Shift work and heavy lifting may make it harder to get pregnant

Conclusion Many factors affect a couple’s ability to get pregnant, and the numbers of mature eggs produced by the woman is one of them. This study seems to have found a link between physically demanding work, shift work, and egg production. However, the study has many limitations. All the women were seeking IVF treatment, so already knew they had a fertility problem. The numbers of mature eggs, used in the study to calculate the women’s potential for fertility, were counted after extraction during IVF treatment. It’s not clear whether these findings would have applied to women releasing eggs naturally (eggs are usually released one at a time), or to women without known fertility problems. The study took place over a long period of time, from 2004 to 2015. Techniques for egg retrieval have improved over this time which may have affected results. Shift work and physically demanding work may be a marker for other lifestyle or health factors not measured in this study. For a start, we don’t know the length of women’s working hours, or their salaries, their household income, financial pressures or other illnesses. All of these could affect women’s health and fertility potential. The study is relatively small. Although more than 500 women were recruited, we only have information about working conditions and egg retrieval - the main result - for 313 women. Of these, 186 said they sometimes or often lifted heavy loads at work, 106 said they did p...
Source: NHS News Feed - Category: Consumer Health News Tags: Pregnancy/child Lifestyle/exercise Source Type: news

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Abstract Objective: Our objective was to explore whether the pregnancy rate (PR) was higher than usual after hysterosalpingo-contrast sonography (HyCoSy). Methods: We conducted a prospective observational study of 1,008 infertility patients, all of whom were examined by HyCoSy. The expected time for spontaneous pregnancy was at least 180 days after the HyCoSy exams. There were three types of HyCoSy results: type I, defined as both fallopian tubes patent; type II, defined as one fallopian tube patent with obstruction in the other; and type III, defined as both fallopian tubes obstructed. During the HyCoSy exam...
Source: Biomed Res - Category: Research Authors: Tags: Biomed Res Int Source Type: research
Publication date: Available online 16 October 2018Source: Reproductive ToxicologyAuthor(s): Jisun Yun, Inha Lee, Young Bin Won, Jae Hoon Lee, Seok Kyo Seo, SiHyun Cho, Young Sik Choi, Byung Seok Lee, Bo Hyon YunAbstractThis retrospective study investigated and compared the incidence of congenital foetal anomalies after letrozole versus clomiphene citrate (CC) administration for infertility treatment. Data from 142 newborns were included: letrozole group, n = 83; CC group, n = 61. Congenital anomalies were found in 7.2% (6/83) patients in the letrozole group and 18.0% (11/61) patients in the CC g...
Source: Reproductive Toxicology - Category: Toxicology Source Type: research
​BY GREGORY TAYLOR, DO, &FRANK SCHELL, DOA 30-year-old woman presented to the ED complaining of pelvic pain. She said she felt an acute onset of sharp lower right pelvic pain during intercourse two days earlier. The pain continued to worsen, becoming diffuse. She was also experiencing nausea, vomiting, malaise, anorexia, and vaginal spotting. She had no history or concern for sexually transmitted disease, and had no fever or vaginal discharge. She had had a previous Cesarean section and bilateral tubal ligation.Her vital signs were a heart rate of 110 bpm, a respiratory rate of 25 bpm, a blood pressure of 113/88 mm H...
Source: The Case Files - Category: Emergency Medicine Tags: Blog Posts Source Type: research
Ultrasound in Obstetrics&Gynecology,Volume 52, Issue S1, Page 262-262, October 2018.
Source: Ultrasound in Obstetrics and Gynecology - Category: Radiology Authors: Source Type: research
Ultrasound in Obstetrics&Gynecology,Volume 52, Issue S1, Page 173-174, October 2018.
Source: Ultrasound in Obstetrics and Gynecology - Category: Radiology Authors: Source Type: research
Abstract Letrozole is an aromatase inhibitor with an unapproved use for ovulation induction with infertility. Because of the proximity of this use to conception, we selected letrozole to explore the effect of imperfect estimation in the pregnancy start on misclassification in measurement of first-trimester exposure. Using electronic health data from the United States Sentinel database (2001-2015), we identified live-birth pregnancies conceived through in-vitro fertilization or intrauterine insemination. The pregnancy start was calculated using 1) a validated algorithm to estimate the last menstrual period (LMP), 2...
Source: Am J Epidemiol - Category: Epidemiology Authors: Tags: Am J Epidemiol Source Type: research
This study investigated the quality and quantity of eggs and embryos as well as the clinical pregnancy outcome in young infertile women with diminished ovarian reserve (DOR) after in vitro fertilization/intracytoplasmic sperm injection (IVF/ICSI). MATERIAL AND METHODS We retrospectively reviewed records of 4285 infertile women and divided them into 3 groups according to age and ovarian reserve: young women with normal ovarian reserve (n=1695), young women with DOR (n=1121), and older women with DOR (n=1469). RESULTS In young women with DOR, the proportion of high-quality embryos was significantly higher than in older women...
Source: Medical Science Monitor - Category: Research Tags: Med Sci Monit Source Type: research
The objective of the present study was to assess toxic and nutritional trace element and mineral status in hair of women with IVF pregnancy and their children. Inductively-coupled plasma mass-spectrometry was used to assess hair trace element levels of 50 women with IVF pregnancy and 158 controls with spontaneous pregnancy and their children. Women with IVF pregnancy were characterized by significantly elevated hair As, Hg, Li, K, Na, and reduced Fe, Si, and Zn contents. Children from IVF pregnancy had significantly lower values of hair Cr, Fe, Mg, Sr, and Al content when compared to the control values, whereas hair Hg and...
Source: Reproductive Toxicology - Category: Toxicology Source Type: research
Condition:   Infertility Intervention:   Drug: Low Molecular Weight Heparin (enoxaparin sodium) Sponsors:   Shenzhen Zhongshan Urology Hospital;   The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School;   Renmin Hospital of Wuhan University Not yet recruiting
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials
Abstract Endometrial polyps are frequently seen in subfertile women, and there is some evidence suggesting a detrimental effect on fertility. How polyps contribute to subfertility and pregnancy loss is uncertain and possible mechanisms are poorly understood. It may be related to mechanical interference with sperm transport, embryo implantation or through intrauterine inflammation or altered production of endometrial receptivity factors. Different diagnostic modalities such as two- or three-dimensional transvaginal ultrasound, saline infusion sonography or hysteroscopy are commonly used to evaluate endometrial polyps with g...
Source: The Journal of Obstetrics and Gynecology of India - Category: OBGYN Source Type: research
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