Evaluation of a New Non-Invasive Device for Detection of Endothelial Dysfunction

NCT ID: NCT00650741

Last Updated: 2008-04-02

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

30 participants

Study Classification

OBSERVATIONAL

Study Start Date

2008-02-29

Brief Summary

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The purpose of the study is to investigate the sensitivity and specificity of the Endotect compared with an ultrasound device in a flow-mediated vasodilatation (FMD) test.

Detailed Description

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The study compares the results obtained with Endotect with the results obtained from a brachial ultrasound FMD test, with and without nitroglycerin.

The results from 3 patient groups (see below) will be compared

1: 10 subjects, Half with Endothelial Dysfucntion (according to previous ultrasound FMD) , Half with no endothelial dysfucntion (according to previous ultrasound FMD), no repetition of test 2: 10 subjects, Half with Endothelial Dysfucntion (according to previous ultrasound FMD) , Half with no endothelial dysfucntion (according to previous ultrasound FMD), Repetition with Nitroglycerin 3: 10 subjects, Half with Endothelial Dysfucntion (according to previous ultrasound FMD) , Half with no endothelial dysfucntion (according to previous ultrasound FMD), repetition of test with the Endotect

Conditions

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Endothelial Dysfunction

Keywords

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Endothelial Dysfunction FMD

Study Design

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Study Time Perspective

CROSS_SECTIONAL

Study Groups

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1

10 subjects, Half with Endothelial Dysfucntion (according to previous ultrasound FMD) , Half with no endothelial dysfucntion (according to previous ultrasound FMD), no repetition of test

No interventions assigned to this group

2

10 subjects, Half with Endothelial Dysfucntion (according to previous ultrasound FMD) , Half with no endothelial dysfucntion (according to previous ultrasound FMD), Repetition with Nitroglycerin

No interventions assigned to this group

3

10 subjects, Half with Endothelial Dysfucntion (according to previous ultrasound FMD) , Half with no endothelial dysfucntion (according to previous ultrasound FMD), repetition of test with the Endotect

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

1. Male or female between the ages of 18-65.
2. Ambulatory
3. FMD ultrasound assessment within past 6 months.
4. No clinical evidence of cardiovascular disease (no history of MI, TIA or stroke, limp, carotid or aortic murmurs)
5. 10 hour fast - water only
6. Normal peripheral pulse examination.
7. ECG without evidence of former MI or LVH.
8. Capable of understanding the explanation and signing informed consent.

Exclusion Criteria

1. Below age 18 and above age 65.
2. Pregnancy
3. Has not had FMD ultrasound assessment within past 6 months.
4. Exhibits clinical evidence of cardiovascular disease (history of MI, TIA or stroke, limp, carotid or aortic murmurs, clotting disorder)
5. Has eaten or drunk anything besides water in past 10 hours.
6. Known sensitivity to NTG
7. Takes medication for asthma, heart disease or depression, such as atenolol (Tenormin); carteolol (Cartrol); labetalol (Normodyne,Trandate); metoprolol (Lopressor); nadolol (Corgard); phenelzine (Nardil); propranolol (Inderal); sotalol (Betapace); theophylline (Theo-Dur); timolol (Blocadren); tranylcypromine (Parnate), and tricyclic antidepressants such as Elavil
8. Anemia, glaucoma, or have taken medication such as calcium channel blockers like amlodipine (Norvasc), diltiazem(Cardizem), felodipine (Plendil), isradipine (DynaCirc), nifedipine (Procardia), and verapamil (Calan, Isoptin); dihydroergotamine (D.H.E. 45)
9. Venopuncture of arms within past week
10. Use of Viagra, Levitra, Cialis or similar medications to treat erectile dysfunction within last 24 hours or planned use within 8 hours
11. Any of the following:

* unstable emotionally
* unable to understand explanation of study
* ECG with evidence of former MI or LVH.
* Abnormal peripheral pulses
12. Has not signed an informed consent form.
13. Patient is enrolled in another clinical study.
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Lavi Cardiatec

INDUSTRY

Sponsor Role lead

Responsible Party

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Lavi Cardiatec

Principal Investigators

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Giora Amitzur, Ph. D.

Role: STUDY_DIRECTOR

Heart Institute, Sheba Medical Center and Tel Aviv University, Israel

Michael Schechter, MD MA FACC

Role: PRINCIPAL_INVESTIGATOR

Heart Institute, Sheba Medical Center, Israel

Locations

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Sheba Medical Center, Heart Institutue

Tel Litwinsky, , Israel

Site Status

Countries

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Israel

Other Identifiers

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SMC0001

Identifier Type: -

Identifier Source: org_study_id