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Scopus Author ID: 53981892900
ResearcherID: AAC-3761-2019

Countries

Poland

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Employment (2)

Centre of Postgraduate Medical Education: Warsaw, PL

2021-02-01 to present | Head of the department (II Gastroenterology Department)
Employment
Source: Self-asserted source
Anna Pietrzak

Bielanski Hospital: Warsaw, PL

2021-01-04 to present | Head of the department (Gastroenterology Department)
Employment
Source: Self-asserted source
Anna Pietrzak

Works (50 of 77)

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Page 1 of 2

Vitamin C for the common cold and pneumonia

Polish Archives of Internal Medicine
2025 | Journal article
DOI: 10.20452/PAMW.16915
WOSUID: WOS:001438691900018
Contributors: Hemilae, Harri; Chalker, Elizabeth
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Web of Science Researcher Profile Sync

Efficacy of Upadacitinib Induction Treatment in Moderate-to-Severe Ulcerative Colitis Including Intestinal Ultrasound Assessment: A Multicenter, Real-World Observational Study

Journal of Clinical Medicine
2025-03-03 | Journal article
DOI: 10.3390/jcm14051695
Contributors: Magdalena Kaniewska; Konrad Lewandowski; Michał Krogulecki; Aleksandra Filipiuk; Maciej Gonciarz; Anna Pietrzak; Maria Janiak; Krystian Adrych; Agnieszka Klufczynska; Grażyna Piotrowicz et al.
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Crossref
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The influence of supportive therapy with a six-component myophlebotropic preparation on the reduction of symptoms in patients with symptoms of hemorrhoidal disease

Polish Journal of Surgery
2024-06-24 | Journal article
DOI: 10.5604/01.3001.0054.6443
Contributors: Anna Kwiatkowska; Maciej Borejsza-Wysocki; Michał Głyda; Anna Maria Pietrzak; Marek Szczepkowski; Andrzej Organ; Tomasz Banasiewicz
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Crossref

Applicability of sodium butyrate preparations from a surgeon’s and gastroenterologist’s perspective

Polish Journal of Surgery
2024-04-30 | Journal article
DOI: 10.5604/01.3001.0054.4152
Contributors: Anna Pietrzak; Tomasz Banasiewicz
Source: check_circle
Crossref

Barriers in inflammatory bowel disease care in Central and Eastern Europe: a region-specific analysis.

Therapeutic Advances in Gastroenterology
2023 | Journal article
DOI: 10.1177/17562848231174290
Contributors: Michal Prokopic; Georgiana Gilca-Blanariu; Peter Lietava; Anca Trifan; Anna Pietrzak; Agata Ladic; Marko Brinar; Svetlana Turcan; Tamas Molnar; Peter Banovcin et al.
Source: Self-asserted source
Anna Pietrzak

One-year cyclic therapy with rifaximin-α is effective in the treatment of SUDD (Symptomatic Uncomplicated Diverticular Disease) also in patients with a history of complicated diverticulitis

Polish Journal of Surgery
2023-08-31 | Journal article
DOI: 10.5604/01.3001.0053.8079
Contributors: Anna Pietrzak; Grażyna Rydzewska; Katarzyna Neubauer; Tomasz Banasiewicz; Wiesław Tarnowski
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Crossref

Principles for the use of non-steroidal anti-inflammatory drugs with proton pump inhibitors

Polish Journal of Surgery
2023-07-03 | Journal article
DOI: 10.5604/01.3001.0053.7274
Contributors: Anna Pietrzak
Source: check_circle
Crossref

Update on the Role of Rifaximin in Digestive Diseases

Journal of Gastrointestinal and Liver Diseases
2023-04-01 | Journal article
DOI: 10.15403/jgld-4871
Part of ISSN: 1842-1121
Part of ISSN: 1841-8724
Contributors: Dan Lucian Dumitrascu; Igor Bakulin; Annalisa Berzigotti; Marília Cravo; Laura Gombošová; Milan Lukas; Anna Pietrzak; José María Remes-Troche; Manuel Romero-Gómez; Mercedes Amieva Balmori et al.
Source: Self-asserted source
Anna Pietrzak

Czopki z maślanem sodu - możliwości wykorzystania w chorobach odbytu i odbytnicy.

Terapia
2022 | Journal article
URI:

https://terapia.com.pl/pl
Source: Self-asserted source
Anna Pietrzak

Sodium Butyrate Effectiveness in Children and Adolescents with Newly Diagnosed Inflammatory Bowel Diseases—Randomized Placebo-Controlled Multicenter Trial

Nutrients
2022-08-11 | Journal article
DOI: 10.3390/nu14163283
Contributors: Anna Pietrzak; Marcin Banasiuk; Mariusz Szczepanik; Agnieszka Borys-Iwanicka; Tomasz Pytrus; Jarosław Walkowiak; Aleksandra Banaszkiewicz
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Rare causes of anemia in liver diseases

Advances in Clinical and Experimental Medicine
2022-03-11 | Journal article
DOI: 10.17219/acem/145984
Contributors: Jakub Dawidowski; Anna Pietrzak
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Crossref
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Objawy i powikłania gastroenterologiczne u dzieci chorych na COVID-19 oraz jego wpływ na wcześniej zdiagnozowane choroby przewlekłe

Standardy Medyczne - Pediatria
2022-02 | Journal article
Source: Self-asserted source
Anna Pietrzak

Antispasmodics in irritable bowel syndrome - a hoary old chestnut?

[Saudi Journal of Gastroenterology]
2021 | Journal article
DOI: 10.4103/sjg.sjg_177_21
Source: Self-asserted source
Anna Pietrzak
grade
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Prognostic performance of the 'DICA' endoscopic classification and the 'CODA' score in predicting clinical outcomes of diverticular disease: an international, multicentre, prospective cohort study.

Gut
2021 | Journal article
DOI: 10.1136/gutjnl-2021-325574
Source: Self-asserted source
Anna Pietrzak
grade
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Zasada szybkiego reagowania w leczeniu IBS - skuteczne leczenie na podstawie wytycznych polskiego PTG i amerykańskiego ACG. IBS treatment strategy based on the Polish and American guidelines.

Terapia
2021 | Journal article
URI:

https://terapia.com.pl/pl/node/1089
Source: Self-asserted source
Anna Pietrzak

AZATHIOPRINE LINKED WITH IMPAIRED INTESTINAL EPITHELIAL REGENERATION IN CROHN'S DISEASE

Gastroenterology
2020 | Journal article
WOSUID: WOS:000540349505100
Contributors: Borycka-Kiciak, Katarzyna; Pietrzak, Anna; Ferenc, Karolina; Pietrzak, Piotr; Janaszek, Lukasz; Tarnowski, Wieslaw
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Web of Science Researcher Profile Sync

Azathioprine linked with impaired intestinal epithelial regeneration in Crohn's disease.

Materiały zjazdowe, Journal of Crohn's and Colitis
2020 | Book chapter
Source: Self-asserted source
Anna Pietrzak

Azathioprine linked with impaired intestinal epithelial regeneration in Crohn's disease.

Materiały zjazdowe, Gastroenterology
2020 | Book chapter
URI:

https://meetings.ssat.com/abstracts/2020/806.cgi
Source: Self-asserted source
Anna Pietrzak

Choroba uchyłkowa okrężnicy. Diverticular disease.

Chirurgia po Dyplomie/Postgraduate Surgery
2020 | Journal article
URI:

https://podyplomie.pl/chirurgia/34319,choroba-uchylkowa-okreznicy
Source: Self-asserted source
Anna Pietrzak

Choroby przewodu pokarmowego - postępy 2019/2020.

Medycyna Praktyczna
2020 | Journal article
URI:

https://www.mp.pl/ksiegarnia/produkt/4954
Source: Self-asserted source
Anna Pietrzak

Postępowanie w czynnościowych zaburzeniach przełyku. Functional esophageal disorder management.

Terapia
2020 | Journal article
URI:

https://terapia.com.pl/
Source: Self-asserted source
Anna Pietrzak

Wrzodziejące zapalenie jelita grubego - rekomendacje ACG.

Medycyna po Dyplomie
2020 | Journal article
URI:

https://podyplomie.pl/medycyna/34516,wrzodziejace-zapalenie-jelita-grubego-rekomendacje-acg
Source: Self-asserted source
Anna Pietrzak

Healthy Mum – Healthy Baby? Safety of Vedolizumab During Periconceptual Period

Journal of Crohn's and Colitis
2020-10-05 | Journal article
DOI: 10.1093/ecco-jcc/jjaa063
Contributors: Anna Pietrzak; Krzysztof Skoczylas; Andrzej Mróz
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Crossref
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Combined therapy: rifaximin-α and arabinogalactan with lactoferrin combination effectively prevents recurrences of symptomatic uncomplicated diverticular disease.

Polski przeglad chirurgiczny
2020-04 | Journal article
DOI: 10.5604/01.3001.0014.0946
PMID: 32312914
Contributors: Pietrzak AM; Banasiewicz T; Skoczylas K; Dziki A; Szczepkowski M
Source: Self-asserted source
Anna Pietrzak via Europe PubMed Central
grade
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Choroba refluksowa a ciąża. Gastroesophageal reflux disease and pregnancy.

Medycyna po Dyplomie
2019 | Journal article
URI:

https://podyplomie.pl/medycyna/33546,choroba-refluksowa-a-ciaza
Source: Self-asserted source
Anna Pietrzak

Choroby przewodu pokarmowego - postępy 2018/2019.

Medycyna Praktyczna
2019 | Journal article
URI:

https://www.mp.pl/gastrologia/wytyczne/216514,choroby-przewodu-pokarmowego-postepy-2018-2019
Source: Self-asserted source
Anna Pietrzak

Cyclic rifaximin therapy effectively prevents the recurrence of symptoms after exacerbation of symptomatic uncomplicated diverticular disease: A retrospective study

Przeglad Gastroenterologiczny
2019 | Journal article
DOI: 10.5114/pg.2019.83428
EID:

2-s2.0-85063778695
Contributors: Pietrzak, A.M.; Dziki, A.; Banasiewicz, T.; Reguła, J.
Source: Self-asserted source
Anna Pietrzak via Scopus - Elsevier
grade
Preferred source (of 2)‎

Predictive value of the "DICA" endoscopic classification on the outcome of diverticular disease of the colon: an analysis from the international, multicenter, prospective study.

Materiały zjazdowe, United European Gastroenterology Journal
2019 | Book chapter
URI:

https://journals.sagepub.com/doi/pdf/10.1177/2050640619854671
Source: Self-asserted source
Anna Pietrzak

Skuteczność profilaktycznej terapii łączonej (rifaksymina alfa + prebiotyk arabinogalaktan z laktoferyną) na funkcje przewodu pokarmowego u pacjentów z rozpoznaną objawową niepowikłaną chorobą uchyłkową. Efficacy of combined prophylactic therapy (rifaximine alpha + prebiotic arabinogalactan with lactofferin) on gut function in patients with diagnosed symptomatic uncomplicated diverticular disease.

Polski Przegląd Chirurgiczny/Polish Journal of Surgery
2019 | Journal article
DOI: 10.5604/01.3001.0013.4115
Source: Self-asserted source
Anna Pietrzak
grade
Preferred source (of 2)‎

Mesenchymal stem cells for the treatment of complex perianal fistulas in patients with Crohn disease.

Polski przeglad chirurgiczny
2019-06 | Journal article
DOI: 10.5604/01.3001.0013.2390
PMID: 32312921
Contributors: Borycka-Kiciak K; Pietrzak A; Kielar M; Tarnowski W
Source: Self-asserted source
Anna Pietrzak via Europe PubMed Central
grade
Preferred source (of 2)‎

Choroby przewodu pokarmowego - postępy 2017/2018.

Medycyna Praktyczna
2018 | Journal article
URI:

https://www.mp.pl/gastrologia/wytyczne/194409,choroby-przewodu-pokarmowego-postepy-2017-2018
Source: Self-asserted source
Anna Pietrzak

CT IS BETTER THAN SMALL BOWEL ENDOSCOPY AS A DIAGNOSTIC TOOL LEADING TO SURGERY IN PATIENTS WITH SMALL BOWEL TUMORS - RETROSPECTIVE EVALUATION IN TERTIARY REFERRAL CENTRE

Gastroenterology
2018 | Journal article
WOSUID: WOS:000450011105200
Contributors: Pietrzak, Anna; Surowski, Piotr; Dmitruk, Adam; Wieszczy, Paulina; Olesinski, Tomasz
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Web of Science Researcher Profile Sync

EPIDEMIOLOGY OF DIVERTICULAR DISEASE OF THE COLON: A PRELIMINARY ANALYSIS FROM THE INTERNATIONAL "DICA" PROSPECTIVE STUDY

Gastroenterology
2018 | Journal article
WOSUID: WOS:000450011103476
Contributors: Tursi, Antonio; Brandimarte, Giovanni; Di Mario, Francesco; Elisei, Walter; Picchio, Marcello; Annunziata, Maria Laura; Bafutto, Mauro; Baldi, Fabio; Danese, Silvio; Dumitrascu, Dan Lucian et al.
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Web of Science Researcher Profile Sync

Guidelines on the management of irritable bowel syndrome

Przeglad Gastroenterologiczny
2018 | Journal article
DOI: 10.5114/pg.2018.78343
EID:

2-s2.0-85058633309
Contributors: Pietrzak, A.; Skrzydło-Radomańska, B.; Mulak, A.; Lipiński, M.; Małecka-Panas, E.; Reguła, J.; Rydzewska, G.
Source: Self-asserted source
Anna Pietrzak via Scopus - Elsevier
grade
Preferred source (of 2)‎

Long esophageal inlet patch as a rare cause of laryngopharyngeal symptoms

Endoscopy
2018 | Journal article
DOI: 10.1055/s-0043-123823
EID:

2-s2.0-85038385941
Contributors: Januszewicz, Wł.; Pietrzak, A.; Lenarcik, M.; Mróz, A.; Reguła, J.
Source: Self-asserted source
Anna Pietrzak via Scopus - Elsevier
grade
Preferred source (of 2)‎

Ocena wymagających hospitalizacji powikłań po kolonoskopii profilaktycznej - prospektywne badanie kliniczno-kontrolne.

2018 | Book
Source: Self-asserted source
Anna Pietrzak

Successful endoscopic treatment of refractory postoperative duodenocutaneous fistula using fibrin sealant.

Current Trends in Gastroenterology and Hepatology
2018 | Journal article
DOI: 10.32474/CTGH.2018.01.000109
Source: Self-asserted source
Anna Pietrzak

Bezwzględne wskazania do hospitalizacji u pacjentów z wrzodziejącym zapaleniem jelita grubego.

Medycyna po Dyplomie
2017 | Journal article
URI:

https://podyplomie.pl/medycyna/26573,bezwzgledne-wskazania-do-hospitalizacji-u-pacjentow-z-wrzodziejacym-zapaleniem-jelita-grubego
Source: Self-asserted source
Anna Pietrzak

Co nowego w Maastricht V? : Wytyczne leczenia Helicobacter pylori.

Medycyna po Dyplomie
2017 | Journal article
URI:

https://podyplomie.pl/medycyna/24734,co-nowego-w-maastricht-v-wytyczne-leczenia-helicobacter-pylori
Source: Self-asserted source
Anna Pietrzak

Miejsce fidaksomycyny w leczeniu zakażeń Clostridium difficile. Fidaxomicin in the treatment of Clostridium difficile infections.

Forum Zakażeń
2017 | Journal article
DOI: 10.15374/FZ2017019
Source: Self-asserted source
Anna Pietrzak

Standardy w leczeniu uchyłków jelita grubego.

Medycyna po Dyplomie
2017 | Journal article
URI:

https://podyplomie.pl/medycyna/26221,standardy-w-leczeniu-uchylkow-jelita-grubego
Source: Self-asserted source
Anna Pietrzak

The influence of rifaximin on diverticulitis rate and quality of life in patients with diverticulosis.

Polski Przeglad Chirurgiczny/Polish Journal of Surgery
2017 | Journal article
Source: Self-asserted source
Anna Pietrzak

Uchyłki jelita grubego.

Wybrane algorytmy postępowania w chorobach układu trawiennego.
2017 | Book chapter
Source: Self-asserted source
Anna Pietrzak

53-letni mężczyzna z polipowatą zmianą w esicy w wieloletnim przebiegu wrzodziejącego zapalenia jelita grubego.

Medycyna Praktyczna-Chirurgia
2016 | Journal article
Source: Self-asserted source
Anna Pietrzak

Choroba uchyłkowa okrężnicy i zapalenie uchyłków - rozpoznawanie i leczenie.

Medycyna po Dyplomie
2016 | Journal article
Source: Self-asserted source
Anna Pietrzak

Comparison of infliximab the originator and biosimilars in treatment of Crohn's disease: a Polish cohort study

Journal of Crohn's and Colitis
2016 | Journal article
WOSUID: WOS:000374496600634
Contributors: Zagorowicz, E.; Kierkus, J.; Klopocka, M.; Stec-Michalska, K.; Talar-Wojnarowska, R.; Lykowska-Szuber, L.; Detka-Kowalska, I.; Meder, A.; Pietrzak, A.; Maj, D. et al.
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Web of Science Researcher Profile Sync

Comparison of infliximab the originator and biosimilars in treatment of Crohn's disease: a Polish cohort study.

Materiały zjazdowe, Journal of Crohn's and Colitis
2016 | Journal article
Source: Self-asserted source
Anna Pietrzak

Cytomegalovirus infection in ulcerative colitis is related to severe inflammation and a high count of cytomegalovirus-positive cells in biopsy is a risk factor for colectomy

Journal of Crohn's and Colitis
2016 | Journal article
DOI: 10.1093/ECCO-JCC/JJW071
EID:

2-s2.0-85017209291
Contributors: Zagórowicz, E.; Bugajski, M.; Wieszczy, P.; Pietrzak, A.; Magdziak, A.; Mróz, A.
Source: Self-asserted source
Anna Pietrzak via Scopus - Elsevier
grade
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Cytomegalovirus reactivation in ulcerative colitis is related to severe inflammatory activity

Journal of Crohn's and Colitis
2016 | Journal article
WOSUID: WOS:000374496600410
Contributors: Zagorowicz, E.; Bugajski, M.; Mroz, A.; Pietrzak, A.; Magdziak, A.; Wieszczy, P.
Source: check_circle
Web of Science Researcher Profile Sync

Cytomegalovirus reactivation in ulcerative colitis is related to severe inflammatory activity.

Materiały zjazdowe, Book of Abstracts
2016 | Journal article
Source: Self-asserted source
Anna Pietrzak
Items per page:
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Peer review (4 reviews for 4 publications/grants)

Review activity for International journal of molecular sciences. (1)
Review activity for Medicina. (1)
Review activity for Therapeutic advances in gastroenterology (1)
Review activity for United European Gastroenterology journal. (1)
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