Tim Balthazar Profile picture
Intensivist, cardiologist and physiology enthusiast
Apr 13, 2024 11 tweets 3 min read
1/ Acute AR hemodynamics tweetorial: Acute AR leads to rapid equilibration of diastolic LVP and AoP. This causes: 1)rapid rise in LVEDP 2)decrease in DBP leading to LV congestion and hypoperfusion. Typical shape of LVP with upslope toward AoP. Credits to @dburkhoff for Harvi Image 2/ Mitral valve signs: often fluttering of the AMV leaflet because of the AR jet,when acute AR becomes severe MV can close early in diastole, protecting LA and lungs from the high LVP. When severity increases, diastolic MR could be encountered, associated with worse outcome. Image
Aug 30, 2023 13 tweets 4 min read
1/ Tweetorial on @abiomed Impella position (crucial for function and prevention of complications). Recently we summarized a practical algorithm for pVAD position that we developed @UZBrussel and published @ESC_Journals academic.oup.com/ehjacc/advance… 2/ The main problem with pVAD malposition is contact between outlet and AoV or the inlet with LV structures, leading to hemolysis or suction events (decreases support). Recently we published in detail on hemolysis (open access): 10.1080/17434440.2022.2108319