Evidence map›Paper›PMID 34034672›Full record

SynthesisBMC anesthesiology2021

Post-operative pain management modalities employed in clinical trials for adult patients in LMIC; a systematic review.

Gauhar Afshan, Robyna Irshad Khan, Aliya Ahmed, Ali Sarfraz Siddiqui, Azhar Rehman, Syed Amir Raza, Rozina Kerai, Khawaja Mustafa

Registry-linked trialOpen access · goldAbstract readSystematic Review
In one paragraph

Synthesis in BMC anesthesiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07337330 (Comparative Study Between Ultrasound Guided External Oblique Intercostal Plane Block and Erector Spinae Block for Postoperative Analgesia in Hepatectomy Incision in Cancer Patients), which is not on this map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.6field-weighted citation impact, top 34% 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.

NCT07337330 nanot yet recruitingnot on this mapstarted 2026, after this paper: background citation

Comparative Study Between Ultrasound Guided External Oblique Intercostal Plane Block and Erector Spinae Block for Postoperative Analgesia in Hepatectomy Incision in Cancer Patients

TypeinterventionalSponsorNational Cancer Institute, EgyptRan2026 to 2026Enrolled52ConditionsPain, Cancer, Hepatectomy, Nerve BlockArmsUltrasound guided external oblique intercostal (EOI) plane block, Ultrasound guided erector spinae block
3 · Its place in the literature

Who cites it

1 citing paper in PubMed, 5 citations in OpenAlex.

  1. Article
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 at 1 institution in 1 country.

Gauhar AfshanDepartment of Anaesthesiology, 2nd floor Private Wing, Aga Khan University, P.O. Box 3500, Stadium Road, Karachi, 74800, Pakistan. gauhar.afshan@aku.edu.ORCID 0000-0001-8676-8288
Robyna Irshad KhanDepartment of Anaesthesiology, 2nd floor Private Wing, Aga Khan University, P.O. Box 3500, Stadium Road, Karachi, 74800, Pakistan.
Aliya AhmedDepartment of Anaesthesiology, 2nd floor Private Wing, Aga Khan University, P.O. Box 3500, Stadium Road, Karachi, 74800, Pakistan.
Ali Sarfraz SiddiquiFaculty of Health Sciences, Aga Khan University, P.O. Box 3500, Stadium Road, Karachi, Pakistan.
Azhar RehmanFaculty of Health Sciences, Aga Khan University, P.O. Box 3500, Stadium Road, Karachi, Pakistan.
Syed Amir RazaFaculty of Health Sciences, Aga Khan University, P.O. Box 3500, Stadium Road, Karachi, Pakistan.
Rozina KeraiDepartment of Anaesthesiology, 2nd floor Private Wing, Aga Khan University, P.O. Box 3500, Stadium Road, Karachi, 74800, Pakistan.
Khawaja MustafaDepartment of Anaesthesiology, 2nd floor Private Wing, Aga Khan University, P.O. Box 3500, Stadium Road, Karachi, 74800, Pakistan.
Aga Khan University · PK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundUnrelieved postoperative pain afflicts millions each year in low and middle income countries (LMIC). Despite substantial advances in the study of pain, this area remains neglected. Current systematic review was designed to ascertain the types of clinical trials conducted in LMIC on postoperative pain management modalities over the last decade.

methodsA comprehensive search was performed in June 2019 on PubMed, Cochrane Library, CINAHL Plus, and Web of Science databases to identify relevant trials on the management of postoperative pain in LMIC. Out of 1450 RCTs, 108 studies were reviewed for quality evidence using structured form of critical appraisal skill program. Total of 51 clinical trials were included after applying inclusion/exclusion criteria.

resultsResults are charted according to the type of surgery. Eleven trials on laparoscopic cholecystectomy used multimodal analgesia including some form of regional analgesia. Different analgesic modalities were studied in 4 trials on thoracotomy, but none used multimodal approach. In 11 trials on laparotomy, multimodal analgesia was employed along with the studied modalities. In 2 trials on hysterectomy, preemptive pregabalin or gabapentin were used for reduction in rescue analgesia. In 13 trials on breast surgical procedures and 10 on orthopaedic surgery, multimodal analgesia was used with some form of regional analgesia.

conclusionWe found that over the past 10 years, clinical trials for postoperative pain modalities have evolved in LMIC according to the current postoperative pain management guidelines i.e. multi-modal approach with some form of regional analgesia. The current review shows that clinical trials were conducted using multimodal analgesia including but not limited to some form of regional analgesia for postoperative pain in LMIC however this research snapshot (of only three countries) may not exactly reflect the clinical practices in all 47 countries. Post Operative Pain Management Modalities Employed in Clinical Trials for Adult Patients in LMIC; A Systematic Review.

Indexed as

Developing CountriesHealthcare DisparitiesAdultComorbidityHumansPain ManagementPostoperative PainPovertyLMICMultimodal analgesiaPost-operative pain

Identifiers

PMID34034672
PMCPMC8152022
OpenAlexW3116244335

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.