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Biomedical subjects

L Perales

Publications and source records attributed to L Perales.

At least 19 recordsLinked to original sources
PubMed1988

Risk factors for developing voiding dysfunction after abdominoperineal resection for adenocarcinoma of the rectum.

Voiding dysfunction is a common sequel of abdominoperineal resection of the rectum. Twenty patients symptomatic after abdominoperineal resection, 14 with a preoperative normal urodynamic study and six with evidence of obstruction, were studied postoperatively. The importance of the following factors is analyzed: sex, stage, grade, size, distance of the tumor from the anal verge, metastatic lymph-node involvement, and extent of lymphadenectomy. Male gender, tumors situated between 4 and 8 cm from the anal verge, and lymphadenectomy that includes more than ten nodes may be considered risk factors for neurologic damage and postoperative voiding dysfunction.

Adenocarcinoma↗
PubMed1984

Bone lithiasis or bone metaplasia?

A case in which bone has been found in the upper urinary tract is reported. Since the physiopathology and morphological characteristics of this tissue do not meet the requirements needed to be defined as a urolith, we believe this is a case of bone metaplasia and not urinary lithiasis.

Adult↗
PubMedDate not supplied

[Infiltrating transitional carcinoma of the bladder (4). Our approach to stage pT2 and critique of other risk factors. Multifactorial analysis].

From the analysis of our experience with pT2 and pT3a tumours it could be deduced that the former have better prognosis. The papillary appearance, invasion in a wide front and extent, whether with good or moderate differentiation, in T2 are signs of good prognosis, as well as the non-existence of unilateral dilation or an effaced kidney. Considering the good evolution obtained with radical cystectomy only, these patients should be recruited for study in order to see whether evolution with bladder preservation is similar. Patients with pT2 tumours should not be included in protocols to evaluate the efficacy of adjuvant therapies used with surgery. The evolution is not equivalent to that expected in tumours of deeper invasion.

Antineoplastic Agents↗