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Biomedical subjects

L Calahorra Fernández

Publications and source records attributed to L Calahorra Fernández.

9 recordsLinked to original sources
PubMed2001

[Surgical procedures of the urinary tract and male genital organs. Rates of surgical intervention: variability and its relationship with distance and income].

OBJECTIVE: To valorate the existence of the variability, in surgical rates on urinary tract and masculine genital organs, between the population of Health Centres (HC) adscribed to the Hospital of Ciudad Real. It so, quantify the influence of the distance (from Health Center to Hospital) or the income have in the variability of these rates. MATERIAL AND METHOD: Surgical activity of the period 1996-98. It has been analyzed for every procedure: residence, sex, age and type (coded by CIE 9th MC). The surgical rates, standardized for age and sex, (TFQ) for every HC has been compared whit the mean (t alpha/2 n-1 alpha = 0.99) of the distribution of rates by HC. The relation between the TFQ and distance or income has been analyzed by lineal regression and ANOVA test for one variable, using the Newman Keuls test to assess the difference of the rates between the HC at different distance or income. It has been considered as significative every p < 0.05. RESULTS: The population studied has a TFQ significatively different (p < 0.01). significant relationship exists between the TFQ and the distance. There were no relations between the TFQ for HC and the income. CONCLUSIONS: 42% of the variance (variability) of the distribution of TFQ for HC is due to the distance.

Adolescent↗
PubMed2000

[Urodynamics rationale. The flow curve].

OBJECTIVE: To describe the mathematical representation of a common phenomenon: the urinary flow curve. METHODS: The statistical adjustment for minimum squares was the method employed in the study. RESULTS: A mathematical expression was obtained with a goodness of fit for each flow curve and an acceptable margin of error. CONCLUSIONS: The model which considers the flow curve as a parabola is not useful since this is an expression of a statistical phenomenon that varies from case to case. We utilized the minimum squares fit to obtain a regression curve that provides the nearest possible representation of urinary flow. Furthermore, we consider the flow curve to be the result of forces that develop in the detrusor, which produces the complex phenomenon of voiding. This study is the first step toward the development of a mathematical representation of the urinary flow mechanics.

Humans↗
PubMed1998

[Urethral catheters].

After a historical summary on the development of urethral catheters, this article analyzes various aspects about catheters. These aspects include: types of catheters and their recommended use, their counterindications, their classification, how to select the appropriate catheter, the information which a patient should be provided regarding the use of a catheter, the techniques and equipment necessary for their use, the most common problems encountered and how to solve them,...

Catheters, Indwelling↗
PubMed1997

[A giant bladder hernia. Apropos a case].

From a clinical point of view, vesical hernia is an uncommon condition. Occurrence is more frequent in male. In most cases diagnosis follows surgical repair of inguinal hernia, to which it may be associated (1-10% depending on the series). Unless complications arise, it evolves asymptomatically or reveals its presence by the distinctive two-stroke miction. Although infrequent, the most significant complications are incarcerations and strangulation with secondary necrosis of the vesical wall. Diagnosis is confirmed by radiological techniques: intravenous urography (IVU), retrograde cystography or computerised axial tomography (CAT). Treatment is always surgical. This paper presents one case of massive vesical hernia and a review of the relative literature.

Aged↗
PubMed1996

[Non-palpable prostatic cancer. Cure with adenomectomy?].

The currently growing importance of prostate cancer (PC) is given by the large increase in the number of cases diagnosed with this condition, to a great extent due to the diffusion of the most recent diagnostic techniques. Together with the traditional rectal examination, we have available today the PSA (prostate specific antigen) and the transrectal ultrasound, which allow to diagnose tumours undetectable with palpation. This paper presents the case of a male patient with high levels of PSA (in metastatic values), normal rectal examination and three series of negative prostate biopsies in spite of a high suspicion of PC, the diagnosis being confirmed after adenomectomy, with a subsequent PSA levels normalization, these levels remaining below 3 ng/ml after 22 months follow-up, which allows to think of a "recovery" (?) with just the removal of the prostate adenoma.

Humans↗
PubMed1993

[Tumors of the female urethra: presentation of cases and review of the literature].

Female urethra tumours are rare conditions and so the series presented in the literature gathers just a few cases, and therefore is difficult to reach a conclusion with regard to the definite treatment to be adopted in each case. It appears to be certain that even histologically malignant forms of this disease can be cured in the earlier stages. The most representative cases presented in our experience are analyzed and an overall review of the literature is made aiming to examine the experience of various authors with regard to the diagnosis and treatment of the injuries.

Adenocarcinoma↗
PubMedDate not supplied

[Tumor pathology in horseshoe kidney].

Within renal aberrations, the most frequent one is the horseshoe kidney. Adenocarcinoma is the most common primary renal neoplasia. The association of tumour and horseshoe kidney is uncommon, with only 135 cases described in the literature. Presentation of 4 patients with tumours in horseshoe kidney: 3 adenocarcinoma and one urothelial tumour of renal pelvis. As a result of our experience we consider that arteriography is a key imaging technique for pre-operative study of these patients, medial laparotomy being the choice access for approach, and prognosis depending on tumour staging, with no influence from the malformation.

Adenocarcinoma↗