Related Experiment Video

Updated: Jul 13, 2026

Closure of a Patent Foramen Ovale (PFO): An Intervention Sequence
10:52

Closure of a Patent Foramen Ovale (PFO): An Intervention Sequence

Published on: December 23, 2022

[Chronic total occlusion: the last frontier of the interventional cardiology?]

C Frangos1, S Noble, J Noble

  • 1Institut de cardiologie de Montréal, 5000, rue Bélanger, Montreal. caroline.frangos@hcuge.ch

Revue Medicale Suisse
|July 25, 2007
PubMed

Insights

Recanalizing chronic total occlusions (CTO) is challenging but improved success rates are seen with new guidewires, devices, and techniques. Successful CTO recanalization with drug-eluting stents improves long-term outcomes and event-free survival in symptomatic patients.

Area of Science:

  • Interventional Cardiology
  • Vascular Medicine
  • Medical Devices

Context:

  • Chronic total occlusion (CTO) recanalization is a complex interventional cardiology procedure, representing 10-20% of angioplasty cases.
  • Recent advancements in guidewire technology, device development, and novel techniques, particularly from Japanese centers, have enhanced procedural success rates.
  • Drug-eluting stents have significantly reduced restenosis rates, improving long-term results after successful CTO recanalization.

Purpose:

  • To review the current challenges and advancements in the recanalization of chronic total occlusions.
  • To highlight the impact of new technologies and techniques on procedural success and patient outcomes.
  • To discuss the role of drug-eluting stents in managing restenosis post-CTO intervention.

Summary:

  • The recanalization of CTOs presents significant challenges for interventional cardiologists.
  • Improved guidewires, devices, and techniques have led to higher success rates, especially by experienced operators.
  • Successful recanalization, particularly with drug-eluting stents, improves long-term clinical outcomes and event-free survival in symptomatic patients, despite increased radiation and contrast exposure.

Impact:

  • Successful CTO recanalization improves clinical outcomes and event-free survival in symptomatic individuals.
  • Advancements in technology and techniques are making complex CTO interventions more feasible and successful.
  • Drug-eluting stents are crucial for mitigating restenosis and ensuring sustained benefits after successful CTO treatment.

More Related Videos

Permanent Cerebral Vessel Occlusion via Double Ligature and Transection08:22

Permanent Cerebral Vessel Occlusion via Double Ligature and Transection

Published on: July 21, 2013

Related Concept Videos

Mitral Stenosis III: Medical Management01:26

Mitral Stenosis III: Medical Management

Mitral stenosis, a condition marked by the narrowing of the mitral valve, necessitates an integrated approach for effective management. This approach includes preventative measures, medical therapy, and surgical interventions to reduce symptoms and prevent complications.PreventionPrevention of mitral stenosis primarily focuses on reducing the incidence of bacterial infections, particularly streptococcal infections, which can lead to rheumatic fever and subsequent valvular damage. Timely...
Aneurysm III: Interprofessional Care01:26

Aneurysm III: Interprofessional Care

Aneurysm management involves either conservative medical therapy or surgical intervention, depending on the size and symptoms of the aneurysm. Conservative management is generally reserved for smaller, asymptomatic aneurysms, while larger or symptomatic aneurysms often necessitate surgical repair.Conservative Medical TherapyFor small, asymptomatic aneurysms, particularly abdominal aortic aneurysms (AAA) less than 5.5 centimeters in diameter, conservative medical therapy is recommended. This...
Aortic Regurgitation III: Medical Management01:25

Aortic Regurgitation III: Medical Management

Aortic regurgitation (AR) is when the aortic valve does not close or seal properly, leading to backward blood circulation from the aorta into the left ventricle during diastole. Common causes of AR include rheumatic heart disease, congenital valve defects, and aortic root dilation. Managing AR requires a multifaceted approach to alleviate symptoms, preserve left ventricular function, and address the underlying cause of the regurgitation. Patients with symptomatic AR or significant left...
Cardiomyopathy V: Interprofessional Care01:29

Cardiomyopathy V: Interprofessional Care

Managing cardiomyopathy involves addressing underlying or precipitating causes, treating heart failure with medications, and implementing dietary changes and a balanced exercise and rest regimen.Lifestyle ModificationsCardiomyopathy patients should adopt a low-sodium diet to reduce fluid retention and manage heart failure. A personalized exercise and rest plan helps maintain physical fitness without overstraining the heart. Avoiding alcohol and tobacco is essential to prevent further damage to...
Angle Closure Glaucoma: Treatment01:28

Angle Closure Glaucoma: Treatment

Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...
Mitral Stenosis I: Introduction01:22

Mitral Stenosis I: Introduction

Mitral Valve Stenosis (MVS) is a heart condition where the mitral valve narrows, impeding blood circulation from the left atrium to the left ventricle. The etiology and pathophysiology of this condition are multifaceted, leading to a cascade of cardiovascular complications.Causes of Mitral Valve StenosisRheumatic Heart Disease: It is the main cause of mitral valve stenosis, particularly in developing nations. This condition arises from rheumatic fever, an inflammatory illness resulting from...