BLOOD FLOW INDEX IN LOWER EXTREMITIES OF HEALTHY VOLUNTEERS BY IMPEDANCE PLETHYSMOGRAPHY (IPG)
Journal Title: International Journal of Basic and Applied Physiology - Year 2015, Vol 4, Issue 1
Abstract
Background & Objectives: Impedance plethysmography (IPG) is the recording of instantaneous volume by measurement of electrical impedance. It is an indirect assessment of blood volume changes in any part of the body segment from changes in the electrical impedance of that segment. Our study was aimed to measure the blood flow index (BFI) of lower extremities in healthy Volunteers. Methods: The study was carried out in different segments of lower extremities (knee, calf and ankle) of healthy volunteers of different age groups of either sex by Nivomon series computerized software of L&T Company at cardiovascular laboratory in department of Physiology, Government Medical college, Bhavnagar, Gujarat. Results: Arterial parameters measured were Basal impedance (Z0) & Blood flow index (BFI) in knee, calf ankle regions and analyzed statistically. Interpretation & Conclusion: Z0 increases as the age increases and BFI remains more or less same throughout the age groups with higher BFI in proximal than in distal part of lower extremities. It is suggested that IPG may become an important clinical tool to study the central as well as peripheral blood flow. This simple, harmless, inexpensive, objective and non-invasive hemodynamic test may replace other invasive hemodynamic test for screening peripheral vascular diseases (PVDs) at any age provided that one has predetermined normative data
Authors and Affiliations
Yogesh Kacha, Anup Vegad, Maulik Varu, Hemant Mehta, Chinmay J Shah
Keywords
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