scholarly journals Circulatory responses to laryngeal mask airway insertion or tracheal intubation in normotensive and hypertensive patients

1995 ◽  
Vol 42 (1) ◽  
pp. 32-36 ◽  
Author(s):  
Yoshitaka Fujii ◽  
Hiroyoshi Tanaka ◽  
Hidenori Toyooka
Keyword(s):  
Laryngeal Mask Airway ◽  
Tracheal Intubation ◽  
Laryngeal Mask ◽  
Laryngeal Mask Airway Insertion ◽  
Hypertensive Patients

scholarly journals The Comparison of Hemodynamic Responses Following Laryngeal Mask Airway Insertion Versus Tracheal Intubation in Hypertensive Patients Scheduled for Elective Ophthalmic Surgery Under General Anesthesia

2019 ◽  
Author(s):  
Mehdi Sanatkar ◽  
Mehrdad Goudarzi ◽  
Alireza Ebrahim Soltani
Keyword(s):  
Heart Rate ◽  
Laryngeal Mask Airway ◽  
Tracheal Intubation ◽  
General Anesthesia ◽  
Endotracheal Intubation ◽  
Laryngeal Mask ◽  
Laryngeal Mask Airway Insertion ◽  
Ophthalmic Surgery ◽  
Hypertensive Patients ◽  
St Segment

 We compared hemodynamic responses following laryngeal mask airway insertion versus tracheal intubation in hypertensive patients who were scheduled for elective ophthalmic surgery under general anesthesia. We studied 48 controlled hypertensive patients that were randomly divided into two groups (n=24) for insertion of laryngeal mask airway (LMA) and endotracheal intubation (EI). The mean arterial blood pressure (MAP), heart rate, rate pressure product (RPP), and ST-segment changes were recorded preoperatively, immediately preintubation and 1, 3, and 5 minutes after LMA insertion or tracheal intubation in all patients and compared between two groups. There was a reduction in MAP after induction and immediately preintubation in all of patients of both groups (P<0.05). The MAP, heart rate and RPP increased immediately after both LMA insertion and tracheal intubation (P<0.05). The elevation of MAP and RPP were maintained for longer time in intubation group versus LMA group (P<0.05). There was no difference between the groups with respect to ST-segment variation. The incidence of airway injury was similar between two groups. The laryngeal mask airway insertion may be preferable to endotracheal intubation in hypertensive patients where attenuation of hemodynamic stress response is desired. © 2019 Tehran University of Medical Sciences. All rights reserved. Acta Med Iran 2019;57(5):289-294.

End-tidal Sevoflurane Concentrations for Laryngeal Mask Airway Insertion and for Tracheal Intubation in Children

1994 ◽  
Vol 81 (3) ◽  
pp. 628-631 ◽  
Author(s):  
Masakazu Taguchi ◽  
Seiji Watanabe ◽  
Nobuaki Asakura ◽  
Shinichi Inomata
Keyword(s):  
Laryngeal Mask Airway ◽  
Tracheal Intubation ◽  
Laryngeal Mask ◽  
Laryngeal Mask Airway Insertion ◽  
End Tidal

Antichemical Protective Gear Prolongs Time to Successful Airway Management

2004 ◽  
Vol 100 (2) ◽  
pp. 260-266 ◽  
Author(s):  
Ron Flaishon ◽  
Alexander Sotman ◽  
Ron Ben-Abraham ◽  
Valery Rudick ◽  
David Varssano ◽  
...  
Keyword(s):  
Laryngeal Mask Airway ◽  
Tracheal Intubation ◽  
Airway Management ◽  
Mass Casualty ◽  
Laryngeal Mask ◽  
Laryngeal Mask Airway Insertion ◽  
Laryngeal Masks ◽  
Airway Control ◽  
Protective Gear ◽  
The Mean

Background Airway management is the first step in resuscitation. The extraordinary conditions in mass casualty situations impose special difficulties in airway management, even for experienced caregivers. The authors evaluated whether wearing surgical attire or antichemical protective gear made any difference in anesthetists' success of airway control with either an endotracheal tube or a laryngeal mask airway. Methods Fifteen anesthetists with 2-5 yr of residency and wearing either full antichemical protective gear or surgical attire intubated or inserted laryngeal masks in 60 anesthetized patients. The study was performed in a prospective, randomized, crossover manner. The duration of intubation/insertion was measured from the time the device was grasped to the time a normal capnography recording was obtained. Results Endotracheal tubes were introduced significantly (P &lt; 0.01) faster when the anesthetist wore surgical attire (31 +/- 7 vs. 54 +/- 24 s for protective gear), but the mean times necessary to successfully insert laryngeal masks were similar (44 +/- 20 s for surgical attire vs. 39 +/- 11 s for protective gear). Neither performance failure nor incidences of hypoxemia were recorded. Conclusions This first report in humans shows to what extent anesthetists' wearing of antichemical protective gear slows the time to intubate but not to insert a laryngeal mask airway compared with wearing surgical attire. Laryngeal mask airway insertion is faster than tracheal intubation when wearing protective gear, indicating its advantage for airway management when anesthetists wear antichemical protective gear. If chances for rapid and successful tracheal intubation under such chaotic conditions are poor, laryngeal mask airway insertion is a viable choice for airway management until a proper secured airway is obtainable.

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