UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000060221
Receipt number R000068880
Scientific Title Difference Between Invasive and Non-Invasive Blood Pressure Measurements in Patients With Atrial Fibrillation Undergoing Non-Cardiac Surgery: A Prospective Observational Study Using Error Grid Analysis
Date of disclosure of the study information 2025/12/29
Last modified on 2025/12/28 11:21:15

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Basic information

Public title

Difference Between Invasive and Non-Invasive Blood Pressure Measurements in Patients With Atrial Fibrillation Undergoing Non-Cardiac Surgery: A Prospective Observational Study Using Error Grid Analysis

Acronym

Difference Between Invasive and Non-Invasive Blood Pressure Measurements in Patients With Atrial Fibrillation Undergoing Non-Cardiac Surgery: A Prospective Observational Study Using Error Grid Analysis

Scientific Title

Difference Between Invasive and Non-Invasive Blood Pressure Measurements in Patients With Atrial Fibrillation Undergoing Non-Cardiac Surgery: A Prospective Observational Study Using Error Grid Analysis

Scientific Title:Acronym

Difference Between Invasive and Non-Invasive Blood Pressure Measurements in Patients With Atrial Fibrillation Undergoing Non-Cardiac Surgery: A Prospective Observational Study Using Error Grid Analysis

Region

Japan


Condition

Condition

Patients with atrial fibrillation undergoing non-cardiac surgery

Classification by specialty

Anesthesiology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

In patients with atrial fibrillation, significant discrepancies are likely to occur between invasive and non-invasive arterial blood pressure measurements, and the magnitude of error is reported to increase for both systolic and diastolic blood pressure. Previous studies comparing invasive and non-invasive arterial blood pressure in patients with atrial fibrillation have primarily used the Bland Altman method, which involves a simple comparison between the two measurements. Recently, an error grid analysis, a novel analytical method that incorporates the clinical risk associated with blood pressure differences, has been developed for comparing two blood pressure measurements. The aim of this study was to evaluate the differences between invasive and non-invasive arterial blood pressure in patients with atrial fibrillation using error grid analysis.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Invasive and non-invasive arterial blood pressure

Key secondary outcomes



Base

Study type

Observational


Study design

Basic design


Randomization


Randomization unit


Blinding


Control


Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms


Purpose of intervention


Type of intervention


Interventions/Control_1


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 years or older at the time of obtaining informed consent
Patients who have provided written informed consent to participate in the study
Patients with chronic atrial fibrillation
Patients undergoing non-cardiac surgery under general anesthesia
Patients with intraoperative invasive arterial blood pressure monitoring

Key exclusion criteria

Emergency surgery cases
Cardiovascular surgery cases
Patients in whom non-invasive blood pressure measurement in both upper limbs is difficult, such as those with a history of breast cancer surgery or patients with an arteriovenous fistula for hemodialysis
Patients with a preoperative inter-arm systolic blood pressure difference of 20 mmHg or greater

Target sample size

100


Research contact person

Name of lead principal investigator

1st name Koichi
Middle name
Last name Suehiro

Organization

Osaka Metropolitan University Graduate School of Medicine

Division name

Department of Anesthesiology

Zip code

634-0063

Address

1-5-7 Asahimachi, Abeno-ku, Osaka 545-8586, Japan

TEL

06-6645-2186

Email

suehirokoichi@yahoo.co.jp


Public contact

Name of contact person

1st name Koichi
Middle name
Last name Suehiro

Organization

Osaka Metropolitan University Graduate School of Medicine

Division name

Department of Anesthesiology

Zip code

634-0063

Address

1-5-7 Asahimachi, Abeno-ku, Osaka 545-8586, Japan

TEL

0666452186

Homepage URL


Email

suehirokoichi@yahoo.co.jp


Sponsor or person

Institute

Department of Anesthesiology, Osaka Metropolitan University Graduate School of Medicine

Institute

Department

Personal name



Funding Source

Organization

Self funding

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 Osaka Metropolitan University Graduate School of Medicine

Address

1-5-7, Asahimachi, Abeno-ku, Osaka 545-8586 Japan

Tel

06-6645-6125

Email

gr-a-knky-ethics@omu.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

2025 Year 12 Month 29 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

Preinitiation

Date of protocol fixation

2025 Year 12 Month 15 Day

Date of IRB

2025 Year 12 Month 16 Day

Anticipated trial start date

2025 Year 12 Month 29 Day

Last follow-up date

2030 Year 12 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

A comparison was performed between invasive arterial blood pressure and non-invasive arterial blood pressure measured using a cuff-based device. Student's t test and the Mann-Whitney U test were used for statistical comparisons, as appropriate. In addition, measurement error was evaluated using error grid analysis, with reference to a previous study. In error grid analysis, the plot is divided into zones A through E, with zone A representing the smallest error and subsequent zones (B to E) indicating progressively larger errors. According to the report by Saugel et al., if more than 90% of measurement points fall within zone A, the difference is considered clinically acceptable. To avoid interference between measurements, invasive and non-invasive arterial blood pressure were measured in different upper limbs in this study.
Reference: Saugel B, et al. Anesth Analg. 2018; 126: 1177-85


Management information

Registered date

2025 Year 12 Month 28 Day

Last modified on

2025 Year 12 Month 28 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000068880