Chayuttra Voraruth1, Numtip Tongsawang2, Nichanan Ruangwattanapaisarn3, Anchalee Limrungsikul4. 1. Department of Pediatrics, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand. 2. Department of Pediatric Nursing, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand. 3. Department of Diagnostic and Therapeutic Radiology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand. 4. Department of Pediatrics, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand. anchalee.lim@mahidol.ac.th.
Abstract
OBJECTIVE: To develop a nasal-tragus length (NTL)-based table for estimating the endotracheal tube (ETT) insertion depth. STUDY DESIGN: A prospective study of 110 Thai neonates was conducted in a NICU in Bangkok, Thailand. The correlation between the optimal insertion depth (Opt-Depth) and NTL was determined, and then an NTL-based table for estimating ETT depth was developed. The accuracy of using various methods in estimating ETT depth was compared. RESULTS: A strong correlation between Opt-Depth and NTL was found (r = 0.897, p < 0.001). There was no significant difference between ETT depth estimated by the NTL-based table and Opt-Depth [mean difference (95% CI) -0.75 (-12.11 to 10.61) mm, p = 0.22]. The accuracies of using NTL + 1, NTL-based, GA-based, and BW-based tables for estimating ETT depth were 32.7%, 55.5%, 61.8%, and 52.7%, respectively. CONCLUSION: Our NTL-based table for estimating the ETT depth had an acceptable accuracy while using "NTL + 1" resulted in overestimating ETT depth.
OBJECTIVE: To develop a nasal-tragus length (NTL)-based table for estimating the endotracheal tube (ETT) insertion depth. STUDY DESIGN: A prospective study of 110 Thai neonates was conducted in a NICU in Bangkok, Thailand. The correlation between the optimal insertion depth (Opt-Depth) and NTL was determined, and then an NTL-based table for estimating ETT depth was developed. The accuracy of using various methods in estimating ETT depth was compared. RESULTS: A strong correlation between Opt-Depth and NTL was found (r = 0.897, p < 0.001). There was no significant difference between ETT depth estimated by the NTL-based table and Opt-Depth [mean difference (95% CI) -0.75 (-12.11 to 10.61) mm, p = 0.22]. The accuracies of using NTL + 1, NTL-based, GA-based, and BW-based tables for estimating ETT depth were 32.7%, 55.5%, 61.8%, and 52.7%, respectively. CONCLUSION: Our NTL-based table for estimating the ETT depth had an acceptable accuracy while using "NTL + 1" resulted in overestimating ETT depth.
Authors: Abdul Razak; Maheer Faden; Jameel Alghamdi; Abdulaziz Binmanee; Abdullah Hawash Alonazi; Anas Hamdoun; Saud Almugaiteeb; Waseemoddin Patel; Hamdi Katar; Fabian Lora; Abdullah Alismail; Adrian Lavery; Ibrahim Hamama; Noura Alsaleem; Manal Alshaikh; Lama Alrasheed; Omar Aldibasi Journal: BMJ Open Date: 2022-01-19 Impact factor: 2.692