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  • Title: [Ambulatory cardiac phase II rehabilitation--"the Cologne model"--including 3-year-outcome after termination of rehabilitation].
    Author: Bjarnason-Wehrens B, Predel HG, Graf C, Rost R.
    Journal: Herz; 1999 Apr; 24 Suppl 1():9-23. PubMed ID: 10372304.
    Abstract:
    From January 1992 until December 1994 the Cologne model of ambulant cardiac rehabilitation (ACR) in the greater area of Cologne, Germany, was performed and is still in progress. In Germany until 1992 the cardiac rehabilitation was exclusively performed stationary. The objective of the "Cologne model" was to evaluate, whether the transfer of the stationary cardiac rehabilitation programs into the ambulatory setting is achievable without deficits in efficiency, safety and overall quality. The results obtained are intended to serve for standardization and quality control of future ambulatory cardiac rehabilitation programs in Germany. From 1992 to 1994 108 patients (94 men, 14 women; 52.3 +/- 8.0 years old) with coronary artery disease (CAD) which were compatible with the criteria of the "Cologne model" (Table 1) participated in the 4-week ACR. The indications for inclusion into the ACR were in 74 cases a myocardial infarction (MI), in 34 cases CAD without MI, but with PTCA/stent-procedure (Table 3). Seven patients discontinued the ACR prematurely, 2 patients because of cardiovascular reasons. Reasons for the preference of the ambulatory over a stationary cardiac rehabilitation program were in 40.6% of the patients refusal of "hospital ambience", in 43.6% familiar or in 12.9% professional reasons. During the 4-week ACR patients participated in a mean of 72.9 +/- 6.7 hours of therapy (Table 4). As a result of the ACR exercise tolerance increased highly significantly (**) from 116.4 +/- 28.8 to 129.9 +/- 34.6 watt). This improvement was maintained at the 1- and 3-year control (128.7 +/- 35.8**) examinations (Tables 5 and 7). One year after ACR 77% of the patients stated to be physically active in ambulatory heart groups (AHG) (27.6%) or on their own (49.4%). Three years after ACR the rate of regularly physically active patients still was 59.2%. Furthermore, as a result of ACR the dietary behavior was changed significantly. There was a reduction in the consumption of lipids by 20.8%, saturated fatty acids by 30.7% and of cholesterol by 30.5%. The plasma concentrations of cholesterol decreased from 231 +/- 49.8 to 213.2 +/- 35.9 mg%**. Six (and 12) months after ACR they increased again to 225.6 +/- 39.4 mg%. Three years after ACR the mean cholesterol level was 219.1 +/- 39.3 mg%. In the high risk group (cholesterol at the initial visit > 220 mg%) cholesterol levels were reduced from 266 +/- 44 to 232 +/- 31.9 mg%**. Six and 12 months after ACR they were 239.7 +/- 35.8 mg% and 245.8 +/- 32.6 mg%, respectively, (Tables 6 and 7) and still significantly lower than before ACR, though only 19% of the patients were treated with lipid lowering agents. Three years after ACR cholesterol were 234.6 +/- 37.7 mg%** in the high-risk group. 34.2% of the patients received lipid lowering agents. Mean body weight remained unaltered over the 3-year period. Smoking behavior was not altered significantly during the 4-week ACR. However, before the cardiovascular event 67.3% of the patients had smoked cigarettes. At the beginning and at the end of ACR 20.8% of the patients still smoked. During the ACR the number of smoked cigarettes was reduced significantly from 32.4 +/- 15.2 to 6.9 +/- 5.2 cigarettes per day. One year after ACR 23% of the patients were smokers, 3 years after ACR the percentage of smokers increased to 30.3%. Before ACR 73.3% of the patients were still working. During the first 6 months after ACR 68.2% returned to work and the percentage increased to 73% in the following 6 months. The results demonstrate that it is achievable to transfer the contents of the established stationary cardiac rehabilitation programs into the ambulatory setting without loss of efficiency, safety and overall quality. It is further confirmed, that it is necessary to continuously evaluate the results of the cardiac rehabilitation program on a long-term basis. (ABSTRACT TRUNCATED)
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