Presentation on theme: "How I deal with…and what to avoid… calcified disease Adam de Belder Sussex Cardiac Centre Brighton ACI 2009."— Presentation transcript:
How I deal with…and what to avoid… calcified disease Adam de Belder Sussex Cardiac Centre Brighton ACI 2009
Declaration of interests I have received honoraria from Boston Scientific to help train cardiologists in rotational atherectomy.
Very narrowed/CTO Fibrous Fibrocalcific Superficial calcium Deep calcium
Principle of RA operation Differential Cutting All diseased plaque is inelastic High speed rotational ablation differentiates healthy elastic vessel wall from plaque High speed rotational ablation preferentially cuts all types of plaque morphology
Principle of Operation Differential Cutting Elastic tissue is able to deflect out of the way Elastic tissue space Elastic tissue deflects Direction of motion Ü Diamond crystal Inelastic tissue is unable to deflect out of the way Inelastic tissue space Direction of motion Ü Diamond crystal Forceful mechanical breakdown of matter
post-PTCA procedurepost-Rotablator ® procedure
Case 63 journalist - NSTEMI
Even bigger balloon
4 balloons, the final one of which was a quantum at 26 atm
Non-obstructive dissection – rotablation?
4 weeks later…..
Calcification – what to avoid Do not use oversized balloons in native coronary arteries and inflate them to very high atmospheres in order to ‘crack the lesion’… If a case needs to be treated by rotablation, decide at an early stage with conventional PCI and stop the case
Calcification – what to avoid Inexperienced users have the highest complication rates - do not use rotablation occasionally – buddy up with an experienced colleague or pass the case on to a regular user of the technology …sometimes, you have to swallow your pride and accept that there are some cases that balloons and stents can’t treat
Rotablation experience – Sussex Cardiac Centre N =222 70% >70yrs, 25%>80yrs Hypertension – 84% Failure to cross or poor result – 6.7% Successful result – 93.3% Complications – death n=2, QWMI n=1, dissection n=4, perforation n=3, tamponade n=1
Case – understanding calcium 55 yrs Stable angina Prox LAD Previous pci severe dog-boning
Once you are confident with what can be achieved with RA, higher risk cases can be undertaken 87 yrs Hb 9 Creat 400 Too high risk for surgery Intractable angina
Conclusions Understand the nature of the heavily calcified coronary artery Understand the limitations and potential harm POBA and stenting can do Do some IVUS and see what you’re dealing with Learn/refresh how to rotablate with a proctor Rotablation is not without risk – understand potential complications and how to avoid them Frequent users have better results and are more confident with its capability If you think the case requires a rotablation facility, then it probably does.. ..perhaps the laser?