BIOMAT Database Logo BIOMAT Database Logo

Anal dilation during labor. 2010

Vladimir Kalis, and Jaroslava Karbanova, and Zuzana Bukacova, and Barbora Bednarova, and Zdenek Rokyta, and Milena Kralickova
Department of Obstetrics and Gynecology, University Hospital, Faculty of Medicine, Charles University, 304 60 Pilsen, Czech Republic. kalisv@fnplzen.cz

OBJECTIVE To determine the incidence and range of anal dilation during the final phase of the second stage of labor and shortly after delivery; determine whether parity affects anal dilation; and obtain anthropometric data for future projects. METHODS The anal diameter was measured on admission, when the fetal head crowned, and after suturing perineal injury in 142 women delivered between August 2008 and May 2009 at University Hospital Pilsen and District Hospital Klatovy, in the Czech Republic. RESULTS The anus was dilated during the second stage of labor in all women, and differences between primiparas and multiparas were not significant. The medians for both the anteroposterior and transverse diameters were 25 mm. No measured variable was statistically associated with anal sphincter dilation. CONCLUSIONS Anal dilation during the second stage of labor causes anthropometric changes to the perineum. This ought to be considered when designing anthropometric studies and in studies aiming at minimizing anal sphincter trauma during delivery.

UI MeSH Term Description Entries
D007744 Obstetric Labor Complications Medical problems associated with OBSTETRIC LABOR, such as BREECH PRESENTATION; PREMATURE OBSTETRIC LABOR; HEMORRHAGE; or others. These complications can affect the well-being of the mother, the FETUS, or both. Complications, Labor,Labor Complications,Complication, Labor,Complication, Obstetric Labor,Complications, Obstetric Labor,Labor Complication,Labor Complication, Obstetric,Labor Complications, Obstetric,Obstetric Labor Complication
D007748 Labor Stage, Second The period of OBSTETRIC LABOR that is from the complete dilatation of the CERVIX UTERI to the expulsion of the FETUS. Labor, Second Stage,Labor Stages, Second,Second Labor Stage,Second Labor Stages,Second Stage Labor,Stage, Second Labor,Stages, Second Labor
D009772 Obstetrical Forceps Surgical instrument designed to extract the newborn by the head from the maternal passages without injury to it or the mother. Obstetric Forceps,Forcep, Obstetric,Forcep, Obstetrical,Forceps, Obstetric,Forceps, Obstetrical,Obstetric Forcep,Obstetrical Forcep
D010502 Perineum The body region lying between the genital area and the ANUS on the surface of the trunk, and to the shallow compartment lying deep to this area that is inferior to the PELVIC DIAPHRAGM. The surface area is between the VULVA and the anus in the female, and between the SCROTUM and the anus in the male. Perineums
D011247 Pregnancy The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH. Gestation,Pregnancies
D004108 Dilatation, Pathologic The condition of an anatomical structure's being dilated beyond normal dimensions. Ectasia,Dilatation, Pathological,Dilatations, Pathologic,Dilatations, Pathological,Pathologic Dilatation,Pathologic Dilatations,Pathological Dilatation,Pathological Dilatations
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D001003 Anal Canal The terminal segment of the LARGE INTESTINE, beginning from the ampulla of the RECTUM and ending at the anus. Anal Gland, Human,Anal Sphincter,Anus,Anal Gland,Anal Glands, Human,Detrusor External Sphincter,External Anal Sphincter,Internal Anal Sphincter,Anal Sphincter, External,Anal Sphincter, Internal,Anal Sphincters,Detrusor External Sphincters,External Anal Sphincters,Human Anal Gland,Human Anal Glands,Internal Anal Sphincters,Sphincter, Anal,Sphincter, Detrusor External,Sphincter, External Anal,Sphincter, Internal Anal,Sphincters, Anal

Related Publications

Vladimir Kalis, and Jaroslava Karbanova, and Zuzana Bukacova, and Barbora Bednarova, and Zdenek Rokyta, and Milena Kralickova
[Complete dilation of the cervix during labor].
November 1953, La semaine des hopitaux : organe fonde par l'Association d'enseignement medical des hopitaux de Paris,
Vladimir Kalis, and Jaroslava Karbanova, and Zuzana Bukacova, and Barbora Bednarova, and Zdenek Rokyta, and Milena Kralickova
Dilation of the Os Uteri and Perinæum during Labor.
December 1868, The Chicago medical journal,
Vladimir Kalis, and Jaroslava Karbanova, and Zuzana Bukacova, and Barbora Bednarova, and Zdenek Rokyta, and Milena Kralickova
How to manage jamming of the dilator during anal dilation.
January 2005, Chirurgia italiana,
Vladimir Kalis, and Jaroslava Karbanova, and Zuzana Bukacova, and Barbora Bednarova, and Zdenek Rokyta, and Milena Kralickova
[Dilation and anal fissures: sexual abuse?].
March 2013, Anales de pediatria (Barcelona, Spain : 2003),
Vladimir Kalis, and Jaroslava Karbanova, and Zuzana Bukacova, and Barbora Bednarova, and Zdenek Rokyta, and Milena Kralickova
An ultrasonic device for continuous measurement of cervical dilation during labor.
July 1977, Ultrasonics,
Vladimir Kalis, and Jaroslava Karbanova, and Zuzana Bukacova, and Barbora Bednarova, and Zdenek Rokyta, and Milena Kralickova
[Anal sphincter injuries during labor. Remaining problems 6 months postpartum].
April 1994, Lakartidningen,
Vladimir Kalis, and Jaroslava Karbanova, and Zuzana Bukacova, and Barbora Bednarova, and Zdenek Rokyta, and Milena Kralickova
Anal manometric evaluation in anal fissure. Effect of anal dilation and lateral subcutaneous sphincterotomy.
January 1986, Acta chirurgica Scandinavica,
Vladimir Kalis, and Jaroslava Karbanova, and Zuzana Bukacova, and Barbora Bednarova, and Zdenek Rokyta, and Milena Kralickova
Devices for Measuring Cervical Dilation During Labor: Systematic Review and Meta-analysis.
April 2018, Obstetrical & gynecological survey,
Vladimir Kalis, and Jaroslava Karbanova, and Zuzana Bukacova, and Barbora Bednarova, and Zdenek Rokyta, and Milena Kralickova
The association of maternal weight with cesarean risk, labor duration, and cervical dilation rate during labor induction.
March 2004, Obstetrics and gynecology,
Vladimir Kalis, and Jaroslava Karbanova, and Zuzana Bukacova, and Barbora Bednarova, and Zdenek Rokyta, and Milena Kralickova
Dilation occurs more slowly in induced labor.
January 2012, Journal of midwifery & women's health,
Copied contents to your clipboard!