Endovascular treatment of cerebral aneurysm after renal transplantation in polycystic kidney disease.

Background Patients with polycystic kidney disease have a higher prevalence of intracranial aneurysms and may progress to renal failure requiring transplantation. The endovascular treatment of intracranial aneurysms may improve prognosis, since rupture often causes premature death or disability, but the nephrotoxicity risk associated with contrast medium must be always considered in cases of renal impairment. Methods A 55-year-old female patient with polycystic kidney disease and grafted kidney associated with anterior communicant artery aneurysm was successfully treated by embolization. Results The renal function remained normal after the procedure. To the authors' knowledge, this is the first case of endovascular treatment of brain aneurysm in a transplanted patient reported in the medical literature. Conclusions The endovascular procedure in renal transplant patients is feasible and can be considered to treat this population. Further studies and cases are needed to confirm its safety.

Carotid cavernous fistula after percutaneous balloon compression for trigeminal neuralgia: Endovascular treatment with coils.

BACKGROUND: Percutaneous ganglyolysis treatment of trigeminal neuralgia is rarely associated with vascular complications, such as hematoma, subarachnoid hemorrhage, and stroke. Internal carotid artery injury may also occur after misguided needle placement, particularly far posteriorly or medially, resulting in carotid cavernous fistula. Anatomical variations of the foramen ovale can predispose those complications. CASE DESCRIPTION: A young woman diagnosed with trigeminal neuralgia during 11 years was submitted to a balloon rhizotomy by percutaneous approach to the trigeminal ganglion, with severe intraoperative bleeding. Cavernous syndrome developed few hours later. Magnetic resonance imaging and digital subtraction angiography confirmed an indirect carotid cavernous sinus fistula, which was treated by one session of endovascular procedure using coils, achieving total occlusion of the fistula and total recovery of the symptoms. CONCLUSIONS: Embolization with coils is a minimally invasive, safe, and effective procedure for the treatment of carotid cavernous fistulas, including those related to iatrogenic causes.

Relato de caso: biópsia renal por via transjugular / Relate of case: Renal biopsy through transjugular way

A realizaçäo de biópsia renal por via percutânea nem sempre é possível, especialmente na vigência de distúrbio de coagulaçäo significativo. Em novembro de 1997, no Hospital Universitário Evangélico de Curitiba, foi realizada uma biópsia renal por via tranjugular (VT) em uma paciente com suspeita de mieloma múltiplo que apresentava-se com um quadro de insuficiência renal e plaquetopenia (contagem de 30.000 plaquetas/mm3).O procedimento mostrou-se seguro, näo apresentando complicaçöes pós-biópsia e obtendo-se dois fragmentos com seis glomérulos em cada amostra, os quais possibilitaram o diagnóstico de "rim do mieloma". A biópsia por VTJ mousto-se um método seguro e eficaz quando da impossibilidde da realizaçäo desse procedimento por via percutânea