UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000030787
Receipt number R000035153
Scientific Title Assessment of individualized positive end-expiratory pressure on respiratory mechanics and ventilation distribution in morbidly obese patients during laparoscopic surgery
Date of disclosure of the study information 2018/01/12
Last modified on 2023/04/25 20:06:28

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Basic information

Public title

Assessment of individualized positive end-expiratory pressure on respiratory mechanics and ventilation distribution in morbidly obese patients during laparoscopic surgery

Acronym

Effect of PEEP during laparoscopic surgery in obese patients

Scientific Title

Assessment of individualized positive end-expiratory pressure on respiratory mechanics and ventilation distribution in morbidly obese patients during laparoscopic surgery

Scientific Title:Acronym

Effect of PEEP during laparoscopic surgery in obese patients

Region

Japan


Condition

Condition

obese

Classification by specialty

Anesthesiology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

Assessment of individualized positive end-expiratory pressure on respiratory mechanics and ventilation distribution in morbidly obese patients during laparoscopic surgery

Basic objectives2

Others

Basic objectives -Others

Select individualized PEEP and assess change of respiratory mechanics during operation.

Trial characteristics_1

Exploratory

Trial characteristics_2


Developmental phase

Not applicable


Assessment

Primary outcomes

Assess change of ventilation distribution in dorsal part of lung during individualized PEEP

Key secondary outcomes

Select individualized PEEP and assess change of trans pulmonary pressure during head down and pneumoperitonium.


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

Measure each parameter during spontaneous breathing in Spine position.(T1)
Measure each parameter after intubation under PEEP10 cmH2O during general anesthesia.(T2)
First RM followed by a decremental PEEP titration.
PEEP is set to 25 cmH2O and decrease stepwisely by 2 cmH2O for every 3 min.
Calculate driving pressure at each PEEP, chose individual PEEP.
After second RM, set individual PEEP and 5min later measure each parameter. (T3)
The individualized PEEP is maintained throughout the surgery.Measure each parameter,30 min after initiation of pneumoperitonium (T4),10 min after deflation (T5)and after extubation (T6)

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

80 years-old >=

Gender

Male and Female

Key inclusion criteria

Morbidly obese patients with a BMI > 35 kg / m2 undergoing laparoscopic surgery
Informed consent
ASA-PS:1-2

Key exclusion criteria

Pulmonary comorbidities
COPD grade < 3, or FEV1s < 1000 ml
Heart failure
cardiac index < 1.8 L/m2, NYHA >2
Poorly controlled hypertension

Target sample size

20


Research contact person

Name of lead principal investigator

1st name Nozomi
Middle name
Last name Katayama

Organization

Shimane University Faculty of medicine

Division name

Department of Anesthesiology

Zip code

6938501

Address

89-1 Enyachou Izumo Shimane

TEL

0853-20-2295

Email

nk600113@med.shimane-u.ac.jp


Public contact

Name of contact person

1st name Nozomi
Middle name
Last name Katayama

Organization

Shimane University Faculty of medicine

Division name

Department of Anesthesiology

Zip code

6938501

Address

89-1 Enyachou Izumo Shimane

TEL

0853-20-2295

Homepage URL


Email

nk600113@med.shimane-u.ac.jp


Sponsor or person

Institute

Shimane University Faculty of medicine

Institute

Department

Personal name



Funding Source

Organization

Shimane University Faculty of medicine

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Shimane University Faculty of medicine

Address

89-1 Enyachou Izumo Shimane

Tel

0853-20-2295

Email

nk600113@med.shimane-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

2018 Year 01 Month 12 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

Completed

Date of protocol fixation

2017 Year 12 Month 25 Day

Date of IRB

2017 Year 12 Month 25 Day

Anticipated trial start date

2018 Year 01 Month 25 Day

Last follow-up date

2023 Year 03 Month 11 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2018 Year 01 Month 12 Day

Last modified on

2023 Year 04 Month 25 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000035153


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name