Arup Dasbiswas1, Tushar Tamboli2, Shahu Ingole3, Swati Naik4, Rishi Jain5
BACKGROUND
Calcium channel blockers (CCB) like amlodipine, S (-) amlodipine and cilnidipine, etc. have established place in the treatment of hypertension (HTN). As perceived by most of the physicians, they have comparative antihypertensive efficacy. However, available evidences suggest varied differences in incidence of pedal oedema.
Aim- This survey was planned to understand real-world clinical practice pattern of Indian physicians for usage of various antihypertensive agents with emphasis on CCBs and whether differential incidence of oedema with CCBs is encountered in their clinical practice.
MATERIALS AND METHODS
Survey questionnaire consisting of 10 questions about preferred antihypertensive choice for different subsets of patients with HTN and efficacy and safety of S (-) amlodipine was prepared and validated in small group of physicians. Overall, 494 general physicians and cardiologists practising in India were approached for seeking their opinion on usage of various CCBs.
Statistical Analysis- Data were expressed in percentage.
Design- Prospective, cross sectional, questionnaire-based survey.
RESULTS
Amongst various anti-hypertensive agents, majority of the physicians preferred CCB as their initial drug of choice for patients with HTN (53.8%), HTN with CKD (41.1%), elderly (55.3%), and young (30.8%) patients. Though amlodipine was preferred by 75.7% physicians, pedal oedema was observed in >10% patients by 40.5% physicians. Most of the physicians rated S (-) amlodipine to have better efficacy (79.4%) and safety profile (88.3%) with decreased incidence of pedal oedema than racemic Amlodipine.
CONCLUSION
Available evidences suggest comparative efficacy of S (-) amlodipine and racemic amlodipine with varied differences in incidence of pedal oedema. However, our survey suggests better efficacy and safety of S (-) amlodipine over racemic amlodipine as opined by most of the physicians of India. The survey findings need to be further evaluated in randomised clinical trials.
