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Completed

NCT Number: NCT00885768

Prevalence of Renal Artery Stenosis in Patients Referred for Cardiac Catheterization

All patients referred for coronary angiography will simultaneously be evaluated for renal artery stenosis and then stenosis more than 50% will be analyzed according to clinical conditions, risk factors and lab data.

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Key information

Conditions

Renal Artery Stenosis Arterial Occlusive Diseases Arteriosclerosis Atherosclerosis Cardiovascular Diseases Female Urogenital Diseases Female Urogenital Diseases and Pregnancy Complications Kidney Diseases Male Urogenital Diseases Renal Artery Obstruction Urogenital Diseases Urologic Diseases Vascular Diseases

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

Tehran Heart Center

Tehran, Iran

About this study

Renal Artery Stenosis (RAS) is a common finding in patients with generalized atherosclerosis. It is the cause of 15-20% of end stage renal disease in elderly patients. The prevalence of asymptomatic RAS in general population is unknown but it estimated to be 18% in 7th decade and more than 50% in the 8th. It is critical to find and manage the RAS before it's symptoms appear. The Gold standard for diagnosis of atherosclerotic arterial stenosis is angiography. In this study we will evaluate the prevalence, severity, location and related factors to renal artery stenosis in patients whom referred for coronary angiography in period of July-September in one of the most referral heart center in Iran, "The Tehran heart center" which is doing more than 50 coronary angiography daily.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • age more than 18 years

Exclusion criteria

  • contraindication to contrast use
  • not signing consent

Treatment and study plan

angiography

Procedure

all patients undergoing coronary angiography with VISIPAQUE and if they had coronary stenosis then renal artery angiography will be done. the dose of contrast will be chosen according to renal function and clinical conditions which will be varied from 75 to 300 ml.

Primary outcomes

  1. Prevalence of Renal Artery Stenosis (RAS)

    Time frame: 2 months

  2. The Number of Patients With Renal Artery Stenosis

    Time frame: 3months

    the prevalence of renal artery stenosis in patients with coronary artery disease

Sponsors and collaborators

Lead sponsor

Imam Khomeini Hospital

Other

Collaborators

  • Tehran Heart Center

Registry information

Official study title

Prevalence of Renal Artery Stenosis in Patients Refered for Cardiac Catheterization to Heart Center Hospital in July-September 2008

Acronym: RAS

Important dates

Study start
2008
Primary completion
2008
Study completion
2009
First posted
Apr 22, 2009
Registry last updated
May 13, 2011

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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