Clinical effect of supersmooth coated tracheal catheter for nasal tracheal intubation
Objective To compare the difficulty and complications of nasal tracheal intubation guided by visual laryngoscope between supersmooth coated tracheal catheter and ordinary reinforced catheter.Methods This study was a randomized controlled trial.A total of 120 patients were prospectively selected from Shenzhen University General Hospital from June 2023 to August 2023 for elective surgery under general anesthesia through nasal tracheal intubation,including patients in stomatology and spinal orthopedics,with American Society of Anesthesiologists(ASA)grade Ⅰ to Ⅲ,aged 18 to 65 years,regardless of gender.The patients were divided into two groups by the random number table method:a supersmooth coated tracheal catheter group(group C)and an ordinary reinforced tracheal catheter group(group P),with 60 cases in each group.The time of catheter passing through the nasal cavity,catheter tip bloodstain score(B1),cuff bloodstain score(B2),and total injury score(B=B1+B2)were recorded.The mean arterial pressure(MAP),heart rate(HR),and pulse oxygen saturation(Sp02)were recorded before intubation(t1),after the catheter passing through the nasal cavity(t2),and 1 min after passing through the glottis(t3).t test,analysis of variance for repeated measurements,andx2 test were used.Results During the process of nasal tracheal intubation,the time of catheter passing through the nasal cavity[(8.43±4.85)s]in group C was shorter than that in group P[(17.00±8.91)s],with a statistically significant difference(P<0.05).The incidence of catheter tip bloodstain in group C[9.4%(5/53)]was lower than that in group P[27.6%(16/58)],with a statistically significant difference(P<0.05).Comparison of HR at 3 time points in group P showed statistically significant differences(all P<0.05).Conclusion Supersmooth coated tracheal catheter is a safe and effective tool for nasal tracheal intubation,which can shorten the time of catheter passing through the nasal cavity,reduce the damage of the catheter tip to the nasal cavity,and is beneficial for the stability of hemodynamics.