---

Background and purpose: Post operation pain is seen in 30-70 percent of patients. Using local anesthetic is a safe, easy and cheap method for post opration pain management. In this study, the effects of lidocaine and bupivacaine lavage on post operation pain are assessed.
Materials and Methods: In this double blind randomized control clinical trial, 90 healty women between 15-60 years old randomly allocated in 3 groups, lidocaine, bupivacaine and normal salin. After abdominal hysterectomy the medicine or placebo (in uniform package) is Administered in peritoneal cavity by surgeon and, 0, 2,6,12,24 and 48 hours after the surgery, the rate of pain was checked. Consumption of morphin and frequency of vomiting were measured and compared between groups using SPSS 12 software.
Results: Post operational pain relief was significantly lower in lidocaine group compared with bupivacaine and normal saline, however, morphin consumption and frequency of vomiting were the same in three groups.
Conclusion: Based on the results, it can be concluded that intraperitoneal lidocaine provides significant pain relief for 12 hours after abdominal hysterectomy.

---

Background and purpose: Cataract surgery is the most frequent surgery in old patients. Forty six percent of people older than 75 years of age have cataract. These elderly patients frequently have associated diseases. It is important to select the best anesthetic method with least complications. This study compared 3 anesthetic methods. Regarding to patients, and surgens, comfort, frequency of nausea and vomiting in the patients undergoing cataract surgery.
Materials and Methods: This cross sectional observational study with simple sample recruitment was performed on 120 patients divided in three groups of 40 cases, with general anesthesia, topical anesthesia +light IV sedation and local anesthesia + light IV sedation in summer 2004 in Feiz Medical Center. Data collected using check list. One way Anova and Chi-square tests were used to compare mean qualitative and frequency of qualitative variables. The level of statistical significance was set at P< 0.05.
Results: There were significant differences in mean score of surgeons, and patients, comfort, mean severity of nausea after surgery and mean score of pain between 3 groups (P<0.001). There was no significance difference in frequency of vomiting after surgery between 3 groups (P=0.33)
Conclusion: It has been suggested that topical anesthesia +light IV sedation is a safe and effective method for cataract surgery.

---

 Background and purpose: Pain management is one of the important issues in dental treatments. Fear of pain can make the process of anesthesia injection before dental treatment difficult for both the dentist and the patient. The aim of this study was to compare the effect of Najo-Caine P® with topical Benzocaine in reducing the pain of needle insertion in palatal anesthesia in 9-12 year old children.
Materials and methods: In a double-blind clinical trial, 23 children aged 9-12 years were selected via convenience sampling, who needed palatal anesthesia injection on both sides of the jaw, at the Dental Clinic affiliated with Mazandaran University of Medical Sciences, in 2022. The desired areas were air-dried for 5 seconds. Benzocaine was applied with a cotton swab on one side of the jaw, and in the next session with the same preparation on the other side of the jaw, Najo-Caine P® anesthesia (2.5% lidocaine cream and 2.5% prilocaine similar to EMLA) was applied by the injector for 2 minutes.
Results: The Visual Analogue Scale (VAS) scores for Benzocaine and Najo-Caine P® were compared. The VAS score for Najo-Caine P® (3.52) was lower than that of Benzocaine (3.78), but, the difference was not statistically significant (P= 0.488).
Conclusion: Current study suggests that Najo-Caine P®, as a form of EMLA cream, can be used as an alternative to Benzocaine before palatal infiltrate injection to reduce palatal pain in children.

(Clinical Trials Registry Number: IRCT20220412054516N1)