Percutaneous management of a choledochocutaneous fistula.
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Balloon Occlusion↗
Biomedical subjects
S Grubnic
Publications and source records attributed to S Grubnic.
Primary lymphoma of the lung simulating bronchiolitis: radiologic findings.
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Bronchiolitis↗
Comparative efficacy of and sequence choice for two oral contrast agents used during MR imaging.
OBJECTIVE: Our objective was to compare the efficacy of a positive and a negative oral contrast agent and to determine the optimal sequence choice for use in pelvic MR imaging. SUBJECTS AND METHODS: We undertook a prospective randomized trial of 57 patients with pelvic cancer who were examined with MR imaging after oral administration of a positive contrast agent (27 patients) or a negative contrast agent (30 patients). T1- and T2-weighted breath-hold and non-breath-hold gradient-recalled echo and turbo spin-echo sequences were obtained. Using the hard-copy images, we graded filling and distention of the small bowel, bowel wall conspicuity, delineation of normal and pathologic structures, and artifacts. RESULTS: Good or excellent small-bowel filling and distention was obtained in 17 patients (63%) receiving the positive agent and in 26 patients (87%) receiving the negative agent, and bowel wall conspicuity was graded good or excellent in 19 patients (70%) and 20 patients (67%), respectively. Normal and pathologic structures were better delineated with the negative agent (20 patients [74%] and 27 patients [90%], respectively; p = .02). Breath-hold gradient-recalled echo T1-weighted images were preferred for the positive agent (78%), and breath-hold T2-weighted images were preferred for the negative agent (93%). Contrast artifacts were more frequently seen with the negative agent (11% and 93%, respectively; p = .0001), and such artifacts were eliminated using T2-weighted sequences. CONCLUSION: Both contrast agents were effective in pelvic MR imaging, but delineation of normal and pathologic structures was better with the negative agent. Gradient-recalled echo T1-weighted sequences are recommended for positive contrast agents, and breath-hold T2-weighted sequences are recommended for negative contrast agents.
Administration, Oral↗
Transbrachial arteriography: indications and complications.
PURPOSE: to retrospectively evaluate brachial artery puncture at the antecubital fossa with regard to the indications for and complications arising from the procedure. PATIENTS AND METHODS: Sixty-two cumulative brachial artery punctures in fifty-three patients over a 5-year-period were retrospectively studies. RESULTS: In the majority of cases the brachial approach was utilised in order to avoid groin puncture in patients with absent femoral pulses or recent graft surgery. Occasionally it was performed as a more direct method of assessing upper limb arterial anatomy. Catheter sizes ranged from 3F to 8F. Fifty-one (82%) of the procedures were diagnostic and 11 (18%) were interventional. Glyceryl trinitrate was routinely administered. The overall incidence of complications was low (8%) and included haematoma and arterial spasm. None required surgical intervention and all resolved without permanent sequelae. CONCLUSION: Brachial artery puncture at the antecubital fossa is a suitable site of access for both diagnostic and interventional procedures. Potential limitations are the long distance from puncture site to that of intervention and damage to the brachial artery can result in upper limb ischaemia. Percutaneous brachial artery puncture at the antecubital fossa is, however, a low-risk alternative to either intravenous digital subtraction angiography or axillary artery puncture in patients in whom the femoral approach is contraindicated.
Aged↗
A comprehensive analysis of craniofacial trauma.
A review of the literature identified a need for a prospective study of the complete range of craniofacial trauma. The aims of this study were to determine the incidence, etiology, and mechanisms of craniofacial and associated injuries, enabling a greater understanding of their range and magnitude. Nine hundred fifty consecutive patients seen at an urban university hospital with any degree of craniofacial trauma were prospectively investigated. Craniofacial trauma was found to be very common at all ages. The causes were directly related to age, sex, and alcohol consumption, and determine the type and severity of injury. The commonest cause of soft-tissue injury was falls, whereas that of fractures was interpersonal violence. Falls accounted for most of the injuries in children and the elderly, whereas interpersonal violence was mainly responsible for those occurring in patients aged 15 to 50 years. Interpersonal violence mostly involved young male adults: fights occurring mainly between strangers who had consumed excessive amounts of alcohol. Women were usually assaulted by assailants known to them, their partners. Pedestrians showed a propensity to sustain cranial fractures, whereas motor vehicle occupants tended to sustain midfacial fractures and bicyclists mandibular fractures. Pedestrians incurred the severest injuries of all road users, and a significant proportion of road user collisions involved bicyclists. Sports were responsible for a significant proportion of craniofacial injuries in youths and young adults. Craniofacial soft-tissue injuries overall occurred most frequently on the forehead, nose, lips, and chin, and a method for their classification is proposed. The commonest craniofacial fracture was that of the nasal bones (45%), followed by cranial bones (24%), mandible (13%), zygoma (13%), orbital blow-out (3%), and maxilla (2%). The incidence of craniofacial trauma can be greatly reduced by improvements in interior home design, school education in alcohol abuse and handling potentially hostile situations (especially for men), improvement in automotive safety devices and compliance by motor vehicle occupants, and utilization of full-face helmets by bicyclists and motorcyclists.
Accidental Falls↗
Evaluation of the pullback atherectomy catheter in the treatment of lower limb vascular disease.
PURPOSE: To evaluate prospectively the Pullback Atherectomy Catheter (PAC) in terms of its technical success and 1-year patency in the treatment of lower limb vascular disease.M ETHODS: Thirty-nine PAC procedures were performed in 34 patients to treat atherosclerotic disease (occlusive in 51%) of the femoropopliteal arteries, including four cases of graft neointimal hyperplasia and three dissection flaps. Follow-up was by ankle-brachial indices at 24 hr and 1 month, and arteriography at 6 and 12 months. RESULTS: Technical success was achieved in 38 of 39 procedures (97.4%). There was a reduction in mean stenosis from 89.4% to 12.1%, but 69.2% of procedures required additional balloon dilatation to achieve an adequate arterial lumen. Complications followed 15.4% of procedures, a third of which required surgery. CONCLUSION: The PAC is an easy and relatively safe catheter to use, but does not provide a satisfactory arterial lumen without additional percutaneous transluminal angioplasty (PTA). It proved to be effective, however, in the treatment of graft neointimal hyperplasia and in the resection of obstructive intimal flaps following PTA.
Aged↗