An Elderly COVID-19 Pneumonia with Stroke, and QTc Prolongation, Fragmentation of the QRS-complex, and Connected Aircraft Squadron Electrocardiographic Sign (Yasser’s sign); Multiple Risk and Serious Implications

Case Report | DOI: https://doi.org/10.31579/2690-4861/187

An Elderly COVID-19 Pneumonia with Stroke, and QTc Prolongation, Fragmentation of the QRS-complex, and Connected Aircraft Squadron Electrocardiographic Sign (Yasser’s sign); Multiple Risk and Serious Implications

  • Yasser Mohammed Hassanain Elsayed

Critical Care Unit, Kafr El-Bateekh Central Hospital, Damietta Health Affairs, Egyptian Ministry of Health (MOH), Damietta, Egypt.

*Corresponding Author: Yasser Mohammed Hassanain Elsayed, Critical Care Unit, Kafr El-Bateekh Central Hospital, Damietta Health Affairs, Egyptian Ministry of Health (MOH), Damietta, Egypt.

Citation: Y M H Elsayed. (2022). Anaesthetic and perioperative management of elderly female with post covid ARDS with comorbities undergoing emergency Laparotomy for obstructed umbilical hernia. International Journal of Clinical Case Reports and Reviews. 10(3); DOI: 10.31579/2690-4861/187

Copyright: © 2022 Yasser Mohammed Hassanain Elsayed, This is an open access article distributed under the Creative Commons Attributiosn License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Received: 22 October 2021 | Accepted: 11 January 2022 | Published: 19 January 2022

Keywords: Covid-19; pneumonia; stroke; qtc-interval prolongation; fragmentation of the qrs-complex; connected aircraft squadron electrocardiographic sign (yasser’s sign)

Abstract

Rationale: COVID-19 infection is a wide-world pandemic serious highly infectious multisystem disease. Neurological, cardiovascular, hepatic, and renal systems are commonly involved. Connected aircraft squadron electrocardiographic sign (Yasser’s sign) is a novel electrocardiographic sign which a relevant to T-wave changes and respiratory rate. This sign is a strong guide for tachypnea. QTc-interval prolongation is a serious signal for torsades de pointes, fatal ventricular tachyarrhythmias, and sudden death. Previously, fragmentation of the QRS-complex had already been considered a marker for structural heart diseases (SHD) triggering cardiac hypertrophy.

Patient concerns: An 88-year-old, carpenter, smoker, married Egyptian male patient was admitted to the critical care unit with cerebrovascular stroke, cardiac involvement, and COVID-19 pneumonia. 

Diagnosis: COVID-19 pneumonia with acute neurological events and cardiovascular involvement. 

Interventions: Electrocardiography, oxygenation, non-contrasted chest CT, and brain CT

Outcomes: Good response and better outcomes despite the presence of several remarkable risk factors were the results. 

Lessons: The clinical and electrocardiographic response after using anti-COVID19 measures the signifying its role and suggest the diagnosis of COVID19 infection. The presence of COVID-19 pneumonia, stroke, QTc-interval prolongation, fragmentation of the QRS-complex, hypocalcemia, Connected aircraft squadron electrocardiographic sign (Yasser’s sign) with severe fatigue, elderly, and cigarette smoking are prognostic factors for the severity of the disease.

Abbreviations

COVID-19: Coronavirus disease 2019

ECG: Electrocardiogram

ICU: Intensive care unit

O2: Oxygen

QTC: corrected QT interval

SGOT: Serum glutamic-oxaloacetic transaminase

SGPT: Serum glutamic-pyruvic transaminase 

TdP; torsades de pointes

VR: Ventricular rate 

Introduction

Acute ischemic cerebrovascular accident (CVA) may happen in cases of coronavirus disease 2019 (COVID-19). The risk factors involving both in-hospital events and outcomes are still not well-been studied in large cohorts [1]. Although there is a relationship between QT-interval duration and the risk of torsades de pointes (TdP) is still not fully understood, a corrected QT interval (QTC) of >500ms [2] or an increase in the QTC of >60ms [3] is mostly index for a high risk of TdP. However, QT prolongation is an inducer marker for the developing TdP.  Screen for other risk factors for QT prolongation, including drug interactions, electrolyte disorders such as hypokalaemia, and renal dysfunction are is pivotal in management. ECGs should be performed in all patients with symptoms of arrhythmia and periodically in patients at high risk of QT prolongation/TdP4. Correct modifiable risk factors areessential [4]. The term ‘fragmentation of the QRS-complex” or “fragmented QRS” (fQRS) point to the existence of high-frequency potentials (spikes) in the QRS-complex [5]. The expression was first described in 1973 in reporting of an experimental study on canine hearts where coronary artery obstruction motivated the occurrence of fragmented electrograms as a source of reentrant activity [6]. Formerly, fQRS had already been considered a marker for structural heart diseases (SHD) triggering biventricular hypertrophy [7]. The presence of fQRS can be induced by any condition interrupting with the normally homogeneous depolarisation status in the myocardium and yielding regional conduction decelerating such as ischemia, scar, fibrosis, myofiber disarray, inflammation, and microvascular abnormality5. Das et al. revealed that there was a good correlation between fQRS and the presence of myocardial scar in patients with ischemic heart disease (IHD) that appeared by single-photon emission tomography (SPET) [8]. Connected aircraft squadron electrocardiographic sign is a new strong index for monitoring and follows up the tachypneic patients with specific T- waves changes in special leads in several cardiorespiratory patients [9]. Three types were described; 1. Type I: comprises only eighteen patients of investigated tachypnea with T-wave changes among both I and II leads, and with aVL and aVF leads. 2. Type II: comprises four patients of tachypnea with T-wave changes only between aVL and aVF leads. 3. Type III: comprises two patients of tachypnea with T-wave changes only between V1 and V2 leads [9]. There are four reported morphological degrees for the sign: 1. first degree: the presence of sign configuration (shared). 2. Second degree: the presence of approximation between the target inverted and an upright T-wave. 3. Third degree: the presence of connecting the target inverted and an upright T-wave. 4. Fourth degree: the presence of gap interlacing both the target inverted and an upright T-wave 9.

Case Presentations

An 88-year-old married, Carpenter, smoker, Egyptian, male patient was admitted to the intensive care unit (ICU) with left side weakness and dizziness. Generalized body aches and fatigue were the associated symptoms. He gave a history of fever, cough, and generalized body aches 4 days ago. The patient is a currently heavy smoker (at least 20 cigarettes for about 40 years). He denied a history of cardiovascular diseases, the same attack, drugs, or any other special habits. There was a recent positive history for contact with a COVID-19 confirmed patient. Informed consent was taken. Upon general physical examination; generally, the patient was in awareness, alert, and wakeful, with GCS; 15 regular heart rate of 60 bpm, blood pressure of 110/70 mmHg, respiratory rate of 10 bpm, the temperature of 36 °C, and pulse oximeter of O2 saturation of 91%. Deep reflexes, sensation, and gait were normal. No more relevant clinical data were noted during the clinical examination. Urgent initial ECG tracing was done on the presentation in the ICU showing type II, grade I Connected aircraft squadron electrocardiographic sign (Yasser’s sign), dominant R-waves in V1 and V2 with T-wave inversions, QTc-interval prolongation, a Wavy triple sign appears in V3 and V4 leads, and QRS-fragmentations (Figure 1). O2 inhalation (100%, by nasal cannula, 5L/min) was given. The patient was maintain treated with cefotaxime; (1000 mg IV every 8hours), azithromycin (500 mg PO single daily dose), oseltamivir (75 mg PO twice daily only for 5 days), and paracetamol (500 mg IV every 8 hours as needed). SC enoxaparin 40 mg twice daily), aspirin tablet (75 mg, once daily), clopidogrel tablet (75 mg, once daily), and hydrocortisone sodium succinate (100 mg IV every 12 hours) were added. The patient was daily monitored for temperature, pulse, blood pressure, and O2 saturation. The initial complete blood count (CBC); Hb was 10.7 g/dl, RBCs; 3.95*103/mm3, WBCs; 11.2*103/mm3 (Neutrophils; 84.6 %, Lymphocytes: 12.4%, Monocytes; 2%, Eosinophils; 1% and Basophils 0%), Platelets; 158*103/mm3. Serum creatinine was normal (0.9 mg/dl) and blood urea was normal (29 mg/dl). RBS was normal (179 mg/dl). Ionized calcium was slightly low (0.78 mmol/L), plasma sodium was normal (141 mmol/L), and serum potassium was normal (4.6 mmol/L). SGPT was normal (18 U/L), SGOT was normal (24 U/L). Total bilirubin was normal (0.7 mg/dl). D-dimer was normal (302 ng/ml). CRP was high (30.4 g/dl). Ferritin was high (387 ng/ml). LDH was high (275 U/L). The troponin test was negative (0.1 ng/L). Chest CT without contrast was done within 5 days of the presentation showing bilateral patchy ground-glass pulmonary consolidation in the peripheral, basal, and posterior segments (Figure 2A and 2B). A brain CT scan was done within 4 days of the presentation showing evidence of matched brain atrophic senile changes with chronic ischemic white matter changes. (Figure 2C). COVID-19 pneumonia with neurological and cardiovascular involvement was the most probable diagnosis. The patient was discharged on the fifth day after clinical and electrocardiographic improvement. The patient was continued: aspirin tablet (75 mg, once daily) and clopidogrel tablet (75 mg, once daily). The patient was advised for cardiovascular, pulmonary, infectious, and neurological diseases follow-up.

Figure 1: An initial ECG tracing was done on the presentation in the ICU showing type II, grade I Connected aircraft squadron electrocardiographic sign (Yasser’s sign; red, green, and yellow arrows), Dominant R-waves in V1 and V2 with T-wave inversions (brown arrows). QTc-interval prolongation (480 msec; dark blue and orange rectangles), a Wavy triple sign appears in V3 and V4 leads.  (lime, red, and blue arrows), and QRS-fragmentation(purple arrows).
Figure 2 - Axial (A) and Sagital (B) chest CT sections without contrast were done within 5 days of the presentation showing bilateral patchy ground-glass pulmonary consolidation in the peripheral, basal, and posterior segments (lime and orange arrows). Brain CT scan (C) was done within 4 days of the presentation showing evidence of mashed brain atrophic senile changes with chronic ischemic white matter changes.

Discussion

Overview

A 88-year-old married, Carpenter, smoker, Egyptian male patient was admitted to the ICU with cerebrovascular stroke, cardiac involvement, and COVID-19 pneumonia.     

The primary objective for my case study was the presence of a patient who presented with cerebrovascular stroke, cardiac involvement, and COVID-19 pneumonia in the ICU.

The secondary objective for my case study was the question of; How did you manage the case at home?

The presence of direct contact to confirmed the COVID-19 case, and bilateral ground-glass consolidation, lymphopenia, neutrophlilia with higher activity indices such as CRP, s-ferritin, and LDH will strengthen the COVID-19 diagnosis.

The presence of elderly, pneumonia, stroke, heavy cigarette smoking, QTc-interval prolongation, and QRS-fragmentation are aconstellation of serious risk factors.

The presence of fragmentation of the QRS-complex is considered another risk. 

There is a type I, grade I Connected aircraft squadron electrocardiographic sign (Yasser’s sign) that may be an indicator for severe fatigue [9].

The existence of stroke with brain CT scan evidence of chronic ischemic white matter changes is mostly aggravated by COVID-19 infection. 

I can’t compare the current case with similar conditions. There are no similar or known cases with the same management for near comparison.

The only limitations of the current study are the absence of serial ECG tracings at the time of hospitalization.  

Conclusion and Recommendations

The clinical and electrocardiographic response after using anti-COVID19 measures the signifying its role and suggest the diagnosis of COVID19 infection. 

The presence of COVID-19 pneumonia, stroke, QTc-interval prolongation, hypocalcemia, connected aircraft squadron electrocardiographic sign (Yasser’s sign) with severe fatigue, elderly, and cigarette smoking are prognostic factors for the severity of the disease.

Acknowledgements

I wish to thank the team of nurses in the critical care unit in Faraskour Central Hospital who make extra-ECG copies for helping me. Also, I want to thanks my wife to save time and improving the conditions for supporting me.

Conflicts of interest 

There are no conflicts of interest.

References

Clearly Auctoresonline and particularly Psychology and Mental Health Care Journal is dedicated to improving health care services for individuals and populations. The editorial boards' ability to efficiently recognize and share the global importance of health literacy with a variety of stakeholders. Auctoresonline publishing platform can be used to facilitate of optimal client-based services and should be added to health care professionals' repertoire of evidence-based health care resources.

img

Virginia E. Koenig

Journal of Clinical Cardiology and Cardiovascular Intervention The submission and review process was adequate. However I think that the publication total value should have been enlightened in early fases. Thank you for all.

img

Delcio G Silva Junior

Journal of Women Health Care and Issues By the present mail, I want to say thank to you and tour colleagues for facilitating my published article. Specially thank you for the peer review process, support from the editorial office. I appreciate positively the quality of your journal.

img

Ziemlé Clément Méda

Journal of Clinical Research and Reports I would be very delighted to submit my testimonial regarding the reviewer board and the editorial office. The reviewer board were accurate and helpful regarding any modifications for my manuscript. And the editorial office were very helpful and supportive in contacting and monitoring with any update and offering help. It was my pleasure to contribute with your promising Journal and I am looking forward for more collaboration.

img

Mina Sherif Soliman Georgy

We would like to thank the Journal of Thoracic Disease and Cardiothoracic Surgery because of the services they provided us for our articles. The peer-review process was done in a very excellent time manner, and the opinions of the reviewers helped us to improve our manuscript further. The editorial office had an outstanding correspondence with us and guided us in many ways. During a hard time of the pandemic that is affecting every one of us tremendously, the editorial office helped us make everything easier for publishing scientific work. Hope for a more scientific relationship with your Journal.

img

Layla Shojaie

The peer-review process which consisted high quality queries on the paper. I did answer six reviewers’ questions and comments before the paper was accepted. The support from the editorial office is excellent.

img

Sing-yung Wu

Journal of Neuroscience and Neurological Surgery. I had the experience of publishing a research article recently. The whole process was simple from submission to publication. The reviewers made specific and valuable recommendations and corrections that improved the quality of my publication. I strongly recommend this Journal.

img

Orlando Villarreal

Dr. Katarzyna Byczkowska My testimonial covering: "The peer review process is quick and effective. The support from the editorial office is very professional and friendly. Quality of the Clinical Cardiology and Cardiovascular Interventions is scientific and publishes ground-breaking research on cardiology that is useful for other professionals in the field.

img

Katarzyna Byczkowska

Thank you most sincerely, with regard to the support you have given in relation to the reviewing process and the processing of my article entitled "Large Cell Neuroendocrine Carcinoma of The Prostate Gland: A Review and Update" for publication in your esteemed Journal, Journal of Cancer Research and Cellular Therapeutics". The editorial team has been very supportive.

img

Anthony Kodzo-Grey Venyo

Testimony of Journal of Clinical Otorhinolaryngology: work with your Reviews has been a educational and constructive experience. The editorial office were very helpful and supportive. It was a pleasure to contribute to your Journal.

img

Pedro Marques Gomes

Dr. Bernard Terkimbi Utoo, I am happy to publish my scientific work in Journal of Women Health Care and Issues (JWHCI). The manuscript submission was seamless and peer review process was top notch. I was amazed that 4 reviewers worked on the manuscript which made it a highly technical, standard and excellent quality paper. I appreciate the format and consideration for the APC as well as the speed of publication. It is my pleasure to continue with this scientific relationship with the esteem JWHCI.

img

Bernard Terkimbi Utoo

This is an acknowledgment for peer reviewers, editorial board of Journal of Clinical Research and Reports. They show a lot of consideration for us as publishers for our research article “Evaluation of the different factors associated with side effects of COVID-19 vaccination on medical students, Mutah university, Al-Karak, Jordan”, in a very professional and easy way. This journal is one of outstanding medical journal.

img

Prof Sherif W Mansour

Dear Hao Jiang, to Journal of Nutrition and Food Processing We greatly appreciate the efficient, professional and rapid processing of our paper by your team. If there is anything else we should do, please do not hesitate to let us know. On behalf of my co-authors, we would like to express our great appreciation to editor and reviewers.

img

Hao Jiang

As an author who has recently published in the journal "Brain and Neurological Disorders". I am delighted to provide a testimonial on the peer review process, editorial office support, and the overall quality of the journal. The peer review process at Brain and Neurological Disorders is rigorous and meticulous, ensuring that only high-quality, evidence-based research is published. The reviewers are experts in their fields, and their comments and suggestions were constructive and helped improve the quality of my manuscript. The review process was timely and efficient, with clear communication from the editorial office at each stage. The support from the editorial office was exceptional throughout the entire process. The editorial staff was responsive, professional, and always willing to help. They provided valuable guidance on formatting, structure, and ethical considerations, making the submission process seamless. Moreover, they kept me informed about the status of my manuscript and provided timely updates, which made the process less stressful. The journal Brain and Neurological Disorders is of the highest quality, with a strong focus on publishing cutting-edge research in the field of neurology. The articles published in this journal are well-researched, rigorously peer-reviewed, and written by experts in the field. The journal maintains high standards, ensuring that readers are provided with the most up-to-date and reliable information on brain and neurological disorders. In conclusion, I had a wonderful experience publishing in Brain and Neurological Disorders. The peer review process was thorough, the editorial office provided exceptional support, and the journal's quality is second to none. I would highly recommend this journal to any researcher working in the field of neurology and brain disorders.

img

Dr Shiming Tang

Dear Agrippa Hilda, Journal of Neuroscience and Neurological Surgery, Editorial Coordinator, I trust this message finds you well. I want to extend my appreciation for considering my article for publication in your esteemed journal. I am pleased to provide a testimonial regarding the peer review process and the support received from your editorial office. The peer review process for my paper was carried out in a highly professional and thorough manner. The feedback and comments provided by the authors were constructive and very useful in improving the quality of the manuscript. This rigorous assessment process undoubtedly contributes to the high standards maintained by your journal.

img

Raed Mualem

International Journal of Clinical Case Reports and Reviews. I strongly recommend to consider submitting your work to this high-quality journal. The support and availability of the Editorial staff is outstanding and the review process was both efficient and rigorous.

img

Andreas Filippaios

Thank you very much for publishing my Research Article titled “Comparing Treatment Outcome Of Allergic Rhinitis Patients After Using Fluticasone Nasal Spray And Nasal Douching" in the Journal of Clinical Otorhinolaryngology. As Medical Professionals we are immensely benefited from study of various informative Articles and Papers published in this high quality Journal. I look forward to enriching my knowledge by regular study of the Journal and contribute my future work in the field of ENT through the Journal for use by the medical fraternity. The support from the Editorial office was excellent and very prompt. I also welcome the comments received from the readers of my Research Article.

img

Dr Suramya Dhamija

Dear Erica Kelsey, Editorial Coordinator of Cancer Research and Cellular Therapeutics Our team is very satisfied with the processing of our paper by your journal. That was fast, efficient, rigorous, but without unnecessary complications. We appreciated the very short time between the submission of the paper and its publication on line on your site.

img

Bruno Chauffert

I am very glad to say that the peer review process is very successful and fast and support from the Editorial Office. Therefore, I would like to continue our scientific relationship for a long time. And I especially thank you for your kindly attention towards my article. Have a good day!

img

Baheci Selen

"We recently published an article entitled “Influence of beta-Cyclodextrins upon the Degradation of Carbofuran Derivatives under Alkaline Conditions" in the Journal of “Pesticides and Biofertilizers” to show that the cyclodextrins protect the carbamates increasing their half-life time in the presence of basic conditions This will be very helpful to understand carbofuran behaviour in the analytical, agro-environmental and food areas. We greatly appreciated the interaction with the editor and the editorial team; we were particularly well accompanied during the course of the revision process, since all various steps towards publication were short and without delay".

img

Jesus Simal-Gandara

I would like to express my gratitude towards you process of article review and submission. I found this to be very fair and expedient. Your follow up has been excellent. I have many publications in national and international journal and your process has been one of the best so far. Keep up the great work.

img

Douglas Miyazaki

We are grateful for this opportunity to provide a glowing recommendation to the Journal of Psychiatry and Psychotherapy. We found that the editorial team were very supportive, helpful, kept us abreast of timelines and over all very professional in nature. The peer review process was rigorous, efficient and constructive that really enhanced our article submission. The experience with this journal remains one of our best ever and we look forward to providing future submissions in the near future.

img

Dr Griffith

I am very pleased to serve as EBM of the journal, I hope many years of my experience in stem cells can help the journal from one way or another. As we know, stem cells hold great potential for regenerative medicine, which are mostly used to promote the repair response of diseased, dysfunctional or injured tissue using stem cells or their derivatives. I think Stem Cell Research and Therapeutics International is a great platform to publish and share the understanding towards the biology and translational or clinical application of stem cells.

img

Dr Tong Ming Liu

I would like to give my testimony in the support I have got by the peer review process and to support the editorial office where they were of asset to support young author like me to be encouraged to publish their work in your respected journal and globalize and share knowledge across the globe. I really give my great gratitude to your journal and the peer review including the editorial office.

img

Husain Taha Radhi

I am delighted to publish our manuscript entitled "A Perspective on Cocaine Induced Stroke - Its Mechanisms and Management" in the Journal of Neuroscience and Neurological Surgery. The peer review process, support from the editorial office, and quality of the journal are excellent. The manuscripts published are of high quality and of excellent scientific value. I recommend this journal very much to colleagues.

img

S Munshi

Dr.Tania Muñoz, My experience as researcher and author of a review article in The Journal Clinical Cardiology and Interventions has been very enriching and stimulating. The editorial team is excellent, performs its work with absolute responsibility and delivery. They are proactive, dynamic and receptive to all proposals. Supporting at all times the vast universe of authors who choose them as an option for publication. The team of review specialists, members of the editorial board, are brilliant professionals, with remarkable performance in medical research and scientific methodology. Together they form a frontline team that consolidates the JCCI as a magnificent option for the publication and review of high-level medical articles and broad collective interest. I am honored to be able to share my review article and open to receive all your comments.

img

Tania Munoz

“The peer review process of JPMHC is quick and effective. Authors are benefited by good and professional reviewers with huge experience in the field of psychology and mental health. The support from the editorial office is very professional. People to contact to are friendly and happy to help and assist any query authors might have. Quality of the Journal is scientific and publishes ground-breaking research on mental health that is useful for other professionals in the field”.

img

George Varvatsoulias

Dear editorial department: On behalf of our team, I hereby certify the reliability and superiority of the International Journal of Clinical Case Reports and Reviews in the peer review process, editorial support, and journal quality. Firstly, the peer review process of the International Journal of Clinical Case Reports and Reviews is rigorous, fair, transparent, fast, and of high quality. The editorial department invites experts from relevant fields as anonymous reviewers to review all submitted manuscripts. These experts have rich academic backgrounds and experience, and can accurately evaluate the academic quality, originality, and suitability of manuscripts. The editorial department is committed to ensuring the rigor of the peer review process, while also making every effort to ensure a fast review cycle to meet the needs of authors and the academic community. Secondly, the editorial team of the International Journal of Clinical Case Reports and Reviews is composed of a group of senior scholars and professionals with rich experience and professional knowledge in related fields. The editorial department is committed to assisting authors in improving their manuscripts, ensuring their academic accuracy, clarity, and completeness. Editors actively collaborate with authors, providing useful suggestions and feedback to promote the improvement and development of the manuscript. We believe that the support of the editorial department is one of the key factors in ensuring the quality of the journal. Finally, the International Journal of Clinical Case Reports and Reviews is renowned for its high- quality articles and strict academic standards. The editorial department is committed to publishing innovative and academically valuable research results to promote the development and progress of related fields. The International Journal of Clinical Case Reports and Reviews is reasonably priced and ensures excellent service and quality ratio, allowing authors to obtain high-level academic publishing opportunities in an affordable manner. I hereby solemnly declare that the International Journal of Clinical Case Reports and Reviews has a high level of credibility and superiority in terms of peer review process, editorial support, reasonable fees, and journal quality. Sincerely, Rui Tao.

img

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.

img

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.

img

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.

img

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.

img

Maria Dolores Gomez Barriga