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Dive into the research topics where T. Grega is active.

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Featured researches published by T. Grega.


World Journal of Gastroenterology | 2016

How significant is the association between metabolic syndrome and prevalence of colorectal neoplasia

Stepan Suchanek; T. Grega; Ondrej Ngo; Gabriela Vojtechova; Ondrej Majek; Petra Minarikova; Nagyija Brogyuk; Bohus Bunganic; Bohumil Seifert; Ladislav Dušek; Miroslav Zavoral

The incidence and prevalence of metabolic syndrome (MS) and colorectal cancer (CRC) has been rising in developed countries. The association between these two diseases has been widely studied and reported. Less evidence is available about the relationship between MS and CRC precancerous lesions (adenomatous polyps, adenomas). The aim of this paper is to present an overview of our scientific understanding of that topic and its implication in clinical practice. One of the principal goals of current CRC secondary prevention efforts is to detect and remove the precancerous lesions in individuals with an average CRC risk to prevent the development of invasive cancer. MS is not currently considered a high-risk CRC factor and is therefore not included in the guidelines of organized screening programs. However, in light of growing scientific evidence, the approach to patients with MS should be changed. Metabolic risk factors for the development of adenomas and cancers are the same - obesity, impaired glucose tolerance, dyslipidemia, hypertension, cardiovascular diseases and diabetes mellitus type 2. Therefore, the key issue in the near future is the development of a simple scoring system, easy to use in clinical practice, which would identify individuals with high metabolic risk of colorectal neoplasia and would be used for individual CRC secondary prevention strategies. Currently, such scoring systems have been published based on Asian (Asia-Pacific Colorectal Screening Score; APCS) and Polish populations.


Best Practice & Research in Clinical Gastroenterology | 2016

The role of equipment in endoscopic complications

Stepan Suchanek; T. Grega; Miroslav Zavoral

The role of the surrounding equipment in endoscopic complications has not been published widely. However, an adequate understanding of the advantages and disadvantages of such devices might be helpful to avoid unnecessary problems during endoscopy. This is an overview of the basic principles, benefits and possible harms of electrical power units, medical gases and vital sign monitoring equipment. The aim of this review is to summarize current knowledge about the approach to the electrosurgical unit settings; periprocedural precautions, minimizing the risk of interference between endoscopic equipment and other electrical devices; the appropriate selection of instruments regarding the electrosurgical outcome and the role of carbon dioxide, argon plasma coagulation, pulse oximetry and capnography.


Gastrointestinal Endoscopy | 2015

Sa1568 The Efficiency of Colonic Capsule Endoscopy in Detection of Colorectal Polyps and Cancers Compared to Colonoscopy - Final Results of Multicenter, Prospective, Cross-Over Study

Stepan Suchanek; T. Grega; Michal Voška; Ondrej Majek; Ilja Tachecí; Marek Benes; Pavel Drastich; Gabriela Vojtechova; Bohus Bunganic; Jan Martinek; Jan Bures; Julius Spicak; Miroslav Zavoral


Casopís lékar̆ů c̆eských | 2016

Population colorectal cancer screening in the Czech Republic

Miroslav Zavoral; G. Vojtěchová; Ondrej Majek; Ondřej Ngo; T. Grega; Bohumil Seifert; Ladislav Dušek; Štěpán Suchánek


Gastrointestinal Endoscopy | 2018

Su1714 CONVERSION FACTOR FOR PREDICTION ADENOMA DETECTION RATE FROM POLYP DETECTION RATE IN SCREENING AND FOBT+ COLONOSCOPIES

Gabriela Vojtechova; Stepan Suchanek; Ondrej Ngo; Barbora Bučková; T. Grega; Michal Voška; Ondrej Majek; Miroslav Zavoral


Gastroenterologie a hepatologie | 2018

The Comparison of the Efficiency of Colon Capsule Endoscopy and Optical Colonoscopy in Patients with Positive Immunochemical Fecal Occult Blood Test: multicenter, prospective study

Michal Voška; T. Grega; G. Vojtěchová; Ondřej Ngo; Ondřej Májek; Barbora Bučková; Ilja Tachecí; Marek Benes; Jan Bureš; Julius Špičák; M. Zavoral; Štěpán Suchánek


Endoscopy | 2018

CONVERSION FACTOR FOR PREDICTING ADENOMA DETECTION RATE FROM POLYP DETECTION RATE VARY ACCORDING TO COLONOSCOPY INDICATION AND GENDER OF ENDOSCOPED INDIVIDUALS

Gabriela Vojtechova; Štěpán Suchánek; Ondřej Ngo; Barbora Bučková; T. Grega; Michal Voška; Ondrej Majek; Miroslav Zavoral


Gastrointestinal Endoscopy | 2017

Su1689 Risk Factors for Residual Neoplasia After Endoscopic Mucosal Resection of Laterally Spreading Tumors

Nagyija Brogyuk; Michal Voška; T. Grega; Ondrej Ngo; Ondrej Majek; Miroslav Zavoral; Stepan Suchanek


Gastrointestinal Endoscopy | 2017

Sa1729 Comparison of the Effectiveness Between a Solution of Sulfate Salts and Polyethylene Glycol in Bowel Preparation for Screening Colonoscopy and Randomized, Single-Blind Study

Klára Kmochová; T. Grega; Ondrej Ngo; Ondrej Majek; Miroslav Zavoral; Stepan Suchanek


Gastroenterology | 2017

Colorectal Cancer Screening Detects Tumours at Earlier Stages Improving Clinical Outcomes

Jan Král; Mirko Jakovlevič; Jan Knot; Jan Bauman; Monika Vladarova; Zdenka Kralova; Radka Buresova; Vladimir Kojecky; T. Grega; Michal Stepan; Jan Kotyza; Radka Stepanova; Julius Spicak

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Štěpán Suchánek

Charles University in Prague

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Miroslav Zavoral

Charles University in Prague

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Bohumil Seifert

Charles University in Prague

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Michal Voška

Charles University in Prague

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Nagyija Brogyuk

Charles University in Prague

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Stepan Suchanek

Charles University in Prague

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