Interventional Echocardiographer, Professor of Medicine at Columbia University, New York Presbyterian Hospital.

Joined June 2018
721 Photos and videos
NEW ASE Recommendations for the Intraprocedural Imaging for M-TEER bit.ly/ASE_M-TEER @SLittleMD @ASE360 @JournalASEcho @ACCinTouch @SCAI @purviparwani @iamritu
1
73
213
17,523
Free for 50 days: The 2026 American Association for Thoracic Surgery (AATS) Expert Consensus Document: Management of Atrial Functional Mitral Regurgitation. authors.elsevier.com/c/1nARC… @GilbertTangMD @AATSHQ @AATSJournals @GAilawadiMD @ACCinTouch @escardio
55
174
13,758
Excellent review and meta-analysis: Predictors of Procedural and Clinical Outcomes T-TEER. bit.ly/Predictors_TTEER @JACCJournals @ACCinTouch @ESCardioNews @escardio @PCRonline
18
59
6,648
Finally able to treat our Symptomatic AR patients!! @HeartValveCntr @Columbia @JenaValve @ACCinTouch @escardio
11
88
4,664
Just published bit.ly/TR-Standard_WU Hoping to standardize identification of appropriate patients for TTVI! @ESCardioNews @ESC_Journals @escardio @ACCinTouch @juliendreyfus1 @FabienPraz @NAjmoneMarsan @denisamuraru
1
74
211
23,375
RTHahnMD retweeted
Mar 28
Presented at #ACC26: In patients with atrial fibrillation, left atrial appendage closure was noninferior to NOACs in an analysis of death from cardiovascular causes, stroke, or systemic embolism and was superior for non–procedure-related bleeding. Full CHAMPION-AF trial results: nejm.org/doi/full/10.1056/NE… Editorial: Left Atrial Appendage Closure — Should Recommendations Be Expanded? nejm.org/doi/full/10.1056/NE… @ACCinTouch
12
81
241
141,710
RTHahnMD retweeted
#acc26 Six reasons why CHAMPION AF should not change oral anticoagulation for AF I will have a formal post up on @theheartorg but here is a short summary 1) Stroke and Ischemic Stroke went the wrong way. All S -> 33 vs 50 [HR 1.46 95% CI, 0.94-2.27)] IS -> 27 vs 45; [HR = 1.61; 95% CI, 1.00-2.59)] Look at those upper-bounds. 2) NI would not have been met for efficacy had they used a margin with both rate ratio and risk difference, which is standard practice. The margin of 4.8% is based on event rates at 12%, which is 1.4 in relative terms (40% higher). But when event rates come in lower, as they did: 4.8% vs 5.7%, the 4.8% margin is too lenient. The 0.9% higher rate of the primary endpoint has a 95% CI of (-0.8-2.6%), so 2.6% is less than the margin of 4.8%. Now do it with relative risk. It's in table 2. The relative risk is 1.20. The 95% confidence intervals were 0.87-1.66. Note that 1.66> 1.40 so LAAC is not noninferior based on rate ratio margins 3) The primary safety endpoint is flawed because it excludes periprocedural bleeding and uses nonmajor bleeds, such as gum bleeds and bruising. It's open label trial so who which group will complain of more nonmajor bleeding? 4) When counting all events, Watchman barely reduced major bleeds. Also in the main results table is that major bleeds were 83 vs 87 (5.5% vs 5.8%; HR 0.92 95% CI 0.68-1.24) 5) Net Clinical Benefit was also flawed because they used nonprocedural bleeding and nonmajor bleeds. A normal patient would simply say, there were 17 more strokes and only 4 less bleeds. Hardly a good trade. 6) Bayes: trials don't give answers, they update priors. For Watchman, you have PREVAIL failing against warfarin, CLOSURE AF clearly failing against best med Rx (mostly DOACs) so priors are pessimistic. To go from pessimistic priors to enthusiastic posteriors you'd need hugely positive data. CHAMPION is not that. Don't believe the stories that CLOSURE failed due to them using other LAAC devices. In the AMULET IDE trial, Watchman and Amulet were similar. Also, if you believe that German operators are worse than US authors, you need to travel more. Conclusion: Oral anticoagulation for AF is one of the most evidence-based practices in all of medicine. To upend that would take much stronger data. Don't be bamboozled by this trial, which was designed to be positive before the first patient was enrolled. #ACC2026
21
113
387
109,423
RTHahnMD retweeted
JACC just published 6yr outcomes from the Evolut Low Risk Trial w/additional 7yr follow-up. 1° endpoint (death or disabling stroke): no difference through 6 years. Imp finding: A divergence in reintervention appears beyond year five. @JACCJournals jacc.org/doi/10.1016/j.jacc.…
3
11
44
33,855
bit.ly/6yrLowRiskEvolut online. Interesting findings of ⬆️ reintervention in TAVR (vs SAVR) with longer-term follow-up. Editorials give excellent perspectives on the findings. @JACCJournals @ACCinTouch @ESC_Journals @escardio @GilbertTangMD @iamritu @purviparwani
14
56
8,205
Join us in room SYDNEY at @TokyoValve @PCRonline Starting now!!!
1
3
28
2,056
New Balloon-Expandable Valve! #DURAVR bit.ly/DURAVR_SmallAnn Changing the discussion of Small annulus AS? @EuroInterventio #EuroPCR @EAPCIPresident @escardio @ACCinTouch
1
17
119
8,959
Sex Diff's in LV remodeling w/ Aortic Regurgitation bit.ly/4rezT8D Echo Volumes are key, but could we screen with linear dimensions? bit.ly/LVChamberTTEvsCMR1 bit.ly/LVChamberTTEvsCMR2 @JAMA_current @JAMACardio @NAjmoneMarsan @ACCinTouch @escardio
1
19
121
7,670
Two of our @Columbia @HeartValveCntr studies led by Robin LeRUZ made the impactful #tricuspid regurgitation papers list by PCR!! Great overview by @PCRonline! @JACCJournals @ACCinTouch @escardio @Europace
The top ten impactful papers from 2025 on tricuspid intervention we almost missed! 🔗pcronline.com/News/Whats-new… Transcatheter interventions have rapidly reshaped the management of tricuspid valve disease, with landmark trials establishing feasibility and early clinical benefit. Beyond these pivotal studies, a series of less visible but highly informative papers addressed mechanisms, complications, patient phenotypes, and unintended consequences of intervention. Read this review by @Sticchi_Alex #PCRTricuspid #TreatTR #FixTR #interventionalcardiology
1
15
43
6,127
19 Dec 2025
DeviceGuide: AI tool for M-TEER Guidance! See the JACC Case Series authors.elsevier.com/sd/arti… @JACCJournals @GilbertTangMD @ACCinTouch @escardio
23
87
5,378
12 Dec 2025
Great MMI session on AS Evaluation #EACVI2025 See highlights below. @escardio @EACVIPresident
6
10
53
4,360
25 Nov 2025
50 days' free access: Cardiac Remodeling after TTVR: Insights from Multi-modality Imaging: authors.elsevier.com/a/1mA9y… CONGRATS Robin Le Ruz @JACCJournals @escardio @ACCinTouch
2
22
63
5,175
16 Nov 2025
Join us now at the Philips Training Village for discussion of advances in Imaging for Structural Heart #PCRLV @PCRonline
2
12
1,645
16 Nov 2025
Just presented: PARTNER 3 Low-risk Randomized Trial Valve Durability at Seven Years @PCRonline #PCRLV @PPibarot @ACCinTouch @escardio
1
29
83
5,875
29 Oct 2025
PREVUE-VALVE Novel approach to pt recruitment! VHD projected to increase by nearly 4 million by 2060--TR prevalence highest (10.7% of pts with significant VHD)!! @djc795 @BrenerMickey @ACCinTouch @escardio @TCTMD @TCTConference
2
24
51
5,129