Renal artery stenosis (RAS) is a treatable cause of hypertension and renal failure for which no ideal screening technique is currently available. We evaluated the use of dynamic gadolinium-enhanced magnetic resonance angiography (MRA) for the diagnosis of RAS. Sixty-two patients with secondary hypertension were enrolled in the study. All patients had conventional renal angiography and gadolinium enhanced MRA. The sequence used was a 3D FMP SPGR sequence with the following parameters (TR: 26 ms, TE: 6.9 ms, flip angle 40 degrees, field of view 36 x 36 cm, matrix 246 x 256, 1 excitation). Gadolinium 0.3 mmol/kg was administered and 60 1. 5-mm-thick partitions were obtained over a duration of 3.5 min. The MRA images were then compared with conventional digital subtraction angiography (DSA) images. Conventional DSA demonstrated 138 renal arteries, whereas gadolinium-enhanced MRA demonstrated 129 (93 %). Twenty-one renal artery stenoses and four occluded arteries were seen at conventional DSA. Gadolinium-enhanced MRA had a sensitivity of 88 %, specificity of 98 %, accuracy of 96 %, positive predictive value of 92 % and negative predictive value of 97 % when compared with conventional DSA. Gadolinium-enhanced MRA is an accurate technique for identifying patients with RAS. It is less sensitive in picking up accessory renal arteries.
Summary:A 14 year old girl presented with cardiac tamponade due to a haemorrhagic pericardial effusion. Systemic lupus erythematosus was diagnosed. Pericardial stripping was performed due to recurrence of the effusion despite pericardiocentesis and steroid therapy.
IntroductionThis study explored the reflective writing (RW) of senior medical students across a co-ordinated reflection education programme in General Practice, Paediatrics and Psychiatry clerkships during their transition to clinical clerkships. The study compared RW themes from within and across three clerkships in order to understand the influence clerkships had on experiential learning and developing professional identity.
MethodsAll medical students in their penultimate year were invited to participate in the study. 135 reflection assignments were analysed. A qualitative thematic analysis of students' RW was performed. An inductive approach was used and data saturation was achieved.
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