Changes of heart rate and blood pressure in registration of forced respiration flow-volume loop. |
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| Authors: | P H Kingisepp K Jagom?gi R Raamat |
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| Affiliation: | Department of Physiology, University of Tartu, Tartu, Estonia. |
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| Abstract: | Changes in heart rate (HR) and finger mean blood pressure (MBP) during registration of the flow-volume loop of forced respiration in healthy young subjects were studied. Breathing patterns of performing the flow-volume loop of forced respiration (forced respiratory manoeuvre, FRM) as well as the related responses of cardiovascular parameters in different subjects were found to vary to a large extent. FRM has a remarkable influence on the cardiovascular system: during FRM the peak values of MBP were 19 +/- 9 mmHg higher than baseline values and the peak values of HR were 30 +/- 11 beats min-1 higher. We conclude that it is essential to pay attention to a remarkable elevation of blood pressure in functional breathing tests in patients with high blood pressure. |
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