From: Doug Skrecky (oberon@vcn.bc.ca)
Date: Fri Jul 24 1998 - 23:22:46 MDT
Citations: 1-5
<1>
Authors
Lawson WE. Hui JC. Zheng ZS. Burgen L. Jiang L. Lillis O. Oster Z.
Soroff H. Cohn P.
Institution
Department of Medicine, SUNY Health Sciences Center, Stony Brook 11794-8171,
USA.
Title
Improved exercise tolerance following enhanced external
counterpulsation: cardiac or peripheral effect?.
Source
Cardiology. 87(4):271-5, 1996 Jul-Aug.
Abstract
The effect of treatment with enhanced external
counterpulsation (EECP) on exercise hemodynamics and
myocardial stress perfusion in 27 patients with chronic stable angina was
studied. A majority (22/27 or 81%) of patients improved their exercise
tolerance after EECP treatment, and a similar percentage (21/27 or 78%) of
patients improved their radionuclide stress perfusion images. Post-EECP
maximal exercise heart rate and blood pressure, while demonstrating a linear
relation with exercise duration, did not increase significantly despite the
increased exercise duration. This suggests that the increase in exercise
duration after treatment with EECP is due to both improved myocardial
perfusion and altered exercise hemodynamics. EECP therapy thus appears to
exert a "training' effect, decreasing peripheral vascular resistance and the
heart rate response to exercise. Coronary disease patients may improve their
exercise tolerance after EECP because of both improved myocardial perfusion
and a decrease in cardiac work load.
<2>
Authors
Kasliwal RR. Mittal S. Kanojia A. Bhatia ML. Kronzon I. Trehan N.
Institution
Escorts Heart Institute, Okhla Road, New Delhi.
Title
Sequential external counterpulsation: an adjunctive therapy
for patients with chronic coronary artery disease and left ventricular
dysfunction.
Source
Indian Heart Journal. 48(2):150-4, 1996 Mar-Apr.
Abstract
We assessed the clinical and haemodynamic improvement with 3 weeks of
sequential external counterpulsation (SECP) therapy in 23
patients with chronic coronary artery disease (CAD) and left ventricular (LV)
dysfunction who were refractory to maximal tolerated doses of medical therapy
and in whom intervention or surgery was not contemplated. All patients were
subjected to one-hour duration of SECP for 3 weeks. SECP is a new noninvasive
tool which increases coronary artery filling utilizing external pressure in a
sequential manner from calf to thigh. A detailed clinical and
echocardiographic evaluation was done before and after the completion of
therapy to assess the utility of SECP. There were 18 males and 5 females with
a mean age of 53 years. On coronary angiography, 39 percent patients had
single, 8.7 percent had double and 48 percent had triple vessel disease. Four
patients had coronary artery bypass graft (CABG) surgery in the past. Out of
all patients, 48 percent had diffuse or distal coronary artery disease which
was considered not suitable for CABG, 22 percent were not willing for
intervention and 30 percent had other systemic diseases making them unfit for
surgery. After 3 weeks of SECP, the anginal frequency reduced from 9
episodes/week to 1 episode/week. Before SECP, 74 percent patients were in
NYHA class III, whereas only 8.7 percent were class III symptomatic after
SECP. All patients claimed symptomatic improvement of a mean of 6.8 +/- 1.4
on a visual analog scale of 1-10. After SECP, the LV diastolic dimensions
reduced from 54.6 +/- 7 to 51 +/- 7 mm, systolic dimensions reduced from 40
+/- 8 to 36 +/- 8 mm and LVEF increased from 32.7 +/- 9 to 37.4 +/- 8.5
percent. In conclusion, 3 weeks of therapy with SECP produces significant
improvement in symptomatic status and cardiac function in patients with
chronic CAD and LV dysfunction, refractory to medical therapy.
<3>
Authors
Lawson WE. Hui JC. Zheng ZS. Burger L. Jiang L. Lillis O. Soroff HS.
Cohn PF.
Institution
Department of Medicine, State University of New York at Stony Brook, USA.
Title
Can angiographic findings predict which coronary patients will benefit from
enhanced external counterpulsation?.
Source
American Journal of Cardiology. 77(12):1107-9, 1996 May 15.
Abstract
Enhanced external counterpulsation is an effective treatment
for chronic angina. Theoretical considerations predict greatest benefit in
patients with at least 1 patent conduit in this group of 50 patients (all of
whom improved clinically). Improvement in radionuclide stress perfusion
imaging was seen in 80% of treated patients and was inversely related to
extent of coronary disease.
<4>
Authors
Fricchione GL. Jaghab K. Lawson W. Hui JC. Jandorf L. Zheng ZS. Cohn
PF. Soroff H.
Institution
Department of Psychiatry and Behavioral Science, SUNY at Stony Brook, USA.
Title
Psychosocial effects of enhanced external counterpulsation
in the angina patient.
Source
Psychosomatics. 36(5):494-7, 1995 Sep-Oct.
Abstract
Enhanced external counterpulsation (EECP) is a noninvasive
pantaloon device designed to increase coronary artery flow in the treatment
of angina. This pilot study, conducted in 1992-1993, which used psychosocial
testing pre- and posttreatment, yielded data suggesting that EECP is well
tolerated psychosocially and produces improvement in the anginal syndrome.
More comprehensive research is under way to test these preliminary
conclusions.
<5>
Authors
Lawson WE. Hui JC. Zheng ZS. Oster Z. Katz JP. Diggs P. Burger L. Cohn
CD. Soroff HS. Cohn PF.
Institution
Department of Cardiology, State University Health Sciences Center of New York
(SUNY), Stony Brook 11794-8171, USA.
Title
Three-year sustained benefit from enhanced external
counterpulsation in chronic angina pectoris.
Source
American Journal of Cardiology. 75(12):840-1, 1995 Apr 15.
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