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Biomedical subjects

L Steffens

Publications and source records attributed to L Steffens.

33 records · Page 2Linked to original sources
PubMed1977

Evaluation of the immunocompetance of patients with transitional cell carcinoma of the bladder.

The cellular immunocompetence was examined by means of the quantitative DNCB hypersensitivity reaction in 152 patients with transitional cell carcinomas of the bladder of Broders grades 1-4. Against a control group of 367 normal controls of both sexes, 85 patients with transitional cell carcinomas of grades 1 and 2 showed a normal DNCB reactivity, irrespective of the frequency of tumour recurrence. In 9 patients of this group, an increase of malignancy from grade 2 to grade 3 was observed; the simultaneous deterioration of immunocompetence, however, was not statistically significant. On the other hand, with transitional cell carcinomas of grades 3 and 4, significant impairment of immunocompetence correlating with the tumour stage was noted.

Adult↗
PubMed1977

[Urinary tract infection following prostatic surgery (author's transl)].

A comparative study was conducted on the severity and course of postoperative urinary infections in prostatic adenoma patients with preoperative bacteriuria and patients without infection. In both groups urinary infections showed a similar tendency to resolve, whereas a significant increase of polyresistant bacterial strains was noted in patients with preoperative bacteriuria. A comparison of 100 patients who had undergone transurethral resection and 100 patients who had undergone prostatectomy showed that severity and course of the postoperative urinary tract infection did not differ.

Aged↗
PubMed1977

[Immunoblastic sarcoma with clinically primary manifestation in the testis (author's transl)].

Three own observations of immunoblastic sarcomas with clinically primary manifestation in the testis are reported. In all cases an already generalized tumor stage was evident. In two patients a combined surgical, radiological, and chemotherapeutic treatment was performed with satisfactory success. The essential functional-morphological and clinical criteria of the immunoblastic sarcoma were summarized and discussed.

Aged↗
PubMed1977

Correlation between tumour stage, tumour grade, and immunocompetence in patients with carcinoma of the bladder and prostate.

The cellular immunocompetence was examined in 132 patients with transitional cell carcinoma of the bladder and 85 patients with carcinoma of the prostate with reference to the tumour stage and grade. In both groups a significant correlation between tumour stage and grade was found. These two parameters were also correlated with the reduction of immunocompetence. The results are discussed and compared with those in the literature.

Adenocarcinoma↗
PubMed1977

[Results of the Anderson-Hynes kidney/calix plasty in 102 ureteral efferent stenoses].

In 102 patients with ectasia of the renal calyx from degree I to III a pyelograft after Anderson-Hynes was performed. The leading clinical symptoms were, arranged according to frequency: flank pain, recurrent infections of the urinary tract, macrohaematurias, diffuse abdominal pain, palpable flank tumours. In general the diagnosis was made on the basis of the infusion urogramme; a retrograde pyelography was indicated only in cases of missing or insufficient excretion of the contrast remedy. According to the results of the operation apart from the Anderson-Hynes-graft in a lower pole vessel compressing the ureteral passage a ventral deposition of the anastomosis or resection of the lower pole vessel with or without simultaneous resection of the pole was performed. The results of the Anderson-Hynes pyelograft correlated with the degree of the preoperative ectasia of the renal calyx; with increasing degree of severity the good results decreased from 90% to 38%, whereas the bad results increased from 3% to 46%. Judging the success of the operation, a good correspondence between the clinical and radiological parameters was revealed in the degrees I and II. In degree III the numbers of cases were too slight, to secure a diverging tendency of these criteria.

Adolescent↗
PubMed1977

[Surgical removal of cast calculi using extensive longitudinal nephrotomy].

The results of the operative treatment of 21 large longitudinal nephrotomies on account of the existence of cast calculi of the renal calyx are reported and discussed. In complete cast calculi with participation of the whole renal pelvis and all renal calyces this operation method leads to satisfactory results. Of the 12 cases (57-1%) with ideal postoperative morphological findings 83-3% became bacteriologically sterile; according to our opinion the lesion of the parenchyma due to operation is to be accounted for. In stone formations which do not fill all the calyces and yet in many cases in literature are called cast calculi, a pyelotomy or resection of the renal pole may by all means be the therapy of choice.

Adult↗
PubMed1977

[Balloon ureter catheter for temporary endo-drainage (author's transl)].

A new balloon ureter catheter (catheter 7-French, balloon 9-French) is described. It offers important advantages over conventional catheters for temporary endo-drainage in the treatment of urinary obstruction as well as renal and ureteral fistulas. An angled whistle-tipped catheter facilitates placement. Sufficiently large drainage openings above and below the balloon and an additional outflow lumen prevent obstructions. The special catheter is held in an optimal position inside the balloon underneath the whistle tip. Thus, no further fixation is necessary, and the patients need not be confined to bed.

Drainage↗