Outcome analysis of coronary artery bypass grafting: minimally invasive versus standard techniques

Abstract

Minimally invasive coronary artery bypass grafting (MIDCAB) procedures are purported to result in improvements in patient management over standard techniques. A comparative study was performed on risk-stratified patients treated with either technique. Following institutional review board approval, a retrospective random chart review was conducted on 27 MIDCAB and 37 standard coronary artery bypass grafting (CABG) patients who were operated on over a 12-month period at the University of Nebraska Medical Center. Risk stratification was accomplished by dividing the two patient populations, MIDCAB and 'standard', into one of four subgroups based on a preoperative risk score. Risk stratification was achieved by dividing the patient populations into one of four subgroups: good, fair, poor and high risk. Both groups received similar operations and surgical interventions, except for the inclusion of cardiopulmonary bypass (CPB). Approximately 200 parameters were collected and analyzed in the following categories: anthropometric, operative and postoperative outcomes. The MIDCAB group had a significantly lower number of vessels bypassed (2.0+/-0.7 vs 3.4+/-0.9, p < 0.0001). Total postoperative blood product transfusions trended higher in the standard group (6.1+/-12.6 U) when compared to the MIDCAB patients (2.3+/-5.5 U, p < 0.15), although not statistically significant. Postoperative inotrope use was significantly less in the MIDCAB group (19% vs 59%, p < 0.002). Ventilator time in the MIDCAB group was 10.5+/-5.4 h vs 15.0+/-12.3 h in the standard group (p < 0.07). The MIDCAB group had an overall greater length of stay, but was only statistically different within the poor-risk subgroup (12.2+/-10.7 vs 7.5+/-3.9, p < 0.04). The results of this study show that when CPB is not utilized in treating patients undergoing CABG procedures, the benefits in regards to patient outcomes are unclear. This necessitates the need for further work when comparing outcomes for risk-stratified patients.

Simultaneous Minimally Invasive Coronary Artery Bypass Grafting and Lung Resection

“…With the progress of surgical technology, minimally invasive CABG technology has been dramatically developed in recent years and can achieve satisfactory results comparable to CABG via sternotomy in selected patients. [24][25][26] We performed a minimally invasive procedure to treat patients with single or double CAD complicated by a left lung tumor and achieved satisfactory results. The left fourth intercostal anterolateral mini-incision is generally used to perform the procedure.…”

Perfusion Treatment Algorithm: Methods of Improving the Quality of Perfusion

“…This provides the surgeon with an unobstructed means of access to the coronary arteries and, with chemically induced cardioplegia, creates a flaccid heart. Positive outcomes with coronary surgical revascularization have made this technique the procedure of choice for many suffering from ischemic heart disease (1).…”