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Pain and Analgesia During Labor and Delivery Between 16 0/7 and 22 6/7 Weeks of Gestation.
Obstetrics and Gynecology 2016 June
OBJECTIVE: To describe severity of pain during labor at previable estimated gestational age and to determine the effectiveness of various methods of analgesia in this population.
METHODS: In this retrospective review of the records of women undergoing induction or augmentation of labor between 16 0/7 and 22 6/7 weeks of gestation, we examined pain scores (numeric rating scale 0-10) documented throughout labor and analgesia method (none, systemic, or neuraxial). We compared relevant patient and labor characteristics such as gestational age, fetal weight, time interval from induction to delivery as well as pain data including analgesia type and pain scores before and after analgesia. We compared analgesia response in patients who received neuraxial analgesia and those who did not.
RESULTS: A total of 80 patients met inclusion criteria: four requested no analgesia, 56 used systemic analgesia only, 11 used systemic analgesia initially and then requested neuraxial analgesia, and nine used neuraxial without using systemic analgesia first. Median peak pain score was 7 among all patients. Patients who chose neuraxial analgesia had higher estimated gestational age (21 compared with 20 weeks of gestation, P=.03), fetal weight (362 compared with 268 g, P=.047), and admission-to-delivery time intervals (19.25 compared with 10.3 hours, P=.003) than those who chose no or systemic analgesia. Immediate preanalgesia peak pain scores were not different between groups, but patients who received neuraxial analgesia had lower immediate postanalgesia nadir scores than those who chose systemic pain relief.
CONCLUSION: Pain during induction of labor at previable gestational ages may be greater than is commonly appreciated. Neuraxial analgesia may provide more optimal pain relief for patients with higher estimated gestational age and fetal weight, particularly after 22 weeks of estimated gestational age.
METHODS: In this retrospective review of the records of women undergoing induction or augmentation of labor between 16 0/7 and 22 6/7 weeks of gestation, we examined pain scores (numeric rating scale 0-10) documented throughout labor and analgesia method (none, systemic, or neuraxial). We compared relevant patient and labor characteristics such as gestational age, fetal weight, time interval from induction to delivery as well as pain data including analgesia type and pain scores before and after analgesia. We compared analgesia response in patients who received neuraxial analgesia and those who did not.
RESULTS: A total of 80 patients met inclusion criteria: four requested no analgesia, 56 used systemic analgesia only, 11 used systemic analgesia initially and then requested neuraxial analgesia, and nine used neuraxial without using systemic analgesia first. Median peak pain score was 7 among all patients. Patients who chose neuraxial analgesia had higher estimated gestational age (21 compared with 20 weeks of gestation, P=.03), fetal weight (362 compared with 268 g, P=.047), and admission-to-delivery time intervals (19.25 compared with 10.3 hours, P=.003) than those who chose no or systemic analgesia. Immediate preanalgesia peak pain scores were not different between groups, but patients who received neuraxial analgesia had lower immediate postanalgesia nadir scores than those who chose systemic pain relief.
CONCLUSION: Pain during induction of labor at previable gestational ages may be greater than is commonly appreciated. Neuraxial analgesia may provide more optimal pain relief for patients with higher estimated gestational age and fetal weight, particularly after 22 weeks of estimated gestational age.
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