Eficácia da kinesio taping® na oxigenação tecidual em mulheres com insuficiência venosa crônica – um ensaio clínico aleatorizado

Abstract

Chronic venous insufficiency (CVI) is an abnormality of venous system function with progressive loss of tissue perfusion. The Kinesio Taping® (KT) application technique has been considered as a new treatment option for CVI, being a possible alternative for changes in tissue responses. The primary objective of this analysis was to analyze the acute and chronic effects of KT use on tissue perfusion in women with CVI. To run this this objective, two studies were performed. Acute effect study 01 through a doubleblind, randomized controlled trial, with a sample of 59 women who had a diagnosis of moderate-level CVI, randomized to a KT group control (KT placebo) intervention group. Near Infrared Spectroscopy (NIRS) was placed on the medial gastrocnemius muscle for assessment of resting tissue perfusion 48h after the first day of evaluation and after the KT tape application. An evaluation also consisted of performing plethysmographic examination movements: lower limb height up to 15cm for five minutes, orthostatism without leg support evaluated, a plantar flexion and followed by ten successive plantar flexions, in bipodal support. To check how comparisons of pre and post KT data were used or delta variation for analysis. For comparisons between the intervention and control groups, the Mann Whitney-U test was performed. Study 2 on chronic effect using a randomized, double-blind, non-probabilistic clinical trial stratified into groups according to an IVC clinical clinic and randomly divided into the intervention group with KT control group (KT placebo). Fifty-five women aged 30 to 79 years with a diagnosis of CVI were included in the study. Tests were performed at baseline and after twelve treatment sessions (four weeks). An evaluation was performed with demographic data collection, tissue perfusion evaluation with NIRS during constant speed walking test, transport incremental walking test, heel elevation test and plethysmography movement protocol, in random order. Additionally, data on functional capacity, calf muscle pump function and pain were applied. As variables were analyzed using the delta of the variables and compared using the Mann Whitney-U test. Study results 01: Regarding the acute effect of KT in women with CVI it can be observed that there was no statistically significant difference in tissue perfusion between the groups. Despite the absence of statistical significance, the KT group had a 785.7% lower venous retention than the control group. Results study 02: The chronic effect of KT use in women with CVI did not promote significant change in tissue perfusion or demographic and clinical variables, and a statistically significant difference was observed in the variable IRVA_TE. Conclusion: The acute use of KT in women with CVI was not able to significantly alter the tissue perfusion of the calf muscles. However, it was possible to observe important percentage changes to be considered from the clinical point of view. Chronic use of KT in 12-session women with CVI has not been able to modify peripheral tissue perfusion of calf muscles, functional capacity, calf muscle pump function, and pain in women with mildly severe CVI. There was a less pronounced worsening behavior of outpatient venous retention during treadmill exercise in the KT group, which needs to be further investigated.