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Biomedical subjects

M Crespo

Publications and source records attributed to M Crespo.

At least 73 records · Page 4Linked to original sources
PubMed1994

Complete heart block in an adult with systemic lupus erythematosus.

Report of a case of complete heart block in a patient with systemic lupus erythematosus (SLE). The cardiac disturbance presented as repeated syncopal episodes and normal cardiac clinical and electrocardiographic examination between these episodes. Circulating anti-U1RNP antibodies were detected and tests for anti-SSA/Ro, anti-SSB/La and antiphospholipid antibodies were negative. Evidence of myocarditis was not found. The diagnosis was just established when the patient developed a syncopal episode during hospitalization. Only one SLE case with a similar clinical course has been reported previously.

Adult↗
PubMed1994

[Homocysteinemia as a risk factor in early cerebrovascular disease].

PURPOSE: To determine whether hyperhomocysteinemia represents a risk factor of early thrombotic cerebrovascular disease. METHOD: In a group of patients under 55 years of age (n = 33, 19 males) which had suffered a stroke from 3 months to 1 year before the study, defined by clinical criteria and presence of cerebral infarction confirmed by tomography, without history or predisposition to embolic disease. The patients were matched with a group of normal controls of checkup program, in terms of age, and sex. Patients and controls with a history of alcoholism, clinical or laboratory signs of renal or hepatic insufficiency or with a history of recent ingestion of Group B vitamins were excluded since these conditions would influence homocysteinemia levels. We measured the plasmatic basal homocysteinemia of patients and controls (HC) and 6 hours later a methionine overload of 0.1 g/Kg body weight (LOAD HC). RESULTS: Patients; Controls; Signific.; Age 46.0 +/- 7.7; 45.9 +/- 7.8; NS; Basal HC. 10.1 +/- 3.4; 8.5 +/- 1.7; p < 0.05; Load HC 28.0 +/- 7.6; 22.7 +/- 5.5; p < 0.01. CONCLUSION: In this study hyperhomocysteinemia appears as a risk factor for thrombotic cerebrovascular disease before the age of 55;-The measurement of homocysteinemia after the methionine loading test was more discriminative than the basal measurement;-A larger number of patients and controls will be necessary to establish the relative importance of homocysteinemia among other vascular risk factors in cerebrovascular disease.

Adult↗
PubMed1992

Effect of recombinant human growth hormone in a postpediatric hemodialysis patient with delayed growth.

We present an 18-year-old patient who has been on renal replacement therapy since the age of 11. He had growth retardation and delayed puberty, with a bone age of 13.6 years. Treatment with human recombinant growth hormone (rhGH) resulted in a clearcut increase in height and lean body mass. We emphasize that rhGH treatment could be tried even at a postpediatric age, provided bone radiology suggests that further growth is possible.

Adolescent↗
PubMed1992

[Comas in the emergency room of a central hospital].

The aim of the present prospective work was to study the etiologic diagnosis and prognosis of the comatose patients for whom a neurologic examination is requested. It included 148 consecutive cases admitted to the emergency room of a general hospital. Coma was caused by supratentorial lesions in 38%, subtentorial lesions in 10%, diffuse or metabolic brain dysfunction in 49%, and psychiatric disorder in 1% of the patients. CT scan was the most valuable ancillary exam, modifying the initial etiologic diagnosis in 42% of the cases on whom it was performed. Seventy percent of the patients died. Coma caused by structural lesions had a worse outcome than coma caused by diffuse or metabolic brain dysfunction (intoxications excluded), and this type of coma had a worse outcome than drug-induced coma. The presence of anisocoria, the number of brainstem reflexes present and the pattern of motor response, as well as the Glasgow Coma Scale score, predicted the outcome.

Adult↗
PubMed1991

[Pulmonary involvement in familial amyloid polyneuropathy type I].

Familial amyloid polyneuropathy type 1 or Corino Andrade's disease (FAP 1) is classified amongst the hereditary systemic amyloidosis, being autosomically dominant and preferably affecting the peripheral nervous system. Our country is the fourth world focus with regard to incidence, preceded only by Portugal, Japan, and Sweden. Amyloid involvement is rare, generally following primary forms. There are only three cases described of these hereditary forms, none of which is of the FAP type 1. Our goal is to present a patient diagnosed of FAP type 1 who developed hemoptysis during the course of her disease, observing an amyloid bronchial infiltrate in the samples obtained by bronchoscopy. This is the first case described of pulmonary involvement in this type of amyloidosis according to the literature reviewed.

Adult↗
PubMed1990

[Vipoma of the pancreas. Apropos of a case and review of the literature].

Pancreatic endocrine tumors are uncommon; of this type of tumors, the Verner-Morrison's syndrome, WDHA or vipoma is diagnosed very rarely. The present paper is a report of a pancreatic vipoma in a 60 year-old female; she presented with watery diarrhea, facial flushing, hypokalemia, hypochlorhydria, metabolic acidosis and reversible renal failure; these are the usual manifestations of the syndrome. The diagnosis was made on the basis of radiological imaging, CAT and arteriography as well as the finding or elevated levels of vasoactive intestinal peptide (VIP). The surgical resection of the tumor was followed by the remission of the symptoms and normalization of the plasmatic levels of VIP. It is necessary to recognize this type of tumors because the only way to achieve a curative surgical resection is after an early diagnosis.

Adenoma, Islet Cell↗
PubMed1989

[Congenital cardiopathy in a series of 53,578 children born in Oviedo (1976-1985)].

A diagnosis of congenital heart disease was carried out in the 5.2/1,000 of 53,578 live neonates who were born in the Hospital "Nuestra Señora de Covadonga" from 1-1-1976 to 12-31-1985. A relatively high and low incidences of ventricular and atrial septal defects were respectively found. The 69.1% of heart diseases were identified in the first month of life.

Adolescent↗
PubMed1988

Young adult stroke: neuropsychological dysfunction and recovery.

Etiology, neuropsychological deficits, aphasia type, and recovery were retrospectively studied in 254 young adults with stroke. Cardiac embolism was the most common cause of stroke in patients younger than 40, while atherosclerosis was the most frequent etiology among those aged 41-50 years. In 166 aphasic patients, Broca's aphasia was the most common while Wernicke's and transcortical aphasias were rare. Compared with an older aphasic population, young patients had significantly more nonfluent aphasias and fewer comprehension deficits. These differences were related to stroke localization: the majority of infarcts localized by computed tomography in 37 patients involved either the entire middle cerebral artery territory or its superior or deep branches, explaining the preponderance of nonfluent aphasia. Prognosis of aphasia in our patients was better than has been reported for non-age-selected aphasia populations. Roughly one third of our patients recovered completely, one third improved, and one third had an unresolved language deficit. Complete recovery and significant improvement were observed even greater than 6 months after stroke. In some patients, recovery was much better than might have been predicted from lesion site and size depicted on computed tomograms.

Adolescent↗
PubMed1988

Unusual evolution of Wilms tumor in a patient with Wiedemann-Beckwith syndrome.

A very unusual case of Wilms tumor in a child with Wiedemann-Beckwith syndrome is presented. The patient had his first metastasis after a disease-free interval longer than three years. Later, he developed spinal epidural involvement. Both data emphasize the oncogenic potential of Wiedemann-Beckwith syndrome in children and support the contention that Wiedemann-Beckwith syndrome worsens the prognosis of Wilms tumor. Patients with Wilms tumor associated to Wiedemann-Beckwith syndrome should receive intensive therapy as well as close and prolonged follow-up in spite of apparent tumor remission.

Antineoplastic Combined Chemotherapy Protocols↗
PubMed1987

Idiopathic hypercalciuria in children: pathophysiologic considerations of renal and absorptive subtypes.

Sixteen children with idiopathic hypercalciuria and seven control children were observed. Patients were classified into two groups by means of an orally administered calcium loading test. Individuals with renal hypercalciuria (five children) had a high fasting urinary calcium/creatinine concentration ratio (0.27 +/- 0.05), a mild increase of this value after calcium administration (0.29 +/- 0.07, P less than 0.05), and elevated mean serum parathyroid hormone (PTH) concentrations (0.95 +/- 1.14 ng/ml). Patients with absorptive hypercalciuria (11 children) had fasting urinary calcium/creatinine concentration ratio of 0.11 +/- 0.04, a large increase of this index after calcium loading (0.25 +/- 0.06, P less than 0.0005), and normal levels of serum PTH (0.29 +/- 0.10 ng/ml). Next, we examined the effects of two different calcium intakes on urinary calcium excretion, serum calcium, PTH, and 1,25-dihydroxyvitamin D3 concentrations. In patients with absorptive hypercalciuria, the increased calcium intake resulted in significant increments of calciuria (P less than 0.0005), mild elevation of serum calcium concentration (P less than 0.05), and reduction of serum 1,25-dihydroxyvitamin D3 concentrations (P less than 0.005). By contrast, these values were not modified in children with renal hypercalciuria. Serum PTH did not change within each group. After dietary calcium supplementation, serum ratios of 1,25-dihydroxyvitamin D3 to calcium, phosphate, and PTH concentrations decreased significantly only in the group of children with absorptive hypercalciuria. Our data support the contention that 1,25-dihydroxyvitamin D3 metabolism is different in the two groups of patients with hypercalciuria.

Absorption↗
PubMed1987

Serum levels of total IgE in non-allergic children. Influence of genetic and environmental factors.

The purpose of this study was to establish the range of total serum IgE in a healthy population lacking personal and family history of allergy, as well as the influence of genetic factors (family history of allergy), environmental factors (degree of air pollution), age, and sex on the serum IgE levels. Using a commercial enzyme immunoassay (Phadezym IgE Prist) the mean serum level of IgE was determined in 363 non-atopic children from 0 to 12 years of age. The geometric mean of serum IgE increased according to age, indicating a positive correlation between both. Higher mean values of serum IgE were found for children with a family history of allergy, than for children without (27.82 and 14.49 U/ml respectively). The percentage of variation due to age was about 94.5% in children with no family history of allergy. The mean value of serum IgE increased with the degree of air pollution in the living area (15.49 U/ml in non-polluted areas, 20.78 U/ml in very polluted areas). However, the influence of air pollution was smaller than the influence of family history on the mean values of serum IgE. The mean value of serum IgE was not modified by sex.

Age Factors↗