Evaluation of Intraoperative Complications in Pericardiectomy with Transdiaphragmatic Thoracoscopic Approach in Dog

Abstract

Objectives- Recording intraoperative cardiorespiratory events in thoracoscopic total pericardiectomy via transdiaphragmatic camera port in dog to evaluate feasibility and risks of mechanical stimulation of phrenic nerve during this surgical approach. Design- Technical assessment, experimental study. Animals- Nine healthy, male mixed breed dogs. Procedures- Under one lung ventilation inhalation general anesthesia pericardiectomies performed by thoracoscopic method using paraxiphoid transdiaphragmatic approach as camera port and two other on left thoracic wall as operating port. Cardiorespiratory parameters wererecorded during operation. Results- Eight dogs tolerate surgical procedure, there was mild hypoxia during anesthesia due to one lung ventilation, and transient bradycardia during surgical manipulation of pericardium and some cardiac arrhythmias was recorded. Conclusion and Clinical Relevance- Thoracoscopic total pericariectomy is feasible via a paraxiphoid transdiaphragmatic camera port in dog intensive anesthetic monitoring, gentle handling of operative instrument in thoracic cavity and good experience in thoracoscopy to perform safe operation.