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Biomedical subjects

J Schüller

Publications and source records attributed to J Schüller.

At least 73 records · Page 4Linked to original sources
PubMed1985

Fine-needle antegrade pyelography of transplanted kidneys.

Ureteral obstruction or perforation must be considered as a cause of poorly functioning renal transplants. Sonography and radionuclide scanning will demonstrate outflow obstruction and/or pararenal fluid collection, but do not usually provide sufficient information on the site of the lesion. In these cases we have successfully used fine-needle puncture of the renal pelvis under sonographic guidance, and antegrade pyelography. This technique shows excellent anatomical details of the renal pelvis and ureter.

Graft Rejection↗
PubMed1984

[Ultrasound-guided percutaneous one-step nephrostomy].

The percutaneous nephrostomy-set described is a two-piece desposable set for temporary or permanent urine drainage. Under combined sonographic and radiologic control the thin but stabilised puncture needle, used alone, offers the advantage of permitting definitive establishment of the fistula in a fast and safe manner without changing of the guide instrument and without any troublesome bouginage.

Humans↗
PubMed1984

[Antegrade fine needle pyelography of transplanted kidneys].

In a poorly functioning renal transplant ureteral obstruction or perforation must be considered as a cause. Sonography and radionuclide scanning may demonstrate outflow obstruction and/or pararenal fluid collection, but do not usually provide sufficient information on the site of the lesion. In these cases we have successfully used fine needle puncture of the renal pelvis under continuous sonographic guidance and antegrade pyelography. Successful puncture was always possible and exact details of the renal pelvis and ureter were provided after contrast injection. No complications were seen after fine needle puncture. Sonographic guidance is ideal in respect to practicability and cost effectiveness if compared to computed tomography scanning. The technique has proven to be simple and safe to perform. It provides a quick and valuable diagnosis and superior anatomical details for reconstructive surgery.

Diagnosis, Differential↗
PubMed1984

[Extracorporeal shock-wave lithotripsy--beginning of a restructuring in the treatment of urinary calculi?].

After 31/2 years experiences with extracorporeal shock wave lithotripsy (ESWL) 852 patients have been treated. Because of the significant expansion of indications for ESWL from 15 to 70% of unselected stone formers, a permanent decrease of surgical stone removal can be expected, when ESWL availability is more sufficient. This may cause a change in the urological routine management of stone disease.

Humans↗
PubMed1984

[Expansion of extracorporeal shock were lithotripsy by auxiliary methods].

With the introduction of the ESWL, this non-invasive form of treatment has proved itself to be an alternative to surgical renal stone therapy. The increasing application of auxiliary methods has results in a vast extention of the indications for ESWL-monotherapy. Therefore, presently, practically all patients with urolithiasis can be treated non-invasively, where previously, surgery had to be performed.

Combined Modality Therapy↗
PubMed1983

[Transrectal ultrasound tomography with an electronic line scanner].

Among the imaging techniques for the morphologic diagnosis of the prostate and seminal vesicles transrectal sonography has assumed a foremost position. With the aid of longitudinal sectional images of the prostate and seminal vesicles obtained by means of a newly developed transrectal linear scanner the typical sonic characteristics associated with morphologic alterations of these organs were well demonstrated in 58 patients. For clarifying sonographic findings suggestive of carcinomas this approach can be used for precisely guided transperineal and above all transrectal puncture. Sonographic imaging of the prostatic urethra has opened new aspects in the assessment of functional processes on the basis of morphologic changes.

Adult↗
PubMed1983

Staging of bladder tumors by transurethral ultrasound tomography.

The transurethral ultrasound tomography represents an important addition to the spectrum of diagnostic means for vesical tumors. On the basis of the comparisons between sonographic and histopathologic staging of 26 cystectomy specimens there was agreement in 20 cases. So far, limiting factors have proved to be the restricted penetration depth of the ultrasound probe used and the evaluation of the bladder outlet, which is possible to only a limited extent, even with retrograde transducers.

Female↗
PubMed1983

[Computer tomography evaluation of tumor-induced bladder wall changes].

25 patients in whom a carcinoma of the urinary bladder had been confirmed, were examined preoperatively by means of computerised tomography, and the local size of the tumour was determined. These findings were compared postoperatively with the histopathological staging. The degree of tumour spread was verified exclusively via cystectomy. CT does not yield very relevant data in respect of the therapeutically important differentiation of the low tumour stages. However, CT is very well suited in the diagnosis of tumours which have penetrated the bladder wall; however, diagnostic relevance in respect of organ infiltration can be definitely limited by the overlapping of other organs.

Carcinoma, Transitional Cell↗
PubMed1983

[Percutaneous nephrostomy as primary therapy of ureterovaginal fistula].

We report on our experience with 11 cases of ureterovaginal fistula primarily treated with percutaneous nephrostomy drainage. In 6 patients the fistula persisted and ureteral reimplantation with psoas hitch was performed. In 5 patients the ureterovaginal fistula closed during nephrostomy drainage. In 2 of these 5 cases a distal ureteral stricture developed and was in 1 case successfully treated by ureteral dilation under systemic corticosteroid treatment. In the second case of a ureteral stricture reimplantation was necessary. All 4 patients, that were managed without open surgery had IVP's more than a year after treatment with normal upper tracts. When ureteral reimplantation had to be performed this was an elective procedure with minimal risk and optimal preparation of the patient due to percutaneous nephrostomy drainage.

Female↗
PubMed1982

Intravesical ultrasound tomography in staging bladder carcinoma.

The staging of bladder carcinoma is most important for treatment and prognosis. Transurethral ultrasound scanning was done with a rotating 6 MHz. transducer interchangeable with the optic of a 24F cystoscope. Intravesical ultrasound tomography and computerized tomography were used to treat 28 patients with bladder carcinoma. The correlation between ultrasound and histopathological findings showed that local staging of bladder carcinoma is possible by transurethral scanning.

Humans↗
PubMed1981

[Diagnosis and follow-up of prostatic cancer using an enzyme immunoassay for prostate-specific acid phosphatase].

The clinical application of an enzyme-immunoassay for the determination of the prostate-specific acid phosphatase is reported. By this method 615 plasma probes of patients with prostata adenoma, prostatitis, prostatic cancer and other urological cancer were investigated. Whereas the enzyme-immunoassay showed good correlation with the follow-up of prostatic cancer especially when metastases grow on, the test is not yet sensitive enough to find out early prostatic cancer with reliable accuracy.

Acid Phosphatase↗