Search PubMed⌕ Search

Biomedical subjects

W Bautz

Publications and source records attributed to W Bautz.

At least 109 records · Page 6Linked to original sources
PubMed1994

[Sclerotherapy of the internal spermatic vein in varicocele. Significance of normal anatomical variants].

During a period of four years, 386 patients with left sided varicoceles were treated by sclerotherapy of the left internal spermatic vein. This was successful in 93.8%. The most common complication was perforation of the vein in 6.2%. Technical success and complications depended on anatomical variations. Of particular significance was Bähren type IVb (competent main vein, incompetent collaterals) which occurred in 18.9%. This accounted for 66.5% of all perforations and 54.2% of unsuccessful interventions. The recurrence rate was 3.8%.

Adolescent↗
PubMed1994

[Computerized tomography staging of carcinomas of the uterus].

In the staging of uterine carcinoma, CT is used for the assessment of uterus size and configuration, tumor infiltration into the pelvic soft tissues, involvement of the ureters with urine retention, and lymph node enlargement. Evaluation of parametrial infiltration, which is of utmost importance for therapeutic strategy, is less reliable. CT tends to over-stage parametrial infiltration and is thus inferior not only to MRI, but also to clinical examination if parametrial infiltration is excluded. Partial volume effects may obscure or mimic tumor invasion into the bladder or rectal wall and thus reduce CT accuracy. The value of CT for the staging of uterine carcinoma lies in the assessment of advanced stages of cervical carcinoma and lymph node involvement.

Endometrial Neoplasms↗
PubMed1994

[Pancreatic carcinoma--preoperative diagnosis and indications for surgery].

Symptomatic pancreas tumors are diagnosed in general by ERCP, transabdominal ultrasonography, and computed tomography. Endoscopic ultrasonography, angiography (facultative) and video laparoscopy in combination with laparoscopic sonography and peritoneal lavage are providing preoperatively important additional information about the spreading of the tumor. Preoperative diagnostic procedures should allow the surgeon to exclude patients with an unresectable tumor from extended resection. In most of these patients satisfactory palliation can be achieved endoscopically. The indication for surgical treatment of resectable pancreatic tumors is based on the mortality of pancreaticoduodenectomy far beyond 5% in experienced centers. Improved surgical techniques and improved perioperative management together with the implementation of accurate preoperative analysis of risk factors allow resection of primary pancreatic tumors with a low morbidity and mortality.

Chronic Disease↗
PubMed1993

[Pneumonia due to a rare atypical Mycobacterium in AIDS].

A 38-year-old man, HIV-positive for 6 years, developed fever and cough with deterioration in his general state. Chest radiography demonstrated an infiltration in the left upper lobe and computed tomography showed a septated cavity. Three bronchioalveolar lavages over 4 weeks recovered Klebsiella, Candida, Pseudomonas and Staphylococcus in the lavage fluid. Acid-fast rods were not found in any of the microscopic preparations. His clinical condition and the radiological findings deteriorated despite appropriate antibiotic administration. A further cavity occurred in the right upper lobe and the inflammatory infiltrations extended further. Although no acid-fast organism had been demonstrated, tuberculostatic treatment was begun (daily 300 mg isoniazid, 600 mg rifampicin, 900 mg streptomycin, 2 g pyrazinamide). His general condition and the radiological findings rapidly improved. Four weeks after culturing the lavage fluid atypical Mycobacterium xenopi was isolated. This case illustrates the difficulty of diagnosing an atypical mycobacterial infection. It takes time and effort, but it is of great importance because up to 50% of patients with AIDS contract such infection. Early and appropriate treatment will significantly improve quality of life and life expectancy.

AIDS-Related Opportunistic Infections↗
PubMed1993

[A comparison of color duplex sonography with selective penile DSA in assessing erectile dysfunction].

42 patients with suspected vasculogenic impotence were examined via colour duplex sonography. Penile vascular anatomy was mapped and peak velocity was determined in both cavernous arteries before and after intracorporeal injection of 15 mg papaverine and 0.5 mg regitine. In all patients the results could be compared with selective penile pharmacoangiography as the gold standard. In 34/42 patients colour Duplex sonography and angiography led to an identical evaluation of penile blood supply. 4 patients were classified false-negative and 4 patients false-positive. Sensitivity and specificity were calculated for each side separately. Sensitivity was 82.4% for left side angiogram and 83.3% for right side angiogram. Specificity was 88% for left side angiogram and 87.5% for right side angiogram. Peak flow velocity was significantly diminished in pathological angiograms.

Adult↗
PubMed1993

[CT arterioportography in the spiral technic for the demonstration of liver metastases].

CT arterioportography using indirect portal venous application of contrast media is the most sensitive preoperative diagnostic technique for detection of liver metastases. Spiral CT allows continuous examination of the liver (no gap) during a single breathhold. Due to short measurement times an optimized vessel and tissue contrast can be achieved during the portal venous phase. Compared with intraoperative ultrasonography CTAP using spiral CT offers similar sensitivity (96%) in the detection of liver metastases and thus emerges as an important technique for diagnosis and follow-up of liver metastases.

Aged↗
PubMed1993

[The value of computed tomography in the diagnosis of the local and lymph node recurrences of head and neck tumors].

544 CT studies of 231 patients were evaluated retrospectively to assess the role of CT in posttherapeutic monitoring of patients with head and neck tumours. CT (80%) was inferior to clinical evaluation (87%) in diagnosing recurrent malignancy due to a lack of specificity (76 vs. 92%). With CT small recurrencies were missed. Occasionally evaluation of the oral cavity was impaired by metal artifacts (dental fillings). However with larger recurrent tumours, CT offered important additional information regarding extent, infiltration of deeper compartments and bony destruction in 51% of the cases. CT (95%) was superior to clinical evaluation (80%) in diagnosing recurrent lymph node metastases. A baseline CT study at about 6-8 weeks after the end of therapy is of great importance for follow-up studies.

Combined Modality Therapy↗