comparison of conventional endotracheal tube with silicone wire-reinforced tracheal tube for intubation through intubating laryngeal mask airway

A specially designed wire-reinforced endotracheal tube - the Fastrach silicone tube [FTST] designed to facilitate endotracheal intubation through intubating laryngeal mask airway [ILMA] are expensive and not readily available. Hence, it is worth considering alternative such as polyvinyl chloride tracheal tube [PVCT], which is disposable, cheap and easily available. The aim of the present study was to compare the clinical performance of FTST with conventional PVCT for tracheal intubation through ILMA. After informed consent, 60 ASA I-II adults with normal airway undergoing elective surgery were randomly allocated to undergo blind tracheal intubation through ILMA with a FTST or conventional PVCT. Overall success rate, ease of insertion, number of attempts for successful intubation, critical incidence during intubation and post-operative sore throat were compared. The overall success rate with FTST was 96.63% and 93.33% with PVCT; in addition, the first attempt success rate was 86.25% with FTST compared to 82.14% with PVCT. The time taken for intubation was 18.6 +/- 6.8 s. in FTST group and 22.42 +/- 8.5 s. in PVCT group. Incidence of sore throat was 21.42% in PVCT group compared with 6.89% in FTST group. Blind tracheal intubation through an ILMA with the conventional PVCT instead of FTST is a feasible alternative in patients with normal airways.

analgesic efficacy of ultrasound-guided transversus abdominis plane block for retroperitoneoscopic donor nephrectomy: a randomized controlled study

Transversus abdominis plane [TAP] block is suitable for lower abdominal surgeries. Blind TAP block has many complications and uncertainty of its effects. Use of ultrasonography increases the safety and efficacy. This study was conducted to evaluate the analgesic efficacy of ultrasound [USG]-guided TAP block for retroperitoneoscopic donor nephrectomy [RDN]. In a prospective randomized double-blind study, 60 patients undergoing laparoscopic donor nephrectomy were randomly divided into two groups by closed envelope method. At the end of surgery, USG-guided TAP block was given to the patients of both the groups. Study group [group S] received inj. Bupivacaine [0.375%], whereas control group [group C] received normal saline. Inj. Tramadol [1 mg/kg] was given as rescue analgesic at visual analog scale [VAS] more than 3 in any group at rest or on movement. The analgesic efficacy was judged by VAS both at rest and on movement, time to first dose of rescue analgesic, cumulative dose of tramadol, sedation score, and nausea score, which were also noted at 30 min, 2, 4, 6, 12, 18, and 24 h postoperatively. Total tramadol consumption at 24 h was also assessed. Patients in group S had significantly lower VAS score, longer time to first dose of rescue analgesic [547.13 +/- 266.96 min vs. 49.17 +/- 24.95 min] and lower tramadol consumption [103.8 +/- 32.18 mg vs. 235.8 +/- 47.5 mg] in 24 h. The USG-guided TAP block is easy to perform and effective as a postoperative analgesic regimen in RDN, with opioids-sparing effect and without any complications

Analgesic efficacy of peritubal infiltration of ropivacaine versus ropivacaine and morphine in percutaneous nephrolithotomy under ultrasonic guidance

Percutaneous nephrolithotomy is a safe and effective endourologic procedure which is less morbid than open surgery. However, pain around a nephrostomy tube requires good post-operative analgesia. We hypothesize that infiltration of local anesthetic with opioid from the renal capsule to the skin around the nephrostomy tract under ultrasonic guidance would alleviate the postoperative pain for a long period. A total of 60 ASA physical status I to II patients were selected for a prospective randomized double-blind controlled study in percutaneous nephrolithotomy surgeries. Patients were divided into group R [n=30] and group RM [n=30]. Balanced general anesthesia was given. After completion of the surgical procedure, a 23-gauze spinal needle was inserted at 6 and 12 O'clock position under ultrasonic guidance up to renal capsule along the nephrostomy tube. A 10 ml drug solution was infiltrated in each tract while withdrawing from renal capsule to the skin. After extubation, the patient was shifted to the post-anesthesia care unit for 24 hours. Post-operative pain was assessed using the visual analog scale [VAS] and dynamic visual analog scale [DVAS] [during deep breathing and coughing] rating 0-10 for initial 24 hours. Rescue analgesia was given in the form of injection tramadol 1.0 mg/kg intravenously when VAS >/= 4 and maximum up to 400 mg in 24 hours. Time to 1[st] rescue analgesic, number of doses of tramadol and total consumption of tramadol required in initial 24 hours were noted. Patients were observed for any side effect and treated accordingly. Time to 1[st] rescue analgesic, i.e., duration of analgesia in group RM is more prolonged than group R [P=0.0004]. The number of doses of tramadol in 24 hours in group R were higher as compared to group RM [P=0.0003]. The total amount of tramadol in 24 hours in group R was more than in group RM [P=0.0013]. Side effects like nausea and vomiting and sedation were comparable in both the groups. Addition of morphine to ropivacaine for nephrostomy tract infiltration significantly prolonged the duration of post-operative analgesia and reduced the number of doses and total consumption of rescue analgesic in initial 24 hours in percutaneous nephrolithotomy surgery