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The predictive value of combined perfusion index and heart rate changes for hypotension after spinal anesthesia in cesarean delivery at high altitude: a prospective observational study.

The predictive value of combined perfusion index and heart rate variability for hypotension after spinal anesthesia in cesarean delivery at high altitude: A prospective observational study.

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2600119081
Enrollment
Unknown
Registered
2026-02-14
Start date
2026-02-15
Completion date
Unknown
Last updated
2026-02-16

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

Conditions

hypotension with spinal anesthesia after cesarean section

Interventions

None Hypotension Group:None

Sponsors

Xizang Hospital of West China Second University Hospital, Sichuan University & Xizang Autonomous Region Women’s and Children’s Hospital
Lead Sponsor

Eligibility

Sex/Gender
Female
Age
18 Years to 45 Years

Inclusion criteria

Inclusion criteria: 1. Age 18-45 years old. 2. ASA classification II-III. 3. Single, full-term pregnancy (>=37 weeks). 4. elective caesarean section under combined lumbar and rigid anaesthesia. 5. Voluntary participation and signed written informed consent.

Exclusion criteria

Exclusion criteria: 1. Absolute or relative contraindications to intrathecal anaesthesia (e.g. coagulation disorders, puncture site infection, severe spinal deformity, increased intracranial pressure). 2. hypertensive disorders during pregnancy, pre-eclampsia, eclampsia. 3. Known severe cardiovascular or respiratory diseases (e.g. cardiac function class III-IV, severe arrhythmia, moderate or higher pulmonary hypertension, poorly controlled asthma). 4. Preoperative uncontrolled hypertension (SBP > 160 mmHg) or hypotension (SBP < 90 mmHg). 5. Long-term use of medications that may affect heart rate and vascular tone (e.g., beta-blockers, calcium channel blockers). 6. Emergency surgery, multiple pregnancies, suspected macrosomia or placental abnormalities. 7. Other conditions that, in the judgement of the investigator, make participation in this study inappropriate.

Design outcomes

Primary

MeasureTime frame
Perfusion Index;Heart Rate;Hypotension;

Countries

China

Contacts

Public ContactYixiang Hou

Xizang Hospital of West China Second University Hospital, Sichuan University & Xizang Autonomous Region Women’s and Children’s Hospital

drhou230330@163.com+86 186 5645 7201

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 19, 2026