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Biomedical subjects

D Solano

Publications and source records attributed to D Solano.

9 recordsLinked to original sources
PubMed1998

[Pulmonary epidermoid carcinoma in a 22-year-old patient with multiple cutaneous metastasis].

The authors present one clinical case of lung epidermoid carcinoma with several concurrent features which are uncommon in relation to this type of neoplasia. Consequently, the age of the patient (22), the lack of known risk factors, the histologic type (little differentiated squamous) and an aggressive biologic behaviour of the tumour, preceded of multiple cutaneous metastasis, are circumstances that make this clinical case exceptional. The more significative aspects present at lung carcinoma included in this age group respect to others are analyzed.

Adult↗
PubMed1996

[Peritoneal pseudomyxoma secondary to mucinous cystadenoma of the ovary].

We present a new case of pseudomyxoma peritonei secondary to a mucinous cystadenoma of the ovary, whose presenting symptoms were abdominal distension and bilateral hernias. This is an uncommon entity and diagnosis tends to be casual. Each day, ultrasonography and computed tomography are more useful in suspicion. Aggressive surgical debulking followed by intraperitoneal chemotherapy seem to be the better treatment, even though controversies persist.

Aged↗
PubMed1994

[Varicella pneumonia in the adult].

In the adult, the primary infection by the varicella-zoster virus acquires an unusual severity due to several complications, the most frequent of them being pneumonia. The authors analyze the clinical, epidemiological, serological and radiological data of the only two cases of varicellous pneumonia in the adult at a general hospital during the past 5 years. They highlight as the main characteristics: easiness of diagnosis, dissociation between clinical and radiological signs and the excellent therapeutical response to the early administration of intravenous Aciclovir. They comment as well the risk factors of this complication and the criteria for hospitalization.

Acyclovir↗
PubMed1993

[Protein-calorie malnutrition and degree of hepatic failure in chronic hepatopathy].

BACKGROUND: Malnutrition is often associated with chronic liver disease, particularly in alcoholics. Its objective assessment by means of methods which are useful and accessible to daily clinical practice is nowadays considered to be necessary for an adequate diagnosis and treatment of these problems, being also a necessary requirement in the selection of the candidates for a liver transplant. Besides, the still insufficiently known relation between nutritional status and the degree of liver dysfunction is of great interest, which has given rise to the present study. PATIENTS AND METHODS: The level of malnutrition and of hepatic function of 48 patients suffering from chronic liver disease hospitalized in Internal Medicine is evaluated, by means of the Ratio of Protein-Caloric Malnutrition proposed by Pomar et al and the Ratio obtained from Clinical and Laboratory data proposed by Orrego et al, respectively. RESULTS: All the patients showed different levels of malnutrition, 27% of the cases being severe, 69% moderate and the remaining 4% mild. The serum albumin and the response to cutaneous antigens were the most frequently altered tests, while the brachial muscular extent was the less altered parameter. A lineal correlation between the degree of malnutrition and that of liver dysfunction (r = 0.3998, p < 0.01) is also made evident. CONCLUSIONS: Malnutrition is often associated with chronic liver disease, is of mixed characteristics (marasmus and Kwashiorkor disease), and seems to aggravate with the progression of the liver dysfunction.

Adult↗
PubMed1990

[Isotopic radioangiography in hepatic cirrhosis. Changes induced by somatostatin].

The value of first step isotopic angiography (FSIA) with 99-TC in the study of altered liver kidney and spleen circulation in patients with liver cirrhosis and alcoholic hepatitis is analyzed. This technique is used to evaluate the effect of a 250 mcg IV bolus of somatostatin on the activity/time curve at the three circulatory levels. The ratio of basal hepatic artery/portal flow in cirrhotics was 59 + 11/41 + 11% and 39 + 6/61 + 4 in alcoholic hepatitis, significantly different from normal controls (p less than 0.001). In cirrhotics the degree of alteration in FSIA correlated with the severity of liver disease. Somatostatin significantly improved the ratio of basel hepatic artery/portal flow and diminished the pressure at the root of suprahepatic veins (18.5 +/- - v.s. 16 +/- mmHg, p greater than 0.001). Neither the slopes nor the time of maximum isotopic activity of renal and splenic activity/time curves were modified. We concluded highlighting the clinical value of FSIA as a non invasive test in the study of chronic liver diseases.

Adult↗
PubMed1986

Tight junction alterations of respiratory epithelium following long-term NO2 exposure and recovery.

Acute exposure to NO2 is reported to disrupt tight junctions in lung epithelium. We have studied the effects of chronic NO2 exposure and recovery breathing clean air to tight junctions of distal airway and alveolar epithelium. Syrian Golden hamsters were exposed to NO2 (30 PPM) for 5 or 9 months and a group of those animals for 9 months were allowed to recover breathing clean air for 3 or 9 months. Animals were sacrificed after 5 and 9 months of NO2 exposure and after 3, and 9 mos. recovery breathing clean air. The lungs were carefully removed, inflation fixed with glutaraldehyde and then processed for freeze fracture and transmission electron microscopy of ultra-thin epon sections. Evaluation of tight junctions of bronchioles and alveoli were disrupted in ultrathin sections and freeze fracture replicas during the period of NO2 exposure. Fibril number, length, degree of fragmentation and orientation were different from age matched controls. The bronchiolar tight junctional fibrils were quantitatively reduced in number and fragmented into much smaller fibril lengths. Alveolar tight junctions were qualitatively disrupted in a similar fashion, however, the sites of damage were focal. During recovery tight junctions in bronchioles did not regain normal fibril number, orientation and continuity, based on quantitative assessment, observed in age matched controls. Alveolar tight junctions remained focally altered. This data indicated that chronic NO2 altered morphologic characteristics of epithelial tight junctions of the lung throughout the period of exposure. The repair process during recovery did not restore the normal tight junction ultrastructural organization observed in age controls. This persistent deviation from the normal is likely to alter and compromise airway epithelial barrier function in the lungs of these hamsters.

Animals↗