Related Experiment Video

Updated: Jul 4, 2026

Permanent Cerebral Vessel Occlusion via Double Ligature and Transection
08:22

Permanent Cerebral Vessel Occlusion via Double Ligature and Transection

Published on: July 21, 2013

A universal classification system for chronic total occlusions

Rohan Jayasinghe1, Varghese Paul, Sharmalar Rajendran

  • 1Cardiology Unit, Gold Coast Hospital, 108 Nerang Street, Southport, Queensland 4215, Australia. rohan_jayasinghe@qld.gov.au

The Journal of Invasive Cardiology
|June 5, 2008
PubMed

Insights

A new classification system for chronic total occlusions (CTOs) aims to improve percutaneous coronary intervention success. This system helps interventional cardiologists assess technical challenges and risks before treatment.

Area of Science:

  • Interventional Cardiology
  • Vascular Biology

Background:

  • Chronic total occlusions (CTOs) present a significant challenge in interventional cardiology.
  • Successful revascularization for CTOs remains difficult despite technological advancements.

Purpose of the Study:

  • To introduce a novel classification system for the antegrade approach to CTO treatment.
  • To aid interventional cardiologists in evaluating technical difficulty and procedural risks.
  • To provide a research tool for assessing the impact of the classification on clinical outcomes.

Main Methods:

  • Development of a new classification system for CTOs.
  • Focus on the antegrade approach for percutaneous coronary intervention.
  • Assessment of technical difficulties and procedural risks.

Main Results:

  • The proposed classification system enables pre-procedural risk and difficulty assessment.
  • It offers a standardized method for evaluating complex CTO lesions.
  • Potential utility in research for analyzing clinical success rates.

Conclusions:

  • The new CTO classification system can enhance treatment planning and risk stratification.
  • It may improve the success rates of percutaneous coronary interventions for CTOs.
  • This system serves as a valuable tool for both clinical practice and research in interventional cardiology.

More Related Videos

Transient Middle Cerebral Artery Occlusion Model of Stroke05:32

Transient Middle Cerebral Artery Occlusion Model of Stroke

Published on: August 11, 2023

Optimization of the Longa Middle Cerebral Artery Occlusion Method for Complete Reperfusion13:18

Optimization of the Longa Middle Cerebral Artery Occlusion Method for Complete Reperfusion

Published on: November 22, 2024

Related Concept Videos

Overview of Systemic Arteries01:11

Overview of Systemic Arteries

The human body is a complex, well-organized machine, and at the heart of its operations lies the circulatory system. This network of blood vessels, which includes systemic arteries, plays a vital role in maintaining life by transporting nutrients, oxygen, and waste products to and from cells throughout the body.
Systemic circulation is the part of the cardiovascular system that carries oxygenated blood away from the heart to the body's tissues and returns deoxygenated blood back to the heart.
Angina II: Classification01:27

Angina II: Classification

Angina, also known as angina pectoris, is a chest pain resulting from diminished blood flow to the heart muscle and is often a symptom of coronary artery disease. Angina presents several variants with distinctive attributes, etiologies, and therapeutic approaches. The main types of angina include stable, unstable, variant (Prinzmetal's), microvascular, intractable, and silent ischemia.Stable angina is caused by atherosclerosis, which leads to the formation of plaques that narrow the coronary...
Classification of Systems-I01:26

Classification of Systems-I

Linearity is a system property characterized by a direct input-output relationship, combining homogeneity and additivity.
Homogeneity dictates that if an input x(t) is multiplied by a constant c, the output y(t) is multiplied by the same constant. Mathematically, this is expressed as:
Cardiovascular Drugs: Classification based on Therapeutic Indications01:18

Cardiovascular Drugs: Classification based on Therapeutic Indications

Cardiovascular diseases, encompassing a range of conditions, can significantly affect the heart's operations and the overall circulatory system. These conditions impair the heart's ability to pump blood, leading to a deficit in oxygen supply to crucial organs. Anomalies in the heart's electrical system, known as arrhythmias, can cause heartbeats to accelerate or slow down. Usually, heart rates increase during physical activity and decrease while resting or sleeping. However, frequent irregular...
Functional Classification of Joints01:09

Functional Classification of Joints

Functional Classification of Joints
The functional classification of joints is determined by the amount of mobility between the adjacent bones. Joints are functionally classified as a synarthrosis or immobile joint, an amphiarthrosis or slightly moveable joint, or as a diarthrosis, a freely moveable joint. Fibrous and cartilaginous joints can be functionally classified as either synarthroses  or amphiarthroses, whereas all synovial joints are classified as diarthroses.
Synarthrosis
An immobile...
Classification of Systems-II01:31

Classification of Systems-II

Continuous-time systems have continuous input and output signals, with time measured continuously. These systems are generally defined by differential or algebraic equations. For instance, in an RC circuit, the relationship between input and output voltage is expressed through a differential equation derived from Ohm's law and the capacitor relation,