J 2019

Comparison of different methods of ABI acquisition for detection of peripheral artery disease in diabetic patients

HOMZA, Miroslav, Ondrej MACHACZKA, Martin PORZER, Milan KOZÁK, Jiri PLASEK et. al.

Basic information

Original name

Comparison of different methods of ABI acquisition for detection of peripheral artery disease in diabetic patients

Authors

HOMZA, Miroslav (203 Czech Republic), Ondrej MACHACZKA (203 Czech Republic), Martin PORZER (203 Czech Republic), Milan KOZÁK (203 Czech Republic, belonging to the institution), Jiri PLASEK (203 Czech Republic) and David SIPULA (203 Czech Republic)

Edition

Biomedical papers, Olomouc, Palacky University, 2019, 1213-8118

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30201 Cardiac and Cardiovascular systems

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 1.000

RIV identification code

RIV/00216224:14110/19:00108957

Organization unit

Faculty of Medicine

DOI

UT WoS

000489991000006

Keywords in English

ankle brachial index; diabetes; oscillometric measurement; dopplerometric measurement; duplex ultrasonography

Tags

Tags

International impact, Reviewed
Změněno: 17/12/2019 07:54, Mgr. Tereza Miškechová

Abstract

V originále

Background: Ankle brachial index (ABI) is the principal screening method for peripheral arterial disease (PAD). In this study, we compare various types of Doppler-derived and oscillometric ABIs with results obtained through duplex ultrasonography. Methods: 62 patients were enrolled in the study. For each limb, blood pressures for both ankle arteries and the arm were measured using Doppler and an automated oscillometric device. Duplex ultrasound was performed for all limbs and occlusions >50% were considered PAD-positive. ABI was calculated using both higher (HABP) and lower (LABP) arterial blood pressure on the individual limbs and the ability to predict duplex-detected stenoses was evaluated. Results: LABP calculation provided results superior to the guideline-recommended HABP. Considering patients with ABI >1.4 or measurement failure as PAD-positive further enhanced the test parameters. The higher ABI cut-off of 1.0 resulted in somewhat better sensitivities (max 92%) and negative predictive values (max 87%) at the expense of a substantial increase in the number of false positives. Oscillometric method yielded poor sensitivities but very good specificities (max 94%) and positive predictive values (max 90%). Conclusions: Doppler-based LABP provides better results than the guideline-recommended HABP in diabetic patients, nevertheless even this method is not perfect. Increasing the cut-off value to 1.0 in these patients does not bring a substantial improvement of the test performance. Patients with high ABI should be automatically considered PAD-positive and referred for further investigation using imaging techniques.