Canadian journal of anaesthesia = Journal canadien d'anesthesie · 2012
Video-laryngoscopy versus direct laryngoscopy in critically ill patients: a pilot randomized trial.
Сравнительное исследованиеСтатьяРандомизированное исследованиеПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод пока не подготовлен
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Griesdale Donald E G, Chau Anthony, Isac George, Ayas Najib, Foster Denise, Irwin Corrie, Choi Peter, Canadian Critical Care Trials Group
Аннотация
PURPOSE: Endotracheal intubation in critically ill patients is associated with a high risk of complications that tend to increase with multiple attempts at laryngoscopy. In this pilot study, we compared direct laryngoscopy (DL) with video-laryngoscopy (VL) with regard to the number of attempts and other clinical parameters during endotracheal intubation of critically ill patients performed by novice providers.
METHODS: Patients were randomized to either VL or DL for endotracheal intubation. Exclusion criteria for the study included: requirement for immediate endotracheal intubation, cervical spine precautions, anticipated difficult intubation, oxygen saturation < 90%, or systolic blood pressure < 80 mmHg despite resuscitation. The providers, predominantly non-anesthesiology residents in their first three years of postgraduate training, received a one-hour teaching and mannequin session prior to performing the procedures.
RESULTS: Forty patients, mean age 65 (standard deviation, 16) yr were randomized to VL (n = 20) or DL (n = 20). Sixty percent of the patients received endotracheal intubation for respiratory failure, and all patients received a neuromuscular blocker. Multiple attempts were required in 25/40 (63%) patients, and this did not differ with technique (P = 1.0) Video-laryngoscopy resulted in improved glottic visualization with 85% of patients having a Cormack-Lehane grade 1 view compared with 30% of patients in the DL group (P < 0.001). Total time-to-intubation for VL was 221 sec (interquartile range [IQR 103-291]) vs 156 sec [IQR 67-220] for DL (P = 0.15). Video-laryngoscopy resulted in a lower median SaO(2) (86%) during endotracheal intubation [IQR 75-93] compared with a median SaO(2) of 95% in the DL group [IQR 85-99] (P = 0.04).
CONCLUSIONS: Video-laryngoscopy resulted in improved glottic visualization compared with DL; however, this did not translate into improved clinical outcomes. The trial was registered on ClinicalTrials.gov number, NCT00911755.
METHODS: Patients were randomized to either VL or DL for endotracheal intubation. Exclusion criteria for the study included: requirement for immediate endotracheal intubation, cervical spine precautions, anticipated difficult intubation, oxygen saturation < 90%, or systolic blood pressure < 80 mmHg despite resuscitation. The providers, predominantly non-anesthesiology residents in their first three years of postgraduate training, received a one-hour teaching and mannequin session prior to performing the procedures.
RESULTS: Forty patients, mean age 65 (standard deviation, 16) yr were randomized to VL (n = 20) or DL (n = 20). Sixty percent of the patients received endotracheal intubation for respiratory failure, and all patients received a neuromuscular blocker. Multiple attempts were required in 25/40 (63%) patients, and this did not differ with technique (P = 1.0) Video-laryngoscopy resulted in improved glottic visualization with 85% of patients having a Cormack-Lehane grade 1 view compared with 30% of patients in the DL group (P < 0.001). Total time-to-intubation for VL was 221 sec (interquartile range [IQR 103-291]) vs 156 sec [IQR 67-220] for DL (P = 0.15). Video-laryngoscopy resulted in a lower median SaO(2) (86%) during endotracheal intubation [IQR 75-93] compared with a median SaO(2) of 95% in the DL group [IQR 85-99] (P = 0.04).
CONCLUSIONS: Video-laryngoscopy resulted in improved glottic visualization compared with DL; however, this did not translate into improved clinical outcomes. The trial was registered on ClinicalTrials.gov number, NCT00911755.