ABSTRACT
Background: Conventional coronary artery bypass surgery (CABG) is associated with substantial morbidity caused by cardiopulmonary bypass (CPB) and median sternotomy. Here we described an innovative technique to perform complete revascularization through a left lateral thoracotomy without CPB (ThoraCAB). Methods: From September 2005 to December 2008 a total 83 patients underwent ThoraCAB in National Institute of Cardio Vascular Diseases (NICVD). The patient is positioned with the left side elevated to 45 degree. A 6 to 8 inches long incision is made over the left 4th or 5th intercostal space from just medial to the nipple to the anterior axillary line. The left internal mammary artery (LIMA) is harvested as a pedicle graft under vision. Distal coronary anastomosis is completed first on the beating heart using a stabilizer, followed by proximal anastomoses on the descending aorta. Peroperative and postoperative complication the arrhythmia hypotension wound infection death was observed. Results: Complete revascularization was achieved in all patients. The number of grafts averaged 2.18±1.08 per patients. One patient died (1.2%) due to severe respiratory acidosis. One patient (1.2%) was converted to CPB due to arrhythmia. No strokes were observed. Of these patients, 7.2% developed new onset postoperative atrial fibrillation. Conclusion: ThoraCAB has been feasible in the vast majority of the patients requiring CABG surgery. The prevalence of the post operative atrial fibrillation was low. Left lateral thoracotomy offers an attractive and effective alteration to Off Pump median sternotomy.
ABSTRACT
Background : During off pump coronary artery bypass surgery (OPCAB) to provide adequate myocardial protection cardiac anaesthesiologist frequently needs to use various pharmacological intervention rather than physiological manipulation. This is challenging to overcome the adverse effects of the various drugs. During the past few years, high thoracic epidural anaesthesia (HTEA) as an adjunct to general anaesthesia has become more popular and has been shown to be potentially beneficial in patients with coronary diseases. It provides good protection from stress response, ensures hemodynamic stability, improves distribution of coronary blood flow and reduce demand for oxygen and perioperative arrhythmia. Objective : This study has been undertaken with a view to compare the requirement of intraoperative cardiac drugs between HTEA with General Anaesthesia(GA) and GA alone. Methods: Prospective, randomized case control study was undertaken in sixty patients, without having left main coronary disease, left ventreicular ejection fraction <35% or contraindication of regional anaesthesia scheduled for OPCAB. They were divided into two groups, thirty in each group. Group A patients received GA alone and group B patients received high thoracic epidural anaesthesia with GA. Requirement of drugs (antiarrhythmic, inotropes, vasoconstrictor, vasodilators,Esmolol e.g.) during operation were recorded. Results: Dopamine was needed in 27(90.0%)patients in group A and 11(36.7%) patients in group B, adrenaline was used in 15(50.0%)patients in group A and 4(13.3%) in group B; Dobutamine was used only in 5(15.0%) patients in group A and ephedrine was required only in 2(5.0%) in group B. Regarding the Antiarrhythmic drugs, Lignocanie, Amiodarone and DC Shock was required only in 17(55.0%), 12(40.0%) and 5(15.0%) patients respectively only in group A. In vasodilators group, Nitropruside was used in 5(15.0%) and 1(3.3%) patients in group A and group B respectively. Esmolol was used in 17(55.0%) patients in group A and 1(3.3%) in group B. Significant (p<0.05) difference were found in use of all drugs between two groups except Ephedrine and Nitropruside . Conclusion: The anaesthetic technique HTEA with GA required minimum intra operative cardiac drugs than GA only.
ABSTRACT
The successful anaesthetic management using a cervical epidural technique is reported in patients undergoing carotid artery surgery. Adequate analgesia is obtained and the adequacy of cerebral blood flow is easily judged by the patient’s state of consciousness. Cervical epidural anaesthesia could be a safe and reasonable technique for the management of patients who need carotid artery surgery.1 A 54 years old man of A.S.A (American Society of Anesthesiologists) grade- II underwent carotid endarterectomy under Cervical Epidural Anaesthesia (CEA) at C7 – T1 level using a mixture of 0.5% Lidocaine, 0.25% Bupivacaine and Fentanyl citrate. Standard peroperative monitoring including invasive arterial blood pressure and arterial blood gas analysis was done.