scholarly journals Evaluation of right myocardial performance index of in vitro fertilization fetuses and spontaneous pregnancy fetuses: a cross-sectional study

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Shaoqi Chen ◽  
Zemin Zhuang ◽  
Qingzi Chen ◽  
Xiya Du ◽  
Weiping Li ◽  
...  
Keyword(s):  
Cardiac Function ◽  
Reference Range ◽  
Automatic Measurement ◽  
Normal Reference Range ◽  
Vitro Fertilization ◽  
Spontaneous Pregnancy ◽  
Normal Reference ◽  
Significant Difference ◽  
Singleton Pregnancies

Abstract Background Whether the in vitro fertilization (IVF) has an effect on the cardiac function of the fetus is very important to evaluate the safety of the technique. The aim of this paper is to establish normal reference range for the fetal right myocardial performance index (RMPI), and compare the reference range between IVF fetuses and spontaneous pregnancy (SP) fetuses by automatic measurement of the RMPI. Methods Three hundred seventy-one spontaneous singleton pregnancies (the control group) and 39 singleton pregnancies conceived by IVF (the experimental group) were enrolled into the current study. An automatic measurement system was used to acquire the RMPI. The cardiac function of the two groups was compared by t-test. Results There was no significant difference in normal reference range of RMPI between IVF fetuses and SP fetuses (RMPI 0.42 ± 0.05 vs 0.43 ± 0.05). No strong correlation was also noted between RMPI with gestational age and heart rate. Conclusions Normal reference ranges of RMPI of IVF fetuses and SP fetuses were established, and no significant difference between IVF fetuses and SP fetuses in RMPI was found. Thus, these findings may suggest that IVF has little impact on cardiac function of the fetus.

scholarly journals Evaluation of Right Myocardial Performance Index of In Vitro Fertilization Fetuses and Spontaneous Pregnancy Fetuses:A Cross-Sectional Study

2021 ◽  
Author(s):  
Shaoqi Chen ◽  
Zemin Zhuang ◽  
Qingzi Chen ◽  
Xiya Du ◽  
Weiping Li ◽  
...  
Keyword(s):  
Cardiac Function ◽  
Reference Range ◽  
Automatic Measurement ◽  
Normal Reference Range ◽  
Vitro Fertilization ◽  
Spontaneous Pregnancy ◽  
Normal Reference ◽  
Significant Difference ◽  
Singleton Pregnancies

Abstract Background Whether the in vitro fertilization (IVF) has an effect on the cardiac function of the fetus is very important to evaluate the safety of the technique. The aim of this paper is to establish normal reference range for the fetal right myocardial performance index (RMPI), and compare the reference range between IVF fetuses and spontaneous pregnancy (SP) fetuses by automatic measurement of the RMPI.Methods 371 spontaneous singleton pregnancies (the control group) and 39 singleton pregnancies conceived by IVF (the experimental group) were enrolled into the current study. An automatic measurement system was used to acquire the RMPI. The cardiac function of the two groups was compared by t-test. Results There was no significant difference in normal reference range of RMPI between IVF fetuses and SP fetuses (RMPI 0.42 ±0.05 vs 0.43±0.05). No strong correlation was also noted between RMPI with gestational age and heart rate.Conclusions Normal reference ranges of RMPI of IVF fetuses and SP fetuses were established, and no significant difference between IVF fetuses and SP fetuses in RMPI was found. Thus, these findings may suggest that IVF has little impact on cardiac function of the fetus.

scholarly journals Evaluation of Right Myocardial Performance Index of In Vitro Fertilization Fetuses and Spontaneous Pregnancy Fetuses:A Cross-Sectional Study

2021 ◽  
Author(s):  
Shaoqi Chen ◽  
Zemin Zhuang ◽  
Qingzi Chen ◽  
Xiya Du ◽  
Xuerui Tan
Keyword(s):  
Reference Range ◽  
Automatic Measurement ◽  
Myocardial Performance ◽  
Normal Reference Range ◽  
Vitro Fertilization ◽  
Spontaneous Pregnancy ◽  
Normal Reference ◽  
Significant Difference ◽  
Singleton Pregnancies

Abstract Background Whether the in vitro fertilization (IVF) has an effect on the cardiac function of the fetus is very important to evaluate the safety of the technique. The aim of this paper is to establish normal reference range for the fetal right myocardial performance index (RMPI), and compare the reference range between IVF fetuses and spontaneous pregnancy (SP) fetuses by automatic measurement of the RMPI.Methods 371 spontaneous singleton pregnancies (the control group) and 39 singleton pregnancies conceived by IVF (the experimental group) were enrolled into the current study. An automatic measurement system was used to acquire the RMPI. The cardiac function of the two groups was compared by t-test. Results There was no significant difference in normal reference range of RMPI between IVF fetuses and SP fetuses (RMPI 0.42 ±0.05 vs 0.43±0.05). No strong correlation was also noted between RMPI with gestational age and heart rate.Conclusions Normal reference ranges of RMPI of IVF fetuses and SP fetuses were established, and no significant difference between IVF fetuses and SP fetuses in RMPI was found.

scholarly journals Evaluation of Right Myocardial Performance Index of In Vitro Fertilization Fetuses and Spontaneous Pregnancy Fetuses: A Cross-Sectional Study

2020 ◽  
Author(s):  
Shaoqi Chen ◽  
Zemin Zhuang ◽  
Qingzi Chen ◽  
Xiya Du ◽  
Xuerui Tan
Keyword(s):  
In Vitro Fertilization ◽  
Performance Index ◽  
Reference Range ◽  
Myocardial Performance ◽  
Normal Reference Range ◽  
Vitro Fertilization ◽  
Spontaneous Pregnancy ◽  
Normal Reference ◽  
Significant Difference

Abstract OBJECTIVETo establish normal reference range for the fetal right myocardial performance index (RMPI), and compare the reference range between in vitro fertilization (IVF) fetuses and spontaneous pregnancy (SP) fetuses by automatic measurement of the RMPI.METHODSFrom September 2019 to January 2020, 410 participants, who were at 19-40 weeks' gestation, were enrolled into the current study. Among 410 participants, there were 371 spontaneous pregnancies which were matched as control group, and the experimental group involved 39 singleton pregnancies conceived by IVF. RMPI was calculated as (a-b)/b. The three readings were obtained and averaged per examination, with intra-observer repeatability assessed by intraclass correlation coefficient (ICC) and 95% confidence interval (CI). The ‘a’ and ‘b’ intervals were measured at 3 different caliper positions in each fetus: beginning of the original valve clicks (‘original’), beginning of the reflected tricuspid and pulmonary closure clicks (‘reflected’), and peak of valve clicks (‘peak’).RESULTSThe RMPI of SP fetuses was 0.43±0.05 (mean ± standard deviation (SD)), and the RMPI of IVF fetuses was 0.42 ±0.05 (mean ± SD). There was no significant difference in normal reference range of right MPI between IVF fetuses and SP fetuses. No strong correlation was also noted between RMPI with gestational age and heart rate.CONCLUSIONNormal reference ranges of RMPI of IVF fetuses and SP fetuses were established, and no significant difference between IVF fetuses and SP fetuses was found.

scholarly journals The sequelae of untreated maternal hypothyroidism

2004 ◽  
pp. U45-U48 ◽  
Author(s):  
ML Mitchell ◽  
RZ Klein
Keyword(s):  
Pregnant Women ◽  
Subclinical Hypothyroidism ◽  
Reference Range ◽  
Critical Time ◽  
Normal Reference Range ◽  
Screening Programs ◽  
Normal Reference ◽  
Significant Difference ◽  
The Mean ◽  
In Pregnancy

The concept that gestational subclinical hypothyroidism could have deleterious effects on the intellectual outcome of progeny was championed more than three decades ago by Evelyn Man in a series of publications. Her studies lay fallow until the Spanish group directed by Morreale de Escobar and the Dutch group headed by Vulsma provided the rationale for her results. Although the findings of the Spanish and Dutch groups elucidated the pathophysiologic basis for Man's conclusions, questions remained regarding the reliability of her biochemical measurements and possible bias in patient selection. In view of the uncertainty surrounding the validity of Man's work, we decided to try to confirm her findings. Our initial goal was to obtain an estimate of the prevalence of subclinical hypothyroidism in an unselected population living in New England. We accomplished this with two separate prospective studies involving 12 000 pregnant women residing in Maine. We found that 2.3% had TSH concentrations of >6.0 mU/l and 0.3% had TSH values of >12 mU/l at 17 weeks' gestation. We next did a retrospective study, utilizing sera that had been stored at -20 degrees C for 8 years, obtained in week 17 of gestation from 25 000 women. We identified 62 women with subclinical hypothyroidism and 124 matched controls. Fourteen of the hypothyroid mothers had been diagnosed and treated before and during pregnancy on a dosage of thyroxine that was unchanged. WISC IQs of the offspring of the 124 control and 62 hypothyroid mothers were determined at 8+/-0.5 years. The mean and s.d. of IQs of the children of the 124 control and of the 14 treated hypothyroid mothers were significantly higher than those of the children of the 48 untreated hypothyroid women. More than twice as many children of the untreated mothers had IQs of >1 s.d. below the control mean, and four times as many of the children had IQs 2 s.d. below the control mean, as did the children of the controls. A comparison of the mean hormonal values of the treated and untreated mothers at 17 weeks showed no significant difference in any of the biochemical markers. We surmise that the circulating level of thyroxine was normal in the treated mothers at a critical time before 17 weeks' gestation, but by 17 weeks it was insufficient to meet the growing demands of pregnancy. Treatment should begin as early as possible in pregnancy with the goal of maintaining free thyroxine (FT(4)) in the upper half of the normal reference range and TSH in the lower half of the normal reference range. In view of these data, we believe that all pregnant women should be screened for hypothyroidism as early in pregnancy as possible (or even before conception). To be cost-effective, screening programs should be based on those designed for congenital hypothyroidism, in which filter-paper blood specimens are forwarded to regional laboratories for thyroid function determinations.

A Radioimmunoassay for Human Urinary Prealbumin

1993 ◽  
Vol 30 (4) ◽  
pp. 377-382 ◽  
Author(s):  
R Beetham ◽  
A Dawnay ◽  
C Ghany ◽  
S Dubrey ◽  
J Miles
Keyword(s):  
Urinary Excretion ◽  
Room Temperature ◽  
Reference Range ◽  
Excretion Rate ◽  
Urine Samples ◽  
Creatinine Excretion ◽  
Normal Reference Range ◽  
Normal Reference ◽  
Significant Difference ◽  
Highly Correlated

We describe a validated radioimmunoassay for prealbumin in urine. Using timed overnight urine samples, the normal reference range was less than 10–148μg/L; or less than 1·8–9·6μg/mmol creatinine, excretion in women being significantly greater than in men ( P<0–05); or less than 7–3–114 ng/min with no significant difference in excretion rate between the sexes. Urines exhibited loss of immunoreactivity after storage at — 20°C and thawing. No such loss occurred after storage for 4 weeks at 4°C or room temperature. The urinary excretion of prealbumin was highly correlated with that of albumin ( r = 0·85), and clearance relative to creatinine was 2 × 10−6, the same order as that of albumin.

Predictive Model for Live Birth at 12 Months After Starting In-Vitro Fertilization Treatment

MedPharmRes ◽  
2018 ◽  
Vol 2 (2) ◽  
pp. 5-20
Author(s):  
Vu Ho ◽  
Toan Pham ◽  
Tuong Ho ◽  
Lan Vuong
Keyword(s):  
In Vitro Fertilization ◽  
Live Birth ◽  
Cox Regression ◽  
Financial Burden ◽  
Oocyte Retrieval ◽  
Operating Characteristics ◽  
Vitro Fertilization ◽  
Cox Regression Analysis ◽  
Significant Difference

IVF carries a considerable physical, emotional and financial burden. Therefore, it would be useful to be able to predict the likelihood of success for each couple. The aim of this retrospective cohort study was to develop a prediction model to estimate the probability of a live birth at 12 months after one completed IVF cycle (all fresh and frozen embryo transfers from the same oocyte retrieval). We analyzed data collected from 2600 women undergoing in vitro fertilization (IVF)/intracytoplasmic sperm injection (ICSI) at a single center in Vietnam between April 2014 and December 2015. All patients received gonadotropin-releasing hormone (GnRH) antagonist stimulation, followed by fresh and/or frozen embryo transfer (FET) on Day 3. Using Cox regression analysis, five predictive factors were identified: female age, total dose of recombinant follicle stimulating hormone used, type of trigger, fresh or FET during the first transfer, and number of subsequent FET after the first transfer. The area under the receiver operating characteristics curve for the final model was 0.63 (95% confidence interval [CI] 0.60‒0.65) and 0.60 (95% CI 0.57‒0.63) for the validation cohort. There was no significant difference between the predicted and observed probabilities of live birth (Hosmer-Lemeshow test, p > 0.05). The model developed had similar discrimination to existing models and could be implemented in clinical practice.

Evaluation of normal reference range for thyroid uptake of technetium-99 m in a single centre UK population

2017 ◽  
Author(s):  
Mavin Macauley ◽  
Mohamed Shagwi ◽  
Kim Howe ◽  
Andrew Curry ◽  
Elizabeth Howell ◽  
...  
Keyword(s):  
Reference Range ◽  
Single Centre ◽  
Normal Reference Range ◽  
Normal Reference ◽  
Thyroid Uptake

scholarly journals Introducing intrauterine antibiotic infusion as a novel approach in effectively treating chronic endometritis and restoring reproductive dynamics: a randomized pilot study

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Konstantinos Pantos ◽  
Mara Simopoulou ◽  
Evangelos Maziotis ◽  
Anna Rapani ◽  
Sokratis Grigoriadis ◽  
...  
Keyword(s):  
Fertility Restoration ◽  
Statistical Significance ◽  
Antibiotic Administration ◽  
Oral Antibiotic ◽  
Treatment Rate ◽  
Chronic Endometritis ◽  
Vitro Fertilization ◽  
Significant Difference ◽  
Antibiotic Infusion

AbstractThe chronic nature of Chronic Endometritis (CE) along with the challenging management and infertility entailed, call for cutting-edge therapeutic approaches. This study introduces the novel treatment of intrauterine antibiotic infusion (IAI) combined with oral antibiotic administration (OAA), and it assesses respective performance against the gold standard treatment of OAA. Data sourced herein reports on treatment efficiency and fertility restoration for both patients aiming to conceive naturally or via In Vitro fertilization. Eighty CE patients, 40 presenting with recurrent implantation failure, and 40 with recurrent pregnancy loss, were enrolled in the IVF and the natural conception arm respectively. Treatment was subjected to randomization. Effectively treated patients proceeded with either a single IVF cycle or were invited to conceive naturally over a 6-month period. Combination of IAI and OAA provided a statistically significant enhanced effectiveness treatment rate (RR 1.40; 95%CI 1.07–1.82; p = 0.01). No statistically significant difference was observed regarding the side-effects rate (RR 1.33; 95%CI 0.80–2.22; p = 0.52). No statistically significant difference was observed for either arm regarding live-birth rate. Following an intention-to-treat analysis, employment of IAI corresponds to improved clinical pregnancy rate-albeit not reaching statistical significance. In conclusion, complimentary implementation of IAI could provide a statistically significant enhanced clinical treatment outcome.

scholarly journals A Flexible Multidose GnRH Antagonist versus a Microdose Flare-Up GnRH Agonist Combined with a Flexible Multidose GnRH Antagonist Protocol in Poor Responders to IVF

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Gayem İnayet Turgay Çelik ◽  
Havva Kömür Sütçü ◽  
Yaşam Kemal Akpak ◽  
Münire Erman Akar
Keyword(s):  
Gnrh Agonist ◽  
Gnrh Antagonist ◽  
Poor Responders ◽  
Vitro Fertilization ◽  
Significant Difference ◽  
Gnrh Antagonist Protocol ◽  
Group 2 ◽  
Antagonist Protocol ◽  
Group 1

Objective. To compare the effectiveness of a flexible multidose gonadotropin-releasing hormone (GnRH) antagonist against the effectiveness of a microdose flare-up GnRH agonist combined with a flexible multidose GnRH antagonist protocol in poor responders to in vitro fertilization (IVF).Study Design. A retrospective study in Akdeniz University, Faculty of Medicine, Department of Obstetrics and Gynecology, IVF Center, for 131 poor responders in the intracytoplasmic sperm injection-embryo transfer (ICSI-ET) program between January 2006 and November 2012. The groups were compared to the patients’ characteristics, controlled ovarian stimulation (COH) results, and laboratory results.Results. Combination protocol was applied to 46 patients (group 1), and a single protocol was applied to 85 patients (group 2). In group 1, the duration of the treatment was longer and the dose of FSH was higher. The cycle cancellation rate was significantly higher in group 2 (26.1% versus 38.8%). A significant difference was not observed with respect to the number and quality of oocytes and embryos or to the number of embryos transferred. There were no statistically significant differences in the hCG positivity (9.5% versus 9.4%) or the clinical pregnancy rates (7.1% versus 10.6%).Conclusion. The combination protocol does not provide additional efficacy.

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