UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000054629
Receipt number R000062424
Scientific Title Predicting the appropriate cuff volume for endotracheal tubes using machine learning
Date of disclosure of the study information 2024/06/13
Last modified on 2025/12/12 10:37:16

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Basic information

Public title

Predicting the appropriate cuff volume for endotracheal tubes using machine learning

Acronym

Predicting the appropriate cuff volume for endotracheal tubes using machine learning

Scientific Title

Predicting the appropriate cuff volume for endotracheal tubes using machine learning

Scientific Title:Acronym

Predicting the appropriate cuff volume for endotracheal tubes using machine learning

Region

Japan


Condition

Condition

Patients who undergo surgery under general anesthesia with tracheal intubation

Classification by specialty

Anesthesiology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

Using three models, supervised learning will be conducted to predict the cuff volume needed to achieve optimal cuff pressure during endotracheal intubation. These models will be compared to determine the one with the best accuracy.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

mean squared error

Key secondary outcomes



Base

Study type

Interventional


Study design

Basic design

Single arm

Randomization

Non-randomized

Randomization unit


Blinding

Open -no one is blinded

Control

Uncontrolled

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

1

Purpose of intervention

Diagnosis

Type of intervention

Device,equipment

Interventions/Control_1

use of endotracheal tubes during tracheal intubation procedure

Interventions/Control_2


Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

20 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

Patients aged 20 yr or older, with ASA physical status I-III, scheduled to receive general anesthesia and tracheal intubation

Key exclusion criteria

Patients with pharyngeal pathology, at risk of pulmonary aspiration of gastric contents,
or predicted difficult mask ventilation

Target sample size

250


Research contact person

Name of lead principal investigator

1st name Yuji
Middle name
Last name Soeda

Organization

Kitakyushu General Hospital

Division name

Department of Anesthesia

Zip code

802-8517

Address

1-1 Higashijono-machi, Kokurakita-ku, Kitakyushu

TEL

093-921-0560

Email

soecchi_y@yahoo.co.jp


Public contact

Name of contact person

1st name Yuji
Middle name
Last name Soeda

Organization

Kitakyushu General Hospital

Division name

Department of Anesthesia

Zip code

802-8517

Address

1-1 Higashijono-machi, Kokurakita-ku, Kitakyushu

TEL

093-921-0560

Homepage URL


Email

soecchi_y@yahoo.co.jp


Sponsor or person

Institute

Kitakyushu General Hospital

Institute

Department

Personal name



Funding Source

Organization

Kitakyushu General Hospital

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Ethics committee of Kitakyushu General Hospital

Address

1-1 Higashijono-machi, Kokurakita- ku, Kitakyushu

Tel

093-921-0560

Email

y-kuga@kitakyu-hp.or.jp


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions

北九州総合病院(福岡県)


Other administrative information

Date of disclosure of the study information

2024 Year 06 Month 13 Day


Related information

URL releasing protocol

None

Publication of results

Unpublished


Result

URL related to results and publications

None

Number of participants that the trial has enrolled

250

Results

We analyzed 250 cases and compared four machine learning models to predict optimal cuff volume from preoperative data. Support vector regression showed the lowest MSE, though differences among models were small. Linear regression was statistically valid, with age, tracheal diameter, and sex as significant predictors.

Results date posted

2025 Year 12 Month 12 Day

Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics

The study included 250 adult patients who underwent surgery under general anesthesia with endotracheal intubation between June and October 2024. Preoperative variables collected were age, sex, height, weight, serum albumin level, and tracheal diameter. A 7.5-mm endotracheal tube was used for men and a 7.0-mm tube for women.

Participant flow

A total of 250 cases were enrolled. Among them, 200 cases were randomly allocated for model development, and the remaining 50 cases were used for validation. No participants were excluded.

Adverse events

None

Outcome measures

The primary outcome was the mean squared error of cuff volume prediction for each machine learning model. Secondary outcomes included the coefficient of determination of the linear regression model, statistical significance of predictors, and residual analyses assessing linearity, homoscedasticity, and normality.

Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Preinitiation

Date of protocol fixation

2024 Year 05 Month 27 Day

Date of IRB


Anticipated trial start date

2024 Year 06 Month 12 Day

Last follow-up date

2024 Year 11 Month 30 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2024 Year 06 Month 11 Day

Last modified on

2025 Year 12 Month 12 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000062424