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W Van Steenbergen

Publications and source records attributed to W Van Steenbergen.

At least 37 records · Page 2Linked to original sources
PubMed1998

Is early enteral nutrition in acute pancreatitis dangerous? About 20 patients fed by an endoscopically placed nasogastrojejunal tube.

Bowel rest during treatment of acute pancreatitis deprives the gut of nutrients and affects its structure and function. Enteral feeding is usually performed late in the course of acute pancreatitis and therefore cannot prevent intestinal barrier dysfunction and possible bacterial translocation. To assess the effect of early enteral nutrition we performed a prospective study on 21 patients (11 males/10 females) presenting with severe acute pancreatitis (13 biliary, 6 alcoholic, and 2 miscellaneous). Severity was established by a mean Ranson score of 3.57. All but one patient could be fed through a double-lumen nasogastrojejunal tube within 60 h after admission. No significant complication of the technique was observed. We conclude that early jejunal feeding can be used safely in severe acute pancreatitis. Further comparative studies are necessary to demonstrate any superiority to total parenteral nutrition.

Acute Disease↗
PubMed1998

Nonalcoholic duct-destructive chronic pancreatitis: imaging findings.

OBJECTIVE: Nonalcoholic duct-destructive chronic pancreatitis is a new entity that should be distinguished from alcoholic chronic pancreatitis. The purpose of this study was to assess the imaging features of nonalcoholic duct-destructive chronic pancreatitis. CONCLUSION: Nonalcoholic duct-destructive chronic pancreatitis has characteristic CT and MR imaging features that include the presence of a focal or more diffuse mass causing either regular or irregular narrowing of the main pancreatic duct, the absence of parenchymal atrophy and significant ductal dilatation proximal to the site of stenosis, and the absence of extrapancreatic spread.

Adolescent↗
PubMed1998

Normal Vaterian sphincter complex: evaluation of morphology and contractility with dynamic single-shot MR cholangiopancreatography.

OBJECTIVE: The objective of this study was to assess the usefulness of dynamic single-shot MR cholangiopancreatography in the evaluation of the morphology and contractility of the normal Vaterian sphincter complex and to assess whether i.v. injection of glucagon can improve visualization. SUBJECTS AND METHODS: Sixty patients without signs of Vaterian sphincter complex dysfunction were studied. A fast single-shot MR imaging sequence was used to obtain 20 consecutive images of the Vaterian sphincter complex during successive episodes of breathholding. In patients of group A (n = 30), 10 images were obtained before and 10 after i.v. administration of a sphincter-relaxing agent (glucagon). In the patients of group B (n = 30), no glucagon was administered. The degree of visualization of the Vaterian sphincter complex was assessed. RESULTS: Overall, the morphology and contractility of the Vaterian sphincter complex was adequately assessed in 57 patients (95%). However, the number of repetitions required to obtain this result varied greatly (mean, seven; range, two to 18). Glucagon had no apparent effect on the visibility of the most distal portion of the common bile duct. CONCLUSION: Nonvisualization of the most distal portion of the common bile duct on MR cholangiopancreatography studies is a normal variant that can simulate disease. Obtaining serial breath-hold images using a single-shot technique is helpful to avoid diagnostic errors.

Adult↗
PubMed1998

Arterial bleeding after biliary drainage catheter placement: diagnosis and treatment.

A case of hepatic arterial haemorrhage after percutaneous biliary drainage catheter placement is presented. Temporary control of the haemorrhage was obtained by placement of a larger drainage catheter which tamponaded the bleeding artery. Hepatic angiography followed by transcatheter embolotherapy provided a definitive control of bleeding.

Aged↗
PubMed1997

Dual-phase helical CT of the liver: value of an early-phase acquisition in the differential diagnosis of noncystic focal lesions.

OBJECTIVE: Contrast-enhanced helical CT images of the liver are usually obtained during the portal vein phase (PVP), during which the parenchyma achieves peak enhancement. The purpose of this study was to determine whether the addition of arterial-phase (AP) scans would lead to improved characterization of focal lesions. MATERIALS AND METHODS: We reviewed the CT appearance of 102 focal lesions with a proven diagnosis. In the first part of the study, we assessed whether the addition of AP scans influenced the diagnostic performance of the three observers. In the second part of the study, we analyzed the morphologic appearance revealed on CT scans of the different types of lesions in the AP and PVP. RESULTS: The addition of AP scans led to a significant increase in the number of correct diagnoses: 71 lesions (70%) were correctly diagnosed with CT scans in both the AP and the PVP, compared with 54 lesions (53%) correctly diagnosed with CT scans in the PVP alone (p < .01). The largest difference was observed in the diagnosis of focal nodular hyperplasia (FNH) and adenoma (16/24 correct diagnoses instead of 6/24) (p < .005). Conversely, AP images did not significantly contribute to the diagnosis of hemangiomas and metastases. The following morphologic features were seen much more often on AP scans than on PVP scans and had a high positive predictive value (PPV): spoke-wheel pattern (FNH; PPV, 100%), central feeding vessel (FNH; PPV, 100%), and heterogeneous appearance with hyperdense components (hepatocellular carcinoma; PPV, 75%). CONCLUSION: Our data show that the radiologists' evaluation of CT scans in both the AP and the PVP improves the differentiation of hepatocellular carcinoma and FNH from other types of hepatic neoplasms.

Adenoma, Liver Cell↗
PubMed1996

Percutaneous transhepatic cholangioscopy for diagnosis and therapy of biliary diseases in older patients.

OBJECTIVE: To describe the use of percutaneous cholangioscopy in older patients with complex diagnostic and therapeutic bile duct disorders. DESIGN: Case series. SETTING: Tertiary care center. PATIENTS: Fourteen patients with a mean age of 74 (SD +/- 9) years (range, 60-91 years) underwent percutaneous cholangioscopy. Eleven of these patients presented with endoscopically irretrievable bile duct stones. These 11 patients represent 4.1% of a group of 342 patients (age > or = 60 years) with a mean age of 76 (SD +/- 9) years who were treated endoscopically because of common bile duct stones between January 1993 and January 1996. Three patients presented with obstructive jaundice resulting from a bile duct stricture. In these three patients, brushing cytology of the strictures had proved to be negative. INTERVENTION: After creation and dilatation of a percutaneous transhepatic tract, cholangioscopy was carried out with a flexible cholangioscope. All procedures were performed under mild sedation and analgesia. Stone disintegration was obtained by electrohydraulic lithotripsy, applied through the working channel of the cholangioscope. RESULTS: Complete stone disintegration and removal was obtained after one to three cholangioscopic sessions in all 11 patients with stones. A histological diagnosis of malignancy was obtained in the three patients with biliary strictures. CONCLUSIONS: Percutaneous cholangioscopy is a well tolerated and promising technique in our diagnostic and therapeutic strategy in older patients with complex biliary disorders not responsive to peroral endoscopic diagnosis or treatment.

Age Factors↗
PubMed1996

Assessment of variceal pressure by continuous non-invasive endoscopic registration: a placebo controlled evaluation of the effect of terlipressin and octreotide.

Octreotide has been proposed for the treatment of variceal bleeding. The effects on portal pressure, however, have been variable in published studies. As bleeding is more directly related to pressure in the varices, this study investigated the effect on variceal pressure of octreotide and terlipressin, a vasoactive drug with a well established effect. Variceal pressure was measured during four to eight minutes by a continuous non-invasive endoscopic registration method. Thirty patients in whom a stable variceal pressure recording had been obtained during at least one minute, were randomised to receive either 2 mg terlipressin, 50 micrograms octreotide or an identical volume of saline, as a single intravenous injection given over 60 seconds. For the final analysis three patients had to be excluded because of lack of a satisfactory recording. There were no significant clinical differences between the three groups of patients. Placebo administration did not induce significant changes, but a mean decrease in variceal pressure of -27% was noted with terlipressin, starting from two minutes onwards. Variceal pressure changes after injection of octreotide were variable and the mean change in pressure did not reach statistical significance. Seven of 10 patients showed a temporary increase in variceal pressure. In conclusion, terlipressin induces a significant and progressive decrease in variceal pressure but inconsistent variations of variceal pressure changes were seen after octreotide administration. This is probably related to its effect on central venous pressure. This study also shows that continuous variceal pressure recording with the non-invasive endoscopic registration technique detects in an accurate way the effect of vasoactive drugs on variceal pressure, because placebo injection did not produce significant changes.

Adult↗
PubMed1996

Combined treatment with methotrexate and ursodeoxycholic acid in non-cirrhotic primary biliary cirrhosis.

In the treatment of patients with primary biliary cirrhosis (PBC), methotrexate (MTX) and ursodeoxycholic acid (UDCA) have both been associated with clinical, biochemical, and histologic improvement. Studies with methotrexate have only been performed in uncontrolled conditions. We conducted a prospective controlled study on the combined treatment with methotrexate and ursodeoxycholic acid, comparing the clinical, biochemical, and histologic evolution in six untreated patients with that in eight patients treated with MTX 15 mg/week in association with UDCA 500 mg/day. All patients had noncirrhotic PBC and were followed up for two years. A significant decrease of alkaline phosphatase, glutamic pyruvic transaminase, and gamma-glutamyltranspeptidase was found in the methotrexate/ursodeoxycholic acid treated-group, as compared to the control group. The clinical and histologic evolution, however, was not significantly different in the two groups. Methotrexate toxicity consisted of interstitial pneumonitis in one, of a transient rise of transaminases at three months in five, and of a significant decrease of blood platelets and white blood cells after two years of treatment. In controlled conditions, a two-year treatment with methotrexate and ursodeoxycholic acid does not produce a significant clinical or histologic benefit. Based on this experience, and taking into account the possible risks associated with this therapy, the empiric use of methotrexate cannot be recommended in patients with non-cirrhotic PBC.

Adult↗
PubMed1996

[Acute and chronic pancreatitis in the elderly patient].

Normal pancreatic ageing is characterized by functional and morphological changes of the pancreatic parenchyma and of the ductal system, which, however, do not interfere with normal exocrine pancreatic function. It can be speculated that 'pancreatic lithiasis in the aged' as well as the 'senile idiopathic chronic pancreatitis', two conditions of chronic pancreatitis in the elderly, may represent more extreme forms of these normal age-related changes in pancreatic structure and function. In elderly people, acute and chronic pancreatitis are only rarely related to alcohol abuse, in contrast to the situation in a younger patient population. The presence of gallstones represents the most frequent cause of acute pancreatitis in the elderly. In most aged patients with acute biliary pancreatitis, endoscopic sphincterotomy is the treatment of choice, even when bile duct stones cannot clearly be demonstrated at ERCP. Endoscopic sphincterotomy has been shown to reduce morbidity as well as mortality rates in acute biliary pancreatitis. This technique can even be considered as treatment of choice in elderly patients with an increased operative risk. An elective laparoscopic cholecystectomy should be performed in elderly patients with an acceptable operative risk.

Acute Disease↗
PubMed1995

Reversible hypoprothrombinemia in a patient with primary biliary cirrhosis treated with rifampicin.

A patient with primary biliary cirrhosis (PBC) developed marked hypoprothrombinemia with decreased concentrations of the vitamin K-dependent coagulation factors VII, IX, and X during treatment with rifampicin. The coagulation abnormalities were easily corrected by administration of vitamin K. Different mechanisms may be involved, such as a decreased production of menaquinones by intestinal bacteria, a warfarin-like effect by inhibition of the vitamin K epoxide reductase, or an increased oxidative degradation of vitamin K as a result of hepatic microsomal enzyme stimulation. Whatever the mechanism involved, the appearance of this complication in a patient with PBC probably points to the importance of a pre-existing poor vitamin K status. Patients with PBC, treated with rifampicin, should have a regular monitoring of their vitamin K status. Adequate vitamin substitution should be administered, if necessary.

Female↗
PubMed1995

Embolization of bleeding gastroduodenal pseudoaneurysm in pancreatitis.

A case of successful wire coil embolization of a bleeding gastroduodenal pseudoaneurysm secondary to necrotizing pancreatitis with pseudocyst formation is reported. The embolization technique using multiple coils is discussed and compared with other techniques previously described.

Aneurysm↗
PubMed1995

Liver disturbances in obesity and diabetes mellitus.

Abnormal liver tests, right upper quadrant pain and hepatomegaly occurring in an obese or in a diabetic patient may point to the presence of fat or of glycogen accumulation in the liver parenchymal cells. Marked hepatomegaly due to cytoplasmic glycogen deposition is mainly found in poorly controlled insulin-dependent diabetic patients. If accompanied by cushingoid features, growth retardation and by delayed puberty, a diagnosis of Mauriac syndrome can be made. Hyperglycaemia, insulin administration and increased concentrations of the counterregulatory hormone cortisol may all play a role in the glycogen deposition by their concerted actions on the glycogen phosphorylase and synthase enzymes, promoting the accumulation of glycogen. Hypercortisolism may be responsible for growth retardation and delayed puberty in Mauriac patients. Regression of hepatomegaly and of the associated clinical characteristics may be obtained by a better metabolic control due to the administration of long-acting insulin and the change from single to twice daily injections. Fatty liver is rare in insulin-dependent diabetic patients and is indicative of a poor diabetic control. This process is quickly reversible by adequate insulin treatment. Steatosis is frequently found in maturity-onset diabetics and in obese patients. The pathogenetic mechanisms leading to the accumulation of triglycerides and of fatty acids in the hepatocytes can easily be understood from the normal cycling of fatty acids between the adiopose tissue and the liver. Histologic features of nonalcoholic steatohepatitis can also be found in obese and in diabetic patients. Steatohepatitis may rarely evolve into cirrhosis. In general, there is no correlation between the degree of the biochemical alterations and the severity of the histological findings.(ABSTRACT TRUNCATED AT 250 WORDS)

Diabetes Complications↗
PubMed1994

Clinical aspects of incomplete septal cirrhosis in comparison with macronodular cirrhosis.

BACKGROUND/AIMS: Incomplete septal cirrhosis (ISC) is a form of macronodular cirrhosis characterized by slender, incomplete septa that demarcate inconspicuous nodules. Its clinical features have not been investigated in a large series. The aims of this study were to review the clinical symptoms and evolution of ISC in 42 patients. METHODS: Forty-two patients with at least one liver biopsy strongly suggestive of ISC were selected for the study covering a period between 1968 and 1987. Data for these patients were compared with the evolution of 49 patients with classical macronodular cirrhosis after chronic active hepatitis type B or C. RESULTS: Possible etiological factors for ISC were alcohol abuse, arsenic treatment, and hepatitis B infection. In three cases, a genetic factor could not be excluded. Patients with ISC had significantly lower serum concentrations of transaminases and bilirubin at diagnosis. Compared with macronodular cirrhosis, bleeding varices were more frequent (57% vs. 22%) in ISC. Ten-year survivals in the ISC and the macronodular cirrhosis groups were 54% and 57%, respectively. CONCLUSIONS: ISC represents a relatively stable burnt-out form of macronodular cirrhosis with an unusually high incidence of variceal bleeding. This could be explained by a superimposed insufficiency of the portal vascular supply.

Adolescent↗
PubMed1994

Three cases of non-tumoural tight stenosis of the bifurcation of the hilar bile ducts.

Stenosis of the bifurcation of the hepatic bile duct is usually caused by malignant lesion. We report on three different causes of benign stenosis of the hepatic confluence with a similar radiological pattern on direct cholangiography. The first case is considered a spontaneous neuroma, the second a periductal abscess, and the third case a postoperative stricture Bismuth type 4.

Adult↗
PubMed1994

Imaging of polypoid endoluminal growing bile duct tumors.

We reviewed the radiological documents and protocols of 196 cases of bile duct tumors examined over a period of 12 years: 20 of them (10.2%) presented with a polypoid endoluminal growth. The aim of this study was to provide a better knowledge about the radiological features of this less frequent kind of tumor. In these 20 cases, the correct diagnosis of bile duct lesion was provided in 100% by E.R.C.P., P.T.C., U.S. as well as C.T., and in 42% by arteriography. The correct diagnosis of tumor was made by E.R.C.P. in 86%, by P.T.C. in 88%, by U.S. in 61%, by C.T. in 63%, and by arteriography in 25%. A correct diagnosis of tumor could be reached in all cases by combination of several examination techniques. The anatomopathological diagnosis was: bile duct adenocarcinoma (7 cases), adenocarcinoma of the ampulla of Vater (4), villous adenoma of Vater's ampulla (2), cystadenoma (1), cystadenocarcinoma (1), hepatocellular carcinoma (1), apudoma (1), and metastases (3).

Adenocarcinoma↗
PubMed1994

Percutaneous transhepatic cholangioscopy and electrohydraulic lithotripsy for bile duct stones.

Percutaneous transhepatic cholangioscopy in combination with intracorporeal electrohydraulic lithotripsy was successfully applied in 3 patients with biliary tract stones which could not be removed by endoscopic techniques. In a fourth patient, cholangioscopy was used as a diagnostic tool for the evaluation of a right hepatic duct stenosis above a hepatico-jejunostomy. The percutaneous transhepatic tract was dilated up to an 18-French size over a period of 1 week. Maturation of the tract was then awaited for another week before cholangioscopic procedures were started. The only complication noticed consisted of haemobilia that occurred in 1 patient after introduction of the initial percutaneous external-internal drainage catheter. Percutaneous cholangioscopy is a promising new technique in our diagnostic and therapeutic strategy in patients with complex biliary tract disorders.

Aged↗
PubMed1993

Inflammatory fibroid polyp of the ileum.

We report a patient who presented with recurrent right upper quadrant colics after a previous cholecystectomy. Radiological examination revealed the presence of a polypoid mass in the ileum caused by an anatomo-pathologically proven inflammatory fibroid polyp (IFP) in the ileum. Clinical and pathological aspects related to this rare benign lesion are discussed.

Female↗