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210 results on '"LA TORRE, Renato"'

118. Structural-tridimensional study of yolk sac in pregnancies complicated by diabetes.

Author

Cosmi, Erich, Piazze, Juan J., Ruozi, Angelo, Anceschi, Maurizio M., La torre, Renato, Andrisani, Alessandra, Litta, Pietro, Nardelli, Giovanni Battista, and Ambrosini, Guido

Subjects
YOLK sac, DIABETES, PREGNANT women, PREGNANCY complications, PLACENTA, ULTRASONIC imaging
Abstract

Objectives: To assess by two- and three-dimensional ultrasound the diameter and volume of the yolk sac in pregnant women affected by type 1 diabetes during the first trimester of pregnancy. Methods: 18 women affected by insulin-dependent diabetes mellitus (IDDM) and 52 normoglycemic pregnant women (controls) were enrolled in this study. The women were evaluated once a week (5-12 weeks of pregnancy). Ultrasound examination in all pregnant women was initially performed in a bidimensional fashion with a transvaginal 6.5-MHz probe and subsequently using a three-dimensional technique. Results: In the pregnant diabetic women the diameter of the yolk sac was significantly higher than that of controls in the first weeks of pregnancy, reaching a maximum diameter at 9 weeks, and decreasing thereafter, earlier than controls. The volume of the yolk sac increased in both groups from 5 weeks of pregnancy and reached maximum values at 10 weeks in both groups. The volumetric increase and decrease after reaching highest values were greater in IDDM patients. Conclusion: The clinical and diagnostic implications of the results of this study are still to be defined. Such a diagnostic technique may prove to be an additional element in monitoring diabetic women during early pregnancy. [ABSTRACT FROM AUTHOR]

Published
2005
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119. Preliminary report on a new and noninvasive method for the assessment of fetal lung maturity.

Author

La Torre, Renato, Cosmi, Erich, Anceschi, Mauricio H., Piazze, Juan J., Piga, Maria Domenica, and Cosmi, Ermelando V.

Subjects
*FETAL diseases, *PREGNANCY complications, *AMNIOCENTESIS, *ULTRASONIC imaging, *OBSTETRICAL diagnosis
Abstract

Object: Several patterns of fetal breathing movements (FBMs), i.e. abdominal wall movements (AWm), thoracic wall movements (TWm) and nasal fluid flow velocity waveforms (NFFVW), were investigated by ultrasound (US) technology and related to fetal pulmonary maturity and immaturity, i.e. fetal lung maturity (FLM) tests, in order to validate the hypothesis that they may indicate whether the fetal lung is mature or immature, regardless of gender, weight and gestational age. Material and methods: We prospectively enrolled 143 high-risk pregnancies in which a complete US study of FBMs and FLM tests was performed. Among them 43 women satisfied the inclusion criteria. US-FLM was defined as the presence of regular NFFVW detected by pulsed Doppler and spectral analysis, or irregular NFFVW synchronous with TWm detected by M-mode.An US guided amniocentesis was performed in order to collect amniotic fluid (AF) and FLM was evaluated by L/S (lecithin/sphingomyelin) determination, presence of phosphatidylglycerol (PG) and lamellar bodies (LBs) count.At the end of the study the diagnostic accuracy of US-FLM was compared to that of FLM tests. Results: Diagnostic accuracy for US evaluation of FLM was as follows: sensitivity: 89,6%; specificity: 85,7%; PPV: 92,8%; NPV: 80%. Diagnostic accuracy of FLM tests was as follows: sensitivity: 100%;specificity: 51,7%; PPV: 100%; NPV: 50%. L/S determination predicted lung maturity with a sensitivity of 100%; specificity of 93,1%; PPV of 100%; NPV of 87,5%. Conclusion: Presence of regular NFFVW or irregular NFFVW and TWm correlate accurately with conventional FLM tests.We suggest that this noninvasive procedure may be helpful for assessing FLM, particularly under certain circumstances, e.g., oligo-anhydramnios, laboratory logistic equipment difficulties or heavily stained AF samples, amniocentesis refusal, religious concerns. [ABSTRACT FROM AUTHOR]

Published
2003
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123. L'ecografia, la donna e l'immagine

Author

Ostuni, Rosa, DI GIUSTO, Maria, Maggi, Eugenio, DE PROSPERI, Vincenzo, LA TORRE, Renato, Giancotti, Antonella, and Pachi', Antonio

Published
1986

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