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Introduction: As tonsillectomy operations are done in vicinity of airways, two important purposes in anesthesia are decreasing bleeding and recovery time. Because of common use of Halothane and its reported side effects, we managed a study for comparing these two factors in two methods of anesthesia with or without Halothane. Materials and Methods: In a single blinded clinical trial, 140 (4-12 years old) children undergoing tonsillectomy, were randomly allocated in two equal groups. In the control group maintenance was done with Halothane-N2O 50% but in the case group without Halothane plus hyperventilation (Liverpool technique). Bleeding volume was estimated according to preoperative and 6 hour's postoperative hematocrit. Recovery time was recorded in minutes. Data was ahalyzed using Mann-Whitney U, T, Leven and K-S tests. Results: There was not any significant difference in sex, age, and weight and operation duration in the two groups. Mean recovery time in the case group was 7.87 minutes and in the control group 15.59 minutes, which showed a significant difference (p=0.00001). Mean bleeding volume in the case group was 44.22 ml and in the control group 58.52 ml, which also showed a significant difference (p = 0.005). Conclusion: According to our study it seems that anesthesia with Halothane causes more bleeding and prolonged recovery time in comparison to Liverpool technique.

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Background: Pain following tonsillectomy is common in children, and its elimination due to its subsequent complications is essential. Therefore, this study was conducted with the aim of obtaining the best method of administering ketamine for reducing pain following tonsillectomy with the greatest efficiency and the least side effects. Materials and Methods:This study was a double-blind clinical trial which was conducted on 92 children, aged 3-9, who had been admitted for tonsillectomy. The patients were randomly divided into oral ketamine and ketamine injection groups (each containing 46 patients). Thirty minutes before the operation, all the patients were given apple-juice ketamine injection group received normal apple juice without ketamine, whereas the oral ketamine group received 5mg/kg ketamine with the apple juice. Three minutes before tonsillectomy, 0.5 mg/kg ketamine was injected to the peritonsillar area in ketamine injection group while the same volume of saline was injected to the oral ketamine group. Data were registered, gathered, and, then, analyzed using Wilcoxon, Man Whitney, and t tests. Results: Demographic data and blood pressure before and after the operation did not have significant differences in the 2 groups. In terms of the duration of operation time, a significant difference was observed between the two groups the operation time in the ketamine injection group was shorter (p=0.006). Also, pain score in the ketamine injection group was less than the oral ketamine group. Conclusion: Ketamine is effective in reducing the pain after tonsillectomy operation. Peritonsillar injection of ketamine is more effective than its oral usage.

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Background: One of the most important complications of tonsillectomy is laryngospasm which leads to airway obstruction, arterial hypoxemia, and hypercarbia. Thus the present study was carried out to compare the effect of propofol with sodium thiopental, as an induction agent of anesthesia, on the incidence and intensity of laryngospasm after extubation in tonsillectomy. Materials and Methods: This double-blind clinical trial was done on 60 3-12-year-old patients who were chosen for elective tonsillectomy at Qods Hospital in Qazvin. The patients were randomly divided into two equal groups. Method of anesthesia was the same in these two groups except for the induction of anesthesia one group received sodium thiopental and the other group received propofol. At the end of the operation, patients were extubated after the restoration of spontaneous respiration with adequate tidal volume and respiratory rate. Then the incidence and intensity of laryngospasm was evaluated. Data were analyzed by t-test, Chi-square, and Fisher's exact test using SPSS software. Results: Overall, 83% of the patients in the sodium thiopental group and 93% of the patients in the propofol group did not develop laryngospasm and there were no statistical differences between the two groups in terms of the incidence and intensity of laryngospasm after extubation in tonsillectomy (P=0.535). Conclusion: As an induction agent in general anesthesia, propofol has the same effect as sodium thiopental on the incidence and intensity of laryngospasm after tonsillectomy.

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Background: The definite treatment of indicated Hypertrophy of the tonsils is Tonsillectomy. The aim of this study was to compare the efficacy and necessity of diclofenac suppository and simultaneous prescription of acetaminophen alone in controlling and reducing pain and improving swallowing and satisfaction after surgery for tonsillectomy in children.

Materials and Methods: In this clinical trial, 180 children 7 to 14 years Tvnsykltvmy surgery were enrolled. Patients in an improbable way, easy and were divided into three groups of 60. Immediately after the surgery acetaminophen, diclofenac, or a combination of both was used. The cases of pain in the early hours, seventh, thirteenth and nineteenth after surgery were compared.

Results: There was a significant difference between the average pains of all groups in all hours (p<0.05). There was a significant difference between the groups from the point of view of side effects such as Nausea, Vomiting and Pyrexia (p<0.05), But there was no significant difference between the groups from the point of view of After Surgery Bleeding (p>0.05).

Conclusion: We can say that Rectal Diclofenac is a more effective medication for reducing pain after the Tonsillectomy surgery in contrast with Rectal Acetaminophen or a mixture of the two, which may cause the patients to use less Narcotics after the surgery.