Abstract:
BACKGROUND:Obstetric dfficult airway is a leading cause of maternal morbidity and mortality. The laryngeal mask airway (LMA) is often used as a rescue airway device after failed intubation, however, little is known about predictors of difficult LMA insertion, particularly in obstetrics. Since Mallampati scores of III/IV has been associated with difficult tracheal intubation, our present study aims to investigate if Mallampati score (MP) could predict airway outcomes for LMA use in obstetrics. METHODS:This prospective cohort study was performed at a single-center: Quanzhou Women's and Children's Hospital, Fujian Province, China. Five hundred and eighty-four parturients undergoing elective cesarean section under general anesthesia were recruited. The primary outcome was time to effective ventilation, and secondary outcomes included first attempt insertion success, seal pressure, ventilation and hemodynamic parameters, occurrence of clinical aspiration, and maternal and fetal outcomes. RESULTS:The parturients were classified into two groups based on MP of III/IV (High MP: 61) versus I/II (Low MP: 523). BMI was higher in the High MP group than in the Low MP group (mean (SD) 29.3 (7.0) vs 26.8 (3.1), p < 0.0001). There was no difference in maternal age, ASA status and gestational age. There was similar time to effective ventilation (mean (SD) High MP: 14.9 (4.5) vs Low MP: 15.7 (4.4) seconds, p = 0.2172), and first attempt success rate, seal pressure, and peak airway pressure. No clinical aspiration was noted. The incidence of blood on SLMA was higher in the High MP group than in Low MP (4 (6.6%) vs 4 (0.8%), p = 0.001). There was no difference in sore throat, voice hoarseness, maternal satisfaction and fetal outcomes. CONCLUSION:High MP was not associated with reduced SLMA airway outcomes in cesarean section under general anesthesia, but may increase the risk of blood found on SLMA upon removal. TRIAL REGISTRATION:This study was registered at http://www.clinicaltrials.gov , identifier: NCT02026882 , retrospectively registered. Date of registration: December 31, 2013.
journal_name
BMC Anesthesioljournal_title
BMC anesthesiologyauthors
Tan HS,Li SY,Yao WY,Yuan YJ,Sultana R,Han NR,Sia ATH,Sng BLdoi
10.1186/s12871-019-0796-5subject
Has Abstractpub_date
2019-07-08 00:00:00pages
122issue
1issn
1471-2253pii
10.1186/s12871-019-0796-5journal_volume
19pub_type
临床试验,杂志文章abstract:BACKGROUND:Current pain assessment and treatment does not address every patient's requirements. Although the Polish national guidelines for post-operative pain management have been published, many patients experience severe pain in the postoperative period. The main goal of our study was to assess pain severity among p...
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pub_type: 杂志文章,多中心研究
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