To install click the Add extension button. That's it.

The source code for the WIKI 2 extension is being checked by specialists of the Mozilla Foundation, Google, and Apple. You could also do it yourself at any point in time.

4,5
Kelly Slayton
Congratulations on this excellent venture… what a great idea!
Alexander Grigorievskiy
I use WIKI 2 every day and almost forgot how the original Wikipedia looks like.
Live Statistics
English Articles
Improved in 24 Hours
Added in 24 Hours
Languages
Recent
Show all languages
What we do. Every page goes through several hundred of perfecting techniques; in live mode. Quite the same Wikipedia. Just better.
.
Leo
Newton
Brights
Milds

Chorionic hematoma

From Wikipedia, the free encyclopedia

Chorionic hematoma
Other namesChorionic hemorrhage, chorionic bleed
Ultrasound showing a subchorionic hemorrhage[1]

Chorionic hematoma is the pooling of blood (hematoma) between the chorion, a membrane surrounding the embryo, and the uterine wall.[2] It occurs in about 3.1% of all pregnancies,[2] it is the most common sonographic abnormality and the most common cause of first trimester bleeding.[3]

YouTube Encyclopedic

  • 1/3
    Views:
    39 888
    9 257
    598
  • subchorionic hemorrhage - patient education video
  • I have a low-lying placenta, a tear, and a subchorionic hemorrhage. Will my baby survive?
  • Hemorrhage 3, Chronic hemorrhage

Transcription

Cause and diagnosis

Chorion, amnion and gestational (yolk) sac

Chorionic hematomas can be caused by the separation of the chorion from the endometrium (inner membrane of the uterus). Hematomas are classified by their location between tissue layers:[4]

  • Subchorionic hematomas, the most common type, are between the chorion and endometrium.
  • Retroplacental hematomas are entirely behind the placenta and not touching the gestational sac.
  • Subamniotic or preplacental hematomas are contained within amnion and chorion. Rare.

Most patients with a small subchorionic hematoma are asymptomatic.[5] Symptoms include vaginal bleeding, abdominal pain, premature labor and threatened miscarriage.[6]

Ultrasonography is the preferred method of diagnosis.[7] A chorionic hematoma appears on ultrasound as a hypoechoic crescent adjacent to the gestational sac. The hematoma is considered small if it is under 20% of the size of the sac and large if it is over 50%.[2]

Prognosis and treatment

The presence of subchorionic bleeding around the gestational sac does not have a significant association with miscarriage overall.[8][9] However, the case of intrauterine hematoma observed before 9 weeks of gestational age has been associated with an increased risk of miscarriage.[10] In one study women who complied with instructions for bed rest for the duration of bleeding had a lower rate of miscarriage and a higher rate of term pregnancy than non-compliant women. The study had several limitations; results were severely confounded by inherent differences between compliant and non-compliant women.[11]

References

  1. ^ "UOTW #3 Answer - Ultrasound of the Week". Ultrasound of the Week. Retrieved 27 May 2017.
  2. ^ a b c Nagy, Sándor MD; Bush, Melissa MD; Stone, Joanne MD; Lapinski, Robert H. PhD; Gardó, Sándor MD, DSci. Clinical Significance of Subchorionic and Retroplacental Hematomas Detected in the First Trimester of Pregnancy [1]. Obstetrics & Gynecology: July 2003 - Volume 102 - Issue 1 - p 94-100
  3. ^ Avneesh Chhabra, MD et al. "Subchorionic Hemorrhage" [2], Medscape.
  4. ^ Trop, Isabelle and Levine, Deborah. Hemorrhage During Pregnancy: Sonography and MR Imaging [3]. Amer J Roentgenology 2001; 176:607-615.
  5. ^ Trop I, Levine D. Hemorrhage during pregnancy: sonography and MR imaging. AJR Am J Roentgenol. Mar 2001;176(3):607-15.
  6. ^ Hodgson DT, Lotfipour S, Fox JC. Vaginal bleeding before 20 weeks gestation due to placental abruption leading to disseminated intravascular coagulation and fetal loss after appearing to satisfy criteria for routine threatened abortion: a case report and brief review of the literature. J Emerg Med. May 2007;32(4):387-92
  7. ^ Abu-Yousef MM, Bleicher JJ, Williamson RA, Weiner CP. Subchorionic hemorrhage: sonographic diagnosis and clinical significance. AJR Am J Roentgenol. Oct 1987;149(4):737-40.
  8. ^ "Miscarriage risk is not increased with subchorionic hematoma". www.mdedge.com.
  9. ^ N. Stamatopoulos; C. Lu; F. Infante; U. Menakaya; I. Casikar; S. Reid; M. Mongelli; G. Condous (2013). "OP03.03: Does the presence of subchorionic haematoma increase the risk of miscarriage?". Ultrasound in Obstetrics & Gynecology. 42 (s1): 54. doi:10.1002/uog.12736.
  10. ^ Maso, G.; Dʼottavio, G.; De Seta, F.; Sartore, A.; Piccoli, M.; Mandruzzato, G. (2005). "First-Trimester Intrauterine Hematoma and Outcome of Pregnancy". Obstetrics & Gynecology. 105 (2): 339–44. doi:10.1097/01.AOG.0000152000.71369.bd. PMID 15684162. S2CID 12502344.
  11. ^ Ben-Haroush A, Yogev Y, Mashiach R, Meizner I. Pregnancy outcome of threatened abortion with subchorionic hematoma: possible benefit of bed-rest? Journal Isr Med Assoc J. 2003 Jun;5(6):422-4
This page was last edited on 16 August 2023, at 14:15
Basis of this page is in Wikipedia. Text is available under the CC BY-SA 3.0 Unported License. Non-text media are available under their specified licenses. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc. WIKI 2 is an independent company and has no affiliation with Wikimedia Foundation.