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Respiratory Depression of Remimazolam vs. Propofol for Monitored Anesthesia Care

Incidence of Respiratory Depression of Remimazolam Compared With Propofol for Monitored Anesthesia Care During Hysteroscopy

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07076628
Enrollment
76
Registered
2025-07-22
Start date
2023-08-24
Completion date
2025-05-30
Last updated
2025-07-22

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

Conditions

Hemodynamics Instability, Hysteroscopic Surgery, Propofol, Remimazolam, Respiratory Insufficiency

Brief summary

The comparison of incidence of respiratory depression between remimazolam and propofol under monitored anesthesia care for hysteroscopic surgery

Detailed description

* Non-invasive blood pressure, electrocardiogram, and oxygen saturation sensors are attached. * Wear an oxygen mask (5L per minute), and place the sampling line for end-tidal carbon dioxide partial pressure measurement inside the nose. * Check the randomization table to determine the drug to be administered, and prepare propofol or remimazolam accordingly. * Record the baseline values (0 min). * Start administration of Remifentanil. ⑥ Administer anesthesia to adjust the maintenance dose to reach a sedation level of 2 or less on the MOAA/S scale. ⑦ Adjust the remifentanil dose according to the patient's response ⑧ When the target sedation level is reached, the surgical preparation process and surgery begin, and the study variables are observed and recorded at 5-minute intervals. ⑨ Stop drug administration upon end of surgery. ⑩ After confirming proper recovery of consciousness and spontaneous breathing, leave the recovery room. ⑪ Before leaving the recovery room, check the complete recovery and investigate the patient's satisfaction with anesthesia.

Interventions

DRUGPropofol

Propofol infusion with remifentanil

DRUGRemimazolam

Remimazolam infusion with remifentanil

Sponsors

DongGuk University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
DOUBLE (Subject, Investigator)

Masking description

Care giver will notice which drug will be given to the patients because of the color (White vs clear) and infusion doses of the drugs.

Intervention model description

Patients will be enrolled to one of the two drug groups with randomization.

Eligibility

Sex/Gender
FEMALE
Age
19 Years to 60 Years
Healthy volunteers
No

Inclusion criteria

* ASA PS 1-2 * Elective hysteroscopic surgery under monitored anesthesia care * No drug abuse history

Exclusion criteria

* BMI \> 30 kg/m2 * Hepatic or renal insufficiency * Alcohol abuse * Respiratory, hemodynamic compromise, or diseases * History of general/regional anesthesia during the last month * A patient who is taking sedatives or analgesics * Under the investigator's judgment

Design outcomes

Primary

MeasureTime frameDescription
Respiratory insufficiency before surgeryFrom the beginning of drug infusion until the moment of starting surgery (assessed up to 30 minutes)Respiratory rate \< 9/min, Apnea \> 29 s, ETCO2 \> 54 mmHg, SpO2 \< 96%
Respiratory insufficiency during surgeryFrom the beginning of the surgery until the end of the drug infusion (assessed up to 60 minutes)Respiratory rate \< 9/min, Apnea \> 29 s, ETCO2 \> 54 mmHg, SpO2 \< 96%

Secondary

MeasureTime frameDescription
HypotensionThrough the Monitored Anesthetic Care (From the beginning of drug infusion until the end of the drug infusion) up to 60 minutes\< 90 mmHg during the Monitored Anesthetic Care
BradycardiaThrough the Monitored Anesthetic Care (From the beginning of drug infusion until the end of the drug infusion) up to 60 minutesHeart rate \< 50/min during the Monitored Anesthetic Care
TachycardiaThrough the Monitored Anesthetic Care (From the beginning of drug infusion until the end of the drug infusion) up to 60 minutesHeart rate \> 100/min during the Monitored Anesthetic Care
Pain on injectionJust after the beginning of drug infusionPatients will answer just after drug infusion begins (Yes or No)
Patient satisfaction with Monitored Anesthetic CareJust before leaving the recovery room4-point rating scale on the Satisfaction with MAC (4: Fully satisfied, 3: Partially satisfied, 2: Partially unsatisfied, 1: Totally unsatisfied)
Postoperative Nausea/Vomiting (PONV)During staying at the recovery room (up to 60 minutes)Patients are asked to answer yes/no on PONV, just before leaving the recovery room.
Maximum ETCO2Through the Monitored Anesthetic Care (From the beginning of drug infusion until the end of the drug infusion) up to 60 minutesETCO2 will be measured every single respiration in the nasal cavity
HypertensionThrough the Monitored Anesthetic Care (From the beginning of drug infusion until the end of the drug infusion) up to 60 minutes\> 140 mmHg during Monitored Anesthetic Care (MAC)

Countries

South Korea

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026