Percutaneous management of persistently immature cholecystostomy tracts.
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Aged↗
Biomedical subjects
D Picus
Publications and source records attributed to D Picus.
Fragmentation of biliary calculi in 71 patients by use of intracorporeal electrohydraulic lithotripsy.
PURPOSE: Failure of percutaneous or endoscopic removal of biliary calculi is often associated with impacted stones or stones larger than 1.5 cm. In these difficult cases, intracorporeal electrohydraulic lithotripsy (EHL) is a method that allows large stones to be fragmented and removed percutaneously or endoscopically. In this study, the authors expand their experience with EHL and further evaluate the safety and efficacy of this technique to remove biliary tract calculi. PATIENTS AND METHODS: Intracorporeal electrohydraulic lithotripsy was used to treat 71 patients with calculi in the bile ducts (n = 35) or gallbladder (n = 36). Access was obtained by means of a surgical T-tube tract (n = 16), percutaneous transhepatic biliary drainage (n = 14), percutaneous cholecystostomy (n = 36), an intraoperative approach during common duct exploration (n = 2), and at endoscopic retrograde cholangiopancreatography (n = 3). RESULTS: EHL lithotripsy was effective in fragmenting all biliary stones in 69 of the 71 patients (97%). All of the stone fragments were removed in 67 of these 69 patients (94%). Major complications, including bile peritonitis and gallbladder necrosis, occurred in five patients; however, all major complications were related to the initial percutaneous drainage or tract dilation. No significant complications were directly attributable to the EHL procedure. CONCLUSION: Intracorporeal EHL is a safe and effective method that can be used to improve the success of percutaneous and endoscopic biliary calculi removal.
Adult↗
Interventional radiologic placement of Hohn central venous catheters: results and complications in 100 consecutive patients.
PURPOSE: Hohn catheters are single- or double-lumen catheters used for intermediate-length central venous access. The authors report their technique, results, and long-term follow-up in a prospective study of their first 100 consecutive patients. PATIENTS AND METHODS: Indications for Hohn subclavian catheter placement included chemotherapy in 53%, antibiotic therapy in 30%, and total parenteral nutrition in 8%. Patients' ages ranged from 21 to 82 years, and 80% of catheters were placed in inpatients. Hohn catheters were placed with fluoroscopic and/or ultrasound guidance. Patients were followed up for the duration of the study or until their catheters were removed. RESULTS: The technical success rate for catheter placement was 100%. No major procedural complications occurred. Duration of catheter placement varied between 5 and 276 days (mean, 70 days). The catheter infection rate was 8%, which corresponds to 1.1 infections per 1,000 catheter days. Catheter thrombosis occurred in nine cases (9%) and was successfully treated with urokinase in six of these nine. Subclavian vein thrombosis occurred in 3% of patients. CONCLUSION: Technical success, complication, and long-term patency rates for the Hohn catheter are comparable to or better than those in most surgical series involving tunneled external catheters. The Hohn catheter is an excellent alternative for intermediate-length central venous access. Hohn subclavian catheter placement has become a standard part of the authors' interventional radiology service and is easily adaptable to all interventional practices.
Adult↗
Gastrostomy button placement through percutaneous gastrostomy tracts created with fluoroscopic guidance: experience in 27 children.
PURPOSE: The authors report their experience with skin level (button) gastrostomy placement through radiologically created gastrostomy tracts. PATIENTS AND METHODS: Fifty-two gastrostomy buttons have been placed in 27 children (average age, 73 months; range, 9-235 months). All buttons were placed through tracts created during earlier fluoroscopically guided percutaneous gastrostomy. Fifteen Bard mushroom-type buttons and 12 MIC-Key balloon-type buttons were initially placed. Patients have been followed up for an average of 13.4 months. RESULTS: Button placement was successful at the initial attempt in 25 of 27 patients (93%). Tract age at button placement averaged 18.5 weeks. The average tract length measured 3.5 cm (1.7-6.0 cm). Tract rupture and peritoneal leakage occurred in three patients; one patient had the button immediately repositioned without sequela, and the remaining two patients underwent replacement of the gastrostomy tube into the stomach and successful button placement approximately 1 week later. There were no major complications. Minor problems (leak, granulation tissue, valve malfunction, balloon breakage) occurred in 19 patients. CONCLUSION: Button gastrostomy is a useful alternative to the traditional gastrostomy tube for the pediatric population. Conversion with use of existing radiologically created tracts is possible and safe. Attention to tract integrity and proper button position is required to avoid complications.
Adolescent↗
Accuracy of DSA in the evaluation of patency of infrapopliteal vessels.
PURPOSE: To evaluate the accuracy of intraarterial digital subtraction angiography (DSA) in the demonstration of patent infrapopliteal vessels. PATIENTS AND METHODS: One-hundred sixty-five arteriograms were obtained in 153 consecutive patients prospectively enrolled to evaluate lower extremity ischemia. In 86 cases a follow-up angiogram of the infrapopliteal vessels was obtained during surgery or after endovascular intervention (n = 57). Twenty-nine arteriograms were followed by surgical exploration of the infrapopliteal vessels. Standard angiographic technique was performed with intraarterial DSA of the most symptomatic foot. Visualization of distal vessels was compared with intraoperative or postintervention imaging or with the results of surgical exploration. RESULTS: Of the 57 procedures after which either intraoperative or post-endovascular intervention angiography was performed, DSA results were equivalent in 47 (82%) and worse in five (9%). When individual vessels were evaluated, the sensitivity of DSA in the identification of patent named vessels was 95%, and the specificity was 92%. Among 29 cases with a surgical standard of reference, 28 patients underwent bypass to a vessel correctly identified as patent at DSA; one patient was incorrectly identified as having no patent named vessels. CONCLUSION: Intraarterial DSA is accurate and reliable in the assessment of patency in infrapopliteal vessels before surgery or endovascular intervention in patients with infrainguinal atherosclerotic disease.
Adult↗
Prospective anatomic study of the inferior vena cava and renal veins: comparison of selective renal venography with cavography and relevance in filter placement.
PURPOSE: To compare the sensitivity of selective renal venography with that of cavography in the detection of variant anatomic structures of the renal vein that may affect the placement of inferior vena caval (IVC) filters and to define IVC dimensions. PATIENTS AND METHODS: Flush cavography, selective bilateral renal venography, and bilateral iliac venography were performed in 108 patients referred for IVC filter placement or vena cavography. Infrarenal IVC length and width were determined with a sizing catheter during cavography. Anomalies were considered significant if they altered placement or selection of the vena cava filter or if they represented a potential collateral pathway for clot to bypass a filter. RESULTS: Variant anatomic structures in the renal vein were found in 11% of patients with cavography and in 37% of patients with selective renal vein injection. Detected anomalies included circumaortic veins (n = 11), multiple veins (n = 25), retroaortic veins (n = 2), and a partially duplicated IVC (n = 1). Selective venography depicted anomalies not suspected at standard cavography in 28 cases (26%); in 20 cases (18% of population) they were significant. The average infrarenal width was 20 mm on the anteroposterior view and was 17 mm on the lateral projection. CONCLUSION: IVC anomalies are common, and selective renal venography can depict significant anomalies in renal vein anatomic structures not shown at standard cavography.
Adult↗
Percutaneous ablation of a pancreatic remnant with intraductal injection of neoprene.
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Chronic Disease↗
Our first supplement.
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Periodicals as Topic↗
Anaerobic culture yield in interventional radiologic drainage procedures.
PURPOSE: This study was designed to determine the yield of anaerobic cultures from percutaneous radiologic drainage procedures. PATIENTS AND METHODS: Anaerobic culture results in 317 patients from June 1992 to May 1994 were retrospectively examined. Anaerobic specimens were placed in specially designed anaerobic culture tubes and not blood culture media. Patients had undergone the following procedures: percutaneous nephrostomy (105 patients), biliary drainage (65 patients), and abdominal abscess drainage (147 patients). Aerobic culture results were tabulated in those patients with positive anaerobic cultures. RESULTS: Overall, 10% of patients (n = 32) had positive anaerobic cultures (Bacteroides species, n = 25; Clostridium, n = 6; other organisms, n = 4). Anaerobes were isolated in 13% (n = 19) of abdominal abscess drainages, 8% (n = 8) of nephrostomy drainages, and 8% (n = 5) of biliary drainages. Aerobic isolates were present in 78% (n = 25) of patients with anaerobic infection. CONCLUSION: The yield for anaerobic cultures varies for different types of percutaneous drainage procedures from 8% to 13%. When isolated, anaerobic bacteria are frequently mixed with aerobic bacteria. Anaerobic culture usage is recommended with abdominal abscess and biliary drainages. Anaerobic bacterial cultures are not recommended for percutaneous nephrostomy unless the patient has a urinary tract malignancy or has undergone urinary instrumentation.
Abdominal Abscess↗
Percutaneous biliary endoscopy.
The development of small-diameter flexible endoscopes has expanded the role of biliary endoscopy to include percutaneous interventions. Percutaneous biliary endoscopy is a technique that is easily learned. The equipment for percutaneous biliary endoscopy is readily available since most hospitals have an appropriate-sized choledochoscope and light source for intraoperative use. Therefore, the initial capital costs associated with flexible biliary endoscopy are minimal. Percutaneous biliary endoscopy in the interventional radiology suite is an ideal arrangement to facilitate a wide variety of biliary diagnostic and interventional procedures.
Biliary Tract Diseases↗
Nonsurgical management of gastric or duodenal perforation from a Wills-Oglesby-type gastrostomy tube.
PURPOSE: To describe the clinical and radiologic appearance of gastrointestinal perforation related to a Wills-Oglesby-type gastrostomy tube, as well as techniques for nonsurgical management. MATERIALS AND METHODS: Five patients with a previously placed 14-F modified Wills-Oglesby-type gastrostomy catheter experienced viscus perforation by the distal limb of the catheter during a 30-month period. RESULTS: The average interval between tube placement and perforation event was 4.3 months. Three patients had migration of the gastrostomy tube into the duodenum and subsequent duodenal perforation. One patient had posterior perforation of the stomach, and one patient developed a gastrocolic fistula. Generalized peritonitis was not present in any patient. All patients were treated successfully without surgery, and tube feedings were re-established in 4-14 days. CONCLUSIONS: Gastrostomy tube-related perforation is an uncommon, delayed complication of percutaneous gastrostomy with the modified Wills-Oglesby-type catheter. Nonsurgical management is feasible in select instances. Because of these gastrointestinal perforations, the gastrostomy tube has been modified (eliminating the distal tip), and no gastrostomy-associated gastrointestinal perforation has been experienced since.
Adolescent↗
Interventional radiologic placement of chest wall ports: results and complications in 161 consecutive placements.
PURPOSE: To review the technical results and long-term follow-up of the first 157 consecutive patients undergoing placement of 161 chest wall ports at the authors' institution. PATIENTS AND METHODS: All ports were placed in the interventional radiology suite with use of fluoroscopic and/or ultrasound guidance with a combination of standard interventional radiology and surgical techniques. The hospital records of all patients were reviewed, and telephone contact made when possible. Patients ranged in age from 21 to 87 years (average, 57 years). The most common indication for port placement was chemotherapy (88%). RESULTS: Placement was technically successful in all 161 procedures. Minor procedural complications occurred in eight patients (5%). There were no major complications related to the procedure. Cumulative follow-up to date includes 35,992 port-days (average, 226 days per patient). The long-term complication rate was 8.7% or .39 per 1,000 access days, which includes nine infections and five migration-related complications. CONCLUSION: Interventional radiologic placement of chest wall ports is safe and has a high technical success rate, in large part due to the integration of interventional radiology techniques to the procedure. The short and long-term complication rates are equal to or less than those of current surgical series.
Adult↗
Stent-graft failure in a patient with a connective tissue disorder.
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Adult↗