Comparison Of The Performance Of The Right And Left Sided Double Lumen Tubes For One Lung Ventilation During Thoracic Surgery In Chinese Population

Objectives-to compare the performance of the right and left sided doublelumen tubes (DLTs) by evaluating the incidence and severity of hypoxemia,hypercapnia, and high airway pressure.Design-A prospective, randomized, comparative and interventional study.Setting-university hospital, thoracic surgery department.Participants-sixty adult patients were included in the study. They wereallocated randomly into two groups, right sided DLT groups (N=30) and leftsided DLT groups (N=30). After induction of anesthesia, the patients wereintubated with either right sided DLT or left sided DLT for one lungventilation during thoracic surgical procedures. Cases with cardiac disease (EF-<45%), CRF, liver dysfunction and COPD were excluded in the study.Measurements and results-there were no cases with SPO2<90%,ETCO2>45mmHg and peak inspiratory pressure>35cm of H20in bothgroups. There is no difference in SPO2, slight elevation of ETCO2and FIO2inleft sided tube but slight decrease in peak inspiratory pressure on left sidedtubes than right sided DLTs.Conclusion-when intraoperative hypoxia, hypercapnia, and high airwaypressure are used as criteria, both tubes have equal performance level andsafety.