Prognostic factors of cardiovascular complications during the heatwave of 2010 (cohort observational study)

Abstract

Aim of the study was to identify prognostic factors of hypertensive crisis during the heatwave of 2010. Materials and methods: observational cohort study involving 754 patients with moderate/low, high/very high risk and patients with CAD. Medical documentation and questionnaires was used. Selectively (344 pers.) were done sphygmography Visits were conducted in april - may and september - october 2010. Results: The frequency of cardiovascular complications increased during heat waves than in the september - october 2010. There were more hypertensive crises, unscheduled visits to the doctor and arrhythmia during the heat wave than after the heat. CAD [OR 1.8 (1.1-2.8)], a history of stroke [OR 3,4 (1.0-11.4)], intake of nitrates [OR 3.1 (1.1-9.1)] and discontinuation of antihypertensive medications [OR 2.7 (1.4-5.1)] proved to be predictors of hypertensive crisis during heat wave. Independent predictors had a history of stroke [OR 5.3 (1.1-25.1)] and the discontinuation of antihypertensive medications [OR 2.5 (1.2-4.9)]. Conclusion: CAD, intake of nitrates, history of stroke and discontinuation of antihypertensive medications proved to be predictors of hypertensive crisis during heat wave. Independent predictors had a history of stroke and the discontinuation of antihypertensive medications.