Background:It is difficult to visualise the larynx using conventional laryngoscopy in the presence of cervical spine immobilisation. Airtraq® provides for easy and successful intubation in the neutral neck position.Objective:To evaluate the effectiveness of Airtraq in comparison with the Mc Coy laryngoscope, when performing tracheal intubation in patients with neck immobilisation using hard cervical collar and manual in-line axial cervical spine stabilisation.Methods:A randomised, cross-over, open-labelled study was undertaken in 60 ASA I and II patients aged between 20 and 50 years, belonging to either gender, scheduled to undergo elective surgical procedures. Following induction and adequate muscle relaxation, they were intubated using either of the techniques first, followed by the other. Intubation time and Intubation Difficulty Score (IDS) were noted using Mc Coy laryngoscope and Airtraq. The anaesthesiologist was asked to grade the ease of intubation on a Visual Analogue Scale (VAS) of 1–10. Chi-square test was used for comparison of categorical data between the groups and paired sample t-test for comparison of continuous data. IDS score and VAS were compared using Wilcoxon Signed ranked test.Results:The mean intubation time was 33.27 sec (13.25) for laryngoscopy and 28.95 sec (18.53) for Airtraq (P=0.32). The median IDS values were 4 (interquartile range (IQR) 1–6) and 0 (IQR 0–1) for laryngoscopy and Airtraq, respectively (P=0.007). The median Cormack Lehane glottic view grade was 3 (IQR 2–4) and 1 (IQR 1–1) for laryngoscopy and Airtraq, respectively (P=0.003). The ease of intubation on VAS was graded as 4 (IQR 3–5) for laryngoscopy and 2 (IQR 2–2) for Airtraq (P=0.033). There were two failures to intubate with the Airtraq.Conclusion:Airtraq improves the ease of intubation significantly when compared to Mc Coy blade in patients immobilised with cervical collar and manual in-line stabilisation simulating cervical spine injury.
Background and Aims:Modified Radical Mastectomy (MRM) is the commonly used surgical procedure for operable breast cancer, which involves extensive tissue dissection. Therefore, wound instillation with local anaesthetic may provide better postoperative analgesia than infiltration along the line of incision. We hypothesised that instillation of bupivacaine through chest and axillary drains into the wound may provide postoperative analgesia.Methods:In this prospective randomised controlled study 60 patients aged 45–60 years were divided into three groups. All patients were administered general anaesthesia. At the end of the surgical procedure, axillary and chest wall drains were placed before closure. Group C was the control with no instillation; Group S received 40 ml normal saline, 20 ml through each drain; and Group B received 40 ml of 0.25% bupivacaine and the drains were clamped for 10 min. After extubation, pain score for both static and dynamic pain was evaluated using visual analog scale and then 4th hourly till 24 h. Rescue analgesia was injection tramadol, if the pain score exceeds 4. Statistical analysis was performed using SPSS version 13.Results:There was a significant difference in the cumulative analgesic requirement and the number of analgesic demands between the groups (P: 0.000). The mean duration of analgesia in the bupivacaine group was 14.6 h, 10.3 in the saline group and 4.3 h in the control group.Conclusion:Wound instillation with local anaesthetics is a simple and effective means of providing good analgesia without any major side-effects.
This prospective, randomised, double blind study compared the efficacy of pethidine as an adjuvant to bupivacaine with the efficacy of bupivacaine alone for infra-orbital nerve block in alleviating postoperative pain in children undergoing cleft lip repair. Forty paediatric patients aged between 5 and 60 months undergoing cleft lip repair were randomly allocated to two groups of 20. After tracheal intubation, group B received bilateral intra-oral, infra-orbital nerve block with 1 ml of 0.25% bupivacaine on each side and group P received 1 ml of 0.25% bupivacaine along with 0.25 mg.kg(-1) body weight pethidine. Sedation after recovery from anaesthesia was assessed using the University of Michigan Sedation Scale (UMSS) and pain was assessed postoperatively up to 36 h using the FLACC scale (Face, Legs, Activity, Cry, Consolability). The median (IQR) duration of analgesia from the time of administration of block in group B was 18 h (14.2-20) compared to 29.1 h (24-36) in group P (p = 0.001). Addition of pethidine as an adjunct to local anaesthetic significantly prolonged the duration of postoperative analgesia without any adverse effects.
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