Khawaja Afzal Ammar, MBBS, MS

Clinical Images

Understanding the Musical Dance of the Engaged Coronary Catheter: Insights From Advanced Myocardial Mechanics

08/28/2018

This case of a 56-year-old woman with normal coronaries displays the side-to-side motion of the unengaged catheter followed by the rhythmic up-and-down, piston-like movements of the catheter tip after engagement.

This case of a 56-year-old woman...

08/28/2018

Journal of Invasive Cardiology

Original Contribution

Use of Resting Non-hyperemic Indices for Avoidance of Fractional Flow Reserve Measurement: The Goal of 100% Accuracy

06/30/2016

Khawaja Afzal Ammar , MBBS, MS;

Mirza Nubair Ahmad , MBBS;

Mirza Mujadil Ahmad , MBBS;

Arsalan Riaz , MBBS;

Imran Husain , BS;

Fatima Husain , MBBS;

Suhail Q. Allaqaband , MD;

Anjan Gupta , MD;

Tanvir Bajwa , MD;

The authors hypothesize that a certain resting non-hyperemic index of coronary and aortic pressures (Pd/Pa) can obviate the measurement of fractional flow reserve and avoid the use of adenosine administration.

The authors hypothesize that a...

06/30/2016

Journal of Invasive Cardiology

Case Report

Crossing a Difficult-to-Cross Coronary Lesion: The Utility of the Wire Surfing Technique

04/05/2022

Khawaja Afzal Ammar , MBBS, MS;

A difficult-to-cross coronary lesion, due to vessel tortuosity and almost complete occlusion, was crossed using the wire surfing technique. This case report captures the details of the case and presents it in the light of fluid hemodynamics,...

A difficult-to-cross coronary...

04/05/2022

Cath Lab Digest

Insights From Modern Imaging and Catheter Wire Measurements in Patients Undergoing Transcatheter Aortic Valve Replacement

07/01/2020

Zara Ammar ;

Anthony DeFranco , MD;

Saagar Shah ;

Arshad Jahangir , MD;

Suhail Q. Allaqaband , MD;

Tanvir Bajwa , MD;

M. Fuad Jan , MBBS, MD;

Jessica Roback , BS;

Khawaja Afzal Ammar , MBBS, MS;

This study describes methods for crossing a severely stenotic aortic valve in light of modern imaging modalities (echocardiography, computed tomography, and fluoroscopy) and characterizes a successful crossing.

This study describes methods for...

07/01/2020

Journal of Invasive Cardiology