Diagnosis, Definition and Classification of Myocarditis. Isn't it time to Start Thinking about Changing?

Review Article | DOI: https://doi.org/10.31579/2641-0419/507

Diagnosis, Definition and Classification of Myocarditis. Isn't it time to Start Thinking about Changing?

  • O.V. Onyshchenko 1
  • D.V. Riabenko 2*
  • O.A. Yepanchintseva 1

1Heart Institute of the Ministry of Health of Ukraine.

2National Scientific Center "Institute of Cardiology, Clinical and Regenerative Medicine named after Academician M.D. National Academy of Medical Sciences of Ukraine.

*Corresponding Author: V. Riabenko, National Scientific Center

Citation: O.V. Onyshchenko, D.V. Riabenko, O.A. Yepanchintseva, (2025), Diagnosis, Definition and Classification of Myocarditis. Isn't it time to Start Thinking about Changing?, J Clinical Cardiology and Cardiovascular Interventions, 8(13); DOI:10.31579/2641-0419/507

Copyright: © 2025, D.V. Riabenko. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Received: 12 August 2025 | Accepted: 08 September 2025 | Published: 19 September 2025

Keywords: myocarditis; definition; classification; endomyocardial biopsy; gadolinium-enhanced cardiac magnetic resonance

Abstract

The paper presents historical changes in the understanding of myocarditis by the medical community. Changes in the priorities and informative value of instrumental methods such as endomyocardial biopsy and gadolinium-enhanced cardiac magnetic resonance imaging in myocarditis are shown.

Changes in the diagnosis and classification of myocarditis are presented. The new staging classification (stages A, B, C and D) according to the American College of Cardiology report (2024) is presented. Changes to the definition and classification of myocarditis are also being proposed for discussion.

Introduction

Myocarditis is an enigmatic condition that continues to elude comprehensive understanding; posing numerous unanswered questions.

The study of this pathology was initiated in the latter half of the seventeenth century; with the seminal work of the renowned French physician Jean-Baptiste Sénac in Traité de la structure du cœur; de son action et de ses maladies (1749) marking a pivotal moment. This seminal work provided the first fundamental description of inflammatory heart disease and the challenges associated with its diagnosis. Subsequently; in 1806; the founder of clinical cardiology; Professor Jean-Nicolas Corvisart; advanced the hypothesis that the root of pathogenic infection lies in the body's inherent variability; and the human organism is inherently vulnerable to succumbing to ailments that pose a threat to its well-being (Karamanou et al.; 2010). And in 1873; J. F. Sobernheim was the first coiner of the term "myocarditis" (Pandey et al.; 2023).

Since that time; there has been a considerable advancement in the field; with the diagnostic process for this disease evolving from a post-mortem examination to a clinical and instrumental lifetime diagnosis.

The present-day diagnosis of the condition is based on the presence of clinical manifestations (e.g. chest pain; heart rhythm and conduction disturbances; symptoms of heart failure (HF)) that can be interpreted as manifestations of myocarditis. Changes in the results of non-invasive and laboratory tests of the "first line" (e.g. electrocardiogram; echocardiogram; inflammatory markers [e.g. the erythrocyte sedimentation rate (ESR); CRP]; levels of highly sensitive cardiac-specific troponins (cTn) I or T; levels of brain natriuretic peptides [BNP]; serum cardiac autoantibodies) may also be indicative of myocarditis (Caforio et al.; 2013). 

The primary instrumental methodologies employed for the establishment (confirmation) of a diagnosis of myocarditis encompass magnetic resonance imaging (MRI) with gadolinium and endomyocardial biopsy (EMB).

Endomyocardial biopsy.

The development of this method was a major turning point in the study of myocarditis. It made it possible for the first time to diagnose of myocarditis during life. In the late 20th century; Japanese researchers S. Sakakibara and S. Konno published studies demonstrating the feasibility of using a flexible bioptome and performing endomyocardial sampling (EMB) with forceps (Sakakibara & Konno; 1962). 

Further modifications of the bioptome (Stanford Caves-Shulz bioptome) by P.K. Caves et al. (1973) rendered it feasible to perform percutaneous biopsies through the right internal jugular vein with only local anaesthesia. This development subsequently became a standard device for EBM for a period of approximately two decades. 

In 1987; the “Dallas criteria” were developed by a group of leading American morphologists (Aretz et al.; 1987). They were the first (and for a long time the main) method of myocarditis identifying and developed a histopathological classification of the disease (Aretz et al.; 1987). 

In 1995; the Working Group of the World Health Organization/International Society and Federation of Cardiology Task Force on the Definition and Classification of Cardiomyopathies among other sources; identified a group of "specific cardiomyopathies"; which included inflammatory cardiomyopathy and myocarditis (Richardson et al.; 1996). The term “inflammatory cardiomyopathy” was defined as myocarditis in combination with cardiac dysfunction. Myocarditis was interpreted as an inflammatory myocardial disease; and it was diagnosed using established histological; immunological and immunohistochemical criteria (Richardson et al.; 1996).

The "Dallas criteria" were in use for almost a 10-year period. However; it was subsequently determined that these histological criteria exhibited high specificity but low sensitivity. L.H. Chow et al. (1989) found that only 25% of autopsy specimens showed histologic signs of myocarditis; and only 10% of patients with HF "de novo" met these criteria (Chow et al.; 1989; Baughman; 2006). 

In 1997; two committees of experts were convened for the purpose of formulating a consensus on the definition of myocarditis; which was referred to as the "Marburg Consensus" (WHF Classification and Consensus Conference; 1997). The Committee defined myocarditis as a process characterized by an inflammatory myocardial infiltrate; the extent of which was to be determined by immunohistochemical examination (WHF Classification and Consensus Conference; 1997).

This Consensus states that the diagnosis of myocarditis should be confirmed when at least 14 infiltrated leukocytes/mm² are detected; predominantly T lymphocytes (CD45RO) or activated T cells (e.g.; CD45RO). This total cell count could also include up to 4 macrophages and 7 cells/mm² or more CD3-positive T lymphocytes (WHF Classification and Consensus Conference; 1997). 

It was also recommended that the amount and distribution of fibrosis be taken into account. The classification system employed in this study categorized fibrosis as follows: grade 0; no fibrosis; grade 1; mild fibrosis; grade 2; moderate fibrosis; and grade 3; severe fibrosis. The localization or formation of fibrosis was to be described as endocardial; replacement; or interstitial. The process was considered to be reparative if focal or diffuse leukocytes were localized in fibrotic areas (WHF Classification and Consensus Conference; 1997).

According to the results obtained from the initial biopsy; the following findings were made (WHF Classification and Consensus Conference; 1997):

  1. Acute (active) myocarditis: A clear-cut infiltrate (diffuse; focal or confluent) of ≥ 14 leukocytes/mm² (preferably activated T-cells). The amount of the infiltrate should be quantitated by immunohistochemistry. Necrosis or degeneration are compulsory; fibrosis may be absent or present and should be graded.
  2. Chronic myocarditis: An infiltrate of ≥ 14 leukocytes/mm² (diffuse; focal or confluent; preferably activated T-cells). Quantification should be made by immunohistochemistry. Necrosis or degeneration are usually not evident; fibrosis may be absent or present and should be graded.
  3. No myocarditis: No infiltrating cells or < 14>
  4. The results of the subsequent (repeated) biopsy were determined:
  5. Ongoing (persistent) myocarditis. Criteria as in 1 or 2 (features of an acute or chronic myocarditis).
  6. Resolving (healing) myocarditis. Criteria as in 1 or 2 but the immunological process is sparser than in the first biopsy.
  7. Resolved (healed) myocarditis. Corresponds to the “Dallas classification”.

The inflammatory infiltrate should be classified as lymphocytic; eosinophilic; neutrophilic; giant cell; granulomatous; or mixed. The distribution should be classified as focal; confluent; or diffuse; respectively.

The EMB method has evolved quite rapidly and; as a result of the integration of histological; immunohistochemical and molecular analysis; has been established as the "gold standard" for the definitive diagnosis of myocarditis (Thiene et al.; 2013). 

Subsequent to the publication of the joint American Heart Association (AHA) and European Society of Cardiology (ESC) guidelines on the role of EMB in cardiovascular disease in 2007; this method has been employed in tertiary care centers worldwide (Cooper et al.; 2007; Cooper; 2024).

In 2013; the European Society of Cardiology Working Group on Myocardial and Pericardial Diseases published a Position Statement; which represented the first attempt to provide specific diagnostic criteria and recommendations for the treatment of myocarditis (Caforio et al.; 2013). The statement summarised current knowledge of the aetiology; pathogenesis; and diagnosis of myocarditis; and attempted to provide standardised definitions for use in future registries and clinical trials on the subject. 

The Statement asserted that the EMB should be considered the "gold standard" for accurate diagnosis of myocarditis. The EMB is capable of verifying a diagnosis of myocarditis; in addition to establishing the fundamental cause of the inflammation and identifying the specific inflammation type (e.g.; giant cell; eosinophilic myocarditis; sarcoidosis). This information enables the determination of different treatment methods and the prediction of patient prognosis. Simultaneously; it was emphasized that this method is not a standard procedure. It was further noted that not all patients with suspected myocarditis should undergo EMB (Caforio et al.; 2013). 

Over the past 10-15 years; there have been significant conceptual changes in the medical community's understanding of the etiopathogenesis; interpretation; classification; and approaches to the treatment of myocarditis. This paradigm change was the result of a substantial number of clinical and experimental studies; as well as the integration of a diverse array of immunological; molecular biological and non-invasive research methodologies into clinical practice.  At the same time; the views on the role of EMB in diagnosing the disease also changed (Ammirati et al; 2020). This was “facilitated” by a significant number of false-negative EMB results due to tissue biopsy errors; especially in moderate and focal inflammatory infiltrates. Thus; A.J. Hauck et al. (1989) showed that usually 4 to 6 biopsy samples are taken during the diagnostic procedure. However; a thorough postmortem analysis of confirmed cases of myocarditis showed that for the correct diagnosis of myocarditis in more than 80% of cases; 17 samples or more are required. It is evident that this number of biopsies cannot be performed in clinical practice; thereby underscoring the deficiency in EMB sensitivity. Moreover; the ESC Task Force (2023) emphasized the necessity of employing experienced teams to perform EMB; and that diagnostic biopsy processing should be conducted exclusively by pathologists with experience working with cardiomyopathies (Arbelo et al.; 2023). Therefore; it was suggested to use (reserve) EMB with quantifying inflammatory cells using immunohistochemistry and the identification of viral genomes only for specific cases. This approach is recommended when the potential benefits of EMB outweigh any potential risks and it results can influence treatment (Arbelo et al.; 2023; Parrillo; 2001; Vidusa et al.; 2022; Dominguez et al.; 2016).

According to some experts; this method with the use immunohistochemical methods (IHC) and polymerase chain reaction (PCR) can be considered the "gold standard" for final diagnosis in patients with fulminant course (i.e.; suspicion of giant cell or eosinophilic myocarditis; vasculitis or sarcoidosis) or lack of response to empiric treatment (Vidusa et al.; 2022; Dominguez et al.; 2016).

In the 2024 American College of Cardiology Report (ACC Expert Consensus Decision Pathway on Strategies and Criteria for the Diagnosis and Management of Myocarditis); the use of EMB is also recommended in individual cases to confirm specific types of myocarditis; including giant cell; eosinophilic; and sarcoidosis (Drazner et al.; 2024). It is emphasised that the evaluation of EMB samples should be performed using IHC counting of inflammatory cells and the use of PCR and reverse transcription of mRNA to DNA (PCR-RT). IHC and molecular biological analysis of EMB help identify the cause of myocarditis and determine which patients need specific therapy (Drazner et al.; 2024).

This is applicable to patients suffering from myocarditis complicated by; for example; decreased ventricular function; symptomatic heart failure; hemodynamic or electrical instability (Drazner et al.; 2024).

At the same time; the place of various methods for the detection of inflammation in the myocardium in routine clinical practice is still under discussion.

Among other non-invasive imaging techniques; cardiac MRI with contrast has become increasingly important in the diagnosis of myocarditis.

Magnetic resonance imaging (MRI) with gadolinium. 

Since the late 1990s; MRI has been extensively used for the diagnosis of myocarditis. The initial publication by M.G. Gagliardi et al. (1991) on T2-weighted MRI results in children with myocarditis was published; and the first controlled clinical trial with contrast enhancement was conducted in 1998 (Friedrich et al.; 1998). Since that time; a significant number of studies have been carried out to demonstrate the diagnostic usefulness of contrast-free and contrast-enhanced MRI in patients with myocarditis (Laissy et al.; 2002; Abdel-Aty et al.; 2005; Gutberlet et al.; 2008; Roditi & Hartnell; 2000; Laissy et al.; 2005; De Cobelli et al.; 2006; Friedrich et al.; 2009).

Contrast-enhanced MRI provides significant insights into the analysis of myocardial morphology and function. This advancement can also be attributed to the replacement of the 2009 Lake Louise criteria with the updated 2018 criteria (Ferreira et al.; 2018; Joudar et al.; 2023). 

These updated Lake Louise Criteria (2018) for non-ischemic myocardial inflammation use T1/T2 mapping (in order to obtain signal values of the myocardium itself) and extracellular volume (ECV) (Ferreira et al.; 2018).  Myocardial fibrosis/edema may be assessed by T1 mapping (Class I recommendation; Level of Evidence: B); and myocardial edema may be evaluated using T2 mapping or T2-weighted imaging (Class I recommendation; Level of Evidence: B) (Nagai et al.; 2023). According to these Criteria (2018); the diagnosis of an inflammatory process requires the presence of at least one T2-based criterion (global or regional increased myocardial T2 relaxation time or increased signal intensity on T2-weighted images) in addition to one T1-based criterion (increased myocardial T1; LGE or ECV) (Ferreira et al.; 2018). 

The use of the updated Lake Louise Criteria (2018) resulted in an enhancement of the method's sensitivity to 87.5% and its specificity to 96.2% (Joudar et al.; 2023). In the ACC Expert Consensus (2024); cardiac MRI using the updated Lake Louise criteria (2018) is classified as a Class I recommendation for stable patients; regardless of myocarditis etiology (Drazner et al.; 2024). MRI provides non-invasive multi-parametric characterisation of myocardial tissue and is the gold standard imaging test for the assessment of cardiac structure and function.

Myocardial changes observed in myocarditis include myocardial edema (intracellular and interstitial); hyperemia; increased vascular permeability or capillary leakage; myocyte injury and necrosis; and the formation of interstitial and/or focal fibrosis and pericardial inflammation or effusion (Drazner et al.; 2024).

This method is especially important for detecting inflammation in the epicardial and middle regions of the myocardium; which is characteristic of acute myocarditis and cannot be diagnosed by EMB (Cooper; 2024). Furthermore; the results of the MRI scan permitted the control of the prognosis (Tschöpe et al.; 2021).

Therefore; it's now believed that cardiac MRI with enhancement should be used not only to diagnose myocarditis in haemodynamically stable patients (class I recommendation; level of evidence A); but also to assess myocardial pathology; risk stratification (class I recommendation; level of evidence B) and evaluation of therapy effectiveness (Nagai et al.; 2023).

Cardiac MRI with enhancement has the highest sensitivity (>85%) and efficacy when performed within the first 1-2 weeks of symptom onset; when edema/inflammation are present (Joudar et al.; 2023; Nagai et al.; 2023; Tschöpe et al.; 2021; Luetkens et al.; 2019; Pan et al.; 2018). 

In addition; American experts have recommended a new staging classification and step-by-step algorithm for the diagnosis of acute myocarditis. The proposed staging of myocarditis includes (Drazner et al.; 2024):

  • Stage A (at-risk for myocarditis) - patients with risk factors for myocarditis (history of previous viral infection (upper respiratory or gastrointestinal); previous myocarditis or autoimmune disease; family history of cardiomyopathy or sudden death; exposure to known cardiotoxic factors; and further development of any of these three symptoms should raise suspicion of myocarditis). 
  • Stage B - asymptomatic patients but with signs of myocarditis; 
  • Stage C - patients with "symptomatic" myocarditis; 
  • Stage D - patients with progressive myocarditis (with haemodynamic or electrical instability requiring intervention).

For general clinical practice; distinguishing between stages A and B is particularly important. Stage A not only reminds doctors to take preventive measures against this disease; but also encourages them to monitor patients who have recovered from myocarditis.

Stage B (asymptomatic myocarditis); on the other hand; allows diagnosis and treatment in the early stages of the disease; increasing the chances that the myocarditis will be uncomplicated and speeding up the recovery of such patients.

Thus; taking into account the conceptual changes in the view of myocarditis and the role of instrumental diagnostic methods of this disease; some revision of the definition and classification of myocarditis is relevant. We propose to discuss the possibility of using the following definition of myocarditis.

Myocarditis is a group of multifactorial inflammatory diseases of the heart muscle characterized by the presence of inflammation and/or non-ischemic damage to heart muscle cells (degeneration and necrosis of adjacent heart muscle cells).

The term "non-ischemic" cardiomyocyte damage is used because these manifestations are one of the MRI criteria for the diagnosis of acute myocarditis and are very common in infarct-like; giant cell and eosinophilic types of myocarditis.

We also propose the following classification of myocarditis. Myocarditis may be:

  • primary - isolated myocardial damage; 
  • secondary - as one of the manifestations (complications) of general diseases (e.g. borreliosis; systemic connective tissue diseases; chronic viral hepatitis; etc.).

I.  According to aetiology:

  • infectious (viral; bacterial; fungal; parasitic; protozoan; rickettsial and spirochetal); 
  • non-infectious (immune-mediated (allergic and toxic-allergic reactions; autoimmune diseases; burn disease and conditions after organ transplantation); associated with cancer treatment with immune checkpoint inhibitors (immune checkpoint inhibitor-related myocarditis) and toxic (exposure to drugs and various cardiotoxic compounds).

II. By the extent of the inflammatory process (according to MRI and/or EMB): 

  • focal;
  • diffuse;

III. The morphological characteristics of the infiltrate (according to the data from the EMB):

  • lymphocytic;
  • eosinophilic
  • Giant cellular;
  • granulomatous.

IV. According to the course:

  • Risk of myocarditis (stage A according to the American College of Cardiology report) - patients with risk factors for myocarditis (history of previous viral infection (upper respiratory or gastrointestinal); previous myocarditis or autoimmune disease; family history of cardiomyopathy or sudden death; exposure to known cardiotoxic factors; and further development of any of these three symptoms should raise suspicion of myocarditis).
  • Acute myocarditis - myocardial inflammation with symptoms of recent onset; usually ≤1 month; elevated high-sensitivity Tn levels and evidence of edema; inflammation and/or damage to the CMV on cardiac MRI or positive cardiac FDG-PET (increased glucose metabolism detected by focal FDG uptake):
  • stage B (according to the American College of Cardiology Report) - asymptomatic patients; but with signs of myocarditis;
  • stage C (according to the American College of Cardiology Report) - patients with "symptomatic" myocarditis.
  • Subacute myocarditis - where symptoms have been present for more than 1 month. It is characterized by signs of interstitial edema and mixed inflammation and the development of healing - granulation tissue consisting of proliferating fibroblasts and new vessels; and initiation of deposition of immature collagen in areas of previous previous cardiomyocyte injury (no fibrosis).
  • Chronic myocarditis - persistent active myocardial inflammation with a duration of symptoms (>1 month) and the presence of healing manifestations - areas of focal or diffuse interstitial; replacement and/or perivascular myocardial fibrosis.
  • Healed (resolved) myocarditis (myocardial fibrosis). 

V.According to the severity of the symptoms and the type of disease:

  • complicated - myocarditis with one or more of the following signs (LVEF <50>
  • uncomplicated - myocarditis characterised by stable patient condition; preserved LVEF and absence of life-threatening rhythm or conduction disturbances) (i.e. patients hospitalised with suspected acute myocarditis):

We believe that such changes in the definition and classification of the "myocarditis" disease group will not only help to improve diagnostic approaches; but also allow for more differentiated treatment of such patients.

Conflicts of Interest

The authors declare no conflicts of interest regarding the publication of this paper.

References

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Rui Tao

Clinical Cardiology and Cardiovascular Interventions I testity the covering of the peer review process, support from the editorial office, and quality of the journal.

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Khurram Arshad

Clinical Cardiology and Cardiovascular Interventions, we deeply appreciate the interest shown in our work and its publication. It has been a true pleasure to collaborate with you. The peer review process, as well as the support provided by the editorial office, have been exceptional, and the quality of the journal is very high, which was a determining factor in our decision to publish with you.

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Gomez Barriga Maria Dolores

The peer reviewers process is quick and effective, the supports from editorial office is excellent, the quality of journal is high. I would like to collabroate with Internatioanl journal of Clinical Case Reports and Reviews journal clinically in the future time.

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Lin Shaw Chin

Clinical Cardiology and Cardiovascular Interventions, I would like to express my sincerest gratitude for the trust placed in our team for the publication in your journal. It has been a true pleasure to collaborate with you on this project. I am pleased to inform you that both the peer review process and the attention from the editorial coordination have been excellent. Your team has worked with dedication and professionalism to ensure that your publication meets the highest standards of quality. We are confident that this collaboration will result in mutual success, and we are eager to see the fruits of this shared effort.

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Maria Dolores Gomez Barriga

Dear Dr. Jessica Magne, Editorial Coordinator 0f Clinical Cardiology and Cardiovascular Interventions, I hope this message finds you well. I want to express my utmost gratitude for your excellent work and for the dedication and speed in the publication process of my article titled "Navigating Innovation: Qualitative Insights on Using Technology for Health Education in Acute Coronary Syndrome Patients." I am very satisfied with the peer review process, the support from the editorial office, and the quality of the journal. I hope we can maintain our scientific relationship in the long term.

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Dr Maria Dolores Gomez Barriga

Dear Monica Gissare, - Editorial Coordinator of Nutrition and Food Processing. ¨My testimony with you is truly professional, with a positive response regarding the follow-up of the article and its review, you took into account my qualities and the importance of the topic¨.

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Dr Maria Regina Penchyna Nieto

Dear Dr. Jessica Magne, Editorial Coordinator 0f Clinical Cardiology and Cardiovascular Interventions, The review process for the article “The Handling of Anti-aggregants and Anticoagulants in the Oncologic Heart Patient Submitted to Surgery” was extremely rigorous and detailed. From the initial submission to the final acceptance, the editorial team at the “Journal of Clinical Cardiology and Cardiovascular Interventions” demonstrated a high level of professionalism and dedication. The reviewers provided constructive and detailed feedback, which was essential for improving the quality of our work. Communication was always clear and efficient, ensuring that all our questions were promptly addressed. The quality of the “Journal of Clinical Cardiology and Cardiovascular Interventions” is undeniable. It is a peer-reviewed, open-access publication dedicated exclusively to disseminating high-quality research in the field of clinical cardiology and cardiovascular interventions. The journal's impact factor is currently under evaluation, and it is indexed in reputable databases, which further reinforces its credibility and relevance in the scientific field. I highly recommend this journal to researchers looking for a reputable platform to publish their studies.

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Dr Marcelo Flavio Gomes Jardim Filho

Dear Editorial Coordinator of the Journal of Nutrition and Food Processing! "I would like to thank the Journal of Nutrition and Food Processing for including and publishing my article. The peer review process was very quick, movement and precise. The Editorial Board has done an extremely conscientious job with much help, valuable comments and advices. I find the journal very valuable from a professional point of view, thank you very much for allowing me to be part of it and I would like to participate in the future!”

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Zsuzsanna Bene

Dealing with The Journal of Neurology and Neurological Surgery was very smooth and comprehensive. The office staff took time to address my needs and the response from editors and the office was prompt and fair. I certainly hope to publish with this journal again.Their professionalism is apparent and more than satisfactory. Susan Weiner

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Dr Susan Weiner

My Testimonial Covering as fellowing: Lin-Show Chin. The peer reviewers process is quick and effective, the supports from editorial office is excellent, the quality of journal is high. I would like to collabroate with Internatioanl journal of Clinical Case Reports and Reviews.

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Lin-Show Chin

My experience publishing in Psychology and Mental Health Care was exceptional. The peer review process was rigorous and constructive, with reviewers providing valuable insights that helped enhance the quality of our work. The editorial team was highly supportive and responsive, making the submission process smooth and efficient. The journal's commitment to high standards and academic rigor makes it a respected platform for quality research. I am grateful for the opportunity to publish in such a reputable journal.

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Sonila Qirko

My experience publishing in International Journal of Clinical Case Reports and Reviews was exceptional. I Come forth to Provide a Testimonial Covering the Peer Review Process and the editorial office for the Professional and Impartial Evaluation of the Manuscript.

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Luiz Sellmann

I would like to offer my testimony in the support. I have received through the peer review process and support the editorial office where they are to support young authors like me, encourage them to publish their work in your esteemed journals, and globalize and share knowledge globally. I really appreciate your journal, peer review, and editorial office.

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Zhao Jia

Dear Agrippa Hilda- Editorial Coordinator of Journal of Neuroscience and Neurological Surgery, "The peer review process was very quick and of high quality, which can also be seen in the articles in the journal. The collaboration with the editorial office was very good."

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Thomas Urban

I would like to express my sincere gratitude for the support and efficiency provided by the editorial office throughout the publication process of my article, “Delayed Vulvar Metastases from Rectal Carcinoma: A Case Report.” I greatly appreciate the assistance and guidance I received from your team, which made the entire process smooth and efficient. The peer review process was thorough and constructive, contributing to the overall quality of the final article. I am very grateful for the high level of professionalism and commitment shown by the editorial staff, and I look forward to maintaining a long-term collaboration with the International Journal of Clinical Case Reports and Reviews.

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Cristina Berriozabal

To Dear Erin Aust, I would like to express my heartfelt appreciation for the opportunity to have my work published in this esteemed journal. The entire publication process was smooth and well-organized, and I am extremely satisfied with the final result. The Editorial Team demonstrated the utmost professionalism, providing prompt and insightful feedback throughout the review process. Their clear communication and constructive suggestions were invaluable in enhancing my manuscript, and their meticulous attention to detail and dedication to quality are truly commendable. Additionally, the support from the Editorial Office was exceptional. From the initial submission to the final publication, I was guided through every step of the process with great care and professionalism. The team's responsiveness and assistance made the entire experience both easy and stress-free. I am also deeply impressed by the quality and reputation of the journal. It is an honor to have my research featured in such a respected publication, and I am confident that it will make a meaningful contribution to the field.

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Dr Tewodros Kassahun Tarekegn

"I am grateful for the opportunity of contributing to [International Journal of Clinical Case Reports and Reviews] and for the rigorous review process that enhances the quality of research published in your esteemed journal. I sincerely appreciate the time and effort of your team who have dedicatedly helped me in improvising changes and modifying my manuscript. The insightful comments and constructive feedback provided have been invaluable in refining and strengthening my work".

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Dr Shweta Tiwari

I thank the ‘Journal of Clinical Research and Reports’ for accepting this article for publication. This is a rigorously peer reviewed journal which is on all major global scientific data bases. I note the review process was prompt, thorough and professionally critical. It gave us an insight into a number of important scientific/statistical issues. The review prompted us to review the relevant literature again and look at the limitations of the study. The peer reviewers were open, clear in the instructions and the editorial team was very prompt in their communication. This journal certainly publishes quality research articles. I would recommend the journal for any future publications.

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Dr Farooq Wandroo

Dear Jessica Magne, with gratitude for the joint work. Fast process of receiving and processing the submitted scientific materials in “Clinical Cardiology and Cardiovascular Interventions”. High level of competence of the editors with clear and correct recommendations and ideas for enriching the article.

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Dr Anyuta Ivanova

We found the peer review process quick and positive in its input. The support from the editorial officer has been very agile, always with the intention of improving the article and taking into account our subsequent corrections.

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Dr David Vinyes

My article, titled 'No Way Out of the Smartphone Epidemic Without Considering the Insights of Brain Research,' has been republished in the International Journal of Clinical Case Reports and Reviews. The review process was seamless and professional, with the editors being both friendly and supportive. I am deeply grateful for their efforts.

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Gertraud Teuchert-Noodt

To Dear Erin Aust – Editorial Coordinator of Journal of General Medicine and Clinical Practice! I declare that I am absolutely satisfied with your work carried out with great competence in following the manuscript during the various stages from its receipt, during the revision process to the final acceptance for publication. Thank Prof. Elvira Farina

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Dr Elvira Farina

Dear Jessica, and the super professional team of the ‘Clinical Cardiology and Cardiovascular Interventions’ I am sincerely grateful to the coordinated work of the journal team for the no problem with the submission of my manuscript: “Cardiometabolic Disorders in A Pregnant Woman with Severe Preeclampsia on the Background of Morbid Obesity (Case Report).” The review process by 5 experts was fast, and the comments were professional, which made it more specific and academic, and the process of publication and presentation of the article was excellent. I recommend that my colleagues publish articles in this journal, and I am interested in further scientific cooperation. Sincerely and best wishes, Dr. Oleg Golyanovskiy.

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Dr Oleg Golyanovski

Dear Ashley Rosa, Editorial Coordinator of the journal - Psychology and Mental Health Care. " The process of obtaining publication of my article in the Psychology and Mental Health Journal was positive in all areas. The peer review process resulted in a number of valuable comments, the editorial process was collaborative and timely, and the quality of this journal has been quickly noticed, resulting in alternative journals contacting me to publish with them." Warm regards, Susan Anne Smith, PhD. Australian Breastfeeding Association.

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Dr Susan Anne Smith

Dear Jessica Magne, Editorial Coordinator, Clinical Cardiology and Cardiovascular Interventions, Auctores Publishing LLC. I appreciate the journal (JCCI) editorial office support, the entire team leads were always ready to help, not only on technical front but also on thorough process. Also, I should thank dear reviewers’ attention to detail and creative approach to teach me and bring new insights by their comments. Surely, more discussions and introduction of other hemodynamic devices would provide better prevention and management of shock states. Your efforts and dedication in presenting educational materials in this journal are commendable. Best wishes from, Farahnaz Fallahian.

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Dr Farahnaz Fallahian

Dear Maria Emerson, Editorial Coordinator, International Journal of Clinical Case Reports and Reviews, Auctores Publishing LLC. I am delighted to have published our manuscript, "Acute Colonic Pseudo-Obstruction (ACPO): A rare but serious complication following caesarean section." I want to thank the editorial team, especially Maria Emerson, for their prompt review of the manuscript, quick responses to queries, and overall support. Yours sincerely Dr. Victor Olagundoye.

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Dr Victor Olagundoye

Dear Ashley Rosa, Editorial Coordinator, International Journal of Clinical Case Reports and Reviews. Many thanks for publishing this manuscript after I lost confidence the editors were most helpful, more than other journals Best wishes from, Susan Anne Smith, PhD. Australian Breastfeeding Association.

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Dr Susan Anne Smith

Dear Agrippa Hilda, Editorial Coordinator, Journal of Neuroscience and Neurological Surgery. The entire process including article submission, review, revision, and publication was extremely easy. The journal editor was prompt and helpful, and the reviewers contributed to the quality of the paper. Thank you so much! Eric Nussbaum, MD

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Dr Eric S Nussbaum

Dr Hala Al Shaikh This is to acknowledge that the peer review process for the article ’ A Novel Gnrh1 Gene Mutation in Four Omani Male Siblings, Presentation and Management ’ sent to the International Journal of Clinical Case Reports and Reviews was quick and smooth. The editorial office was prompt with easy communication.

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Hala Al Shaikh

Dear Erin Aust, Editorial Coordinator, Journal of General Medicine and Clinical Practice. We are pleased to share our experience with the “Journal of General Medicine and Clinical Practice”, following the successful publication of our article. The peer review process was thorough and constructive, helping to improve the clarity and quality of the manuscript. We are especially thankful to Ms. Erin Aust, the Editorial Coordinator, for her prompt communication and continuous support throughout the process. Her professionalism ensured a smooth and efficient publication experience. The journal upholds high editorial standards, and we highly recommend it to fellow researchers seeking a credible platform for their work. Best wishes By, Dr. Rakhi Mishra.

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Dr Rakhi Mishra

Dear Jessica Magne, Editorial Coordinator, Clinical Cardiology and Cardiovascular Interventions, Auctores Publishing LLC. The peer review process of the journal of Clinical Cardiology and Cardiovascular Interventions was excellent and fast, as was the support of the editorial office and the quality of the journal. Kind regards Walter F. Riesen Prof. Dr. Dr. h.c. Walter F. Riesen.

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Dr Walter F Riesen

Dear Ashley Rosa, Editorial Coordinator, International Journal of Clinical Case Reports and Reviews, Auctores Publishing LLC. Thank you for publishing our article, Exploring Clozapine's Efficacy in Managing Aggression: A Multiple Single-Case Study in Forensic Psychiatry in the international journal of clinical case reports and reviews. We found the peer review process very professional and efficient. The comments were constructive, and the whole process was efficient. On behalf of the co-authors, I would like to thank you for publishing this article. With regards, Dr. Jelle R. Lettinga.

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Dr Jelle Lettinga

Dear Clarissa Eric, Editorial Coordinator, Journal of Clinical Case Reports and Studies, I would like to express my deep admiration for the exceptional professionalism demonstrated by your journal. I am thoroughly impressed by the speed of the editorial process, the substantive and insightful reviews, and the meticulous preparation of the manuscript for publication. Additionally, I greatly appreciate the courteous and immediate responses from your editorial office to all my inquiries. Best Regards, Dariusz Ziora

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Dariusz Ziora

Dear Chrystine Mejia, Editorial Coordinator, Journal of Neurodegeneration and Neurorehabilitation, Auctores Publishing LLC, We would like to thank the editorial team for the smooth and high-quality communication leading up to the publication of our article in the Journal of Neurodegeneration and Neurorehabilitation. The reviewers have extensive knowledge in the field, and their relevant questions helped to add value to our publication. Kind regards, Dr. Ravi Shrivastava.

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Dr Ravi Shrivastava

Dear Clarissa Eric, Editorial Coordinator, Journal of Clinical Case Reports and Studies, Auctores Publishing LLC, USA Office: +1-(302)-520-2644. I would like to express my sincere appreciation for the efficient and professional handling of my case report by the ‘Journal of Clinical Case Reports and Studies’. The peer review process was not only fast but also highly constructive—the reviewers’ comments were clear, relevant, and greatly helped me improve the quality and clarity of my manuscript. I also received excellent support from the editorial office throughout the process. Communication was smooth and timely, and I felt well guided at every stage, from submission to publication. The overall quality and rigor of the journal are truly commendable. I am pleased to have published my work with Journal of Clinical Case Reports and Studies, and I look forward to future opportunities for collaboration. Sincerely, Aline Tollet, UCLouvain.

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Dr Aline Tollet

Dear Ms. Mayra Duenas, Editorial Coordinator, International Journal of Clinical Case Reports and Reviews. “The International Journal of Clinical Case Reports and Reviews represented the “ideal house” to share with the research community a first experience with the use of the Simeox device for speech rehabilitation. High scientific reputation and attractive website communication were first determinants for the selection of this Journal, and the following submission process exceeded expectations: fast but highly professional peer review, great support by the editorial office, elegant graphic layout. Exactly what a dynamic research team - also composed by allied professionals - needs!" From, Chiara Beccaluva, PT - Italy.

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Dr Chiara Giuseppina Beccaluva

Dear Maria Emerson, Editorial Coordinator, we have deeply appreciated the professionalism demonstrated by the International Journal of Clinical Case Reports and Reviews. The reviewers have extensive knowledge of our field and have been very efficient and fast in supporting the process. I am really looking forward to further collaboration. Thanks. Best regards, Dr. Claudio Ligresti

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Dr Claudio Ligresti

Dear Chrystine Mejia, Editorial Coordinator, Journal of Neurodegeneration and Neurorehabilitation. “The peer review process was efficient and constructive, and the editorial office provided excellent communication and support throughout. The journal ensures scientific rigor and high editorial standards, while also offering a smooth and timely publication process. We sincerely appreciate the work of the editorial team in facilitating the dissemination of innovative approaches such as the Bonori Method.” Best regards, Dr. Matteo Bonori.

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Dr Matteo Bonori

I recommend without hesitation submitting relevant papers on medical decision making to the International Journal of Clinical Case Reports and Reviews. I am very grateful to the editorial staff. Maria Emerson was a pleasure to communicate with. The time from submission to publication was an extremely short 3 weeks. The editorial staff submitted the paper to three reviewers. Two of the reviewers commented positively on the value of publishing the paper. The editorial staff quickly recognized the third reviewer’s comments as an unjust attempt to reject the paper. I revised the paper as recommended by the first two reviewers.

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Edouard Kujawski

Dear Maria Emerson, Editorial Coordinator, Journal of Clinical Research and Reports. Thank you for publishing our case report: "Clinical Case of Effective Fetal Stem Cells Treatment in a Patient with Autism Spectrum Disorder" within the "Journal of Clinical Research and Reports" being submitted by the team of EmCell doctors from Kyiv, Ukraine. We much appreciate a professional and transparent peer-review process from Auctores. All research Doctors are so grateful to your Editorial Office and Auctores Publishing support! I amiably wish our article publication maintained a top quality of your International Scientific Journal. My best wishes for a prosperity of the Journal of Clinical Research and Reports. Hope our scientific relationship and cooperation will remain long lasting. Thank you very much indeed. Kind regards, Dr. Andriy Sinelnyk Cell Therapy Center EmCell

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Dr Andriy Sinelnyk