Prof Marwan Refaat (@drmarwanrefaat) 's Twitter Profile
Prof Marwan Refaat

@drmarwanrefaat

Tenured Prof of Med & Biochem @AUB_Lebanon.Associate Editor @JCardioEP.Cardio/EP @AUBMC_Official.Alum @MGHMedicine,@harvardmed, @Pittcardiology ,@UCSFCardiology

ID: 1087157798

linkhttp://bit.ly/2YfitvK calendar_today13-01-2013 20:35:05

5,5K Tweet

2,2K Followers

3,3K Following

Timothy Maher, MD (@timothymahermd1) 's Twitter Profile Photo

In VT substrate mapping, wavefront direction is critical! Here is sinus, RV pacing, and LV pacing all at the same location on the inferior scar. The interaction of the wavefront direction with fixed lines of block create the split and late potentials. #ablateVT BIDMC VT Center

In VT substrate mapping, wavefront direction is critical! Here is sinus, RV pacing, and LV pacing all at the same location on the inferior scar. The interaction of the wavefront direction with fixed lines of block create the split and late potentials. #ablateVT <a href="/BIDMC_VT/">BIDMC VT Center</a>
Dr. Fadlo Khuri (@drfadlokhuri) 's Twitter Profile Photo

The American University of Beirut 2025 commencement was one of the most powerful and moving in my decade as president. Little question that we needed this joyous culmination of what has been a most difficult academic year for too many reasons to get into. But the year ended on an uplifting note.

The <a href="/AUB_Lebanon/">American University of Beirut</a> 2025 commencement was one of the most powerful and moving in my decade as president. Little question that we needed this joyous culmination of what has been a most difficult academic year for too many reasons to get into. But the year ended on an uplifting note.
CardiovascularCorner (@trackyourheart) 's Twitter Profile Photo

Doppler Stroke Volume (Step by Step Guide) ⬜ Stroke Volume (SV) = amount of blood ejected by the LV per beat SV = CSA × VTI Step 1: Calculate CSA (Cross Sectional Area) - Measure LVOT diameter (D) in parasternal long axis (PLAX) view during mid-systole - Apply: CSA

Doppler Stroke Volume (Step by Step Guide)
⬜  Stroke Volume (SV) = amount of blood ejected by the LV per beat
           SV = CSA × VTI
 Step 1: Calculate CSA (Cross Sectional Area)
- Measure LVOT diameter (D) in parasternal long axis (PLAX) view during mid-systole
- Apply: CSA
Prof Marwan Refaat (@drmarwanrefaat) 's Twitter Profile Photo

Congratulations dear Bradley Knight on the well deserved 2025 ECAS Society outstanding achievement award and for giving the Mark Josephson special lecture!You are an outstanding leader in electrophysiology and we are so proud of you.I loved your lecture on « Efficiency » #Epeeps

Congratulations dear <a href="/DrBradleyKnight/">Bradley Knight</a> on the well deserved 2025 <a href="/ECAScardio/">ECAS Society</a> outstanding achievement award and for giving the Mark Josephson special lecture!You are an outstanding leader in electrophysiology and we are so proud of you.I loved your lecture on « Efficiency » #Epeeps
The Heart (@zheart11768530) 's Twitter Profile Photo

🔴Restrictive cardiomyopathy: definition and diagnosis⤵️State of the Art #Review #OpenAccess 🔹academic.oup.com/eurheartj/arti… #Cardiology #FOAMed #MedEd #medstudent #paramedic #Cardiology #CardioEd #medtwitter #meded #CardioTwitter #cardiotwiteros #MedX #cardiovascular #MedTwitter

🔴Restrictive cardiomyopathy: definition and diagnosis⤵️State of the Art #Review #OpenAccess 

🔹academic.oup.com/eurheartj/arti…
 #Cardiology #FOAMed #MedEd #medstudent #paramedic #Cardiology #CardioEd #medtwitter #meded #CardioTwitter #cardiotwiteros  #MedX #cardiovascular #MedTwitter
American College of Cardiology (@accintouch) 's Twitter Profile Photo

What happens when a patient’s LDL is at goal on a statin but ApoB100 remains elevated? In this #ACC25 case presentation, Aarti Thakkar, MD, explores the nuances of secondary prevention & lipid discordance. Enjoy a 🆓 preview & subscribe to #ACCAnywhere ➡️ bit.ly/456wsJf

What happens when a patient’s LDL is at goal on a statin but ApoB100 remains elevated? In this #ACC25 case presentation, Aarti Thakkar, MD, explores the nuances of secondary prevention &amp; lipid discordance.

Enjoy a 🆓 preview &amp; subscribe to #ACCAnywhere ➡️ bit.ly/456wsJf
Ritu Thamman MD (@iamritu) 's Twitter Profile Photo

Who develops ⬇️LVEF during exercise despite No CAD or a hypertensive response? Are they an early subphenotype of HFpEF? Mayo Clinic CV📝finds pts(3/4 women)w SOB/CP & exercise-induced ⬇️in LVEF w WMA (in 4/5)on ESE & NO CAD have high incidence of HF🏥& AF bit.ly/3FwR4jB

Who develops ⬇️LVEF during exercise despite No CAD or a hypertensive response? 
Are they an early subphenotype of HFpEF?
<a href="/MayoClinicCV/">Mayo Clinic CV</a>📝finds pts(3/4 women)w SOB/CP &amp; exercise-induced ⬇️in LVEF w WMA (in 4/5)on ESE &amp; NO CAD have high incidence of HF🏥&amp; AF bit.ly/3FwR4jB
Christopher DeSimone, MD, PhD (@drdeese99) 's Twitter Profile Photo

MYL4 Identifies Intramural Anatomy of Purkinje Fibers in Human Hearts | JACC: Clinical Electrophysiology jacc.org/doi/abs/10.101… Amazing work led by Matt Hillested and Atta Befhar!

Sandeep Gautam (@gautamsand) 's Twitter Profile Photo

🧑‍🎓Available HeartRhythm online now: *⃣A simple minimal-cost approach to stylet stabilization for LBBAP 🌟Hack - Use a simple IS-1 lead cap to 'lock' the stylet in place during lead manipulation in the septum 👏Innovators - Incomparable Robert Schaller Penn Electrophysiology Fellowship #EPeeps

🧑‍🎓Available <a href="/hrs_journal/">HeartRhythm</a> online now:
*⃣A simple minimal-cost approach to stylet stabilization for LBBAP
🌟Hack - Use a simple IS-1 lead cap to 'lock' the stylet in place during lead manipulation in the septum
👏Innovators - Incomparable Robert Schaller <a href="/PennEPFellows/">Penn Electrophysiology Fellowship</a> 
#EPeeps
Prof Marwan Refaat (@drmarwanrefaat) 's Twitter Profile Photo

May the soul of Prof Nabil El-Sherif rest in peace.He described« figure-of-8 model of reentry »in ventricular tachycardia & had many contributions in the field.He was a leader in cardiac electrophysiology&recipient of American College of Cardiology Distinguished Scientist award Heart Rhythm Society Arab HRS - Heart Rhythm Society

Journal of Cardiovascular Electrophysiology (@jcardioep) 's Twitter Profile Photo

⚡️ Is PFA the future for CTI-dependent atrial flutter? 🤿 Dive into compelling evidence on the safety & efficacy of Pulsed Field Ablation. Juan F. Rodriguez-Riascos, M.D. onlinelibrary.wiley.com/doi/10.1111/jc… #PulsedFieldAblation #PFA #EPeeps