A Mbaye1, B Dodo2, A A Ngaïde3, N F Sy3, K Babaka3, J S Mingou2, M Faye4, K Niang5, S A Sarr2, M Dioum6, M Bodian2, M B Ndiaye2, A D Kane2, M Ndour-Mbaye7, M Diao2, B Diack3, M Kane3, D Diagne-Sow3, I Thiaw8, A Kane3. 1. Service de cardiologie, hôpital général de Grand-Yoff, BP 3270, Dakar, Sénégal. Electronic address: ambaye8@hotmail.com. 2. Service de cardiologie, hôpital Aristide-Le-Dantecc, BP 6003, Dakar-Étoile, Sénégal. 3. Service de cardiologie, hôpital général de Grand-Yoff, BP 3270, Dakar, Sénégal. 4. Service de néphrologie, hôpital Aristide-Le-Dantec, BP 6003, Dakar-étoile, Sénégal. 5. Institut de santé publique, université Cheikh-Anta-Diop, BP 16390, Dakar-Fann, Sénégal. 6. Service de cardiologie, hôpital de Fann, BP 3053, Dakar-Fann, Sénégal. 7. Service de médecine interne, hôpital Abass-Ndao, BP 5866, Dakar-Fann, Sénégal. 8. Centre de Santé de Guéoul, Guéoul Escale, 30900 Kébémer, Sénégal.
Abstract
OBJECTIVES: To assess the prevalence of left ventricular hypertrophy according to electrocardiographic and echocardiographic criteria among hypertensive patients living in semi-rural Senegalese area. PATIENTS AND METHODS: According to the World Health Organization STEPSwise approach, we conducted, in November 2012, a cross-sectional and exhaustive study in the population aged at least 35 years old and living for at least six months in the semi-rural area of Guéoul. We researched electrocardiographic and echocardiographic left ventricular hypertrophy in hypertensive subjects. Data were analyzed with SPSS 18.0 software version. The significance level was agreed for a value of P<0.05. RESULTS: We examined 1411 subjects aged on average of 48.5±12.7 years. In total, 654 subjects were hypertensive and screening of left ventricular hypertrophy (LVH) was effective in 515 of them. According to Sokolow-Lyon index, 86 subjects (16.7%) presented electrocardiographic LVH, more frequently in men (P=0.002). According to Cornell index and Cornell product, LVH was founded respectively in 66 (12.8%) and 52 subjects (10.1%), more frequently in female (P=0.0001; P=0.004). It was more common in grade 3 of hypertension however criteria. In echocardiography, prevalence of LVH was 2.2% (13 cases) according to the left ventricular mass, 9.3% (48 cases) according to the left ventricular mass indexed to body surface area and 8.2% (42 cases) according to the left ventricular mass indexed to height2.7. LVH was significantly correlated with the electrocardiographic LVH according to Sokolow-Lyon index (P<0.0001) and the grade 3 of hypertension (P=0.003). CONCLUSION: Although rare in hypertensive Senegalese living in semi-rural area, left ventricular hypertrophy is correlated with severity of grade of hypertension. Screening by electrocardiogram will allow better follow-up of these hypertensive subjects.
OBJECTIVES: To assess the prevalence of left ventricular hypertrophy according to electrocardiographic and echocardiographic criteria among hypertensivepatients living in semi-rural Senegalese area. PATIENTS AND METHODS: According to the World Health Organization STEPSwise approach, we conducted, in November 2012, a cross-sectional and exhaustive study in the population aged at least 35 years old and living for at least six months in the semi-rural area of Guéoul. We researched electrocardiographic and echocardiographic left ventricular hypertrophy in hypertensive subjects. Data were analyzed with SPSS 18.0 software version. The significance level was agreed for a value of P<0.05. RESULTS: We examined 1411 subjects aged on average of 48.5±12.7 years. In total, 654 subjects were hypertensive and screening of left ventricular hypertrophy (LVH) was effective in 515 of them. According to Sokolow-Lyon index, 86 subjects (16.7%) presented electrocardiographic LVH, more frequently in men (P=0.002). According to Cornell index and Cornell product, LVH was founded respectively in 66 (12.8%) and 52 subjects (10.1%), more frequently in female (P=0.0001; P=0.004). It was more common in grade 3 of hypertension however criteria. In echocardiography, prevalence of LVH was 2.2% (13 cases) according to the left ventricular mass, 9.3% (48 cases) according to the left ventricular mass indexed to body surface area and 8.2% (42 cases) according to the left ventricular mass indexed to height2.7. LVH was significantly correlated with the electrocardiographic LVH according to Sokolow-Lyon index (P<0.0001) and the grade 3 of hypertension (P=0.003). CONCLUSION: Although rare in hypertensive Senegalese living in semi-rural area, left ventricular hypertrophy is correlated with severity of grade of hypertension. Screening by electrocardiogram will allow better follow-up of these hypertensive subjects.