Comparison of GlideScope Video Laryngoscopy and Direct Laryngoscopy for Tracheal Intubation in Neonates

BACKGROUND: GlideScope video laryngoscope (GS) has been widely used to facilitate tracheal intubation in adults and pediatric patients because it can improve glottic view. Several investigations performed in pediatric patients have shown that GS provides a better view of the glottis than direct laryngoscope (DL). However, to date, there are no studies assessing the use of GS in neonates. Therefore, we conducted a prospective study to compare time to intubate (TTI) when either GS or DL was used for endotracheal intubation in neonates. METHODS: Seventy neonates (American Society of Anesthesiologists physical status I and II, scheduled to undergo elective surgery under general anesthesia) were randomized to GS group (n = 35) and DL group (n = 35). The primary outcome variable of the study was TTI. As secondary outcomes, success rate of first intubation attempt of all neonates, intubation attempts, and adverse events were also evaluated. The glottic views (depicted by Cormack and Lehane [C&L] grades) obtained with GS and DL were compared. RESULTS: There were no significant differences in TTIs of neonates with all C&L grades (95% CI, −7.36 to 4.44). There was also no difference in the subgroups of neonates with C&L grades I and II (n = 30 each; 95% CI, −0.51 to 5.04). However, GS significantly shortened the TTIs of neonates with C&L grades III and IV compared to DL (n = 5 each group; 95% CI, 4.94–46.67). GS improved the glottic view as compared to DL. Although the total tracheal intubation attempts in the GS group was fewer than that in the DL group (36 vs 41), there was no significant difference (P = .19). CONCLUSIONS: GS use did not decrease the TTI of all neonates and neonates with C&L grades I and II as compared to DL use; however, GS significantly decreased the TTI of neonates with C&L grades III and IV. Additionally, GS use provided improved glottic views. Accepted for publication May 31, 2018. Funding: None. The authors declare no conflicts of interest. Clinical trial number: ChiCTR1800014376, chictr.org.cn. Reprints will not be available from the authors. Address correspondence to Bingdong Tao, MD, PhD, Department of Anesthesiology of Shengjing Hospital, China Medical University, 36 Sanhao St Heping District, Shenyang, Liaoning Province, 110004, China. Address e-mail to sdream@vip.163.com. © 2018 International Anesthesia Research Society

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