JOURNAL ARTICLE
RANDOMIZED CONTROLLED TRIAL

Effect of varying doses of fentanyl with low dose spinal bupivacaine for caesarean delivery in patients with pregnancy-induced hypertension

K Jain, V K Grover, R Mahajan, Y K Batra
International Journal of Obstetric Anesthesia 2004, 13 (4): 215-20
15477049
The purpose of this study was to evaluate haemodynamic stability, perioperative analgesia and neonatal outcome following intrathecal 0.5% bupivacaine 7.5 mg with varying doses of fentanyl, in parturients with pregnancy-induced hypertension. Forty-five parturients with pregnancy-induced hypertension scheduled for caesarean section were randomly allocated to receive 7.5 mg bupivacaine with saline 1 mL (group B), fentanyl 10 microg (group Bf10) or fentanyl 20 microg (group Bf20) intrathecally. Heart rate, blood pressure, and sensory block were recorded at regular intervals. Pain, nausea, vomiting, pruritus or any other side effects were sought. Neonatal outcome was assessed using Apgar score and umbilical artery blood gas analysis. Adequate surgical anaesthesia was established in all three groups. There was a statistically significant fall in mean arterial pressure in all three groups within 4-6 min of subarachnoid block (P<0.05), but the decrease in MAP was <20% of baseline in all three groups. Pain and discomfort during surgery were experienced more frequently in group B than in groups Bf10 and Bf20 (P<0.05). Duration of postoperative analgesia was significantly longer in group Bf20 (5.55+/-1.18 h) than in group Bf10 (3.97+/-2.12 h) and group B (3.27+/-1.8 h) (P<0.05). Neonatal outcome was similar in the three groups. Intrathecal fentanyl with low dose bupivacaine provides good surgical anaesthesia and prolongs the duration of analgesia without haemodynamic or neonatal compromise in patients with pregnancy-induced hypertension undergoing caesarean delivery.

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