Comparison of Left Ventricular Stroke Volume in 2nd- and 3rd-Trimester Fetuses Measured by the Product of VTI and Aortic Annular Area With That Assessed by Simpson's Single-Plane Rule Using the STE Technique.

OBJECTIVES: The aim of the study was to compare left ventricle stroke volume in healthy, eutrophic fetuses in the 2nd and 3rd trimesters evaluated using the velocity time integral and aortic annulus area with left ventricular stroke volume measured using Simpson's single-plane rule and to determine the discrepancy equation. METHODS: The study included 354 fetuses. In each fetus, during the same examination, simultaneous assessment of stroke volume was performed by pulsed-wave Doppler using the product of the velocity time integral and aortic annulus area and by the fetalHQ® software using Simpson's single-plane rule. The Mann-Whitney U test was used to compare the "product-derived" stroke volume and stroke volume using fetalHQ® software values in the 2nd and 3rd trimesters separately. The agreement between the two methods were verified using Bland-Altman analysis. A linear regression model was used to obtain the discrepancy equation. RESULTS: In the 2nd trimester, the mean percentage difference between both the techniques showed that the stroke volume values determined using pulsed-wave Doppler were, on average, 88% higher than the stroke volume values determined using fetalHQ®. The upper limit of agreement between the compared techniques was approximately 146% and the lower limit of agreement was equal to 29.6%. In the 3rd trimester, the results indicated that the stroke volume values determined using pulsed-wave Doppler were, on average, 76% higher than the stroke volume values determined using fetalHQ®. The upper limit of agreement between the compared techniques was approximately 129% and the lower limit of agreement was 23%. Based on the results of the linear regression models, discrepancy formulas of the stroke volume values were obtained. The equations to calculate the predicted mean and standard deviations were used to compute the reference intervals for the mean, 5th and 95th centiles. CONCLUSION: The calculation of left ventricular stroke volume using pulsed Doppler has higher result in relation to stroke volume determined using Simpson's rule significantly. The aortic annulus area showed a higher correlation regarding stroke volume than the velocity time integral in both the 2nd and 3rd trimesters. Stroke volume increased with the increase in aortic annulus area, whereas the velocity time integral remained relatively constant. The retrospective analysis of the collected material enabled the determination of the discrepancy equation.

First-trimester presentation of ultrasound findings in trisomy 13 and validation of multiparameter ultrasound-based risk calculation models to detect trisomy 13 in the late first trimester.

OBJECTIVES: To identify the most common ultrasound patterns of markers and anomalies associated with Patau syndrome (PS), to explore the efficacy of multiparameter sonographic protocols in detecting trisomy 13 (T13) and to analyze the influence of maternal age (MA) on screening performance. METHODS: The project was a prospective study based on singleton pregnancies referred for a first-trimester screening examination. The scan protocol included nuchal translucency (NT), fetal heart rate (FHR), secondary ultrasound markers [nasal bone (NB), tricuspid regurgitation (TR), ductus venosus reversed a-wave (revDV)] and major anomaly findings. RESULTS: The study population comprised 6133 pregnancies: 6077 cases of euploidy and 56 cases of T13. Statistically significant differences were found in MA, FHR, NT, absence of NB, presence of revDV, TR and single umbilical artery. Fourteen cases of T13 (25%) demonstrated no markers of aneuploidy. The best general detection rate (DR) (DR of 78.6% with an false positive rate (FPR) of 1.2%) was obtained for a cutoff of 1/300 utilizing the "NT+T13" algorithm. The logistic regression model revealed that the central nervous system (CNS) anomalies had the greatest odds ratio (of 205.4) for T13. CONCLUSIONS: The effectiveness of the multiparameter sonographic protocol used for T13 screening showed promising results in patients older than 36 years and suboptimal results in patients between 26 and 36 years old. When screening for T13 left heart defects, CNS anomalies, abdominal anomalies, FHR above the 95th percentile, increased NT, revDV and lack of NB should receive specific attention.

Clinical article: screening for trisomy 13 using traditional combined screening versus an ultrasound-based protocol.

AIMS: To compare the screening capability of ultrasonography in detecting trisomy 13 (T13) using a multiparameter sonographic protocol (NT+) with a classical combined screening test (CST) protocol. METHODS: The project was a prospective, multicenter study based on a nonselected mixed-risk population of women referred for a first-trimester screening examination. Each subject was offered a choice between either the gold standard, traditional combined screening test (CSG arm) or the ultrasound-based screening protocol (USG arm). General and MA-based screening performances were checked. RESULTS: The study population comprised 20,887 pregnancies: 12,933 in the CSG arm, including 27 cases of T13, and 7954 in the USG arm, including 30 cases of T13. The DR for T13 was higher in the CSG arm than in the USG arm for all tested cutoff points: 1/50 (88.5 versus 63.3%, respectively), 1/100 (88.5 versus 70%, respectively) and 1/300 (92.3 versus 83.3%, respectively). Using the ROC curves for fixed FPRs of 3 and 5%, the T13 detection rate in our study reached 90 and 93%, respectively, in the USG arm and 92 and 96%, respectively, in the CSG arm. MA influenced the T13 screening performance in the USG arm and reduced the DR in patients <31 years. Such influence was not detected in the CSG arm. CONCLUSIONS: Classic CST was more effective in detecting T13 than the ultrasound-only approach. However, the recommended cutoff of 1/50 showed unsatisfactory results for both traditional CST and the multiparameter sonographic test we proposed.

Polish Society of Gynecology and Obstetrics statement on safety measures and performance of ultrasound examinations in obstetrics and gynecology during the SARS-CoV-2 pandemic.

We present recommendations on performance and safety measures of ultrasound examinations in obstetrics and gynecology during the SARS COV-2 pandemic. The statement was prepared based on the current knowledge on the coronavirus by the Ultrasound Section of the Polish Society of Obstetrics and Gynecology. It has to be noted that the presented guidance is based on limited evidence and is primarily based on experiences published by authors from areas most affected by the virus thus far, such as China, Singapore, Hong Kong, and Italy. We realize that the pandemic situation is very dynamic. New data is published every day. Despite the imposed limitations related to the necessity of social distancing, it is crucial to remember that providing optimal care in safe conditions should remain the primary goal of healthcare providers. We plan to update the current guidelines as the situation develops.

Early fetal cardiac scan as an element of the sonographic first-trimester screening.

Early fetal cardiac scan (EFCS) is becoming an increasingly common element of the first trimester ultrasound screening carried out at 11-14 gestational weeks. It offers the first possibility to detect congenital heart defects (CHD) or, in ambiguous cases, to identify those pregnancies where a more detailed cardiac scan would be required later in pregnancy. The size of the fetal heart at the end of the first trimester and the associated relatively low image resolution make it impossible to capture all cardiac data to inform the ultimate picture. However, even at this stage, cues of anatomical and functional abnormalities can be picked up, which suggest not only a CHD, but also a likelihood of cardiovascular symptoms typical of genetic disorders. EFCS should focus on cardiac position, atrioventricular (AV) connections, AV valve function, initial assessment of ventriculo-arterial (VA) connections and the presence of red flag signs in the three vessel and trachea view (3VTV). Proper use of color Doppler mapping makes it possible to overcome the low resolution of B-mode to a certain extent. Here we present our long-term experience in EFCS.

"Y Sign" at the Level of the 3-Vessel and Trachea View: An Effective Fetal Marker of Aortic Dextroposition Anomalies in the First Trimester.

OBJECTIVES: The "Y sign" at the level of the 3-vessel and trachea view corresponds to thinning of main pulmonary artery and arterial duct and a dilated transverse aortic arch. The purpose of this study was to evaluate the Y sign for the diagnosis of aortic dextroposition anomalies at the time of the first-trimester scan and to assess the screening performance of only the Y sign, only abnormal left axis deviation (axis sign), and their combination for the diagnosis of aortic dextroposition anomalies. METHODS: A prospective evaluation of 6025 pregnant women undergoing first-trimester ultrasonography was conducted. The cardiac axis was measured in all examined patients and considered abnormal (positive axis sign) at greater than 57 °. The frequency of the Y sign and the axis sign was assessed for this population, and their screening performance for the diagnosis of aortic dextroposition anomalies was calculated. RESULTS: A total of 5775 patients fulfilled the inclusion criteria. Aortic dextroposition anomalies were diagnosed in 17 cases (tetralogy of Fallot in 8 and Fallot-like double-outlet right ventricle in 9). The Y sign was found in 18 of 5775 (0.3%) fetuses examined, of which 7 of 18 were confirmed with tetralogy of Fallot, 9 of 18 with a Fallot-like double-outlet right ventricle, and 2 of 18 with pulmonary stenosis. A positive axis sign of greater than 57 ° was found in 20 fetuses, including 4 with normal heart anatomy. The sensitivity values of the Y sign, the axis sign, and their combination were 94%, 76%, and 94%, respectively. CONCLUSIONS: Visualization of the Y sign should increase the suspicion of aortic dextroposition anomalies in the late first trimester. The screening performance of the Y sign alone and in combination with an abnormal cardiac axis was high and may aid in the early diagnosis of aortic dextroposition anomalies in the fetus.

Screening performance for callosal agenesis in prenatal life. Single center study.

OBJECTIVES: 1) To analyze screening performance of second trimester scan for ACC, 2) to evaluate the agreement between ultrasound and MRI and 3) to compare prenatal and postnatal diagnosis. METHODS: It was a prospective observational study. All patients with fetuses suspected of ACC were referred to prenatal MRI (pMRI). RESULTS: One subject was not confirmed by pMRI with the diagnosis of ACC. This case demonstrated partial ACC in neonatal MRI (nMRI). CONCLUSION: Sensitivity of second trimester scan for callosal agenesis of 73% and specificity of 99%. Prenatal MRI and US has similar amount of misdiagnoses.

Combined screening test for trisomy 21 - is it as efficient as we believe?

OBJECTIVES: To compare two first-trimester screening strategies: traditional combined screening and the one based on ultrasound markers only. We investigated the effect of maternal age (MA) on the screening performance of both of these strategies. METHODS: This was a prospective observational study based on a non-selected mixed-risk population of 11,653 women referred for first-trimester screening. The study population was divided in two groups: combined screening (CS) and ultrasound-based screening (US). Absolute risk was calculated to determine the influence of MA on screening performance. RESULTS: The CS arm comprised 5145 subjects including 51 cases of trisomy 21 (T21), and the US arm comprised 5733 subjects including 87 subjects with T21. Seven hundred and seventy-five subjects were excluded from the study. For a false positive rate (FPR) of 3%, the detection rate (DR) of T21 in CS arm was 78% vs. 90% in US arm. For 5% FPR, DR was 84% and 94% in CS and US arm, respectively. MA had an influence on DR positive rates in CS: both DR and FPR for T21 increased with advance in MA. CONCLUSIONS: The US protocol showed higher DR of T21 compared to the CS one. It may be considered as a viable alternative to CS for T21 where access to biochemical testing is limited.

Screening for trisomy 18 using traditional combined screening vs. ultrasound-based protocol in tertiary center environment.

OBJECTIVES: To compare the screening performances of combined screening test risk algorithm for trisomy 18 (T18) using various cutoffs with a multiparameter ultrasound-based method. To compare the general and maternal age (MA)-based screening performances for T18 by means of combined screening and an ultrasound-based method. METHODS: This was a prospective, multicenter study based on a mixed-risk non-selected population of women referred to referral centers for a first-trimester screening. Each subject was offered a choice between either a traditional combined screening (CSG arm) or an ultrasound-based screening (USG arm). General and MA-based screening performances were measured. RESULTS: The study population comprised 10 820 pregnancies as follows: 5132 in the CSG arm, including 28 cases of T18, and 5688 in the USG arm, including 29 cases of T18. In the CSG arm, the detection rate (DR) for T18 at a false-positive rate (FPR) of 3% was 86%, whereas the DR was 100% for the USG arm. MA influenced the T18 screening performance in the CSG arm and reduced the DR in MA ranges <26 years and 31-35 years. This influence was not observed in the USG arm. CONCLUSIONS: Only, a multiparameter ultrasound-based screening method may be considered an effective alternative to combined screening for T18 screening. The technique exhibits high and stable DRs irrespective of MA.

What are the most common first-trimester ultrasound findings in cases of Turner syndrome?

OBJECTIVES: To identify the most common first-trimester ultrasound findings in Turner syndrome (TS). To evaluate which first-trimester findings can be best used to predict the likelihood of TS. METHODS: This was a prospective study, based on singleton pregnancies. The referrals included 6210 patients. Scan protocol covered a review of the early fetal anatomy and markers of aneuploidy. RESULTS: Study population comprised 5644 pregnancies: 5613 with a normal karyotype and 31 cases of TS. Statistically significant differences (p < 0.05) were found between euploidy and TS groups in terms of nuchal translucency (NT; 1.7 mm versus 8.8 mm) and fetal heart rate (FHR; 160 versus 171 beats per minute). None of the TS cases demonstrated absent markers of aneuploidy as opposed to 5133 (91.4%) cases of euploidy. NT and abnormal DV flow (aDV or revDV) were the most common markers found in combination in TS cases (n = 17; 54.8%). 27 (0.5%) cases of euploidy and 17 (54.8%) cases of TS revealed congenital heart defects. Fetal hydrops was observed in 14 cases of TS (43.8%) and in 5 of euploidy (0.1%). In backward regression model, NT > 3.5 mm and right dominant heart (RDH) augmented the risk of TS risk by 991 and 314 times, respectively. CONCLUSIONS: First-trimester sonography is a feasible method to identify the most characteristic features of TS fenotype. When the first-trimester pattern of TS is considered, a highly thickened NT, FHR above the 95th percentile, abnormal ductus venosus velocimetry, fetal hydrops, and RDH should be specifically searched for.

Assessment of ovarian reserve in patients with ovarian endometriosis following laparoscopic enucleation of a cyst accompanied by CO2 laser ablation or electroablation.

INTRODUCTION: Endometriosis affects about 5-15% of women in the reproductive period. One of the most important complications of pelvic endometriosis is infertility. OBJECTIVE: The assessment of ovarian endometriosis therapy with the use of combined laparoscopic techniques (cyst enucleation with electroablation/CO2 laser ablation) and their influence on the preservation of the ovarian reserve. MATERIALS AND METHOD: Fifty-eight patients aged 19-40 with diagnosed ovarian endometriosis underwent pre-surgical assessment of their ovarian reserve consisting of antral follicle count (AFC), basal ovarian volume (BOV) and FSH level. Twenty-four patients underwent laparoscopic enucleation of the cyst with CO2 laser ablation and thirty-four patients had enucleation with successive electroablation. The ovarian reserve of the patients was reassessed during follow-up assessments three and six months after surgery. RESULTS: In neither group was there a statistically significant decrease of AFC after three or six months. Additionally, in the group that underwent enucleation with electroablation, a significant drop in FSH level was observed after three months. This group was characterized by a statistically significant decrease in BOV at the three- and six-month follow-up assessments. 17% patients had ovarian relapses visible in the ultrasound scan at the six month follow-up assessment. In the group of patients who underwent enucleation with CO2 laser ablation, BOV had not changed significantly, while a high rate of ovarian relapses (39%) was observed. CONCLUSIONS: The lack of significant changes in AFC level after the surgeries suggests an initial positive evaluation of both techniques in the context of ovarian reserve preservation. The detrimental BOV decrease after enucleation with electroablation and high relapse rate after enucleation after CO2 laser ablation shows that further research is needed in order to optimize the laparoscopic techniques of endometriosis therapy.

How Effective Is First-Trimester Screening for Trisomy 21 Based on Ultrasound Only?

OBJECTIVE: To evaluate the most common first-trimester ultrasound features of fetuses with trisomy 21 (T21) and to examine the screening performance for Down syndrome (DS) using only ultrasound-based protocols. To investigate whether maternal age (MA) has an impact on the efficacy of the ultrasound-based screening methods. METHODS: In a prospective study, 6,265 patients were examined. Two ultrasound-based risk calculation protocols were applied: 'NT' (based on nuchal translucency) and 'NT+' (based on NT and secondary markers). RESULTS: A total of 5,696 patients were enrolled for analysis; 84 subjects with T21 were identified. Combinations of abnormal ultrasound markers were observed in only 1.2% of euploid fetuses compared to 71.5% of fetuses with T21. Among 17.9% of DS cases with cardiac anomaly, 14.3% comprised atrioventricular septal defects. For a false-positive rate of 3%, the detection rates of T21 were 73.8 and 91.7% for the 'NT' and 'NT+' protocols, respectively. The efficacy of both methods was affected by MA. CONCLUSIONS: Most of the fetuses with DS demonstrate a combination of ultrasound markers of aneuploidy in the first trimester. The 'NT+' protocol is efficient and provides comparable performance as a combined screening test. It is a valuable method, especially when the access to biochemical analysis is restricted.

First trimester severe ductus venosus flow abnormalities in isolation or combination with other markers of aneuploidy and fetal anomalies.

BACKGROUND: Altered flow in ductus venosus (DV) may be caused by the changes in preload or afterload. Its association with aneuploidy and congenital heart defects (CHDs) was widely described. OBJECTIVES: The aim of this study was to examine the incidence of a reversed a-wave in DV flow (revDV) and the absence of DV (noDV), their coincidences with other markers of aneuploidy or fetal abnormalities in a mixed-risk population. METHODS: The study group covered women who underwent an ultrasound scan between 11+0 and 13+6 weeks' gestation. Applied inclusion criteria: Singleton pregnancies with known pregnancy outcome and a crown-rump length of 45-84 mm. RESULTS: A total of 5811 cases, including 137 aneuploidies, met the inclusion criteria: 35 subjects of noDV, 189 of revDV and 5587 of normal DV flow. The incidence of noDV in euploidy was 0.47%, and in aneuploidy 5.8%. The incidence of revDV in euploidy was 2.46%, and in aneuploidy 35.7%. Among aneuploidy, the highest prevalence of noDV was found in monosomy 45X. revDV showed the highest prevalence in trisomy 18. Isolated noDV was only found in euploidy. Isolated revDV subjects were only observed in euploidy and trisomy 21. Any combination of revDV with additional markers showed high incidence in major trisomies. Extracardiac anatomy and abnormal cardiac findings showed a higher prevalence in noDV and revDV cases. CONCLUSIONS: The presence of noDV might be useful in suspicion of monosomy X among cases with increased nuchal translucency, as well as in differentiating them from other aneuploidies. The combinations of aneuploidy markers with revDV are strong indicators of aneuploidy. revDV alone is a poor screening tool for aneuploidy and euploidy with CHD.

How effective is ultrasound-based screening for trisomy 18 without the addition of biochemistry at the time of late first trimester?

UNLABELLED: Trisomy 18 (T18) remains the second most common aneuploidy. It is associated with multiple congenital anomalies and causes intrauterine fetal demise in the most severe cases. OBJECTIVES: To examine the screening performance of ultrasound-based protocols for detecting T18, we aimed to determine the most common signs and their prevalence in fetuses with T18 to develop logistic regression model. METHODS: This was a prospective study based on singleton pregnancies examined at gestation 11+0 to 13+6. The referrals constituted 6210 patients. Scan protocol enclosed a systematic review of the entire early fetal anatomy, including fetal cardiac evaluation and sonographic signs of aneuploidy. RESULTS: Our study population comprised 5650 pregnancies: 5613 cases with a normal karyotype and 37 cases with T18. The mean nuchal translucency (NT) thickness in the subgroup of euploidy was 1.7 and in the subgroup of T18 it was 5.4. No statistically significant differences were found in terms of maternal age. One case of T18 (2.7%) demonstrated no markers of aneuploidy as opposed to 5111 cases of euploidy (91.1%). Extracardiac malformations were identified in 13 cases of T18 (35.1%) and in 48 cases of euploidy (0.8%). Congenital heart defects were observed in 26 cases of T18 (70.3%) and in 27 cases of euploidy (0.5%). CONCLUSIONS: Our results showed good screening performance of ultrasound-based risk calculation models. When the first trimester pattern of T18 is considered, an increased NT, tricuspid regurgitation, single umbilical artery, omphalocele and right dominant heart should be specifically searched for.

[Cesarean scar pregnancy]. / Ciaza w bliznie po cieciu cesarskim.

Pregnancy in the uterine scare after previous caesarean section is the rarest type of ectopic pregnancy Due to the possibility of life-threatening complications, cesarean scar pregnancy (CSP) needs rapid and proper diagnosis and management. Hereby we present 3 cases of women with CSP, diagnosed and treated at the Department of Gynecology and Obstetrics of Jagiellonian University Medical College, in Krakow, in 2013, as well as literature review.

Prenatal detection of congenital heart defects at the 11- to 13-week scan using a simple color Doppler protocol including the 4-chamber and 3-vessel and trachea views.

OBJECTIVES: The first goal of this study was to analyze the diagnostic performance of the 4-chamber view, 3-vessel and trachea view, and their combination in color mapping during early cardiac evaluations for selecting cases suspicious of congenital heart defects. The second goal was to describe the most common abnormal flow patterns at the levels of the 4-chamber and 3-vessel and trachea views in the late first trimester. METHODS: We conducted a prospective observational study in which a simple cardiac sonographic protocol was applied in fetuses at gestational ages of 11 weeks to 13 weeks 6 days. RESULTS: A total of 1084 patients with known postnatal or autopsy findings were included in the study. The median maternal age was 32.3 years (range, 27-40 years). The median crown-rump length was 62.2 mm (range, 45-84 mm). Overall, there were 35 cases with a confirmed congenital heart defect (3.22%), including 16 accompanied by aneuploidy. We found that our simple first-trimester cardiac protocol was an effective screening method for congenital heart defects. The most effective approach of the 3 evaluated by us was the combined application of the 4-chamber and 3-vessel and trachea views in color mapping compared to the 4-chamber and 3-vessel and trachea views alone. We defined the most common ventricular inflow patterns and the V sign. The technique we used was simple and easy to reproduce. CONCLUSIONS: We confirmed that evaluation by two basic cardiac views allows for selection of most cases with a univentricular heart, atrioventricular septal defects, coarctation of the aorta, pulmonary stenosis, pulmonary atresia, and conotruncal defects.

[Carbon monoxide poisoning in pregnant woman]. / Zatrucie tlenkiem wegla u kobiety ciezarnej.

Carbon monoxide poisoning is one of the most frequent types of poisoning caused by gases. Exposure of a pregnant woman to carbon monoxide is connected with transmission of this gas to her fetus what may cause oxygen deficiency, and further, the damage to its organs. The article describes a case of carbon monoxide poisoning of a 28-weeks pregnant woman who was treated in a hyperbaric chamber. Therapy was successful and the woman gave birth to a healthy, full term infant. In case of poisoning to a pregnant woman the above seems to be the most advantageous solution.

First trimester tricuspid regurgitation and fetal abnormalities.

BACKGROUND: Tricuspid regurgitation (TR) is a common sonographic finding during the fetal life. It has been reported in 7% of normal fetuses. It may be associated with aneuploidy and with both cardiac and extracardiac defects. OBJECTIVES: In this study, we have looked at the characteristics of fetuses with and without TR at 11+0 to 13+6 weeks' gestation. Groups were compared with respect to the following variables: prevalence of chromosomal defects; other markers of aneuploidy; fetal cardiac; and extracardiac anomalies. METHODS: The study group included women, who underwent an ultrasound examination at 11-13+6 weeks' gestation between 2009 and 2012. The inclusion criteria were singleton pregnancies with crown-rump length measurements of 45-84 mm where the pregnancy outcome was known. RESULTS: Some 1075 patients met our inclusion criteria including 979 fetuses without TR and 96 with TR. There were 72 cases of aneuploidy diagnosed (6.7%). Isolated TR was found in 53 euploid fetuses (5.2%). All of the TR(+) aneuploid fetuses (n=40) had additional ultrasound markers present. Extracardiac anatomy showed a higher prevalence of abnormalities in the group of TR positives (12.5%) vs. TR negatives (1.6%). Abnormal cardiac findings were more frequent in the TR-positive group independently of chromosomal status and were found in 18.8% of fetuses with TR and in 1.9% with a normal tricuspid flow. CONCLUSIONS: TR in combination with other markers is the strongest predictor for aneuploidy. TR, as an isolated parameter, is a poor screening tool both for all and for each individual chromosomal abnormality and congenital cardiac defects.

Ovarian reserve assessment in women with different stages of pelvic endometriosis.

INTRODUCTION: Endometriosis is defined as the appearance of ectopic endometrial cells outside the uterine cavity. Ectopic cells demonstrate functional similarity to eutopic cells, but structural and molecular differences are significant and manifest themselves in gene expression of the metalloproteinase genes, integrin or the Bcl-2 gene. Pelvic pain remains to be the main symptom of the disease. Endometriosis may cause dysfunction of the reproductive system and lead to infertility. Pathogenesis of infertility in endometriosis is based on its influence on the hormonal, biochemical and immunological changes in the eutopic endometrium, as well as structural damages of the ovaries and the fallopian tubes. OBJECTIVES: The aim of the study was to assess the ovarian reserve in patients with endometriosis. MATERIAL AND METHODS: A total of 39 patients (aged 22-34 years) with different stages of endometrial changes were recruited for the study. The number of antral follicles was rated by vaginal ultrasonography and the level of FSH was measured between days 1-3 of the menstrual cycle. The stage of the disease was established after laparoscopy with the rASRM scale. RESULTS: No statistically significant correlation between the number of follicles (AFC), the level of FSH and the stage of endometriosis was found. CONCLUSIONS: Evaluation of the number of antral follicles and measurements of the FSH level do not allow to predict the ovarian reserve in women with endometriosis.