Key result
Delayed coronary obstruction represents an uncommon but serious complication after TAVR.
Why the study?
Delayed coronary obstruction (DCO) is an uncommon but serious complication after TAVR, with increasing concern as TAVR use expands to lower-risk patients.
Warrants heightened post-TAVR surveillance for this complication; leaves open optimal prevention and risk-stratification strategies.
As transcatheter aortic valve replacement (TAVR) becomes the mainstream treatment for valvular aortic stenosis, it is vitally important to recognize its associated procedural complications. Among the clinically relevant but uncommonly seen complications, the development of delayed coronary obstruction (DCO) occurring during the early post-procedural phase or even later following the index TAVR procedure, has been reported. These reports have raised concerns as TAVR comes more common in lower-risk patients. In this review article, we explored the implications of DCO for pre-procedural computed tomography evaluation, valve selection and sizing, intra-procedural manipulation, and approaches to post-procedural management.
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Yin et al. (2020) conducted a review in Valvular aortic stenosis. Transcatheter aortic valve replacement (TAVR) was evaluated on Delayed coronary obstruction (DCO). Delayed coronary obstruction is an uncommon but serious complication occurring in the early or late post-procedural phase following transcatheter aortic valve replacement.
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