John Smoleniec

ORCID: 0000-0003-4909-3634
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About
Contact & Profiles
Research Areas
  • Prenatal Screening and Diagnostics
  • Parvovirus B19 Infection Studies
  • Assisted Reproductive Technology and Twin Pregnancy
  • Blood groups and transfusion
  • Pregnancy and preeclampsia studies
  • Congenital Diaphragmatic Hernia Studies
  • Dermatological and COVID-19 studies
  • Fetal and Pediatric Neurological Disorders
  • Neuroscience of respiration and sleep
  • Congenital Heart Disease Studies
  • Gastrointestinal disorders and treatments
  • Genetic Syndromes and Imprinting
  • Appendicitis Diagnosis and Management
  • Erythrocyte Function and Pathophysiology
  • Neonatal Respiratory Health Research
  • Neonatal and fetal brain pathology
  • Tumors and Oncological Cases
  • Neonatal Health and Biochemistry
  • Maternal and Perinatal Health Interventions
  • Congenital Anomalies and Fetal Surgery
  • Maternal and fetal healthcare
  • Effects and risks of endocrine disrupting chemicals
  • Obstructive Sleep Apnea Research
  • Birth, Development, and Health
  • Genomic variations and chromosomal abnormalities

Liverpool Hospital
2009-2025

UNSW Sydney
2001-2025

Jagiellonian University
2024-2025

South Western Sydney Local Health District
2014-2025

Ingham Institute
2016-2025

Leiden University Medical Center
2024

Royal Hospital for Women
2014

Children's Hospital at Westmead
2009

Sydney Children's Hospital
2009

John Hunter Hospital
2009

In early-onset severe hemolytic disease of the fetus and newborn (HDFN), transplacental transfer maternal antierythrocyte IgG alloantibodies causes fetal anemia that leads to use high-risk intrauterine transfusions in order avoid hydrops death. Nipocalimab, an anti-neonatal Fc receptor blocker, inhibits lowers levels.

10.1056/nejmoa2314466 article EN New England Journal of Medicine 2024-08-07

Optimal breastfeeding has benefits for the mother-infant dyads. This study investigated prevalence and determinants of cessation exclusive (EBF) in early postnatal period a culturally linguistically diverse population Sydney, New South Wales, Australia. The used routinely collected perinatal data on all live births 2014 (N = 17,564) public health facilities two Local Health Districts mother's intention, skin-to-skin contact, EBF at birth, discharge (1–4 weeks postnatal) were estimated....

10.1186/s13006-017-0110-4 article EN cc-by International Breastfeeding Journal 2016-12-01

(Abstracted from N Engl J Med 2024;391:526–537) Severe hemolytic disease of the fetus and newborn (HDFN) is result a transplacental transfer maternal IgG alloantibodies, which can cause fetal anemia. Early-onset severe HDFN occurs at ≤24 weeks gestation.

10.1097/01.ogx.0001108076.09984.93 article EN Obstetrical & Gynecological Survey 2025-02-01

Background Obstructive sleep apnea (OSA) is a common disorder, and in pregnancy, it associated with an increased risk of complications, including gestational diabetes mellitus preeclampsia. Supine may worsen OSA, stillbirth due to effects on fetomaternal blood flow. Continuous positive airway pressure (CPAP) therapy considered the gold-standard treatment for moderate severe although compliance frequently poor; positional (PT) generally less effective than CPAP nonpregnant patients but be...

10.2196/51434 article EN cc-by JMIR Research Protocols 2025-04-11

To audit the outcome for laser photocoagulation twin-twin transfusion syndrome (TTTS) as managed by New South Wales Fetal Therapy Centre (NSW FTC).A retrospective cohort study. Outcome data were reviewed referrals between June 2003 and 2008.The measures included severity of TTTS at presentation, delivery details (gestational age delivery, birth weight Apgar score 5 min) perinatal (spontaneous miscarriage, premature rupture membranes, intrauterine death, placental abruption neonatal...

10.1111/j.1479-828x.2009.01127.x article EN Australian and New Zealand Journal of Obstetrics and Gynaecology 2010-03-17

10.1016/0002-9378(92)91624-j article EN American Journal of Obstetrics and Gynecology 1992-05-01

Abstract Prenatal diagnosis of congenital lobar emphysema is rarely reported in the literature. This case presents a fetus with an echogenic lung diagnosed at 18 weeks' gestation, that resolved completely during pregnancy. unique sonographic increased echogenicity was first noted gestation and had disappeared by 29 gestation. The made postnatal period as result follow up prenatal findings. reinforces importance continuing investigations abnormalities even when they appear to have...

10.1046/j.1469-0705.2001.00337.x article EN Ultrasound in Obstetrics and Gynecology 2001-02-01

10.1111/j.1471-0528.1994.tb13586.x article EN BJOG An International Journal of Obstetrics & Gynaecology 1994-12-01

To determine, by expert consensus, the essential substeps of fetoscopic laser surgery (FLS) for twin-twin transfusion syndrome (TTTS) that could be used to create an authority-based curriculum training in this procedure among fetal medicine specialists.A Delphi survey was conducted international panel experts (n = 98) FLS. Experts rated FLS on a five-point Likert-type scale indicate whether they considered them essential, and were able comment each substep, using dedicated online platform...

10.1002/uog.14761 article EN Ultrasound in Obstetrics and Gynecology 2014-12-11

Twenty-eight cases of fetal hydrops are reported. A diverse aetiology was found. Fetal therapy undertaken in 12 (42.9%). The overall survival rate 36.8% (excluding elective terminations). However, when normal fetuses presenting from 20 weeks were considered, the 64%. results combined with those two other studies (making a total 182 hydrops) to ascertain value pleural effusions predicting outcome such cases. In 143 that did not end therapeutic termination pregnancy, predicted death (fetal or...

10.1159/000264213 article EN Fetal Diagnosis and Therapy 1995-01-01

We present two cases of proteinuric hypertension in the early second trimester pregnancy, associated with partial mole and triploidy karyotyping. This demonstrates complementary nature ultrasound diagnosis management this rare association.

10.1111/j.1479-828x.2000.tb01152.x article EN Australian and New Zealand Journal of Obstetrics and Gynaecology 2000-05-01

Vulvovaginal candidiasis during pregnancy is common, but serious complications, including chorioamnionitis, are infrequent. A 41-year-old woman presented at 37 weeks of gestation with reduced fetal movements, and death in utero was subsequently confirmed on ultrasound. Histopathology the cord placenta revealed Candida infection microabscesses umbilical cord. Overall, these features suggestive ascending infection, consistent as causative organism. To best our knowledge, this first reported...

10.1016/j.crwh.2020.e00239 article EN cc-by-nc-nd Case Reports in Women s Health 2020-07-01

Objective To audit immediate pregnancy and neonatal outcomes of selective laser photocoagulation communicating vessels (SLPCV) for twin–twin transfusion syndrome (TTTS) at the New South Wales Fetal Therapy Centre. Methods Retrospective cohort study 151 TTTS cases undergoing SLPCV between July 2003 May 2013, evaluating procedural details, delivery perinatal outcomes. Results The majority were Stage III (56.9%), although proportion II increased over time (P = 0.03). Survival to hospital...

10.1111/ajo.12464 article EN Australian and New Zealand Journal of Obstetrics and Gynaecology 2016-03-31

Intestinal lymphangiectasia and other abnormalities of lymphatic drainage from the gastrointestinal tract result in protein-losing enteropathy. Recently, hypoplasia intestinal lymphatics has been described as an additional cause enteropathy presenting infancy. We report case a child, with features consistent hypoplasia, whom non-immune hydrops, requiring repeated intervention, was detected at 18 weeks' gestation who developed post-natally. CASE REPORT Antenatal History This 26-year-old...

10.1097/00005176-200211000-00020 article EN Journal of Pediatric Gastroenterology and Nutrition 2002-11-01

A case of isoimmunisation in pregnancy caused by antibodies to the Kpa red blood cell antigen is described. The preceding had resulted fetal hydrops for which no cause was found as antibody screening cells used investigate were negative. This emphasises importance serological at a reference laboratory low frequency antigens before diagnosis non-immune made.

10.1136/fn.71.3.f216 article EN Archives of Disease in Childhood Fetal & Neonatal 1994-11-01

A case is reported where fetal hydrops was noted 10 days after an initial observation of intermittent tachycardia at 31 weeks. diagnosis supraventricular made and a successful conversion to sinus rhythm achieved with maternally administered flecainide, subsequent resolution the hydrops. The fetus required no further treatment in pregnancy or follow up. mother suffered side effects treatment.

10.1136/adc.66.10_spec_no.1160 article EN Archives of Disease in Childhood 1991-10-01
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