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1.
Clin Cardiol ; 40(5): 281-286, 2017 May.
Article in English | MEDLINE | ID: mdl-28075500

ABSTRACT

BACKGROUND: Exercise-based rehabilitation is an important part of treatment patients following coronary artery bypass graft (CABG) surgery. HYPOTHESIS: To evaluate effect of very short/short-term exercise training on cardiopulmonary exercise testing (CPET) parameters. METHODS: We studied 54 consecutive patients with myocardial infarction (MI) treated with CABG surgery referred for rehabilitation. The study population consisted of 50 men and 4 women (age 57.72 ± 7.61 years, left ventricular ejection fraction 55% ± 5.81%), who participated in a 3-week clinical and 6-month outpatient cardiac rehabilitation program. The Inpatient program consisted of cycling 7 times/week and daily walking for 45 minutes. The outpatient program consisted mainly of walking 5 times/week for 45 minutes and cycling 3 times/week. All patients performed symptom-limited CPET on a bicycle ergometer with a ramp protocol of 10 W/minute at the start, for 3 weeks, and for 6 months. RESULTS: After 3 weeks of an exercise-based cardiac rehabilitation program, exercise tolerance improved as compared to baseline, as well as peak respiratory exchange ratio. Most importantly, peak VO2 (16.35 ± 3.83 vs 17.88 ± 4.25 mL/kg/min, respectively, P < 0.05), peak VCO2 (1.48 ± 0.40 vs 1.68 ± 0.43, respectively, P < 0.05), peak ventilatory exchange (44.52 ± 11.32 vs 52.56 ± 12.37 L/min, respectively, P < 0.05), and peak breathing reserve (52.00% ± 13.73% vs 45.75% ± 14.84%, respectively, P < 0.05) were also improved. The same improvement trend continued after 6 months (respectively, P < 0.001 and P < 0.0001). No major adverse cardiac events were noted during the rehabilitation program. CONCLUSIONS: Very short/short-term exercise training in patients with MI treated with CABG surgery is safe and improves functional capacity.


Subject(s)
Ambulatory Care , Cardiac Rehabilitation/methods , Cardiology Service, Hospital , Coronary Artery Bypass/rehabilitation , Exercise Therapy , Inpatients , Myocardial Infarction/surgery , Outpatients , Aged , Cardiac Rehabilitation/adverse effects , Cardiorespiratory Fitness , Coronary Artery Bypass/adverse effects , Exercise Test , Exercise Therapy/adverse effects , Exercise Tolerance , Female , Humans , Male , Middle Aged , Myocardial Infarction/diagnosis , Myocardial Infarction/physiopathology , Recovery of Function , Registries , Time Factors , Treatment Outcome
2.
Eur J Phys Rehabil Med ; 52(3): 364-9, 2016 Jun.
Article in English | MEDLINE | ID: mdl-27324396

ABSTRACT

BACKGROUND: Exercise-based rehabilitation is an important part of treatment patients following acute myocardial infarction (MI). However, data are scarce on the efffects of short-term exercise programs in patients with acute MI treated with primary percutaneous coronary intervention (PPCI). AIM: To evaluate the effect of short-term exercise training on cardiopulmonary exercise testing (CPET) parameters in patients suffering acute MI treated with PPCI. STUDY DESIGN: Observational longitudinal study. SETTING: Inpatient cardiac rehabilitation. POPULATION: Sixty consecutive patients with MI treated with PPCI referred for rehabilitation. METHODS: We studied 60 consecutive patients with MI treated with PPCI reffered for rehabilitation to our institution. The study population consisted of 54 men and 6 women (age 52.0±8.4 years, left ventricular ejection fraction 54.1±8.1%), who participated in a 3-week clinical cardiac rehabilitation program. The program consisted of cycling for 7 times/week, and daily walking for 45 minutes at an intensity of 70-80% of the individual maximal heart rate. All patients performed symptom-limited CPET on a bicycle ergometer with a ramp protocol of 10 w/min. The CPET was also performed after cardiac rehabilitation programs. RESULTS: After 3 weeks of exercise-based cardiac rehabilitation program improved exercise tolerance as compared to baseline (peak workload 119.28±20.45 vs. 104.35±22.01 watts, respectively, P<0.001), as well as peak respiratory exchage ratio (1.10±0.14 vs. 1.04±0.01, respectively, P<0.001). Peak heart rate at rest, peak and after 1 minute of rest were also improved. Most importantly, peak VO2 (19.27±4.16 vs. 17.27±3.34 ml/kg/min, respectively, P<0.001), peak VCO2 (1.83±0.38 vs. 1.58±0.30, respectively, P<0.001), peak ventilatory exchange (53.73±12.47 vs. 45.50±11.32 L/min, respectively, P<0.001) and peak breathing reserve (55.20±12.36 vs. 60.18±14.19%, respectively, P<0.001) were also improved. No major adverse cardiac events were noted during the rehabilitation program. CONCLUSIONS: Our data indicate that short-term exercise training in patients with acute MI treated with PPCI is safe and improves functional capacity, as well as test duration, work load and heart rate response. CLINICAL REHABILITATION IMPACT: It appears that three week cardiac rehabilitation is an effective approach to improve exercise capacity in patients with acute MI treated with PPCI.


Subject(s)
Exercise , Myocardial Infarction/rehabilitation , Percutaneous Coronary Intervention , Bicycling , Echocardiography , Female , Humans , Longitudinal Studies , Male , Middle Aged , Myocardial Infarction/blood , Myocardial Infarction/surgery , Observational Studies as Topic , Walking
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