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Biomedical subjects

F Arnáiz Esteban

Publications and source records attributed to F Arnáiz Esteban.

11 recordsLinked to original sources
PubMed1997

[Impact of Spanish-language urological publications in periodicals in the English language].

OBJECTIVE: A study was conducted to analyze the impact of the articles published by Spanish authors in the English language urological journals and those published in Spanish journals in the bibliography referenced in the English language urological literature. METHODS: We randomly analyzed volumes 147, 39 and 69 of the Journal of Urology, Urology and the British Journal of Urology, respectively. All articles in the foregoing volumes were reviewed and analyzed as follows: sections, country, no of references, no of Spanish publications referenced, no of references of Spanish publications and the number of Spanish references cited in these. RESULTS: 356 articles were published in the Journal of Urology: of these, 59% were by American and only 6 (1.68%) were by Spanish authors, which ranked 8th according to number. These 6 articles by Spanish authors cited 84 references; of these, only 3 were Spanish publications. Overall, there were 6,708 references (mean 18.8); 6 (0.11%) were articles published by Spanish authors. In Urology, 140 articles were published: of these, 75% were by American and only one (0.71%) by Spanish authors, which ranked 6th according to number. This article by Spanish authors cited 38 references; of these, only 3 were Spanish publications. Overall, there were 2,055 references (mean 14.6); only 8 (0.38%) were articles published by Spanish authors. In the British Journal of Urology, 177 articles were published: of these, 96 (54.2%) were by British authors and only one (0.56%) by Spanis authors, which ranked 9th according to number. This article by Spanish authors cited 11 references; none of them were Spanish publications. Overall, there were 1,988 references (mean 11.2); 14 (0.7%) were articles published by Spanish authors. CONCLUSION: Spanish authors are not worse off than those of other neighbouring countries in regard to the number of articles published (1.18%) in the three journals analyzed, where most of the articles were chiefly by American or British authors. Spanish publications have no impact in the English-speaking countries, although the number of Spanish publications has been slowly but steadily growing and currently account for 1.21% of the publications worldwide: 41.5% of these are referenced in the Science Citation Index and the Uro-Andrological publications rank 6th (4.2%). Moreover, when Spanish authors are able to publish articles in the English-language journals, they rarely reference Spanish publications. However, in proportion, these have more impact than the Spanish publications. The current trend in the prevalence of the English language in the scientific field is probably the cause of the nonexistent impact outside Spain, where they are hardly-read by the Spanish-speaking communities. The foregoing situation is further assisted by the fact that indexing is also done in the English language. Spanish authors are encouraged to increase the number of Spanish publications referenced, particularly those publishing articles in the foreign journals.

Bibliometrics↗
PubMed1992

[Integral urologic echography: retrograde sonourethrography].

Herein we describe a new technique for urethral exploration which replaces conventional radiological urethrography to a large extent. Retrograde sonourethrography is capable of providing data different from those of radiology, eliminates most of the inconveniences of the radiologic techniques and provides images of the entire trajectory of the urethra. Because this procedure can be repeated as often as necessary, it is the diagnostic procedure of choice in urethral stricture, a persistent and recurrent pathological condition. The results of a study conducted in 30 patients with different urethral pathologies are presented.

Humans↗
PubMed1992

[Bladder tumors: false recurrences].

The use of the new cytostatics for prophylactic therapy of superficial bladder tumor recurrence has been associated with fibrino-necrotic ulcers and eosinophilic cystitis. We underscore the problems in making the differential diagnosis which sometimes present with true tumor necrosis. We describe the characteristic features of both pathological conditions which permit these to be recognized before endoscopic maneuvers are performed. Their presenting features and course are analyzed.

Antineoplastic Agents↗
PubMed1992

[Echodensitometry: a new echographic diagnostic possibility].

The determination and quantification of grey levels in the echography scale, designated by some authors Echodensitometry, is viewed as a new method for diagnosis using ultrasound techniques. This paper advances the results from a study conducted with an echographer equipped with an echographic density measuring device. This model analyzes the number of pixels in the image showing the most frequent level of grey. Normal and pathological parenchymatous urological organs (kidney, prostate and testicle) have been examined. Normal organs show a gaussian distribution of grey with a predominant level of typical grey for each of them. When affected by an acute inflammatory process the organs maintain their gaussian distribution but the predominant grey is lower (darker) due to the edema and the hyperaemia. When the inflammatory process becomes chronic, distribution, although somewhat irregular, is still gaussian but with higher predominance of grey (lighter) probably due to the fibrosis. The tumoral cases of our study also showed a gaussian curve even more irregular and with levels of variable grey. When specific areas of the tumour are analyzed the findings are very distinct depending on whether the areas are hypo or hyperechoic. Hyperechoic areas produce highly irregular maps. Research should be directed to provide more complex, although easy to perform systems of analysis which can correlate adequately with the histological study. It would be desirable that the equipment would be standardized to allow analysis of 'in vitro' images. If and when these objectives can be accomplished we would be able to venture into an echography histological diagnosis, something nowadays yet impossible.

Densitometry↗
PubMed1991

[Paraneoplastic syndromes in urology].

The paraneoplastic syndromes in patients with malignant urological tumors are reviewed herein. Some general aspects of these syndromes are briefly described and discussed. Similarly, the different urological tumors in which paraneoplastic syndromes have been observed are briefly reviewed. These are very common in renal cancer and cancer of the prostate, uncommon in bladder cancer and rare in testicular cancer.

Female↗
PubMed1990

[Transrectal echography of the prostate: current evaluation].

Our results with transrectal ultrasonography of the prostate are updated herein. Since the specifically urologic ultrasound (Aloka SSD 520) equipped with a sectorial transrectal probe of 5 MHz, became available in our service in 1984, we have performed over 1,700 transrectal ultrasound procedures. From the outset, we established several lines of investigation whose partial results have been published over these past years. Our main interest has been and continues to be that of describing an unequivocal echo pattern that would define prostate cancer in any stage, particularly in its early stages. To date, no finding has proved to be pathognomonic. However, we believe that we have encountered some aspects that have been poorly described to date that allow us to determine the current role of transrectal US in the urologic setting. We support the concept of integral urologic ultrasonography, one that encompasses all of our activities. The present article is a synthesis of a major part of our investigative effort and includes our statistical data and current points of view. Our own experience has taught us that things may turn out to be different from what they initially appear to be. Thus, we cannot rule out that our views will not change in the future. We have therefore attempted not to be rigid with respect to our claims. We must add, however, that except for numerical changes and variations in the degree of significance of specific findings, no major modifications have had to be made during this period. We have divided the study into various parts. Each one reviews a specific pathology (cancer, prostatitis, adenoma...), some procedures (biopsy, puncture, sonometry), and a comparative study between classical and transrectal US (digital rectal examination and US). In all of the foregoing, we have presented our results and some considerations in the discussion. Finally, our current views regarding transrectal US are presented succinctly in the conclusions.

Diagnosis, Differential↗
PubMedDate not supplied

[Renal brucelloma. A rare possible diagnosis].

Presentation of one case of renal Brucelloma in a 61-year old patient. The emphasis is placed in the pathophysiology of the condition and the extraordinary rarity of its renal location. Also an explanation is proposed for the diagnostic methodology and the dissociation, typical in chronic brucellosis, of the different serologic testing. Finally, the increased incidence experimented by this condition in our environment, which involves the reappearance of clinical pictures today thought eradicated, is pointed out.

Brucellosis↗