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Analysis of Risk Factors and Construction of a Prediction Model for Post-Spinal Anesthesia Hypotension Based on Machine Learning

Analysis of Risk Factors and Construction of a Prediction Model for Post-Spinal Anesthesia Hypotension Based on Machine Learning

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2500111734
Enrollment
Unknown
Registered
2025-11-05
Start date
2025-11-15
Completion date
Unknown
Last updated
2025-11-11

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

Conditions

Post-spinal anesthesia hypotension

Interventions

Sponsors

The 900th Hospital of the Joint Logistics Support Force of the People's Liberation Army of China
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. Non-cesarean surgical patients who underwent spinal anesthesia at our hospital during the study period, including those from orthopedics, general vascular surgery, general gastrointestinal surgery, urology, and burn and plastic surgery departments; 2. ASA physical status classification I–IV; 3. Adult patients aged >=18 years; 4. Individuals in whom continuous non-invasive systolic, diastolic, and mean arterial pressures could be recorded.

Exclusion criteria

Exclusion criteria: 1. Patients with contraindications to spinal anesthesia, such as coagulopathy or infection; 2. Patients unable to cooperate with the study or with psychiatric disorders; 3. Patients under 18 years of age; 4. Cases in which the originally planned anesthesia technique was changed to, or combined with, another method for any reason during the procedure; 5. Patients who refused to participate in the study.

Design outcomes

Primary

MeasureTime frame
Whether hypotension occurs within 20 minutes after the completion of spinal anesthesia or before surgical incision.;

Secondary

MeasureTime frame
Inferior Vena Cava Collapsibility Index (IVC-CI);Inferior vena cava-to-aorta diameter index;Height;Weight;Preoperative fluid fasting duration;Preoperative fasting time;

Countries

China

Contacts

Public ContactWang Liping

The 900th Hospital of the Joint Logistics Support Force of the People's Liberation Army of China

wlping0716@163.com+86 152 8007 6362

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026