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ductus arteriosus

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https://www.readbyqxmd.com/read/29777040/obe022-an-oral-and-selective-prostaglandin-f2%C3%AE-receptor-antagonist-as-an-effective-and-safe-modality-for-the-treatment-of-preterm-labor
#1
Oliver Pohl, Andre Chollet, Sung Hye Kim, Lucia Riaposova, Francois Spezia, Frederic Gervais, Philippe Guillaume, Philippe Lluel, Murielle Meen, Frederique Lemaux, Vasso Terzidou, Phillip R Bennett, Jean-Pierre Gotteland
Preterm birth is the major challenge in obstetrics affecting ~10% of pregnancies. Pan-prostaglandin synthesis inhibitors (NSAID) prevent preterm labor and prolong pregnancy but raise concerns about fetal renal and cardiovascular safety. We conducted preclinical studies examining the tocolytic effect and fetal safety of the oral prodrug candidate OBE022 and its parent OBE002, both potent and highly selective antagonist of the contractile PGF2α prostaglandin receptor (FP). Efficacy of OBE022 and OBE002, alone and in combination with other tocolytics, was assessed in human tissues and pregnant animal models for inhibition of uterine contraction and delay of parturition...
May 18, 2018: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/29762087/genomics-and-epigenomics-of-congenital-heart-defects-expert-review-and-lessons-learned-in-africa
#2
Nicholas Ekow Thomford, Kevin Dzobo, Nana Akyaa Yao, Emile Chimusa, Jonathan Evans, Emmanuel Okai, Paul Kruszka, Maximilian Muenke, Gordon Awandare, Ambroise Wonkam, Collet Dandara
Congenital heart defects (CHD) are structural malformations found at birth with a prevalence of 1%. The clinical trajectory of CHD is highly variable and thus in need of robust diagnostics and therapeutics. Major surgical interventions are often required for most CHDs. In Africa, despite advances in life sciences infrastructure and improving education of medical scholars, the limited clinical data suggest that CHD detection and correction are still not at par with the rest of the world. But the toll and genetics of CHDs in Africa has seldom been systematically investigated...
May 2018: Omics: a Journal of Integrative Biology
https://www.readbyqxmd.com/read/29755086/-total-arch-replacement-with-concomitant-thoracic-endovascular-aortic-repair-via-the-ascending-aorta-for-extended-thoracic-aneurysm-report-of-a-case
#3
Yoshiki Endo, Yoshihito Irie, Kousuke Nishida, Tsuyoshi Fujimiya, Yoshiaki Katada
The patient was a 66 year-old male. Computed tomography (CT) angiography showed a huge aneurysm(120 mm) in the aortic arch and chronic type B aortic dissection(45 mm) in the descending aorta. Echocardiography showed patent ductus arteriosus( PDA). Because of pulmonary hypertension due to PDA, it was considered unacceptable to put him under general anesthesia twice. We performed thoracic endovascular aortic repair (TEVAR) via the ascending aorta and total arch replacement (TAR) simultaneously to prevent paraplegia...
May 2018: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/29754023/closure-time-of-ductus-arteriosus-after-birth-based-on-survival-analysis
#4
Satoru Iwashima, Eichirou Satake, Hiroki Uchiyama, Keigo Seki, Takamichi Ishikawa
OBJECTIVES: The correct ductus arteriosus (DA) closure time is somewhere between the opening and closing time confirmed on echo, not on examination. We investigated DA closure time and factors affecting DA closure time using interval censoring analysis. METHODS: This was an observational, retrospective study including 2611 healthy neonates. Echo was performed every 12-24 h after birth until DA closure. We investigated the DA closure time using interval censoring analysis...
May 10, 2018: Early Human Development
https://www.readbyqxmd.com/read/29752171/association-between-furosemide-exposure-and-patent-ductus-arteriosus-in-hospitalized-infants-of-very-low-birth-weight
#5
Elizabeth J Thompson, Rachel G Greenberg, Karan Kumar, Matthew Laughon, P Brian Smith, Reese H Clark, Andromeda Crowell, Layla Shaw, Louis Harrison, Gabrielle Scales, Nicole Bell, Christoph P Hornik
OBJECTIVE: To evaluate the association between furosemide exposure and patent ductus arteriosus (PDA) in a large, contemporary cohort of hospitalized infants with very low birth weight (VLBW). STUDY DESIGN: Using the Pediatrix Medical Group Clinical Data Warehouse, we identified all inborn infants of VLBW <37 weeks of gestation discharged from the neonatal intensive care unit after the first postnatal week from 2011 to 2015. We defined PDA as any medical (ibuprofen or indomethacin) or surgical PDA therapy...
May 8, 2018: Journal of Pediatrics
https://www.readbyqxmd.com/read/29747617/pheochromocytoma-as-a-rare-cause-of-hypertension-in-a-46-x-i-x-q10-turner-syndrome-a-case-report-and-literature-review
#6
Ji Yeon Shin, Bo Hyun Kim, Young Keum Kim, Tae Hwa Kim, Eun Heui Kim, Min Jin Lee, Jong Ho Kim, Yun Kyung Jeon, Sang Soo Kim, In Joo Kim
BACKGROUND: Cardiovascular disease (CVD) presents the most serious health problems and contributes to the increased mortality in young women with Turner syndrome. Arterial hypertension in Turner syndrome patients is significantly more prevalent than that in a general age-matched control group. The aetiology of hypertension in Turner syndrome varies, even in the absence of cardiac anomalies and obvious structural renal abnormalities. Pheochromocytoma is an extremely rare cause among various etiologies for hypertension in patients with Turner syndrome...
May 10, 2018: BMC Endocrine Disorders
https://www.readbyqxmd.com/read/29742969/perioperative-and-anesthetic-considerations-in-interrupted-aortic-arch
#7
Nelson Burbano-Vera, Katherine L Zaleski, Gregory J Latham, Viviane G Nasr
Interrupted aortic arch (IAA) is defined as the loss of luminal continuity between the ascending and descending aorta and is classified based on the anatomic level of interruption. IAA is associated with a number of intracardiac anomalies with the most common being patent ductus arteriosus, ventricular septal defect, and left ventricular outflow obstruction. There is also a strong association between type B interruption and 22q11 deletion syndrome. The perioperative management of the neonate with IAA begins in the intensive care unit with optimization of end-organ perfusion and function...
May 1, 2018: Seminars in Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/29739367/impact-of-umbilical-cord-milking-and-pasteurized-donor-human-milk-on-necrotizing-enterocolitis-a-retrospective-review
#8
Mehtab K Sekhon, Bradley A Yoder
BACKGROUND: Necrotizing enterocolitis (NEC) is a serious complication of prematurity. Our objective was to evaluate the impact of an umbilical cord milking protocol (UCM) and pasteurized donor human milk (PDHM) on NEC rates in infants less than 30 weeks gestational age from January 1, 2010 to September 30, 2016. We hypothesized an incremental decrease in NEC after each intervention. METHODS: We performed a retrospective review of 638 infants born less than 30 weeks gestational age...
May 8, 2018: BMC Pediatrics
https://www.readbyqxmd.com/read/29736973/aberrant-right-subclavian-artery-causing-megaoesophagus-in-three-cats
#9
F Cinti, D Della Santa, S Borgonovo, R Bussadori, D Troiano, G Pisani
Three entire, domestic, shorthair male cats (age range: 3 months to 5 years) were referred because of regurgitation. Megaoesophagus attributable to aberrant right subclavian artery, originating from the aorta at the level of the fourth intercostal space, was diagnosed in all cats using thoracic radiography and CT angiography. One cat had concurrent patent ductus arteriosus with a normal aortic arch. Three-dimensional volume-rendered CT images were used to assess the malformations and to plan surgery for the treatment of the vascular anomalies...
May 7, 2018: Journal of Small Animal Practice
https://www.readbyqxmd.com/read/29730050/hemodynamic-assessment-of-the-patent-ductus-arteriosus-beyond-ultrasound
#10
REVIEW
M Kluckow, P Lemmers
Assessment and management of a patent ductus arteriosus (PDA) in premature infants remains problematic. The more immature the infant, the more likely a PDA is to be present, due to lower spontaneous PDA closure rates. Clinicians now recognize that not all PDAs require treatment and that selection of the group of infants with a more hemodynamically relevant PDA, often manifesting as an increasing systemic-to-pulmonary shunt, is increasingly important. Ultrasound is the mainstay of diagnosis and physiological assessment of the PDA; however, there are other methodologies used to assess hemodynamic importance of the PDA...
April 27, 2018: Seminars in Fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29726010/lower-versus-higher-oxygen-concentrations-titrated-to-target-oxygen-saturations-during-resuscitation-of-preterm-infants-at-birth
#11
REVIEW
Kei Lui, Lisa J Jones, Jann P Foster, Peter G Davis, See Kwee Ching, Ju Lee Oei, David A Osborn
BACKGROUND: Initial resuscitation with air is well tolerated by most infants born at term. However, the optimal fractional inspired oxygen concentration (FiO2 - proportion of the breathed air that is oxygen) targeted to oxygen saturation (SpO2 - an estimate of the amount of oxygen in the blood) for infants born preterm is unclear. OBJECTIVES: To determine whether lower or higher initial oxygen concentrations, when titrated according to oxygen saturation targets during the resuscitation of preterm infants at birth, lead to improved short- and long-term mortality and morbidity...
May 4, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29720916/evaluation-of-timing-and-dosing-of-caffeine-citrate-in-preterm-neonates-for-the-prevention-of-bronchopulmonary-dysplasia
#12
Eleni E Shenk, Deborah S Bondi, Matthew M Pellerite, Sudhir Sriram
OBJECTIVE: The aim of this study was to evaluate the timing and dosing of caffeine therapy in relation to the development of bronchopulmonary dysplasia (BPD). METHODS: This was a single-center, retrospective cohort study comparing early (days of life 0-2) to late (day of life 3 or greater) caffeine initiation in extremely low birth weight neonates, with a secondary analysis of large (10 mg/kg/day) to small dose (5 mg/kg/day) caffeine. RESULTS: There were 138 patients in the primary timing analysis...
March 2018: Journal of Pediatric Pharmacology and Therapeutics: JPPT: the Official Journal of PPAG
https://www.readbyqxmd.com/read/29716712/contemporary-outcomes-of-percutaneous-closure-of-patent-ductus-arteriosus-in-adolescents-and-adults
#13
Sudhakar P, John Jose, Oommen K George
BACKGROUND: Catheter based treatment has gained wide acceptance for management of patent ductus arteriosus (PDA) ever since its introduction. Percutaneous closure in adults can be challenging because of anatomical factors including large sizes, associated pulmonary arterial hypertension (PAH) and co-morbidities. This study aimed to provide comprehensive contemporary data on the safety and efficacy of percutaneous device closure of PDA in adult and adolescent population at a large referral center...
March 2018: Indian Heart Journal
https://www.readbyqxmd.com/read/29716434/effect-of-sildenafil-on-pulmonary-circulation-and-cardiovascular-function-in-near-term-fetal-sheep-during-hypoxemia
#14
Amarnath Bhide, Leena Alanne, Juha Rasanen, Heikki Huhta, Juulia Junno, Merja Kokki, Tiina Erkinaro, Pasi Ohtonen, Mervi Haapsamo, Ganesh Acharya
Sildenafil is a potential new treatment for placental insufficiency in human pregnancies as it reduces the breakdown of vasodilator nitric oxide. Pulmonary vasodilatation is observed in normoxemic fetuses following sildenafil administration. Placental insufficiency often leads to fetal hypoxemia that can cause pulmonary vasoconstriction and fetal cardiac dysfunction as evidenced by reduced isovolumic myocardial velocities. We tested the hypotheses that sildenafil, when given directly to the hypoxemic fetus, reverses reactive pulmonary vasoconstriction, increases left ventricular cardiac output by increasing pulmonary venous return, and ameliorates hypoxemic myocardial dysfunction...
January 1, 2018: Reproductive Sciences
https://www.readbyqxmd.com/read/29710737/cerebral-glucose-deficiency-versus-oxygen-deficiency-in-neonatal-encephalopathy
#15
A M Rudolph
Hypoxic-ischemic encephalopathy (HIE) in newborn infants is generally considered to result from decreased arterial oxygen content or cerebral blood flow. Cerebral injury similar to that of HIE has been noted with hypoglycemia. Studies in fetal lambs have shown that ventilation with 3% oxygen did not change cerebral blood flow, but ventilation with 100% oxygen resulted in marked reduction in cerebral blood flow, glucose delivery and glucose consumption. Blood glucose concentration falls markedly after birth; this, associated with the fall in cerebral blood flow, greatly reduces glucose supply to the brain...
April 24, 2018: Journal of Neonatal-perinatal Medicine
https://www.readbyqxmd.com/read/29707375/transcatheter-closure-of-a-large-patent-ductus-arteriosus-using-jugular-access-in-an-infant
#16
Precylia Fernandes, Anass Assaidi, Alban-Elouen Baruteau, Alain Fraisse
Trans-catheter device closure of patent ductus arteriosus (PDA) via femoral route is the commonly used, safe and effective procedure. Trans-jugular approach has been successfully used in older children with interrupted inferior vena cava. We report a case of successful occlusion of PDA using Amplatzer duct occluder (ADO) via trans-jugular approach following difficulties encountered in gaining femoral venous access. A 6-month-old male infant, weighing 8 kg was admitted for percutaneous catheter closure of PDA...
March 2018: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29695206/efficacy-and-safety-of-oral-paracetamol-versus-oral-ibuprofen-for-closure-of-patent-ductus-arteriosus-in-preterm-infants-a-randomized-controlled-trial
#17
Rania A El-Farrash, Mohammed S El Shimy, Abeer S El-Sakka, Manal G Ahmed, Dina G Abdel-Moez
OBJECTIVE: To evaluate the efficacy and safety of oral paracetamol versus oral ibuprofen in the treatment of hemodynamically significant patent ductus arteriosus (hsPDA) in preterm infants. STUDY DESIGN: An interventional randomized case-control study, registered in ClinicalTrials.gov ( NCT03265782 ), was conducted on 60 preterm infants with gestational age ≤ 34 weeks, postnatal age of 2-7 days and color Doppler echocardiographic evidence of hsPDA. Neonates were randomly assigned to two groups; 30 received oral ibuprofen and 30 received oral paracetamol...
April 25, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29695022/catheter-related-arterial-thrombosis-in-neonates-and-children-a-systematic-review
#18
Mattia Rizzi, Neil Goldenberg, Mariana Bonduel, Shoshana Revel-Vilk, Ernest Amankwah, Manuela Albisetti
Catheter-related arterial thrombosis (CAT) is increasingly recognized in children. Available data are scarce and based on expert opinions. This systematic review aimed to identify knowledge on paediatric CAT. Among 3,484 publications, 22 met inclusion criteria. Fourteen reported on CAT due to umbilical arterial catheter (UAC), two to extremity indwelling catheter (EIC), one to both and five to cardiac catheter (CC). The overall cumulative incidence of CAT was 21% (95% confidence interval [CI], 13-31) with a relative incidence of 20% (95% CI, 10-33) for UAC and 11% (95% CI, 3-21) for CC-related CAT...
April 25, 2018: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/29684371/repair-of-ductus-or-hemi-truncus-to-one-lung-and-major-aortopulmonary-collaterals-to-the-other-lung
#19
Richard D Mainwaring, Tatiana R Rosenblatt, William L Patrick, Michael Ma, Lynn Peng, Frank L Hanley
BACKGROUND: There are patients born with pulmonary atresia and a ductus arteriosus or hemi-truncus to one lung and major aortopulmonary collateral arteries (MAPCAs) to the contralateral lung. The purpose of this study was to review our surgical results for this relatively rare subset of patients. METHODS: This was a retrospective review of 35 patients with ductus/hemi-truncus in association with pulmonary atresia with ventricular septal defect and MAPCAs. Our surgical algorithm is bifurcated into two strategies: 1) patients with "favorable" MAPCAs are candidates for single stage complete repair, and 2) patients with "unfavorable" MAPCAs undergo a staged approach...
April 20, 2018: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29683802/a-study-of-familial-char-syndrome-involving-the-tfap2b-gene-with-a-focus-on-facial-shape-characteristics
#20
Daniel Nyboe, Sven Kreiborg, Tron Darvann, Morten Dunø, Kamilla R Nissen, Hanne B Hove
In this case study, we investigate a child presenting with patent ductus arteriosus, short philtrum, duck-bill lips, strabismus, a flat nasal bridge, a broad forehead, low-set ears, hypertelorism, up-slanting palpebral fissures, almond-shaped eyes, and hypodontia, all leading to the clinical diagnosis of Char syndrome. Genetic analysis showed heterozygosity for the novel variant c.851T>C, p. Leu284Ser in the TFAP2B gene. Family analysis suggested that at least 20 members, extending six generations back, were affected...
April 20, 2018: Clinical Dysmorphology
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