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DefinitionRenal angiography, also known as renal arteriography, is an imaging technique used to obtain a comprehensive view of blood flow and the vascular structure of blood vessels in the kidneys and surrounding areas.PurposeRenal angiography detects blood vessel abnormalities in the kidneys, such as aneurysms, stenosis, thrombosis, vascular tumors, and renal artery stenosis. It evaluates kidney function and guides interventional treatments like angioplasty or stent placement.Pre-Procedure...
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Cardiac catheterization is an invasive diagnostic technique used to identify and evaluate structural and functional diseases of the heart and major blood vessels. This technique diagnoses congenital heart disease, coronary artery disease, valvular heart disease, and coronary spasms and assesses ventricular function. It helps guide treatment decisions, including the need for revascularization procedures like percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG) and...
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Peripheral Arterial Interventions with Reduced Contrast Use: The Save Contrast Study.

Andrew N Shammas1, Nicolas W Shammas1, Gail A Shammas1

  • 1Midwest Cardiovascular Research Foundation, Davenport, Iowa.

The International Journal of Angiology : Official Publication of the International College of Angiology, Inc
|February 18, 2026
PubMed
Summary
This summary is machine-generated.

Implementing simple measures significantly reduced contrast volume during peripheral arterial interventions. While procedural success saw a slight, non-significant decrease, this low-contrast approach warrants further investigation for safety in peripheral interventions.

Keywords:
acute kidney injurycontrastperipheral arterial interventionsradiocontrast nephropathy

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Area of Science:

  • Interventional Cardiology
  • Vascular Surgery
  • Radiology

Background:

  • High contrast volume in angiography predicts radiocontrast nephropathy, mortality, and morbidity.
  • Peripheral arterial endovascular procedures often require substantial contrast volumes.
  • Strategies to reduce contrast use are crucial in the angiographic laboratory.

Purpose of the Study:

  • To evaluate specific interventions aimed at reducing contrast volume during peripheral arterial procedures.
  • To assess the impact of a low-contrast protocol on procedural success and safety outcomes.

Main Methods:

  • Retrospective review of 50 procedures (Group A) before protocol implementation.
  • Prospective enrollment of 50 procedures (Group B) after implementing a protocol with diluted contrast, selective injections, and advanced imaging.
  • Comparison of demographics, procedural details, and 30-day major adverse events (MAE) between groups.

Main Results:

  • Contrast use was markedly reduced in Group B (90.4 cc) compared to Group A (221.2 cc) (p < 0.001).
  • Group B had a higher proportion of chronic total occlusions (42.3% vs 24.2%, p=0.011) and greater residual stenosis (15.4% vs 6.7%, p=0.015).
  • Major adverse events were similar between the groups, despite a non-significant trend towards lower procedural success in the low-contrast group.

Conclusions:

  • A low-contrast protocol significantly reduces contrast volume in peripheral arterial interventions.
  • While procedural success may be slightly affected, major adverse events remain comparable.
  • Further large-scale, randomized studies are necessary to confirm the safety profile of this approach.