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J Voltas

Publications and source records attributed to J Voltas.

53 records · Page 3Linked to original sources
PubMedDate not supplied

[Oxyphillic adenoma as a cause of primary hyperparathyroidism].

We describe three cases of women who developed symptoms of primary hyperparathyroidism originated by a parathyroid functional tumor. Ostoporosis, arterial hypertension and nefrolitiasis were the most frequent antecedents. The PTH and calcium levels in bood and urine were elevated. The CT and ultrasound confirmed the diagnosis of parathyroid tumor, which was identified histopathology as oxifilic adenoma. All patients underwent surgical treatment. We consider these cases of clinical interest because this kind of adenoma hardly ever produces hyperparathyroidism.

Adenoma↗
PubMedDate not supplied

[Esophagectomy for esophageal cancer excluding cardial involvement. Analysis of 40 cases].

This is a study of esophageal resection for cancer of the esophagus in 40 patients, 34 of which were diagnosed as squamous carcinoma and 6 as adenocarcinoma excluding the cardias, tumor localization includes cervical esophagus in one case and all the rest in the thoracic esophagus, 2 in the proximal third, 25 in the middle third and 12 in the distal third. With regard to surgical approach, 11 were treated with total esophagectomy (7 Akiyama, 4 transhiatal resection) and of the 29 treated, of subtotal esophagectomy, 24 were according to the Lewis technique and 5 through a left-sided thoracotomy. Reconstruction was done with stomach in 33 cases six with colon and one with jejunum. Complications were detected in 52.5% the patients with pleuro-pulmonary being the most frequent, anastomotic dehiscence occurred in 5 cases (4 of which were chose manually). The operative mortality rate was 5% and the actuarial survival at 5 years was at 28.4%.

Adenocarcinoma↗
PubMedDate not supplied

[Transplantation of free vascularized jejunum for esophageal reconstruction].

Two cases of pharyngo-esophageal carcinoma treated with tumor resection followed by insertion of a vascularized jejunal free graft using microsurgical technique in order to maintain esophageal contiguity are presented. Both cases have received pre-operative radiotherapy. This presentation is motivated by the excellent results obtained in this palliative treatment of said type of cancer. The jejunal transplant improves the quality of life of these patients with less morbidity and mortality compared with other methods of esophageal reconstruction.

Aged↗
PubMedDate not supplied

[Multidisciplinary protocol for the treatment of epidermoid carcinoma of the esophagus: experience from 1985 to 1989].

A phase II study activated in 1985 for the multidisciplinary treatment of squamous cell carcinoma of the esophagus is described. The treatment program included simultaneous neoadjuvant continuous infusion chemotherapy with cisplatinum and 5-fluorouracil, preoperative radiotherapy (46 Gy in 5 weeks) and delayed programmed surgery (or radical irradiation in selected cases). Twenty-one patients with tumor stages I (6), II (10), III (5) entered in the study and 20 patients completed the treatment program. Severe toxicity observed was: esophagitis 100%, bone marrow aplasia 30%, severe weight loss 52%. One patient developed a tracheo-esophageal fistula at the end of radiotherapy. Clinical objective tumor response rate was 85%. Pathologic complete tumor response rate was 47%. Median follow-up of the entire group is 11 months (range 2 + to 49 + months). Ten patients have been alive for more than 12 months; six are still alive without any evidence of disease (from 12 + to 49 + months). It is concluded that the protocol described is feasible, with treatment related severe but reversible toxicities, and able to induce a high rate of tumor response and long term survivors in patients with initial locally advanced tumor stages.

Adult↗
PubMedDate not supplied

[Treatment of cancer of the esophagus. New strategy with the multidisciplinary treatment].

This study is an update of the clinico-anatomical characteristics of esophageal cancer, as well as the different current therapeutic modalities, their indications and results. The therapeutic protocol for the study and treatment of epidermoid cancer of the esophages followed in the University Clinic of Navarra is likewise espounded.

Clinical Protocols↗
PubMedDate not supplied

Lymphocyte subpopulations in colo-rectal cancer. Preoperative evaluation.

The percentage and absolute numbers of T, T active and B cells determined by rosette and immunofluorescence procedures, together with the lymphocyte response to PHA stimulation, were studied in 50 patients with colo-rectal adenocarcinoma before surgery. In addition, a group of these patients were tested for the presence of circulating CEA. Sixty percent of the patients studied presented a decrease in absolute numbers of T cells. The percentage and absolute number of Ea rosettes were significantly reduced (p less than 0.01), showing a selective loss of the active T cell subpopulations. In 62% of the cases there was a notable decrease in the lymphocyte response to PHA stimulation. There were no significant variations in the B lymphocyte populations. CEA values showed a close correlation with the clinical tumour staging according to the Dukes classification. Pre-operative immunological testing may have prognostic value in tumours of the large intestine and its results can subsequently be used to evaluate the results of surgery and to indicate avenues which may improve and complete the treatment.

Adenocarcinoma↗
PubMedDate not supplied

Breast cancer and histocompatibility antigens.

HLA antigens and haplotypes were studied in 50 women with infiltrating ductal carcinoma of the breast, from the Basque provinces and Navarra, and in a comtrol group consisted of 166 healthy persons from the same geographical area. A greater incidence of HLA-B7 and B26 was observed in the breast cancer group if compared with the frequency of occurrence of these antigens in the Spanish population. However, when compared with Navarra-Basque population, no significant differences were observed. The study of the haplotype frequencies in breast cancer showed a greater incidence of the A9, B27 and A10, B14 haplotypes than in the normal population. However, the significance of D values disappeared after making the necessary correction for the number of antigens tested. The major histocompatibility system has a variety of functions which have not yet been documented but that might predispose to disease. It is certainly probable that there will be multiple mechanisms underlying HLA and cancer associations, however so far none of the data available suggest the presence of an immune response gene linked with breast cancer.

Adult↗