Mohammed Tawfiq Numan

Learn More
OBJECTIVE To study the development of noncompaction of the ventricular myocardium (NCCM) in the state of Qatar and to highlight the prognostic parameters in those patients. METHODS We conducted this study from 2000 to 2004 on patients who were referred to Hamad General Hospital with questionable echocardiographic features of cardiomyopathy with or without(More)
Ibn Al Nafis, born 1213, was the first to discover the “circulation lesser” and describe the blood flow from the right ventricle to the lungs then back to the left ventricle 300 years before William Harvey. He bravely rejected the theory of Galen (130–200 AD) and Avicenna (980–1037 AD) which stated that the blood from the right ventricle passes through(More)
Our studies have established that a single intracardiac administration of the retroviral vector containing angiotensin II type I receptor antisense gene causes prolonged antihypertensive actions in the spontaneously hypertensive rat. These results suggest that antisense gene therapy is a conceptually valid strategy for the control of hypertension at the(More)
Different devices have been used for percutaneous closure of ventricular septal defects (VSDs). Over the past 6 months, we have used the Amplatzer duct occluder for VSDs associated with tunnel-shaped aneurysm in three patients here at our institution. Due to the anatomic resemblance between such VSDs and the duct occluder, we selected this device for(More)
Fenestrated atrial septal defects (F-ASDs) may pose a challenge to device closure; recently, a cribriform device with a minimal connecting intrawaist diameter and large, equal left- and right-sided discs has been designed to cover more than one adjacent defect. This study demonstrates the feasibility and technical aspects of closing F-ASDs using this new(More)
OBJECTIVE Biogenic amine brain levels and their cerebral metabolism are frequently studied by quantitation of biogenic amine metabolites in cerebrospinal fluid (CSF) compared to age-matched controls. There is a paucity of studies in adolescents and young adults investigating the potential role of disordered cerebral biogenic amine metabolism in young(More)
OBJECTIVES To report the rates of cardiomyopathies in the population below 50 years of age in Qatar. SUBJECTS AND METHODS We conducted a retrospective review of clinical data on patients with cardiomyopathy who were hospitalized in Hamad General Hospital, Doha. Data were collected from medical records during the 1996-2002 period and prospectively from the(More)
Cardiac asystole during HUTT has been described by some investigators as a benign finding with no major sequelae. Our aim in this study is to correlate the severity of clinical symptoms and physiologic findings prior and during the asystole occurrence. This is a retrospective study review of 536 patients who underwent HUTT for dysautonomia symptoms for the(More)
Cardiogenic unilateral pulmonary edema (UPE) is a rare clinical condition and not readily recognized early and managed accordingly. Acute rheumatic fever, which is a common disease in developing countries, does not commonly present with UPE. We report a 13-year-old girl presenting with UPE following acute rheumatic fever mimicking pneumonia. We conclude(More)
To investigate patterns of change in cerebral perfusion during head-up tilt testing (HUTT) in children and young adults with autonomic dysfunction. We utilized near-infrared spectroscopy (NIRS) to estimate bilateral cerebral perfusion patterns during HUTT in 71 adolescents and young adults with a diagnosis of autonomic dysfunction. In addition, we used(More)