Evidence map›Paper›PMID 30112165›Full record

ArticleMedical gas research

Ondansetron 8 mg and 4 mg with normal saline against post-operative headache and nausea/vomiting after spinal anesthesia: a randomized double-blind trial.

Shirin Pazoki, Hesameddin Modir, Alireza Kamali, Ashraf Zamani, Marzieh Shahidani

Open access · hybridAbstract read
In one paragraph

Article in Medical gas research. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 2 pooled it
1.9field-weighted citation impact, top 15% 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.

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

9 citing papers in PubMed, 2 syntheses or guidelines pooled it, 24 citations in OpenAlex.

  1. Major Adverse Cardiac Events with Ondansetron: A Systematic Review.Clinical pharmacology and therapeutics · 2026
    Pooled it
  2. Pooled it
  3. Trial
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  7. Review
  8. Review
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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 1 institution in 1 country.

Shirin PazokiDepartment of Anesthesiology and Critical Care, Arak University of Medical Sciences, Arak, Iran.
Hesameddin ModirDepartment of Anesthesiology and Critical Care, Arak University of Medical Sciences, Arak, Iran.ORCID 0000-0003-2870-2082
Alireza KamaliDepartment of Anesthesiology and Critical Care, Arak University of Medical Sciences, Arak, Iran.
Ashraf ZamaniDepartment of gynecology, Arak University of Medical Sciences, Arak, Iran.
Marzieh ShahidaniDepartment of Anesthesiology and Critical Care, Arak University of Medical Sciences, Arak, Iran.
Arak University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The study aims to evaluate the efficacy of ondansetron in preventing post-spinal headache, considering the high prevalence of the headache in pregnant women and the common use of the adjuvants for prophylaxis against post-operative nausea and vomiting (PONV). This double-blind clinical trial included the 195 patients who were referred to Taleghani Hospital (in Arak, Iran) for cesarean section (C/S) under spinal anesthesia, and then the subjects were assigned to three equally sized groups using block randomization. Participants in the first, second, and control groups received 8 mg, 4 mg of ondansetron, and normal saline, respectively, 5 minutes before surgery. A final volume of 5 cc was prepared by adding normal saline. Participants were examined for headache one week after surgery, and then data analysis was performed using SPSS 20. The incidence of post-spinal headache was significantly higher in the placebo group than in the ondansetron 8-mg and 4-mg groups at 24 hours after surgery (

Indexed as

cesareanondansetronpost-operative nauseapost spinal headachevomiting

Identifiers

PMID30112165
PMCPMC6070840
OpenAlexW2810103599

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
Read underepoch 390

Registered trials

None linked

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.