ORIGINAL ARTICLE
Year : 2014  |  Volume : 8  |  Issue : 4  |  Page : 451-455

Intracuff alkalized lidocaine reduces sedative/analgesic requirements for mechanically ventilated patients


Department of Anesthesiology and Intensive Care, Faculty of Medicine, Tanta University, Egypt

Correspondence Address:
Prof. Ahmed Sobhy Basuni
Department of Anesthesiology and Intensive Care, Faculty of Medicine, Tanta University
Egypt
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/1658-354X.140816

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Background: The objective of this study is to investigate the effect of intracuff alkalized lidocaine on sedative/analgesic requirements for mechanically ventilated patients and its consequence on patient-ventilator interaction. Materials and Methods: A total of 64 patients who expected to require ventilatory support for a period of more than 48 h were randomly assigned to groups S and L. In group S, the endotracheal tube (ETT) cuffs were inflated with normal saline. In group L, the ETT cuffs were inflated with lidocaine 2% and sodium bicarbonate 8.4%. The investigator and the surgical intensive care unit staff were blinded to the nature of cuff-filled solutions. Sedation was maintained with propofol and fentanyl infusions. The total requirements for propofol and fentanyl, frequency and severity of cough and number of ineffective triggering during the first 24 h of mechanical ventilation were recorded. Results: There was a significant reduction (about 30%) in the requirements for propofol and fentanyl in patients who received intracuff alkalinized lidocaine; P < 0.001. The frequency and severity of cough were significantly lower in group L compared with group S and the frequency of ineffective triggering was significantly lower in group L; P < 0.001 for both comparisons. Conclusion: Intracuff alkalized lidocaine increases ETT tolerance and hence, decreases sedatives/analgesics requirements for mechanically ventilated patients. This results in improved patient-ventilator synchronization.


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