Michał Pędziwiatr

Prof. Dr. Michał Pędziwiatr

2nd Department of General Surgery, Jagiellonian University Medical College, Jakubowskiego 2 (Building H, 3rd Floor), 30-688 Kraków, Poland
orcid

Research Focus & Metrics

Academic Career Length

18Years (2009-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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9 May 2018 in Medical Oncology
Verified
Journal Article
Open access
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MPMichał Pędziwiatr
Michał Pędziwiatr
JMJudene Mavrikis
Judene Mavrikis
JWJan Witowski
Jan Witowski
AAAlexandros Adamos
Alexandros Adamos
PMPiotr Major
Piotr Major
ABAndrzej Budzyński
Andrzej Budzyński
Enhanced Recovery After Surgery (ERAS) is an evidence-based paradigm shift in perioperative care, proven to lower both recovery time and postoperative complication rates. The role of ERAS in several surgical disciplines was reviewed. In colorectal surgery, ERAS protocol is currently well established as the best care. In gastric surgery, 2014 saw an establishment of ERAS protocol for gastrectomies with resulting meta-analysis showing ERAS effectiveness. ERAS has also been shown to be beneficial in liver surgery with many centers starting implementation. The advantages of ERAS in pancreatic surgery have been strongly established, but there is still a need for large-scale, multicenter randomized trials. Barriers to implementation were analyzed, with recent studies concluding that successful implementation requires a multidisciplinary team, a willingness to change and a clear understanding of the protocol. Additionally, the difficulty in accomplishing necessary compliance to all protocol items calls for new implementation strategies. ERAS success in different patient populations was analyzed, and it was found that in the elderly population, ERAS shortened the length of hospitalization and did not lead to a higher risk of postoperative complications or readmissions. ERAS utilization in the emergency setting is possible and effective; however, certain changes to the protocol may need to be adapted. Therefore, further research is needed. There remains insufficient evidence on whether ERAS actually improves patients’ course in the long term. However, since most centers started to implement ERAS protocol less than 5 years ago, more data are expected.

6 November 2016 in Obesity Surgery
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Journal Article
Open access
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PMPiotr Małczak
Piotr Małczak
MPMagdalena Pisarska-Adamczyk
Magdalena Pisarska-Adamczyk
MPMajor Piotr
Major Piotr
MWMichał Wysocki
Michał Wysocki
ABAndrzej Budzyński
Andrzej Budzyński
MPMichał Pędziwiatr
Michał Pędziwiatr
Enhanced recovery after surgery (ERAS) protocol is well established in many surgical disciplines and leads to a decrease in the length of hospital stay and morbidity. Multimodal protocols have also been introduced to bariatric surgery. This review aims to evaluate the current literature on ERAS in obesity surgery and to conduct a meta-analysis of primary and secondary outcomes. MEDLINE, Embase, Scopus and Cochrane Library were searched for eligible studies. Key journals were hand-searched. We analysed data up to May 2016. Eligible studies had to contain four described ERAS protocol elements. The primary outcome was the length of hospital stay; the secondary outcomes included overall morbidity, specific complications, mortality, readmissions and costs. Random effect meta-analyses were undertaken. The initial search yielded 1151 articles. Thorough evaluation resulted in 11 papers, which were analysed. The meta-analysis of the length of stay presented a significant reduction standard mean difference (Std. MD) = −2.39 (−3.89, −0.89), p = 0.002. The analysis of overall morbidity, specific complications and Clavien-Dindo classification showed no significant variations among the study groups. ERAS protocol in bariatric surgery leads to the reduction of the length of hospital stay while maintaining no or low influence on morbidity.

16 April 2018 in World Journal of Emergency Surgery
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Journal Article
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Massimo SartelliMassimo Sartelli
Massimo Sartelli
GBGian Luca Baiocchi
Gian Luca Baiocchi
Salomone Di SaverioSalomone Di Saverio
Salomone Di Saverio
FFFrancesco Ferrara
Francesco Ferrara
FLFrancesco M. Labricciosa
Francesco M. Labricciosa
Fausto CatenaFausto Catena
Fausto Catena
Acute appendicitis (AA) is the most common surgical disease, and appendectomy is the treatment of choice in the majority of cases. A correct diagnosis is key for decreasing the negative appendectomy rate. The management can become difficult in case of complicated appendicitis. The aim of this study is to describe the worldwide clinical and diagnostic work-up and management of AA in surgical departments. This prospective multicenter observational study was performed in 116 worldwide surgical departments from 44 countries over a 6-month period (April 1, 2016–September 30, 2016). All consecutive patients admitted to surgical departments with a clinical diagnosis of AA were included in the study. A total of 4282 patients were enrolled in the POSAW study, 1928 (45%) women and 2354 (55%) men, with a median age of 29 years. Nine hundred and seven (21.2%) patients underwent an abdominal CT scan, 1856 (43.3%) patients an US, and 285 (6.7%) patients both CT scan and US. A total of 4097 (95.7%) patients underwent surgery; 1809 (42.2%) underwent open appendectomy and 2215 (51.7%) had laparoscopic appendectomy. One hundred eighty-five (4.3%) patients were managed conservatively. Major complications occurred in 199 patients (4.6%). The overall mortality rate was 0.28%. The results of the present study confirm the clinical value of imaging techniques and prognostic scores. Appendectomy remains the most effective treatment of acute appendicitis. Mortality rate is low.

15 October 2021 in Science Advances
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Journal Article
Open access
PMPawel Moskal
Pawel Moskal
KDKamil Dulski
Kamil Dulski
NCNeha Chug
Neha Chug
CCCatalina Curceanu
Catalina Curceanu
ECEryk Czerwiński
Eryk Czerwiński
WWWojciech Wiślicki
Wojciech Wiślicki
Positronium created in a human body during PET scans hallmarks neoplastic tissues.

1 September 2015 in International Journal of Surgery
Verified
Journal Article
Open access
MPMichał Pędziwiatr
Michał Pędziwiatr
MKMikhail Kisialeuski
Mikhail Kisialeuski
MWMateusz Wierdak
Mateusz Wierdak
MSMaciej Stanek
Maciej Stanek
MNMichał Natkaniec
Michał Natkaniec
ABAndrzej Budzyński
Andrzej Budzyński
Enhanced Recovery After Surgery protocol in colorectal surgery allows shortening length of hospital stay and reducing complication rate. Despite the clear guidelines and conclusive evidence their full implementation and putting them into daily practice meets certain difficulties, especially in the early stage. The aim of the study was to analyse the course of implementation of the ERAS protocol into daily practice on the basis of adherence to the protocol. Group included 92 patients (43F/49M) with colorectal cancer submitted to laparoscopic resection during the years 2013-2014. Perioperative care in all of them based on ERAS protocol consisting of 16 items. Its principles and discharge criteria were based on the guidelines of the ERAS Society guidelines. The entire analysed group of patients was divided into 3 subgroups (30 patients) depending on the time from ERAS protocol implementation. We analysed the compliance with the protocol and its influence on length of hospital stay, postoperative complications and readmission rate in different subgroups. The average compliance with the protocol differed significantly between groups and was 65% in group 1, 83.9% in group 2 and 89.6% in group 3. The compliance with subsequent protocol elements was different. The length of stay and complication rate was statistically different in analysed subgroups. The whole group demonstrated an inverse correlation between compliance and length of stay. This analysis leads to the conclusion that the introduction of the ERAS protocol is a gradual process, and its compliance at the level of 80% or more requires at least 30 patients and the period of about 6 months. The initial derogation from the assumed proceedings is inevitable and should not discourage further action. Particular emphasis in the initial stage should be put on continuous training of personnel of all specialties and continuous evaluation of the results.

1 December 2018 in JAMA Internal Medicine
Verified
Journal Article
Closed access
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BKBruno Kovic
Bruno Kovic
XJXuejing Jin
Xuejing Jin
SKSean Alexander Kennedy
Sean Alexander Kennedy
MHMathieu Hylands
Mathieu Hylands
MPMichał Pędziwiatr
Michał Pędziwiatr
FXFeng Xie
Feng Xie
Importance Progression-free survival (PFS) has become a commonly used outcome to assess the efficacy of new cancer drugs. However, it is not clear if delay in progression leads to improved quality of life with or without overall survival benefit. Objective To evaluate the association between PFS and health-related quality of life (HRQoL) in oncology through a systematic review and quantitative analysis of published randomized clinical trials. Eligible trials addressed oral, intravenous, intraperitoneal, or intrapleural chemotherapy or biological treatments, and reported PFS or health-related quality of life. Data Sources For this systematic review and quantitative analysis of randomized clinical trials of patients with cancer, we searched Medline, Embase, and the Cochrane Central Register of Controlled Trials from January 1, 2000, through May 4, 2016. Study Selection Paired reviewers independently screened citations, extracted data, and assessed risk of bias of included studies. Data Extraction and Synthesis We examined the association of difference in median PFS duration (in months) between treatment groups with difference in global, physical, and emotional HRQoL scores between groups (standardized to a range of 0-100, with higher scores representing better HRQoL) using weighted simple regressions. Main Outcome and Measure The association between PFS duration and HRQoL. Results Of 35 960 records screened, 52 articles reporting on 38 randomized clinical trials involving 13 979 patients across 12 cancer types using 6 different HRQoL instruments were included. The mean (SD) difference in median PFS between the intervention and the control arms was 1.91 (3.35) months. The mean (SD) differences in change of HRQoL adjusted to per-month values were −0.39 (3.59) for the global domain, 0.26 (5.56) for the physical domain, and 1.08 (3.49) for the emotional domain. The slope of the association between the difference in median PFS and the difference in change for global HRQoL (n = 30 trials) was 0.12 (95% CI, −0.27 to 0.52); for physical HRQoL (n = 20 trials) it was −0.20 (95% CI, −0.62 to 0.23); and for emotional HRQoL (n = 13 trials) it was 0.78 (95% CI, −0.05 to 1.60). Conclusions and Relevance We failed to find a significant association between PFS and HRQoL in cancer clinical trials. These findings raise questions regarding the assumption that interventions prolonging PFS also improve HRQoL in patients with cancer. Therefore, to ensure that patients are truly obtaining important benefit from cancer therapies, clinical trial investigators should measure HRQoL directly and accurately, ensuring adequate duration and follow-up.