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Comparative study of hemodynamic responses to orotracheal intubation with intubating laryngeal mask airway.
Chin Med J (Engl). 2006 Jun 05; 119(11):899-904.CM

Abstract

BACKGROUND

Intubating laryngeal mask airway (ILMA) offers a new approach for orotracheal intubation and is expected to produce less cardiovascular stress responses. However, the available studies provide inconsistent results. The purpose of this study was to identify whether there is a clinically relevant difference in hemodynamic responses to orotracheal intubation by using ILMA and direct laryngoscope (DLS).

METHODS

A total of 53 adult patients, ASA physical status I-II, scheduled for elective plastic surgery under general anesthesia requiring the orotracheal intubation, were randomly allocated to either DLS or ILMA groups. After a standard intravenous anesthesia induction, orotracheal intubation was performed. Noninvasive blood pressure and heart rate were recorded before (baseline values) and after anesthesia induction (post-induction values), at intubation and every minute for the first 5 minutes after intubation. The data were analyzed using Chi-square test, paired and unpaired Student's t test, and repeated-measures analysis of variance as appropriate.

RESULTS

The mean intubation time in the ILMA group was longer than that in the DLS group (P < 0.05). The blood pressure and heart rate increased significantly after intubation in the two groups compared to the post-induction values (P < 0.05), but the maximum value of blood pressure during the observation did not exceed the baseline value, while the maximum value of heart rate was higher than the baseline (P < 0.05). During the observation, there were no significant differences in blood pressure and heart rate among each time point and in the maximum values between the two groups.

CONCLUSIONS

Orotracheal intubations by using ILMA and DLS produce similar hemodynamic response. ILMA has no advantage in attenuating the hemodynamic responses to orotracheal intubation compared with DLS.

Authors+Show Affiliations

Department of Anesthesiology, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100041, China.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Randomized Controlled Trial

Language

eng

PubMed ID

16780768

Citation

Zhang, Guo-hua, et al. "Comparative Study of Hemodynamic Responses to Orotracheal Intubation With Intubating Laryngeal Mask Airway." Chinese Medical Journal, vol. 119, no. 11, 2006, pp. 899-904.
Zhang GH, Xue FS, Sun HY, et al. Comparative study of hemodynamic responses to orotracheal intubation with intubating laryngeal mask airway. Chin Med J (Engl). 2006;119(11):899-904.
Zhang, G. H., Xue, F. S., Sun, H. Y., Li, C. W., Sun, H. T., Li, P., & Liu, K. P. (2006). Comparative study of hemodynamic responses to orotracheal intubation with intubating laryngeal mask airway. Chinese Medical Journal, 119(11), 899-904.
Zhang GH, et al. Comparative Study of Hemodynamic Responses to Orotracheal Intubation With Intubating Laryngeal Mask Airway. Chin Med J (Engl). 2006 Jun 5;119(11):899-904. PubMed PMID: 16780768.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Comparative study of hemodynamic responses to orotracheal intubation with intubating laryngeal mask airway. AU - Zhang,Guo-hua, AU - Xue,Fu-shan, AU - Sun,Hai-yan, AU - Li,Cheng-wen, AU - Sun,Hai-tao, AU - Li,Ping, AU - Liu,Kun-peng, PY - 2006/6/20/pubmed PY - 2006/7/6/medline PY - 2006/6/20/entrez SP - 899 EP - 904 JF - Chinese medical journal JO - Chin Med J (Engl) VL - 119 IS - 11 N2 - BACKGROUND: Intubating laryngeal mask airway (ILMA) offers a new approach for orotracheal intubation and is expected to produce less cardiovascular stress responses. However, the available studies provide inconsistent results. The purpose of this study was to identify whether there is a clinically relevant difference in hemodynamic responses to orotracheal intubation by using ILMA and direct laryngoscope (DLS). METHODS: A total of 53 adult patients, ASA physical status I-II, scheduled for elective plastic surgery under general anesthesia requiring the orotracheal intubation, were randomly allocated to either DLS or ILMA groups. After a standard intravenous anesthesia induction, orotracheal intubation was performed. Noninvasive blood pressure and heart rate were recorded before (baseline values) and after anesthesia induction (post-induction values), at intubation and every minute for the first 5 minutes after intubation. The data were analyzed using Chi-square test, paired and unpaired Student's t test, and repeated-measures analysis of variance as appropriate. RESULTS: The mean intubation time in the ILMA group was longer than that in the DLS group (P < 0.05). The blood pressure and heart rate increased significantly after intubation in the two groups compared to the post-induction values (P < 0.05), but the maximum value of blood pressure during the observation did not exceed the baseline value, while the maximum value of heart rate was higher than the baseline (P < 0.05). During the observation, there were no significant differences in blood pressure and heart rate among each time point and in the maximum values between the two groups. CONCLUSIONS: Orotracheal intubations by using ILMA and DLS produce similar hemodynamic response. ILMA has no advantage in attenuating the hemodynamic responses to orotracheal intubation compared with DLS. SN - 0366-6999 UR - https://www.unboundmedicine.com/medline/citation/16780768/Comparative_study_of_hemodynamic_responses_to_orotracheal_intubation_with_intubating_laryngeal_mask_airway_ L2 - https://Insights.ovid.com/pubmed?pmid=16780768 DB - PRIME DP - Unbound Medicine ER -