Evidence map›Paper›PMID 31198257›Full record

ArticleAnesthesia, essays and researches

Effect of Intravenous Ondansetron on Spinal Anesthesia-Induced Hypotension and Bradycardia: A Randomized Controlled Double-Blinded Study.

Chandra Mouli Tatikonda, Geetha C Rajappa, Prapti Rath, Mohammad Abbas, Vishnu S Madhapura, Nori Venu Gopal

Open access · hybridAbstract read
In one paragraph

Article in Anesthesia, essays and researches. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 3 pooled it
3.3field-weighted citation impact, top 8% 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

10 citing papers in PubMed, 3 syntheses or guidelines pooled it, 28 citations in OpenAlex.

  1. Major Adverse Cardiac Events with Ondansetron: A Systematic Review.Clinical pharmacology and therapeutics · 2026
    Pooled it
  2. Prevention of hypotension after neuraxial anesthesia in nonobstetric surgery: a systematic review.Canadian journal of anaesthesia = Journal canadien d'anesthesie · 2025
    Pooled it
  3. 5-HTBMJ open · 2020
    Pooled it
  4. Trial
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Granisetron versus Ondansetron: Comparison of 5HTPakistan journal of medical sciences
    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

6 authors at 2 institutions in 1 country.

Chandra Mouli TatikondaDepartment of Anaesthesiology, GSL Medical College, Rajahmundry, Andhra Pradesh, India.
Geetha C RajappaDepartment of Anaesthesiology, MS Ramaiah Medical College, Bengaluru, Karnataka, India.
Prapti RathDepartment of Anaesthesiology, MS Ramaiah Medical College, Bengaluru, Karnataka, India.
Mohammad AbbasDepartment of Anaesthesiology, MS Ramaiah Medical College, Bengaluru, Karnataka, India.
Vishnu S MadhapuraDepartment of Anaesthesiology, Rangadore Memorial Hospital, Bengaluru, Karnataka, India.
Nori Venu GopalDepartment of Anaesthesiology, GSL Medical College, Rajahmundry, Andhra Pradesh, India.
GSL Medical College & General Hospital · INM.S. Ramaiah Medical College · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSpinal anesthesia is a safe anesthetic technique commonly practiced. However, it is associated with hypotension (33%), bradycardia (13%), and shivering which are induced by hypovolemia, sympathetic blockade, and Bezold-Jarisch reflex through intracardiac serotonin (5HT3) receptors and vagus nerve.

aimTo study the effect of intravenous (i.v.) ondansetron on hypotension and bradycardia induced by spinal anesthesia. SETTING AND

designThis was a randomized controlled double-blinded study done in a tertiary care teaching hospital.

methodsOf 140 patients, 70 in Group A received 2 mL of i.v. ondansetron 4 mg and 70 in the Group B received 2 mL of i.v. normal saline. 3 mL of 0.5% hyperbaric bupivacaine was injected intrathecally. Measurements of blood pressure and heart rate (HR) were taken every 3 min for 30 min after spinal anesthesia was performed. Mean arterial pressure (MAP) drop more than 20% was considered as incidence of hypotension and ephedrine 6 mg i.v. was given. HR drop >20% was regarded as bradycardia and atropine 0.5 mg i.v. was given. STATISTICAL TESTS: Quantitative data were analyzed using ANOVA test and qualitative data were analyzed using Chi-square test.

resultsBoth groups are comparable in demographic data. Four (5.7%) patients in Group B and no patients in Group A had incidence of bradycardia and atropine requirement (

conclusionOur study indicates that prophylactic use of ondansetron before spinal anesthesia significantly reduces the requirement of ephedrine and shivering.

Indexed as

Bezold–Jarisch reflexondansetronspinal anesthesia

Identifiers

PMID31198257
PMCPMC6545933
OpenAlexW2941416663

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.