Uterine Cavity (uterine + cavity)

Distribution by Scientific Domains


Selected Abstracts


Sonographic appearance of the uterine cavity following administration of mifepristone and misoprostol for termination of pregnancy

JOURNAL OF CLINICAL ULTRASOUND, Issue 6 2006
Ofer Markovitch MD
Abstract Purpose. To describe the sonographic appearance of the uterine cavity in women after administration of mifepristone and misoprostol for termination of pregnancy. Methods. Thirty-six women treated with mifepristone 600 mg followed by misoprostol 400 ,g 2 days later for termination of pregnancy were the subjects of the study. Gestational age as calculated from the last menstrual period was ,49 days. Pretreatment sonographic parameters, including gestational sac size and crown,rump length, were measured. The sonographic appearance of the uterine cavity was recorded and documented 6 hours (T-1) and 14 days (T-2) after administration of misoprostol. Results. The mean menstrual age of the patients was 42 days (range 31,49 days). The mean gestational age according to crown,rump length was 43 days (range 40,48 days). Sonographic examination performed atT-1 revealed 23 patients (62.9%) with a well-defined echogenic mass located in the uterine cavity, 2 patients (5.5%) with an intrauterine sac containing a nonviable embryo, and 11 patients (30.5%) with an endometrium thickness of 7,14 mm with no evidence of intrauterine contents. Doppler flow signals were detected in 15 of the 23 patients (65.2%) with an echogenic intrauterine mass. Sonographic examination performed at T-2 revealed 19 patients (52.8%) with a persistent echogenic intrauterine mass; Doppler flow could be detected in 15 of these patients (78.9%). Dilatation and curettage was required in 2 patients (5.6%) due to failure of treatment; all others regained normal menses. Conclusions. An intrauterine echogenic mass with well-defined borders, with or without Doppler flow signals, can be detected 2 weeks after administration of mifepristone and misoprostol for termination of pregnancy. Because most of the women in our study regained normal menses without further surgical intervention, this finding could indicate remnants of trophoblastic tissue evacuated spontaneously from the uterine cavity. Therefore, dilatation and curettage should be avoided in these cases, unless clinical symptoms or signs necessitate surgical intervention. 2006 Wiley Periodicals, Inc. J Clin Ultrasound 34:278,282, 2006 [source]


The ,frameless' intrauterine system for long-term, reversible contraception: A review of 15 years of clinical experience

JOURNAL OF OBSTETRICS AND GYNAECOLOGY RESEARCH (ELECTRONIC), Issue 3 2003
Dirk Wildemeersch
Abstract Aim:, The development of the ,frameless' intrauterine system (IUS) is a response to the growing need to develop high-performing, long-acting, reversible, and acceptable contraceptives with a high continuation of use. Methods:, This is a review of 15 years of clinical experience in randomized controlled and non-randomized clinical trials. Results:, The IUS has a similar failure rate as the TCu380A Intrauterine device (IUD), considered the ,golden standard' IUD, which is attributed to the optimal target delivery of the copper ions in the upper part of the uterine cavity. Its performance is further optimized by the atraumatic design, which reduces partial and total expulsion and minimizes the side-effects and discomforts experienced with conventional ,framed' IUDs. The mini IUS is likely to further reduce the menstrual blood loss due to the very small size. The safety of the anchoring concept is beyond doubt as was demonstrated in all clinical studies covering 15 000 woman-years experience. Conclusions:, Young nulliparous/nulligravid and parous women may significantly benefit from the advantages the ,frameless' IUS, which could be strategically important to help in reducing the increasing number of unintended pregnancies and induced abortions worldwide. Furthermore, the ,frameless' IUS has been shown to be highly effective for emergency contraception and for immediate postabortal insertion. The long lifespan of the IUS could constitute a cost-effective reversible alternative to irreversible female sterilization. [source]


A prospective comparative study between hysterosalpingography and hysteroscopy in the detection of intrauterine pathology in patients with infertility

JOURNAL OF OBSTETRICS AND GYNAECOLOGY RESEARCH (ELECTRONIC), Issue 1 2003
Sangchai Preutthipan
Abstract Aim: ,To investigate the accuracy of hysterosalpingography (HSG) in comparison to hysteroscopy in the detection of intrauterine pathology in patients with infertility, where hysteroscopy is the gold standard. Methods: ,A prospective, comparative study included 336 patients undergoing both HSG and diagnostic hysteroscopy. Main outcome measures were sensitivity, specificity, positive and negative predictive value, and accuracy rate of HSG. Results: ,Intrauterine abnormalities were shown on HSG in 286 patients and confirmed in 200 at hysteroscopy. Contrarily intrauterine lesions were detected by hysteroscopy in 4 out of 50 patients in whom HSG were normal. The most common intrauterine finding of 336 patients on hysteroscopy were intrauterine adhesions (IUA) (74), followed by endometrial polyps (56), and submucous myoma, 26 patients. Statistical analysis revealed that HSG in the detection of intrauterine pathology had a sensitivity of 98.0%, specificity of 34.9%, positive predictive value of 69.9%, negative predictive value of 92.0%, and accuracy rate of 73.2% with false-positive and false-negative rates of 30.1% and 8.0%, respectively. The common incorrect diagnoses of HSG were misdiagnosing a condition of cervical stenosis as severe IUA in 24 patients, endometrial polyps as submucous myoma in 22 out of 50 patients, and submucous myoma as endometrial polyps in 12 out of 72 patients. Conclusions: ,Hysterosalpingography is still a useful screening test for the evaluation of the uterine cavity. If a hysterogram demonstrates intrauterine abnormalities, hysteroscopy should be considered to make a definite diagnosis and treatment. Both procedures should be complementary to each other. [source]


Central pontine myelinolysis: sequele of hyponatremia during transcervical resection of endometrium

ACTA ANAESTHESIOLOGICA SCANDINAVICA, Issue 7 2002
V. R. Shah
Transcervical resection of endometrium is an alternative to hysterectomy for women with menorrhagia. The procedure involves the use of cutting loop diathermy to resect the endometrium while the uterine cavity is irrigated with 1.5% glycine which can absorb consequent fluid and electrolyte shifts. Severe hyponatremia leading to central pontine myelinolysis is an extremely rare complication of this procedure. We report a case of a young female undergoing transcervical resection of endometrium for menorrhagia, who developed central pontine myelinolysis but made a complete recovery after three months. [source]


Downregulation of CD36 results in reduced phagocytic ability of peritoneal macrophages of women with endometriosis,

THE JOURNAL OF PATHOLOGY, Issue 2 2009
Pei-Chin Chuang
Abstract Endometriosis, defined as the growth of endometrial tissues outside of the uterine cavity, is a severe and complex disease affecting more than 10% of women. The aetiology of endometriosis is unclear but immune dysfunction might be an important factor for its development. The natural function of the immune system is to detect and destroy aberrant or abnormal cells. Failure of the immune system to eradicate these aberrant cells often results in disease pathogenesis. We report here that the phagocytic ability of macrophages is reduced in peritoneal macrophages isolated from women with endometriosis. In-depth investigation revealed that the level of CD36, a class B scavenger receptor, in peritoneal macrophages derived from women with endometriosis was lower than that in normal macrophages. Blockage of CD36 function by neutralized antibody or knocking down CD36 using siRNA impaired the phagocytic ability of normal macrophages. In contrast, forced expression of CD36 in macrophages isolated from women with endometriosis restored phagocytic ability. Taken together, we identified that the scavenger receptor CD36 is reduced in the peritoneal macrophages of women with endometriosis, which leads to a decrease of the phagocytic ability of macrophages. These findings revealed a potential mechanism of immune dysfunction during endometriosis development. Copyright 2009 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd. [source]


REVIEW ARTICLE: Immunopathogenesis of Pelvic Endometriosis: Role of Hepatocyte Growth Factor, Macrophages and Ovarian Steroids

AMERICAN JOURNAL OF REPRODUCTIVE IMMUNOLOGY, Issue 5 2008
Khaleque Newaz Khan
Endometriosis, a chronic disease characterized by endometrial tissue located outside the uterine cavity is associated with chronic pelvic pain and infertility. However, an in-depth understanding of the pathophysiology of endometriosis is still elusive. It is generally believed that besides ovarian steroid hormones, the growth of endometriosis can be regulated by innate immune system in pelvic microenvironment by their interaction with endometrial cells and immune cells. We conducted a series of studies in perspectives of pelvic inflammation that is triggered primarily by bacterial endotoxin (lipopolysacccharide) and is mediated by toll-like receptor 4 and showed their involvement in the development of pelvic endometriosis. As a cellular component of innate immune system, macrophages were found to play a central role in inducing pelvic inflammatory reaction. We further report here that peritoneal macrophages retain receptors encoding for estrogen and progesterone and ovarian steroids also participate in producing an inflammatory response in pelvic cavity and are involved in the growth of endometriosis either alone or in combination with hepatocyte growth factor (HGF). As a pleiotropic growth factor, HGF retains multifunctional role in endometriosis. We describe here the individual and step-wise role of HGF, macrophages and ovarian steroid hormones and their orchestrated involvement in the immunopathogenesis of pelvic endometriosis. [source]


Postpartum intrauterine pressure studies of the uterotonic effect of oral misoprostol and intramuscular syntometrine

BJOG : AN INTERNATIONAL JOURNAL OF OBSTETRICS & GYNAECOLOGY, Issue 1 2001
Y.S. Chong
Objectives To investigate the effect of oral misoprostol in dosages varying from 200 ,g to 800 ,g on postpartum uterine contractility and to establish their side effects. Design A prospective descriptive study. Participants Fifty-seven women who delivered vaginally after spontaneous labours not requiring augmentation. Methods Within 5 minutes of delivery of the placenta, a calibrated Gaeltec catheter with an intrauterine pressure transducer at its tip was inserted transcervically into the uterine cavity. Cumulative uterine activity was recorded for 30 minutes in each woman before administering the oral misoprostol tablets and continued for a further 90 minutes after its administration. Thus each woman acted as her own control regarding changes in uterine contractility. Uterine activity was recorded on a Sonicaid Meridian fetal monitor, which measures active contraction area automatically. The incidence of side effects was also recorded. Results There was no statistical difference (P=0.887) in the adjusted mean difference in cumulative uterine activity following all the doses of oral misoprostol, compared with intramuscular syntometrine, the largest difference being seen in oral misoprostol 200 ,g (adjusted mean difference ,2282 kPas s, 95% CI ,7954 to 3390 kPas s). The mean onset of action of oral misoprostol (6.1, SD 2.1 min) was significantly slower than that of intramuscular syntometrine (3.2, SD 1.5 min; P=0.002), but their durations of action were similar (P=0.637). In the misoprostol group the commonest side effects were shivering (36%) and a rise in body temperature above 38C (40%). In the syntometrine group, the most commonly observed side effect was moderate uterine pain (nine out of ten women) and a rise in diastolic blood pressure of 20 mmHg (two out of ten women). Conclusion The results of this study show that oral misoprostol has a definite uterotonic effect on the postpartum uterus. At doses of 200 ,g to 400 ,g, oral misoprostol has a similar uterotonic effect to intramuscular syntometrine. Higher doses of oral misoprostol are associated with significantly more side effects. [source]