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J M Carrera

Publications and source records attributed to J M Carrera.

15 recordsLinked to original sources
PubMed1998

Prenatal diagnosis of isolated hypospadias.

Ten cases of prenatal diagnosis of isolated hypospadias are presented, six of them in the second trimester. The echographical basis for the suspected diagnosis of hypospadias are: anomalous distal morphology of the penis, small lateral folds (dermal remains of the prepuce), small penis with ventral incurving and anomalous urinary stream. The embryogenesis and the clinical utility of prenatal study of the genitals of the fetus, not only to determine the sex, but also to detect anomalies, are discussed.

Female↗
PubMed1998

Prenatal diagnosis of testicular torsion.

A case of the prenatal diagnosis of testicular torsion at 39 weeks' gestation is presented. The affected testicle was observed as a small rounded area of hypoechogenicity with a peripheral echogenic ring without hydrocele. The appearance was suggestive of the chronic phase of testicular torsion. The neonatal genital exploration confirmed the diagnosis.

Adult↗
PubMed1997

Early detection of reversed diastolic umbilical flow: should we offer karyotyping?

In normal pregnancy, end-diastolic flow appears in the umbilical artery around the 13th week of gestation, with a velocity which increases progressively with advancing gestation. The detection of reversed flow in the umbilical artery, the highest expression of an increase in placental vascular resistance, is extremely uncommon in the first half of gestation and, in three of the four cases reported in the literature, there were chromosomal abnormalities. We report a new case of reversed end-diastolic flow in the umbilical artery in a 13-week fetus with increased nuchal translucency thickness, megacystis and tachycardia. Cytogenetic analysis of chorionic villi and amniocytes revealed trisomy 13. The findings provide further evidence for a possible association between reversed end-diastolic flow in the umbilical artery and chromosomal abnormalities. However, the effectiveness of this potential marker in an unselected population requires further evaluation.

Adult↗
PubMed1997

[Complete congenital atrioventricular block. Prenatal diagnosis and perinatal management].

OBJECTIVE: To describe our experience in prenatal diagnosis and perinatal management of congenital atrioventricular heart block, as well as pacemaker treatment in the neonate. MATERIAL AND METHODS: A total of 13 fetuses are included. The diagnosis of atrioventricular dissociation was established by Doppler heart rate sample in the right atrium to show the atrial activity while the sample in the Aorta reflected the ventricular heart rate. Gestational age at diagnosis, ventricular heart rates, autoimmune maternal pathology, maternal blood tests for autoantibodies antiRo+, congenital structural heart disease, fetal hydrops, maternal medical treatment, perinatal results and pacemaker neonatal implantation are described. RESULTS: Gestational age at diagnosis ranged between 22 and 32 (mean 27.6) weeks. Ventricular heart rates ranged between 32 to 80 (mean 54) beats/min. AntiRo+ antibodies were detected in 5 mothers, and clinical systemic lupus erythematosus was found in only one. Four had congenital heart disease (2 ventricular inversion and corrected TGA, 1 complete atrio-ventricular canal and 1 tricuspid atresia). Signs of heart failure and hydrops were detected in 9 fetuses. Treatment with beta-metasona and ritodrine was administered to 7 mothers when the ventricular heart rate dropped below 60 beats/min. Intrauterine fetal death occurred in 3 fetuses with structural congenital heart disease and hydrops. Delivery was performed by cesarean section in 8 preterm fetuses (one them a twins), 3 spontaneous deliveries at term and 3 stillbirth. Postnatal pacemaker implantation was carried out in 9 newborns (3 cases with unicameral temporal right ventricle electrode and 6 cases with permanent bicameral electrodes implanted through the subclavian vein and DDD pacemaker). Follow-up of the bicameral pacemaker group was satisfactory. CONCLUSION: Persistent fetal bradycardia is the first sign to diagnose prenatal complete atrioventricular heart block. Echocardiography asses fetal haemodynamic status and may detect signs of fetal deterioration. Hydrops and further drop in the ventricular heart rate warrant urgent cesarean section and pacemaker management of the newborn.

Female↗
PubMed1995

Routine prenatal ultrasound screening for fetal abnormalities: 22 years' experience.

We describe the results of routine obstetric ultrasound examination over a period of 22 years (1970-91) at the Institut Universitari Dexeus, Barcelona, Spain. A total of 1006 malformed fetuses or neonates were identified at abortion or delivery. The prevalence of fetal abnormalities was 3.03%. Fetal anomalies were diagnosed antenatally in 788 (78.33%) cases. Early prenatal diagnosis (before 22 weeks of gestation) was made in 598 (59.44%) cases. The detection of malformed fetuses increased from 19.75% in the first phase of the study (1970-74) to 96.33% in the last phase (1990-91). The specificity of the method was over 99% throughout the study period. The most frequently diagnosed anomalies were urinary tract anomalies (22.86% of cases), followed by head and neck anomalies (18.68%), musculoskeletal anomalies (8.64%), heart anomalies (7.35%) and gastrointestinal anomalies (7.35%). The earliest diagnosed malformations were those of the thoracoabdominal wall (81.08%), followed by defects of the urinary tract (70.86%) and of the diaphragm (70.83%).

Congenital Abnormalities↗
PubMed1990

Prenatal diagnosis of intrapericardial teratoma.

A case of intrapericardial teratoma diagnosed by ultrasound before birth is described. Planning for delivery and immediate neonatal intensive management allowed successful cardiac surgery, full resection of the tumour and full recovery.

Adult↗
PubMed1986

Prenatal diagnosis of gastrointestinal tract obstructions.

The types of obstructive lesions of the gastrointestinal tract which can be diagnosed before birth are briefly reviewed. The importance of obtaining a karyotype in certain lesions (such as duodenal atresia) is stressed. The usefulness of the antenatal diagnosis of such lesions in planning obstetric management is stressed.

Duodenal Obstruction↗
PubMed1982

[Perinatal histories of 22 newborns with malformations of the central nervous system].

The authors reviewed the perinatal histories of 22 newborns malformations of the central nervous system, among 9,323 consecutive births in the last five years, with particular emphasis on the incidence and types of malformations, as well as the most important findings of the parents anamnesis. Prenatal ultrasonography is stressed out as an important tool in the precocious diagnosis of such a kind of malformations.

Adult↗
PubMed1977

Colposcopy.

Explore the source record for details and available documents.

Adenocarcinoma↗