Biomedical subjects

J Caballero Alcántara

Publications and source records attributed to J Caballero Alcántara.

18 recordsLinked to original sources

PubMed2004

[Changes in frequency of external office visits for diseases. Analysis of trends in 6 years].

INTRODUCTION: In 1996 we made a rate frequency analysis of attended pathologies in extern office. Along these years, we have made different actuations about some pathologies like HBP and vasectomy. OBJECTIVES: To know the results of these measures after 6 years, in 2002. MATERIAL AND METHODS: Different pathologies frequency is analyzed in extern office of Urology in 2002 and the results are compared with those we got before making the remake of the action about the mentioned cases. RESULTS: The remake in the treatment of the vasectomy and HBP let us to have a 15% and 1.2% more of first visits in extern office respectively. While the first visits because of suspicion of prostatic cancer has been increased in 25%. Visits because of pathologies like hematuria, renal colic, cystitis and impotency have been increased importantly (56.4%, 51.9%, 61.1% and 17.8%). CONCLUSIONS: The remake of actions on pathologies is a efficacious tool in the management of an Urology Area. Its analysis let us to value the benefits we have got and to detect new problems that appear.

Humans↗

PubMed2001

[Crude rate increase of prostate cancer incidence in our setting].

UNLABELLED: The prostate cancer is one of the most frequent cancers in the male sex and its incidence is increasing progresively in a population that every time has a more increased age. OBJECTIVE: To know the crude rate of prostate cancer in our population and if there is an increase. MATERIAL AND METHODS: Knowing the number of habitants under our assistance, we analyze the cases diagnosed of prostate cancer. RESULTS: The crude rate of the incidence of prostate cancer in our medium is 28.7 cases/100.000 habitants/year and this increases progressively in 3 cases/100.000 habitants/year. CONCLUSIONS: There is an increase of the crude rate of the incidence of prostate cancer probably by the influence of the increase of the population's age and the generalization of the measure of PSA in simtomatic patients of prostatic disease.

Age Distribution↗

PubMed1999

[Local anesthesia in meatoplasty with pediculated flap, an efficient technique in the treatment of meatal stenosis].

Meatal stricture is not an uncommon condition in the clinical practice, the classical treatment being meatotomy. The failure of the technique and the changes in the quality of the urinary stream have forced us to perform a meatoplasty procedure with pedicle flap from penial skin as described by Jordan, using intravenous local anaesthetics, thus avoiding hospitalization and reducing the overall cost of the procedure. From a total of 23 patients who (between May 1995 and April 1998) required surgery due to meatal stricture, 11 patients underwent meatoplasty and the rest meatotomy. None of the patients in the former group developed re-stenosis, and achieved a mean improvement of Q max in the flowmetry performed three months after the procedure of 23 mL/sg. vs the 10.5 mL/sg. of patients undergoing meatotomy. This difference is statistically significant at p = 0.02. Cost saving when surgery is conducted in the day hospital is 122,302 pts/procedure vs 215,182 pts/procedure if the patient had to remain in hospital for 3 or 7 days. Compared to the lower cost of meatotomy (39,308 pts/proc.) or meatoplasty (57,525 pts/proc.), it must be emphasised that the management of complications in the first case is 6,816 pts/patient vs 1,724 pts/patient required for cures in the case of Jordan's technique. It was concluded that pedicle flap meatoplasty is an efficient and definitive technique in the treatment of meatal stricture.

Aged↗

PubMed1999

[Economic impact of complications after transurethral resection of the prostate on its cost throughout the process].

INTRODUCTION: Considering that BPH is a highly common condition in the urological practice, that demographic changes further emphasise this feature and that the analysis of costs, funding and health care management are becoming increasingly under scrutiny, it is important to know the cost per procedure of the most commonly used therapeutical approaches and the impact of the complications on such cost. OBJECTIVES: 1. To know the cost per procedure of prostate TUR as PBH treatment. 2. To know the percentage of complications involved and the way in which they impinge on cost. MATERIAL AND METHOD: Considering all data gathered from the annual surgical activity in our service with regard to this procedure and the percentage of complications after studying 105 cases over an evolution period of 6 to 50 months, the Planning and Management control Unit at the H.C.S. reported on the expenditure generated by this activity. RESULTS: The cost per procedure in prostate TUR due to BPH in our environment is 191.030 pesetas at 1997 value. Morbidity affects 23% patients. Diagnosis and treatment of complications increases the overall cost by 7% thus reaching 205.096 pesetas. CONCLUSIONS: The knowledge of the above results provides important data on the expenditure generated by the activity of our Service for funding and management purposes. It also allows us to perceive therapeutical results as a measure of quality control, and to redefine those actions that will allow us to improve our results.

Costs and Cost Analysis↗

PubMed1998

[Protocol for coordination with primary care: a new working system in urology. Validation].

BACKGROUND: The Urology Unit at the Costa del Sol Hospital works in coordination with the primary health care network using diagnostic and therapeutic protocols. OBJECTIVES: To know whether the system is effective based on the analysis of the quality of patient referral to Hospital according to the performance of family doctors. MATERIAL AND METHOD: The referral document summarising the study conducted by the family doctor is analyzed. 578 correspond to conditions already coordinated and 269 to other situations not yet covered by the system. RESULTS: For the coordinated conditions, 29% referrals are high quality and 45.9% are poor. For non-coordinated conditions however, 9.2% are high quality and 57.7% poor. The difference is statistically significant (p < 0.001). CONCLUSIONS: Work in coordination with primary health care is feasible, effective and probably cost-efficient.

Hospital Units↗

PubMed1998

[Rate of external consultation utilization. Organizational and managerial basis of a urology service].

INTRODUCTION: The frequency of visits to an outpatients office is indicative of the proportion of population to be served at that location. MATERIAL AND METHOD: Analysis of the frequency of new cases to an outpatients office over one year and correlation with the conditions treated over the corresponding period. OBJECTIVES: To know the overall frequency of new cases, by condition, affected organ and group of diseases. To know the percentage of surgical resolution of those conditions. To infer from these data the resources necessary in terms of offices, operating theatres and staff RESULTS: The outpatients office shows an overall frequency of new cases of 124/10000 people/year. The highest frequencies by condition, affected organ and group of diseases correspond to BPH, inguinoscrotal area and andrology. 35% of all new cases are managed surgically. 17.5% BPHs and 16.4% prostate carcinomas undergo surgery. The necessary resource are inferred to be: 1.5 ambulatory operating theatres/week, 2-2.5 central operating theatres/week. 5-6 office visits/week and 3 urologists. CONCLUSIONS: The study on the frequency of visits to the outpatients office is a useful tool for the organization and management of the Urology Service.

Ambulatory Care↗

PubMed1998

[Ureteral metastasis of renal parenchyma tumor].

Metastatic involvement of the ureter due to renal parenchyma neoplasia has been reported in a total of 53 cases in the literature, the described mechanisms for tumoral spread being: haematogenic, lymphatic, canalicular and direct. Time to appearance of metastasis is far from prompting agreement among the authors in terms of its synchronous or metachronous nature. The most frequently reported symptoms are total and painless haematuria, and obstructive uropathy: CAT, percutaneous nephrostomy (for locally advanced disease) and endoscopy, are the most frequently used diagnostic tools. The only available therapy is nephrouretectomy for a diagnosis synchronous with the primitive tumour, and uretectomy for metachronous emergence. This paper reports on a case of sarcomatoid renal tumour with ipsilateral synchronous involvement of the ureter, which caused an obstructive uropathy treated by nephrouretectomy.

Humans↗

PubMed1998

[Shared care in BPH. First national experience].

The high prevalence of Benign Prostate Hyperplasia and the increased demand for care of this condition, should compel us to plan for shared care models in parallel to Primary Care, in the way it has happened with entities such as HBP and Diabetes. The set of measurements to be adopted when sharing services with primary care is known as "shared care". This paper presents the first national experience of "shared care" with primary care in BPH. The project has consisted in a series of steps to increase awareness, train and make available for family physicians, a clinical practice guide defining the criteria for initial evaluation, medical treatment and referral of patients to Urology surgeries, including with the referral document the appropriate diagnostic tests. A Quality Commission has been created to study the level of compliance of the documentation used for referral to the specialist and the clinical histories of patients treated in primary care. The results obtained are significant and most studies carried out fulfill the requirements in 60% cases, which has allowed to reduce overcrowding in the Urology outpatient offices (4200 surgery visits saved/year in our environment), has provided easy access of patients to adequate diagnosis and treatment, as well as significant financial savings (30 million pesetas/year). In short "shared care" is a reality in our environment that allows a more effective, fast medical assistance and improved access to specialist care by reducing the demand of specialized surgery hours.

Case Management↗

PubMed1997

[Molluscum contagiosum in immunodepressed patient].

Molluscum contagiosum is a skin lesion caused by a poxviridae virus. Infection in children takes place through cutaneous contact while in adults results from sexual contact or under immunosuppression conditions. In immunosuppressed patients this infection is caused by opportunistic microorganisms and, basically, its appears when CD4 levels reach a certain decline, therefore its presence can be considered as a marker for poor prognosis or advanced stage of the disease.

AIDS-Related Opportunistic Infections↗

PubMed1997

[An analysis of the prognostic factors in renal-cell carcinoma].

OBJECTIVES: The study proposes the analysis of the influence of gross, microscopical and clinical pathoanatomical prognostic factors in the survival of patients with RCC through univariance and multivariance statistical analysis, and its global evaluation as a predictive model. PATIENTS AND METHOD: The study involved 218 RCC cases operated on over 20 years, with a mean follow-up of 60 months. RESULTS AND CONCLUSIONS: All prognostic factors studied have a significant influence on the survival. When studied jointly, they include separately and in order of significance the metastatic involvement, mitotic index, cava vein involvement, nuclear grade and sarcomatoid histologic pattern. Also, we confirm that considered jointly they conform a valid predictive model.

Carcinoma, Renal Cell↗

PubMed1997

[Renal-cell carcinoma and polycystic disease in an adult].

Polycystic disease of the adult is the most common presentation of renal cystic disease and is transmitted by dominant autosomic heredity. Development of renal cell carcinoma has been reported within this cystic disease, but the frequency of such coincidence is not higher than in the remaining population. Most of these tumours are found incidentally and may involve a diagnostic problem due to the marked distortion of the kidney's architecture produced by the polycystic disease of the adult.

Aged↗

PubMed1997

[Short hospital stay in the treatment of benign prostatic hyperplasia using transurethral resection].

INTRODUCTION: Prostate TUR is the most common approach used in the surgical management of BPH. The highest expenditure portion of this treatment occurs during the post-operative. PATIENTS AND METHOD: 42 cases of prostate TUR were analyzed by GRD type, prostate weight, hospital stay and complications in the peri- and post-operative periods. Both the approach used and the degree of patient's satisfaction are analyzed. RESULTS: Mean prostate weight is 46 g (range 23-69). 45% cases involve GRD 336 and 55% GRD 337. Mean hospital stay for the procedure was 2.5 days. 2.3% of the series developed long-lasting temperature, 2.3% required transfusion and 2.3% a second intervention. Around 81% patients are satisfied with the results. CONCLUSIONS: It is possible to reduce costs by reducing hospital stay without impairing care quality and patient satisfaction.

Adult↗

PubMed1997

[Primary transitional cell carcinoma of the prostate. An infrequent tumor].

Primary prostatic carcinoma accounts for 2% to 4.5% of all neoplasias to this organ, and it has been observed in 2.8% of all radical cystoprostatectomies performed in the Mayo clinic. It originates in the poorly differentiated reservoir cells of the prostatic periurethral ductus which explains why diagnosis is most often obtained in advanced stages (stromal involvement), thus limiting its management to radical surgery. This paper contributes one case report of a patient diagnosed by transrectal biopsy of a primary prostatic transitional carcinoma presenting with incoercible rectorrahges and urinary obstruction symptoms. Treatment was through pelvic exenteration, and urinary and gut by-pass.

Biopsy↗

PubMed1993

[Abdominal paragangliomas. The experience of the Hospital 12 de Octubre].

This is a revision of our experience between 1975 and 1992 over a total of 35 patients who underwent surgery in 40 occasions for pheochromocytoma. If we dismiss one case of pheochromocytoma with early metastatic malignant presentation and which was not removed, a total of 6 patients with abdominal paraganglioma (17%) have undergone surgery in 10 occasions. Three of them (50%) were multiple and recurrent, an one (16%) become malignant after multiple recurrences. Average age was 34.6 years with balanced sex distribution. No patient had neurofibromatosis, Von Hippel Lindau disease, MEN syndromes or Carney's triad and only one case, which corresponded to the malignant pheochromocytoma, showed direct familial background. All patients were hypertensive. Four cases (66%) presented with catecholamine crisis, one case was an incidentaloma that at the 24-hour monitoring presented hypertensive crisis during the sleep, and the last one was diagnosed while investigating a case of sustained HTA in a young female. All patients had high urinary catecholamine excretion. To establish location of the tumour MIBG scanning (90% sensitivity) was used in first place followed by guided CT (80% sensitivity) since both techniques have a good correlation in order to design the surgical approach. Angiography was reserved for cases where the other two techniques were inconclusive or when it was necessary to obtain a better profile of the surgical anatomy. A total of 15 paraganglioma were removed, the most frequent location being renal parahilar (26%) followed by preaortic in Zuckerkandl's organ (20%) and vesical (20%). The most relevant intraoperative complications were HTA crisis related to anaesthetics manoeuvres and tumoral handling (90%), and hypotension following tumour exercises (10%). During the postoperative period, three patients required blood transfusion and one of them had to be re-intervened for bleeding caused by unnoticed damage to the right renal vein. Currently, three patients (50%) are disease free, one with residual mild HTA controlled with diuretics. Two patients (33%) are awaiting for re-intervention due to recurrence (one with multiple extra-abdominal recurrence) after one and two prior interventions respectively. The last one (16%) is the malignant pheochromocytoma, operated four times for recurrence which currently shows lung metastasis with adequate drug control of clinical manifestations, after polychemotherapy failure and 27-months follow-up since metastasis has been detected. Revision of existing literature and discussion of issues related to signs and symptoms, diagnosis, surgical preparation and approach, as well as prognostic implications related to paraganglioma as compared with adrenal-located pheochromocytoma.

Abdominal Neoplasms↗

PubMed1993

[Intradiverticular bladder tumors].

Retrospective study conducted on 58 patients with vesical diverticulum seen in our unit between 1975 and 1992, of which a total of 11 (18.9%) patients had vesical tumours. Of these, 6 (10.3%) were intradiverticular and 5 (8.6%) extradiverticular. Sixty-six percent of patients with intradiverticular tumours also had prior or concurrent history of extradiverticular vesical tumours. The most frequent clinical presentation was gross haematuria. The abdomino-pelvic CT is the most sensitive morphological examination although in 33% cases it resulted in overstaging. Curative treatment was only possible in the 4 patients with urothelial tumours, in whom 3 partial cystectomies with pelvian lymphadenectomy (2 pT1 G2 and 1 pT3 G3) and 1 TUR (T1 G2) were performed. The 2 (33%) remaining patients had advanced locoregional epidermoid carcinoma (T4 N+). All patients with urothelial carcinoma are alive with follow-up ranging between 6 months for the one infiltrant case and 136 months for a surface tumour undergoing partial cystectomy. Prognosis for both epidermoid carcinoma was ominous with mean survival time of 9 months. Review of the literature and discussion of epidemiological, clinical, diagnostic, therapeutic and prognostic issues.

Aged↗

PubMed1993

[Incidental renal adenocarcinoma: study on 54 cases].

Between 1974 and 1992, both inclusive, 204 renal adenocarcinomas were treated in the Urology Unit of the '12 de Octubre' Hospital, of which 54 (26.4%) were diagnosed by chance. The relative frequency of these renal tumours has experienced a highly significant progressive increase, from 0 in the 1974-1978 interval, to 13.04% in 1978-1980, 14.7% between 1981-1983, 20.68% in 1984-1986, 37.84% in 1987-1990, to reach over the last three-year period of 1990-1992 the remarkable figure of 41.93%. There has been no differences regarding incidence by sex (50% males and 50% females). Mean age at presentation is 61.5 years, ranging from 23 to 78 years. The suspected pathological cause most frequently leading to carry out the study where renal carcinoma is accidentally diagnosed are gastrointestinal disorders (50% of cases). The most frequently used imaging diagnostic technique is ultrasound (50% cases), emphasising the gradual increase in the number of cases diagnosed by ultrasound or CAT during the course of the study. Carcinomas accidentally diagnosed by CAT are those with less volume in our series. Regarding tumour characteristics, it should be pointed out a higher occurrence in the right kidney (64.8%) and a most frequent location in the upper renal pole (48%). Mean tumoral volume was 126 cc, although that value has gradually dropped, so that now the mean volume of accidental tumours treated over the last 5 is being 91 cc. Most cases present low staging at the time of diagnosis, 81% being pT2 N0 M0. Current overall survival is 89% of all cases followed-up.

Adenocarcinoma↗

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↗

PubMed1992

[Clinico-pathologic study of renal cell carcinoma].

Renal cell carcinoma (RCC) is an uncommon tumour with high mortality mainly due to late diagnosis. The various morphological variables and the clinico-pathological stage, however, induce highly different evolutions. Awareness of these characteristics would be a significant part of deciding the most appropriate therapy for each case. The pathological anatomy of 130 renal cell carcinomas obtained through nephrectomy was reviewed. A follow-up of at least 5 years was done in 121 patients. Also, a survival study related to the various clinical and pathological parameters was carried out. A significantly lower survival rate was observed for solid tumours with spindle or giant cells and nuclear degrees superior to 2, over 10 mitosis in 10 fields and staging higher than II. A significant correlation was also found between number of mitosis and staging, presence of metastatic disease, survival interval, degree of tumoral necrosis, histological type, cell type and nuclear grade. Our results indicate that staging, histological type, cell type, microscopic vascular infiltration, nuclear grade and number of mitosis can be highly predictive of the evolution and prognosis of RCC patients.

Adolescent↗