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Dive into the research topics where Urszula Ambroziak is active.

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Featured researches published by Urszula Ambroziak.


Clinical Endocrinology | 2016

The diagnosis of nonclassic congenital adrenal hyperplasia due to 21-hydroxylase deficiency, based on serum basal or post-ACTH stimulation 17-hydroxyprogesterone, can lead to false-positive diagnosis.

Urszula Ambroziak; Anna Kępczyńska-Nyk; Alina Kurylowicz; Ewa Maria Małunowicz; Anna Wojcicka; Piotr Miśkiewicz; Magdalena Macech

As nonclassic congenital adrenal hyperplasia (NCCAH) needs to be taken into account in women with hyperandrogenism, we aimed to assess whether the recommended level of poststimulated 17OHP ≥30 nmol/l confirms NCCAH.


Clinical Endocrinology | 2015

The morning and late‐night salivary cortisol ranges for healthy women may be used in pregnancy

Urszula Ambroziak; Agnieszka Kondracka; Zbigniew Bartoszewicz; Małgorzata Krasnodębska-Kiljańska; Tomasz Bednarczuk

The diagnosis of adrenal dysfunction in pregnancy and in women taking oral contraceptives remains a diagnostic challenge. Salivary cortisol seems to be a useful tool for the diagnosis of Cushings syndrome and adrenal insufficiency. However, the changes in salivary cortisol concentration in healthy pregnancy are not clearly defined.


Journal of Trace Elements in Medicine and Biology | 2017

Severe selenium deficits in pregnant women irrespective of autoimmune thyroid disease in an area with marginal selenium intake

Urszula Ambroziak; Sandra Hybsier; Urszula Shahnazaryan; Małgorzata Krasnodębska-Kiljańska; Eddy Rijntjes; Zbigniew Bartoszewicz; Tomasz Bednarczuk; Lutz Schomburg

OBJECTIVES Selenium (Se) deficiency is related to an increased risk of preterm labor, miscarriage, preeclampsia, gestational diabetes, and other obstetric complications. As the Se status declines during pregnancy, we hypothesized that the decline may be exacerbated in women with autoimmune thyroid disease (AITD). MATERIAL AND METHODS Pregnant women (n=74; 30 [23-38] years) were consecutively recruited from the district of Warsaw, Poland, and divided into healthy subjects (HS, n=45), and women with a diagnosis of AITD (AITD, n=29). Thyroglobulin antibodies (TG-aAb), thyroid peroxidase antibodies (TPO-aAb), TSH, free T3, free T4, total T3, and total T4, as well as urine iodine excretion were determined. Se status was assessed by serum Se and selenoprotein P (SELENOP) concentrations. Thyroid volume was evaluated by ultrasonography. RESULTS Serum Se and SELENOP concentrations were relatively low in both control and AITD women. A Se deficit according to WHO definition (<45μg/l) was observed in 0%, 3.4%, 28.6% and 4.5%, 18.2%, 35.5% of women in the AITD and HS group, respectively, during the 1st, 2nd, and 3rd trimester. From first to third trimester, TPO-aAb and TG-aAb declined in AITD by 71% and 60%, respectively. The decline in TPO- and TG-aAb was unrelated to the Se status. CONCLUSIONS In this area of habitual low Se intake, a high proportion of women developed a severe Se deficit during pregnancy, irrespective of AITD status. This decline must be considered as a preventable risk factor for pregnancy complications of relevance to both the unborn child and the pregnant mother.


Gynecological Endocrinology | 2015

LC-MS/MS improves screening towards 21-hydroxylase deficiency

Urszula Ambroziak; Anna Kępczyńska-Nyk; Alina Kuryłowicz; Aleksandra Wysłouch Cieszyńska; Ewa Maria Małunowicz; Zbigniew Bartoszewicz; Agnieszka Kondracka; Radosław Jaźwiec; Emilia Pawłowska; Magdalena Szcześniak; Michal Dadlez; Tomasz Bednarczuk

Abstract Basal serum 17OHP measurement remains the first screening step for nonclassic congenital adrenal hyperplasia (NCCAH) and the accuracy of the test is of high value. The aim of this study was to compare the accuracy of immunoassays to LC-MS/MS in the assessment of serum 17OHP and androgens concentration in women with hyperandrogenism and controls. 17OHP, total testosterone, androstendione and DHEA-S were measured in 39 women with clinically and/or biochemically evident hyperandrogenism and in 29 age-matched controls without clinical hyperandrogenism. 17OHP and androgens were measured by immunoassays and by LC-MS/MS. In patients group median 17OHP level measured by immunoassays was significantly higher compared to LC-MS/MS (5.49 nmol/l-ELISA NovaTec® and 3.57 nmol/l-ELISA DRG® versus 1.56 nmol/l-LC-MS/MS p < 0.0001) as well as in the control group (2.58 nmol/l-ELISA DRG® versus 1.14 nmol/l-LC-MS/MS p < 0.0001). Additional, unnecessary diagnostic procedures explaining elevated 17OHP level were undertaken in 85% of patients when NovaTec® test was used, in 50% when ELISA DRG® and in none when LC-MS/MS method was applied. Total testosterone, androstendione and DHEA-S concentrations in the patients and the controls assessed by the immunoassays were also significantly higher compared to LC-MS/MS. LC-MS/MS is more reliable diagnostic tool in the measurement of serum 17OHP and androgens concentrations compared to immunoassays in women with hyperandrogenism.


Ginekologia Polska | 2017

Total testosterone to dihydrotestosterone ratio assessed by LC-MS/MS predicts a worse metabolic profile not only in PCOS patients

Urszula Ambroziak; Alina Kuryłowicz; Anna Kępczyńska-Nyk; Zbigniew Bartoszewicz; Agnieszka Kondracka; Radosław Jaźwiec; Emilia Samborowska; Michal Dadlez; Aleksandra Wysłouch-Cieszyńska; Tomasz Bednarczuk

OBJECTIVES Total testosterone/dihydrotestosterone ratio (TT/DHT) was found to determine metabolic risk in polycystic ovary syndrome (PCOS). The aim of this study was to analyze whether (TT/DHT) may be helpful in predicting metabolic risk not only in PCOS patients but also in healthy women. MATERIAL AND METHODS Total testosterone (TT), dihydrotestosterone (DHT), androstendione and dehydroepiandrosterone sulphate (DHEA-S) were measured by LC-MS/MS in 36 women with PCOS and in 29 age-matched controls without clinical hyperandrogenism. In all participants, anthropometric data, lipids, adipose tissue percent (%fat), HOMA-IR were also assessed. RESULTS The studied groups were not different in terms of age, BMI, waist circumference, %fat and HOMA-IR. In the patients group, mean TT and androstendione levels were significantly higher as compared to controls (1.4 nmol/L vs. 1.0 nmol/L, P < 0.001) and (6.6 nmol/L vs. 4.9 nmol/L, P < 0.01), respectively. In the patients group, mean TT/DHT ratio was significantly higher compared to controls (3.6 vs. 2.7, P < 0.01) and correlated with BMI (r = 0.37, P < 0.05), waist circumference (r = 0.44, P < 0.01), %fat (r = 0.30, P < 0.05), as well as with insulin levels (r = 0.38, P < 0.05) and HOMA-IR (r = 0.44, P < 0.05). The association between TT/DHT ratio and unfavorable metabolic parameters was also seen in controls. CONCLUSION Total testosterone/dihydrotestosterone ratio assessed by LC-MS/MS correlates with a worse metabolic profile not only in PCOS patients, but also in healthy women.


Kardiologia Polska | 2013

Hyperthyroidism after iodine-containing contrast agent administration

Marcin Żach; Karolina Kryjan; Urszula Ambroziak; Magdalena Witkowska; Grzegorz Karpinski; Grzegorz Opolski; Tomasz Bednarczuk

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Videosurgery and Other Miniinvasive Techniques | 2018

Lateral laparoscopic adrenalectomy in patients with previous abdominal surgery – single-center experience

Sadegh Toutounchi; Ryszard Pogorzelski; Małgorzata Legocka; Ewa Krajewska; Krzysztof Celejewski; Urszula Ambroziak; Zbigniew Gałązka

Introduction Lateral transabdominal adrenalectomy (LTA) is the most common minimally invasive technique used to treat patients with adrenal tumors. Aim To analyze intra-operative and post-operative complications and reasons for conversion to open surgery in patients who underwent LTA and had previous abdominal surgery. Material and methods Five hundred and nineteen patients underwent LTA in our center between 2005 and 2016. We identified a study group of 150 patients, with previous abdominal surgery. We analyzed the frequency of intra-operative and post-operative complications and the reasons for conversion from laparoscopic to open adrenalectomy. Results The patients’ mean age was 58; they underwent LTA due to hormonally active tumors (n = 79, 53%) and non-functioning adrenal tumors (n = 71, 47%). The size of adrenal lesions ranged from 20 mm to 90 mm. Seventy-eight (52%) adrenal lesions were found in the right adrenal gland, and 72 (48%) lesions in the left adrenal gland. The mean operating time was 130 min. The mean stay in hospital was five days. The intra-operative complications included blood pressure fluctuations (n = 32), abnormal vascular supply of the adrenal glands causing difficulties with dissections (n = 3), and respiratory problems (n = 1). Two (1.3%) patients had post-operative bleeding at the site of removed adrenal glands; 1 patient had an exacerbation of asthma postoperatively. Of the 150 patients analyzed, 3 (2%) required conversion to open adrenalectomy. The conversions were not caused by abdominal adhesions. Conclusions Lateral transabdominal adrenalectomy is feasible and safe in patients with previous abdominal surgery. In our study, conversion from laparoscopic to open adrenalectomy was not caused by abdominal adhesions.


Videosurgery and Other Miniinvasive Techniques | 2018

Adrenal cysts – optimal laparoscopic treatment

Ryszard Pogorzelski; Sadegh Toutounchi; Ewa Krajewska; Urszula Ambroziak; Łukasz Koperski; Tomasz Wołoszko; Krzysztof Celejewski; Małgorzata Szostek; Wawrzyniec Jakuczun; Zbigniew Gałązka

Introduction Adrenal cysts develop in up to about 0.2% of the overall population. They may account for up to 11% of all pathologies of adrenal glands. Aim Is laparoscopic resection of adrenal cysts a method for the treatment of these pathologies? Material and methods In the years 2010–2017, a total of 27 patients underwent surgery due to adrenal cysts; those included 18 (66.7%) women and 9 (33.3%) men aged 29 to 84 years (mean age: 42.7). Cyst diameter ranged from 55 to 130 mm. After exclusion of hormonal hyperactivity, parasitic cysts, or, to the best possible extent, cancer lesions, patients were qualified for adrenal-sparing laparoscopic surgery. Results All patients were subjected to laparoscopic surgery. Cystic wall resection was performed in 15 (55.6%) patients while adrenalectomy was performed in the remaining 12 (44.4%) patients. The decision regarding the extent of the surgery was made intraoperatively. Histopathological assessment revealed pathological adrenal lesions in as few as 3 (11.1%) patients, with the rest of the study population, i.e. 24 (88.9%), presenting with normal adrenal tissue. Conclusions Laparoscopic resection of adrenal cysts appears to be recommendable as a method for the treatment of these pathologies. It is simpler than adrenalectomy and associated with low risk of any pathological lesion remaining within the adrenal gland following careful intraoperative assessment by an experienced surgeon.


Polish archives of internal medicine | 2018

Prognostic factors in adrenocortical carcinoma: data from a large Polish series

Karolina M. Nowak; Radosław Samsel; Andrzej Cichocki; Urszula Ambroziak; Katarzyna Roszkowska-Purska; Agnieszka Łebek-Szatańska; Łukasz Koperski; Maciej Otto; Wojciech Zgliczyński; Lucyna Papierska

Introduction Adrenocortical carcinoma (ACC) is a rare malignancy, associated with poor outcome and few therapeutic options. Despite increasing attention, the knowledge about the clinical course and treatment of these tumors is limited. Objectives Survival rates in ACC are still low and the percentage of relapse is high. Thus, it is crucial to identify the prognostic factors of overall survival (OS) and recurrence‑free survival (RFS). Patients and methods This was a retrospective analysis of 66 patients diagnosed with ACC between 2002 and 2015. Results The median OS was 43.5 months, 78.19 months for stage I + II, 22.95 months for stage III, and 19.54 months for stage IV ACC. Older age, stage IV ACC, margin status R2, and no mitotane treatment were associated with poor OS. Low Ki67 and mitotic indices were related to improved OS in a univariate analysis. The median RFS was 101.1 months. Disease recurrence after potentially curative surgery was reported in 1 patient (25%) with stage I, 12 patients (46%) with stage II, and 9 patients (45%) with stage III ACC. Male sex and no mitotane treatment were associated with a reduced RFS in a multivariate analysis and higher Ki67 and mitotic indices in the univariate analysis. Conclusions Ki67 and mitotic indices should be considered as prognostic factors when planning the adjuvant treatment of ACC. Mitotane treatment may be independently associated with better outcomes regardless of the tumor stage.


Journal of Obstetrics and Gynaecology Research | 2018

Salivary testosterone may not serve as a screening test in the diagnosis of biochemical hyperandrogenism

Urszula Ambroziak; Alina Kuryłowicz; Anna Kępczyńska-Nyk; Agnieszka Kondracka; Sylvia Gajda; Damian Sieńko

The diagnosis of biochemical hyperandrogenism is still challenging because a set of appropriate, recommended diagnostic tests has not been established. In our study, we aimed to answer the question of whether salivary testosterone is a reliable test to establish the diagnosis of biochemical hyperandrogenism as compared to serum total testosterone (TT) measured either by liquid chromatography–tandem mass spectrometry (LC–MS/MS) or immunoassay and to assess which set of biochemical tests would be the most appropriate for the identification of biochemical hyperandrogenism.

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Tomasz Bednarczuk

Medical University of Warsaw

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Sadegh Toutounchi

Medical University of Warsaw

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Piotr Miśkiewicz

Medical University of Warsaw

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Ryszard Pogorzelski

Medical University of Warsaw

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Zbigniew Gałązka

Medical University of Warsaw

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Agnieszka Kondracka

Medical University of Warsaw

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Ewa Krajewska

Medical University of Warsaw

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Krzysztof Celejewski

Medical University of Warsaw

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