ProSeal Laryngeal Mask Airway (proseal + laryngeal_mask_airway)

Distribution by Scientific Domains

Selected Abstracts

Tracheal intubation and alternative airway management devices used by healthcare professionals with different level of pre-existing skills: a manikin study,

ANAESTHESIA, Issue 5 2009
B. M. Wahlen
Summary The classic Laryngeal Mask Airway (cLMAÔ), ProSeal Laryngeal Mask Airway (PLMAÔ), Intubating Laryngeal Mask AirwayÔ (ILMAÔ), Combitube (CTÔ), Laryngeal Tube (LTÔ) and tracheal intubation (TI) were compared in a manikin study. Nurses, anaesthetic nurses, paramedics, physicians and anaesthetists inserted the devices three times in a randomised sequence. Time taken for successful insertion, success rates and ease of insertion were evaluated. Anaesthetists performed tracheal intubation significantly faster than other healthcare professionals (p < 0.05). Insertion times for the cLMA, PLMA, LT and CT were not significantly different between the groups. Insertion of the CT, ILMA and TI was associated with a significant learning effect in all groups. This was not observed with the cLMA, PLMA or LT. All non-anaesthetists were able to insert the cLMA, PLMA and LT within two attempts with a > 90% success rate on the first attempt. The ILMA and TI were the only devices where more than one subject experienced some difficulty in insertion. The cLMA, PLMA and LT should be evaluated for use in situations where only limited airway training is possible. [source]

The rotational technique with ProSeal laryngeal mask airway does not improve the ease of insertion in children

Kazuhiro Watanabe MD
No abstract is available for this article. [source]

ProSealTM laryngeal mask airway in 120 pediatric surgical patients: a prospective evaluation of characteristics and performance

Summary Background:, The ProSealTM LMA (PLMATM) has recently been introduced in pediatric sizes (1.5, 2, 2.5, 3). Limited pediatric data have been published. Methods:, After Institutional Review Board (IRB) approval, the PLMATM was placed in 120 children aged 4 months to 13 years (5,50 kg). The following data were collected prospectively: induction agent, number of placement attempts (limited to three), placement success or failure, PLMATM size, leak pressure, ventilatory pattern [spontaneous (SV) or controlled positive pressure ventilation (PPV)], success or failure of gastric suction tube placement, hypoxemia, dislodgement, laryngospasm, bronchospasm, aspiration, and traumatic placement. Results:, The PLMATM was easily placed in children with a higher first attempt success rate (94%) than reported for adults. Overall PLMATM and gastric tube placement were both 100% successful. Leak pressures were similar to those reported for the PLMATM in adults and higher than reported for the ClassicTM LMATM in children. No bronchospasm, laryngospasm, hypoxemia, dislodgement, or aspiration occurred. Conclusions:, Although the PLMATM can be used with SV or PPV, the higher leak pressure achieved with the PLMATM, and the ability to evacuate fluid and air from the stomach suggest that it may be a useful alternative to tracheal intubation for procedures in which PPV is desired in children aged 4 months to 13 years. [source]

Prevention of aspiration under general anesthesia by use of the size 2½ ProSealTM laryngeal mask airway in a 6-year-old boy: a case report

Summary We report a case where use of the size 2 ProSealTM laryngeal mask airway helped to prevent pulmonary aspiration of regurgitated gastric fluid. We describe the management of this case and discuss the potential advantages of this modified laryngeal mask airway for supraglottic airway management in pediatric patients. [source]

Airway protection with the ProSealTM laryngeal mask airway in a child

Summary We describe a case where a size 2 ProSealTM laryngeal mask airway successfully channelled regurgitated fluid away from the respiratory tract in a 5-year-old child following an inguinal hernia repair. [source]

Ketamine or alfentanil administration prior to propofol anaesthesia: the effects on ProSealÔ laryngeal mask airway insertion conditions and haemodynamic changes in children

ANAESTHESIA, Issue 3 2009
Z. Begec
Summary This study was designed to compare the effects of ketamine and alfentanil administered prior to induction of anaesthesia with propofol, on the haemodynamic changes and ProSeal laryngeal mask airway® (PLMA) insertion conditions in children. Eighty children, aged between 3,132 months, were randomly allocated to receive either alfentanil 20 ,,1 (alfentanil group) or ketamine 0.5,1 (ketamine group) before induction of anaesthesia. Ninety seconds following the administration of propofol 4,1, a PLMA was inserted. In the ketamine group, heart rate and mean arterial pressure were higher during the study period compared with the alfentanil group (p < 0.05). The time for the return of spontaneous ventilation was prolonged in the alfentanil group (p = 0.004). In conclusion, we found that the administration of ketamine 0.5,1 with propofol 4,1 preserved haemodynamic stability, and reduced the time to the return of spontaneous ventilation, compared with alfentanil 20 ,,1 during PLMA placement. In addition, the conditions for insertion of the PLMA with ketamine were similar to those found with alfentanil. [source]

A case series of the use of the ProSeal laryngeal mask airway in emergency lower abdominal surgery

ANAESTHESIA, Issue 9 2008
J. Fabregat-López
Summary The ProSeal laryngeal mask airway (PLMA) has been used routinely for anaesthesia and for difficult airway management including airway rescue in non-fasted patients. Compared with the classic laryngeal mask airway the PLMA increases protection against gastric inflation and pulmonary aspiration, by separating the respiratory and gastro-intestinal tracts. The PLMA has potential advantages over use of the tracheal tube including smoother recovery, reduced pharyngolaryngeal morbidity and even reduced postoperative pain. We report a series of patients scheduled for emergency appendicectomy, without other risk factors for regurgitation, managed with the PLMA. Anaesthesia was induced and maintained with remifentanil, target controlled propofol and rocuronium. A series of 102 cases were managed without complications and high rates of first time placement of the PLMA (inserted over a suction tube placed in the oesophagus). With careful patient selection the PLMA may offer an alternative airway for use by experienced anaesthetists in patients undergoing minor lower abdominal surgery. [source]

Use of ProSeal laryngeal mask airway as a dedicated airway for fibreoptic-guided tracheal intubation

ANAESTHESIA, Issue 2 2006
J. Cranshaw
No abstract is available for this article. [source]

A cohort evaluation of the pediatric ProsealÔ laryngeal mask airway in 100 unpremedicated children

Michelle White
No abstract is available for this article. [source]

Resistive load of laryngeal mask airway and proseal laryngeal mask airway in mechanically ventilated patients

G. Natalini
Background:, The ProSeal Laryngeal Mask Airway (PLMA) ventilation tube is narrower and shorter than the standard Laryngeal Mask Airway (LMA) and is without the vertical bars at the end of the tube. In this randomized, crossover study, PLMA and LMA resistances were compared. Methods:, Respiratory mechanics was calculated in 26 anesthetized, mechanically ventilated patients with both LMA and PLMA. The laryngeal mask positioning was fiberoptically evaluated. Differences in the respiratory mechanics of the LMA and the PLMA were attributed to the differences between the laryngeal masks. Results:, In the total study population the airway resistance was 1.5 ± 2.6 hPa.l,1.s,1 (P = 0.005) higher with the PLMA than with the LMA. During the PLMA use, the peak expiratory flow reduced by 0.02 ± 0.05 l min,1 (P = 0.046), the expiratory resistance increased by 0.6 ± 1.3 hPa.l,1.s,1 (P = 0.022), and the time constant of respiratory system lengthened by 0.09 ± 0.18 s (P = 0.023). These differences doubled when the LMA was better positioned than the PLMA, whereas they disappeared when the PLMA was positioned better than the LMA. Conclusions:, The standard LMA offers a lower resistive load than the PLMA. Moreover, the fitting between the laryngeal masks and the larynx, as fiberoptically evaluated, plays a major role in determining the resistive properties of these devices. [source]