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Changes In Ventricular Depolarisation Vectors During Exercise Caused By Regional Myocardial Ischaemia, Cameruddin Vellani, Satwat Hashmi, Sadia Mahmud, Mohammad Yusuf, Safia Awan, Khawar Kazmi

Section of Cardiology

Research at the Aga Khan University for several years has been directed to find a reliable, low-cost, portable, non-invasive method for identification of coronary artery disease, its location and extent. A new method has been devised to measure the magnitude and direction of cardiac electrical vectors in three perpendicular planes during physical exercise to identify reduction in myocardial excitability as the electrophysiological marker of hypoxia. This report shows that changes in electrical forces due to exercise-induced regional hypoxia serve as indicators of reversible myocardial ischaemia. Changes in the magnitude and direction of vectors at stages of the Bruce protocol were …

It’S Not Always Occam's Razor – The Case Of A Young Man With Subaortic Membrane With Superimposed Pulmonary Thromboembolism And Left Main Coronary Artery Disease, Hunaina Shahab, Abdul Baqi, Yusra Askari, Qurrat Ul Ain Aqeel, Kumail Khandwala

Section of Cardiology

Subaortic membrane (SAM) is a discrete fibromuscular structure which causes left ventricular outflow tract obstruction and leads to the symptomatology of valvular aortic stenosis. It is known to be associated with other congenital cardiac defects in around 30% of cases. However, it has not been associated with chronic pulmonary thromboembolism in the past. We present a case of a middle-aged Pakistani man who presented with dyspnea and hemoptysis. He was found to have a SAM and severe pulmonary hypertension on transthoracic echocardiogram. A coronary angiogram revealed non-obstructive left main coronary artery disease. A computed tomography (CT) scan chest was done …

Advances In Structural Heart Disease: Mitraclip For Secondary Mitral Regurgitation - A Potential Game Changer, Shahrukh Hashmani, Amammarah Yasmeen, Shayana Rukhsar Hashman

Section of Cardiology

No abstract provided.

Severity Of Chest Pain Among Acute Myocardial Infarction Patients With Diagonal Branch Vessel Disease: A Pilot Study, Nasir Rahman, Azmina Artani, Farhala Mari Baloch, Bilal Hussain

Section of Cardiology

Introduction: Acute myocardial infarction (AMI) patients present with variable clinical manifestations such as shortness of breath, nausea, etc. among which chest pain is the most common. Previous studies have reported that the clinical presentation of AMI patients with branch vessel disease is indistinguishable from epicardial coronary vessel disease. However, our experience suggests patients with branch vessel disease experience severe chest pain, especially those with a diagonal branch. Therefore, we aim to study the association of chest pain severity with isolated diagonal branch vessel disease as a culprit vessel in AMI patients.

Methods: It is a retrospective case-control design, where 10 …

Outcomes Of Left Main Percutaneous Coronary Intervention, Nasir Rahman, Bilal Hussain, Azmina Artani

Section of Cardiology

Objective: To study the outcomes of left main percutaneous coronary artery (LMCA) revascularisation.

Study Design: A descriptive study.

Place and Duration of Study: The Aga Khan University Hospital (AKUH), Karachi, from February till July 2016.

Methodology: The study included all adult patients aged 18 years or more, who underwent percutaneous LMCA revascularisation at study centre from April 2006 till April 2015. In-hospital outcomes were ascertained of patients via charts along with telephonic follow-up for outcome ascertainment at 1-year and 5-year. Results were expressed in terms of means and standard deviation for quantitative variables and percentages for qualitative variables.

Results: Of …

Hyperdominant Left Anterior Descending Artery Presenting As Anterior Wall St Segment Elevation Myocardial Infarction: A Rare Coronary Anomaly, Shahrukh Hashmani Dr., Abid Laghari

Section of Cardiology

We report on a 75 year-old man who presented with severe chest pain for four hours. Physical examination was unremarkable and he was haemodynamically stable. ECG done in the ED showed ST segment elevations along with Q waves in the anterior and inferior leads with T wave inversions. He was rushed to the catheterization lab where the left anterior descending (LAD) artery was 99%occluded in the proximal segment while distal left circumflex showed 50-60% lesion. He underwent primary percutaneous coronary intervention to LAD with drug eluting stent and made an uneventful recovery. The LADwas found to be wrapping around the …

May Measurement Month 2017: An Analysis Of The Blood Pressure Screening Campaign Results In Pakistan-South Asia, Mohammad Ishaq, Feroz Memon, Thomas Beaney, Xin Xia, Elsa Kobeissi, Neil R. Poulter

Section of Cardiology

Elevated blood pressure (BP) is a growing burden worldwide, leading to over 10 million deaths each year. May Measurement Month (MMM) is a global initiative aimed at raising awareness of high BP and to act as a temporary solution to the lack of screening programs worldwide. Hypertension is a global health concern for developing countries. In Pakistan, apart from few population-based studies which evaluated the prevalence of hypertension, there is no current nationally representative study (the latest nationwide survey was conducted more than two decades ago). Pakistan Hypertension League, in accordance with the International Society of Hypertension directive under the …

Role Of Surgery In Spinal Metastases, Altaf Ali Laghari, Humza Faisal Siddiqui, Muhammad Shahzad Shamim

Section of Cardiology

Spinal metastases constitute two-third of all cases of bone metastases. Surgical intervention in these tumours has been recommended in highly selective cases, for confirming diagnosis, stabilizing the spine, and decompressing nerves or spinal cord for alleviation of pain and preservation of function.In this article,the authors have reviewed available evidence on role of surgery in spinal metastases and have presented results of selected papers on this vast topic.

Defining The Hemodynamic Response Of Hypertensive And Normotensive Subjects Through Serial Timed Blood Pressure Readings In The Clinic, Hunaina Shahab, Hamza Sohail Khan, Aysha Almas, Sohail Abrar Khan, Azmina Artani, Aamir Hameed

Section of Cardiology

Background: Every third patient in the clinic is misdiagnosed due to white-coat phenomenon, necessitating needless and costly treatment. We aimed to study the hemodynamic response of the physician's visit on hypertensive and normotensive patients by investigating the trend of blood pressure (BP) before, during and 15 min after the physician-patient encounter.
Methods: A descriptive, cross-sectional study was conducted over a period of 8 months in the cardiology clinics at the Aga Khan University Hospital, Karachi. Both hypertensive and normotensive patients, aged ≥18 years, were recruited. Pregnant females or those with a history of volume loss were excluded. BP readings were …