Evidence map›Paper›PMID 29740737›Full record

Trial reportGeneral thoracic and cardiovascular surgery2018

Comparison of the analgesic effects of modified continuous intercostal block and paravertebral block under surgeon's direct vision after video-assisted thoracic surgery: a randomized clinical trial.

Yuka Kadomatsu, Shoichi Mori, Harushi Ueno, Mika Uchiyama, Kenji Wakai

Registry-linked trialAbstract readComparative StudyRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in General thoracic and cardiovascular surgery, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06838026 (Internal, External Intercostal Nerve Block and Intercostal Catheter for Pain Management After Uniportal VATS), which is not on this map. Cited by 12 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 3 pooled it
2.4field-weighted citation impact, top 12% of its field
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.

NCT06838026 nanot yet recruitingnot on this mapstarted 2025, after this paper: background citation

Internal, External Intercostal Nerve Block and Intercostal Catheter for Pain Management After Uniportal VATS: A Clinical Trial

TypeinterventionalSponsorAl-Quds UniversityRan2025 to 2026Enrolled90ConditionsThoracic, Pain, Postoperative, Analgesia, Satisfaction, PatientArmsExternal Intercostal Nerve Block, Internal Intercostal Nerve Block, Intercostal Catheter
3 · Its place in the literature

Who cites it

12 citing papers in PubMed, 3 syntheses or guidelines pooled it, 25 citations in OpenAlex.

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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

5 authors at 2 institutions in 1 country.

Yuka KadomatsuDepartment of Thoracic Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan. yuka.kadomatsu@gmail.com.
Shoichi MoriDepartment of Thoracic Surgery, Japanese Red Cross Nagoya Daiichi Hospital, Mitishita-cho 3-35, Nakamura-ku, Nagoya, 453-8511, Japan.
Harushi UenoDepartment of Thoracic Surgery, Japanese Red Cross Nagoya Daiichi Hospital, Mitishita-cho 3-35, Nakamura-ku, Nagoya, 453-8511, Japan.
Mika UchiyamaDepartment of Thoracic Surgery, Japanese Red Cross Nagoya Daiichi Hospital, Mitishita-cho 3-35, Nakamura-ku, Nagoya, 453-8511, Japan.
Kenji WakaiDepartment of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan.
Japanese Red Cross Nagoya Daiichi Hospital · JPNagoya University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveClinical evidence comparing paravertebral (PVB) and continuous intercostal nerve (ICB) blocks for pain management post video-assisted thoracic surgery (VATS) is limited. This study confirms the analgesic effect of ICB using two catheters is not inferior to that of PVB under direct vision.

methodsFifty patients who underwent VATS lobectomy from July 2015 to March 2016 were prospectively recruited and randomly assigned to PVB and ICB groups. Postoperative pain was assessed using the visual analog scale (VAS). VAS score at rest at 24 h was the primary endpoint. Data on time required for catheter insertion, adverse effects, and frequency of additional analgesics as secondary endpoints were also collected. Noninferiority was assessed by adding a VAS margin of 15 mm to the PVB group.

resultsNo significant differences were observed between the VAS scores of the two groups except at 48 h after surgery, with a margin noted for the PVB group. No significant differences were detected in the frequency of additional analgesics and occurrence of adverse effects.

conclusionsOur results could not clearly establish noninferiority of ICB to PVB. Improvements in ICB may be necessary for it to be used as an alternative method to PVB.

Indexed as

Thoracic Surgery, Video-AssistedAgedAnalgesics, OpioidAnti-Inflammatory Agents, Non-SteroidalCatheterization, PeripheralDrug Therapy, CombinationFemaleFlurbiprofenHumansIntercostal NervesLung DiseasesMaleMiddle AgedNerve BlockPain MeasurementPentazocineAnalgesics, OpioidAnti-Inflammatory Agents, Non-SteroidalFlurbiprofenflurbiprofen axetilPentazocineIntercostal nerve blockLobectomyParavertebral blockPostoperative pain managementVideo-assisted thoracic surgery

Identifiers

PMID29740737
OpenAlexW2799284001

What OpenQuestion holds

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Read underepoch 390

Registered trials

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.