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Techniques of preoxygenation in patients with ineffective face mask seal


, : Techniques of preoxygenation in patients with ineffective face mask seal. Indian Journal of Anaesthesia 57(2): 175-179

Ineffective face mask seal is the most common cause for suboptimal pre-oxygenation. Room air entrainment can be more with vital capacity (VC) breaths when the mask is not a tight fit. This study was designed to compare 5 min tidal volume (TV) breathing and eight VC breaths in patients with ineffective face mask seal. Twenty eight ASA I adults with ineffective face mask seal were randomized to breathe 100% oxygen at normal TV for 5 min (Group TV) and eight VC breaths (Group VC) in a cross over manner through circle system at 10 L/min. End tidal oxygen concentration (EtO2) and arterial blood gas analysis was performed to evaluate oxygenation with each technique. Data were analysed using SPSS statistical software, version 16. Friedman's two-way analysis of variance by ranks was used for non-parametric data. Significant increase in EtO2 (median 90) and PaO2 (228.85) was seen in group TV when compared to group VC (EtO2 median 85, PaO2 147.65), P<0.05. Mean total ventilation volume in 1 min in group VC was 9.4±3.3 L/min and more than fresh gas flow (10 L/min) in seven patients. In group TV, the fresh gas flow (50 L/5 min) was sufficient at normal TV (mean total ventilation in 5 min 36.7±6.3 L/min). TV breathing for 5 min provides better pre-oxygenation in patients with ineffective mask seal with fresh gas flow of 10 L/min delivered through a circle system.

US$19.90

PMID: 23825818

DOI: 10.4103/0019-5049.111847


Other references

Bhutta, Z.A.; Yusuf, K.; Khan, I.A., 1999: Is management of neonatal respiratory distress syndrome feasible in developing countries? Experience from Karachi (Pakistan). There is a marked paucity of data on the prevalence, management, and outcome of respiratory distress syndrome (RDS) among newborn infants born in developing countries. We reviewed the clinical profile, presentation, mode of therapy, and immediate...

Abramowitz, J.; Iyengar, R.; Birnbaumer, L., 1980: On the mode of action of catecholamines on the turkey erythrocyte adenylyl cyclase. Evaluation of basic activity states after removal of endogenous GDP and interpretation of nucleotide regulation and hormone activation in terms of a two-state model. Journal of Biological Chemistry 255(17): 8259-8265

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Schurian, K., 1978: Vanessa atalanta. Atalanta (Marktleuthen): 94: 281

Harish-Chandra, 1956: Invariant Differential Operators On A Semisimple Lie Algebra. Proceedings of the National Academy of Sciences of the United States of America 42(5): 252-253

Jit, I.; Jhingan, V.; Kulkarni, M., 1980: Sexing the human sternum. For differentiating a male from a female sternum, a metrical study of 400 adult North Indian sterna (312 males and 88 females) obtained from medicolegal postmortems was made. If the combined length of the manubrium and mesosternum was more than 14...

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