SLIPA LARYNGEAL MASK GENERAL ANESTHESIA COMBINED WITH CERVICAL PLEXUS BLOCK FOR INTERNAL FIXATION OF BEACH-CHAIR FRACTURE OF CLAVICLE
Objective To observe the clinical effect of SLIPA laryngeal mask general anesthesia (GA) combined with cervical plexus block (CPB) for internal fixation of beach chair fracture of clavicle.Methods Forty-eight patients with fracture of clavicle scheduled for undergoing internal fixation were selected and evenly randomized to SLIPA laryngeal mask (group S) and tracheal intubation (group G).The mean arterial pressure (MAP) and heart rate (HR) at five time points five minutes after entering operating room (T0),15 min after cervical plexus block,and before intravenous anesthesia induction (T1),immediately after laryngeal mask or endotracheal intubation (T2),before removing laryngeal mask or tracheal tube (T3) and immediately upon removing laryngeal mask or tracheal tube (T4)-were recorded.Artery blood pH,arterial partial pressure of carbon dioxide (PaCO2),arterial oxygen saturation (SaO2) and peak airway pressure (PAP) were detected before inserting the laryngeal mask or intubation,30 minutes and one hour after inserting the mask or intubation.Adverse reactions after extubation in the patients were observed.Results In group G,the MAP and HR at T2 and T4 were higher than that in T2 (F=10.682,26.713;P<0.05).Compared with group S,the MAP and HR at T2 and T4 in group G were significantly higher (t=2.162-2.690,P<0.05).PAW and PaCO2,in both groups,were in the normal range at each time point after the change of body position.As for adverse reactions after extubation,bucking was recorded in six patients of group G,and in group S,three patients said dry throat,two complained of gastric distension.One case in each group was found blood oozing at removing the tube.The difference in incidence of untoward reactions between the two groups was not significant (P>0.05).There was no reflux aspiration was recorded in patients of both groups.Conclusion SLIPA laryngeal mask anesthesia combined with cervical plexus block for internal fixation of beach chair fracture of clavicle can achieve the same effectiveness as intubation general anesthesia,however,with the extension of the time of use,the tightness of the laryngeal mask may decrease.