Comparison of End-Tidal and Arterial Carbon Dioxide in Infants Using Laryngeal Mask Airway and Endotracheal Tube

1997 ◽  
Vol 84 (1) ◽  
pp. 51-53 ◽  
Author(s):  
Ashwani K. Chhibber ◽  
Kenneth Fickling ◽  
Jeffrey W. Kolano ◽  
William A. Roberts
Keyword(s):  
Carbon Dioxide ◽  
Laryngeal Mask Airway ◽  
Endotracheal Tube ◽  
Laryngeal Mask ◽  
Arterial Carbon Dioxide ◽  
End Tidal

Comparison of End-Tidal and Arterial Carbon Dioxide in Infants Using Laryngeal Mask Airway and Endotracheal Tube

1997 ◽  
Vol 84 (1) ◽  
pp. 51-53 ◽  
Author(s):  
Ashwani K. Chhibber ◽  
Kenneth Fickling ◽  
Jeffrey W. Kolano ◽  
William A. Roberts
Keyword(s):  
Carbon Dioxide ◽  
Laryngeal Mask Airway ◽  
Endotracheal Tube ◽  
Laryngeal Mask ◽  
Arterial Carbon Dioxide ◽  
End Tidal

scholarly journals Laryngeal mask airway versus endotracheal tube for airway management during laparoscopic percutaneous extraperitoneal closure for inguinal hernia in pediatric day surgery: a retrospective analysis

2021 ◽  
Author(s):  
Tamaki Iwade ◽  
Koichi Ohno
Keyword(s):  
Carbon Dioxide ◽  
Inguinal Hernia ◽  
Laryngeal Mask Airway ◽  
Airway Management ◽  
Endotracheal Tube ◽  
Bispectral Index ◽  
Laryngeal Mask ◽  
Group I ◽  
End Tidal Carbon Dioxide ◽  
End Tidal

Abstract BackgroundAlthough endotracheal tube is preferred for airway management during laparoscopic percutaneous extraperitoneal closure for inguinal hernias, laryngeal mask airway may also be used. However, few studies have reported the usefulness of laryngeal mask airway during laparoscopic percutaneous extraperitoneal closure. Our study aims to report the advantages of laryngeal mask airway versus endotracheal tube during laparoscopic percutaneous extraperitoneal closure for inguinal hernia in pediatric day surgery.MethodsThe records of 56 patients (Group I, endotracheal tube; Group II, laryngeal mask airway) treated for inguinal hernia using laparoscopic percutaneous extraperitoneal closure between November 2018 and December 2019 were retrospectively reviewed. The duration of anesthesia; changes in hemodynamics (heart rate and systolic/diastolic blood pressure), end-tidal carbon dioxide, and bispectral index; and postoperative complications were analyzed.ResultsGroups I and II had 39 and 17 patients, respectively. The duration of anesthesia and surgery and changes in hemodynamics and bispectral index were similar between the two groups. Induction and recovery times were significantly shorter and changes in end-tidal carbon dioxide were more significant in Group II (p < 0.05). The incidence of sore throat and nausea was higher in Group I (p < 0.05).ConclusionsLaryngeal mask airway was equivalent to endotracheal tube in terms of performance during laparoscopic percutaneous extraperitoneal closure, although induction and recovery were achieved sooner in laryngeal mask airway, with a lower incidence of sore throat and nausea.Trial RegistrationNot applicable

scholarly journals Second-generation laryngeal mask airway as an alternative to endotracheal tube during prolonged laparoscopic abdominal surgery: a comparative analysis of intraoperative gas exchanges

2021 ◽  
Author(s):  
S Park ◽  
JE Lee ◽  
GS Choi ◽  
JM Kim ◽  
JS Ko ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Gas Exchange ◽  
Laryngeal Mask Airway ◽  
Abdominal Surgery ◽  
Partial Pressure ◽  
Endotracheal Tube ◽  
Second Generation ◽  
Laryngeal Mask ◽  
Arterial Partial Pressure ◽  
Prolonged Surgery

Introduction: Despite several advantages over endotracheal tube (ETT), laryngeal mask airway (LMA), which is used in emergencies under difficult airway maintenance conditions, is rarely utilized in prolonged surgery. We compared the variables representing intraoperative gas exchange with second-generation LMA and ETT during prolonged laparoscopic abdominal surgery. Methods: Prolonged surgery was defined as a surgery lasting more than 2 h. In total, 394 patients who underwent laparoscopic liver resection via either second-generation LMA or ETT were retrospectively analysed. Parameters including end-tidal pressure of carbon dioxide (ETCO2), tidal volume (TV), respiratory rate (RR), peak inspiratory pressure (PIP), arterial partial pressure of carbon dioxide (PaCO2), pH, and ratio of arterial partial pressure of oxygen to fractional inspired oxygen (PFR) during surgery were compared between the two groups. In addition, the incidence of postoperative pulmonary complications (PPC) including pulmonary aspiration was also compared. Results: The values of ETCO2, TV, RR and PIP during pneumoperitoneum were comparable between the two groups. Although PaCO2 at 2 h after induction was higher in patients with LMA (40.5 vs. 38.5 mmHg, p < 0.001), the pH and PFR values of the two groups were comparable. The incidence of PPC was not different. Conclusion: During prolonged laparoscopic abdominal surgery, the second-generation LMA facilitates adequate intraoperative gas exchange and represents an alternative to ETT.

Endotracheal Intubation, but Not Laryngeal Mask Airway Insertion, Produces Reversible Bronchoconstriction 

1999 ◽  
Vol 90 (2) ◽  
pp. 391-394 ◽  
Author(s):  
Eun S. Kim ◽  
Michael J. Bishop
Keyword(s):  
Laryngeal Mask Airway ◽  
Endotracheal Tube ◽  
Respiratory System ◽  
Laryngeal Mask ◽  
Laryngeal Mask Airway Insertion ◽  
Women Patients ◽  
Inhalation Anesthesia ◽  
Endotracheal Tubes ◽  
Respiratory System Resistance ◽  
End Tidal

Background Tracheal intubation frequently results in an increase in respiratory system resistance that can be reversed by inhaled bronchodilators. The authors hypothesized that insertion of a laryngeal mask airway would be less likely to result in reversible bronchoconstriction than would insertion of an endotracheal tube. Methods Fifty-two (45 men, 7 women) patients were randomized to receive a 7.5-mm (women) or 8-mm (men) endotracheal tube or a No. 4 (women) or No. 5 (men) laryngeal mask airway. Anesthesia was induced with 2 microg/kg fentanyl and 5 mg/kg thiopental, and airway placement was facilitated with 1 mg/kg succinylcholine. When a seal to more than 20 cm water was verified, respiratory system resistance was measured immediately after airway placement. Inhalation anesthesia was begun with isoflurane to achieve an end-tidal concentration of 1% for 10 min. Respiratory system resistance was measured again during identical conditions. Results Among patients receiving laryngeal mask airways, the initial respiratory system resistance was significantly less than among patients with endotracheal tubes (9.2+/-3.3 cm water x 1(-1) x s(-1) [mean +/- SD] compared with 13.4+/-9.6 cm water x 1(-1) x s(-1); P &lt; 0.05). After 10 min of isoflurane, the resistance decreased to 8.6+/-3.6 cm water x 1(-1) x s(-1) in the endotracheal tube group but remained unchanged at 9.1+/-3.3 cm water x 1(-1) x s(-1) in the laryngeal mask airway group. The decrease in respiratory system resistance in the endotracheal tube group of 4.7+/-7 cm water x 1(-1) x s(-1) was highly significant compared with the lack of change in the laryngeal mask airway group (P &lt; 0.01). Conclusions Resistance decreased rapidly only in patients with endotracheal tubes after they received isoflurane, a potent bronchodilator, suggesting that reversible bronchoconstriction was present in patients with endotracheal tubes but not in those with laryngeal mask airways. A laryngeal mask airway is a better choice of airway to minimize airway reaction.

scholarly journals A Comparison between a Two Person Insertion Technique of Laryngeal Mask Airway and the Classic One Person Technique

2013 ◽  
Vol 2 (4) ◽  
pp. 179-182
Author(s):  
Asef Parviz Kazemi ◽  
Mohammad Ali Daneshforooz ◽  
Shahriar Omidvari
Keyword(s):  
Carbon Dioxide ◽  
Laryngeal Mask Airway ◽  
Mouth Opening ◽  
Laryngeal Mask ◽  
New Technique ◽  
P Value ◽  
Classic Method ◽  
Carbon Dioxide Pressure ◽  
End Tidal ◽  
Rate Of Success

Background: Various studies are seeking to find new methods to improve techniques of laryngeal mask airway (LMA) insertion and reduce possible complications. In this study, we embarked on a clinical study to investigate the advantages of a new insertion method of laryngeal mask and to compare it with the classic method.Materials and Methods: Two hundred patients aged 20-60 years old in 2012 were randomly divided into two groups allocated to receive either the new technique of insertion of LMA (two-person method) or the classic method (one-person method). In the two person method, jaw thrust and mouth opening is done by a technician and then anesthesiologist inserts the LMA. Oxygen saturation, time to insert laryngeal mask, end-tidal carbon dioxide pressure, and the ease of insertion in both groups were measured. The collected data were analyzed by using ANOVA test. P-value< 0.05 was considered as statistically significant.Results: The measured end-tidal pressure of carbon dioxide (ETCO2) and saturation of O2 were 31.68 mmHg and 98.87 % in the classic method and 30.47 mmHg and 99.42 % in the two-person method, respectively. These differences were statistically significant for both values. However, the discrepancy of insertion time and ease of insertion between the two groups were not statistically considerable.Conclusion: The new technique introduced in this study is associated with higher rate of success, as evidenced by enhancement of saturation of O2 and reduction of ETCO2. Therefore, this method could be considered as a safe and effective method in order to establish a secure airway in anesthetized patients in future studies.

Laryngeal mask airway and tracheal tube insertion by unskilled personnel

1991 ◽  
Vol 77 (1) ◽  
pp. 21-25
Author(s):  
P. R. F. Davies ◽  
S. Q. M. Tighe ◽  
G. L. Greenslade ◽  
G. H. Evans
Keyword(s):  
Carbon Dioxide ◽  
Laryngeal Mask Airway ◽  
Tracheal Tube ◽  
Random Order ◽  
Training Programme ◽  
Laryngeal Mask ◽  
Tube Insertion ◽  
Airway Intervention ◽  
Lung Expansion ◽  
End Tidal

AbstractAfter a short training programme 11 naval medical trainees inserted a laryngeal mask airway (LMA) and a tracheal tube (ETT) in random order in a total of 110 anaesthetized patients. They were allowed 40 seconds for each attempt. Success was defined as the detection of expired carbon dioxide within 40 seconds of Guedel airway removal which subsequently rose to an end-tidal value of at least 4 kPa, together with satisfactory lung expansion and ventilation, without other airway intervention by the anaesthetist. One hundred and four LMA insertions were successful compared with 56 ETTs (p<0.01). All first attempts at LMA insertion were successful, whereas satisfactory ETT placement was progressive. Insertion was also quicker with the LMA (20 seconds) than with the ETT (35 seconds) (p<0.01). Further studies are indicated to assess the value of the LMA in emergencies.

Sign in / Sign up

Export Citation Format

Share Document