Skip to content

Effects of Intraoperative Hypoxia and Hypotension in Obese Patients Undergoing Hysteroscopic Surgery: A Comparison of Ciprofol and Nasal High-Flow Oxygen Therapy

Effects of Intraoperative Hypoxia and Hypotension in Obese Patients Undergoing Hysteroscopic Surgery: A Comparison of Ciprofol and Nasal High-Flow Oxygen Therapy

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2500113857
Enrollment
Unknown
Registered
2025-12-04
Start date
2025-12-04
Completion date
Unknown
Last updated
2026-06-01

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

Conditions

Hysteroscopy

Interventions

Ciprofol + High-flow group:Induction: High-flow oxygen at 10 L/min for 10 minutes pre-oxygenation + intravenous infusion of dexmedetomidine 1 µg/kg over 10 minutes
Induction: Oxygen flow adjusted to 60 L/min, Sufentanil 0.1 µg/kg + Ciprofol 0.2–0.4 mg/kg
Maintenance: Ciprofol 0.4–0.6 mg/(kg·h) + Dexmedetomidine 5 ml/h
Ciprofol + Nasal Cannula group: Induction: Nasal cannula 6 L/min with 10 minutes pre-oxygenation + pump infusion of dexmedetomidine 1 µg/kg over 10 minutes
Induction: Nasal cannula 6 L/min, sufentanil 0.1 µg/kg + ciprofol 0.2–0.4 mg/kg
Maintenance: Ciprofol 0.4–0.6 mg/(kg·h) + dexmedetomidine 5 ml/h
Propofol + High-flow group: Induction: High-flow oxygen at 10 L/min for 10 minutes pre-oxygenation + intravenous infusion of dexmedetomidine 1 µg/kg over 10 minutes
Induction: Oxygen flow adjusted to 60 L/min, sufentanil 0.1 µg/kg + propofol 1–2 mg/kg
Maintenance: Propofol 2–4 mg/(kg·h) + dexmedetomidine 5 ml/h
Ciprofol + Nasal Cannula group:Pre-induction: Nasal cannula 6 L/min with 10 minutes pre-oxygenation + intravenous infusion of dexmedetomidine 1 µg/kg over 10 minutes
Induction: Nasal cannula 6 L/min, sufentanil 0.1 µg/kg + propofol 1-2 mg/kg
Maintenance: Propofol 2-4 mg/(kg·h) + dexmedetomidine 5 ml/h.

Sponsors

Baoding First Central Hospital
Lead Sponsor

Eligibility

Sex/Gender
Female
Age
18 Years to 80 Years

Inclusion criteria

Inclusion criteria: Inclusion criteria: Age 18–80 years; BMI >= 28 kg/m^2; ASA physical status classification I/II.

Exclusion criteria

Exclusion criteria: Exclusion criteria: Coagulation disorders or a tendency to epistaxis; Diagnosed respiratory conditions including asthma, bronchitis, emphysema, or chronic obstructive pulmonary disease; History of allergy to intravenous anaesthetics or opioid analgesics; Respiratory tract infection within the preceding two weeks; Two consecutive preoperative measurements of systolic blood pressure (SBP) > 180 mmHg and/or diastolic blood pressure (DBP) > 110 mmHg; Patients with severe obstructive sleep apnoea.

Design outcomes

Primary

MeasureTime frame
Blood pressure;Blood oxygen;

Secondary

MeasureTime frame
Heart rate;Time of successful anaesthetic induction;Time to wakefulness after discontinuation of medication;Total dose of ciprofol and propofol;Adverse events during induction (cough, hypotension, injection site pain, bradycardia) and number of supplementary induction sessions;The incidence of postoperative nausea and vomiting, uterine contractions (lower abdominal pain accompanied by a sensation of anal heaviness), and adverse events associated with high-flow nasal cannula oxygen therapy.;Physician satisfaction and patient satisfaction;

Countries

China

Contacts

Public ContactZhu Lei

Baoding First Central Hospital

1604092435@qq.com+86 155 1294 0256

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Jun 11, 2026