Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 8 de 8
Filtrar
2.
Cardiovasc Intervent Radiol ; 39(8): 1203-8, 2016 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-27076178

RESUMO

Benign prostate obstruction with associated lower urinary tract symptoms is a common diagnosis with multiple minimally invasive treatment options available. Herein, the authors describe three patients who failed prior different urological interventions who underwent prostate artery embolization with a subsequent improvement in symptoms. The positive response suggests that embolization may be an effective treatment alternative in this subset of patients.


Assuntos
Técnicas de Ablação/métodos , Embolização Terapêutica/métodos , Próstata/irrigação sanguínea , Doenças Prostáticas/terapia , Idoso , Humanos , Sintomas do Trato Urinário Inferior/complicações , Sintomas do Trato Urinário Inferior/terapia , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Próstata/diagnóstico por imagem , Doenças Prostáticas/complicações , Doenças Prostáticas/diagnóstico por imagem , Tomografia Computadorizada por Raios X , Resultado do Tratamento
3.
J Radiol Case Rep ; 9(10): 9-17, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26629289

RESUMO

Transplant renal artery stenosis (TRAS) is a vascular complication frequently seen because of increase in the number of renal transplantations. Early diagnosis and management is essential to optimize a proper graft function. Currently, the endovascular treatment of TRAS using angioplasty and/or stenting is considered the treatment of choice with the advantage that it does not preclude subsequent surgical correction. Treatment of TRAS with the use of stents, particularly in tortuous transplant renal anatomy presents a unique challenge to an interventional radiologist. In this study, we present three cases from our practice highlighting the use of a balloon-expandable Multi-Link RX Ultra coronary stent system (Abbott Laboratories, Abbott Park, Illinois, USA) for treating high grade focal stenosis along very tortuous renal arterial segments. Cobalt-Chromium alloy stent scaffold provides excellent radial force, whereas the flexible stent design conforms to the vessel course allowing for optimal stent alignment.


Assuntos
Angioplastia , Transplante de Rim/efeitos adversos , Obstrução da Artéria Renal/etiologia , Obstrução da Artéria Renal/terapia , Stents , Idoso , Diagnóstico Diferencial , Diagnóstico por Imagem , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Desenho de Prótese , Artéria Renal/anatomia & histologia , Obstrução da Artéria Renal/diagnóstico , Resultado do Tratamento
4.
Tech Vasc Interv Radiol ; 18(3): 170-5, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-26365547

RESUMO

Irreversible electroporation (IRE) induces cell death by exposing it to high-voltage, low-energy DC current pulses. The mechanism of cell death and healing is a departure from the other existing technologies such as radiofrequency ablation, microwave ablation, and cryoablation. These thermal ablative technologies have several applications in oncology but have limitations that have also been established. IRE has shown promise to overcome some of these limitations and has enabled the use of an ablative technology in treating lesions close to the bile ducts and vasculature and in organs such as the pancreas. This review highlights some of the niche applications of IRE and the data so far.


Assuntos
Técnicas de Ablação , Eletroporação/métodos , Neoplasias/cirurgia , Cirurgia Assistida por Computador/métodos , Técnicas de Ablação/efeitos adversos , Técnicas de Ablação/instrumentação , Idoso , Morte Celular , Eletroporação/instrumentação , Desenho de Equipamento , Feminino , Humanos , Masculino , Neoplasias/patologia , Tomografia por Emissão de Pósitrons , Complicações Pós-Operatórias/etiologia , Fatores de Risco , Cirurgia Assistida por Computador/efeitos adversos , Cirurgia Assistida por Computador/instrumentação , Tomografia Computadorizada por Raios X , Resultado do Tratamento
5.
J Vasc Interv Radiol ; 26(8): 1205-11, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25990134

RESUMO

PURPOSE: To determine if proximal splenic artery embolization (PSAE) provides a safe and effective alternative to alleviate chemotherapy-induced thrombocytopenia (CIT), allowing patients with cancer to resume chemotherapy regimens. MATERIALS AND METHODS: Thirteen patients (9 men, 4 women; mean age, 63 y) with underlying malignancy (pancreatic adenocarcinoma, n = 6; cholangiocarcinoma, n = 5; other, n = 2) complicated by CIT underwent PSAE. Mean platelet counts were calculated before the initiation of chemotherapy, at the nadir that resulted in discontinuation of chemotherapy before the PSAE procedure, at peak values after the procedure, and at a mean follow-up of 9.2 months. The time to reinitiation of chemotherapy after PSAE was calculated. RESULTS: Baseline platelet count before initiation of chemotherapy was 162 × 10(9)/L (range, 90-272 × 10(9)/L). The platelet count nadir resulting in cessation of chemotherapy was 45 × 10(9)/L (range, 23-67 × 10(9)/L), and the pre-PSAE platelet count was 88 × 10(9)/L (range, 49-131 × 10(9)/L). The post-PSAE peak platelet count improved significantly (to 209 × 10(9)/L; range, 83-363 × 10(9)/L) compared with the nadir counts and the pre-PSAE counts (P < .01) at a mean short-term follow-up of 35 days (range, 7-91 d). The counts at follow-up to 9.2 months (range, 3-15 mo) were 152 × 10(9)/L (range, 91-241 × 10(9)/L). All patients became eligible to resume chemotherapy. The time to initiation of chemotherapy after PSAE averaged 22 days (range, 4-58 d) in 12 patients; one patient declined chemotherapy. CONCLUSIONS: Proximal splenic artery embolization appears to be safe and effective in alleviating CIT, allowing resumption of systemic chemotherapy. Further studies may help guide patient selection by identifying characteristics that allow a sustained improvement in thrombocytopenia.


Assuntos
Antineoplásicos/efeitos adversos , Embolização Terapêutica/métodos , Artéria Esplênica/efeitos dos fármacos , Trombocitopenia/induzido quimicamente , Trombocitopenia/terapia , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento
6.
Cardiovasc Intervent Radiol ; 38(4): 922-8, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25392237

RESUMO

PURPOSE: The purpose of this study was to evaluate need for antibiotic prophylaxis for radiofrequency ablation (RFA) of liver tumors in patients with no significant co-existing risk factors for infection. MATERIALS AND METHODS: From January 2004 to September 2013, 83 patients underwent 123 percutaneous RFA procedures for total of 152 hepatocellular carcinoma (HCC) lesions. None of the patients had pre-existing biliary enteric anastomosis (BEA) or any biliary tract abnormality predisposing to ascending biliary infection or uncontrolled diabetes mellitus. No pre- or post-procedure antibiotic prophylaxis was provided for 121 procedures. Data for potential risk factors were reviewed retrospectively and analyzed for the frequency of infectious complications, including abscess formation. RESULTS: One patient (1/121 (0.8%) RFA sessions) developed a large segment 5 liver abscess/infected biloma communicating with the gallbladder 7 weeks after the procedure, successfully treated over 10 weeks with IV and PO antibiotic therapy and percutaneous catheter drainage. This patient did not receive any antibiotics prior to RFA. During the procedure, there was inadvertent placement of RFA probe tines into the gallbladder. No other infectious complications were documented. CONCLUSION: These data suggest that the routine use of prophylactic antibiotics for liver RFA is not necessary in majority of the patients undergoing liver ablation for HCC and could be limited to patients with high-risk factors such as the presence of BEA or other biliary abnormalities, uncontrolled diabetes mellitus, and large centrally located tumors in close proximity to central bile ducts. Larger randomized studies are needed to confirm this hypothesis.


Assuntos
Antibioticoprofilaxia , Carcinoma Hepatocelular/cirurgia , Ablação por Cateter , Neoplasias Hepáticas/cirurgia , Idoso , Idoso de 80 Anos ou mais , Carcinoma Hepatocelular/diagnóstico por imagem , Feminino , Humanos , Fígado/diagnóstico por imagem , Fígado/cirurgia , Neoplasias Hepáticas/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Radiografia Intervencionista , Estudos Retrospectivos , Tomografia Computadorizada por Raios X , Resultado do Tratamento
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...