The Experts below are selected from a list of 135 Experts worldwide ranked by ideXlab platform
Corinne Doumit - One of the best experts on this subject based on the ideXlab platform.
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hepatic portal venous gas physiopathology etiology prognosis and treatment
World Journal of Gastroenterology, 2009Co-Authors: Bassam Abboud, Jad El Hachem, Thierry Yazbeck, Corinne DoumitAbstract:Hepatic portal venous gas (HPVG), an ominous Radiologic Sign, is associated in some cases with a severe underlying abdominal disease requiring urgent operative intervention. HPVG has been reported with increasing frequency in medical literature and usually accompanies severe or lethal conditions. The diagnosis of HPVG is usually made by plain abdominal radiography, sonography, color Doppler flow imaging or computed tomography (CT) scan. Currently, the increased use of CT scan and ultrasound in the inpatient setting allows early and highly sensitive detection of such severe illnesses and also the recognition of an increasing number of benign and non-life threatening causes of HPVG. HPVG is not by itself a surgical indication and the treatment depends mainly on the underlying disease. The prognosis is related to the pathology itself and is not influenced by the presence of HPVG. Based on a review of the literature, we discuss in this paper the pathophysiology, risk factors, radiographic findings, management, and prognosis of pathologies associated with HPVG.
Bassam Abboud - One of the best experts on this subject based on the ideXlab platform.
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hepatic portal venous gas physiopathology etiology prognosis and treatment
World Journal of Gastroenterology, 2009Co-Authors: Bassam Abboud, Jad El Hachem, Thierry Yazbeck, Corinne DoumitAbstract:Hepatic portal venous gas (HPVG), an ominous Radiologic Sign, is associated in some cases with a severe underlying abdominal disease requiring urgent operative intervention. HPVG has been reported with increasing frequency in medical literature and usually accompanies severe or lethal conditions. The diagnosis of HPVG is usually made by plain abdominal radiography, sonography, color Doppler flow imaging or computed tomography (CT) scan. Currently, the increased use of CT scan and ultrasound in the inpatient setting allows early and highly sensitive detection of such severe illnesses and also the recognition of an increasing number of benign and non-life threatening causes of HPVG. HPVG is not by itself a surgical indication and the treatment depends mainly on the underlying disease. The prognosis is related to the pathology itself and is not influenced by the presence of HPVG. Based on a review of the literature, we discuss in this paper the pathophysiology, risk factors, radiographic findings, management, and prognosis of pathologies associated with HPVG.
Amit Gupta - One of the best experts on this subject based on the ideXlab platform.
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Dancing sternal wires: A Radiologic Sign of sternal dehiscence
Cleveland Clinic journal of medicine, 2019Co-Authors: Mohamed M. Gad, Amit GuptaAbstract:A 52-year-old man underwent coronary artery bypass grafting, which was complicated by cardiac tamponade requiring repeat sternotomy with mediastinal washout ([Figure 1][1]). On postoperative day 4, plain imaging revealed a midline sternal lucency and a slight leftward deviation of the second-from-
Judith M Sondheimer - One of the best experts on this subject based on the ideXlab platform.
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pneumatosis intestinalis in non neonatal pediatric patients
Pediatrics, 2001Co-Authors: Amethyst C Kurbegov, Judith M SondheimerAbstract:Objectives. To describe fully pneumatosis intestinalis (PI) in non-neonatal pediatric patients and to characterize those patients with higher risk of poor outcome, including need for surgery and death. Methods. A retrospective chart review was conducted of all patients 30 days of age and older with PI in a tertiary care children9s hospital during an 8-year period. Underlying medical condition, presenting Signs and symptoms, Radiologic grade of pneumatosis, and events that immediately preceded the onset of PI were reviewed, and their correlation with outcome was assessed. Results. Thirty-seven episodes of PI occurred in 32 patients. Seventy-eight percent of patients were male, and the median age was 29 months. Major patient diagnostic groups identified with PI included healthy children (22%), patients with organ and bone marrow transplant (22%), patients with decompensated congenital heart disease (12.5%), motility disorders (12.5%), gastroschisis (9%), and short bowel syndrome (6%). The most common events that immediately preceded the onset of PI were noninfectious colitis (32%), acute enteric infection or toxin (27%), bowel ischemia (20%), and gastrointestinal dysmotility (17%). Resolution of PI with medical management occurred in 78% of episodes (good outcome). Twenty-two percent of episodes resulted in a poor outcome: patient death (8%) or surgery (14%). The presence of portal venous gas and low mean serum bicarbonate concentration were the only clinical factors that correlated Significantly with poor outcome. Only 25% of patients with pneumoperitoneum required surgery. Poor outcome was seen most commonly in 2 patient diagnostic groups: transplant patients (43% of patients) and decompensated cardiac disease (50% of patients). The event that preceded PI also had an impact on outcome. PI preceded by ischemia or graft versus host disease colitis was associated with poor outcome in 50% and 75% of cases, respectively. Conclusions. PI is a Radiologic Sign that occurs in a variety of settings in non-neonates. PI preceded by bowel ischemia or graft versus host disease colitis has the worst prognosis, and the presence of portal venous gas and acidosis correlate with poor outcome. Not all patients with pneumoperitoneum require surgical intervention. Overall, outcome of PI in non-neonatal patients was better than that reported in neonates with necrotizing enterocolitis.pneumatosis intestinalis, necrotizing enterocolitis, non-neonatal.
Carl M. Sandler - One of the best experts on this subject based on the ideXlab platform.
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Significance of Upper Urinary Tract Urothelial Thickening and Filling Defect Seen on MDCT Urography in Patients With a History of Urothelial Neoplasms
American Journal of Roentgenology, 2010Co-Authors: Alan D. Xu, Chaan S. Ng, Ashish M. Kamat, H. Barton Grossman, Colin P. Dinney, Carl M. SandlerAbstract:OBJECTIVE. The purpose of this article is to assess the ability of CT urography to depict urothelial tumors in the upper renal collecting systems, compared with ureteroscopy and pathologic analysis, and to describe the relative implication of the Radiologic Signs of urothelial thickening and endoluminal filling defects.MATERIALS AND METHODS. We conducted a retrospective study to evaluate 326 consecutive CT urography examinations (using the split-bolus technique) performed at our institution between February 2006 and May 2009 in 188 patients (145 men and 43 women; median age, 65.5 years; range, 32.4–90.2 years) undergoing surveillance because of a history of urothelial tumor. Initial CT urography reports from multiple board-certified body imaging radiologists were reviewed for upper tract lesions and were classified by Radiologic Sign (filling defect or urothelial wall thickening) and lesion location (pelvicalyceal or ureteral) by one of the authors. The reference standard for comparison was pathologic ana...