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Neonatal hemodynamics

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https://www.readbyqxmd.com/read/28521581/association-between-the-use-of-magnesium-sulfate-as-neuroprotector-in-prematurity-and-the-neonatal-hemodynamic-effects
#1
Rodrigo Dias Nunes, Flávia Duarte Schutz, Jefferson Luiz Traebert
PURPOSE: Cerebral palsy is often associated with prematurity and magnesium sulfate (MgSO4), has been used as neuroprotector, with favorable results. However, its mechanism of action has not been fully elucidated. This study aimed to evaluate the association between MgSO4 at the imminent premature delivery and neonatal hemodynamic effects. MATERIALS AND METHODS: A cross-sectional study involving 94 newborns (NB) between 24 and 32 weeks at a Brazilian hospital was performed...
May 19, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28509730/american-college-of-critical-care-medicine-clinical-practice-parameters-for-hemodynamic-support-of-pediatric-and-neonatal-septic-shock
#2
Alan L Davis, Joseph A Carcillo, Rajesh K Aneja, Andreas J Deymann, John C Lin, Trung C Nguyen, Regina S Okhuysen-Cawley, Monica S Relvas, Ranna A Rozenfeld, Peter W Skippen, Bonnie J Stojadinovic, Eric A Williams, Tim S Yeh, Fran Balamuth, Joe Brierley, Allan R de Caen, Ira M Cheifetz, Karen Choong, Edward Conway, Timothy Cornell, Allan Doctor, Marc-Andre Dugas, Jonathan D Feldman, Julie C Fitzgerald, Heidi R Flori, James D Fortenberry, Ana Lia Graciano, Bruce M Greenwald, Mark W Hall, Yong Yun Han, Lynn J Hernan, Jose E Irazuzta, Elizabeth Iselin, Elise W van der Jagt, Howard E Jeffries, Saraswati Kache, Chhavi Katyal, Niranjan Tex Kissoon, Alexander A Kon, Martha C Kutko, Graeme MacLaren, Timothy Maul, Renuka Mehta, Fola Odetola, Kristine Parbuoni, Raina Paul, Mark J Peters, Suchitra Ranjit, Karin E Reuter-Rice, Eduardo J Schnitzler, Halden F Scott, Adalberto Torres, Jacki Weingarten-Abrams, Scott L Weiss, Jerry J Zimmerman, Aaron L Zuckerberg
OBJECTIVES: The American College of Critical Care Medicine provided 2002 and 2007 guidelines for hemodynamic support of newborn and pediatric septic shock. Provide the 2014 update of the 2007 American College of Critical Care Medicine "Clinical Guidelines for Hemodynamic Support of Neonates and Children with Septic Shock." DESIGN: Society of Critical Care Medicine members were identified from general solicitation at Society of Critical Care Medicine Educational and Scientific Symposia (2006-2014)...
June 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28489637/pilot-study-comparing-closed-versus-open-tracheal-suctioning-in-postoperative-neonates-and-infants-with-complex-congenital-heart-disease
#3
Lyvonne N Tume, Paul B Baines, Rafael Guerrero, Margaret A Hurley, Robert Johnson, Atul Kalantre, Ram Ramaraj, Paul C Ritson, Laura Walsh, Philip D Arnold
OBJECTIVES: To determine the hemodynamic effect of tracheal suction method in the first 36 hours after high-risk infant heart surgery on the PICU and to compare open and closed suctioning techniques. DESIGN: Pilot randomized crossover study. SETTING: Single PICU in United Kingdom. PARTICIPANTS: Infants undergoing surgical palliation with Norwood Sano, modified Blalock-Taussig shunt, or pulmonary artery banding in the first 36 hours postoperatively...
May 9, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28487658/early-changes-in-glutamate-metabolism-and-perfusion-in-basal-ganglia-following-hypoxia-ischemia-in-neonatal-piglets-a-multi-sequence-3-0t-mr-study
#4
Yu-Xue Dang, Kai-Ning Shi, Xiao-Ming Wang
The excitotoxicity of glutamate metabolism as well as hemodynamic disorders of the brain are both risk factors for neonatal hypoxic-ischemic brain damage (HIBD). In the present study, changes in glutamate metabolism in the basal ganglia were detected by proton magnetic resonance spectroscopy ((1)H-MRS) at 0-6, 8-12, 24-30, and 48-60 h after the induction of hypoxia-ischemia (HI) in newborn piglets. Meanwhile, correlation analysis was performed by combining the microcirculatory perfusion informations acquired by intravoxel incoherent motion (IVIM) scan to explore their possible interaction mechanism...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28473717/safety-and-tolerance-of-propranolol-in-neonates-with-severe-infantile-hemangiomas-a-prospective-study
#5
Yi Ji, Siyuan Chen, Bo Xiang, Yang Yang, Liqing Qiu
Although the efficacy of propranolol for the treatment of infantile hemangiomas (IHs) has been well documented, there is a paucity of clinical data regarding the safety and tolerance of propranolol in neonates. A prospective study of 51 patients less than 30 days of age with severe IH was conducted. All patients were admitted to the hospital for monitoring during initial propranolol treatment at day 0 with dose adjustments at days 7 and 28. Heart rate (HR), systolic blood pressure (SBP), diastolic blood pressure (DBP), blood glucose (BG) levels and potential side effects were evaluated during treatment...
May 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28471089/transcatheter-closure-of-hemodynamic-significant-patent-ductus-arteriosus-in-32-premature-infants-by-amplatzer-ductal-occluder-additional-size-adoiias
#6
Patrice Morville, Ahmad Akhavi
OBJECTIVES: The advent of Amplatzer Duct Occluder II additional Size (ADOIIAS) provided the potential to close hemodynamic significant patent ductus arteriosus (HSPDA) and to analyze the feasibility, safety and efficacy of the device. BACKGROUND: Treatment of a patent ductus arteriosus (PDA) in very premature neonates is still a dilemma for the neonatalogist who has to consider its significance and has to choose among different treatment options. Because surgical ligation and medical therapy both have their drawbacks, interventional catheterization might provide an alternative means of closing HSPDA...
May 4, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28451389/effect-of-ephedrine-combined-with-bupivacaine-on-maternal-hemodynamic-and-spinal-nerve-block-in-cesarean-delivery
#7
Mingyue Ge, Sheng Wang, Zhigang Dai, Yan Li, Liping Xie, Xuejao Liu, Jiangwen Yin
The aim of the study was to investigate the effects of ephedrine intrathecal injection on maternal thermodynamics and spinal nerve block in cesarean section. A total of 107 patients undergoing elective cesarean section under combined spinal epidural anesthesia were randomly divided into two groups: group E: Bupivacaine (6 mg) combined with ephedrine (15 mg) and group C: Bupivacaine (6 mg). Systolic blood pressure (SBP), diastolic blood pressure (DBP), heart rate (HR), the incidence of hypotension, hypertension, tachycardia, nausea and vomiting were all recorded...
March 2017: Biomedical Reports
https://www.readbyqxmd.com/read/28441439/hemodynamics-and-gas-exchange-during-chest-compressions-in-neonatal-resuscitation
#8
Payam Vali, Praveen Chandrasekharan, Munmun Rawat, Sylvia Gugino, Carmon Koenigsknecht, Justin Helman, Bobby Mathew, Sara Berkelhamer, Jayasree Nair, Myra Wyckoff, Satyan Lakshminrusimha
PURPOSE: Current knowledge about pulmonary/systemic hemodynamics and gas exchange during neonatal resuscitation in a model of transitioning fetal circulation with fetal shunts and fluid-filled alveoli is limited. Using a fetal lamb asphyxia model, we sought to determine whether hemodynamic or gas-exchange parameters predicted successful return of spontaneous circulation (ROSC). METHODS: The umbilical cord was occluded in 22 lambs to induce asphyxial cardiac arrest...
2017: PloS One
https://www.readbyqxmd.com/read/28439520/relationship-between-relative-cerebral-blood-flow-relative-cerebral-blood-volume-and-relative-cerebral-metabolic-rate-of-oxygen-in-the-preterm-neonatal-brain
#9
Mina Nourhashemi, Guy Kongolo, Mahdi Mahmoudzadeh, Sabrina Goudjil, Fabrice Wallois
The mechanisms responsible for coupling between relative cerebral blood flow (rCBF), relative cerebral blood volume (rCBV), and relative cerebral metabolic rate of oxygen ([Formula: see text]), an important function of the microcirculation in preterm infants, remain unclear. Identification of a causal relationship between rCBF-rCBV and [Formula: see text] in preterms may, therefore, help to elucidate the principles of cortical hemodynamics during development. We simultaneously recorded rCBF and rCBV and estimated [Formula: see text] by two independent acquisition systems: diffuse correlation spectroscopy and near-infrared spectroscopy, respectively, in 10 preterms aged between 28 and 35 weeks of gestational age...
April 2017: Neurophotonics
https://www.readbyqxmd.com/read/28434547/stress-dose-corticosteroid-versus-placebo-in-neonatal-cardiac-operations-a-randomized-controlled-trial
#10
Pertti K Suominen, Juho Keski-Nisula, Tiina Ojala, Paula Rautiainen, Timo Jahnukainen, Johanna Hästbacka, Pertti J Neuvonen, Olli Pitkänen, Jussi Niemelä, Anu Kaskinen, Jukka Salminen, Risto Lapatto
BACKGROUND: Corticosteroids can improve the hemodynamic status of neonates with postoperative low cardiac output syndrome after cardiac operations. This study compared a prophylactically administered stress-dose corticosteroid (SDC) regimen against placebo on inflammation, adrenocortical function, and hemodynamic outcome. METHODS: Forty neonates undergoing elective open heart operations were randomized into two groups. The SDC group received perioperatively 2 mg/kg methylprednisolone, and 6 hours after the operation, a hydrocortisone infusion (0...
April 20, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28422424/pregnancy-outcomes-in-women-with-different-doses-of-corticosteroid-supplementation-during-labor-and-delivery
#11
Takao Owa, Kazuya Mimura, Aiko Kakigano, Shinya Matsuzaki, Keiichi Kumasawa, Masayuki Endo, Takuji Tomimatsu, Tadashi Kimura
AIM: The aim of this study was to report the pregnancy outcomes of women who received different doses of corticosteroid supplementation during labor and delivery. METHODS: We conducted a retrospective review of 102 pregnant women who received oral corticosteroid therapy, delivered at Osaka University Hospital, and were administered intravenous corticosteroid supplementation during labor and delivery. From January 2008 to May 2012, 47 women were administered a high dose of corticosteroids (HD group)...
April 19, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28412852/transitional-hemodynamics-in-infants-of-diabetic-mothers-by-targeted-neonatal-echocardiography-electrocardiography-and-peripheral-flow-study
#12
Ingrid Anne Mandy Schierz, Giuseppa Pinello, Ettore Piro, Mario Giuffrè, Simona La Placa, Giovanni Corsello
OBJECTIVE: Metabolic alterations of intrauterine environment in diabetes mellitus (DM) lead to fetal cardiac dysfunctions that can persist after birth. The aim of the study was to assess the cardiovascular adaptation in infants born to diabetic mothers (IDM) with different degrees of glycometabolic control, in relation to revised guidelines for diagnosis of DM and quality improvements in neonatal care. MATERIALS AND METHODS: An observational case-control study was conducted on IDM with gestational, type 1 and type 2 DM...
May 5, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28412849/maternal-hemodynamic-changes-and-predictors-of-poor-obstetric-outcome-in-women-with-rheumatic-heart-disease-a-five-year-observational-study
#13
Mohamed Rezk, Osama Elkelani, Abdelhamid Shaheen, Awni Gamal, Hassan Badr
OBJECTIVE: to assess prospectively the maternal cardiovascular hemodynamic changes and obstetric outcome in women with rheumatic heart disease (RHD) and to detect predictors of poor outcome. METHODS: This prospective observational study included 204 pregnant patients with RHD who were divided into two groups; successful pregnancy group with living fetus (n = 126) and poor obstetric outcome group with fetal or neonatal loss (n = 78). Hemodynamic changes, maternal and fetal outcome were assessed and recorded...
April 16, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28409759/influence-of-central-hemodynamics-on-vv-ecmo-oxygen-delivery-in-neonatal-animal-model
#14
M M Said, O Rivera, G T Mikesell, K Rais-Bahrami
BACKGROUND: Recirculation of oxygenated blood in venovenous extracorporeal membrane oxygenation (VV ECMO) can decrease the oxygen delivery provided by the ECMO support. This study investigated the influence of central hemodynamics and catheter position on the amount of recirculation and oxygen delivery during VV ECMO. METHODS: Recirculation was measured in seven newborn lambs (mean weight 4.7 kg) during VV ECMO using the ELSA Monitor (Transonic Systems, Inc., Ithaca, NY) and using the central venous line (CVL) method...
2017: Journal of Neonatal-perinatal Medicine
https://www.readbyqxmd.com/read/28403927/relevance-of-routine-doppler-sampling-at-the-two-umbilical-arteries-in-the-follow-up-of-dichorionic-twin-pregnancies-with-intrauterine-growth-restricted-fetuses
#15
A J Vivanti, E Lecarpentier, A-G Cordier, F Proulx, V Tsatsaris, A Benachi
OBJECTIVE: The aim of this study is to assess if the presence of bilateral absent or reverse end-diastolic velocity (AREDV) indicates a poorer prognosis than unilateral AREDV in dichorionic-diamniotic twin pregnancies complicated by intrauterine growth restriction. METHODS: A prospective observational study of 36 dichorionic-diamniotic twin pregnancies complicated by intrauterine growth restriction. One hundred and fifty seven ultrasound (US) examinations were performed...
March 2017: J Gynecol Obstet Hum Reprod
https://www.readbyqxmd.com/read/28403044/comparing-first-and-second-year-palivizumab-prophylaxis-in-patients-with-hemodynamically-significant-congenital-heart-disease-in-the-caress-database-2005-2015
#16
MULTICENTER STUDY
Abby Li, Daniel Y Wang, Krista L Lanctôt, Ian Mitchell, Bosco A Paes
BACKGROUND: Respiratory syncytial virus hospitalization (RSVH) rates in children <2 years of age with hemodynamically significant congenital heart disease (HSCHD) are 2- to 4-fold higher compared with healthy term infants. Pediatric recommendations differ as to whether palivizumab is beneficial beyond 1 year of age. The objective of this study was to determine whether differences exist in respiratory-related illness hospitalization (RIH) and RSVH in HSCHD infants receiving palivizumab during the first year versus second year of life in the Canadian Registry of Palivizumab...
May 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28397410/building-a-better-neonatal-extracorporeal-life-support-circuit-comparison-of-hemodynamic-performance-and-gaseous-microemboli-handling-in-different-pump-and-oxygenator-technologies
#17
Kristen Glass, Payal Trivedi, Shigang Wang, Karl Woitas, Allen R Kunselman, Akif Ündar
Neurologic complications during neonatal extracorporeal life support (ECLS) are associated with significant morbidity and mortality. Gaseous microemboli (GME) in the ECLS circuit may be a possible cause. Advances in neonatal circuitry may improve hemodynamic performance and GME handling leading to reduction in patient complications. This study compared hemodynamic performance and GME handling using two centrifugal pumps (Maquet RotaFlow and Medos Deltastream DP3) and polymethylpentene oxygenators (Maquet Quadrox-iD and Medos Hilite 800LT) in a neonatal ECLS circuit model...
April 2017: Artificial Organs
https://www.readbyqxmd.com/read/28384837/the-impact-of-integrated-evaluation-of-hemodynamics-on-management-of-preterm-infants-with-late-onset-compromised-systemic-circulation
#18
Reem Amer, Reem Kalash, Mary M Seshia, Yasser N Elsayed
Objectives To study the impact of integrated evaluation of hemodynamics (IEH), using targeted neonatal echocardiography (TNE), cerebral regional tissue oxygenation (crRTO), and fractional oxygen extraction (FOE), using near-infrared spectroscopy (NIRS) on the management of infants with late-onset compromised systemic circulation (LCSC), and evaluation of the hemodynamic characteristics. Study Design Retrospective cohort study comparing infants with LCSC who underwent IEH (April 2014 to May 2016) with an earlier EPOCH who did not undergo IEH (January 2012 to March 2014)...
April 6, 2017: American Journal of Perinatology
https://www.readbyqxmd.com/read/28383430/timing-of-surgical-ligation-and-morbidities-in-very-low-birth-weight-infants
#19
COMPARATIVE STUDY
YoungAh Youn, Cheong-Jun Moon, Jae-Young Lee, Cheul Lee, In Kyung Sung
The present study examined whether early patent ductus arteriosus (PDA) surgical ligation at ≤2 weeks of life was associated with increased morbidities and mortality in very low birth weight infants (VLBWIs) who were diagnosed with hemodynamically significant (hs) PDA. Between December 2013 and December 2015, a total of 407 VLBWIs were admitted, of whom 145 (35.6%) infants were diagnosed with an hs PDA. The clinical data for these infants were retrospectively collected for analysis. Among the 145 VLBWIs with an hs PDA, 58 (40%) infants had surgical ligation for PDA; of these, 29 (50%) infants had early ligation (EL; ligation at ≤2 weeks of life) and 29 (50%) infants had late ligation (LL; ligation at ≥2 weeks of life)...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28382440/tetralogy-of-fallot-surgical-repair-shunt-configurations-ductus-arteriosus-and-the-circle-of-willis
#20
Senol Piskin, Gozde Unal, Ahmet Arnaz, Tayyar Sarioglu, Kerem Pekkan
In this study, hemodynamic performance of three novel shunt configurations that are considered for the surgical repair of tetralogy of Fallot (TOF) disease are investigated in detail. Clinical experience suggests that the shunt location, connecting angle, and its diameter can influence the post-operative physiology and the neurodevelopment of the neonatal patient. An experimentally validated second order computational fluid dynamics (CFD) solver and a parametric neonatal diseased great artery model that incorporates the ductus arteriosus (DA) and the full patient-specific circle of Willis (CoW) are employed...
April 5, 2017: Cardiovascular Engineering and Technology
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