Effects of Laryngeal Mask Insertion on Cardiovascular Responses during Cesarean Section

1995 ◽  
Vol 29 (2) ◽  
pp. 213
Author(s):  
Seung Ho Ha ◽  
Dae Pal Park
Keyword(s):  
Cesarean Section ◽  
Cardiovascular Responses ◽  
Laryngeal Mask ◽  
Laryngeal Mask Insertion

scholarly journals Induction of Anaesthesia with Sevoflurane, Preprogrammed Propofol Infusion or Combined Sevoflurane/Propofol for Laryngeal Mask Insertion: Cardiovascular, Movement and EEG Bispectral Index Responses

1998 ◽  
Vol 26 (4) ◽  
pp. 360-365 ◽  
Author(s):  
D. W. Blake ◽  
M. N. Hogg ◽  
C. H. Hackman ◽  
J. Pang ◽  
A. R. Bjorksten
Keyword(s):  
Bispectral Index ◽  
Cardiovascular Responses ◽  
Laryngeal Mask ◽  
Depth Of Anaesthesia ◽  
Movement Response ◽  
Inhalation Induction ◽  
Sevoflurane Group ◽  
Laryngeal Mask Insertion ◽  
End Tidal ◽  
Induction Of Anaesthesia

Inhalation induction with sevoflurane was compared with propofol or sevoflurane/propofol in 60 unpremedicated adults. Target concentrations for the three groups (with 60% nitrous oxide) were 3% end-tidal sevoflurane, 12 mg/l propofol and 1.5% sevoflurane/6 mg/l propofol respectively, prior to insertion of a laryngeal mask airway (LMA) at 10 minutes. Induction of anaesthesia was satisfactory in each group, but movement response to LMA insertion was observed in 20 patients (least in the sevoflurane group). Cardiovascular responses were similar except for a lower heart rate in the sevoflurane group. EEG bispectral index suggested a greater depth of anaesthesia in the inhalation induction group. A bispectral index of 60 separated patients responding to LMA insertion from nonresponders (P=0.006), and had a sensitivity of 68% and specificity 70%. Movement response was not predicted by cardiovascular changes.

scholarly journals The Incidence of Bacteraemia following Laryngeal Mask Insertion

1992 ◽  
Vol 20 (4) ◽  
pp. 484-486 ◽  
Author(s):  
J. Brimacombe ◽  
N. Shorney ◽  
R. Swainston ◽  
G. Bapty
Keyword(s):  
Laryngeal Mask Airway ◽  
Antibiotic Prophylaxis ◽  
Laryngeal Mask ◽  
The Other ◽  
Anaerobic Culture ◽  
Culture Bottle ◽  
Oral Intubation ◽  
Skin Flora ◽  
Laryngeal Mask Insertion

The incidence of bacteraemia following insertion of the laryngeal mask airway (LMA) was investigated in one hundred fit patients. Four cultures were positive: three represented contamination with skin flora; the other was a microaerophilic streptococcus grown from an anaerobic culture bottle. Although this organism can be pathogenic, it may also represent contamination. Our findings suggest that significant bacteraemia on insertion of the LMA is uncommon and is probably no more than with oral intubation. Antibiotic prophylaxis is of doubtful benefit in these circumstances.

scholarly journals Comparison of laryngeal mask and intubating laryngeal mask insertion by the naïve intubator

2000 ◽  
Vol 84 (1) ◽  
pp. 103-105 ◽  
Author(s):  
A Choyce ◽  
M S Avidan ◽  
C Patel ◽  
A Harvey ◽  
C Timberlake ◽  
...  
Keyword(s):  
Laryngeal Mask ◽  
Laryngeal Mask Insertion

scholarly journals Size selection of the Ambu AuraOnce laryngeal mask in Chinese men weighing >70 kg: a pilot study

2021 ◽  
Vol 49 (5) ◽  
pp. 030006052110166
Author(s):  
Jiahui Chen ◽  
Chunhuan Chen ◽  
Wei Xu ◽  
Xiaoguang Zhang
Keyword(s):  
Computed Tomography ◽  
Success Rate ◽  
Fiberoptic Bronchoscopy ◽  
Laryngeal Mask ◽  
Insertion Time ◽  
Air Leakage ◽  
Chinese Men ◽  
Laryngeal Mask Insertion ◽  
Laryngeal Anatomy ◽  
Rate Requirement

Objective To collect computed tomography data of the laryngeal anatomy of Chinese men and to determine the feasibility of using the size 4 Ambu AuraOnce laryngeal mask (Ambu A/S, Copenhagen, Denmark) in Chinese men weighing >70 kg. Methods This prospective study involved men who underwent surgery from May 2018 to January 2019 at Jinshan Hospital. Pharyngeal and laryngeal parameters were measured by computed tomography. The laryngeal mask insertion success rate, requirement for tracheal tube insertion, laryngeal mask insertion time, fiberoptic bronchoscopy grading, air leakage pressure, and pharyngeal complications were analyzed. Results In a comparison of the size 4 and 5 Ambu AuraOnce devices, the first insertion success rate was 100% and 87% and the three-times insertion success rate was 100% and 93%, respectively, with no significant differences. However, the insertion time was significantly different at 19.6 ± 5.9 versus 31.1 ± 11.2 s, respectively, and the proportions of fiberoptic grading levels were also significantly different. There were no significant differences in the air leakage pressure or pharyngeal complications. Conclusion The size 4 Ambu AuraOnce is more adequate than the size 5 for Chinese men weighing >70 kg, with a shorter insertion time and higher fiberoptic bronchoscopic grading.

scholarly journals Comparison of efficacy of propofol and sevoflurane for laryngeal mask airway insertion during elective surgeries

2015 ◽  
Vol 5 (1) ◽  
pp. 23-27
Author(s):  
H R Rehman ◽  
I Hassan ◽  
T Hussain ◽  
A A Mir ◽  
M Zahid
Keyword(s):  
Laryngeal Mask Airway ◽  
Laryngeal Mask ◽  
Laryngeal Mask Airway Insertion ◽  
Cough Reflex ◽  
Laryngeal Mask Insertion ◽  
Group A ◽  
Gag Reflex ◽  
The Difference ◽  
Hospital Ethics ◽  
Group B

This study was conducted in the Department of Anesthesiology, Holy Family Hospital Rawalpindi from 5 October 2011 to 5 April 2012 after approval of hospital ethics committee. Three hundred and eighteen patients fulfilling the inclusion criteria were selected in the study by non-probability consecutive sampling after taking informed written consent. Patients between the ages of 20 to 40 years were included, belonging to ASA class I and II, requiring General Anesthesia with Laryngeal Mask Airway for different surgical procedures. They were divided into two equal groups by computer generated random numbers. Group A comprised of one hundred and fifty eight patients in whom intravenous propofol was given for induction of anesthesia and Laryngeal mask insertion. Group B comprised of one hundred and fifty eight patients in whom inhalational induction with sevoflurane was done for Laryngeal mask insertion. Conduct of anesthesia was maintained similar in both groups. Cough and gag reflexes were observed in both groups at the time of Laryngeal mask insertion. Drug under study was said to be effective, if it is associated with no cough and gag reflex during Laryngeal mask insertion. All the data was analyzed by SPSS version 15. It was observed that 6.3% patients of group A (propofol) had positive cough reflex as compare to 13.2%% patients of group B (sevoflurane). The difference was statistically significant (p=0.038). While the incidence of gag reflex in group A was 8.2% and group B was 14.5%. But the difference was not found to be statistically significant (p=0.077). Propofol is more effective than sevoflurane for smooth LMA insertion during elective surgeries.DOI: http://dx.doi.org/10.3126/jcmc.v5i1.12562

scholarly journals Gum-elastic Bougie-guided Insertion of the ProSeal™ Laryngeal Mask Airway: A New Technique

2002 ◽  
Vol 30 (5) ◽  
pp. 624-627 ◽  
Author(s):  
A. Howath ◽  
J. Brimacombe ◽  
C. Keller
Keyword(s):  
Laryngeal Mask Airway ◽  
Gastric Tube ◽  
Cardiovascular Responses ◽  
Laryngeal Mask ◽  
Drainage Tube ◽  
Leak Pressure ◽  
Success Rates ◽  
Tube Insertion ◽  
Oropharyngeal Leak Pressure ◽  
Low Incidence

We determined the success rates, cardiovascular responses and airway morbidity for gum-elastic bougie-guided insertion of the ProSeal™ laryngeal mask airway. One hundred anaesthetized, non-paralyzed adults (ASA 1–2, aged 18 to 80 years) were studied. The ProSeal LMA drainage tube was primed with a well-lubricated 16 French gauge gum-elastic bougie with the curved end proximal and the straight end protruding 30 cm beyond the drainage tube tip. The straight end of the gum-elastic bougie was inserted into the oesophagus under laryngoscopic guidance, the laryngoscope removed and the ProSeal LMA inserted using the standard insertion technique and the gum-elastic bougie as a guide. The following variables were recorded: ease of insertion, oropharyngeal leak pressure, ventilatory capability, ease of gastric tube insertion, blood staining on the bougie or LMA at removal, and postoperative airway morbidity. Haemodynamic data were recorded immediately pre-insertion and every minute for five minutes after insertion. Gum-elastic bougie and ProSeal LMA insertion was successful at the first attempt in all patients within 50 seconds. There were no significant increases in heart rate or blood pressure. Oropharyngeal leak pressure was 33 (17–40) cmH 2 O and ventilation was possible without leak in all patients at 9.5 ml.kg –1 tidal volume. There were no drainage tube or gastric air leaks. Gastric tube insertion was successful at the first attempt in all patients. Blood staining at removal was not detected on the gum-elastic bougie, but was detected in 3% of ProSeal LMAs. The incidence of sore throat, dysphagia and dysarthria was 21%, 9% and 1% respectively. We conclude that gum-elastic bougie-guided insertion of the ProSeal LMA has a high success rate and is associated with minimal haemodynamic change and a low incidence of trauma.

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