The improved exercise capacity will lower the
mortality by 12% for every one metabolic equivalent
improvement. In addition, regular exercise decreases
mortality by 28% which is associated with
improvements in quality of life (QoL) (Seo et al,
2017).
2.1 Cardiac Rehabilitation
Perioperative
Cardiac rehabilitation perioperative consist of
preoperative, intraoperative and postoperative.
Prehabilitation helps patients to overcome the stress
of surgery by improving functional capacity.
Preoperative exercise decreases sympathetic
overreactivity, improves insulin sensitivity, and
increases the ratio of lean body mass to body fat. It
also promotes physical and psychological readiness
for surgery, reduces postoperative complications and
length of stay, and improves the transition from the
hospital to the community. Patient who were given
education regarding postoperative mobilization
before surgery will respond more positively and
enthusiastically to the program (Kementrian
Kesehatan RI, 2018).
2.2 Cardiac Rehabilitation After
Surgery
After the surgery was perform, there is no place for
“bedrest” in the management of patient with
cardiovascular disease. Early mobilization of patient
after cardiac surgery shown to be beneficial for
patient’s recovery. Initiating physical activity in the
early period after cardiac surgery, especially walking
exercise is recommended since it can prevent
complications. Phase 1 begins after the patient has
been considered clinically compensated due to the
optimization of the clinical treatment and/or the use
of an interventional procedure. In this phase, a
combination of low-intensity physical exercise is
indicated as well as stress management techniques,
and education in relation to risk factors. The
duration of this phase has decreased in recent years,
due to shorter hospitalizations (Alexiey et al, 2017;
Priscila et al, 2017).
Cardiac rehabilitation contributes to the
prevention of lung complication and decondition
caused by prolonged bedrest after cardiac surgery.
Exercise-based cardiac rehabilitation decreases
hospital stay, speeds returns to work and reduces
costs in public health. Exercise training can partially
reverse activation of the neurohormonal system and
reduce levels of pro-inflammatory cytokines,
reduces skeletal muscle fatigability, improve skeletal
muscle metabolism, increase blood flow within the
active muscles, and reduce dependence on anaerobic
metabolism. Exercise also has some other benefits
such as lessen the intensity of breathing and muscle
discomfort, improve quality of life, attenuate or
reverse skeletal muscle atrophy and increase
endothelium activation. Therefore, it believes that
exercise training prolongs exercise duration, lowers
cardiovascular demand, lowers ventilator
requirement, allows higher exercise intensity, and
reduces symptoms of dyspnoea and leg discomfort.
This is in turns lead to increase independence and
improvement in general sense of
wellbeing(Mampuya, 2012; Priscila et al, 2017;
Price et al, 2016; Seo et al, 2017).
2.3 The Role Of Cardiac Rehabilitation
In most current guidelines of cardiovascular
societies worldwide, cardiac rehabilitation is a class
I recommendation. (Tedjasukmana and Putra, 2016).
Coronary artery bypass grafting (CABG) is a
procedure which artery or vein are use as graft to
revive the coronary artery (bypass) which is
occluded partially or totally caused by
atherosclerotic process. The procedure explain as
making a new route around the occluded coronary
arteries with the aim of expediting blood flow so the
intake of oxygen and nutrients to the myocardium is
maintained. CABG usually uses saphena veins or
internal mammary veins, in addition to the radial
arteries and gastroiliac arteries although its rarely
use (Tedjasukmana and Putra, 2016).
CABG usually needs an in-hospital stay for a
week and, after discharge, patients usually need a 2-
to 6-week recovery period, necessary to recover and
adapt to daily activities, including return to work. A
significant proportion of patients need to overcome
some problems, like heart failure, anemia, atrial
fibrillation, pulmonary abnormalities, and
thoracotomy- and saphenectomy-related pain.
Cardiac rehabilitation is important considering the
facts that patient’s need to achieve a full and prompt
physical recovery to allow a fast adaptation of daily
life activities (including return to work), the need of
healthy lifestyle and specific pharmacological
regime for a lifetime (Mendes, 2016; Tedjasukmana
and Putra, 2016; Priscila et al, 2017).