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List of works by Piotr Major

"Analysis of readmissions to the emergency department among patients presenting with abdominal pain"

scientific article published on 12 May 2020

20 years' experience with laparoscopic splenectomy. Single center outcomes of a cohort study of 500 cases

scientific article published on 23 February 2018

3D Printing in Liver Surgery: A Systematic Review.

scientific article published on 22 May 2017

A Periampullary Duodenal Diverticula in Patient with Choledocholithiasis - Single Endoscopic Center Experience.

scientific article published in December 2016

Adipose-Derived Mesenchymal Stem Cells Isolated from Patients with Type 2 Diabetes Show Reduced "Stemness" through an Altered Secretome Profile, Impaired Anti-Oxidative Protection, and Mitochondrial Dynamics Deterioration

scientific article published on 30 May 2019

Adrenal incidentalomas: should we operate on small tumors in the era of laparoscopy?

scientific article published on 10 April 2014

Analysis of Laparoscopic Sleeve Gastrectomy Learning Curve and Its Influence on Procedure Safety and Perioperative Complications

scientific article published on 23 December 2017

Are bariatric operations performed by residents safe and efficient?

scientific article

Are we ready for the ERAS protocol in colorectal surgery?

scientific article published on 22 March 2017

Arterial resections in pancreatic cancer - Systematic review and meta-analysis

scientific article published on 30 April 2020

Author Correction: Risk factors for serious morbidity, prolonged length of stay and hospital readmission after laparoscopic appendectomy - results from Pol-LA (Polish Laparoscopic Appendectomy) multicenter large cohort study

scientific article published on 06 December 2019

Bariatric Surgery During COVID-19 Pandemic from Patients' Point of View-The Results of a National Survey

scientific article published on 02 June 2020

Bariatric patients' nutritional status as a risk factor for postoperative complications, prolonged length of hospital stay and hospital readmission: A retrospective cohort study

Bipolar spectrum features in obese individuals

scientific article

Can the Obesity Surgery Mortality Risk Score predict postoperative complications other than mortality?

scientific article published on 06 December 2016

Cecal intubation rates in different eras of endoscopic technological development.

scientific article published on 19 March 2018

Challenges associated with bariatric surgery - a multi-center report

scientific article published on 18 January 2019

Changes in levels of selected incretins and appetite-controlling hormones following surgical treatment for morbid obesity

scientific article

Changes in plasma albumin levels in early detection of infectious complications after laparoscopic colorectal cancer surgery with ERAS protocol

scientific article published on 16 January 2018

Changing patterns in the surgical treatment of perforated duodenal ulcer - single centre experience.

scientific article

Comparison of Short-Term Clinical and Pathological Outcomes after Transanal versus Laparoscopic Total Mesorectal Excision for Low Anterior Rectal Resection Due to Rectal Cancer: A Systematic Review with Meta-Analysis

scientific article published on 19 November 2018

Comparison of circular- and linear-stapled gastrojejunostomy in laparoscopic Roux-en-Y gastric bypass: a multicenter study

scientific article published on 29 March 2017

Comparison of totally laparoscopic and open approach in total gastrectomy with D2 lymphadenectomy - systematic review and meta-analysis

scholarly article by Piotr Małczak et al published 2018 in Cancer Management and Research

Compliance with the ERAS Protocol and 3-Year Survival After Laparoscopic Surgery for Non-metastatic Colorectal Cancer

scientific article published on 01 October 2019

Complicated appendicitis: Risk factors and outcomes of laparoscopic appendectomy - Polish laparoscopic appendectomy results from a multicenter, large-cohort study.

scientific article published in March 2019

Complicated intra-abdominal infections in Europe: a comprehensive review of the CIAO study.

scientific article published on 29 November 2012

Complicated intra-abdominal infections in Europe: preliminary data from the first three months of the CIAO Study

scientific article

Continuous Glucose Monitoring in Bariatric Patients Undergoing Laparoscopic Sleeve Gastrectomy and Laparoscopic Roux-En-Y Gastric Bypass.

scientific article

Correction to: Type 2 Diabetes Mellitus and Preoperative HbA1c Level Have no Consequence on Outcomes after Laparoscopic Sleeve Gastrectomy-a Cohort Study

scientific article published on 01 September 2019

Cost minimization analysis of laparoscopic surgery for colorectal cancer within the enhanced recovery after surgery (ERAS) protocol: a single-centre, case-matched study

scientific article published on 16 March 2016

Cost-effective, personalized, 3D-printed liver model for preoperative planning before laparoscopic liver hemihepatectomy for colorectal cancer metastases

scientific article published on 31 January 2017

Current Knowledge and Perceptions of Bariatric Surgery among Diabetologists and Internists in Poland

scientific article published on 5 April 2022

Current status of enhanced recovery after surgery (ERAS) protocol in gastrointestinal surgery.

scientific article published on 9 May 2018

Cystic adrenal lesions - analysis of indications and results of treatment.

scientific article published in April 2012

Decision-making based on 3D printed models in laparoscopic liver resections with intraoperative ultrasound: a prospective observational study.

scientific article

Defunctioning ileostomy and mechanical bowel preparation may contribute to development of low anterior resection syndrome

article

Defunctioning ileostomy reduces leakage rate in rectal cancer surgery - systematic review and meta-analysis.

scientific article

Differences in Compositions of Oral and Fecal Microbiota between Patients with Obesity and Controls

scientific article published on 30 June 2021

Do we really need routine drainage after laparoscopic adrenalectomy and splenectomy?

scientific article

Do we really need the full compliance with ERAS protocol in laparoscopic colorectal surgery? A prospective cohort study.

scientific article

Does Postoperative Oral and Intestinal Microbiota Correlate with the Weight-Loss Following Bariatric Surgery?-A Cohort Study

scientific article published on 27 November 2020

Does previous abdominal surgery affect the course and outcomes of laparoscopic bariatric surgery?

scientific article published on 26 March 2018

ERAS protocol in laparoscopic surgery for colonic versus rectal carcinoma: are there differences in short-term outcomes?

scientific article published on 6 May 2016

Early implementation of Enhanced Recovery After Surgery (ERAS®) protocol - Compliance improves outcomes: A prospective cohort study

scientific article published on 28 July 2015

Early results of liver resection using laparoscopic technique

scientific article published in January 2016

Effectiveness and Safety of Roux-en-Y Gastric Bypass in Elderly Patients-Systematic Review and Meta-analysis

article

Effects of bariatric surgery on cardiovascular risk factors among morbidly obese patients

scientific article published on February 2017

Elective Laparoscopic Cholecystectomy--Is It Safe In The Hands Of Residents During Training?

scientific article published on September 2015

Endoscopic Insertion Of A Self-Expandable Stent Combined With Laparoscopic Rinsing Of Peritoneal Cavity As A Method For Staple Line Leaks Treatment In Patients Post Laparoscopic Sleeve Gastrectomy

scientific article published on 01 May 2015

Enhanced Recovery After Surgery (ERAS®) protocol in patients undergoing laparoscopic resection for stage IV colorectal cancer

scientific article

Enhanced recovery (ERAS) protocol in patients undergoing laparoscopic total gastrectomy

scientific article

Enhanced recovery after colorectal surgery in elderly patients

scientific article published on 27 January 2015

Enhanced recovery after surgery (ERAS) programs for esophagectomy

scientific article published on 01 April 2019

Enhanced recovery after surgery protocol in oesophageal cancer surgery: Systematic review and meta-analysis

scientific article

Foxp3+ lymphocyte count in Barrett's esophagus tissue is higher than in in amed esophageal tissue

scientific article published in January 2016

From ideas to long-term studies: 3D printing clinical trials review

scientific article published on 22 May 2018

Functional outcomes after resections for low rectal tumors: comparison of Transanal with laparoscopic Total Mesorectal excision

scientific article published on 05 July 2019

Gastric gastrointestinal stromal tumors: clinical features and short- and long-term outcomes of laparoscopic resection

scientific article published on 26 March 2019

Gastrointestinal obstruction in patients previously treated for malignancies.

scientific article

General surgeons' attitudes towards COVID-19: A national survey during the SARS-CoV-2 virus outbreak

scientific article published on 16 July 2020

Global validation of the WSES Sepsis Severity Score for patients with complicated intra-abdominal infections: a prospective multicentre study (WISS Study).

scientific article

Immunonutrition Changes Inflammatory Response in Colorectal Cancer: Results from a Pilot Randomized Clinical Trial

scientific article published on 22 March 2021

Impact of Adherence to the ERAS® Protocol on Short-term Outcomes after Bariatric Surgery

scientific article published on 01 April 2020

Impact of SARS-CoV-2 pandemic on bariatric care in Poland: results of national survey

scientific article published on 03 December 2020

Impact of age on postoperative outcomes in bariatric surgery.

scientific article published on 4 February 2018

Impact of bariatric surgery on non-alcoholic fatty liver disease.

scientific article published in April 2017

Incidence of true short esophagus among patients submitted to laparoscopic Nissen fundoplication.

scientific article published on 27 January 2015

Influence of Preoperative Weight Loss on Outcomes of Bariatric Surgery for Patients Under the Enhanced Recovery After Surgery Protocol

scientific article published on 01 April 2019

Influence of TNF-α promoter variability on stage and grade in individuals with colorectal cancer

scientific article published on 01 January 2018

Integrative genomics reveal a role for MCPIP1 in adipogenesis and adipocyte metabolism

scientific article published on 31 December 2019

Investigating accuracy of 3D printed liver models with computed tomography

scientific article published on 01 January 2019

Is ERAS in laparoscopic surgery for colorectal cancer changing risk factors for delayed recovery?

scientific article published on 12 February 2016

Is ITP really a desirable indication for teaching laparoscopic splenectomy? Cohort study

scientific article published on 09 January 2019

Is It Possible to Maintain High Compliance with the Enhanced Recovery after Surgery (ERAS) Protocol?-A Cohort Study of 400 Consecutive Colorectal Cancer Patients

scientific article published on 04 November 2018

Is the laparoscopic approach for rectal cancer superior to open surgery? A systematic review and meta-analysis on short-term surgical outcomes

scientific article published on 16 May 2018

Laparoscopic Gastrectomy with Enhanced Recovery After Surgery Protocol: Single-Center Experience

scientific article published on 23 March 2017

Laparoscopic Transperitoneal Lateral Adrenalectomy for Large Adrenal Tumors

scientific article published on 11 March 2016

Laparoscopic adrenalectomy - is it safe in hands of residents in training?

scientific article published on 28 October 2019

Laparoscopic adrenalectomy by the lateral transperitoneal approach in patients with a history of previous abdominal surgery

scientific article published on 21 January 2013

Laparoscopic adrenalectomy for pheochromocytoma is more difficult compared to other adrenal tumors

scientific article

Laparoscopic approach to splenic aneurysms

scientific article published on 30 November 2016

Laparoscopic cholecystectomy in the treatment of gallbladder polypoid lesions--15 years of experience.

scientific article published in November 2013

Laparoscopic gastric resections with per oral specimen extraction in treatment of intramural gastric tumors

scientific article published on February 2017

Laparoscopic sleeve gastrectomy for the treatment of diabetes mellitus type 2 patients-single center early experience.

scientific article published on October 2016

Laparoscopic splenectomy for immune thrombocytopenia in patients with a very low platelet count.

scientific article published on 16 May 2018

Laparoscopic surgery of the spleen through single umbilical incision

scientific article published on 29 September 2012

Laparoscopic transperitoneal adrenalectomy in morbidly obese patients is not associated with worse short-term outcomes

scientific article published on 12 October 2016

Laparoscopic transperitoneal lateral adrenalectomy for malignant and potentially malignant adrenal tumours

scientific article published on 28 August 2015

Laparoscopic treatment of large gastrointestinal stromal tumors (> 5 cm)

scientific article published on 15 October 2018

Laparoscopic uncinate process first pancreatoduodenectomy-feasibility study of a modified 'artery first' approach to pancreatic head cancer.

scientific article published on 11 July 2017

Learning curve for laparoscopic Roux-en-Y gastric bypass based on the experience of a newly created bariatric center

scientific article published on 01 May 2020

Letter to the Editor Concerning the Publication: "Meta-Analysis of Enhanced Recovery Protocols in Bariatric Surgery"

scientific article published on 31 May 2018

Lifestyle changes in patients with morbid obesity and type 2 diabetes mellitus during the COVID-19 pandemic

scientific article published on 16 June 2020

Meta-analysis of short- and long-term outcomes after pure laparoscopic versus open liver surgery in hepatocellular carcinoma patients.

scientific article published on 10 September 2018

Metabolic and Bariatric Surgery Chapter of the Association of Polish Surgeons. Bariatric and metabolic surgery care standards

scientific article published on 05 August 2020

Metagenomic Analysis of Duodenal Microbiota Reveals a Potential Biomarker of Dysbiosis in the Course of Obesity and Type 2 Diabetes: A Pilot Study

scientific article published on 29 January 2020

Minimally invasive pancreatic cancer surgery: What is the current evidence?

scientific article

Minimally invasive versus open pancreatoduodenectomy-systematic review and meta-analysis

scientific article

More stapler firings increase the risk of perioperative morbidity after laparoscopic sleeve gastrectomy.

scientific article published on 26 September 2017

One hundred seventy-nine consecutive bariatric operations after introduction of protocol inspired by the principles of enhanced recovery after surgery (ERAS®) in bariatric surgery

scientific article

Outcomes of sleeve gastrectomy in patients older than 60 years: a multicenter matched case-control study

scientific article published on 22 January 2019

Pancreatoduodenectomy for pancreatic head tumors in the elderly - Systematic review and meta-analysis

scientific article published on 17 May 2018

Patients criteria determining difficulty of the laparoscopic lateral transperitoneal adrenalectomy. A retrospective cohort study

scientific article published on 17 May 2017

Perioperative changes in lymphocyte subpopulations in patients undergoing surgery for colorectal cancer

scientific article published on 01 June 2019

Physiological parameters for Prognosis in Abdominal Sepsis (PIPAS) Study: a WSES observational study

scientific article published on 15 July 2019

Post-occlusive reactive hyperemic response of skin microcirculation among extremely obese patients in the short and long term after bariatric surgery

scientific article published on 28 November 2019

Postoperative Care and Functional Recovery After Laparoscopic Sleeve Gastrectomy vs. Laparoscopic Roux-en-Y Gastric Bypass Among Patients Under ERAS Protocol

scientific article

Postoperative Olfaction Alteration Following Laparoscopic Bariatric Surgery

scientific article published on 15 April 2021

Postoperative complications are associated with worse survival after laparoscopic surgery for non-metastatic colorectal cancer - interim analysis of 3-year overall survival

scientific article published on 08 June 2018

Prediction of Technical Difficulties in Laparoscopic Splenectomy and Analysis of Risk Factors for Postoperative Complications in 468 Cases

Primary tumor resection in stage IV unresectable colorectal cancer: what has changed?

scientific article published on 30 October 2017

Prospective Observational Study on acute Appendicitis Worldwide (POSAW).

scientific article published on 16 April 2018

Quality of Life 10 Years After Bariatric Surgery

scientific article published on 13 June 2020

Quality of Life After Bariatric Surgery

scientific article published in September 2015

Quest for the optimal technique of laparoscopic splenectomy - vessels first or hilar transection?

scientific article published on 30 May 2018

Raising concerns about the Sepsis-3 definitions

scientific article published on 25 January 2018

Randomized Clinical Trial To Compare The Effects Of Preoperative Oral Carbohydrate Loading Versus Placebo On Insulin Resistance And Cortisol Level After Laparoscopic Cholecystectomy.

scientific article published in August 2015

Reduction of 24-h blood pressure variability in extreme obese patients 10 days and 6 months after bariatric surgery depending on pre-existing hypertension

scientific article published on 09 November 2018

Reduction of the risk of rhabdomyolysis after bariatric surgery with lower fluid administration in the perioperative period: a cohort study

scientific article published on 13 April 2016

Revisional Gastric Bypass Is Inferior to Primary Gastric Bypass in Terms of Short- and Long-term Outcomes-Systematic Review and Meta-Analysis.

scientific article published in July 2018

Risk Factors for Early and Late Complications after Laparoscopic Sleeve Gastrectomy in One-Year Observation

scientific article published on 15 January 2022

Risk Factors for Prolonged Length of Hospital Stay and Readmissions After Laparoscopic Sleeve Gastrectomy and Laparoscopic Roux-en-Y Gastric Bypass.

scientific article

Risk factors for complications of laparoscopic sleeve gastrectomy and laparoscopic Roux-en-Y gastric bypass.

scientific article published on 9 December 2016

Risk factors for intraabdominal abscess formation after laparoscopic appendectomy - results from the Pol-LA (Polish Laparoscopic Appendectomy) multicenter large cohort study

scientific article published on 24 July 2018

Risk factors for prolonged hospitalization in patients undergoing laparoscopic adrenalectomy.

scientific article published on 7 February 2018

Risk factors for serious morbidity, prolonged length of stay and hospital readmission after laparoscopic appendectomy - results from Pol-LA (Polish Laparoscopic Appendectomy) multicenter large cohort study

scientific article published on 15 October 2019

Risk factors of intraoperative difficulties during Laparoscopic Sleeve Gastrectomy

scientific article published in November 2018

Serum Amyloid A as an Early Marker of Infectious Complications after Laparoscopic Surgery for Colorectal Cancer

scientific article published on 13 July 2018

Short- and long-term results of laparoscopic adrenalectomy for Conn's syndrome

scientific article published on 03 April 2018

Single center outcomes of laparoscopic transperitoneal lateral adrenalectomy--Lessons learned after 500 cases: A retrospective cohort study

scientific article published on 12 June 2015

Surgical Interventions in Patients Hospitalised with COVID-19. A Review of Seven Months of Experience Working in a COVID-19 Dedicated Centre

scientific article published on 21 January 2021

The Global Alliance for Infections in Surgery: defining a model for antimicrobial stewardship-results from an international cross-sectional survey.

scientific article published on August 2017

The Incidence of Prolonged Postoperative Ileus After Laparoscopic Colorectal Surgery—Does ERAS Protocol Bring Anything New?

scientific article published on 11 February 2017

The Safety of Selective Use of Splenic Flexure Mobilization in Sigmoid and Rectal Resections-Systematic Review and Meta-Analysis

scientific article published on 27 October 2018

The Use of the Enhanced Recovery After Surgery (ERAS) Protocol in Patients Undergoing Laparoscopic Surgery for Colorectal Cancer--A Comparative Analysis of Patients Aged above 80 and below 55.

scientific article published in November 2015

The effect of omentectomy added to bariatric surgery on metabolic outcomes: a systematic review and meta-analysis of randomized controlled trials

scientific article published on 12 August 2018

The effect of whole-body cryostimulation on body composition and leukocyte expression of HSPA1A, HSPB1, and CRP in obese men

scientific article published on 11 April 2020

The fragility of statistically significant results from clinical nutrition randomized controlled trials

scientific article published on 06 June 2019

The hundred most frequently cited studies on sleeve gastrectomy

scientific article published on 29 October 2019

The impact of bariatric surgery on urinary incontinence: a systematic review and meta-analysis.

scientific article

The influence of bariatric surgery on serum levels of irisin and nesfatin-1

scientific article published on 02 November 2018

The knowledge of Polish medical students about digital rectal examination

scientific article published on 01 January 2019

The knowledge of Polish primary care physicians about bariatric surgery.

scientific article published on 22 September 2016

The significant impact of age on the clinical outcomes of laparoscopic appendectomy: Results from the Polish Laparoscopic Appendectomy multicenter large cohort study

scientific article published on 01 December 2018

The usefulness of the Mannheim Peritonitis Index score in assessing the condition of patients treated for peritonitis

scientific article

The venous trunk of henle (gastrocolic trunk): A systematic review and meta-analysis of its prevalence, dimensions, and tributary variations

scientific article published on 30 August 2018

Time-extended exposure of gastric epithelial cells to secretome of -activated fibroblasts induces reprogramming of gastric epithelium towards pre-cancerogenic and pro-invasive phenotype

scientific article published in 2022

Transanal total mesorectal excision for low rectal cancer: a case-matched study comparing TaTME versus standard laparoscopic TME

scientific article published on 01 November 2018

Type 2 Diabetes Mellitus and Preoperative HbA1c Level Have no Consequence on Outcomes after Laparoscopic Sleeve Gastrectomy-a Cohort Study.

scientific article

Type 2 Diabetes Remission 5 Years After Laparoscopic Sleeve Gastrectomy: Multicenter Cohort Study

scientific article published on 05 November 2020

Use of inflammatory markers in the early detection of infectious complications after laparoscopic colorectal cancer surgery with the ERAS protocol

scientific article published on 16 May 2018

Utility of Inflammatory Markers in Detection of Perioperative Morbidity After Laparoscopic Sleeve Gastrectomy, Laparoscopic Roux-en-Y Gastric Bypass, and One-Anastomosis Gastric Bypass-Multicenter Study

scientific article published on 28 April 2020

Variations and morphometric features of the vermiform appendix: A systematic review and meta-analysis of 114,080 subjects with clinical implications

scientific article published on 12 October 2019

What Makes Bariatric Operations Difficult-Results of a National Survey

scientific article published on 28 May 2019

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