In this study, we decided to introduce a method of anesthesia for cervical cerclage in parturients which does not produce any side effect on fetus and lead to rapid recovery and early discharge of patient from hospital. This study was accomplished on 30 parturients. Inclusion criteria were pregnant woman; cervical cerclage operation; age 18-40 years old and patients consent. Exclusion criteria were presence of contraindication to spinal anesthesia; allergy to local anesthetic drugs; allergy to narcotics; positive history of analgesic and sedative drugs consumption. The patients were divided randomly to two equal groups by colored cards. Initially 500ml ringer was administered to the patients. Before spinal anesthesia, blood pressure and heart rate were recorded. For spinal anesthesia, patients of one group received 10 mg bupivacaine 0.5% (2ml) and the other group received 5mg bupivacaine 0.5% (1ml) with 10µg fentanyl (0.2 ml) and 0.8 ml normal saline in sitting position. Then in supine position blood pressure and heart rate were measured 2, 4, 6, 8, 10, 15, and 20 minutes after spinal anesthesia and in the recovery room. In the presence of decreased blood pressure to less than 90 mmHg or 20% of baseline level, we administered ephedrine. The time of T10 sensory block establishment and also maximum level of sensory block was determined by pinprick method. We used Bromage score for evaluation of motor block and maximum level of motor block was recorded. At the end of operation, the onset time of ability to movement was recorded.
Headache, nausea, vomiting and itching were recorded if they occurred.