Electrohysterogram: study of the electromechanical activity of the uterus in humans

European Journal of Obstetrics, Gynecology, and Reproductive Biology
A Shafik

Abstract

The electromechanical activity of the uterus was studied in 18 healthy women (mean age 38.3+/-14.2 SD years; 8 were nulliparous, 10 multiparous) aiming at characterizing a normal electrohysterogram. Two monopolar silver-silver chloride electrodes were applied to the uterine and one to the cervical mucosa. The uterine pressure was measured by a water-perfused tube connected to a pressure transducer. Monophasic, negatively deflected slow waves or pacesetter potentials (PPs) were recorded from the 2 uterine electrodes. They had regular rhythm and exhibited the same frequency, amplitude and velocity of conduction by the 2 electrodes. The PPs were followed randomly by bursts of action potentials (APs). The APs and not the PPs were associated with uterine pressure rise. PPs from the cervix were registered only occasionally. The occurrence of the electric activity is believed to depend on the smooth muscle fibers content which is high in the uterine body and meagre in the cervix. The APs seem to have contractile activity which might act to sweep away the uterine secretions. According to the uterocervical reflex, the cervix dilates upon uterine contractions. A normal electrohysterogram could be characterized. It might show a different ...Continue Reading

References

Jul 1, 1976·Journal of Reproduction and Fertility·Y Ruckebusch, L Bueno
Apr 1, 1975·Journal of Reproduction and Fertility·Y Ruckebusch, F Bayard
Jul 1, 1991·Diseases of the Colon and Rectum·D GarciaP Parrilla
Aug 1, 1988·Digestive Diseases and Sciences·M DapoignyR Tournut
May 1, 1985·Gastroenterology·J FrexinosJ Fioramonti
Sep 1, 1969·Nihon Heikatsukin Gakkai zasshi·M Hojo
Sep 1, 1995·World Journal of Surgery·A Shafik
Jan 1, 1994·Gynecologic and Obstetric Investigation·A Shafik
Jan 1, 1994·European Surgical Research. Europäische Chirurgische Forschung. Recherches Chirurgicales Européennes·A Shafik
Sep 1, 1993·World Journal of Surgery·A Shafik
Nov 1, 1945·The Journal of Nervous and Mental Disease·P M KOHNJ A TOOMEY

❮ Previous
Next ❯

Citations

Apr 13, 2001·European Journal of Obstetrics, Gynecology, and Reproductive Biology·I VerdenikB Leskosek
Aug 6, 2010·Human Reproduction Update·C DechanetH Dechaud
Nov 29, 2005·European Journal of Obstetrics, Gynecology, and Reproductive Biology·Ozren GrgicOliver Vasilj
Jul 8, 2008·International Journal of Gynaecology and Obstetrics : the Official Organ of the International Federation of Gynaecology and Obstetrics·Ozren Grgic, Ratko Matijevic
Nov 19, 2004·International Journal of Gynaecology and Obstetrics : the Official Organ of the International Federation of Gynaecology and Obstetrics·A ShafikI Shafik
Jul 31, 2007·Seminars in Cell & Developmental Biology·Robert E Garfield, William L Maner
Oct 29, 2004·International Journal of Impotence Research·A ShafikI Ahmed
Feb 2, 2019·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·N Punitha, S Ramakrishnan
Dec 9, 2000·Current Opinion in Obstetrics & Gynecology·A Shafik
Oct 16, 2020·Seminars in Reproductive Medicine·Sarah HuntBen W Mol

❮ 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.

Related Papers

European Journal of Obstetrics, Gynecology, and Reproductive Biology
M PajntarB Leskosek
European Journal of Obstetrics, Gynecology, and Reproductive Biology
Ozren GrgicOliver Vasilj
American Journal of Obstetrics and Gynecology
M PajntarD Rudel
© 2021 Meta ULC. All rights reserved