Abstract
Background:
CABG is a surgical revascularization procedure to restore blood flow to the heart by introducing a graft either from the legs, wrist, or an internal artery to bypass the diseased large coronary artery, which blocked the blood flow. It is only used to treat those patients who have severe CAD that could lead to a heart attack. Patients undergoing CABG have two options for surgery, which are traditional bypass surgery (on pump) and minimally invasive bypass surgery (off pump). On-pump requires opening the sternum to access the heart (thoracotomy); off-pump requires a small incision in the intercostal space. Surgeons suggest either one of the surgeries to the patient with severe coronary artery disease, depending on the conditions of the patient.
Aim:
To assess and compare the post-operative quality of life in the patients who underwent traditional CABG surgery or minimally invasive bypass surgery.
Methodology:
The patients who underwent CABG and MICS CABG in the past year, November 2022 to November 2023, were identified from the site-tertiary care hospital. They were selected according to inclusion-exclusion criteria. A retro-prospective comparative study was conducted through telephonic interviews with the patients at intervals of 12 months, 9 months, 6 months, and 3 months from their surgery. The interview was conducted using the SF-12 health-related Quality of Life questionnaire, and the respective responses were recorded.
Result:
A total of 335 patients were enrolled in this study, out of which 83% (n = 279) were males and 17% (n = 56) were females. We observed that the majority of the patients were between the ages of 61-70 years (n = 130), followed by 51-60 years of age (n = 105). The most prevalent comorbid condition seen in patients was hypertension (41%; n = 204), followed by diabetes mellitus (36%; n = 180). We noted that a major portion of the population was overweight (49%), and 24% were obese. We found that 49% (n = 165) of the patients had a reduced LVEF%, 33% (n = 111) had a normal LVEF%, and 18% (n = 59) had mildly reduced LVEF% values. There was no significant difference between the LVEF% of both groups. No difference was seen in the total volume of blood administered to the patients in both groups. However, MICS CABG patients had a significantly shorter length of stay than the patients who had traditional CABG surgery. The highest number of patients (68%, or n = 226) were diagnosed with CAD-TVD. MICS CABG patients had significantly better PCS scores in each of the categories, except for the 3-month category. However, they exhibited no significant difference in the MCS scores of the 3, 6, and 12 month categories. Overall PCS scores were also significantly higher in the case of the MICS CABG group, while there was no significant difference in the overall MCS scores. Both the surgeries had more impact on the physical health of the patients than their mental health.
Conclusion:
MICS CABG surgery is associated with a better overall quality of life, predominantly the physical health status, a shorter length of stay at the hospital, and a faster rate of recovery.