Document Detail

Hemodynamic responses and upper airway morbidity following tracheal intubation in patients with hypertension: conventional laryngoscopy versus an intubating laryngeal mask airway.
MedLine Citation:
PMID:  22249480     Owner:  NLM     Status:  MEDLINE    
OBJECTIVES: We compared hemodynamic responses and upper airway morbidity following tracheal intubation via conventional laryngoscopy or intubating laryngeal mask airway in hypertensive patients.
METHODS: Forty-two hypertensive patients received a conventional laryngoscopy or were intubated with a intubating laryngeal mask airway. Anesthesia was induced with propofol, fentanyl, and cis-atracurium. Measurements of systolic and diastolic blood pressures, heart rate, rate pressure product, and ST segment changes were made at baseline, preintubation, and every minute for the first 5 min following intubation. The number of intubation attempts, the duration of intubation, and airway complications were recorded.
RESULTS: The intubation time was shorter in the conventional laryngoscopy group than in the intubating laryngeal mask airway group (16.33 ± 10.8 vs. 43.04 ± 19.8 s, respectively) (p<0.001). The systolic and diastolic blood pressures in the intubating laryngeal mask airway group were higher than those in the conventional laryngoscopy group at 1 and 2 min following intubation (p<0.05). The rate pressure product values (heart rate x systolic blood pressure) at 1 and 2 min following intubation in the intubating laryngeal mask airway group (15970.90 ± 3750 and 13936.76 ± 2729, respectively) were higher than those in the conventional laryngoscopy group (13237.61 ± 3413 and 11937.52 ± 3160, respectively) (p<0.05). There were no differences in ST depression or elevation between the groups. The maximum ST changes compared with baseline values were not significant between the groups (conventional laryngoscopy group: 0.328 mm versus intubating laryngeal mask airway group: 0.357 mm; p = 0.754). The number and type of airway complications were similar between the groups.
CONCLUSION: The intense and repeated oropharyngeal and tracheal stimulation resulting from intubating laryngeal mask airway induces greater pressor responses than does stimulation resulting from conventional laryngoscopy in hypertensive patients. As ST changes and upper airway morbidity are similar between the two techniques, conventional laryngoscopy, which is rapid and safe to perform, may be preferred in hypertensive patients with normal airways.
Elif Bengi Sener; Emre Ustun; Burcu Ustun; Binnur Sarihasan
Publication Detail:
Type:  Journal Article; Randomized Controlled Trial    
Journal Detail:
Title:  Clinics (São Paulo, Brazil)     Volume:  67     ISSN:  1980-5322     ISO Abbreviation:  Clinics (Sao Paulo)     Publication Date:  2012  
Date Detail:
Created Date:  2012-01-17     Completed Date:  2012-09-19     Revised Date:  2013-06-26    
Medline Journal Info:
Nlm Unique ID:  101244734     Medline TA:  Clinics (Sao Paulo)     Country:  Brazil    
Other Details:
Languages:  eng     Pagination:  49-54     Citation Subset:  IM    
Ondokuz Mayis University, Faculty of Medicine, Department of Anesthesiology, Kurupelit/Samsun, Turkey.
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MeSH Terms
Airway Obstruction / epidemiology*,  etiology
Blood Pressure / physiology
Heart Rate / physiology
Hemodynamics / physiology*
Hypertension / physiopathology*,  therapy
Intubation, Intratracheal / adverse effects*,  methods
Laryngeal Masks / adverse effects*
Laryngoscopy / adverse effects*,  methods
Middle Aged
Prospective Studies
Statistics, Nonparametric
Time Factors

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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