RESUMO
BACKGROUND: Rheumatic mitral stenosis (MS) is a significant cause of morbidity and mortality in India. Percutaneous transvenous mitral commissurotomy (PTMC) has become the procedure of choice for severe MS with pliable leaflets. Despite a wealth of literature on the technical aspects of PTMC, there is a dearth of literature addressing the impact of PTMC on the quality of life (QOL). AIM: The aim of the study is to assess the impact of PTMC on clinical status and QOL of patients with severe MS. MATERIALS AND METHODS: Twenty-five consecutive patients with severe MS undergoing PTMC were included in the study with their informed consent. All patients were subjected to routine blood tests, electrocardiogram, chest X-ray, two-dimensional and color echocardiography, treadmill test (TMT), and World Health Organization (WHO) QOL scale. The echocardiography, TMT, and WHOQOL scale were repeated after the procedure. RESULTS: The procedural success was 98%. The mean (range) mitral valve area preprocedure was 0.82 (0.59-0.92) cm2 and postprocedure was 1.61 (1.51-1.76) cm2. The difference was statistically significant (t = 5.02; P < 0.01). The mean (range) of TMT preprocedure was 4.05 (3.0-7.0) METS and postprocedure was 8.52 (6-12) METS. The difference was statistically significant (T = 3.08; P < 0.01). The mean (range) of QOL assessment pre- and post-procedure on physical domain was 8.83 (8.3-10.1) which increased to 11.11 (10-12.7); on social relationship domain from 9.17 (7.5-12.4) to 11.37 (9.4-12.0); on personal relationship from 11.6 (11-13) to 12.52 (12-13); on environment domain from 10.78 (10.2-11.7) to 11.56 (10.8-12); and on level of independence from 9.02 (8-10) to 12.29 (11.0-13.6). All the differences were statistically significant (Wilcoxon signed-rank test z = -4.376; -4.379; -4.234; -4.200; -4.375; respectively, all P < 0.001 highly significant). CONCLUSIONS: PTMC resulted in a significant improvement in the QOL of patients with severe MS. The significant improvement in QOL post-PTMC may be an indication for offering PTMC at an earlier stage to those patients whose QOL is severely compromised.
RESUMO
BACKGROUND: There is limited data regarding the demographics and type of cardiac implantable electronic device (CIED) in India. AIM: The aim of this survey was to define trends in CIED implants, which included permanent pacemakers (PM), intracardiac defibrillators (ICD), and cardiac resynchronization therapy pacemakers and defibrillators (CRT-P/D) devices in India. METHODS: The survey was the initiative of the Indian Society of Electrocardiology and the Indian Heart Rhythm Society. The type of CIED used, their indications, demographic characteristics, clinical status and co-morbidities were collected using a survey form over a period of 1 year. RESULTS: 2117 forms were analysed from 136 centers. PM for bradyarrhythmic indication constituted 80% of the devices implanted with ICD's and CRT-P/D forming approximately 10% each. The most common indication for PM implantation was complete atrio-ventricular block (76%). Single chamber (VVI) pacemakers formed 54% of implants, majority in males (64%). The indication for ICD implantation was almost equal for primary and secondary prevention. A single chamber ICD was most commonly implanted (65%). Coronary artery disease was the etiology in 58.5% of patients with ICD implants. CRT pacemakers were implanted mostly in patients with NYHA III/IV (82%), left ventricular ejection fraction <0.35 (88%) with CRT-P being most commonly used (57%). CONCLUSION: A large proportion of CIED implants in India are PM for bradyarrhythmic indications, predominantly AV block. ICD's are implanted almost equally for primary and secondary prophylaxis. Most CRT devices are implanted for NYHA Class III. There is a male predominance for implantation of CIED.
