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To see the effectiveness of ondansetron in preventing fall in blood pressure and heart rate in patients after giving spinal anesthesia for surgeries below the umbilicus

A study on the effectiveness of ondansetron in attenuating post spinal hypotension, bradycardia in patients undergoing infra umbilical surgery under spinal anesthesia. - NIL

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
CTRI
Registry ID
CTRI/2026/06/111663
Enrollment
70
Registered
2026-06-02
Start date
Unknown
Completion date
Unknown
Last updated
2026-06-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Health Condition 1: O- Medical and Surgical

Interventions

Intervention1: Intravenous Ondansetron 8mg (4ml): Administered at least 5 minutes before performing spinal anaesthesia Given via a labeled 4ml syringe by the monitoring anaesthesiologist Intervention2

Sponsors

T S Misra medical college and hospital
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: -Patients of either gender undergoing elective infra umbilical procedure under spinal Anaesthesia. -Age between 20-60years. -ASA Grade I or II patients with no contraindication for central neuraxial blockade. -Patients providing informed written consent.

Exclusion criteria

Exclusion criteria: ASA Grade III or IV. Pregnant patients Patients who are hemodynamically unstable. Patients with study drug allergy. Patients with difficulty in communication.

Design outcomes

Primary

MeasureTime frame
The purpose of this prospective, cross sectional, study is to compare the efficacy of i.v. ondansetron with a placebo in reducing the incidence of hypotension, bradycardia caused by spinal anesthesia as primary outcomeTimepoint: All hemodynamic parameters such as Heart Rate, Systolic blood pressure (SP), diastolic blood pressure (DBP), and Mean Arterial ressure (MAP) will be recorded from baseline, 1 min, 3min, 6 min and so on tor every 3 min for 30 min and after 30 min every 5 min till 40 min after spin l anaesthesia.

Secondary

MeasureTime frame
perioperative shivering as secondary outcomeTimepoint: 12 MONTHS

Countries

India

Contacts

Public ContactDr Jasmine Kaur

T S Misra medical college and hospital

docsubir@gmail.com6909510178

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Jun 29, 2026