Ce diaporama a bien été signalé.
Le téléchargement de votre SlideShare est en cours. ×

CORONARY PERFORATION ABHISHEK1.pptx

Publicité
Publicité
Publicité
Publicité
Publicité
Publicité
Publicité
Publicité
Publicité
Publicité
Publicité
Publicité
Chargement dans…3
×

Consultez-les par la suite

1 sur 56 Publicité

Plus De Contenu Connexe

Similaire à CORONARY PERFORATION ABHISHEK1.pptx (20)

Plus récents (20)

Publicité

CORONARY PERFORATION ABHISHEK1.pptx

  1. 1. CORONARY ARTERY PERFORATION AND MANAGEMENT DR ABHISHEK KUMAR TIWARI DM RESIDENT, CARDIOLOGY COIMBATORE MEDICAL COLLEGE AND HOSPITAL
  2. 2. Coronary artery perforation is defined as evidence of extravasation of contrast medium or blood from the coronary artery, during or following percutaneous intervention.
  3. 3. Anatomical CATEGORY – Proximal or mid vessel • Usually more profound with greater likelihood of significant sequelae Distal vessel • There the aetiology is often the guide wire (WIRE EXIT) and the clinical course is frequently benign
  4. 4. CLASSIFICATION • Ellis in 1994
  5. 5. OTHER CLASSIFICATIONS- Fukutomi • Type I: Epicardial staining without a contrast extravasation • Type II: Epicardial staining with a visible jet of contrast extravasation Kini • Type I: Myocardial staining without contrast extravasation • Type II: Contrast extravasation into pericardium, coronary sinus, or cardiac chambers
  6. 6. INITIAL DATA • Ellis and colleagues reported first large scale series derived from data obtained from 11 centres, from 1990 and 1991. • Of 12,900 procedures performed, 62 were complicated by coronary perforation (0.5%).
  7. 7. CURRENT DATA • The incidence of Coronary Artery Perforation (CAP) has not changed significantly over two decades. • It is reported between 0.2% and 0.9%.
  8. 8. RISK FACTORS Patient Factors : Females, Elderly, Frail pts. Presentation: ACS/MI, CSA. Lesion Factors: Calcific Lesions, Tortuous lesions, Tapered vessels, Bifurcation lesions, small calibre,
  9. 9. • A study of 38559 patients with 72 perforations reported that > 40% of perforations were seen in vessels < 2.5mm diameter. •Device-lumen mismatch is more important than the vessel reference diameter. • Perforation was more likely where the balloon to artery ratio was 1.3±0.3 compared with a ratio of 1.0±0.3 where no problem ensued. 1.Javaid A, Buch AN, Satler LF, et al. Management and outcomes of coronary artery perforation during percutaneous coronary intervention. Am J Cardiol 2006;98:911-4. 2.Ajluni S, Glazier S, Blankenship L, et al: Perforations after percutaneous coronary interventions: clinical, angiographic, and therapeutic observations. Catheter Cardiovasc Diagn 32:206– 212, 1994.
  10. 10. RISK FACTORS Material-Balloon selection –1:1 High Pressure but not more with high pressure. Cutting/Angiosculpt-more bulky. •Never remove the balloon out totally before you check with a contrast puff. Hydrophilic wires-Stiffer wires/CTO Drugs: GpIIb IIIa inhibitors
  11. 11. In a study* of 16,298 patients with 95 perforations, GPI were used in 33 cases. When these 33 cases were compared with the other 62 cases (where GPI were not used), they found no difference in • Mortality and • Myocardial Infarction GPI use was associated with • Higher incidence of temponade and • Greater requirement of emergency surgery
  12. 12. • Abciximab binds irreversibly to platelet receptors, rendering platelet activity almost negligible for 24 – 36 hours.  In case of perforation with Abciximab, unlike the small molecules Tirofiban and Eptifibatide, simply discontinuing the infusion of Abciximab will not reverse its effect. • Platelet transfusion may be required to restore bleeding time.  REVASCULARIZATION  BLEEDING BALANCE
  13. 13. ATHERECTOMY • Use of either atherectomy or laser ablative technology = More perforation than in convention balloo/stent PCI. • Ellis1 and colleagues reported that incidence of CAP with balloon angioplasty was 14 OF 908 cases (0.1%), whereas that of debulking techniques collectively was 48 OF 3820 cases (1.3%).
  14. 14. GUIDE WIRES • More likely in the terminal sub branches (LESS IN PROX AND MID). • They are also less likely to cause frank rupture of the vessel than a high pressure balloon barotrauma.
  15. 15. GUIDE WIRES • Hence, the appearance more subtle when the wire is the culprit. • Fasseas classified 86% of guide wire mediated ruptures as Ellis type I or II on angiography. • HYDROPHILIC -80%. •CREATE LOOP
  16. 16. CTO • CTO= HIGH RISK (STRONGEST INDEPENDENT PREDICTOR) • If no balloon inflation where the wire is incorrectly positioned, there is minimal extravasation of contrast & blood. • GPI  withheld until the occlusion is safely crossed & distal tip of the wire is seated intraluminally.
  17. 17. SEQUELE OF CAP Caused by CAP- • Blood loss • Distal ischemia • Pericardial Temponade • Cardiogenic shock • Death
  18. 18. SEQUELE OF CAP Caused by MANAGEMENT STRATEGIES- • Myocardial Ischemia • Acute vessel occlusion • Myocardial infarction • Operative morbidity and mortality • Death
  19. 19. COMPLICATION RATE
  20. 20. DIAGNOSIS • Not all CAPs are immediately visible. • Many develop tamponade > 2 to 6 h later. • The clinical manifestation may be non-specific, and the patient may simply develop progressive hypotension. • A high index of suspicion essential for timely diagnosis.
  21. 21. MANAGEMENT Supportive Measures– • IV FLUIDS • O2 • Analgesia • Inotrops • Atropine • IABP
  22. 22. Inflate balloon at perforation site •Before inflating a balloon, one should consider myocardial ischaemia related to balloon inflation time.
  23. 23. Inflate balloon at perforation site Left main: Direct covered stenting should be considered Balloon inflation is "sometimes" feasible depending on haemodynamic status Consider re-crossing in LCx or LAD after covered stent implantation with wire in LCx and LAD (CTO guidewires) to preserve side branch patency Consider surgery
  24. 24. Inflate balloon at perforation site PROXIMAL MAIN CORONARY ARTERY Inflation time will depend on haemodynamic status / ischaemic condition. DON’T OVERSIZE , 1:1 balloon / artery ratio. If haemodynamics allow: Wait 5 minutes then deflate and inject to check Repeat 4-5 times as required
  25. 25. Inflate balloon at perforation site Balloon inflation for upto 30 min is required. If the patient can not tolerate ischemia, then perfusion balloon, if available. • Fukotomi reported excellent results using perfusion balloon for Ellis type III rupture
  26. 26. IF FAILED-IMPLANT COVERED STENT 6F GUIDING CATHETER If balloon is inflated at perforation site Insert a second guiding catheter (second arterial access, consider femoral ≥ 7Fr) (DOUBLE GUIDE CATHETER TECHNIQUE) Parallel guide wire Deploy covered stent through second guiding catheter
  27. 27. IF FAILED-IMPLANT COBVERED STENT 7F/8F GUIDING CATHETER If balloon is inflated at perforation site Insert a second guide wire in the same guiding catheter Implant covered stent
  28. 28. IF FAILED-IMPLANT COBVERED STENT 7F/8F GUIDING CATHETER If balloon is out of the guiding catheter  Insert a covered stent directly
  29. 29. TYPE IV-INTO CAVITY
  30. 30. Management of a Type IV similar to a Type III . Blood leaks into another cardiovascular cavity (often ventricle or coronary vein).  Symptoms are usually that of a new shunt rather than haemodynamic compromise due to a new pericardial effusion. Type IV better tolerated by the patient than Type III
  31. 31. Type V: Distal segment
  32. 32. Type V may be initially missed as the leak into the pericardium is often small and may requiring panning to the distal vessel to be appreciated. Management may require embolisation of the distal vessel with thrombin, coils or fat. Beware of collateral flow to the affected territory which can cause the perforation to persist despite apparently successful embolisation.
  33. 33. Thrombin injection Thrombin: Potent platelet activator Direct and potent promoter of fibrin clot formation
  34. 34. Thrombin injection PREPARATION: Use the wire lumen of a very small diameter over- the-wire balloon catheter. Prepare thrombin, mixed at a concentration of 50– 100 IU per ml in normal saline Slowly inject 100–300 IU of thrombin via the distal lumen of the inflated balloon catheter over a period of 3–5 min Allow balloon to remain inflated for an additional 10– 15 min if possible.
  35. 35. Thrombin injection TRICKS Very small (approx. 0.5ml) bolus of air can be injected through the microcatheter to further diminish retrograde movement of thrombin. Mix of thrombin with a small amount of contrast to allow visualisation.
  36. 36. COIL EMBOLIZATION Needs expertise: Detachable coils, optimal positioning can be confirmed before releasing Pushable coils, smaller but no repositioning  Deliverable through Micro Catheters
  37. 37. Autologous subcutaneous fat embolisation: For distal guidewire perforation Physical barrier to bleeding Coagulation activator Simple, low-cost and universally available treatment Allow for a subsequent PCI attempt
  38. 38. Autologous subcutaneous fat embolisation: Fat from abdominal or femoral (next to the puncture point) SC tissue: Local anaesthesia Fat globules small enough to be delivered throughout a thrombo-aspiration catheter ≤1mm if 6Fr, ≤ 1.2mm if 7Fr, a microcatheter or a OTW balloon: Pushed by a wire Or "emulsion" with saline serum injection
  39. 39. Autologous subcutaneous fat embolisation: Catheter positioned just close to the perforation to avoid: Large peri-procedural infarction by embolisation into branches Systemic or cerebral embolisation
  40. 40. Post-procedural care Once the coronary perforation has been treated there is still a risk of mortality and close surveillance is required during the first 24 hours. 
  41. 41. Post-procedural care
  42. 42. Heparin reversal should be deferred till balloons and wires are still in the artery. ACT---150-200 GPI IMMEDIETLY STOPPED  WORST PROGNOSIS IF SURGERY WARRANTED
  43. 43. THANK YOU

×