Clinical cardiology · 2012
Enhanced external counterpulsation has no lasting effect on ambulatory blood pressure.
Сравнительное исследованиеСтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод пока не подготовлен
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May Ole, Khair Wael Abdulla Mohammed
Аннотация
BACKGROUND: Enhanced external counterpulsation (EECP) has been reported to reduce blood pressure (BP) using clinic BP readings. The aim of this study was to assess the effect of a course of EECP on BP using ambulatory BP (ABP) measurements.
HYPOTHESIS: EECP has a lasting BP lowering effect.
METHODS: Patients referred for EECP due to refractory angina pectoris were consecutively included in the study. The ABPs were measured for 24 hours using a Spacelabs Ultralite 90217 device at 5 time points during the study period: 2 months before the EECP course, just before the EECP course, just after the EECP course, and at 3 and 12 months after EECP. Antihypertensive medication was held constant during the study period. Changes in BP were tested by repeated measures analysis.
RESULTS: Fifty patients were included in the study. The mean age was 63 years, and 72% were male. The Canadian Cardiovascular Society Angina Grading Scale class improved from a mean of 2.6 to 1.5. The mean daytime ABPs were 114/69, 114/70, 115/71, 114/70, and 116/71 mm Hg and the mean nighttime ABPs were 107/63, 108/63, 106/62, 108/63, and 107/62 mm Hg at 2 months before the EECP course, just before the EECP course, just after the EECP course, and at 3 and 12 months after EECP, respectively (all P > 0.10). Further, when controlling for quartiles of baseline ABP level, no significant change in ABP was found.
CONCLUSIONS: Enhanced external counterpulsation treatment has no lasting effect on ABP.
HYPOTHESIS: EECP has a lasting BP lowering effect.
METHODS: Patients referred for EECP due to refractory angina pectoris were consecutively included in the study. The ABPs were measured for 24 hours using a Spacelabs Ultralite 90217 device at 5 time points during the study period: 2 months before the EECP course, just before the EECP course, just after the EECP course, and at 3 and 12 months after EECP. Antihypertensive medication was held constant during the study period. Changes in BP were tested by repeated measures analysis.
RESULTS: Fifty patients were included in the study. The mean age was 63 years, and 72% were male. The Canadian Cardiovascular Society Angina Grading Scale class improved from a mean of 2.6 to 1.5. The mean daytime ABPs were 114/69, 114/70, 115/71, 114/70, and 116/71 mm Hg and the mean nighttime ABPs were 107/63, 108/63, 106/62, 108/63, and 107/62 mm Hg at 2 months before the EECP course, just before the EECP course, just after the EECP course, and at 3 and 12 months after EECP, respectively (all P > 0.10). Further, when controlling for quartiles of baseline ABP level, no significant change in ABP was found.
CONCLUSIONS: Enhanced external counterpulsation treatment has no lasting effect on ABP.