Introduction:

Post-cesarean pain control is important to facilitate early mobilization and rapid recovery for postpartum women.

Objective:

To determine the analgesic efficacy of intrathecal morphine as a complement to spinal anesthesia for cesarean surgery at the Jorge Maeda Hospital in San Borja (Beni) from July to September 2020.

Methodology:

We conducted a double-blind randomized clinical trial to evaluate the analgesic efficacy and safety of intrathecal morphine (ITM) for postoperative pain management following cesarean interventions at the Jorge Maeda Hospital in San Borja (Beni) during the period from July to September 2020. The study population consisted of patients scheduled for cesarean section.

Results:

Pain was more frequent in Group A, which received a dose of 1 µg/kg intrathecal morphine (8/45), compared to Group B, which received a dose of 2 µg/kg intrathecal morphine (0/45). However, Group A had fewer adverse effects related to opioids (3/45) compared to Group B (10/45).

Conclusions:

The use of intrathecal morphine is safe. Based on the results obtained, a dose of 1 µg/kg is more recommendable due to its effective pain control and reduced frequency of adverse reactions.