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Influence of Blood‐Taking Procedure on the Heart Function of Blood Donors
Author(s) -
Ibler M.,
Lage S.
Publication year - 1984
Publication title -
acta anaesthesiologica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.738
H-Index - 107
eISSN - 1399-6576
pISSN - 0001-5172
DOI - 10.1111/j.1399-6576.1984.tb02125.x
Subject(s) - medicine , blood volume , circulatory system , cardiology , blood pressure , anesthesia , heart rate
The systolic time intervals and heart rate were studied in 11 blood‐donors aged between 20 and 48 years by a non‐invasive technique before and after the usual blood‐taking procedure. No statistically significant difference was found between values determined before and after the procedure. A significant correlation (r = 0.76) was demonstrated between percent changes of pre‐ejection period/left ventricular ejection time (PEP/LVET)‐ratio and withdrawn volume of blood (450 ml) × time (min) ‐1 × bodyweight (kg) ‐1 . No correlation was found between percent changes of PEP/LVET‐ratio and withdrawn volume of blood × time ‐1 , nor between percent changes of PEP/LVET‐ratio and withdrawn volume of blood × percentage of circulatory volume removed ‐1 . It is suggested that the blood‐taking time (in minutes) should not be shorter than the quotient: donated volume of blood (ml) × bodyweight (kg) ‐1 if a negative influence of withdrawal procedure on left ventricular function is to be avoided. Mechanisms contributing to circulatory stability during reduction of blood volume are briefly discussed.