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Biomedical subjects

M Cruz

Publications and source records attributed to M Cruz.

At least 127 records · Page 7Linked to original sources
PubMed1983

[Congenital heart block in a newborn infant born to a mother with lupus erythematosus].

We report a case of a newborn with a congenital heart-block. Clinical picture began with bradycardia and heart failure from birth. The mother had a systemic lupus erythematosus in remission during pregnancy suffering a reactivation after delivery. This report deals about the greater incidence of congenital heart-block in the lupus-mother's newborns and we expose some etiopathogenic hypothesis. Also we point-out the easy clinical and electrocardiographic diagnosis that shows a third degree heart-block with atrioventricular dissociation and atrial frequency two or three times greater than ventricular. It's established the differential diagnosis among neonatal bradycardias and congenital heart-blocks. The treatment with isoproterenol was ineffective. A pacemaker was need.

Female↗
PubMed1982

[Basal cell nevus syndrome and gigantism].

Authors report a representative case of basal cell nevus syndrome with great expressivity. The patient is a thirteen-year and ten-month-old girl. She shows the five major criteria of this disease: basal cell nevi, jaw cysts, skeletal abnormalities (bifid ribs, block vertebrae, rachischisis), ectopic calcifications (falx cerebri, tentorium cerebelli, interclinoid ligaments) and pits on the palms of both hands. Moreover the patient had a right ovarian fibroma with a lot of calcified zones inside as well as several small fibromas of the left ovary. Giantism was associated with this syndrome. This finding has not been published before.

Adolescent↗
PubMed1981

[Collagenosis in childhood (author's transl)].

A revision of the present concept of the named collagenosis in the pediatric age, supported of the experience of the Pediatrics Department at the Barcelona University is exposed. A casuist of 109 cases of the Schoenlein-Henoch syndrome, 55 observations of juvenile rheumatoid arthritis and 16 pediatric patients affected of classic collagenosis is included. A classification of the collagenosis in pediatrics, discriminating classic forms and other process and in both groups the entities of known etiology, and the unknown ones, that are majority, been considered as collagenosis in the strict sense is offered.

Adolescent↗
PubMed1979

Gram-negative germs infections in infancy.

The incidence of systemic or local infections due to gram-negative bacilli in an Infant Ward from September 1969 to December 1976 was 7.9%. The 29.34% were septicemia, most of them as epidemic outbreaks caused by Pseudomonas aeruginosa, Klebsiella-Enterobacter and Serratia marcescens. Two facts are to be emphasized: an almost complete disappearance of systemic infections with Pseudomonas starting from 1972, and the global predominance of the group Klebsiella-Enterobacter, particularly evident from 1970 to 1972.

Bacterial Infections↗
PubMed1979

[Anosmia and hypogonadism (Kallman's or Maestre de San Juan's syndrome (author's transl)].

A patient, aged 15 years and three months, with hypogonadism and anosmia (Kallman's syndrome or Maestre de San Juan's syndrome) is presented. It is an sporadic case, with no associated abnormalities, who had been seen due to a lack of sexual development. Basal levels of plasmatic LH and FSH were lower than the sensitivity threshold of the method: 1.5 mlU/ml. Administration of 100 ng of GnRH alone in one dose did not evoke any change of these levels; when the same dosage was given during five consecutive days, plasmatic levels of both gonadotropins increased. Initial treatment with HCG (5,000 IU, biweekly) evoked very favourable changes in somatic and genital development.

Adolescent↗
PubMed1979

[Male pseudohermaphroditism due to deficit in the conversion of cholesterol to delta5 pregnenolone (author's transl)].

One patient, aged 13 months, considered phenotipically a female, was admitted with a picture of acute dehydration. Familial history (one sister dead from the same picture at the age of 18 months), clinical data (several episodes of dehydration, dark skin and mucosae, and slight abnormalities in the external genitalia), hormonal examinations (low plasmatic levels of cortisol, aldosterone, androgens and low urinary excretion of 17 hydroxycorticoids, dehydroepiandrosterone and ethiocholanolone), chromosomal examination (karyotype XY) and histological data (normal testis) suggested a diagnosis of male pseudohermaphroditism with complete feminization due to an abnormal conversion of cholesterol in delta5 pregnenolone. Late appearance of the first episode of dehydration, particularly intense cutaneous pigmentation and statural growth and bone maturation both unaffected, are some particular traits of this patient.

3-Hydroxysteroid Dehydrogenases↗
PubMed1979

Neonatal sepsis.

A review of neonatal sepsis, based on 30 recent cases is presented. After analyzing their personal experiences, the authors review the etiopathogeny (higher incidence in small-for-date, preterm, postterm and in some macrosomic newborns; predominance of gram-negative germs), the importance of early diagnosis, and correct treatment, adapting the antibiotherapy to the bacteriological flora of the location at the time of treatment.

Humans↗
PubMed1979

Mycoplasma pneumoniae infections.

A review of infections with Mycoplasma pneumoniae in children, emphasizing their frequency, association with viral infections, nonspecific clinical aspects, diagnostic data, and extrapulmonary possible manifestations is presented. This work was based on 320 analyses made in a period of 3 years. 15 of those analyses were serologically positive for M. pneumoniae, and 10 of them were also serologically positive for virus.

Child, Preschool↗
PubMed1978

Detection of urinary fibrin-fibrinogen degradation products in kidney transplantation.

Several techniques are used to detect rejection episodes in renal transplants; complexity renders these tests impractical for clinical use in most cases. This paper reports the results obtained in the study of urinary FDP, by counterimmunoelectrophoresis, in 50 healthy subjects and in 360 consecutive samples from 18 renal transplant recipients; urine specimens were examined daily for periods of time of up to 60 days post transplant. Endogenous creatinine clearance levels were also quantified. Our findings show that while in normal subjects negative tests were always obtained in kidney transplant patients, increased FDP excretion was found, with peak levels observed at least 24 hours before the decrease of glomerular filtration rates and clinical manifestations of acute rejection which subside with immunosuppression. Finally, urinary FDP excretion in the oliguric phase of post transplant acute renal failure was similar to that of patients where kidney transplants functioned without any evidence of rejection.

Acute Kidney Injury↗
PubMed1976

Cirrhosis and heterozygous alpha1-antitrypsin deficiency in a 4-year-old girl.

A 4-year-old girl with hepatic cirrhosis was found to have alpha1-antitrypsin deficiency. The method of FAGERHOL detected that she is a heterozygous carrier of the Pi SZ type. Investigations with the light and the electron microscope and immunofluorescence tests confirmed the diagnosis. The values of alpha1-antitrypsin and trypsin inhibitory capacity gave intermediate values. The fact that in the patient, the Z allele was combined with an S allele may have contributed to the severity of the illness.

Alleles↗
PubMed1976

[Serum ige levels in healthy children (author's transl)].

Serum IgE levels have been measured in a group of 55 healthy children from 2 to 10 years of age. The IgE mean value increases with the age but no sexual differences have been found. The numerical distribution of the different genotypes observed in the unselected population, follows the Hardy-Weinberg law, which describes the segregation of two alleles at a single locus.

Age Factors↗