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Biomedical subjects

E de Bree

Publications and source records attributed to E de Bree.

33 records · Page 2Linked to original sources

Objective assessment of the contribution of each diagnostic test and of the ordering sequence in jaundice caused by pancreatobiliary carcinoma.

BACKGROUND: Computer-assisted diagnostic systems are not substantially more accurate than the clinician in the differential diagnosis of jaundice but may help in optimal selection and sequencing of tests. The present study aimed to assess with an electronic diagnostic tool the pattern of ordering tests and the diagnostic contribution and related financial cost of each test in jaundiced patients with pancreatobiliary carcinoma, in an effort to make the clinician's diagnostic behaviour more efficient and economical. METHODS: Clinical and diagnostic test data were prospectively gathered from 356 jaundiced patients with pancreatobiliary carcinoma and entered in a Bayesian diagnostic programme. The test results were added to the existing diagnostic evidence, and the programme calculated the diagnostic contribution of each test. RESULTS: A total of 1804 diagnostic tests were ordered. Quantitative assessment of the diagnostic contribution of each test showed that percutaneous transhepatic cholangiography and computed tomography were associated with the highest provision of information. The most cost-effective tests were ultrasonography and liver function tests. CONCLUSIONS: It is possible to determine objectively the diagnostic contribution of each test in establishing the diagnosis of pancreatobiliary carcinoma. The observed physician behaviour in ordering the various diagnostic tests might be improved with regard to its efficacy and its cost-effectiveness profile.

Bayes Theorem↗

Peritoneal expansion by artificially produced ascites during perfusion chemotherapy.

HYPOTHESIS: In cases of peritoneal carcinomatosis, continuous hyperthermic peritoneal perfusion chemotherapy (CHPPC) accomplishes homogeneous distribution of the drug and heat to the entire peritoneal cavity and exposure of the visceral and parietal surfaces to the perfusate. A new closed technique for expansion that produces artificial ascites is safer for medical personnel because of less heat and drug loss and more efficacious in its hemodynamic effect on the patient. DESIGN: Prospective study. SETTING: University hospital. PATIENTS: Twenty-one patients with peritoneal carcinomatosis. INTERVENTIONS: We performed 23 continuous hyperthermic peritoneal perfusion chemotherapy (CHPPC) procedures with peritoneal cavity expansion to an intra-abdominal pressure up to 26 mm Hg, using artificially produced ascites with 4 to 9 L normal saline solution. MAIN OUTCOME MEASURES: Intraoperative and postoperative complications and hemodynamic changes during CHPPC. RESULTS: No intraoperative complications were recorded. The artificially produced ascites did not cause significant hemodynamic changes. During the immediate postoperative period, 1 patient died of intra-abdominal hemorrhage and leakage of a colorectal anastomosis, resulting in a mortality rate of 4% in our series. Minor complications were seen in 14 patients. The complications were not attributable to the expansion technique. CONCLUSIONS: Our proposed modification of closed-circuit CHPPC appears to be well tolerated and safe in patients with a high tumor load, as well as for the theater personnel. It remains to be investigated whether the theoretical advantages of the proposed technique will also lead to better long-term results.

Ascites↗

Cysts of the adrenal gland: diagnosis and management.

OBJECTIVE: Cysts of the adrenal gland are rare, but with the wider application of sonography and computed tomography more adrenal cysts are detected incidentally. To gain more insight into this entity, five such cases are reported and their diagnostic approach and management are discussed. PATIENTS AND METHODS: The records of five patients with six cysts of the adrenal glands seen at our department from 1987 till 1995 are reviewed. There were four males and one female and their age ranged from 24 to 72 years, with a mean age of 43 years. One patient had a primary hydatid cyst of the right adrenal gland, which was preoperatively thought to arise from the liver or the right kidney. A second patient had a very large pseudocyst of the left adrenal gland, which is the largest ever reported in the literature. The other four cysts in three patients were found incidentally during sonography or computed tomography. RESULTS: The hydatid cyst with a rim of normal adrenal tissue was excised. The large pseudocyst was removed together with the adrenal gland. In the cases of the incidentally found cysts, observation of the patient with regular follow-up was decided upon. All patients are in good condition and without symptoms 2 to 10 years after the initial diagnosis. CONCLUSIONS: Adrenal cysts are rare and their diagnosis may pose problems. Symptomatic adrenal cysts should be operated, but small, asymptomatic, non-functional cysts with benign characteristics may be treated conservatively with regular follow-up by sonography or computed tomography and hormonal evaluation.

Adrenal Gland Diseases↗

Primary hydatid cyst of the adrenal gland.

An extremely rare case of primary hydatid cyst of the adrenal gland is reported. Adrenal hydatid cysts are usually a manifestation of generalized echinococcosis. Only nine primary cases have so far been reported in the literature. The presentation is insidious. Correct preoperative diagnosis is difficult. Clinical and investigative findings are non-specific and ambiguous. Surgery is the treatment of choice.

Adrenal Gland Diseases↗

The clinical significance of acquired jejunoileal diverticula.

OBJECTIVE: Because of the relative rarity of acquired jejunoileal diverticulosis, including its symptomatology and complications, diagnosis is often difficult and delayed, resulting in unnecessary morbidity and mortality. The purpose of the present study was to draw attention to jejunoileal diverticula and their complications as a site of gastrointestinal symptoms. METHODS: The records of 10 patients with symptomatic jejunoileal diverticula treated in our departments were reviewed. RESULTS: The clinical presentation was varying and nonspecific. Jejunoileal diverticula were diagnosed peroperatively in four patients operated on successfully for their acute complications. In one case the diagnosis was considered after a radiotargeted erythrocyte bleeding scan and in five other cases enteroclysis for chronic abdominal complaints demonstrated jejunoileal diverticula. The death of one patient operated on for massive hemorrhage from jejunal diverticula was probably related to delayed diagnosis and treatment. CONCLUSIONS: Jejunoileal diverticula should not always be dismissed as asymptomatic findings, as they may be the cause of vague, chronic symptomatology and acute complications, including intestinal obstruction, hemorrhage, and perforation. Awareness of the fact that jejunoileal diverticula may cause chronic nonspecific abdominal symptoms and serious acute complications may lead to earlier diagnosis and timely treatment with lower morbidity and mortality.

Aged↗

Staple-line disruption following vertical banded gastroplasty.

BACKGROUND: The purpose of this study was to determine the frequency with which staple-line disruption occurs following vertical banded gastroplasty (VBG) in morbidly obese patients, to investigate the effect of this complication on weight loss, and to identify any clinical symptoms that might be associated with staple-line disruption. METHODS: From April of 1992 to June of 1994, 60 patients with morbid obesity underwent VBG. Double-contrast radiographic examination of the upper gastrointestinal tract was performed on all patients at 6, 12, 24, and 36 months postoperation to assess the integrity of the staple line. At these same times, the weight of each patient was measured, so that the patients found to have staple-line disruption could be compared to those without disruption in terms of weight loss. RESULTS: Over the duration of the study, staple-line disruption was found in 12 patients (20%). All of these patients demonstrated satisfactory weight loss. Between the group of patients with staple-line disruption versus the group without disruption, weight loss did not differ significantly at any time up to 3 years postoperation. In addition, in the patients with staple-line disruption, no clear symptomatology that might be associated with this complication was discovered. CONCLUSIONS: Our results lead to the conclusion that small disruptions in the staple line lack clinical importance and do not significantly affect weight loss for at least the first 3 postoperative years. Furthermore, staple-line disruption does not seem to be associated with any specific clinical symptoms. Follow-up of all patients via barium meal is the correct approach for discovering the exact incidence of this complication.

Adult↗

Splenic abscess: a diagnostic and therapeutic challenge.

The records of five patients treated in our department for splenic abscess are analysed and the literature is reviewed. Computed tomography revealed the correct diagnosis in all patients, while clinical presentation was often nonspecific. Spleen-preserving management was possible in two patients (40%). Outcome was uneventful for four patients. One patient with a splenic abscess caused by Mycobacterium tuberculosis and acquired immunodeficiency syndrome, died 4 months after splenectomy from sepsis. We discuss the clinical presentation of splenic abscess, its diagnostic approach, and treatment. Additionally, we studied whether spleen-preserving management is feasible or not.

AIDS-Related Opportunistic Infections↗

Primary intrahepatic biliary cystadenomatous tumors.

BACKGROUND: Biliary cystadenoma and cystadenocarcinoma are rare tumors. The clinical features of, and optimal surgical management for these lesions have not been defined clearly. In this report, we describe three cases of cystadenomatous tumors of the biliary tract: two of a cystadenoma and one of a cystadenocarcinoma. The differential diagnosis of the cystic tumors of the liver in countries with a high prevalence of liver hydatid disease is very important. METHODS: The authors report their institution's experience from 1988 to 1995 in treating two cystadenomas and one cystadenocarcinoma and review previously reported cases in the literature. RESULTS: Clinical presentation is usually mild and atypical. During operation, the mass was resected en bloc with a margin of normal liver tissue in the cases of cystadenomas and, in the case of cystadenocarcinoma, a left hepatectomy with drainage of the common bile duct was performed. The two patients with adenomas remain well at 1 and 7 years after operation and our patient with adenocarcinoma is free of disease 8 years later. CONCLUSIONS: The treatment of choice is radical excision of the mass, either with a wide margin of normal liver or by means of a typical lobectomy, depending on the size and location of the lesion. When the lesion can be removed completely, the prognosis is excellent.

Adult↗

Malignant melanoma of the penis.

A case of malignant melanoma of the penis is herein reported. Malignant melanoma of the penis is rare and accounts for a small percentage of malignant melanomas and of malignant penile lesions. The diagnosis is often delayed by the patient's reluctance to consult a physician and by the intrinsic difficulty in clinical diagnosis of such a rare neoplasm. The surgical treatment is not standardized and is shortly discussed. In general, prognosis is poor and most patients die within a few years due to distant metastasis.

Humans↗

Treatment of malignancy arising in pilonidal disease.

BACKGROUND: Malignant degeneration is a rare complication of pilonidal disease and is associated with a high recurrence rate and poor prognosis compared with regular nonmelanoma skin cancer. Treatment in our departments and in the international literature was evaluated. METHODS: We analyzed the data from three patients with malignant degeneration who were treated in our departments and an additional 56 patients who were found after an extensive literature search. RESULTS: A total of 47 males and 12 females, with a mean age of 52 years, were most frequently primarily treated with surgery. After a mean follow-up time of 28 months, 20% of all patients died with evidence of disease and an additional 10% died of unrelated causes. The overall recurrence rate was 39%, with a median time to recurrence of only 9 months. The local recurrence rate was lower when radiotherapy was added to surgical treatment alone (30% vs. 44%). Re-excision of local recurrence resulted in some long-term survivals. CONCLUSIONS: Early diagnosis and treatment may lead to improvement of the relative poor prognosis. Surgical treatment should be tailored according to the locoregional extent. The high recurrence rate after surgical treatment can be reduced by the addition of radiotherapy. Although repeat surgery for recurrent disease may involve extensive resection and morbidity, this may result in prolonged survival.

Adolescent↗

Pylorus-preserving pancreaticoduodenectomy with external pancreatic remnant drainage.

BACKGROUND: Pancreaticoduodenectomy is the mainstay of surgical treatment for various benign and malignant diseases of the head of the pancreas and the periampullar region. The incidence of postoperative morbidity remains significantly high. Various modifications have been advocated for the restoration of the digestive continuity and drainage of bile and pancreatic ducts in order to diminish this high morbidity rate. METHODS: A new modification with the combination of an end-to-end duodenojejunal anastomosis and creation of an external pancreatic fistula following pylorus-preserving pancreaticoduodenectomy is described. Our initial experience with this modification in seven patients is reported and its advantages are discussed. RESULTS: There was no mortality, while morbidity was 29%, including postoperative pneumonia and psychosis in one patient, and intra-abdominal abscess in another patient. No significantly delayed gastric emptying was observed and no patient developed diabetes, anastomotic ulcer or reflux cholangitis postoperatively. CONCLUSIONS: The reported technique seems to be a safe modification of restoration after pancreaticoduodenectomy, with maintenance of anatomical gastrointestinal continuity, avoidance of complications from anastomosis with the pancreatic remnant, as well as maintenance of endocrine pancreatic function. However, long-term follow-up and larger comparative studies are needed to evaluate the impact of this modification on morbidity and mortality, including long-term nutritional complications.

Adenocarcinoma↗

Acute intestinal obstruction caused by endometriosis mimicking sigmoid carcinoma.

Endometriosis is a relatively frequent disease in fertile women. The intestine is involved in 12-37% of cases. Intestinal endometriosis is usually asymptomatic and complete obstruction of the bowel lumen occurs in less than 1% of cases. We report a case of endometriosis of the sigmoid, which caused complete intestinal obstruction and mimicked carcinoma of the sigmoid colon. This case demonstrates the difficulty of establishing an accurate pre- and peroperative diagnosis and the propensity of intestinal endometriosis to mimic colon cancer.

Biopsy↗

Intramural haematoma of the duodenum: a rare cause of duodenal obstruction.

Intramural haematoma is a rare cause of duodenal obstruction. Its most common cause is abdominal trauma. Diagnostic difficulty arises if the patient or the child's parents fail to mention the episode of trauma, regarding it as an unrelated or insignificant event, as in the presented case. Computed tomography is the imaging modality of choice. Intramural duodenal haematoma is best treated conservatively, since operative treatment is associated with a high complication rate and longer hospitalization.

Adolescent↗