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CLINICAL INVESTIGATION
Year : 2012  |  Volume : 56  |  Issue : 4  |  Page : 353-358

Comparison of haemodynamic responses to intubation: Flexible fibreoptic bronchoscope versus bonfils rigid intubation endoscope


1 Department of Anaesthesia and Intensive care, Maulana Azad Medical College and Lok Nayak Hospital, New Delhi, India
2 MAMC, Delhi, India
3 Professor & Head of Department, MAMC, India
4 Department of Community Medicine, MMCRI, Mysore, India
5 Department of Paediatrics, M.M.I.M.S.R, Mullana, India
6 Global Hospital, Delhi, India

Correspondence Address:
Kapil Gupta
Department of Anaesthesia and Critical Care, V.M.M.C and Safdarjung Hospital, New Delhi - 110 029
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0019-5049.100816

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Background : The flexible fibreoptic bronchoscope and bonfils rigid intubation endoscope are being widely used for difficult intubations. Methods: The haemodynamic response to intubation under general anaesthesia was studied in 60 adult female patients who were intubated using either flexible fibreoptic bronchoscope or bonfils rigid intubation endoscope (30 in each group). Non-invasive blood pressure and heart rate (HR) was recorded before induction of anaesthesia, immediately after induction, at the time of intubation and, thereafter, every minute for the next 5 min. The product of HR and systolic blood pressure (rate pressure product) at every point of time was also calculated. Statistical Analyses: Graph pad prism, 5.0 statistical software, independent t test and repeated measure ANOVA test were used. Results: Both bonfils rigid intubation endoscope and flexible fibreoptic bronchoscope required a similar time (less than 1 min) for orotracheal intubation. After intubation, there was a significant increase in HR, blood pressure and rate pressure product (P<0.001) in both the groups compared with the baseline and post-induction values. There was no significant difference in HR, blood pressure and rate pressure product at any of the measuring points or in their maximum values during observation between the two groups. The time required for recovery of systolic blood pressure and HR to post-induction value (±10%) was not significantly different between the two groups (more than 2 min). Conclusion: In female adults under general anaesthesia, bonfils rigid intubation endoscope and flexible fibreoptic bronchoscope require a similar time for successful orotracheal intubation and cause a similar magnitude of haemodynamic response.


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