Tramadol vs dexmedetomidine for emergence agitation control in pediatric patients undergoing adenotonsillectomy with sevoflurane anesthesia: prospective randomized controlled clinical study.

BACKGROUND: This study was designed to compare the efficacy of an intraoperative single dose administration of tramadol and dexmedetomidine on hemodynamics and postoperative recovery profile including pain, sedation, emerge reactions in pediatric patients undergoing adenotonsillectomy with sevoflurane anesthesia. METHODS: Seventy-seven patient, aged 2-12, undergoing adenotonsillectomy with sevoflurane anesthesia was enrolled in this study. Patients were randomly assigned to receive either intravenous 2 mg/kg tramadol (Group T; n = 39) or 1 µg/kg dexmedetomidine (Group D; n = 38) after intubation. Heart rates (HR), mean arterial pressure (MAP) were recorded before induction, at induction and every 5 min after induction. Observational pain scores (OPS), pediatric anesthesia emergence delirium (PAED) scores, percentage of patients with OPS ≥ 4 or PAED scale items 4 or 5 with an intensity of 3 or 4, and Ramsay sedation scores (RSS) were recorded on arrival to the postoperative care unit (PACU) and at 5, 10, 15, 30, 45, 60 min. Extubation time and time to reach Alderete score > 9 were recorded. RESULTS: Dexmedetomidine significantly decreased the HR and MAP 10 and 15 min after induction; increased the RSS 15, 30 and 45 min after arrival to PACU. OPS and PAED scores and percentage of patients with OPS ≥ 4 or PAED scale items 4 or 5 with an intensity of 3 or 4 in both groups did not show any significant difference. Extubation time and time to have Alderete score > 9 was significantly longer in Group D. CONCLUSION: Both tramadol and dexmedetomidine were effective for controlling pain and emergence agitation. When compared with tramadol intraoperative hypotension, bradycardia and prolonged sedation were problems related with dexmedetomidine administration. TRIAL REGISTRATION: Retrospectively registered, registration number: ISRCTN89326952 registration date: 14.07.2016.

Effects of steep Trendelenburg position and pneumoperitoneum on middleear pressure in patients undergoing robotic radical prostatectomy.

BACKGROUND/AIM: The aim of this study was to quantify the changes in middle ear pressure (MEP) during robot-assisted radical prostatectomy (RARP). MATERIALS AND METHODS: Thirty patients undergoing RARP were included in this study. MEP was obtained at the following time points: awake (T1), postintubation (T2), pneumoperitoneum + 1 h of Trendelenburg position (T3), pneumoperitoneum + 2 h of Trendelenburg position (T4), pneumoperitoneum + 3 h of Trendelenburg position (T5), desufflation + supine position (T6), and 1 h after extubation in the postanesthesia care unit (T7). Heart rate, mean arterial pressure (MAP), peak airway pressure (PAP), tidal volume, minute ventilation, EtCO2, and blood gas values were recorded. RESULTS: MEP was significantly higher at T4, T5, T6, and T7 as compared to T1 values. PAP values were significantly increased at T3, T4, and T5 compared to T2. MAP values at T3, T4, and T5 were significantly higher compared to T1. PaCO2 increased significantly at T4, T5, and T6 and pH decreased significantly at T4 and T5 when compared to T2. CONCLUSION: The combination of steep Trendelenburg position and pneumoperitoneum during RARP caused a significant increase in MEP, PaCO2, and EtCO2 levels. This propensity for increased MEP may cause problems in patients with preexisting ear disease.

Effects of preoperative lornoxicam versus tramadol on postoperative pain and adverse effects in adult tonsillectomy patients.

OBJECTIVES: This study assessed the efficacy and adverse effects of preoperatively administered lornoxicam versus tramadol in adults, for post-tonsillectomy pain. METHODS: This prospective, double blind, randomized, clinical research was performed in the Ear, Nose and Throat Surgery Room in the Department of Anesthesia and Reanimation, Gazi University Faculty of Medicine. Forty American Society of Anesthesiologists (ASA) status I-II patients of both gender, aged 18-55 years, were included. RESULTS: Tonsillectomy patients were divided into two groups: Those in Group L received 8 mg lornoxicam and in Group T received 50 mg tramadol intravenously just before induction of general anesthesia. Induction and maintenance of anesthesia (propofol, atracurium, nitrous oxide and sevoflurane) were standardized. Heart rate and systolic and diastolic arterial pressure data were monitored during the anesthesia. Intra-operative bleeding was scored by the same operator using a 5-point scale at the end of the surgery. Postoperative pain on swallowing was scored by a blinded anesthesiologist using Verbal Rating Scale (VRS) on arrival in the Post Anesthesia Care Unit (T(0)), at 30 min (T(1)), 1h (T(2)), 2h (T(3)), 3h (T(4)), 4h (T(5)), 5h (T(6)), and 6h (T(7)) thereafter. During the first postoperative 6 hours, when VRS >/=2, 1mg.kg(-1) im meperidine was used as a rescue analgesic. Adverse effects in the postoperative 6h period were noted. T(1) and T(2) pain scores in Group T were higher than in Group L (p=0.049, p=0.007, respectively). The number of patients requiring rescue analgesics during the first 6 hours in Group L was lower than in Group T. Nausea-vomiting, bleeding and postoperative hemorrhage values were similar between Group L and Group T. CONCLUSION: Preoperative 8 mg lornoxicam was more effective than 50 mg tramadol with respect to early postoperative tonsillectomy pain in adult patients, and side effects were similar.

Comparison of the efficacy of propofol and metoclopramide in preventing postoperative nausea and vomiting after middle ear surgery.

OBJECTIVE: To compare the administration of sub hypnotic dose of propofol with metoclopramide and placebo in prevention of postoperative nausea and vomiting (PONV) after middle ear surgery. METHODS: This clinical research was performed in the Faculty of Medicine, Gazi University, Besevler, Ankara, Turkey, between December 2004 and October 2005. Following approval by the hospital ethics committee, 60 adult patients scheduled for a middle ear operation were randomly assigned into 3 groups. The patients in group P received 0.5 mg x kg(-1) propofol; in group M, 0.2 mg x kg(-1) metoclopramide, and in group C, 0.9% saline solution. The number of patients suffering from nausea and vomiting at 0-4, 4-12, and 12-24 hours postoperatively, and additional use of antiemetics was recorded. RESULTS: Comparisons of the data showed that at 0-4th hours, the incidence of vomiting was 25% in group P, 40% in group M, and 75% in group C. The incidence rate of group P was significantly lower than that of group C (p=0.002), and the rate of antiemetics use in group C was higher than that in group P (p=0.028). The Nausea Vomiting Scale scores of group C were also significantly higher than those of group P (p=0.005). There were no significant differences between the values at 4-12 and 12-24 hours. CONCLUSION: The administration of a sub hypnotic dose of propofol at the end of surgery was found to be at least as effective as metoclopramide in preventing PONV in the early postoperative period in adult patients undergoing middle ear surgery.

Transcutaneous electrical nerve stimulation in the prevention of postoperative nausea and vomiting after elective laparoscopic cholecystectomy.

STUDY OBJECTIVE: To examine the effectiveness of transcutaneous electrical nerve stimulation (TENS) on postoperative nausea and vomiting (PONV). DESIGN: Randomized, prospective, controlled study. SETTING: Gazi University Medical School Hospital. PATIENTS: 40 ASA physical status I-II patients who underwent elective laparoscopic cholecystectomy. INTERVENTIONS: Patients were randomly divided into two equal groups. Group I received TENS (stimulation group), whereas group II served as the control group (nonstimulation group). In group I, one electrode was applied to the hairless skin on the neck as anode, and the other 2 (electrodes) were applied to the mastoid area. The stimulator at a frequency of 5 Hz, 50 milliseconds, with a current density of 0.5 to 4 mA was applied on the trapezoid area for 6 hours to all patients postoperatively. MEASUREMENTS: All patients in both groups were evaluated for side effects, antiemetic effects, and analgesic and antiemetic need for 24 hours. MAIN RESULTS: Postoperative nausea and vomiting, frequency of dizziness, additional antiemetic and analgesic need, and PONV scores were lower in group I than group II. CONCLUSIONS: Electrical stimulation of the vestibular system may be useful in the prevention of PONV.

Comparison of the antiemetic effects of ondansetron and dexamethasone on middle ear surgery.

OBJECTIVE: To compare the antiemetic efficacy of ondansetron and dexamethasone in adults undergoing middle ear surgery. METHODS: This clinical research took place in the Faculty of Medicine, Gazi University, Turkey between January to December 2004. The study included 60 cases, classified by the American Society of Anesthesiology physical status group I-II, who underwent middle ear surgery. We carried out anesthesia induction with 5 mg x kg(-1) sodium thiopental and performed muscle relaxation with 0.5 mg x kg(-1) atracurium to be followed by orotracheal intubation. Anesthesia was maintained at 5 L x min(-1) gas flows with 2-3% sevoflurane inhalation in 70/30% O(2)/N(2)O. We randomly distributed the cases into 2 groups, and the first group (Group O) was administered with 4 mg ondansetron intravenously (IV) at the stage of surgical skin closure and the second group (Group D) with 5 mg dexamethasone IV immediately after anesthesia induction. In the first 24 hours postoperatively, nausea vomiting score (NVS) and nausea, vomiting frequency, Metamizole-Na and non-steroidal anti-inflammatory drug use, the need for additional antiemetics and cost as well as the number of cases with nausea, vomiting and the need for extra antiemetics during 0-4, 4-12 and 12-24 hours were recorded, and their distribution to groups was evaluated. RESULTS: The NVS was 0 (0-0) in group O compared with 1 (0-3) in group D (p=0.003). The use of additional antiemetics was found to be significantly lower in group O (1 +/- 0.6) compared with group D (3.70 +/- 1.02) (p=0.028). In comparing the cost, group O (9.8 dollars) was found to have a significantly higher cost compared with group D (1.1 dollars) (p<0.0001). CONCLUSION: Ondansetron had a more significant effect on nausea and vomiting in the early period, however, no difference was found after 4 hours of administration. Furthermore, dexamethasone was found to cost less compared with ondansetron.

Anesthesia for proteus syndrome.

Proteus syndrome is a complex disorder comprising malformations and overgrowth of multiple tissues. The disorder is highly variable affecting tissues in a mosaic pattern. A 2-year-old boy with Proteus syndrome, with epidermal verrucal naevus, hyperplastic lesions of connective tissue, hyperostosis, overgrowth of tubular bones, bilateral inguinal hernia, and juvenile intestinal polyposis was scheduled for vertebral magnetic resonance imaging (MRI) for further evaluation of malignancies. In addition to the pathological findings of this syndrome, potential complications such as difficult intubation, pulmonary hypertension, and pulmonary thromboembolism necessitate a careful preoperative and anesthetic preparation. MRI was performed under general anesthesia. There were no anesthetic complications. There are few previous reports on anesthesia in a patient with Proteus syndrome.