Noninvasive monitoring of placental oxygenation by near-infrared spectroscopy

American Journal of Perinatology
Jun KakogawaNaohiro Kanayama

Abstract

We evaluated the clinical usefulness of near-infrared spectroscopic quantitative measurement of placental oxygenation for the noninvasive estimation of uteroplacental function in pregnant women. We performed a prospective, observational clinical study. Women without complications (N = 15), women with threatened preterm delivery (TPD; N = 6), and women with intrauterine fetal growth restriction (IUGR; N = 6) were enrolled. Measurements of placental tissue oxygenation index (TOI) using the NIRO-300 (Hamamatsu Photonics, Hamamatsu City, Japan) were recorded. Mean TOI was 72.3 +/- 5.3% in women without complications, 72.9 +/- 5.6% in pregnant women with TPD, and 78.7 +/- 3.0% in pregnant women with IUGR. Mean TOI in pregnant women with IUGR was significantly higher than that of the other two groups (P < 0.05). In the IUGR group, although gestational age at measurement on admission was less than that made during hospitalization (P < 0.05), there were no differences in the TOI in relation to gestational age at measurement. Higher TOIs in pregnant women suggest decreased placental function. Monitoring the TOI by near-infrared spectroscopic quantitative measurement may have a high potential for clinical application, particularly in pre...Continue Reading

Citations

Dec 17, 2014·Seminars in Perinatology·W Tony Parks
Dec 17, 2014·The Journal of Obstetrics and Gynaecology Research·Kazunao SuzukiNaohiro Kanayama
Jun 12, 2013·Journal of Reproductive Immunology·Berthold HuppertzGerit Moser
Sep 27, 2018·The Journal of Maternal-fetal & Neonatal Medicine : the Official Journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians·Richard JonesLuca Lambertini
Nov 6, 2018·Hypertension in Pregnancy : Official Journal of the International Society for the Study of Hypertension in Pregnancy·Lauren J HeathJill M Norris
Jan 30, 2018·The Journal of Physiology·Gareth A NyePaul Brownbill
Oct 9, 2015·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Frank T SpradleyJoey P Granger
Nov 7, 2017·Birth Defects Research·W Tony Parks
Aug 31, 2021·Biomedical Optics Express·Thien NguyenAmir H Gandjbakhche
Sep 26, 2021·Experimental Neurology·Nickie Andescavage, Catherine Limperopoulos

❮ 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.