Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Expected Value01:15

Expected Value

7.8K
The expected value is known as the "long-term" average or mean. This means that over the long term of experimenting over and over, you would expect this average. The expected average is represented by the symbol μ. It is calculated as follows:
7.8K
Determination of Expected Frequency01:08

Determination of Expected Frequency

2.6K
Suppose one wants to test independence between the two variables of a contingency table. The values in the table constitute the observed frequencies of the dataset. But how does one determine the expected frequency of the dataset? One of the important assumptions is that the two variables are independent, which means the variables do not influence each other. For independent variables, the statistical probability of any event involving both variables is calculated by multiplying the individual...
2.6K
Abdominal Aorta01:25

Abdominal Aorta

2.4K
Once the aorta traverses the diaphragmatic plane at the aortic hiatus, it is known as the abdominal aorta. This anatomical structure is positioned leftward of the spinal column, encased within a cocoon of adipose tissue behind the peritoneal cavity. It terminates at the L4 vertebra, where it splits into the common iliac arteries. Prior to this bifurcation, the abdominal aorta gives rise to several vital branches.
The celiac trunk, a singular artery, divides into the left gastric artery, which...
2.4K
Expected Frequencies in Goodness-of-Fit Tests01:19

Expected Frequencies in Goodness-of-Fit Tests

8.7K
A goodness-of-fit test is conducted to determine whether the observed frequency values are statistically similar to the frequencies expected for the dataset. Suppose the expected frequencies for a dataset are equal such as when predicting the frequency of any number appearing when casting a die. In that case, the expected frequency is the ratio of the total number of observations (n)  to the number of categories (k).
8.7K
Ultrasound I: Abdominal Ultrasonography01:20

Ultrasound I: Abdominal Ultrasonography

1.6K
Introduction:
Abdominal ultrasonography, commonly known as abdominal ultrasound, is a vital, non-invasive medical imaging technique widely used in healthcare.
Procedure:
This diagnostic tool allows the clinician to visually inspect internal structures within the abdomen, including vital organs such as the liver, gallbladder, pancreas, kidneys, and spleen.
The abdominal ultrasound process begins with applying a special gel to the patient's skin over the abdomen. This gel enhances the...
1.6K
Abdominal Regions and Quadrants01:19

Abdominal Regions and Quadrants

17.4K
To promote clear communication, for instance, about the location of a patient's abdominal pain or a suspicious mass, anatomists and clinicians typically use imaginary lines to categorize the abdominopelvic cavity into either four quadrants or nine regions to identify organs in the cavity.
The simpler quadrants approach, which is more commonly used in medicine, subdivides the cavity with one horizontal and one vertical line that intersects at the patient's umbilicus (navel). The four...
17.4K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Lifestyle Factors and Thromboembolic Risk in Atrial Fibrillation: Age-Dependent Effects of Smoking and Alcohol Consumption.

Journal of arrhythmia·2026
Same author

Clinical and Therapeutic Phenotypic Clustering and Prognostic Stratification in Heart Failure Patients With Atrial Fibrillation.

Journal of arrhythmia·2026
Same author

Steam Pop During Lattice-Tip Radiofrequency Ablation: Simultaneous Intracardiac Echocardiography and Electroanatomical Mapping Recordings.

Journal of cardiovascular electrophysiology·2026
Same author

ICD Lead Implantation Into the Middle Cardiac Vein Using a Coronary Sinus Guiding Catheter After Tricuspid Valve Surgery.

Pacing and clinical electrophysiology : PACE·2026
Same author

Position Estimation Considering Uncertain Classification of Cyclists Based on Partially Observed Movement Characteristics.

Sensors (Basel, Switzerland)·2026
Same author

Differential HFpEF Response After Catheter Ablation in Persistent AF Patients With Small Low Voltage Areas.

Pacing and clinical electrophysiology : PACE·2026

Related Experiment Video

Updated: Feb 4, 2026

Pregnancy and Nursing Management for Embryo-Transferred and Genetically Modified Rabbits
04:29

Pregnancy and Nursing Management for Embryo-Transferred and Genetically Modified Rabbits

Published on: December 13, 2024

1.3K

Expectant management for abdominal pregnancy.

Koji Yasumoto1, Yukiyasu Sato2, Yusuke Ueda1

  • 1Department of Obstetrics and Gynecology, Nagahama Red Cross Hospital, Nagahama, Japan.

Gynecology and Minimally Invasive Therapy
|September 27, 2018
PubMed
Summary
This summary is machine-generated.

This case study details the first expectant management of abdominal pregnancy. The mass persisted for 3 years, eventually requiring surgical removal due to symptoms.

Keywords:
MRIdefecation painectopic pregnancylaparoscopytransvaginal ultrasonography

More Related Videos

Transabdominal Ultrasound for Pregnancy Diagnosis in Reeves' Muntjac Deer
09:26

Transabdominal Ultrasound for Pregnancy Diagnosis in Reeves' Muntjac Deer

Published on: January 7, 2014

10.9K
A Novel Use of Three-dimensional High-frequency Ultrasonography for Early Pregnancy Characterization in the Mouse
07:04

A Novel Use of Three-dimensional High-frequency Ultrasonography for Early Pregnancy Characterization in the Mouse

Published on: October 24, 2017

8.9K

Related Experiment Videos

Last Updated: Feb 4, 2026

Pregnancy and Nursing Management for Embryo-Transferred and Genetically Modified Rabbits
04:29

Pregnancy and Nursing Management for Embryo-Transferred and Genetically Modified Rabbits

Published on: December 13, 2024

1.3K
Transabdominal Ultrasound for Pregnancy Diagnosis in Reeves' Muntjac Deer
09:26

Transabdominal Ultrasound for Pregnancy Diagnosis in Reeves' Muntjac Deer

Published on: January 7, 2014

10.9K
A Novel Use of Three-dimensional High-frequency Ultrasonography for Early Pregnancy Characterization in the Mouse
07:04

A Novel Use of Three-dimensional High-frequency Ultrasonography for Early Pregnancy Characterization in the Mouse

Published on: October 24, 2017

8.9K

Area of Science:

  • Reproductive Medicine
  • Gynecology
  • Obstetrics

Background:

  • Abdominal pregnancy is a rare form of ectopic pregnancy.
  • Expectant management is typically reserved for early tubal pregnancies.
  • This case explores expectant management in a diagnosed abdominal pregnancy.

Observation:

  • A 31-year-old woman presented with suspected ectopic pregnancy.
  • Imaging revealed a 4 cm mass in the Douglas pouch, diagnosed as abdominal pregnancy.
  • The patient's human chorionic gonadotropin (hCG) levels normalized, but the mass persisted for nearly 3 years.

Findings:

  • Expectant management was initiated for the abdominal pregnancy.
  • The abdominal pregnancy mass remained in situ for an extended period.
  • Surgical intervention (laparoscopy) was ultimately necessary due to persistent defecation pain.

Implications:

  • This case suggests that expectant management may be a viable option for select abdominal pregnancies.
  • Abdominal pregnancy masses can persist long-term and necessitate delayed surgical removal.
  • Clinicians should consider prolonged observation and potential surgical intervention during expectant management of abdominal pregnancy.