Retroperitoneal ectopic pregnancy: successful expectant management in condition of early pregnancy failure.

BACKGROUND: Retroperitoneal ectopic pregnancy (REP) refers to abnormal implantation of the fertilized egg in the retroperitoneal cavity. REP can be divided into pelvic and abdominal positions. Extremely rare, the incidence of REP is less than 1% of ectopic pregnancy (EP). Herein, we report the first case of paraaortic-located REP in association with successful expectant management, thus raising awareness among healthcare providers, particularly in low-resource settings. CASE PRESENTATION: A reproductive-age woman presented at our tertiary referral hospital because of amenorrhea and a positive pregnancy test. Based on serial serum ß-hCG levels and imaging modalities including transabdominal ultrasound, transvaginal sonography, and magnetic resonance imaging (MRI), a REP of 7-9 weeks of gestational age adherent to abdominal paraaortic region was detected. Since the pregnancy was spontaneously arrested without clinical symptoms, expectant management was first indicated following careful evaluation. After a 1-month follow-up, the ectopic mass naturally degenerated without complications and her ß-hCG concentration returned to a negative value. Therefore, the patient recovered completely and avoided unnecessary surgery as well as toxicity of medical treatment when using systemic methotrexate. CONCLUSIONS: In addition to transvaginal and transabdominal ultrasound, MRI is necessary for the diagnosis of nonviable REP. Alongside the great vessels in the abdominal cavity should be taken into consideration in all suspected cases relating to this rare entity. Expectant management may be carefully indicated in conditions of nonviable REP and unruptured REP, where applicable.

Rectal Ectopic Pregnancy Managed Successfully by Minimally Invasive Treatment Using Local Methotrexate Injection and Systemic Methotrexate Administration: An Extremely Rare Case at Tu Du Hospital in Vietnam and Literature Review.

Rectal ectopic pregnancy (REP) is one of the most extremely rare forms of ectopic pregnancy that strongly leads to maternal mortality higher than common types. An early diagnosis of unruptured REP remains a challenge and its management ought to be individualized depending on the clinical scenario. Currently, owing to the paucity of data, there are no practical guidelines for an appropriate treatment until today. We hereby present a very unusual case at our maternity care center. A 30-year-old pregnant woman (gravidity: 2, parity: 2) complained with abdominal pain and retard menstrual cycle. After serum beta-human chorionic gonadotropin (ß-hCG) levels and ultrasonic examinations, a diagnosis of ovarian ectopic pregnancy was established. Thus, the patient underwent explanatory laparoscopy for confirming the diagnosis and for the treatment. However, on the 5th day postoperative course, her ß-hCG level continued to increase every 48 hours. By magnetic resonance imaging and pelvic ultrasonography, a gestational sac adherent to the rectal wall was clearly detected. After counseling with multidisciplinary team, a minimally invasive laparoscopy followed by a local injection of methotrexate under ultrasound guidance for gestational sac access and a systemic multidose methotrexate regimen were indicated. In result, her serum ß-hCG declined substantially. Although it is very rare, extrauterine pregnancy involving the rectum may be presented. Early diagnosis helps in avoiding the fatal complications and a proper management should be counseled carefully. Conservative treatment with minimally surgical intervention could be an alternative option in appropriate condition. Further data are required to summarize this occult entity.

Air pollution and risk of respiratory and cardiovascular hospitalizations in a large city of the Mekong Delta Region.

It is important to explore air pollution and health effects in developing cities for early prevention rather than waiting for conditions to deteriorate as in the current megacities. This study aims to investigate the short-term health effects of air pollution in a large city in the Mekong Delta Region (MDR) of Vietnam. Air pollution data from January 2015 to December 2018 were collected from the Environmental Monitoring Centre of Can Tho City. The data of respiratory and cardiovascular disease (CVD) admissions in 18 hospitals and medical centers were collected. A time-series regression analysis was conducted using distributed lag models to examine the relationship between the air pollutants and hospitalizations including the delayed effect up to 7 days. The research findings reveal that a 10 µg increase in PM10 was associated with an increase of 2.5% in the risk of respiratory admission for all people and 2.2% in the risk of CVD admission for the elderly on the same day. The analysis stratified by age and sex indicates that PM10 resulted in a higher risk of respiratory admission among children (0-5 years old) and males compared with other groups. PM10 and NO2 were significantly associated with CVD admission among the elderly at lag 4 and 6 days. The effects of other air pollutants (SO2, O3) were not observed in this study. As development continues in this region, there is an urgent need for intervention measures to minimize the health impacts associated with the expected increases in air pollution in the MDR.