Evidence map›Paper›PMID 42110526›Full record

Trial reportFrontiers in pharmacology2026

Effects of hydromorphone for patient-controlled intravenous analgesia on postpartum depression and sleep disorders after cesarean section: a randomized, double-blind controlled trial.

Yun Zhu, Chao Wang, Xiangxiang Chen, Yuanyuan Zhao, Lei Yang, Qi Wang, Jie Lv, Wei Wang

Abstract readClinical Trial
In one paragraph

Trial report in Frontiers in pharmacology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Yun Zhu *Department of Anesthesiology, Nanjing Jiangning Hospital of Traditional Chinese Medicine, Nanjing, China.
Chao Wang *Department of Anesthesiology, Nanjing Jiangning Hospital of Traditional Chinese Medicine, Nanjing, China.
Xiangxiang Chen *Department of Anesthesiology, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, China.
Yuanyuan ZhaoDepartment of Anesthesiology, Huainan First People's Hospital, The First Affiliated Hospital of Anhui University of Science and Technology, Huainan, China.
Lei YangDepartment of Anesthesiology, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, China.
Qi WangDepartment of Anesthesiology, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, China.
Jie LvDepartment of Anesthesiology, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, China.
Wei WangDepartment of Anesthesiology, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Postpartum depression (PPD) is a significant concern in obstetrics. This study aimed to investigate the effects of hydromorphone in patient-controlled intravenous analgesia (PCIA) on PPD and sleep disorders following cesarean section. Methods: A total of 140 parturients undergoing elective cesarean section under combined spinal-epidural anesthesia, with singleton full-term pregnancy and aged 22-35 years, were enrolled from July to December 2025 at Jiangning Hospital Affiliated to Nanjing Medical University. Using a random number table, participants were allocated to two groups based on PCIA formulation: the sufentanil group (Group S) received sufentanil (3 μg/kg) + tropisetron (0.1 mg/kg) diluted to 150 mL with normal saline; the hydromorphone group (Group H) received hydromorphone (0.15 mg/kg) + tropisetron (0.1 mg/kg) diluted to 150 mL with normal saline. The primary outcome was the incidence of PPD at 6 weeks postoperatively. Secondary outcomes included PPD incidence at 1 week, Ramsay sedation scores at 24 and 48 h, Pittsburgh Sleep Quality Index (PSQI) scores preoperatively and at 24/48 h, resting Visual Analog Scale (VAS) pain scores at 6, 12, 24, and 48 h, PCIA button presses and rescue analgesia within 48 h, cumulative 48-hour opioid consumption, bowel function recovery time, first lactation time, neonatal behavioral neurological assessment (NBNA) scores at 48 h postoperatively and adverse reactions. Results: The incidence of PPD at 6 weeks was significantly lower in Group H compared to Group S [5.8% vs. 20.6%, relative risk (RR) = 0.28, 95% confidence interval (CI) 0.10 to 0.78, Conclusion: Hydromorphone for PCIA after cesarean section can reduce the incidence of PPD at 6 weeks, improve early postoperative sleep quality, and decrease dizziness and drowsiness. Clinical Trial Registration: https://www.chictr.org.cn/bin/home, identifier ChiCTR2500105264.

Indexed as

cesarean sectionhydromorphonepatient-controlled intravenous analgesiapostpartum depressionsleep disorders

Identifiers

PMID42110526
PMCPMC13153089

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.