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NCT03631329
Predictability of Preoperative Carotid Artery Corrected Flow Time for Hypotension After Spinal Anesthesia in Patients Undergoing Cesarean Section
trial testing Doppler sonographic measurement in Cesarean Section in 38 participants. Completed in 7 November 2019.
7 November 2019
Quick facts
| Lead sponsor | Yonsei University |
|---|---|
| Status | Completed |
| Study type | OBSERVATIONAL |
| Enrollment | 38 |
| Start date | 4 September 2018 |
| Primary completion | 7 November 2019 |
| Estimated completion | 7 November 2019 |
| Sites | 1 location across South Korea |
Drugs / interventions tested
- Doppler sonographic measurement
Conditions studied
- Cesarean Section — all drugs for Cesarean Section →
Sponsor
Yonsei University
Who can join
Adults 20 to 40, female only, with Cesarean Section. Patients with the condition only — healthy volunteers not accepted.
Sponsor's own description
The purpose of this study was to investigate the incidence of hypotension after spinal anesthesia in patients undergoing cesarean section as predicted by preoperative carotid artery corrected flow time measured by Doppler ultrasound. Before entering the operation room, Two inspectors perform two measurements of carotid artery corrected blood flow time respectively, and an average of the four measurements is calculated and analyzed. At this time, the patient's posture is supine, and the head is turned about 30 degrees to the left. Corrected blood flow time (FTc) is measured using carotid ultrasound as previously described by Blehar and colleagues. Corrected blood flow time is calculated by Bazett's formular and Wodey's formular by evaluating a single cycle after several successive cycles have reached a stable and acceptable quality level. The occurrence of hypotension is recorded from the spinal anesthetic injection until the fetus is delivered. The definition of hypotension after spinal anesthesia is that the systolic blood pressure drops to 80 mmHg, less than 75% of the baseline value, or even if it does not meet the former criteria, symptoms that are consistent with hypotension (dizziness, dizziness, dyspnea, nausea or vomiting).
Publications & conference data
1 peer-reviewed publication reference this trial (live from Europe PMC):
-
Predictability of preoperative carotid artery-corrected flow time for hypotension after spinal anaesthesia in patients undergoing caesarean section: A prospective observational study.
Kim HJ, Choi YS, Kim SH, Lee W, et al · · 2021 · cited 15× · PMID 33122575 · DOI 10.1097/eja.0000000000001376
Verify or expand the search:
- PubMed search for NCT03631329
- Europe PMC full search
- ASCO Meeting Library
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Related trials
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Currently open trials in the same condition.
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Other Yonsei University trials
Trials by the same sponsor.
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- NCT07507188 — Collaborative Clinical-translational Cohort of Amivantamab Plus Lazertinib and Amivantamab Plus Chemotherapy in Patients · Phase 2 · not yet recruiting
Verify against primary sources
- ClinicalTrials.gov — authoritative US registry record
- WHO ICTRP — international registry index
- EU Clinical Trials Register
- Sponsor press releases (Google)
- Trial protocol + status: ClinicalTrials.gov NCT03631329 (US National Library of Medicine, public domain)
- Publications: Europe PMC API search by NCT ID, retrieved 10 June 2026
- Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
- Sponsor: as reported to ClinicalTrials.gov by Yonsei University
- Last refreshed: 7 January 2020
Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT03631329.
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