Publications by authors named "Johan S Lopera Valle"

The transjugular intrahepatic portosystemic shunt is a rising interventional procedure with multiple indications and high technical success but with risks of biliary injuries, an underreported scenario. We present an 11-year-old patient with biliary injury with a leak, biloma formation, and biliary obstruction caused by the percutaneous procedure. Interventional radiology drainages addressed these complications by resolving the leak and biloma.

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Objective The objective of the study was to evaluate the use of the hepatospecific contrast agent, gadoxetic acid, for MRI in patients at a high-complexity hospital in Medellin, Colombia, from 2016 to 2022. Materials and methods This was an observational, descriptive, and retrospective cross-sectional study involving patients who had undergone MRI with gadoxetic acid from February 2016 to January 2022. The MRI studies were interpreted by two radiologists specializing in body imaging, each with at least 10 years of experience.

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Acute idiopathic scrotal edema is a clinical entity predominant in children under 10 years whose true incidence is unknown in our setting. Diagnosis is challenging and avoids unnecessary surgeries. We present the case of an idiopathic acute scrotal edema with ultrasound findings highly suggestive of the diagnosis, which was managed conservatively with complete signs and symptoms resolution after discharge.

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This article presents a case of a multimorbid 63-year-old woman with chronic kidney disease and heparin-induced thrombocytopenia (HIT). Following the insertion of a central venous catheter, she developed phlegmasia cerulea dolens (PCD) in her left arm, a rare and severe complication of deep vein thrombosis (DVT). Given the severity of the case, adapting to anticoagulant contraindications or unavailability, management with catheter-directed thrombolysis and mechanical thrombectomy was made.

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Gastroepiploic artery aneurysms and pseudoaneurysms pose diagnostic challenges due to their rarity and overlapping radiological features. This case report presents an 82-year-old woman with sudden-onset severe abdominal pain with computed tomography revealing hemoperitoneum and saccular dilations adjacent to the stomach's greater curvature, suggestive of vascular pathology. Selective abdominal arteriography confirmed three saccular dilatations in the gastroepiploic artery, which were managed successfully with coil embolization.

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Objective: This study aimed to determine the diagnostic performance of contrasted magnetic resonance cholangiography for detecting bile duct lesions following cholecystectomy.

Materials And Methods: A retrospective case series study was conducted that included patients over 18 years of age with suspected bile duct injury after cholecystectomy, who underwent contrasted magnetic resonance cholangiography, and who also had endoscopic retrograde cholangiopancreatography, surgery, or subsequent clinical follow-up. The images were interpreted by two radiologists who assigned the type of lesion according to the Strasberg classification.

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Objective: This study aimed to evaluate the overall survival of hepatocellular carcinoma patients who qualify for transarterial chemoembolization (TACE) using the "six-and-twelve" prognostic score. The research was conducted on a patient cohort between 2009 and 2019.

Materials And Methods: A retrospective cohort study was conducted, involving patients diagnosed with unresectable hepatocarcinoma, BarcelonaClinic Liver Cancer (BCLC) staging A or B, and Child-Pugh staging A or B.

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Only 5% of pleural neoplasms are fibrous tumors of the pleura, which typically develop from sub-mesothelial mesenchymal tissue of the visceral pleura. These tumors often behave clinically benignly, and when they are larger than 15 cm or occupy more than 40% of the hemithorax, they are referred to as "giant" tumors. Surgical excision is the gold standard treatment, although intra-operative bleeding is one of the major complications.

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Colopericardial fistulae constitute a condition with a very low prevalence and a high morbidity and mortality rate. In this case report, we discuss an 80-year-old male patient who presented to emergency services for massive rectal bleeding and signs of hypovolemic shock. Abdominal arteriography and upper gastrointestinal endoscopy were negative for bleeding.

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Morbidity and mortality caused by tuberculosis are increased in most of the Latin-American indigenous communities. Factors that could explain this situation are poverty and limited health services access due to social conflicts and geographical isolation. We determined the frequency of tuberculosis in Colombian indigenous communities and described their knowledge related to transmission and control.

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