A chronic total occlusion is a coronary artery that has been completely blocked for 3 months or more. CTO angioplasty (CTO PCI) is a specialised catheter procedure that reopens the blocked segment with fine wires, balloons and stents instead of bypass surgery.
When it succeeds it can relieve angina and breathlessness that tablets have not controlled. Its main limit is that it has not been shown to prolong life or prevent heart attacks, so it is done for symptoms, and success depends heavily on operator experience.
What Chronic Total Occlusion (CTO) Angioplasty involves
Planning starts from a recent angiogram, and sometimes a cardiac CT, to study the length of the blockage, calcium, and the collateral channels that have grown around it. Two arterial access points are usual, often both wrists or a wrist and a groin, so that dye can be injected from the other coronary artery while working. The operator tries to cross the blockage from the front (antegrade) with stiff, tapered guidewires. If that fails, wires can be passed through the artery wall layers and back into the true channel, or brought backwards through the collaterals (retrograde). Once a wire is across, the segment is ballooned and lined with drug-eluting stents, often checked with intravascular ultrasound.
Who is a good candidate for Chronic Total Occlusion (CTO) Angioplasty?
CTO angioplasty is worth considering when a blocked artery supplies living heart muscle and causes symptoms despite good medical treatment.
- You have angina or exertional breathlessness despite two or more anti-anginal medicines
- A stress scan or MRI shows the territory beyond the blockage is alive and short of blood
- Your anatomy has been reviewed by an operator who performs CTO procedures regularly
- You can take two antiplatelet medicines for at least 6 to 12 months
- Bypass surgery is not clearly the better option for your overall pattern of disease
Es ist normalerweise nicht die richtige Wahl, wenn:
- You have no symptoms and no significant ischaemia on testing
- The muscle supplied by the artery is scar with no viability
- You have blockages in several arteries plus diabetes, where bypass surgery usually gives better results
- You have advanced kidney disease, because contrast dye volumes are high
- You cannot take or will not reliably take dual antiplatelet therapy
Technikoptionen
- Antegrade wire escalation: Progressively stiffer wires pushed through from the front. First choice for short blockages with a clear entry point.
- Antegrade dissection and re-entry: The wire travels within the vessel wall past the blockage and re-enters the channel with a dedicated device. Used for long blockages.
- Retrograde approach: The blockage is reached backwards through collateral channels from another artery. Used when the front entry is ambiguous; carries more risk.
- Intravascular imaging guidance: Ultrasound or OCT inside the artery to size stents and confirm full expansion.
Was passiert während Ihrer Behandlung
Expect 2 to 4 hours, longer than a routine stent. It is done under local anaesthetic with light sedation. You lie still on the X-ray table; you may feel chest discomfort when balloons are inflated and should say so. Radiation and contrast doses are tracked, and the operator will stop if agreed safety limits are reached without success, sometimes with a second attempt weeks later.
Vorbereitung auf Ihre Reise
Usually one session with 1 night in hospital. Allow 5 to 7 days in Istanbul for blood tests, kidney function checks, review of your angiogram disc, the procedure and a post-procedure check. Send your existing angiogram images in advance so the operator can judge feasibility before you book anything.
- Informieren Sie den Arzt über Medikamente, Allergien, Schwangerschaft oder Stillen und eine Vorgeschichte von Fieberbläschen, Keloidnarben oder Autoimmunerkrankungen
- Vermeiden Sie Alkohol, Aspirin und entzündungshemmende Schmerzmittel für ein paar Tage im Voraus, wenn Ihr eigener Arzt zustimmt, um Blutergüsse zu reduzieren
- Kommen Sie ohne Make-up auf dem Behandlungsbereich an und vermeiden Sie zwei Wochen vorher Sonnenliegen und starke Sonne
Genesung und Ergebnisse
Most people go home the next day and return to light activity within 2 to 3 days, avoiding heavy lifting for a week if the groin was used. Kidney function is rechecked after a few days. Dual antiplatelet tablets continue for 6 to 12 months and must not be stopped without cardiology advice. Relief of angina is usually noticed within days to weeks.
- Back to everyday activity: 2 to 7 days
- When results show: Angina relief within days to weeks
- How long they last: Years with medicines and risk factor control
Sicherheit, Risiken und Revisionspolitik
Success rates are typically 80 to 90 in 100 in experienced hands. Complication rates are higher than for ordinary stenting, around 2 to 3 in 100 for major events.
- Perforation of the coronary artery with bleeding around the heart, occasionally needing a drain or emergency surgery
- Heart attack during the procedure
- Damage to a collateral channel or to the donor artery in retrograde procedures
- Kidney injury from contrast dye
- Skin injury from prolonged X-ray exposure, which is rare
- Failure to cross the blockage
- Re-narrowing or clotting of the stents later
Jeder schriftliche Vorschlag wird durch Clinic-Y gibt an, was die Klinik abdeckt, wenn eine Korrektur erforderlich ist. Fragen Sie danach, bevor Sie buchen, nicht danach.
Cost of Chronic Total Occlusion (CTO) Angioplasty in Türkiye
Clinic-Y does not publish a single price for Chronic Total Occlusion (CTO) Angioplasty, because the honest figure depends on your case. What moves it:
- Number and type of specialised wires, microcatheters and re-entry devices used
- Length of stented segment and number of drug-eluting stents
- Use of intravascular ultrasound or OCT
- Procedure length and whether a staged second attempt is needed
- Viability imaging such as cardiac MRI beforehand
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Häufig gestellte Fragen
My blocked artery has collaterals. Do I still need it opened?
Collaterals usually keep the muscle alive at rest but rarely supply enough blood on exertion. If you have no symptoms and little ischaemia, leaving it alone with medical therapy is reasonable.
Is CTO angioplasty safer than bypass?
It avoids a chest operation, but it is not automatically the better choice. For multi-vessel disease, particularly with diabetes, surgery often lasts longer. A joint heart team opinion is the fair way to decide.
What if it fails?
You continue medicines. A second attempt with a different strategy, or bypass surgery, may be discussed.