PMID: 8950732Jan 1, 1996Paper

Effects of Leboyer childbirth on left- and right systolic time intervals in healthy term neonates

Journal of Perinatal Medicine
M NelleO Linderkamp

Abstract

The Leboyer birth method requires that the newborn infant is placed on the mothers abdomen and the cord is clamped when it stops pulsating. Since late cord-clamping may result in marked hypervolemia and polycythemia of the neonate, we studied right and left ventricular systolic time intervals by means of pulsed-Doppler echocardiography. Left and right ventricular preejection periods (LPEP, RPEP), right time peak velocity (RTPV), left and right ventricular ejection times (LVET, RVET), and ratio of RTPV/RVET(c) corrected for heart rate were studied in 15 fullterm neonates with early (< 10s) cord clamping and in 15 fullterm neonates delivered according to Leboyer (cord clamping after 3 min) on day 1 (2-4 h after birth) and day 5. After Leboyer birth hematocrit was significantly increased on day 1 (0.61 +/- 0.06 vs. 0.53 +/- 0.07) and on day 5 (0.57 +/- 0.02 vs. 0.50 +/- 0.07). Blood pressure was similar in both groups and increased by about 10% from day 1 to day 5. LVET and RVET were not affected by the mode of placental transfusion, thereby suggesting normal left and right ventricular function after Leboyer birth. The LPEP/LVET (0.36 +/- 0.09 vs. 0.30 +/- 0.08) and RPEP/RVET ratio (0.41 +/- 0.11 vs. 0.33 +/- 0.08) were significan...Continue Reading

References

Apr 1, 1991·Archives of Disease in Childhood·J R SkinnerE N Hey
Jan 1, 1990·Archives of Disease in Childhood·N J Evans, L N Archer
Sep 6, 1969·Lancet·A C Yao, J Lind
May 1, 1970·Canadian Journal of Physiology and Pharmacology·J C Fouron, F Hébert
Mar 20, 1980·The New England Journal of Medicine·N M NelsonD L Sackett
Jul 1, 1994·Archives of Disease in Childhood. Fetal and Neonatal Edition·M NelleO Linderkamp
Jul 1, 1994·Archives of Disease in Childhood. Fetal and Neonatal Edition·V H MandelbaumO Linderkamp
Jul 1, 1993·American Journal of Obstetrics and Gynecology·M NelleO Linderkamp
Mar 1, 1993·Archives of Disease in Childhood·A B Gill, A M Weindling

❮ Previous
Next ❯

Citations

Jan 11, 2002·Journal of Midwifery & Women's Health·J S Mercer
Apr 25, 2000·Journal of Midwifery & Women's Health·J S MercerR L Skovgaard
Nov 4, 2006·BMJ : British Medical Journal·Patrick F van Rheenen, Bernard J Brabin
May 30, 2008·Seminars in Fetal & Neonatal Medicine·Jonathan Wyllie, Susan Niermeyer
Mar 15, 2006·Clinics in Perinatology·Nalini Singhal, Susan Niermeyer
Apr 21, 2007·Tropical Medicine & International Health : TM & IH·Patrick van RheenenBernard Brabin
Nov 19, 2014·Evidence-based Child Health : a Cochrane Review Journal·Susan J McDonaldPeter S Morris
Aug 1, 2015·Journal of Perinatology : Official Journal of the California Perinatal Association·C H BackesT M Hoffman
Oct 12, 2010·The Cochrane Database of Systematic Reviews·Rebecca J AireyLelia Duley
Mar 26, 2002·The Journal of Perinatal & Neonatal Nursing·Judith S Mercer, Rebecca L Skovgaard
Jul 12, 2013·The Cochrane Database of Systematic Reviews·Susan J McDonaldPeter S Morris
Jan 1, 2015·Maternal Health, Neonatology and Perinatology·Susan Niermeyer
Oct 30, 2004·Tropical Doctor·Musbah Omar EmhamedBernard J Brabin

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.