scholarly journals Transcranial Doppler-Guided Resuscitation during Transcatheter Aortic Valve Replacement

2018 ◽  
Vol 4 (1) ◽  
pp. 41-46
Author(s):  
Khai Doan Nang ◽  
Michael Reardon ◽  
Alan Lumsden ◽  
Zsolt Garami

Abstract Introduction: Transcatheter aortic valve replacement (TAVR) has become an optimal substitute treatment for subjects with severe aortic stenosis who cannot undergo open chest surgery or who have a high surgical risk. Transcranial Doppler (TCD) provides monitoring of microembolic signals and cerebral blood flow during TAVR and detects ongoing fluctuations of intracerebral hemodynamics during each phase of the procedure. Case report: We present the case of a patient who underwent TAVR, during which bilateral monitoring of the middle cerebral artery blood flow was performed with TCD. Conclusions: The effectiveness of transcranial Doppler to identify cerebral embolisms and variations in the cerebral hemodynamics is imperative in fending off complications during transcatheter aortic valve replacement.

2021 ◽  
Vol 104 (5) ◽  
pp. 846-852

Objective: To compare 30 days mortality and clinical outcomes between transapical transcatheter aortic valve replacement (TA-TAVR) and transfemoral transcatheter aortic valve replacement (TF-TAVR) in Thai patients who underwent transcatheter aortic valve replacement (TAVR). Materials and Methods: The observational study included 83 consecutive patients that attended the authors’ center for TAVR between January 2009 and December 2019. The patients’ baseline demographic data and surgical risks were recorded. The clinical outcomes at 30 days and one year were prespecified targets. Results: Eighty-three patients underwent TAVR at the authors’ center between 2009 and 2019, with 77% of them considered inoperable or at high surgical risk by the authors’ heart team. Of the 83 patients, 40 had a porcelain aorta (48.2%). The median Society of Thoracic Surgeons (STS) score and logistic EuroSCORE were 5.7 (4.6, 8.3) and 21.7 (15.2, 31.2), respectively. Twenty-two patients had a transapical approach (26.5%). The cardiovascular (CV) mortality rate was 2.4% at 30 days. The all-cause mortality 30-day rate and 1-year rate were 3.6% and 12.0%, respectively. Comparing between TA-TAVR and TF-TAVR, TA-TAVR had a significantly lower incidence of new permanent pacemaker placement after TAVR (p=0.032), but a longer length of hospital stay (p=0.087). There was a trend for a higher incidence of new onset atrial fibrillation in TA-TAVR. The all-cause mortality 30-day rate and 1-year rate were similar between TA-TAVR and TF-TAVR. Conclusion: In Thai symptomatic severe aortic stenosis patients, of whom most patients were considered inoperable or at high surgical risk, both TA-TAVR and TF-TAVR showed acceptable short- and long-term clinical outcomes. Keywords: Severe aortic stenosis (severe AS), Transcatheter aortic valve replacement (TAVR), Transfemoral (TF), Transapical (TA)


Sign in / Sign up

Export Citation Format

Share Document