Turk Anesteziyoloji ve Reanimasyon, cilt.27, sa.8, ss.423-426, 1999 (Scopus)
The aim of our study is to compare the complications and hemodynamic changes during and after removal of LMA in deep anaesthesia versus awake patients. Thirty urological patients of ASA I-II risk were randomly divided into two groups. In group 1, patients were subjected to removal of LMA under deep anaesthesia, in group 2, removal of LMA was planned when gag reflex was present and the patient was awake. Anaesthesia was induced by propofol (2-3 mg/kg IV) and alfentanil (5-15 mcgr/kg IV) and then LMA was placed. Anaesthesia was maintained by O2-N2O, propofol (2-3 mg/kg/h IV) and alfentanil (5-15 mcgr/kg IV). For both of the groups, MAP, HR values were recorded before LMA placement (Z1), after LMA placement (Z2), 5 min. before removal of LMA (Z3), and just after removal of LMA (Z4). Complications which occurred during removal were also recorded. In both groups after LMA removal MAP was increased (p<0.05). In group 1, MAP increased from 86±2.3 mmHg (Z3) to 89±2.1 mmHg (Z4) and in group 2 from 85±4.3 mmHg (Z3) to 105±2.8 mmHg (Z4). The difference was statistically significant in group 2 (p<0.01). In group 2, after the removal of LMA, we observed gingival bleeding in 1 patient, hiccough in 1 patient, squeezing LMA between teeth, coughing and retch in 7 patients. Coughing, squeezing and retch were found to be increased significantly in group 2 (p<0.05). As a result, removal of LMA under deep anaesthesia was more effective to maintain hemodinamic stability, and the recovery period was more comfortable and with less complications.