The Effect of Isometric Exercise on the Heart in Mitral and Aortic Regurge as Assessed by Colour Doppler Flow Imaging
Ashraf Shafik Makkar .;
Abstract
Isometric exercise is defined as the fonn of exercise that generates force with little muscle shortening and produces a greater pressor response than that with dynamic exercise.
Isometric exercise produces well-defined hemodynamic changes in nonnal and diseased states. The effect of isometric exercise on the degree of valvular regurgitation recorded by CDFI had not been reported, before.
This work aimed at evaluation of the effect of isometric exercise on the degree of mitral and aortic regurgitation as detected by CDFI.
CDFI was therefore used to evaluate changes in valvular regurgitation in 60 patients: 30 patients with isolated mitral regurgitation with a mean age of 18.5±7.3 years and 30 patients with isolated aortic regurgitation with a mean age of 23.2±12.5 years. All these patients were in sinus rhythm, compensated state and had no other valvular lesions.
The 60 patients were subjected to CDFI examinations which were perfonned in parasternal long-axis and apical long-axis views. The optimal view for further study has been chosen as the plane that most clearly displayed the largest defmable jet.
The stress of isometric exercise has been imposed using sustained handgrip of calibrated dynamometer at one third of maximal achievable force for a minimum of one minute. Before and after this, CDFI was used to measure the base
line regurgitant jet area and reassess the regurgitant jet area
Isometric exercise produces well-defined hemodynamic changes in nonnal and diseased states. The effect of isometric exercise on the degree of valvular regurgitation recorded by CDFI had not been reported, before.
This work aimed at evaluation of the effect of isometric exercise on the degree of mitral and aortic regurgitation as detected by CDFI.
CDFI was therefore used to evaluate changes in valvular regurgitation in 60 patients: 30 patients with isolated mitral regurgitation with a mean age of 18.5±7.3 years and 30 patients with isolated aortic regurgitation with a mean age of 23.2±12.5 years. All these patients were in sinus rhythm, compensated state and had no other valvular lesions.
The 60 patients were subjected to CDFI examinations which were perfonned in parasternal long-axis and apical long-axis views. The optimal view for further study has been chosen as the plane that most clearly displayed the largest defmable jet.
The stress of isometric exercise has been imposed using sustained handgrip of calibrated dynamometer at one third of maximal achievable force for a minimum of one minute. Before and after this, CDFI was used to measure the base
line regurgitant jet area and reassess the regurgitant jet area
Other data
| Title | The Effect of Isometric Exercise on the Heart in Mitral and Aortic Regurge as Assessed by Colour Doppler Flow Imaging | Other Titles | أثر المجهود عديم المسافة على القلب فى حالات ارتجاع الصمام الميترالى وارتجاع الصمام الاورطى قياسا بالدوبلر الملون | Authors | Ashraf Shafik Makkar . | Issue Date | 2000 |
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