Clinical trial NCT06769932: Abdominal Muscle Volume and a Neuromuscular Blocking Agent
Official title: Relationship Between Muscle Mass in Preoperative Computed Tomography and a Neuromuscular Blocking Agent Dose Required for Maintaining Deep Neuromuscular Blockage: a Prospective Observational Study.
Study type: OBSERVATIONAL
Overall status: NOT_YET_RECRUITING
Conditions: Neuromuscular Blockade
Lead sponsor: Seoul National University Bundang Hospital
Sponsor class: OTHER
First posted: 2025-01-10
Enrollment: 90
Sex: ALL
Minimum age (years): 19
Maximum age (years): 80
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Observational model: COHORT
Time perspective: PROSPECTIVE
Sampling method: NON_PROBABILITY_SAMPLE
Study population: Patients scheduled for elective colon surgery under general anesthesia

Brief summary: With the recent development of image analysis and artificial intelligence, it has become possible to measure the muscle volume from preoperative computed tomography (CT) images. Therefore, in this study, the investigators quantify the muscle volume from preoperative CT images and analyze the correlation with the dose of neuromuscular blocking agent, rocuronium, required for maintaining deep neuromuscular blockade.

Detailed description: Deep neuromuscular blockade improves the condition of surgeon's surgical field during the surgery and reduces the acute postoperative pain. The dosage of neuromuscular blocking agent has been usually administered according to the patient's actual body weight, but even with the same body weight, the ratio of muscle to fat varies from individual to individual, and there are many differences depending on age, gender, and exercise level.

Therefore, if the dose of neuromuscular blocking agent is administered according to actual body weight, additional doses may be required due to insufficient neuromuscular blockade, or excessive doses may occur. However, it was difficult to quantify the muscle mass, with the recent development of image analysis, it has become possible to measure the abdominal muscle volume from preoperative computed tomography (CT) images. Therefore, in this study, the investigators quantify the muscle volume from preoperative CT images and analyze the correlation with the dose of neuromuscular blocking agent, rocuronium, required for maintaining deep neuromuscular blockade.

Eligibility criteria: Inclusion Criteria:

* Those who voluntarily agreed and signed the written consent form before participating in the study
* American Society of Anesthesiologists physical class (ASA class) 1-3
* Patients scheduled for elective colon surgery under general anesthesia
* Patients undergoing abdominal computed tomography for routine preoperative preparation

Exclusion Criteria:

* Pregnant women
* Decreased renal function (GFR\<60mL/min/1.73m2).
* Patients taking drugs that affect deep neuromuscular blockade
* Patients with a history of neuromuscular and muscle disorders

Primary outcomes:
measure: muscle volume
timeFrame: intraoperative period
Secondary outcomes:
Other outcomes:
Locations:
city: Seongnam-si
country: Korea, Republic of
facility: Seoul National University Bundang Hospital
state: Gyunggi-do
Study officials:
References: