ProSeal laryngeal mask protects against aspiration of fluid in the pharynx

Evans, N.R.; Gardner, Susan; James, M. F. M.

doi:10.1093/bja/88.4.584

Cited by 51 publications

(5 citation statements)

References 4 publications

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“…Thirdly, during dye installation the airways were continuously observed fiberoptically. As leakage of the fluid seal has been observed in 2% (Evans et al [12]) and 5% (this study) the latter protocol may represent a potentially safer approach in order to avoid accidental aspiration of dye.…”

Section: Discussionmentioning

confidence: 55%

“…Evens et al instilled stained saline into the drainage tube of the PLMA in order to investigate the ability of the device to protect the airway against fluids [12]. We combined the dye instillation through the drainage tube with a modification of the method previously described by Lallo et al who stained the gastric contents with methylene blue [13].…”

Section: Discussionmentioning

confidence: 99%

“…Interestingly, the approach to instil dye into the drainage tube, to the best of our knowledge first and solely described by Evens et al [12] has not been used in other investigations. In contrast to Evans at al.…”

Section: Discussionmentioning

confidence: 99%

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Investigating the Fluid Seal of Supraglottic Airway Devices in Humans Using Indicator Dye via the Drainage Tube: A Potential Roadmap for Future Studies

Russo¹,

Cremer²,

Mühlhäuser³

et al. 2012

OJAnes

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Background: The fluid seal of supraglottic airway devices (SGA) protects the airway from fluid contamination. We evaluated the suitability of indicator dye placement in the upper digestive tract of anesthetized patients combined with fiberoptical tracing to investigate the fluid seal of SGA. Methods: Patients swallowed a capsule of indigo carmine green (ICG) prior to induction of anaesthesia. After induction of anesthesia, one of two different SGA (either an i-Gel™ or an LMA-Supreme™ (LMA-S)) was inserted after randomization. Methylene blue stained normal saline was injected through the proximal opening of drainage tube during mechanical ventilation as well as spontaneous breathing. We monitored regurgitation of ICG with a flexible fiberscope (FO) inserted through the drainage tube and checked for the appearance of methylene blue in the mask bowl with the FO inserted through the airway tube. Results: In thirty-six patients with an i-Gel™ and 37 with a LMA-S no regurgitation of ICG was observed at the level of the upper oesophageal sphincter (UES). Methylene blue stained saline was not visible in any patient during pressure-controlled ventilation, but was detected in two of the 36 patients with the i-Gel™ during spontaneous breathing. Conclusion: Instilling dye through the drainage tube of SGA models with a built-in drainage tube represents a useful method to examine and to compare the fluid seal of different SGA. Our protocol presented in this study proved to be an easy and reproducible approach for future studies. Furthermore, the clinical results gained during this evaluation highlight the necessity for further investigations regarding the fluid seal competencies of SGAs in humans under clinical conditions.

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Section: Discussionmentioning

confidence: 55%

Section: Discussionmentioning

confidence: 99%

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Investigating the Fluid Seal of Supraglottic Airway Devices in Humans Using Indicator Dye via the Drainage Tube: A Potential Roadmap for Future Studies

Russo¹,

Cremer²,

Mühlhäuser³

et al. 2012

OJAnes

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“…an additional drain tube running parallel to a reinforced airway tube. This permits access to gastrointestinal tract and aids nasogastric tube (NTG) insertion which isolates alimentary tract from respiratory tract & hence provides additional protection against regurgitation 4 .The double cuff provides a better seal around the glottis at lower mucosal pressures, thus providing an option of administering intermittent positive pressure ventilation. The built-in bite-block reduces the chances of damage to the device by inadvertent biting by the teeth of the patient and danger of obstruction.…”

Section: Introductionmentioning

confidence: 99%

Randomized comparative study between ProSeal laryngeal mask airway (PLMA) and Endotracheal tube (ETT) for airway management in laparoscopic cholecystectomy under general anesthesia

Bhardwaj¹

2019

jmscr

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Background: The anesthetic technique employed in laparoscopic procedures offers many challenges and is limited most frequently to general anesthesia with controlled ventilation. Till date cuffed endotracheal tube is being considered ideal for such procedures but lesser invasive devices like PLMA are being successfully used nowadays. Aims: The present study was conducted to compare PLMA and ETT for airway management in laparoscopy cholecystectomy under general anesthesia. Material and Methods: The clinical trial included 50 patients scheduled for elective laparoscopy cholecystectomy. The ethical committee clearance and written consent were taken and patients were randomly allocated to either PLMA or ETT group. Insertion characteristics of PLMA and ETT and of nasogastric tube (NGT) via PLMA and ETT were noted. Hemodynamic responses, intra-operative as well as postoperative complications were also compared in both the groups. Results: There was no demographic difference. The difference in insertion attempts as well as the time taken for insertion was significantly less in PLMA group than ETT group. We observed that HR,SBP, DBP, MAP values were comparable at all intervals except for those after insertion. There was no case of regurgitation or aspiration noted in any of the patients in each group. Post-operative complications were mainly seen in ETT group with no statistical difference. Conclusion: PLMA and ETT show similar efficacy during laparoscopy cholecystectomy under general anesthesia and so PLMA is an efficient and safe tool for airway management.

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“…Laryngeal mask airway (LMA) Proseal is the modification of LMA classic and has been extensively studied. [ 1 2 ] Laryngeal tube suction (LTS) is a newer version of the laryngeal tube that was introduced mainly for prehospital emergencies. [ 3 4 ] It shares certain features of Proseal LMA, i.e., esophageal suction port for gastric decompression.…”

Section: Introductionmentioning

confidence: 99%

Effectiveness of Proseal laryngeal mask airway and laryngeal tube suction in elective non-laparoscopic surgeries of up to ninety minutes duration: A prospective, randomized study

Verma

Sharma

2018

J Anaesthesiol Clin Pharmacol

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ProSeal laryngeal mask protects against aspiration of fluid in the pharynx

Abstract: The PLMA can be positioned reliably. It can isolate the airway from fluid in the hypopharynx.

Cited by 51 publications

References 4 publications

Investigating the Fluid Seal of Supraglottic Airway Devices in Humans Using Indicator Dye via the Drainage Tube: A Potential Roadmap for Future Studies

Investigating the Fluid Seal of Supraglottic Airway Devices in Humans Using Indicator Dye via the Drainage Tube: A Potential Roadmap for Future Studies

Randomized comparative study between ProSeal laryngeal mask airway (PLMA) and Endotracheal tube (ETT) for airway management in laparoscopic cholecystectomy under general anesthesia

Effectiveness of Proseal laryngeal mask airway and laryngeal tube suction in elective non-laparoscopic surgeries of up to ninety minutes duration: A prospective, randomized study

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