PubMed Health⌕ Search

Biomedical subjects

N Roguin

Publications and source records attributed to N Roguin.

At least 19 recordsLinked to original sources
PubMed1992

Closure of the ductus venosus in neonates: findings on real-time gray-scale, color-flow Doppler, and duplex Doppler sonography.

OBJECTIVE: Our objective was to document the anatomy, flow pattern, and time of closure of the ductus venosus in healthy full-term neonates. SUBJECTS AND METHODS: We examined the ductus venosus in 73 neonates by using gray-scale sonography, color flow imaging, and duplex Doppler sonography. Each neonate was examined 1-2 days after birth, 6-7 days after birth, and then every 3-4 days until closure was confirmed or the neonate was 18 days old. The length, width, and color flow and duplex Doppler characteristics of the ductus were noted. Closure of the ductus at 6-7 days after birth was examined with respect to birth weight, hemoglobin level, and gestational age. RESULTS: The ductus venosus, extending from the left portal vein to the inferior vena cava, was identified with all three techniques. The ductus was patent in all 73 neonates 1-2 days after birth. It was still patent in 41 (68%) of 60 neonates reexamined 6-7 days after birth and in two of three neonates (11% [7/60]) reexamined 17-18 days after birth. Blood flow within the ductus was cephalic, in a constant venous waveform. Initial flow velocity ranged from 0.15 to 0.70 m/sec and decreased consistently in subsequent examinations. There was no significant difference in birth weight, hemoglobin level, or gestational age between the group whose ductus was closed and the group whose ductus was open at 6-7 days after birth. CONCLUSION: The ductus venosus in neonates is consistently detectable on sonography. It is patent in a greater percentage of neonates, and for a longer time, than was previously shown with conventional radiographic studies with angiography.

Blood Flow Velocity↗
PubMed1990

Contraindication to thrombolytic therapy in accidental hypothermia simulating acute myocardial infarction.

A 35-year-old schizophrenic patient was admitted to the Coronary Care Unit with shock, bradycardia and ST-T changes mimicking acute myocardial infarction. The rectal temperature was 33.6 degrees C and the diagnosis of accidental hypothermia was established. Accidental hypothermia must be considered in the differential diagnosis of acute myocardial infarction before instituting thrombolytic therapy.

Adult↗
PubMed1990

Adult acute rheumatic fever: a rare case presenting with left bundle branch block.

In contrast to the more common electrocardiographic patterns seen in acute rheumatic fever, such as first-degree heart block, the appearance of left bundle branch block is rare. An adult patient with acute rheumatic fever presented with left bundle branch block on admission, subsequently had sudden cardiac arrest. She was resuscitated successfully and required temporary pacing. An echocardiogram and radionuclide ventriculography were compatible with interventricular septal involvement in the rheumatic carditis. After 20 days of steroid therapy, the left bundle branch block pattern of the electrocardiogram disappeared. A possible mechanism for the development of complete heart block in acute rheumatic fever is discussed. It is suggested that patients with acute rheumatic carditis who have electrocardiographic manifestations of prolonged P-R interval and left bundle branch block should be managed with prophylactic pacing.

Acute Disease↗
PubMed1989

Unusual drainage of the inferior caval vein in left atrial isomerism.

Two of the 26 cases of left atrial isomerism in our clinical material had an unusual drainage of the inferior caval vein. In one, the inferior caval vein crossed from left to right infradiophragmatically and then drained into the right-sided morphologically left atrium. In the second case, there was azygos continuation to both right and left superior caval veins. These variations have major surgical significance.

Child, Preschool↗
PubMed1987

Familial combined sinus node and atrioventricular conduction dysfunctions.

Eighteen members of a family were investigated for cardiac conduction abnormalities following the discovery of a second-degree atrioventricular block in a fetus at 35 weeks of gestation. The conduction disturbance was diagnosed by ultrasonography. Seven of the family members were diagnosed as suffering from sinus node dysfunction and/or various degrees of atrioventricular block. Three of them were children aged 9 months to 6 years and all were asymptomatic. The symptomatic family members were two adults. One of them had a pacemaker inserted for a complete atrioventricular block and Adam-Stokes attacks while the other had had several fainting attacks. The clinical, electrocardiographic and ultrasonographic findings of the family members are presented. Previous reports in literature have documented the dominant transmission of familial sinus node dysfunctions or of familial cardiac conduction disturbances. The coexistence of both dysfunctions in the same family has not been emphasized in previous reports. A review of these previously reported families, as well as our patients, suggests the need of investigation and follow-up of the families in which one member of any age is diagnosed as suffering from an "idiopathic" disturbance of the cardiac conduction system.

Adult↗
PubMed1987

Radionuclide angiography of azygos continuation of inferior vena cava in left atrial isomerism (polysplenia syndrome).

Interruption of the inferior vena cava with azygos continuation is present in at least 65% of the patients suffering from left atrial isomerism (polysplenia syndrome). First-pass radionuclide angiography using a peripheral vein of the foot correctly diagnosed interruption of the inferior vena cava in seven patients. Four had azygos continuation to the right superior vena cava and in three it was to the left superior vena cava. In all the patients, cardiac catheterization confirmed the diagnosis. Four underwent surgical correction (or palliation), three are waiting for an operation. Radionuclide angiography is a simple outpatient procedure and useful in the clinical diagnosis of this syndrome.

Abnormalities, Multiple↗
PubMed1986

Pacemaker implantation in a patient with a Behçet's disease associated with superior vena cava obstruction.

A 65-year-old man with Behçet's disease developed transient complete A-V block with syncope. An attempt to implant a permanent transvenous endocardial electrode failed owing to obstructions in the subclavian, innominate, and superior vena cava veins demonstrated by angiography. Sutureless epicardial electrodes were successfully implanted through a subxyphoid approach. Obstruction in the great veins is a common feature in patients with Behçet's disease. We suggest that patients with this disorder, who require a permanent pacemaker, should be investigated by angiography prior to implant to rule out obstruction in the upper great veins.

Aged↗
PubMed1986

Consanguinity and congenital heart disease in the rural Arab population in northern Israel.

The incidence of congenital heart disease (CHD) was examined in relation to the consanguinity of the parents. The study was performed in five Arab villages in the Western Galilee, Israel, where consanguineous matings are known to be very high. All children up to the age of 7 years were included in this study; there were 1,546 children, 32% were the offspring of consanguineous marriages including first- and second-degree cousins. A higher percentage of isolated CHD was found in the offspring of consanguineous marriages: 2.81% out of 498 children compared to 1.24% in 1,048 offspring of unrelated parents. Among 373 children whose parents were first cousins the percentage of CHD rose to 3.22. The differences in CHD frequencies were found to be statistically significant. CHD is believed to have a multifactorial background. This study shows that the genetic influence is an important factor in the etiology of such malformations.

Child↗
PubMed1985

Echocardiographic findings in Pompe's disease with left ventricular obstruction.

Two infants with Pompe's disease (type II glycogenosis) showing echocardiographic evidence of obstructive cardiomyopathy are described. On M-mode and two-dimensional (2-D) echocardiography there was a severe hypertrophy of the interventricular septum, free, and posterior left ventricular wall with midsystolic closure of the aortic valve. The combined echocardiographic and electrocardiographic findings are helpful in the clinical diagnosis of this severe disease.

Cardiomyopathy, Hypertrophic↗
PubMed1979

Asplenia syndrome. Report of two cases.

Two babies with asplenia syndrome are described. Both presented with the severe cardiovascular anomalies found in this syndrome and had Howell-Jolly bodies in peripheral blood smears. The chest X-rays showed dextrocardia, decreased pulmonary circulation and a horizontal symmetrical liver, and were helpful in the clinical diagnosis. Additional findings at autopsy included a mobile cecum and bilateral trilobed lungs with bilateral eparterial bronchi.

Abnormalities, Multiple↗
PubMed1978

Cardiac involvement and superior vena caval obstruction in Behçet's disease.

A patient with Behçet's disease developed the rare complications of pericarditis and, two months later, superior vena caval obstruction. The latter complication was investigated by angiography to exclude other causes. As a result of this investigation the caval obstruction was managed conservatively, the symptoms and signs improving spontaneously.

Adult↗