ABSTRACT
Objective: The region South Asia is in the south-central part of the Asian continent. The 8 countries of the area, Afghanistan, Bangladesh, Bhutan, India, Nepal, The Maldives, Pakistan, and Sri Lanka collectively possess 1.8 billion people living in 5.1 million square miles. Covering 2.96% of World's surface, this area is inhabited by 23.9% of the world population. The objective of this study was to observe the number of cardiac operations in South Asia and the human resource development facilities of cardiac surgery in the region. Methods: Information was collected from the surgeons and anesthetists through personal visits, phone calls, and emails. The websites of various organizations were also checked. Results: The estimated number of cardiac operations collectively performed in the South Asian countries was between 250,000 and 300,000 as of 2019. With more than 6 times the US population, these nations combined performed less than half of the annual number of cardiac operations performed in the United States. The number of operations per million population ranged from 62 to 271 in different countries. This indicates that there should be more capacity-building of surgeons to meet the growing demand of operations. India, Pakistan, Bangladesh, Sri Lanka, and Nepal have their own education and training systems for cardiovascular surgeons. A substantial portion of the seats available for cardiovascular surgery courses remained vacant in South Asia these days. Conclusions: Five countries have their various surgical education and training programs. There should be coordinated efforts to increase the production of new cardiac surgeons in the region.
ABSTRACT
BACKGROUND: Primary cardiac tumors are quite rare and mostly benign in nature. Most of the benign heart tumors are myxomas. These might present with a wide range of symptoms from being completely asymptomatic to having life-threatening complications like stroke, heart failure, or even sudden death. This study summarizes our 6-year clinical experience with surgical resection of cardiac tumors at Chittagong Medical College and Hospital, Chattogram, Bangladesh. METHODS: Twenty patients who underwent surgical excision of primary intracardiac myxoma between February 2014 and February 2020 were included in the study. Seventeen (85%) of them were female and 3 (15%) were male. Mean age was 43.4 ± 14.1 years. The tumors were located in the left atrium in 19 patients and in 1 patient it was in the right atrium. The most common attachment site was the interatrial septum. Most of the patients presented with dyspnea. Preoperative diagnosis was established using transthoracic echocardiography with colour Doppler. Surgery for all patients was via median sternotomy. RESULTS: All 20 patients survived the surgery. Mean tumor dimension was 4.6 ± 3.5 cm in the longest diameter. Solid tumors were detected in 13 patients (65%) whereas papillary myxomas were found in 7 patients (35%). On follow-up of these 20 patients, there was no perioperative death. One patient presented with recurrence 28 months after the surgery. CONCLUSIONS: Although cardiac myxomas carry the risk of serious systemic and cardiac symptoms, prompt surgical excision gives excellent outcome.
INTRODUCTION: Les tumeurs cardiaques primitives sont assez rares et pour la plupart bénignes par nature. La plupart des tumeurs cardiaques bénignes sont des myxomes, qui pourraient se manifester sous diverses formes allant de l'absence complète de symptômes à des complications mettant la vie en danger telles que les accidents vasculaires cérébraux, l'insuffisance cardiaque, voire la mort subite. La présente étude résume les six années d'expérience clinique en résection chirurgicale de tumeurs cardiaques au Chittagong Medical College and Hospital, Chattogram, Bangladesh. MÉTHODES: Vingt patients qui avaient subi une excision chirurgicale d'un myxome intracardiaque primitif entre février 2014 et février 2020 ont fait partie de l'étude. Dix-sept (85 %) étaient des femmes, et trois (15 %), des hommes. L'âge moyen était de 43,4 ± 14,1 ans. Dix-neuf patients avaient une tumeur située dans l'atrium gauche, et un patient avait une tumeur située dans l'atrium droit. Le site de fixation le plus fréquent était le septum interauriculaire. La plupart des patients accusaient une dyspnée. Le diagnostic préopératoire était établi par échocardiographie Doppler couleur transthoracique. Tous les patients opérés ont subi une sternotomie médiane. RÉSULTATS: Les 20 patients ont survécu à l'intervention chirurgicale. La dimension moyenne de la tumeur était de 4,6 ± 3,5 cm dans le plus grand diamètre. Treize (65 %) patients avaient des tumeurs solides, et sept (35 %) patients, des myxomes papillaires. Aucun décès périopératoire n'a été observé durant le suivi de ces 20 patients. Un patient a eu une récidive 28 mois après l'intervention chirurgicale. CONCLUSIONS: Bien que les myxomes cardiaques comportent un risque de symptômes systémiques et cardiaques sérieux, l'excision chirurgicale rapide apporte d'excellents résultats.
ABSTRACT
Inorganic arsenic (iAs) exposure has been reported to have an impact on cardiovascular diseases (CVD). However, there is not much known about the cardiac tissue injury of CVD patients in relation to iAs exposure and potential role of single nucleotide polymorphisms (SNPs) of genes related to iAs metabolism, oxidative stress, endothelial dysfunction and inflammation which may play important roles in such CVD cases. In this dual center cross-sectional study, based on the exclusion and inclusion criteria, we have recruited 50 patients out of 270, who came from known arsenic-affected and- unaffected areas of mainly Chittagong, Dhaka and Rajshahi divisions of Bangladesh and underwent open-heart surgery at the selected centers during July 2017 to June 2018. We found that the patients from arsenic affected areas contained significantly higher average iAs concentrations in their urine (6.72 ± 0.54 ppb, P = 0.028), nail (529.29 ± 38.76 ppb, P < 0.05) and cardiac tissue (4.83 ± 0.50 ppb, P < 0.05) samples. Patients' age, sex, BMI, hypertension and diabetes status adjusted analysis showed that patients from arsenic-affected areas had significantly higher iAs concentration in cardiac tissue (2.854, 95%CI 1.017-8.012, P = 0.046) reflecting higher cardiac tissue injury among them (1.831, 95%CI 1.032-3.249, P = 0.039), which in turn allowed the analysis to assume that the iAs exposure have played a vital role in patients' disease condition. Adjusted analysis showed significant association between urinary iAs concentration with AA (P = 0.012) and AG (P = 0.034) genotypes and cardiac iAs concentration with AA (P = 0.017) genotype of AS3MT rs10748835. The AG genotype of AS3MT rs10748835 (13.333 95%CI 1.280-138.845, P = 0.013), AA genotype of NOS3 rs3918181 (25.333 95%CI 2.065-310.757, P = 0.002), GG genotype of ICAM1 rs281432 (12.000 95%CI 1.325-108.674, P = 0.010) and AA genotype of SOD2 rs2758331 (13.333 95%CI 1.280-138.845, P = 0.013) were found significantly associated with CVD patients from arsenic-affected areas. Again, adjusted analysis showed significant association of AA genotype of AS3MT rs10748835 with CVD patients from arsenic affected areas. In comparison to the reference genotypes of the selected SNPs, AA of AS3MT 10748835, AG of NOS3 rs3918181 and AC of rs3918188, GG of ICAM1 rs281432, TT of VCAM1 rs3176867, AA of SOD2 rs2758331 and GT of APOE rs405509 significantly increased odds of cardiac tissue injury of CVD patients from arsenic affected areas. The results showed that the selected SNPs played a susceptibility role towards cardiac tissue iAs concentration and injury among CVD patients from iAs affected areas.
