Evidence map›Paper›PMID 40591374›Full record

Trial reportBJS open2025

Comparison of postoperative analgesic effects of ultrasound-guided intercostal nerve block and transversus abdominis plane block in patients undergoing laparoscopic cholecystectomy: randomized clinical trial.

Hongchun Xu, Dandan Song, Zhiqiang Wu, Chao Lin, Wuchang Fu, Fangjun Wang

Abstract readRandomized Controlled TrialComparative Study
In one paragraph

Trial report in BJS open, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Review
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

6 authors.

Hongchun XuDepartment of Anaesthesiology, Affiliated Hospital, North Sichuan Medical College, Nanchong, China.
Dandan SongDepartment of Anaesthesiology, Affiliated Hospital, North Sichuan Medical College, Nanchong, China.
Zhiqiang WuDepartment of Anaesthesiology, North Sichuan Medical College, Nanchong, China.
Chao LinDepartment of Anaesthesiology, North Sichuan Medical College, Nanchong, China.
Wuchang FuDepartment of Anaesthesiology, Second Clinical Medical Institution of North Sichuan Medical College (Nanchong Central Hospital), Nanchong, China.
Fangjun WangDepartment of Anaesthesiology, Affiliated Hospital, North Sichuan Medical College, Nanchong, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe aim of this study was to compare the postoperative analgesic effects of ultrasound-guided intercostal nerve block and transversus abdominis plane block in patients undergoing laparoscopic cholecystectomy.

methodsPatients undergoing laparoscopic cholecystectomy for chronic cholecystitis with gallstones were randomly allocated to ultrasound-guided T7-11 intercostal nerve block or subcostal transversus abdominis plane block (both with 40 ml 0.3% ropivacaine). The primary outcome was the dose of tramadol required for remedial analgesia 24 h after surgery. The secondary outcomes included visual analogue scale scores at different time points after surgery, the time of initial use of tramadol for postoperative analgesia, patient satisfaction with postoperative pain control, the time to flatus, and the incidence of postoperative adverse events.

resultsA total of 64 patients were included. Compared with the transversus abdominis plane block group, the intercostal nerve block group had lower visual analogue scale scores at 3 h after surgery (mean(s.d.) of 2.4(0.8) versus 1.6(0.6)), 6 h after surgery (mean(s.d.) of 2.2(0.3) versus 1.4(0.6)), and 8 h after surgery (mean of 1.7(0.5) versus 1.3(0.4)) (P < 0.001, P < 0.001, and P = 0.002 respectively), a lower dose of tramadol for remedial analgesia within 24 h after surgery (median of 100 (interquartile range 0-100) versus 50 (interquartile range 0-50) mg) (P = 0.012), and a significantly delayed time of initial use of tramadol for postoperative analgesia (mean(s.d.) of 9.1(7.5) versus 14.6(8.3) h) (P = 0.015). The incidences of postoperative dizziness and postoperative nausea and vomiting were higher in the transversus abdominis plane block group (47% and 69% respectively) than in the intercostal nerve block group (19% and 41% respectively) (P = 0.032 and 0.035 respectively). Patient satisfaction with postoperative analgesia was higher in the intercostal nerve block group than in the transversus abdominis plane block group (P = 0.037). The time to flatus was similar between the two groups (P > 0.050).

conclusionCompared with ultrasound-guided subcostal transversus abdominis plane block, ultrasound-guided T7-11 intercostal nerve block with 0.3% ropivacaine provides better postoperative analgesia, requires a lower dose of tramadol for remedial analgesia 24 h after surgery, and significantly delays the time of initial use of tramadol for postoperative analgesia.

Indexed as

Cholecystectomy, LaparoscopicCholecystitisNerve BlockPostoperative PainAbdominal MusclesAdultAgedAnalgesics, OpioidAnesthetics, LocalFemaleHumansIntercostal NervesMaleMiddle AgedPain MeasurementPatient SatisfactionAnalgesics, OpioidAnesthetics, LocalRopivacaineTramadol

Identifiers

PMID40591374
PMCPMC12211735

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LicenceCC BY
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Registered trials

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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.