Highly frequent users of a Swiss academic ED are a highly vulnerable population. They are in poor health and accumulate several risk factors of being even in poorer health. The small number of patients and their high level of insurance coverage make it particularly feasible to design a specific intervention to approach their needs, in close collaboration with their primary care practitioner. Elaboration of the intervention should focus on social reinsertion and risk-reduction strategies with regard to substance use, hospital admissions and suicide.
Lumbar paraspinal compartment syndrome is an extremely uncommon condition that is known to occur after strainful exercise or trauma. We report on the original case of a 55-year-old man in whom lumbar paraspinal rhabdomyolysis and compartment syndrome developed after open abdominal aortic aneurysm repair, documented with technetium Tc(99m) bone scan and computed tomographic imaging, and in whom successful complete recovery was achieved with conservative management. Clinical features, pathophysiology, and diagnostic and therapeutic strategies of this unusual adverse event are discussed.
We examined risk factors for avascular bone necrosis (AVN) particularly focusing o the question of whether antiretroviral treatment (ART) is associated with the emergence of osteonecrosis. After 11 years of following the entire cohort, 26 patients were found to have AVN. Compared to 260 concurrent HIV-infected controls, at risk when cases were diagnosed, patients with AVN had lower CD4 cell count nadirs (median 86.5 versus 137.5 cells/microl, p = 0.010) and suffered significantly more often from Pneumocystis pneumonia, cerebral toxoplasmosis, CMV retinitis, and atypical mycobacteriosis and had a significantly higher body mass index than controls. Duration of ART before AVN was not significantly different between cases and controls (2.92 versus 2.17 years, p = 0.30). In conclusion, AVN could not be attributed to time on antiretroviral treatment, but patients with AVN had histories of more severe immunosuppression and a higher body mass index than controls.
We describe the case of a patient with a culture-proven infection of the ascending aorta caused by Legionella pneumophila 16 months after cardiac transplantation. Serology follow-up and surveillance culture of the hospital water supply suggested a nosocomial acquisition of the infection during the post-transplantation period. The diagnosis was made after 5 months of recurrent unexplained febrile episodes. A Teflon ring implanted around the aortic suture line during the intervention may have contributed to the unusual localization of the infection. The patient was successfully treated with antibiotics and aortic reconstruction.
Placement of an occluding endograft associated with axillofemoral bypass grafting is a good alternative for patients at high risk with complex anatomic features. Longer-term follow-up study is needed to evaluate this endoluminal technique.
Although color Doppler sonography may detect substantial perigraft leaks, helical CT is superior for detecting the origin of the perigraft leak, the outflow vessels, and the detection of complications related to the procedure.
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