UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000055086
Receipt number R000062687
Scientific Title IMPACT OF MECHANICAL VENTILATION STRATEGY WITH ELECTRICAL IMPEDANCE TOMOGRAPHY IN PATIENTS AT HIGH RISK OF POSTOPERATIVE PULMONARY COMPLICATIONS: A FEASIBILITY STUDY
Date of disclosure of the study information 2024/07/26
Last modified on 2024/08/07 11:09:49

* This page includes information on clinical trials registered in UMIN clinical trial registed system.
* We don't aim to advertise certain products or treatments


Basic information

Public title

IMPACT OF MECHANICAL VENTILATION STRATEGY WITH ELECTRICAL IMPEDANCE TOMOGRAPHY IN PATIENTS AT HIGH RISK OF POSTOPERATIVE PULMONARY COMPLICATIONS: A FEASIBILITY STUDY

Acronym

IMPACT OF MECHANICAL VENTILATION STRATEGY WITH ELECTRICAL IMPEDANCE TOMOGRAPHY IN PATIENTS AT HIGH RISK OF POSTOPERATIVE PULMONARY COMPLICATIONS: A FEASIBILITY STUDY

Scientific Title

IMPACT OF MECHANICAL VENTILATION STRATEGY WITH ELECTRICAL IMPEDANCE TOMOGRAPHY IN PATIENTS AT HIGH RISK OF POSTOPERATIVE PULMONARY COMPLICATIONS: A FEASIBILITY STUDY

Scientific Title:Acronym

IMPACT OF MECHANICAL VENTILATION STRATEGY WITH ELECTRICAL IMPEDANCE TOMOGRAPHY IN PATIENTS AT HIGH RISK OF POSTOPERATIVE PULMONARY COMPLICATIONS: A FEASIBILITY STUDY

Region

Japan


Condition

Condition

Patients at high risk for postoperative plumonary complications

Classification by specialty

Intensive care medicine

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

Many patients admitted to the postoperative ICU require ventilator ventilation. Still, inappropriate PEEP (Positive End-Expiratory Pressure) settings are known to cause dorsal atelectasis and ventral hyperinflation, resulting in inhomogeneous ventilation distribution. EIT (Electrical Impedance Tomography) is a bedside device that noninvasively monitors ventilation distribution over time without x-ray exposure. Our studies using EIT have shown that patients at high risk for postoperative pulmonary complications exhibit phenotype 1 (ventral dominance), phenotype 2 (uniform ventilation distribution), and phenotype 3 (dorsal dominance) ventilation patterns. Furthermore, in the PEEP setting based on clinical judgment, approximately 60% of patients had heterogeneous ventilation distribution (phenotype 1, phenotype 3), and there was an association between heterogeneous ventilation distribution and increased postoperative pulmonary complications and prolonged ventilation. Therefore, ventilator management with a more uniform distribution ventilation may improve prognosis compared to conventional PEEP/FiO2 table. This study aimed to determine whether EIT-based PEEP settings are effective in achieving uniform ventilation distribution in patients at high risk for postoperative pulmonary complications who present with heterogeneous ventilation distribution.

Translated with www.DeepL.com/Translator (free version)

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Percentage of patients whose phenotype 1 or 3 changes to phenotype 2 by PEEP determination method using EIT (percentage of patients whose ventilation distribution is homogenized)

Key secondary outcomes

Ventilation distribution after 4 hours of PEEP determination using EIT


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

Treatment

Type of intervention

Maneuver

Interventions/Control_1

For patients with EIT and heterogeneous ventilation distribution (phenotype 1, phenotype 3) , PEEP setting is performed using EIT-guided ventilation distribution as an index.

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

18 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

Patients over 18 years of age who have undergone surgical procedures
Patients under ventilatory management upon return to the ICU after surgery
Patients at high risk for postoperative pulmonary complications
Heterogeneous ventilation distribution (phenotype 1 DFV<0.5 or phenotype 3 DFV>=0.6) within 12 hours after ICU admission

Key exclusion criteria

Patients with spinal or pelvic instability due to fractures.
Patients with implantable cardioverter-defibrillators or implantable pacemakers.
Patients with preoperative skin lesions, such as blisters, between the 4th and 5th ribs where the EIT belt is worn.
Patients with do-not-resuscitate (DNR) orders.
Patients on home ventilatory management before surgery.
Patients undergoing tracheostomy.
Patients with low cardiac function before surgery (left ventricular ejection fraction of 40% or less, or NYHA III or higher by echocardiography).
Patients with preoperative chest CT scan or chest x-ray showing a bra or other contraindication to the recruitment maneuver.
Patients with a persistent air leak from the thoracic drain or suspected intraoperative lung injury, contraindicating the recruitment maneuver.
Patients with an artificial heart.
Patients with extracorporeal membrane oxygenation (ECMO) support (either veno-venous (VV) or veno-arterial (VA)).
Patients with a history of neuromuscular disease.
Pregnant women.

Target sample size

30


Research contact person

Name of lead principal investigator

1st name Takeshi
Middle name
Last name Yoshida

Organization

Osaka University Graduate School of Medicine

Division name

Department of Anesthesiology and Intensive Care Medicine

Zip code

5650871

Address

2-15 Yamadaoka, Suita, Osaka, 565-0871, Japan

TEL

+81-6-6879-5820

Email

t.hoshino.mie@gmail.com


Public contact

Name of contact person

1st name Taiki
Middle name
Last name Hoshino

Organization

Osaka University Graduate School of Medicine

Division name

Department of Anesthesiology and Intensive Care Medicine

Zip code

5650871

Address

2-15 Yamadaoka, Suita, Osaka, 565-0871, Japan

TEL

+81-6-6879-5820

Homepage URL

https://www.med.osaka-u.ac.jp/pub/anes/intensive_care3.html

Email

t.hoshino.mie@gmail.com


Sponsor or person

Institute

Osaka University Graduate School of Medicine

Institute

Department

Personal name



Funding Source

Organization

Japan Science and Technology Agency

Organization

Division

Category of Funding Organization

Japanese Governmental office

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Ethical Review Board Osaka University Hospital

Address

Advanced Medical Innovation Center Building, 2-2 Yamadaoka, Suita City, Osaka, Japan

Tel

06-6210-8296

Email

rinri@hp-crc.med.osaka-u.ac.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



Other administrative information

Date of disclosure of the study information

2024 Year 07 Month 26 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Open public recruiting

Date of protocol fixation

2024 Year 07 Month 26 Day

Date of IRB

2024 Year 08 Month 05 Day

Anticipated trial start date

2024 Year 08 Month 06 Day

Last follow-up date

2026 Year 03 Month 31 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 07 Month 26 Day

Last modified on

2024 Year 08 Month 07 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000062687


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name