Pulmonary Artery Catheter Versus Central Venous Catheter in Patients Undergoing Beating Heart Coronary Artery Bypass Surgery: A Comparative Approach | Chapter 12 | New Frontiers in Medicine and Medical Research Vol. 7
Background: Hemodynamic monitoring during off-pump coronary artery bypass grafting surgery requires the use of a central venous and pulmonary artery catheter.
Methods: In this prospective randomised experiment, sixty patients were randomly assigned to one of two groups: central venous or pulmonary artery catheters after anaesthesia induction with a high dosage of morphine and Inj pancuronium. Patients between the ages of 35 and 65 who were undergoing elective off-pump coronary artery bypass surgery with an ejection fraction of 40-60% were included, whereas those with left ventricular dysfunction were omitted. The same surgeons operated on all of the patients. Fluid volume expansion and inotropic support were used to keep systolic blood pressure (SBP) and/or mean arterial pressure (MAP) above 90 and 60 mm Hg, respectively, throughout the perioperative period. The substance nitroglycerine was employed.
Results: A higher percentage of patients in the CVP group (66.6 percent vs 40 percent, P=0.038) were initiated on inotropes than in the PAC group. 75 percent of those in Grade A need it for fewer than 24 hours, compared to 65 percent in Grade B. Both groups required similar fluid challenge trials [40 percent vs 53.33 percent; P=0.30] and had similar ICU stays (more than 48 hours) [66.67 percent vs 53.3 percent; p=0.29, chi square test]. In the CVP group, more patients suffered complications [6.6 vs 16.6%; P=0.22]. Each group had one patient who died.
Conclusion: In patients with maintained LV function, PA catheter guided management does not provide any significant advantage over CVP guided management alone after OPCAB surgery.
Author (S) Details
Pushkar Desai
Department
of Cardiac Anaesthesia, Seth GS Medical College and Kem Hospital, Mumbai,
India.
Shirish Mahure
Department
of Cardiac Anaesthesia, Seth GS Medical College and Kem Hospital, Mumbai,
India.
Manjula Sarkar
Department
of Cardiac Anaesthesia, Seth GS Medical College and Kem Hospital, Mumbai,
India.
Sanjeeta Umbarkar
Department
of Cardiac Anaesthesia, Seth GS Medical College and Kem Hospital, Mumbai,
India.
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