PubMed Health⌕ Search

Biomedical subjects

S Reisner

Publications and source records attributed to S Reisner.

32 records · Page 2Linked to original sources

New clinical observations in the trichorhinophalangeal syndrome.

Two unrelated Jewish families are reported with new clinical and radiographic findings observed in the trichorhinophalangeal syndrome (TRPS). These new observations are mainly of a skeletal nature and emphasize the wide range of expressivity found in the TRPS. Furthermore, these bony defects along with the characteristic hair changes suggest that the basic defect in this syndrome involves some developmental alteration in the normal growth and maturation of bone and hair.

Abnormalities, Multiple↗

Iatrogenic transmural perforation of the oesophagus in the preterm infant.

Traumatic oesophageal perforation may occur during the intensive care of premature infants due to trauma of the laryngoscope blade, to traumatic intubation with an endotracheal tube or to forced passing of a nasogastric tube. Over a four-year period, three infants of 787 admitted to a neonatal intensive care unit were diagnosed as having this complication. The careful analysis of the position of the nasogastric tube in relation to surrounding structures can be an early clue to the diagnosis of this condition.

Esophageal Perforation↗

Quantitative myocardial ultrasonic integrated backscatter measurements during contrast injections.

We and others have shown that normal myocardium exhibits 4 to 5 dB diastolic-to-systolic cyclic variation (CV) of integrated backscatter. To investigate the effect of intramyocardial contrast on integrated backscatter, we injected 5% sonicated albumin, containing microbubbles in the range of 5 microns in diameter, into the left atrium in nine open-chest dogs. The dogs were anesthetized and placed in the right lateral decubitus position on a specially designed table with a cutout allowing ultrasound imaging from below. Ultrasonic data was obtained from the right precordium by use of a prototype M-mode integrated backscatter system implemented in a commercially available two-dimensional system. Usable data were obtained in eight of nine dogs. Integrated backscatter increased up to 13 dB after contrast injections. There was a significantly decreased CV of integrated backscatter during myocardial contrast in all eight dogs. The mean level of CV of integrated backscatter for the eight dogs decreased from 4.7 dB (530 beats analyzed) without contrast to 2.8 dB during contrast (436 beats analyzed). There was a trend to greater CV at higher levels of contrast. Septal excursion, as measured by M-mode echocardiography simultaneously with integrated backscatter by the same ultrasound beam, was similar with and without contrast (mean 8.2 vs 8.3 mm). Thus left atrium contrast injection produces quantitatively measurable integrated backscatter effects. Cyclic variation of integrated backscatter decreases with contrast. However, at higher contrast levels the decrease tends to be smaller. These effects should be considered during quantitative tissue characterization and myocardial contrast studies.

Albumins↗

Effect of religious observance on infants' sleep position in the Jewish population.

OBJECTIVES: To describe the effect of the level of religiousness on infants' sleep position in the Jewish population. METHODS: A longitudinal telephone survey of randomly selected 608 2-month-old Jewish infants repeated at 4 and 6 months. Results were analyzed versus the four levels of Jewish religion observance. RESULTS: A significant correlation was found between the level of religious practice and sleep position (P < or = 0.002). 56.8% (50/88) of ultra-orthodox parents put their babies to sleep in the non-prone position, compared with 79% (411/520) in the other three groups (P < 0.001). Non-prone sleeping decreased when infants grew. Higher parity correlated with the level of religiousness and with prone sleeping in religious families (OR = 1.15, 95% CI 1.00-1.33, P < 0.001). CONCLUSIONS: Jews and especially the ultra-orthodox families comply significantly less with recommendations to avoid prone sleeping. Specific measures may be required in this population that rely more on personal experience and belief than on health care provider advice.

Humans↗

Dynamic parameters of glycine metabolism in diabetic human pregnancy measured by [15N]glycine and gas chromatography-mass spectrometry.

This study presents kinetic parameters of glycine metabolism during pregnancy and the influence of fuel availability in the maternal compartment. The effect of gestational diabetes mellitus (diet treated) and pre-gestational diabetes mellitus (diet and insulin treated), accompanied by increased fetal growth on [15N]glycine kinetic parameters, compared to normal pregnancies with normal fetal growth, has been determined. This process was measured by administration of a single-dose of [15N]glycine to post-absorptive normal and diabetic pregnant women during the third trimester of pregnancy. Gas chromatography-mass spectrometry was used to determine the 15N enrichment of plasma glycine, and to calculate the pool sizes, turnover rate constants, fluxes and metabolic clearance rates. Glycine pool sizes in pre-gestational diabetes were significantly larger than those in normal pregnancy and gestational diabetes. Glycine turnover rate constants and metabolic clearance rates were not significantly different between the normal pregnant women and the two diabetic groups of pregnant women. Glycine fluxes were significantly higher in the pre-gestational diabetic pregnant women than in gestational diabetes and normal pregnancy. The pre-gestational diabetic pregnant women delivered fetuses with higher birth weights than the other two groups.

Adult↗