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Featured researches published by Tomasz Banas.


Journal of Minimally Invasive Gynecology | 2013

Two- and Three-Dimensional Ultrasonography and Sonohysterography versus Hysteroscopy With Laparoscopy in the Differential Diagnosis of Septate, Bicornuate, and Arcuate Uteri

A. Ludwin; Kazimierz Pityński; I. Ludwin; Tomasz Banas; Anna Knafel

STUDY OBJECTIVE To estimate the diagnostic accuracy and to compare the diagnostic value of 3-dimensional sonohysterography (3D-SIS), 3-dimensional transvaginal ultrasonography (3D-TVS), 2-dimensional sonohysterography (2D-SIS), and 2-dimensional transvaginal ultrasonography (2D-TVS) (initial and expert diagnosis) in the differential diagnosis of septate, bicornuate, and arcuate uteri. DESIGN Prospective clinical study (Canadian Task Force II-2). SETTING University hospital and private hospital and clinic. PATIENTS A total of 117 women with a history of recurrent abortions or infertility and a 2D-TVS initial diagnosis of a septate, bicornuate, or arcuate uterus. INTERVENTIONS Expert 2D-TVS, 3D-TVS, 2D-SIS, and 3D-SIS performed by experienced examiners and hysteroscopy with laparoscopy to establish the final diagnosis. MEASUREMENTS AND MAIN RESULTS Hysteroscopy performed in conjunction with laparoscopy (HL) detected 23 arcuate, 60 septate, 22 bicornuate, and 12 normal uteri. 3D-SIS showed perfect diagnostic accuracy (100.0%) in general detection of uterine abnormalities, compared with initial 2D-TVS (77.8%), expert 2D-TVS (90.6%), 2D-SIS (94.0%), and 3D-TVS (97.4%). In the overall diagnosis of uterine anomalies, all of the diagnostic methods had statistically significantly better diagnostic value than initial 2D-TVS (p < .001), whereas 3D-SIS was the only method that was better than expert 2D-TVS (p < .001). CONCLUSIONS Although 3D-SIS was identical to HL, with the highest accuracy, there was no significant difference in diagnostic value between 3D-TVS with 2D-SIS and 3D-SIS or between expert 2D-TVS and 3D-TVS with 2D-SIS. The high diagnostic value of these ultrasonographic tools questions the need for endoscopy in the differential diagnosis of the most common congenital uterine anomalies.


Journal of Obstetrics and Gynaecology Research | 2005

Spontaneous uterine rupture at 35 weeks' gestation, 3 years after laparoscopic myomectomy, without signs of fetal distress.

Tomasz Banas; Marek Klimek; Andrzej Fugiel; Krzysztof Skotniczny

Laparoscopic myomectomy (LM) is a recently developed surgical technique, and every obstetrician should be aware of its possible complications, which can occur not only during labor but also during pregnancy. We report a case of a primigravid woman who was hospitalized at 35 weeks’ gestation because of irregular abdominal pain. She conceived spontaneously 3 years after LM. After a 20‐h stay on the obstetrician ward due to increased abdominal tenderness and vaginal bleeding, the patient was qualified for an emergency cesarean section without any symptoms of fetal distress in cardiotocography. During cesarean section a newborn with 9 Apgar points was delivered and a rupture of the uterine wall was seen. Dehiscence of the pregnant uterus following LM is an incidental case, and can therefore be misdiagnosed. Close attention should be paid to every pregnancy in previously operated uteri as the dehiscence of the pregnant uterus can occur without symptoms of fetal distress.


Fertility and Sterility | 2014

Diagnostic accuracy of three-dimensional sonohysterography compared with office hysteroscopy and its interrater/intrarater agreement in uterine cavity assessment after hysteroscopic metroplasty.

A. Ludwin; I. Ludwin; M.J. Kudla; Kazimierz Pityński; Tomasz Banas; Robert Jach; Anna Knafel

OBJECTIVE To compare the diagnostic accuracy of three-dimensional sonohysterography (3D-SIS) and office hysteroscopy in uterine cavity assessment after hysteroscopic metroplasty (HM) and determine the interrater/intrarater agreement for 3D-SIS. DESIGN Prospective observational study. SETTING University hospital, private hospital, and clinic. PATIENT(S) One hundred forty-one women undergoing HM for septate uterus with a history of miscarriage and/or infertility. INTERVENTION(S) 3D-SIS and office hysteroscopy at 6-8 weeks after HM. MAIN OUTCOME MEASURE(S) Shape of the uterine cavity, length of the fundal notch (≥1 or <1 cm), and the presence of intrauterine adhesions were assessed, and the interrater/intrarater agreement of 3D-SIS was evaluated in 30 randomly selected patients. RESULT(S) Uterine abnormalities were detected with the use of hysteroscopy in 18 (12.8%) of 141 women. 3D-SIS was highly accurate (97.2%), sensitive (97%), and specific (100%), with a positive predictive value of 100% and a negative predictive value of 85%. The diagnostic values of hysteroscopy and 3D-SIS were not significantly different (McNemar test). 3D-SIS showed substantial interrater/intrarater agreement regarding overall uterine cavity evaluation (κ = 0.79 and 0.78, respectively). CONCLUSION(S) 3D-SIS demonstrated substantial interrater/intrarater agreement for the postoperative evaluation of the uterine cavity, being as diagnostically accurate as hysteroscopy. The use of second-look hysteroscopy may be limited to cases that require reoperation.


Gynecologic and Obstetric Investigation | 2007

The Obstetrical History in Patients with Pfannenstiel Scar Endometriomas – An Analysis of 81 Patients

Lukasz Wicherek; Marek Klimek; Joanna Skręt-Magierło; Artur Czekierdowski; Tomasz Banas; Tadeusz Popiela; Janusz Kraczkowski; Jerzy Sikora; Marcin Opławski; Agata Nowak; Andrzej Skręt; Antoni Basta

Introduction: The participation of immune tolerance during pregnancy was suggested to be an important factor predisposing to the implantation of decidual cells after cesarean section in Pfannenstiel scar. Delivery at term is related to the termination of immune tolerance to fetal antigens that is maintained throughout pregnancy. Substantial proportion of cesarean section deliveries is performed before the onset of true term labor. The aim of this study was to analyze the clinical symptoms of spontaneous beginning of labor in pregnant women in whom cesarean sections were performed and in whom Pfannenstiel scar endometriomas were observed during follow-up. Materials and Methods: We have retrospectively analyzed 81 patients following the surgical removal of scar endometrioma after cesarean section. Obstetrical histories of cesarean sections in the number of 5,370 preceding the occurrence of the scar endometrioma were analyzed. These data were collected in six different Gynecological and Obstetrical wards in Malopolska Province in Poland. Analysis of data was started by the retrospective evaluation of regular uterine contractions, uterine cervix ripening before cesarean section and the indications for surgery. Results: In 67 women from the group of 81 patients cesarean sections were performed with unripe uterine cervix and without the presence of regular uterine contractions. Elective indications for cesarean sections were predominant in this group of women. The relative risk of scar endometriomas occurrence following cesarean sections performed before onset of labor in comparison to cesarean sections following spontaneous onset of labor was statistically significantly higher [RR = 2.16, 95% CI = 1.21–3.83; OR = 2.18, 95% CI = 1.22–3.89]. Conclusions: Cesarean section performed before spontaneous onset of labor may increase substantially the risk of occurrence of scar endometriomas.


Human Reproduction | 2014

Reply: Are the ESHRE/ESGE criteria of female genital anomalies for diagnosis of septate uterus appropriate?

A. Ludwin; I. Ludwin; Kazimierz Pityński; Robert Jach; Tomasz Banas

Sir, We are following with interest the European Society of Human Reproduction and Embryology/European Society for Gynaecological Endoscopy (ESHRE/ESGE) initiative to create a new classification of female genital tract congenital anomalies (Grimbizis et al. 2013). We applied the European criteria routinely using three-dimensional (3D) ultrasonography, while simultaneously classifying our patients based on the American Society for Reproductive Medicine (ASRM) criteria (Buttram et al. 1988), complemented by additional common morphometric criteria used to differentiate septate, bicornuate and arcuate uteri (Bermejo et al. 2010, Ludwin et al. 2013). We encountered three problems: (i) practical adaptation of the ESHRE–ESGE classification criteria for septate uterus diagnosis, (ii) an increased frequency of septate uterus diagnoses and all uterine congenital anomalies according to the ESHRE–ESGE compared with the ASRM classification (because a septate uterus was diagnosed in cases where uteri fulfilled previous morphometric criteria for arcuate and in some cases normal uteri) and (iii) potentially important clinical implications of the new classification. We believe that application of ESHRE–ESGE criteria may cause difficulties because (i) the thickness of the uterine wall as the reference value for the septate uterus diagnosis may vary in different regions of the uterus. Thus, it is important to determine where and how it should be measured and (ii) the original definition of septate uterus is an abnormally shaped uterine cavity. The ratio of myometrial thickness to the size of the internal fundal indentation may not reflect the actual anatomical relationships in the uterus and lead to false diagnoses (Fig. 1). Another drawback of the relative criteria is that they are not compatible with endoscopic techniques since myometrial thickness cannot be assessed. The application of the ESHRE/ESGE criteria may have serious clinical implications. The diagnosis of uterine septum on the basis of relative ESHRE/ESGE criteria is not supported by retrospective results and prospective studies of corrective surgery. This applies to eligibility for hysteroscopic metroplasty of patients with recurrent miscarriages who have a small internal fundal indentation; the proposed treatment may not improve obstetric results. A more serious concern is that prophylactic metroplasty may be performed in these cases prior to assist reproductive technology procedures. Additionally, the new classification may affect the assessment of anatomical results of corrective surgery, which could result in frequent repeat procedures, possibly without any significant effect on reproductive performance. This might affect the decision to re-operate in cases whereprevious retrospective studies suggested no indication for complementary metroplasty (residual septum


Reproductive Biology and Endocrinology | 2006

Comparison of RCAS1 and metallothionein expression and the presence and activity of immune cells in human ovarian and abdominal wall endometriomas

Lukasz Wicherek; Magdalena Dutsch-Wicherek; Krystyna Galazka; Tomasz Banas; Tadeusz Popiela; Agata Lazar; Beata Kleinrok-Podsiadlo

BackgroundThe coexistence of endometrial and immune cells during decidualization is preserved by the ability of endometrial cells to regulate the cytotoxic immune activity and their capability to be resistant to immune-mediated apoptosis. These phenomena enable the survival of endometrial ectopic cells. RCAS1 is responsible for regulation of cytotoxic activity. Metallothionein expression seems to protect endometrial cells against apoptosis. The aim of the present study was to evaluate RCAS1 and metallothionein expression in human ovarian and scar endometriomas in relation to the presence of immune cells and their activity.MethodsMetallothionein, RCAS1, CD25, CD69, CD56, CD16, CD68 antigen expression was assessed by immunohistochemistry in ovarian and scar endometriomas tissue samples which were obtained from 33 patients. The secretory endometrium was used as a control group (15 patients).ResultsThe lowest metallothionein expression was revealed in ovarian endometriomas in comparison to scar endometriomas and to the control group. RCAS1 expression was at the highest level in the secretory endometrium and it was at comparable levels in ovarian and scar endometriomas. Similarly, the number of CD56-positive cells was lower in scar and ovarian endometriomas than in the secretory endometrium. The highest number of macrophages was found in ovarian endometriomas. RCAS1-positive macrophages were observed only in ovarian endometriomas. CD25 and CD69 antigen expression was higher in scar and ovarian endometriomas than in the control group.ConclusionThe expression of RCAS1 and metallothionein by endometrial cells may favor the persistence of these cells in ectopic localization both in scar following cesarean section and in ovarian endometriosis.


Journal of Minimally Invasive Gynecology | 2013

Transrectal Ultrasound-Guided Hysteroscopic Myomectomy of Submucosal Myomas With a Varying Degree of Myometrial Penetration

A. Ludwin; I. Ludwin; Kazimierz Pityński; Pawel Basta; Antoni Basta; Tomasz Banas; Robert Jach; Marcin Wiechec; Rita Grabowska; Klaudia Stangel-Wójcikiewicz; Tomasz Milewicz; Agnieszka Nocun

STUDY OBJECTIVE To predict the 1-step complete resection rate after transrectal ultrasound-guided hysteroscopic myomectomy and to determine the usefulness of intraoperative transrectal ultrasonography (TRUS) in monitoring hysteroscopic electroresection of submucosal myomas. DESIGN Prospective cohort study (Canadian Task Force classification II-1). SETTING University hospital. PATIENTS One hundred twenty women with symptomatic (abnormal uterine bleeding or reproductive disorder), single, submucosal myomas underwent hysteroscopic electroresection. Groups 1 and 2 were monitored, respectively, with or without TRUS. Anatomical inclusion criteria were myoma ≤5 cm and myometrial free margin ≥3 mm above the myoma. INTERVENTIONS Myomas were evaluated preoperatively via sonohysterograpy and were graded according to the guidelines outlined by the European Society of Hysteroscopy (ESH), including size and myometrial free margin, and according to the STEPW (size, topography, extension, penetration, and lateral wall) classification. On the basis of sonographic findings, patients with myomas >3 cm received gonadotropin-releasing hormone therapy for 1 to 3 months. Hysteroscopic myomectomy was performed with or without TRUS guidance. At 4 to 8 weeks after the initial procedure, postoperative transvaginal ultrasonography, sonohysterography, or second-look hysteroscopy was performed. MEASUREMENTS AND MAIN RESULTS In the TRUS group, a significantly higher percentage of 1-step complete resections was observed than in the group without TRUS (91% vs 73%) (p = .02). This was associated with a statistically significant difference in the subgroups of myomas that were deeply penetrating into the myometrium (89% vs 55%) (p < .01). One-way logistic analysis of data for all treated patients indicated the use of TRUS, as well as the ESH and STEPW classifications, as significant factors influencing the 1-step complete resection. At multivariable logistic regression analysis, use of TRUS (odds ratio [OR], 2.74; p < .001), myomas graded 0 or 1 according to ESH (OR, 3.55; p < .001), and size <3 cm (OR, 2.35; p < .05) were significantly associated with 1-step complete resection (area under the curve, 0.80; p < .001). In the TRUS group there were two significant predictors: size <3 cm (OR = 5.21; p < .05) and myometrial free margin <5 mm (OR, 0.18; p < .05). CONCLUSION Intraoperative use of TRUS during hysteroscopic myomectomy increases the chance of complete 1-step removal of submucosal myomas that deeply penetrate the myometrium.


Human Reproduction | 2017

Accuracy of hysterosalpingo-foam sonography in comparison to hysterosalpingo-contrast sonography with air/saline and to laparoscopy with dye

I. Ludwin; A. Ludwin; Marcin Wiechec; Agnieszka Nocun; Tomasz Banas; Pawel Basta; Kazimierz Pityński

Study question What is the diagnostic accuracy of 2D/3D hysterosalpingo-foam sonography (HyFoSy) and 2D/3D-high-definition flow Doppler (HDF)-HyFoSy in comparison to laparoscopy with dye chromotubation (as the reference method) and 2D air/saline-enhanced hysterosalpingo-contrast sonography (HyCoSy) (as the initial index test)? Summary answer 2D/3D-HDF-HyFoSy had the best diagnostic accuracy and was the only method that did not significantly differ from the reference method, while both 2D/3D-HyFoSy and 2D/3D-HDF-HyFoSy had significantly higher accuracy than 2D-air/saline-HyCoSy. What is known already Previous studies on X-ray hysterosalpingography and laparoscopy and dye as the reference standard have undermined the impact of older commercial contrast agents on the accuracy of ultrasound tubal patency tests. Recently, HyFoSy was reported to have very high accuracy in a small pilot study in comparison to laparoscopy and dye, and had a very high positive predictive value (PPV) for medical tubal occlusion. A new Doppler sonographic technique, known as HDF imaging with better axial resolution, fewer blooming artifacts and higher sensitivity than color and power Doppler imaging, has been introduced. Study design, size, duration A prospective observational study was performed on 132 women (259 Fallopian tubes) consecutively enrolled between 2013 and 2015. Participants/materials, setting, methods This study included infertile women of reproductive age who previously had not been examined for tubal patency and who presented for the evaluation to the university hospital, private hospital and clinic at which this study was conducted. 2D-Air/saline-HyCoSy, 2D/3D-HyFoSy and 2D/3D-HDF-HyFoSy and laparoscopy were performed independently by experienced readers. During HyFoSy, the 3D mode was used for standardization of pelvic scanning and observations of contrast flow without diagnosis after volume acquisition. Sensitivity, specificity, negative and positive predictive value (NPV and PPV), negative and positive-likelihood ratio (LR- and LR+) and 95% CI were calculated. McNemars test and relative predictive values (a comparison of NPV and PPV) were used to compare all the index tests. Main results and the role of chance 2D-Air/saline-HyCoSy, 2D/3D-HyFoSy and 2D/3D-HDF-HyFoSy indicated that 46 (17.8%), 27 (10.4%) and 24 (9.2%) of the 259 tubes were occluded, respectively; additionally, inconclusive results were obtained for 8 (3%), 5 (1.9%) and 3 (1.2%) tubes, respectively. The reference method revealed 18 (6.9%) occluded Fallopian tubes. 2D-Air/saline-HyCoSy had a high NPV (99.5%) that was similar to that of 2D/3D-HyFoSy (99%) and 2D/3D-HDF-HyFoSy (99.6%) (P > 0.05), but had a very low PPV (30.4%). The use of 2D/3D-HyFoSy, especially 2D/3D-HDF-HyFoSy, which had a significantly higher PPV (48% and 71%, P < 0.05 and P < 0.01; respectively), resulted in fewer false positive and inconclusive findings than the use of 2D-air/saline-HyCoSy. The LR- and LR+ was 0.14 and 14.8, respectively, for 2D/3D-HyFoSy, 0.06 and 32.1, respectively, for 2D/3D-HDF-HyFoSy, and 0.08 and 6.9, respectively, for 2D-air/saline-HyCoSy. The number of inconclusive or positive results per patient was significantly fewer with 2D/3D-HyFoSy (odds ratio, OR = 0.5, CI = 0.3-0.95, P < 0.05) and 2D/3D-HDF-HyFoSy (OR = 0.4, 95% CI = 0.2-0.8, P < 0.01) than with 2D-air/saline-HyCoSy. Limitations, reasons for caution An unselected infertile population with a low prevalence of tubal occlusion is suitable for estimating the diagnostic accuracy of imaging tests only as a screening tool. Wider implications of the findings These findings can be used to establish a diagnostic strategy with high accuracy but minimum invasiveness and limited use of contrast agents and sophisticated technology. 2D-Air/saline-HyCoSy, which has a high NPV, is suitable as an initial test and basic screening method, but 2D/3D-HDF-HyFoSy, which has a significantly higher PPV, can be used as a standard to verify any questionable or positive results obtained with 2D HyCoSy. This strategy may signficantly reduce the need for laparoscopy as a reference standard. Study funding/competing interest(s) There was no external funding for this study, and the authors have no conflicts of interest to declare. Trial registration number N/A.


Journal of The Society for Gynecologic Investigation | 2006

Analysis of Free Hemoglobin Level and Hemoglobin Peptides from Human Puerperal Uterine Secretions

Paweł Mak; Lukasz Wicherek; Piotr Suder; Adam Dubin; Tomasz Banas; Irena Kaim; Marek Klimek

Objective: Hemocidins are a novel class of antibacterial peptides generated proteolytically from hemoglobin. These peptides play a particularly important role in maintaining vaginal homeostasis during menstrual bleeding. To investigate the hemoglobin fragmentation process during the last stages of pregnancy, we examined uterine secretion (lochia) samples from a group of 22 healthy women who underwent cesarean delivery at term. Methods: Patients were divided into three groups: (1) the elective cesarean deliveries without symptoms of spontaneous labor, (2) the nonelective cesarean deliveries with spontaneous beginning of labor, and (3) the nonelective cesarean deliveries during advanced labor. The samples were subjected to chromatographic estimation of free hemoglobin and peptides. In three representative patients the identification of all lochial peptides was performed. Results: All samples contained a significant amount of free hemoglobin and its level increased with labor progression. The presence of peptide fractions was also detected in most lochia samples. They were confirmed to be human hemoglobin fragments, almost identical to the recently described bactericidal hemocidins from menstrual discharge. The level of peptides also increased during labor. The subgroup with advanced labor demonstrated the highest amount of hemocidins. Conclusions: The presented results prove that proteolysis of free hemoglobin in the female upper reproductive tract begins together with the clinical symptoms of normal labor. We speculate that cesarean delivery affects molecular mechanisms involved in antibacterial hemocidins generation and, in effect, might be responsible for the increased risk of gynecologic infections in cesarean deliveries.


Reproductive Biology and Endocrinology | 2015

Age-related trends in anti-Mullerian hormone serum level in women with unilateral and bilateral ovarian endometriomas prior to surgery

Dorota Nieweglowska; Iwona Hajdyla-Banas; Kazimierz Pityński; Tomasz Banas; Oliwia Grabowska; Grzegorz Juszczyk; A. Ludwin; Robert Jach

BackgroundEndometriosis is a well-known cause of infertility, and the anti-Mullerian hormone (AMH) is an accepted biomarker of ovarian reserve and response to artificial reproductive technology procedures. The present study was a prospective analysis of age-dependent AMH serum concentration in women with bilateral and unilateral ovarian endometriomas before therapy onset compared with healthy controls.MethodsThis prospective cross-sectional study included 384 women aged 18–48 years. AMH serum concentration was assessed between days 3 and 6 of the menstrual cycle in 78 patients with bilateral and 157 patients with unilateral ovarian endometriomas and compared with 149 healthy controls. Ovarian endometriosis was confirmed histopathologically, and data were presented as medians with interquartile range (IQR).ResultsStage III endometriosis was diagnosed in 53.2 %, stage IV in 18.3 %, stage V in 23.4 % and stage VI in 5.4 % of the patients. Patients with bilateral ovarian endometriomas showed the lowest median AMH levels compared with patients suffering from unilateral ovarian endometriosis (0.55; IQR: 0.59 vs. 2.00; IQR: 2.80; p < 0.001) and the control group (0.55; IQR: 0.59 vs. 2.84; IQR: 3.2; p < 0.001). Median AMH concentration values were not significantly different between patients with unilateral ovarian endometriosis and the healthy controls (2.00; IQR: 2.80 vs. 2.84; IQR: 3.2; p = 0.182). A strongly negative correlation between AMH levels and age was confirmed in healthy individuals (R = −0.834; p < 0.001) and women with unilateral ovarian endometriomas (R = −0.774; p < 0.001). Patients with bilateral ovarian endometriosis showed a significantly negative but only moderate correlation between AMH levels and age (R = −0.633; p < 0.001), which was significantly lower than in the healthy controls (R = −0.633 vs. R = −0.834; p = 0.006) but not in the patients with unilateral ovarian endometriosis (R = −0.663 vs. R-0.774; p = 0.093). Based on a multivariate regression analysis, only bilateral localization of ovarian endometrial cysts (p = 0.003) and patient age (p < 0.001), but not left/right localization of unilateral cyst or cyst volume, were negatively associated with AMH serum concentration.ConclusionAccording to our data, unilateral ovarian endometriosis had a moderately negative and nonsignificant effect on AMH-based ovarian reserve evaluated prior to surgery, irrespective of age. In contrast, the ovarian reserve was significantly reduced in women with bilateral ovarian endometriomas.

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A. Ludwin

Jagiellonian University

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I. Ludwin

Jagiellonian University

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Lukasz Wicherek

Nicolaus Copernicus University in Toruń

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Robert Jach

Jagiellonian University Medical College

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Anna Knafel

Jagiellonian University

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Pawel Basta

Jagiellonian University

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Jerzy Sikora

Jagiellonian University

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