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Specialty: Radiology
Condition: Pregnancy

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Total 36 results found since Jan 2013.

Foetal radiation exposure caused by mechanical thrombectomy in large-vessel ischaemic stroke in pregnancy
ConclusionThe estimated doses received by the foetus during diagnostic stroke imaging and mechanical thrombectomy are equivalent to, or less than, purely diagnostic imaging in emergency situations.
Source: Neuroradiology - February 15, 2019 Category: Radiology Source Type: research

Perinatal Arterial Ischemic Stroke in Fetal Vascular Malperfusion: A Case Series and Literature Review PEDIATRICS
SUMMARY: Fetal vascular malperfusion includes a continuum of placental histologic abnormalities increasingly associated with perinatal brain injury, namely arterial ischemic stroke. Here, we describe the clinical-neuroimaging features of 5 neonates with arterial ischemic stroke and histologically proved fetal vascular malperfusion. All infarcts involved the anterior territories and were multiple in 2 patients. In 2 neonates, there were additional signs of marked dural sinus congestion, thrombosis, or both. A mixed pattern of chronic hypoxic-ischemic encephalopathy and acute infarcts was noted in 1 patient at birth. Systemi...
Source: American Journal of Neuroradiology - December 11, 2020 Category: Radiology Authors: Geraldo, A. F., Parodi, A., Bertamino, M., Buffelli, F., Uccella, S., Tortora, D., Moretti, P., Ramenghi, L., Fulcheri, E., Rossi, A., Severino, M. Tags: PEDIATRICS Source Type: research

Influence of maternal characteristics and gestational age on haemodynamic indices: NICOM device ‐specific reference ranges
ConclusionsThis study presents device ‐specific reference ranges for stroke volume, cardiac output and systemic vascular resistance for the NICOM® device in pregnancy and describes the maternal characteristics that are associated with the values of these haemodynamic measurements. Studies using NICOM® in pregnancy can use these ranges in order to evaluate observations relative to those expected in uncomplicated pregnancies conditional on maternal characteristics.This article is protected by copyright. All rights reserved.
Source: Ultrasound in Obstetrics and Gynecology - November 22, 2018 Category: Radiology Authors: Helen Perry, Oliver Stirrup, Juande Gutierrez, Dimuthu Vinayagam, Basky Thilaganathan, Asma Khalil Tags: Original Paper Source Type: research

Preterm delivery and elevated maternal total vascular resistances (a prelude to the future maternal cardiovascular risk?)
ConclusionsWomen with diagnosis of TPD showing TVR values >1000 dynes.sec.cm−5 and elevated CRP levels are at high risk of preterm delivery. An impaired maternal cardiovascular adaptation during pregnancy in these patients might suggest a possible higher risk for subsequent future cardiovascular disease.
Source: Ultrasound in Obstetrics and Gynecology - March 1, 2016 Category: Radiology Authors: Herbert Valensise, Daniele Farsetti, Damiano Lo Presti, Ilaria Pisani, Grazia Maria Tiralongo, Giulia Gagliardi, Barbara Vasapollo, Gian Paolo Novelli Tags: Original Paper Source Type: research

Preterm delivery and elevated maternal total vascular resistances (a prelude to the future maternal cardiovascular risk?).
CONCLUSIONS: Women with diagnosis of TPD showing TVR values >1000 dynes.sec.cm(-5) and elevated CRP levels are at high risk of preterm delivery. An impaired maternal cardiovascular adaptation during pregnancy in these patients might suggest a possible higher risk for subsequent future cardiovascular disease. PMID: 26952308 [PubMed - as supplied by publisher]
Source: The Ultrasound Review of Obstetrics and Gynecology - March 8, 2016 Category: Radiology Authors: Valensise H, Farsetti D, Lo Presti D, Pisani I, Tiralongo GM, Gagliardi G, Vasapollo B, Novelli GP Tags: Ultrasound Obstet Gynecol Source Type: research

Preterm delivery and elevated maternal total vascular resistance: signs of suboptimal cardiovascular adaptation to pregnancy?
ConclusionsWomen with a diagnosis of TPD showing TVR values of > 1000 dynes × s/cm5 and elevated levels of CRP are at high risk of preterm delivery. An impaired maternal cardiovascular adaptation during pregnancy in these patients might suggest a possible higher risk for subsequent future cardiovascular disease. Copyright © 2016 ISUOG. Published by John Wiley & Sons Ltd.
Source: Ultrasound in Obstetrics and Gynecology - September 8, 2016 Category: Radiology Authors: H. Valensise, D. Farsetti, D. Lo Presti, I. Pisani, G. M. Tiralongo, G. Gagliardi, B. Vasapollo, G. P. Novelli Tags: Original Paper Source Type: research

Impaired Maternal Hemodynamics in Morbidly Obese Women: A Case –control Study
ConclusionThe findings of our study suggest that cardiac function is significantly altered in morbidly obese pregnant women. In order to make appropriate comparisons between individuals, it is imperative that hemodynamic parameters are indexed for BSA – as indeed they are in pediatric cardiology. The novel finding of a reduced CI in morbidly obese pregnant women may explain the predisposition to preeclampsia and other adverse outcomes in this population and warrants further investigation.
Source: Ultrasound in Obstetrics and Gynecology - February 1, 2017 Category: Radiology Authors: D. Vinayagam, J Gutierrez, J Binder, E Mantovani, B. Thilaganathan, A. Khalil Tags: Original Paper Source Type: research

Impaired Maternal Hemodynamics in Morbidly Obese Women: A Case-control Study.
CONCLUSION: The findings of our study suggest that cardiac function is significantly altered in morbidly obese pregnant women. In order to make appropriate comparisons between individuals, it is imperative that hemodynamic parameters are indexed for BSA - as indeed they are in pediatric cardiology. The novel finding of a reduced CI in morbidly obese pregnant women may explain the predisposition to preeclampsia and other adverse outcomes in this population and warrants further investigation. PMID: 28150433 [PubMed - as supplied by publisher]
Source: The Ultrasound Review of Obstetrics and Gynecology - February 1, 2017 Category: Radiology Authors: Vinayagam D, Gutierrez J, Binder J, Mantovani E, Thilaganathan B, Khalil A Tags: Ultrasound Obstet Gynecol Source Type: research

Effect of change in posture on maternal functional hemodynamics at 35 –37 weeks’ gestation
ConclusionsParadoxically, in late third trimester normal pregnancies both change from the supine to the sitting position and passive leg raising may result in increase in preload with consequent increase in cardiac index and stroke volume index and decrease in total peripheral resistance index. In pregnancies that develop PE or GH the effects of postural change on cardiovascular parameters are similar but less marked than in normotensive pregnancies.
Source: Ultrasound in Obstetrics and Gynecology - March 12, 2017 Category: Radiology Authors: Gavin P Guy, Hua Z Ling, Mirian Machuca, Liona C Poon, Kypros H Nicolaides Tags: Original Paper Source Type: research

Effect of change in posture on maternal functional hemodynamics at 35-37 weeks' gestation.
CONCLUSIONS: Paradoxically, in late third trimester normal pregnancies both change from the supine to the sitting position and passive leg raising may result in increase in preload with consequent increase in cardiac index and stroke volume index and decrease in total peripheral resistance index. In pregnancies that develop PE or GH the effects of postural change on cardiovascular parameters are similar but less marked than in normotensive pregnancies. PMID: 28294444 [PubMed - as supplied by publisher]
Source: The Ultrasound Review of Obstetrics and Gynecology - March 12, 2017 Category: Radiology Authors: Guy GP, Ling HZ, Machuca M, Poon LC, Nicolaides KH Tags: Ultrasound Obstet Gynecol Source Type: research

Effect of change in posture on maternal functional hemodynamics at 35 –37 weeks' gestation
ConclusionsParadoxically, in late third‐trimester normal pregnancy, both change from the supine to a sitting position and passive leg raising may result in an increase in preload with a consequent increase in cardiac and stroke volume indices and a decrease in total peripheral resistance index. In pregnancies that develop PE or GH, the effects of postural change on cardiovascular parameters are similar but less marked than in normotensive pregnancies. Copyright © 2017 ISUOG. Published by John Wiley & Sons Ltd.
Source: Ultrasound in Obstetrics and Gynecology - February 5, 2018 Category: Radiology Authors: G. P. Guy, H. Z. Ling, M. Machuca, L. C. Poon, K. H. Nicolaides Tags: Original Paper Source Type: research

Maternal hemodynamics, fetal biometry and Dopplers in pregnancies followed up for suspected fetal growth restriction.
CONCLUSIONS: In pregnancies with SGA fetuses there is decreased maternal cardiac output and stroke volume and increased peripheral vascular resistance and MAP and the deviations from normal are most marked in cases of redistribution in the fetal circulation and reduced amniotic fluid volume. PMID: 29607557 [PubMed - as supplied by publisher]
Source: The Ultrasound Review of Obstetrics and Gynecology - April 1, 2018 Category: Radiology Authors: Roberts LA, Ling HZ, Poon L, Nicolaides KH, Kametas NA Tags: Ultrasound Obstet Gynecol Source Type: research

Longitudinal hemodynamic evaluation of uncomplicated twin pregnancies according to chorionicity: physiological cardiovascular dysfunction in monochorionic twin pregnancy
CONCLUSIONS: Maternal cardiovascular function undergoes significant changes during an uncomplicated twin pregnancy and chorionicity influences maternal hemodynamics. In both twin pregnancies the hemodynamic changes are detected as early as the first trimester. In DC twin pregnancies the maternal hemodynamics remain stable during the rest of pregnancy. On the contrary, in MC twin pregnancies the rise in maternal CO continues in the second trimester to sustain the higher placental growth. There is a subsequent cross-over with a reduction in cardiovascular performance during the third trimester. This article is protected by c...
Source: The Ultrasound Review of Obstetrics and Gynecology - June 16, 2023 Category: Radiology Authors: D Farsetti F Pometti G P Novelli B Vasapollo A Khalil H Valensise Source Type: research