Mathews Journal of Cardiology最新文献

{"title":"J Receptor Reflexes Terminate Exercise to Reduce Pulmonary Inflow","authors":"A. Anand","doi":"10.30654/mjc.10026","DOIUrl":"https://doi.org/10.30654/mjc.10026","url":null,"abstract":"A great increase in ventilation and cardiac output is set off by and even before rapid locomotion begins. An investigation into the neural mechanisms involved revealed that the subsequent increase in pulmonary blood flow stimulates J or juxtapulmonary capillary receptors that lie in the pulmonary parenchyma. Reflexes arising from stimulation of these sensory receptors are an increase in ventilation accompanied by sensations of breathlessness, bradycardia and reduction or stopping of exercise. Of these, the significance of reflex bradycardia is to reduce the great rise in pulmonary capillary pressure during strenuous exercise and protect the pulmonary arterioles from rupture as they are vulnerable to mechanical stress.","PeriodicalId":300618,"journal":{"name":"Mathews Journal of Cardiology","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123492937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effusive Non-Tuberculosis Mycobacterial and Fungal Acute Pericarditis in Post COVID Patient: A Case Report","authors":"O. Amini, Azade Sezavar Seiedi, A. Mohamad, Somaye Farokhnejad","doi":"10.30654/mjc.10027","DOIUrl":"https://doi.org/10.30654/mjc.10027","url":null,"abstract":"Copyright: Farokhnejad S, et al. © (2023). This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Somaye Farokhnejad, MD Cardiovascular Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran. Phone: +989122124921 E-mail: somayefarokhnejad@gmail.com ABSTRACT","PeriodicalId":300618,"journal":{"name":"Mathews Journal of Cardiology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130476548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Late Endocarditis on Aortic Prosthesis Complicated by an Infectious Aneurysm of the Right Sinus Ruptured in the Right Atrium: A Case Report","authors":"Redha Lakehal, S. Bendjaballah, K. Khacha, Jalaleddinne Omar Bouhidel, Abdelmalek, Bouzid","doi":"10.30654/mjc.10025","DOIUrl":"https://doi.org/10.30654/mjc.10025","url":null,"abstract":"Introduction: Endocarditis on aortic prosthesis that we all fear as patients with heart valve prosthesis, is a rare disease less than 1% of cases. However, its evolution is very unfavorable when it occurs. The appearance of a fever, often insidious, is a sure sign of the disease. Diagnosis is based on blood cultures and echocardiography. This clinical case is an opportunity for us to recall the seriousness of this condition both for patients and for cardiac surgeons. Methods: We report the case of an adult aged 51 with two mechanical mitro-aortic prostheses implanted in 2001 presenting endocarditis on aortic prosthesis complicated by aortic leak, atrioventricular block (AVB) and stroke leaving as a sequela a hemiplegia with infectious aneurysm of the right sinus ruptured in the right atrium (RA) in cardiac decompensation with persistent fever and orthopnea despite well-conducted triple anti-staphylococcal antibiotic therapy with clinical examination: aortic systolic murmur with crackling rales. Chest X-ray: cardiomegaly, flaky opacities, transthoracic echocardiography: large aneurysm on the right coronary side fistulized in the right atrium (RA), desinsertion of the aortic prosthesis with grade IV paraprosthetic aortic leak, left ventricular (LV): 52/32 mm, an undilated right ventricular (RV), an ejection fraction (EF) at 64 %, and finally a systolic arterial pulmonary pressure (SAPP) at 68 mmHg. Positive blood cultures: staphylococcus. Intraoperative exploration: voluminous vegetation next to the exit orifice of the aorta-right atrium fistula, desinsertion of the aortic prosthesis on the peri-annular abscess and vegetation on the aortic wings, destruction of the mitro-aortic junction with the presence of a fistula aorta-right atrium. He benefited from explantation of the aortic prosthesis, vegetation sent to bacteriology, reconstitution of the aortic annulus on the right coronary-left coronary (RC-LC) side by a Dacron® patch, closure of the entry orifice of the fistula on the aortic side by separate points and reconstruction of the mitro-aortic junction with a triangular Dacron® patch, implantation of an aortic prosthesis *Corresponding Author Late Endocarditis on Aortic Prosthesis Complicated by an Infectious Aneurysm of the Right Sinus Ruptured in the Right Atrium: A Case Report","PeriodicalId":300618,"journal":{"name":"Mathews Journal of Cardiology","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115307701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Stereotactic Body Radiotherapy for Noninvasive Arrhythmia Treatment","authors":"Li-li Yang, Min Li, S. Liu, Lili Chen, C. Charlie Ma","doi":"10.30654/mjc.10024","DOIUrl":"https://doi.org/10.30654/mjc.10024","url":null,"abstract":"Atrial fibrillation (AF) is the most common cardiac arrhythmia clinically and a major risk factor for cardiogenic stroke, especially in the elderly, and also one of the factors leading to heart dysfunction. Conventional treatment methods for restoring sinus rhythm include synchronous electrical cardioversion, pharmacological cardioversion and radiofrequency ablation, which are effective but still limited due to treatment failures to control sinus rhythm and the side effects of long-term medication and the invasiveness of radiofrequency ablation. Ventricular tachycardia (VT) is a malignant arrhythmia, which is the most common cause of sudden cardiac death (SCD). Antiarrhythmic medications and endocardial catheter ablation remain as guidelines-supported VT treatment strategies for patients with structural cardiac abnormalities. Recent clinical results showed that more than half of patients had recurrent VT after catheter ablation, and for patients with intracardiac thrombosis, deep ablation sites, or mechanical valve replacement, catheter ablation is often not completed. The invasive and potential complications of radiofrequency ablation make it unattractive for patients with multiple complications or hemodynamic impairments. body radiotherapy technique and its clinical potential for the noninvasive ablative treatment of AF and VT together with its important implications for future beneficial clinical applications. In vivo experimental studies that provided useful preclinical data are reviewed and the results of pioneering clinical trials will be discussed together with the dosimetric considerations and pros and cons of the treatment approach.","PeriodicalId":300618,"journal":{"name":"Mathews Journal of Cardiology","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126535740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fibrillation and Flutter of the Heart, Pathological Aspects of the Mechanism","authors":"Khabchabov Rg, Makhmudova Er","doi":"10.30654/mjc.10023","DOIUrl":"https://doi.org/10.30654/mjc.10023","url":null,"abstract":"The article is scientific, theoretical and debatable, based on a deep analysis of the electrical activity of the heart and electrocardiogram data. Paroxysmal arrhythmia applies; paroxysmal tachycardia, flutter and fibrillation of the heart. The combination of these arrhythmias with structural changes in the heart should cause damage to the antioxidant barrier of source of generation. The article has a lot of pictures that should visually show you the cause and mechanism of the development of paroxysmal arrhythmias. But do not forget that the article and theoretical, written only for scientists.","PeriodicalId":300618,"journal":{"name":"Mathews Journal of Cardiology","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124970268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Myocardial Infarction in Covid-19 Era: A Dramatic Dip into the Past?","authors":"V. Simone, A. Mugnolo, A. Zamboni, G. Morando","doi":"10.30654/MJC.10022","DOIUrl":"https://doi.org/10.30654/MJC.10022","url":null,"abstract":"","PeriodicalId":300618,"journal":{"name":"Mathews Journal of Cardiology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114777488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multimodality Evaluation of Multiple Mitral Valve Myxomas: A Rare, Benign but Potentially Life-Threatening Tumor","authors":"Yutian Sun, Hong-Wei Gao, Boqi Hu","doi":"10.30654/mjc.10021","DOIUrl":"https://doi.org/10.30654/mjc.10021","url":null,"abstract":"Primary cardiac myxomas occur frequently in the left atrium, but they can be found in any cardiac chamber. Most tumors are solitary, and multiple intracardiac myxomas account for less than 5% of all cases of myxoma. Moreover, valvular myxomas are exceedingly rarer. Therefore, we report unusual myxomas with an unique anatomical location, which emphasizes the value of multiple imaging investigations in the diagnostic workups and subsequent management.","PeriodicalId":300618,"journal":{"name":"Mathews Journal of Cardiology","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130644000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Test the Vasospastic ST-Segment Depression Reversibility with Nitrates in Non-Obstructive Coronary Disease","authors":"Y. Elsayed","doi":"10.30654/mjc.10020","DOIUrl":"https://doi.org/10.30654/mjc.10020","url":null,"abstract":"Coronary artery spasm is an important common clinical cardiovascular disorder. It is defined as a transient constriction of the muscles in the wall of one or more of the coronary arteries. Myocardial injury and sudden cardiac death are possible remarkable sequels. Despite coronary spasm is a brief and temporary but can be permanent. In other words, it may be associated with or without significant coronary artery disease. However, Coronary spasm is hyperresponsive to the vasodilator effect of nitrates. Patients with different forms of coronary artery disease may respond differently. The quick reversibility response of ST-segment depression after using short-acting nitrates had achieved in my 3-case series. ST-segment depression reversibility with nitrates means that the ST-segment depressions for all cases were transient coronary vasospasm. However, coronary angiography was normal in all 3-cases. This is the principal of our test. Worthwhile, the objective of the test in the current article is to distinguish between the real coronary artery spasm with obstructive coronary artery disease from those with nonobstruction. The emergency differentiation for the cases of coronary artery spasm using nitrates via categorical stratification into obstructive and nonobstructive coronary artery disease is a pivotal step in future management. The test may reduce the need for coronary angiography and its economic impact on the patient.","PeriodicalId":300618,"journal":{"name":"Mathews Journal of Cardiology","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133333319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}