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1.
World J Surg ; 37(6): 1430-7, 2013 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-23456259

RESUMEN

BACKGROUND: Graft pseudoaneurysm (PSA) following pancreatic transplantation (PT) is a rarely reported complication that has significant morbidity and mortality. Few case reports and small series of this complication exist. METHODS: Retrospective review of files of 106 patients who underwent PT at the Tel-Aviv Sourasky Medical center between 1995 and 2010. Accessible asymptomatic patients (n = 35) were referred for graft PSA screening using ultrasound-Doppler. RESULTS: Eight patients developed graft PSA (8 %). All had early posttransplant sepsis. PSA incidence among patients who had perioperative sepsis is 13 %. Three patients developed early postoperative PSA, presenting as massive abdominal bleeding requiring urgent laparotomy and graft resection. Five patients were diagnosed with late-onset graft PSA between 3 months and 11 years posttransplant: clinical presentations were massive gastrointestinal bleeding (n = 2), acute renal failure (n = 1), and asymptomatic finding on screening ultrasound-Doppler (n = 2, 6 % of screened patients). CONCLUSIONS: PSA following PT occurs in 8 % of patients. Perioperative infection is a risk factor. Early PSAs present as massive intra-abdominal bleeding. PSA may develop years posttransplant, may be asymptomatic, but late rupture is possible and presents as gastrointestinal bleeding. We recommend screening of patients at risk with ultrasound Doppler for early detection and treatment of asymptomatic PSAs.


Asunto(s)
Aneurisma Falso/epidemiología , Aneurisma Falso/cirugía , Trasplante de Páncreas , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/cirugía , Adulto , Aneurisma Falso/diagnóstico por imagen , Femenino , Humanos , Incidencia , Masculino , Complicaciones Posoperatorias/diagnóstico por imagen , Estudios Retrospectivos , Ultrasonografía Doppler
2.
J Clin Oncol ; 41(14): 2503-2510, 2023 05 10.
Artículo en Inglés | MEDLINE | ID: mdl-36669135

RESUMEN

PURPOSE: Cancer is the second leading cause of death globally. However, by implementing evidence-based prevention strategies, 30%-50% of cancers can be detected early with improved outcomes. At the integrated cancer prevention center (ICPC), we aimed to increase early detection by screening for multiple cancers during one visit. METHODS: Self-referred asymptomatic individuals, age 20-80 years, were included prospectively. Clinical, laboratory, and epidemiological data were obtained by multiple specialists, and further testing was obtained based on symptoms, family history, individual risk factors, and abnormalities identified during the visit. Follow-up recommendations and diagnoses were given as appropriate. RESULTS: Between January 1, 2006, and December 31, 2019, 8,618 men and 8,486 women, average age 47.11 ± 11.71 years, were screened. Of 259 cancers detected through the ICPC, 49 (19.8%) were stage 0, 113 (45.6%) stage I, 30 (12.1%) stage II, 25 (10.1%) stage III, and 31(12.5%) stage IV. Seventeen cancers were missed, six of which were within the scope of the ICPC. Compared with the Israeli registry, at the ICPC, less cancers were diagnosed at a metastatic stage for breast (none v 3.7%), lung (6.7% v 11.4%), colon (20.0% v 46.2%), prostate (5.6% v 10.5%), and cervical/uterine (none v 8.5%) cancers. When compared with the average stage of detection in the United States, detection was earlier for breast, lung, prostate, and female reproductive cancers. Patient satisfaction rate was 8.35 ± 1.85 (scale 1-10). CONCLUSION: We present a proof of concept study for a one-stop-shop approach to cancer screening in a multidisciplinary outpatient clinic. We successfully detected cancers at an early stage, which has the potential to reduce morbidity and mortality as well as offer substantial cost savings.[Media: see text].


Asunto(s)
Detección Precoz del Cáncer , Neoplasias de los Genitales Femeninos , Masculino , Humanos , Femenino , Estados Unidos , Adulto , Persona de Mediana Edad , Adulto Joven , Anciano , Anciano de 80 o más Años , Mama , Pulmón , Sistema de Registros , Tamizaje Masivo
3.
Pediatr Radiol ; 42(10): 1229-34, 2012 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-22706801

RESUMEN

BACKGROUND: Eyes with persistent fetal vasculature (PFV) may be mistaken for retinoblastoma and provide a diagnostic challenge. OBJECTIVE: This study aimed to evaluate the role of color Doppler imaging (CDI) in children with persistent fetal vasculature. MATERIALS AND METHODS: Eyes with a diagnosis of PFV were evaluated by CDI. RESULTS: Twenty eyes of 17 children were included. All had a confirmed diagnosis of PFV based on one or more of the following: clinical findings on funduscopy, characteristic findings on imaging modalities (ophthalmic gray-scale US, CT and/or MRI), typical findings observed intraoperatively, and histopathological analysis (after enucleation in one case). Blood flow within the PFV was demonstrated in 19 eyes in this series. CONCLUSION: CDI is a noninvasive diagnostic tool that may add useful information on the presence of blood flow within the PFV and may substantiate the diagnosis of PFV in cases of uncertainty.


Asunto(s)
Vítreo Primario Hiperplásico Persistente/diagnóstico por imagen , Ultrasonografía Doppler en Color/métodos , Niño , Preescolar , Diagnóstico Diferencial , Femenino , Humanos , Lactante , Recién Nacido , Masculino , Reproducibilidad de los Resultados , Neoplasias de la Retina/diagnóstico por imagen , Retinoblastoma/diagnóstico por imagen , Sensibilidad y Especificidad
4.
J Pediatr Orthop B ; 16(2): 153-9, 2007 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-17273045

RESUMEN

This study was undertaken to review our approach to diagnosis and treatment in a series of 11 patients (mean age 8.2 years) with primary pyomyositis, who had neither an underlying disease nor a compromised immune system. Nine of the children had positive blood cultures, Staphylococcus aureus (eight) and Streptococcus group A (one). The sites of infection were iliopsoas (four), obturator (two), hip adductors (two), levator scapula (one), thoracolumbar paraspinal (one) and gastrocnemius (one) muscles. Antibiotic treatment was initially intravenous, followed by oral administration. Of five patients with evidence of abscess formation, three underwent percutaneous drainage, whereas two required open surgical drainage. The infection resolved completely without any sequela in 10 children. One patient who developed acute compartment syndrome showed late signs of osteonecrosis of the tibial shaft segment.


Asunto(s)
Piomiositis/diagnóstico , Piomiositis/terapia , Antibacterianos/uso terapéutico , Sedimentación Sanguínea , Proteína C-Reactiva/análisis , Terapia Combinada , Drenaje , Femenino , Humanos , Imagen por Resonancia Magnética , Masculino , Piomiositis/tratamiento farmacológico , Piomiositis/cirugía , Estudios Retrospectivos , Tomografía Computarizada por Rayos X
5.
J Gastrointest Surg ; 10(3): 417-21, 2006 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-16504889

RESUMEN

Acute portal vein thrombosis (PVT) is a devastating complication of Budd-Chiari syndrome (BCS). Conservative approach, anticoagulation, systemic or transarterial thrombolysis, and urgent liver transplantation were applied in this scenario but with poor results. We present and discuss an approach to treat BCS complicated by acute PVT. Two young female patients presented with acute liver failure, rapidly progressive tense ascites, renal- and respiratory failure. The diagnosis of chronic BCS complicated by acute PVT was confirmed with ultrasound Doppler. Initial treatment was supportive. Right portal vein localization was by transarterial portogram or by computed tomography-guided microcoil placement. Transjugular intrahepatic portosystemic shunt (TIPS) was performed and included Wallstents and a Jograft in one case and Viatorr stentgraft that was extended later with a Hemobahn stentgraft in another. Mechanical clot removal from the portal system was performed in the primary procedure and in a revision procedure in the following few days. Stents were placed precisely with no extension into the inferior vena cava or deeply into the main portal vein. Patients were fully anticoagulated and patency was assessed by ultrasound Doppler. The procedures were performed on days 5 and 10 following admission. In both cases, successful thrombectomies were revised and maintained. Partial occlusion of the TIPS and reaccumulation of ascites were reversed with repeated procedure. Both patients were discharged without ascites and normal liver function. In conclusion, urgent TIPS and portal vein thrombectomy via TIPS are emerging therapeutic options that offer a safe and effective treatment to patients with BCS complicated by acute portal vein thrombosis.


Asunto(s)
Síndrome de Budd-Chiari/cirugía , Vena Porta , Derivación Portosistémica Intrahepática Transyugular , Enfermedad Aguda , Adulto , Femenino , Humanos , Persona de Mediana Edad
6.
J Laparoendosc Adv Surg Tech A ; 16(4): 374-7, 2006 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-16968186

RESUMEN

We report a case of a patient who presented with a large flank abscess 18 months after laparoscopic cholecystectomy. The patient underwent repeated percutaneous drainage but the abscess recurred. Further evaluation with ultrasound revealed subcutaneous tracks from the flank leading to the abdominal cavity and suspected stones in one of the tracks. Laparoscopy revealed dense adhesions at the level of the right gutter leading to a retroperitoneal track heading over to the flank. The tracks were partially opened, debrided, and two gallstones were retrieved from one of the retroperitoneal tracks. The patient's recovery was uneventful. This case demonstrates the potential migration of dropped gallstones to extraperitoneal sites leading to infectious complications. Careful dissection of the gallbladder with an attempt not to rupture it is important in order to prevent this complication. Once rupture does occur, efforts should be made to retrieve dropped stones from the peritoneal cavity. Patients presenting with intra- or extraperitoneal abscesses following laparoscopic cholecystectomy and no obvious source of infection should be evaluated for dropped stones.


Asunto(s)
Absceso Abdominal/etiología , Colecistectomía Laparoscópica/efectos adversos , Cálculos Biliares/complicaciones , Cálculos Biliares/cirugía , Infecciones por Pseudomonas/etiología , Absceso Abdominal/cirugía , Adulto , Drenaje , Dolor en el Flanco/etiología , Dolor en el Flanco/cirugía , Humanos , Masculino , Infecciones por Pseudomonas/cirugía , Reoperación
7.
J Nucl Med ; 46(1): 52-9, 2005 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-15632034

RESUMEN

UNLABELLED: Our objective was to assess the role of (18)F-FDG PET/CT in the evaluation of solid splenic masses in patients with a known malignancy and in incidentally found lesions in patients without known malignancy. METHODS: Two groups of patients were assessed: (a) 68 patients with known malignancy and a focal lesion on PET or a solid mass on CT portions of the PET/CT study; and (b) 20 patients with solid splenic masses on conventional imaging without known malignancy. The standard of reference was histology (n = 16) or imaging and clinical follow-up (n = 72). The lesion size, the presence of a single versus multiple splenic lesions, and the intensity of (18)F-FDG uptake expressed as a standardized uptake value (SUV) were recorded. The ratio of the SUV in the splenic lesion to the background normal splenic uptake was also calculated. These parameters were compared between benign and malignant lesions within each of the 2 groups of patients and between the 2 groups. RESULTS: The sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of (18)F-FDG PET/CT in differentiating benign from malignant solid splenic lesions in patients with and without malignant disease were 100%, 100%, 100%, and 100% versus 100%, 83%, 80%, and 100%, respectively. In patients with known malignant disease, an SUV threshold of 2.3 correctly differentiated benign from malignant lesions with the sensitivity, specificity, PPV, and NPV of 100%, 100%, 100%, and 100%, respectively. In patients without known malignant disease, false-positive results were due to granulomatous diseases (n = 2). CONCLUSION: (18)F-FDG PET can reliably discriminate between benign and malignant solid splenic masses in patients with known (18)F-FDG-avid malignancy. It also appears to have a high NPV in patients with solid splenic masses, without known malignant disease. (18)F-FDG-avid splenic masses in patients without a known malignancy should be further evaluated as, in our series, 80% of them were malignant.


Asunto(s)
Fluorodesoxiglucosa F18 , Tomografía de Emisión de Positrones/métodos , Neoplasias del Bazo/diagnóstico por imagen , Técnica de Sustracción , Tomografía Computarizada por Rayos X/métodos , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad , Radiofármacos , Reproducibilidad de los Resultados , Sensibilidad y Especificidad , Neoplasias del Bazo/diagnóstico
8.
Clin Cardiol ; 28(3): 149-53, 2005 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-15813624

RESUMEN

BACKGROUND: Recent reports of myocardial infarction in young persons infected with human immunodeficiency virus (HIV) who are receiving protease inhibitor therapy have raised concerns about premature coronary artery disease in this population. However, endothelial dysfunction, hypercoagulability, hypertriglyceridemia, and abnormal coronary artery pathology have been observed in association with HIV infection prior to the availability of protease inhibitor therapy. HYPOTHESIS: The study was undertaken to determine the association between endothelial function, viral load, CD4+ count, and other well-established risk factors for atherosclerosis. METHODS: This prospective, case-controlled study compared viral (HIV) load and the CD4+ T-lymphocyte count and endothelial function in 24 HIV-positive carriers. Brachial artery diameter, HIV viral load, and CD4 count were measured. RESULTS: We found that viral load correlated inversely with endothelial function; the higher the viral load, the worse the endothelial dysfunction (p < 0.005). CONCLUSION: High viral load appears to be associated with endothelial dysfunction in patients with HIV. This preliminary observation supports the infectious theory that viruses may play an important role in the pathogenesis of atherosclerosis.


Asunto(s)
Endotelio Vascular/fisiopatología , Infecciones por VIH/virología , Carga Viral , Adulto , Arteriosclerosis/virología , Recuento de Linfocito CD4 , Estudios de Casos y Controles , Infecciones por VIH/fisiopatología , Humanos , Masculino , Estudios Prospectivos , Factores de Riesgo
9.
Am J Ophthalmol ; 137(6): 1065-72, 2004 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-15183791

RESUMEN

PURPOSE: To evaluate the role of ultrasonography (US) and color Doppler imaging (CDI) in the diagnosis of orbital tumors in children. DESIGN: Retrospective nonrandomized interventional case series. METHODS: This study included 42 children with intraorbital and periorbital tumors who were evaluated in our clinic. All children underwent a complete clinical evaluation as well as orbital US and CDI. The children then underwent operation or were followed up, based on the clinical diagnosis and the findings on the imaging modalities. RESULTS: The mean age of the patients at diagnosis was 22.5 months (range 2 weeks-14 years old). Eighteen patients (12 female and 6 male) were diagnosed with hemangioma based on the findings in US and CDI; 16 patients (9 female and 7 male) were diagnosed with dermoid, 5 patients (4 female and 1 male) with lymphangioma, 2 patients with rhabdomyosarcoma, and 1 patient with a subperiostal abscess. Twenty-two patients underwent operation, and the diagnosis was confirmed on pathology. Twenty patients did not undergo operation and continued to be followed up in the clinic (mean follow-up period 38.2 months). The disease course in all patients who did not undergo operation was consistent with the working diagnosis. CONCLUSION: Both US and CDI are useful modalities in the diagnosis of intraorbital and periorbital tumors in the pediatric age group.


Asunto(s)
Quiste Dermoide/diagnóstico , Hemangioma Capilar/diagnóstico , Linfangioma/diagnóstico , Neoplasias Orbitales/diagnóstico , Rabdomiosarcoma/diagnóstico , Ultrasonografía Doppler en Color/métodos , Adolescente , Velocidad del Flujo Sanguíneo , Niño , Preescolar , Quiste Dermoide/fisiopatología , Quiste Dermoide/cirugía , Diagnóstico Diferencial , Femenino , Hemangioma Capilar/fisiopatología , Hemangioma Capilar/cirugía , Humanos , Lactante , Recién Nacido , Linfangioma/fisiopatología , Linfangioma/cirugía , Imagen por Resonancia Magnética , Masculino , Neovascularización Patológica/diagnóstico , Neoplasias Orbitales/fisiopatología , Neoplasias Orbitales/cirugía , Flujo Sanguíneo Regional , Estudios Retrospectivos , Rabdomiosarcoma/fisiopatología , Rabdomiosarcoma/cirugía
10.
Isr Med Assoc J ; 4(12): 1106-10, 2002 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-12516901

RESUMEN

BACKGROUND: Despite advances in cancer therapy the treatment of liver tumors remains a challenge. Most patients are poor candidates for surgical resection; both chemotherapy and irradiation have a low success rate and neither is without complications. New minimally invasive techniques for ablation of unresectable tumors have gained attention as effective treatment alternatives. Among these are percutaneous ethanol injection and radiofrequency ablation; both are effective for primary liver tumors and RFA is also effective for hepatic metastases. OBJECTIVE: To report our experience with PEI and RFA in the treatment of hepatic lesions. METHODS: The study included 49 lesions in 27 patients: 23 primary lesions in 13 patents treated with PEI and 26 lesions (22 secondary and 4 primary) in 14 patients treated with RFA. PEI was performed on an outpatient basis in the ultrasound suite; RFA was done in hospitalized patents (9 in the ultrasound suite and 4 in the operating room). Patients were followed with triphasic spiral computerized tomography 1 month after treatment and every 3-6 months thereafter. RESULTS: Complete necrosis was achieved with PEI on the first attempt in 11 of 23 primary lesions (91.3%). In 8.7% (2/23) a second series of treatments was required. Using RFA, complete necrosis was achieved in 85% of lesions (22/26) and partial necrosis in 15% (4/26). Complications included low fever (3 patients), high fever and abscess formation (1 patient), peri-tumoral necrosis (1 patient) and portal vein thrombosis (1 patient). CONCLUSIONS: Our preliminary results confirm that PEI and RFA are an effective and safe option for treating hepatic tumors in patients unfit for surgery.


Asunto(s)
Ablación por Catéter , Etanol/uso terapéutico , Neoplasias Hepáticas/terapia , Anciano , Ablación por Catéter/efectos adversos , Etanol/efectos adversos , Femenino , Humanos , Inyecciones Intralesiones , Neoplasias Hepáticas/tratamiento farmacológico , Masculino , Persona de Mediana Edad , Resultado del Tratamiento
11.
Clin Ophthalmol ; 8: 2325-32, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-25473257

RESUMEN

PURPOSE: We sought to assess long-term changes in the flow parameters of retrobulbar vessels in diabetic patients. METHODS: The retrobulbar circulation of 138 eyes was evaluated between 1994 and 1995 and 36 eyes were reevaluated between 2004 and 2008 (study group). They were divided into four groups: eyes of diabetic patients without diabetic retinopathy (DR), eyes with nonproliferative DR, eyes with proliferative DR, and eyes of nondiabetic patients (controls). Color Doppler imaging was used to assess the flow velocities in the major retrobulbar vessels. The resistive index (RI) was calculated and compared among the groups and between the two time periods. RESULTS: RI values of the central retinal artery and posterior ciliary artery had increased in the two non-DR groups and in the nonproliferative DR group, with a surprising decrease measured in eyes with proliferative DR (P= nonsignificant [NS]). Combining the nonproliferative DR and proliferative DR groups resulted in a milder increase of the RI of the posterior ciliary artery (P= NS) and the central retinal artery (P=0.02) in the DR group compared to the other groups. CONCLUSION: Our results demonstrate that an increase of the resistance in the retrobulbar vessels, as a part of DR, can lessen over time and may even be reversed.

12.
Acta Ophthalmol ; 90(8): 727-32, 2012 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-21457487

RESUMEN

PURPOSE: To evaluate the combined grey-scale ultrasonography (US) and colour Doppler imaging (CDI) as the first and primary imaging modalities in diagnosing paediatric orbital haemangiomas. METHODS: The charts of 20 consecutive children with a periorbital mass echographically diagnosed as a haemangioma between January 2004 and June 2009 in the Tel-Aviv Sourasky Medical Center were reviewed. Data on demographic details, clinical findings, US and CDI characteristics, treatment and outcome were retrieved. RESULTS: Twelve (60%) haemangiomas were located on the upper eyelid, five in the lower eyelid (25%) and three in the medial cantus (15%). The tumour resolved completely in 10 children (50%) and in 10 children (50%) partial resolution was documented. Seven (35%) patients underwent treatment (intralesional or oral steroids or propranolol). Grey-scale US depicted a solid-tissue mass with low internal echogenicity. Mean haemangioma volume was 1.33 cm(3) . Colour Doppler imaging demonstrated intralesional flow with a mean peak systolic velocity of 15.2 cm per second and a mean resistance index of 0.51. All US and CDI examinations were carried out on alert children and no sedation or general anaesthesia was needed. During mean follow-up time of 23 months, no child required any additional imaging or diagnostic procedures to confirm the diagnosis. CONCLUSION: Combined US and CDI are suggested as the first imaging modalities in cases with a suspected diagnosis of periocular and orbital capillary haemangioma.


Asunto(s)
Neoplasias de los Párpados/diagnóstico por imagen , Hemangioma Capilar/diagnóstico por imagen , Neoplasias Orbitales/diagnóstico por imagen , Ultrasonografía Doppler en Color , Antagonistas Adrenérgicos beta/uso terapéutico , Velocidad del Flujo Sanguíneo , Neoplasias de los Párpados/fisiopatología , Femenino , Estudios de Seguimiento , Glucocorticoides/uso terapéutico , Hemangioma Capilar/tratamiento farmacológico , Hemangioma Capilar/fisiopatología , Humanos , Lactante , Recién Nacido , Masculino , Regresión Neoplásica Espontánea , Neoplasias Orbitales/tratamiento farmacológico , Neoplasias Orbitales/fisiopatología , Propranolol/uso terapéutico
13.
Innovations (Phila) ; 6(5): 337-40, 2011 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-22436711

RESUMEN

OBJECTIVE: : Percutaneous radiofrequency ablation (RFA) is among the best options in the treatment of primary liver malignancy and metastases because it is a highly effective and minimally invasive alternative to resection in small, nonresectable tumors or in poor surgical candidates and is associated with low morbidity and mortality. We evaluated the clinical feasibility and safety of thoracoscopic, ultrasound (US)-guided RFA of subdiaphragmatic liver malignancies in advanced cirrhotic patients awaiting transplantation. METHODS: : Two patients (one female and one male) with end-stage cirrhosis who developed hepatocellular carcinoma were treated thoracoscopically by US-guided RFA. An endoscopic US probe was inserted into the right pleural space through a 10-mm working channel. An RF-operating needle applicator was inserted through a second 10-mm working port after identification of the lesion, penetrating the diaphragm toward the lesion. The procedure duration, applied energy, and generator output were recorded during the intervention. The treatment result and procedure-related complications were analyzed. RESULTS: : The procedure duration was 74 and 92 minutes, respectively. A mean energy deposition of 353 joules resulted in a mean coagulation volume of 115 cm. Tumor ablation was achieved as determined by the postinterventional lack of contrast enhancement in the target region at the follow-up computed tomographic scans performed after 4 months. CONCLUSIONS: : RFA offers definite possibilities in the management of small-sized tumors. Thoracoscopic, US-guided transdiaphragmatic RFA has proven to be clinically feasible and safe and can be an effective modality for treating subdiaphragmatic liver lesions. Its minimally invasive nature is the most important advantage compared with surgical resection, especially for patients with high operative risk.

14.
Oncol Rep ; 25(1): 91-6, 2011 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-21109962

RESUMEN

The objective of this study was to characterize and differentiate vascular patterns of choroidal melanomas and choroidal metastases by color flow mapping (CFM). We conducted a retrospective chart study on CFM findings in 18 patients with choroidal melanomas and 10 patients with choroidal metastases. We evaluated the possibilities of applying CFM to identify hypo- versus hyper-vascularity within the tumor, a central 'dominant vessel', and Doppler signals in the tumor's center and/or periphery. CFM demonstrated hypervascular patterns in 33% melanomas and 100% metastases (p<0.0001). CFM identified a central dominant vessel in 94% melanomas and 0/10 metastases (p<0.0001). Vascularity occupied the center of 11/18 melanomas and 0/10 metastases (p<0.0001), the periphery of 2/18 melanomas and 9/10 metastases (p<0.0001), and equally occupied the tumor's center and periphery of 5/18 melanomas and 1/10 metastases (p<0.0001). Based on our findings, we conclude that CFM was capable of non-invasively demonstrating different and distinct vascular patterns in malignant choroidal melanomas and choroidal metastases.


Asunto(s)
Neoplasias de la Coroides/diagnóstico por imagen , Neoplasias de la Coroides/secundario , Melanoma/diagnóstico por imagen , Melanoma/secundario , Ultrasonografía Doppler en Color , Neoplasias de la Úvea/diagnóstico por imagen , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Diagnóstico Diferencial , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Neoplasias de la Úvea/patología , Adulto Joven
15.
Eur J Trauma Emerg Surg ; 35(2): 108, 2009 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-26814762

RESUMEN

BACKGROUND: Proximal embolization of the splenic artery (PSAE) has recently been reported for traumatic splenic injury. The suggested mechanism of action entails a decrease in the splenic blood pressure without ischemia due to collateral blood supply. The main complications of selective embolization are continuous bleeding, splenic infarcts and splenic abscesses. The main complications of observation alone are continuous bleeding and formation of splenic pseudoaneurysms. Our aim was to assess the efficacy of PSAE in the cessation of bleeding without formation of pseudoaneurysms, and the outcome of the spleen after such intervention. METHODS: A prospective observational study of all patients undergoing PSAE for traumatic splenic injury in our institution over a 33-month period. Clinical and Doppler sonographic examinations were performed to assess cessation of bleeding, splenic blood flow, and formation of splenic pseudoaneurysms, infarcts or abscesses. RESULTS: During 33 months, 11 patients with blunt abdominal trauma and tomographic evidence of either high grade or actively bleeding splenic injuries were treated by PSAE. During follow-up, no patient underwent surgery or repeated embolization. Preserved blood flow was found on Doppler sonography in 82% of the patients and no pseudoaneurysms were demonstrated. A perisplenic collection was found in one patient and responded well to percutaneous drainage. CONCLUSIONS: Proximal embolization of the splenic artery for severe splenic injury is highly successful in cessation of bleeding while preserving splenic architecture. There were minimal complications in this series demonstrated by clinical and Doppler examinations.

16.
J Gastrointest Surg ; 12(8): 1412-7, 2008 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-18493825

RESUMEN

BACKGROUND: The real long-term outcome of a hepaticojejunostomy (HJ) to repair bile duct injury (BDI) is unclear, and the risk factors for repair failure are partially defined. STUDY DESIGN: A retrospective, nonrandomized study of the long-term outcome of biliary reconstructions after major BDIs. All injuries occurred in association with cholecystectomy. RESULTS: Twenty-nine patients were referred with complete transection of the common (n = 16), right (n = 5), or right sectoral (n = 4) hepatic ducts or of >1 major duct (n = 4) between October 2002 and January 2007. Mean follow-up was 24 months, range 12-60 months. Original repairs were "immediate" in 14, "delayed" (within 24-72h) in 5, and "elective" (after >8 weeks) in 10, and strictures developed in 9, 5, and 1 of those HJs, respectively. The surgical outcomes were significantly better when the intervention took place electively (p = 0.003). Original HJ repairs were done by a hepatobiliary surgeon (n = 23) or by a general surgeon (n = 6): the outcome was significantly better for the former (p < 0.001). CONCLUSIONS: The 51.7% incidence of strictures after BDI repair in this study was higher than reported in the literature, probably because of selection bias secondary to the referral pattern. The timing of repair and the surgeon's expertise are significant risk factors of failure.


Asunto(s)
Conductos Biliares/lesiones , Conductos Biliares/cirugía , Colecistectomía/efectos adversos , Yeyunostomía/métodos , Procedimientos de Cirugía Plástica/métodos , Adulto , Anciano , Anciano de 80 o más Años , Anastomosis en-Y de Roux/métodos , Femenino , Estudios de Seguimiento , Humanos , Complicaciones Intraoperatorias , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Factores de Riesgo , Insuficiencia del Tratamiento
17.
J Clin Ultrasound ; 35(2): 105-7, 2007 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-17195193

RESUMEN

We report the case of a 2-week-old male infant who developed necrosis of the glans penis as a result of circumcision. Based on the clinical absence of impairment of micturition on gray-scale and color Doppler sonographic findings, which showed the relatively superficial necrosis of the skin layers without underlying damage to the corpora cavernosa or urethra, a conservative approach was chosen with a good prognosis. A 4-month follow-up sonograpic examination revealed evidence of glans healing with superficial skin epithelization. These findings may lead to mild cosmetic damage, but no future functional complications are expected. To our knowledge, this is the first report of gray-scale and color Doppler sonographic evaluation of the ischemic process of the glans in a neonate with this rare complication of circumcision.


Asunto(s)
Circuncisión Masculina/efectos adversos , Pene/diagnóstico por imagen , Humanos , Recién Nacido , Masculino , Necrosis/diagnóstico por imagen , Pene/patología , Ultrasonografía Doppler en Color
18.
J Ultrasound Med ; 26(8): 1089-95, 2007 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-17646372

RESUMEN

OBJECTIVE: The purpose of this study was to describe and evaluate the sonographic and color Doppler features of tumorlike biliary and venous changes in patients with cavernous transformation of the portal vein (CTPV). METHODS: The sonographic studies of 24 patients with CTPV were reviewed. Sonographic evaluation of the biliary system included measurement of intrahepatic and extrahepatic biliary duct caliber changes and common bile duct (CBD) wall thickening and character. Color Doppler features of the portoportal collateral circulation at various locations (intrahepatic, periportal, gallbladder, pancreatic, and gastric regions) were carefully evaluated. RESULTS: Biliary abnormalities were detected in 13 (54%) of 24 patients with CTPV. All 13 patients (100%) had intrahepatic biliary dilatation; 11 patients (85%) had CBD abnormalities: diffuse CBD wall thickening causing diffuse narrowing of the true lumen in 7 (54%) and CBD dilatation proximal to the focal area of narrowing due to pericholedochal compressing venous collaterals in 4 (30%). A tumorlike solid mass appeared on the gray scale images of 2 patients (8%): 1 at the porta hepatis and the other at the pancreatic head level. Color Doppler imaging evaluation showed venous-type flow, suggesting a bulk of varicosities. CONCLUSIONS: Portoportal collaterals in patients with CTPV may alter the biliary and venous systems, causing biliary wall thickening, stenosis, intrahepatic and extrahepatic dilatation, and pseudotumors. Detailed sonographic and color Doppler imaging assessment can show and facilitate the correct diagnosis of those changes, thus avoiding the need for a more invasive modality such as endoscopic retrograde cholangiopancreatography or a more expensive investigation such as magnetic resonance cholangiopancreatography.


Asunto(s)
Enfermedades de los Conductos Biliares/diagnóstico por imagen , Conductos Biliares/patología , Circulación Colateral , Vena Porta/patología , Ultrasonografía Doppler en Color , Adolescente , Adulto , Anciano , Enfermedades de los Conductos Biliares/patología , Neoplasias de los Conductos Biliares/diagnóstico por imagen , Conductos Biliares/diagnóstico por imagen , Niño , Colangiocarcinoma/diagnóstico por imagen , Diagnóstico Diferencial , Femenino , Humanos , Hipertensión Portal/etiología , Masculino , Persona de Mediana Edad , Vena Porta/diagnóstico por imagen , Estudios Retrospectivos , Trombosis de la Vena/complicaciones
19.
Pediatr Radiol ; 36(9): 954-8, 2006 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-16819601

RESUMEN

BACKGROUND: Involution of neonatal ovarian cysts occurs usually by 12 months. Persisting cysts larger than 4 cm are prone to torsion. Two modes of therapy are advocated: surgery and percutaneous US-guided cyst aspiration. OBJECTIVE: To compare ovarian preservation following the use of US-guided aspiration or conventional surgery for the treatment of large asymptomatic neonatal ovarian cysts, and to suggest alternative treatment when intrauterine ovarian torsion occurs. MATERIALS AND METHODS: The study population comprised 25 baby girls with an ovarian cyst, 5 with a simple cyst and 20 with a complex cyst. Of these 25 infants, 8 had surgery and 17 had US-guided cyst aspiration. RESULTS: In the surgical group of 8, 6 underwent oophorectomy, and in 2 the ovary was saved. In the aspirated group of 17, the ovary was saved in 10, and was lost in 5. At the time of this report one patient was still in the follow-up period, and one was lost to follow-up. CONCLUSION: US-guided aspiration of large neonatal cysts preserves ovarian tissue in a higher percentage of patients than surgery. It is safe, effective, and repeatable. We recommend US-guided aspiration of asymptomatic large ovarian cysts for salvage or for decompression if intrauterine ovarian torsion occurs. Surgery should be reserved for patients with acute torsion, intestinal obstruction and intestinal volvulus.


Asunto(s)
Drenaje/métodos , Quistes Ováricos/terapia , Femenino , Humanos , Recién Nacido , Quistes Ováricos/diagnóstico por imagen , Estudios Retrospectivos , Ultrasonografía Intervencional
20.
Clin Gastroenterol Hepatol ; 4(5): 639-44, 2006 May.
Artículo en Inglés | MEDLINE | ID: mdl-16630771

RESUMEN

BACKGROUND & AIMS: Few controlled studies have addressed the issue of effective medical treatment for nonalcoholic fatty liver disease (NAFLD). We herein assessed the effect of orlistat in patients with NAFLD. METHODS: We performed a randomized, double-blind, placebo-controlled study on 52 patients with NAFLD diagnosed by ultrasound (US) and confirmed by liver biopsy (40 patients). The patients were randomized to receive either orlistat (120 mg 3 times daily for 6 months) or placebo. All patients participated in an identical behavioral weight loss program. All patients underwent monthly evaluation by abdominal US; liver enzyme levels, lipid profiles, insulin levels, and anthropometric parameters were monitored, and all patients underwent nutritional follow-up evaluation. Twenty-two patients underwent a second liver biopsy examination at the end of the study. RESULTS: Fifty-two patients were recruited and 44 (mean age, 47.7 y; mean body mass index, 33) completed the study. Serum glucose and insulin levels (P<.03) were significantly higher in the orlistat group, which also presented a higher degree of fibrosis. Body mass index was reduced significantly in each group, with a nonsignificant difference between the groups. Serum alanine transaminase (ALT) levels decreased significantly in both groups, with an almost 2-fold reduction in the orlistat group (48% vs 26.4%). There was a statistically significant reversal of fatty liver by US only in the orlistat group (P<.05). CONCLUSIONS: Orlistat improves serum ALT levels and steatosis on US in NAFLD patients, beyond its effect on weight reduction.


Asunto(s)
Fármacos Antiobesidad/uso terapéutico , Hígado Graso/tratamiento farmacológico , Hígado Graso/patología , Lactonas/uso terapéutico , Adolescente , Adulto , Anciano , Biopsia con Aguja , Índice de Masa Corporal , Relación Dosis-Respuesta a Droga , Método Doble Ciego , Esquema de Medicación , Femenino , Estudios de Seguimiento , Humanos , Inmunohistoquímica , Pruebas de Función Hepática , Masculino , Persona de Mediana Edad , Orlistat , Probabilidad , Valores de Referencia , Medición de Riesgo , Índice de Severidad de la Enfermedad , Resultado del Tratamiento , Ultrasonografía Doppler , Pérdida de Peso/efectos de los fármacos
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