• RATIONAL OF ERCP AND ITS BENEFIT IN POST CHOLECYSTECTOMY PATIENTS IN ASSUIT. Published in The Egyptian Journal of Gastroenterology, Vol. 6, No. 1, January, 2001; 231-256
• SYSTMIC CYTOKINE RESPONSE TO LAPAROSCOPIC VERSUS OPEN CHOLECYSTECTOMY. A PROSPECTIVE STUDY. Published in the Egyptian Journal of Intensive care, Vol. 6, No. 1, March, 2001; 375-381
• HIGH PERI-ANAL FISTULAE, IS THERE IS A PLACE FOR SETON IN THEIR MANAGEMENT? Published in Assuit Medical Journal, Vol. 25, No. 4, 2001; 45-62
• INTRA-AND POST ER‎CP MORBIDITY AND MORTALITYAFTER 500 CASES IN ASSIUT, Published in Assuit Medical Journal, Vol. 26, No. 1, 2002; 161-182
• COMPARATIVE STUDY OF DIFFERENT PROCEDURES FOR MANAGEMENT AND PREVENTION OF POST ERCP INFECTIVE COMPLICATIONS?. Published in Medical Journal of Cairo University, Vol. 70, No. 1, March (Suppl.), 2002
• COMMON BILE DUCT STONES, ENDOSCOPIC MANAGEMENT EXPERIENCE IN 107 CASES, Published in Assuit Medical Journal, Vol. 26, No. 3, July, 2002; 1-12
• LAPAROSCOPIC MANAGEMENT OF POST APPENDECTOMY RIGHT ILIAC FOSSA PAIN. Published in Assiut Medical Journal, Vol. 27, No. 1, January, 2003; 63-74
• ROLE OF MR CHOLANGIOPANCREATOGRAPHY IN BILIARY OBSTRUCTION – A CLINICO RADIOLOGIC AND OPERATIVE STUDY. Published in Medical Journal of Cairo University, Vol. 71, No. 3, September, 2003;571-578
• ENDOSCOPY AND ITS SURGICAL APPLICATIONS, REVIEW OF LITERATURES.

*- Published as oral PPT presentation by author in the 21^st annual conference of Assuit medical faculty, Assuit, Mars 2003.

• THE USE OF PLASTIC SHIELD TO PROTECT ANASTOMOTIC LINE INTERNALLY IN PRIMARY COLONIC ANASTOMOSIS WITHOUT PREPARATION IN TRAUMATIC COLONIC INJURY IN ASSUIT. Published in Medical Journal of Cairo University, Vol. 72, No. 2, Jun (Suppl.), 2004; 35 – 45
• MANAGEMENT OF THIRTEEN CASES OF PACREATIC PSEUDOCYSTS WITH DIFFERENT MODALITIES. Published in Medical Journal of Cairo University, Vol. 72, No. 2, Jun (Suppl.), 2004; 113 – 127

*- Published as oral PPT presentation by author in the 22^th annual conference of Egyptian society of surgeons (ESS), Cairo, February 2004.

*- Published as poster presentation by the co-author (Mostafa A. Hamad) in the 8^th conference of world endoscopic surgery, New York-USA, Marsh 2003.

• COMMON BILE DUCT CLEARANCE OF STONES BY SURGERY, ENDOSCOPY AND LAPAROSCOPY (COMPARATIVE STUDY). Published in Assiut Medical Journal, Vol. 28, No. 3, September, 2004; 121 – 138
• COMPARATIVE STUDY BETWEEN DIFFERENT SURGICAL TECHNIQUES IN MANAGEMENT OF COMMON BILE DUCT AFTER EXPLORATION AND CHOLEDOCHO-LITHOTOMY. Published in the Egyptian Journal of Surgery , Vol. 25, No. 1, January, 2006; 38 – 45

https://www.researchgate.net/publication/314245659_COMPARATIVE_STUDY_BETWEEN_DIFFERENT_SURGICAL_TECHNIQUES_IN_MANAGEMENT_OF_COMMON_BILE_DUCT_AFTER_EXPLORATION_AND_CHOLEDOCHO-LITHOTOMY

• MULTIDISCIPLINARY APPROACHES FOR MANAGEMENT OF POST – CHOLECYSTECTOMY PROBLEMS, (SURGERY, ENDOSCOPY, AND PERCUTANEOUS APPROACHES). Published in Assiut Medical Journal; Vol. 30, No. 2, May 2006
• DIFFERENT SURGICAL OPTIONS IN TREATMENT OF CANCER CARDIA AND LOWER THIRD ESOPHAGEAL CANCER. Published in Assiut Medical Journal, Vol. 31, No. 2, May, 2007; 89 – 106
• ACUTE LIMB ISCHEMIA: DELAYED PRESENTATION AND OUTCOME. Published in Assiut Medical Journal, Vol. 31, No. 3, September, 2007; 1 – 10
• EFFICACY AND SAFETY OF ENDOXAPARIN COMPAIRED WITH HEPARINE IN PROPHYLAXIX OF POST OPERATIVE DEEP VENOUS THROMPOSIS IN GENERAL SURGERY. Published in Assiut Medical Journal, Vol. 31, No. 3, September, 2007; 11 – 16
• TAILORED LATERAL SPHINCTEROTOMY IN MANAGEMENT OF CHRONIC ANAL FISSURE WITH HYPERTONIC ANAL SPHINCTER. A modified minimal invasive technique and its clinical and manometric outcome. Published in the Egyptian Journal of Surgery , Vol. 27, No. 2, April, 2008; 57 – 64
• A RANDOMIZED COMPARATIVE STUDY BETWEEN NEEDLE ASPIRATIONS VERSUS SURGICAL DRAINAGE IN LIVER ABSCESS. Published in Assiut Medical Journal, Vol. (32), No. (2), May 2008; 155 – 162
• NATURAL ORIFICE TRANSE LUMINAL ENDOSCOPIC SURGERY (NOTES), INCISIONLESS SURGERY. REVIEW OF LITERATURES.

*- Published as oral PPT presentation by author in the 13^th conference of EHPB, Sharm El Sheikh, January 2009.

*- Published as oral PPT presentation by author in The monthly post graduate meeting in Surgery Department seminar meeting, Sohag University Hospital, General Surgery Seminar Ward; September, 2016.

• COMPARATIVE STUDY BETWEEN PANCREATICO – GASTROSTOMY AND PANCREATICO – JEJUNOSTOMY IN WHIPPLE´S RESECTION OPERATION IN ASSUIT. Published in Medical Journal of Cairo University, Vol. 76, No. 2, (Suppl. III), Jun, 2008; 153 – 160

*- Published as oral PPT presentation by author in the 2^nd HPBG conference, port Saied, April 2009.

*- Published as oral PPT presentation by author in the 1^st international Conference of AlHayah Hospital, Sohag Nile Hotel, Sohag 2014.

*- Published as oral PPT presentation by the author in the 1st Sohag annual international conference of surgery, laparoendoscopy, and oncology , Al-Zohoor hotel, Sohag, 18-19 November 2015

• MULTIDISCIPLINARY APPROACHES FOR MANAGEMENT OF POST – CHOLECYSTECTOMY PROBLEMS, (SURGERY, ENDOSCOPY, AND PERCUTANEOUS APPROACHES). Published in Surgical laparoscopy, endoscopy, and percutaneous techniques (SLEPT), Vol. 19, No. 6 , December, 2009; Pages 459 – 469 .

doi: 10.1097/SLE.0b013e3181bc4567

*- Published on line under Surgy Tech.com website (2009), by invitation from the site administration.

*- Published as poster presentation by author in the 13^th conference of EHPB, Hurghada, January 2010.

*- Published as oral PPT presentation by author in the 20^th conference of IASGO, Cairo, October 2010.

• GIANT STRANGULATED NEGLECTED INGUINAL HERNIA; IS ORCHIDECTOMY IS NEEDED? Published in the Egyptian Journal of Surgery, Vol. 28, No. 4, October, 2009; 177 – 181

https://www.researchgate.net/publication/268299531_CASE_REPORT_GIANT_STRANGULATED_NEGLECTED_INGUINAL_HERNIA_IS_ORCHIDECTOMY_STILL_NEEDED

*- Published on line under Surgy Tech.com website, under case records.

• CLIPLESS CHOLECYSTECTOMY USING HARMONIC SCALPEL AS SINGLE WORKING INSTUMENT, DOUBLE TRACARS TECHNIQUE. Published in the Egyptian Journal of Surgery , Vol. 27, No. 2, January, 2010.
• COMPARATIVE STUDY BETWEEN LAPAROSCOPIC AND OPEN DISTAL PANCREATECTOMY FOR DISTAL BENIGN LESIONS. Published in journal of Laparo endoscopic, and advanced surgical techniques. Vol. 20, No. 5, June 2010; 435 – 440 .

DOI: 10.1089 / lap.2009.0412

*- Published as oral PPT presentation by one of the authors (Mohammad Y. Farag) in the 1st Sohag annual international conference of surgery, laparoendoscopy, and oncology , AlZohoor hotel, Sohag, 18-19 November 2015

• CLIPLESS CHOLECYSTECTOMY USING HARMONIC SCALPEL AS SINGLE WORKING INSTUMENT, DOUBLE TRACARS TECHNIQUE. Published in journal of Laparo endoscopic, and advanced surgical techniques. Vol. 20, No. 7, September 2010; 597 – 603.

 DOI: 10.1089/lap.2009.0375

*- Published as oral PPT presentation by author in the 8^th conference of Egyptian group for laparo-endoscopic surgeons, Alsokhna, November 2009.

*- Published as poster presentation by author in the 13^th conference of of Egyptian hepato-pancreato-biliary society (EHPB), Hurghada, January 2010.

• SURGERY VERSUS ENDOSCOPY, A COMPETITIVE OR COMPLEMENTARY TOOL FOR MANAGEMENT OF POST CHOLECYSTECTOMY PROBLEMS. 10 YEARS EXPERIENCE IN A MAJOR REFFERAL CENTER. Published in Assiut Medical Journal, Vol. (35), No. (2), May 2011; 103 – 124.

*- Published as poster presentation in the 8th Pan-Arab Gastroenterology Conference & the 11^th SGA Conference, Saudi Arabia, Jeddah, 8-10 Feb. 2011.

*- Published as poster presentation in the 14^th international congress of Egyptian hepato-pancreato-biliary society (EHPB), Aldiana hotel, Hurghada, March, 2011.

*- Published as oral PPT presentation by author in the 4^th Annual meeting of EGHPBS, Port Said hotel, Port Said, June 2011.

*- Published as oral PPT presentation by author in the 29^th Annual meeting of Egyptian society of surgeons, Porto Marina, October, 2011.

*- Published as oral PPT presentation by author in the 13^th annual conference of tropical medicine and gastyroenterology, Assuit university hospital, Assuit, Mars; 2012

*- Published as oral PPT presentation by author in the scientific surgical Mina pharm company meeting (Meet the expert), Al-Tagdeef club conference hall, Sohag, Sebtember 15^th , 2015.

• COMPLEX POST CHOLECYSTECTOMY BILIARY INJURIES: MANAGEMENT WITH 10 YEARS EXPERIENCE IN MAJOR REFFERAL CENTER. Published in Journal of Laparo endoscopic, and advanced surgical techniques. Vol. 22, No. 6, July 2012; 539 – 549.

DOI: 10.1089/lap.2011.0520

*- Published as oral PPT presentation by author in the 9^th Annual conference of Egyptian group of laparoendoscopic surgeons, Porto Sokhna, Ain El Sokhna, December, 2011.

*- Published as oral PPT presentation by author in the 15^th international congress of the Egyptian hepato-pancreato-biliary society, Steigenberger Hotel, Luxor, Egypt; February 9-12 2012.

*- Published as oral PPT presentation by author in El-Minia scientific meeting of general surgery department, El-Minia; April 2012.

*- Published as oral PPT presentation by author in the 5^th New Euopean Surgical Academy (NESA) international surgical conference, Palma de Mallorca, Spain, September, 2012.

*- Published as oral PPT presentation by author in the Tri-Partite Conference of the Egyptian Society of Tropical Medicine, Parasitic and infectious Diseases, The Egyptian Society of Hepatology, Gastroenterology in Alexandria, and The Egyptian Hepato-Pancreato-Biliary Society, Sharm El-Sheikh, Egypt, October, 2012.

*- Published as oral PPT presentation by author in the 4th APASL STC (Asian Pacific Association for the Study of the Liver – Single Topic Conference ) conference ( liver fibrosis with and without hepatitis B, or C), 11-13 Jun; 2014; intercontinental City Star hotel, Cairo, Egypt

• DOUBLE MESH REPAIR OF VENTERAL HERNIA (SANDWICH TECHNIQUE) WITH ABDOMINOPLASY FOR COMPLEX VENTERAL HERNIAS. A NOVEL TECHNIQUE WITH PROMISING RESULTS. Published in the Egyptian Journal of Surgery, Vol. 31, No. 4, October, 2012; Pag. 161 – 167.

https://www.researchgate.net/publication/314245816_DOUBLE_MESH_REPAIR_SANDWICH_TECHNIQUE_WITH_ABDOMINOPLASTY_FOR_COMPLEX_VENTRAL_HERNIAS_A_NOVEL_TECHNIQUE_WITH_PROMISING_RESULTS

*- Published as oral PPT presentation by the author in the 1st Sohag annual international conference of surgery, laparoendoscopy, and oncology , Al-Zohoor hotel, Sohag, 18-19 November 2015

• STEPWISE MANAGEMENT OF POSTCHOLECYSTECTOMY PROBLEMS BY SURGERY, AND ENDOSCOPY. Published in Assiut Medical Journal, Vol. (37), No. (2), (Suppl.) May 2013; 41 – 52.
• Cholecystectomy and progress in laparo-endoscopic era from fictions to facts. Where we stand?

*- Published as oral PPT presentation by author in the 9th Annual Scientific Conference of Sohag Faculty of Medicine: Applied Scientific Research, A Fact or A Fiction?  Sohag University, Glass Hall: 24-25 April 2014

• Surgery vs. endoscopy. Competitive or complementary tools for management of post cholecystectomy problems. 10 years’ experience in major referral center. Published in the Journal of Gastrointestinal & Digestive System; Vol. 4, Issue (1), Feb. 2014: 167- 178

http://dx. doi.org/10.4172/2161-069X.1000167

*- Published as oral PPT presentation by author in the EGHC , Dubai 2014 ( Emirates Gastroenterology, and Hepatology Conference) in collaboration with the European Society of Gastrointestinal Endoscopy, 3 – 5 April; Dubai, United Arab Emirates; 2014.

*- Published as oral PPT presentation by author in the 4^th Annual Conference of Hepato-Gastroenterology – Faculty of Medicine – Al-Azhar University (Assiut) April 2014, in collaboration with Board of the Al-Azhar Group of Hepatology and Gastroenterology (AGHG), and 12th Egyptian Digestive Diseases Week taking place on April 23-25, 2014 in sonesta Hotel, Hurghada.

*- Published as oral PPT presentation by the author in the 1st Sohag annual international conference of surgery, laparoendoscopy, and oncology , Al-Zohoor hotel, Sohag, 18-19 November 2015

• LAPAROSCOPY UPDATES, WHERE WE STAND?

*- Published as oral PPT presentation by the author in the surgical Mina pharm company meeting (Meet the expert), Al-Tagdeef club conference hall, Sohag, February, 2014.

• SPOTLIGHT ON SURGERY OF ULCERATIVE COLITIS,

*- Published as oral PPT presentation by the author in the Sohag Association for Surgery, Gastroenterology, and Oncology (SASGO)  monthly meeting, Sohag, September, 2014.

• BILIARY TRACT INFECTION  AND LIVER ABSCESSES,

*- Published as oral PPT presentation by the author in the Sohag Association for Surgery, Gastroenterology, and Oncology (SASGO) monthly meeting, Sohag, November, 2014.

• MANAGEMENT OF MALIGNANT OBSTRUCTIVE JAUNDICE; Tertiary center experience

*- Published as oral PPT presentation by author  in the 3^rd medical congress in upper Egypt by the Egyptian society of tropical medicine, infectious and parasitic diseases (ESTIP), Sohag Nile hotel, Sohag, at 26 – 27^th March 2015.

• SAFE LAPAROSCOPY; Expert Opinion from the Modern Era

*- Published as oral PPT presentation by author in the meeting of Mina pharm company ( Meet the expert ), Al-Tagdeef Club conference hall, Sohag, at 5^th Aug. 2015.

• ENDOSCOPY PROGRESS AND UPDATES

*- Published as oral PPT presentation by author as state of art lecture in the opening ceremony of Assuit training workshop for endoscopy, Assuit University Hospitals, Assuit at 7^th Aug. 2015.

• SEPTIC COMPLICATIONS AFTER MAJOR HEPATIC AND PANCREATIC SURGERY

*- Published as oral PPT presentation by author in the meeting of Mina pharm company ( Meet the expert ), Al-Tagdeef Club conference hall, Sohag, at 15^th Aug. 2015.

• Common bile duct clearance of stones by open surgery, laparoscopic surgery, and endoscopic approaches (Comparative study). Published in the Egyptian Journal of Surgery, 36: 76 – 87; 2017 .

DOI: 10.4103/1110-1121.199895

*- Published as oral PPT presentation by the author in the 1st Sohag annual international conference of surgery, laparoendoscopy, and oncology , Al-Zohoor hotel, Sohag, 18-19 November 2015

*- Published as poster presentation by the author in the 18^th international congress of Egyptian Hepato-Pancreato-biliary society, Steigenberger hotel, Luxor, 2-5 March 2016

*- Published as poster presentation by the author in the 1st World Congress of GI endoscopy ENDO 2017 (Poster presentation: A-737-0024-00636), Hyderabad, India at February 16-19; 2017

*- Published as oral PPT presentation by the author in the 15th international congress& workshop of the Egyptian society of laparoscopic surgery, the 13th winter meeting of Mediterranean & Middle eastern endoscopic surgery association, and  the 6th congress of the Egyptian society  of metabolic & Bariatric surgery , February 14th  – 16th  , 2018 Pyramiza Hotel , Cairo-Egypt

• Pancreatic Pseudocysts Dilemma; Cumulative Multicenter experience in Management using Endoscopy, Laparoscopy, and open surgery. Published in Journal of Laparoendoscopic & Advanced Surgical Techniques. Vol. 27, Numb. 10, Pag. 1022 – 1030; 2017. Mary Ann Liebert inc.

 Doi: 10.1089/lap. 2017.0006

*- Published as oral PPT presentation by the author in the 1^st Sohag annual international conference of surgery, laparoendoscopy, and oncology , Al-Zohoor hotel, Sohag, 18-19 November 2015

*- Published as oral PPT presentation by the author in the 18^th international congress of Egyptian Hepato-Pancreato-biliary society, Steigenberger hotel, Luxor, 2-5 March 2016

*- Published as oral PPT presentation by the author in the 1^st Annual scientific conference of the department of tropical medicine and gastroenterology, Qina University Hospitals, South Valley University, 10 -13 August, Desert Rose resort, Hurghada, Egypt; 2016.

*- Published as poster presentation by the author in the 1st World Congress of GI endoscopy ENDO 2017 (Poster presentation: A-737-0007-00642), Hyderabad, India at February 16-19; 2017

*- Published as oral PPT presentation by the co-author (Dr: Mohammad A. Omar) in the 4^th Qena annual international conference of surgery, laparo-endoscopy, and oncology. The 4^th – 6^th of April, 2018. Golden paradise Hotel; Hurghada, Egypt.

• Endoscopy can substitute surgery for management of post cholecystectomy problems. 15 years’ experience in major referral center.

*- Published as oral PPT presentation by the author in the 1st Sohag annual international conference of surgery, laparoendoscopy, and oncology , AlZohoor hotel, Sohag, 18-19 November 2015

• Single Incision Laparoscopic Surgery (SILS), versus two ports lap surgery in cholecystectomy operation. Published in Surgery journal; Marsh, 2017; 162 : 96 – 103.

Published by Elsevier Inc. 

http://dx.doi.org/10.1016/j.surg.2017.01.006

*- Published as oral PPT presentation by the author in the 1st Sohag annual international conference of surgery, laparoendoscopy, and oncology , Al-Zohoor hotel, Sohag, 18-19 November 2015

*- Published as oral PPT presentation by the co-author (Dr: Mohammad A. Omar) in the 4^th Qena annual international conference of surgery, laparo-endoscopy, and oncology. The 4^th – 6^th of April, 2018. Golden paradise Hotel; Hurghada, Egypt.

*- Published as oral PPT presentation by the co-author (Dr: Mohammad A. Omar) in the scientific meeting of Minia department of surgery in collaboration with the Egyptian society of surgeons (Basic surgical skills). April 25^th – 26^th, 2018 Grand Aton Hotel; Minia, Egypt

• Laparoscopic common bile duct exploration (LCBDE), Feasibility, and prospective to substitute combined ERCP/lap. Chole. in management of common bile duct stones

*- Published as poster presentation by the author in the 1st Sohag annual international conference of surgery, laparoendoscopy, and oncology , Al-Zohoor hotel, Sohag, 18-19 November 2015

*- Published as oral PPT presentation by the author in the 1^st Assiut general surgery department annual conference and workshop (the family gather again), the main conference hall, administrative university center, Assiut; 24 – 25 May, 2016

*- Published as oral PPT presentation by the author in The 14th international congress &workshop of Egyptian society of laparoscopic surgery, the 12th Winter meeting of Mediterranean & Middle Eastern endoscopic surgery association, and the 5th Congress of Egyptian society of metabolic & Bariatric surgery: 16 – 18 February; 2017. Semiramis intercontinental hotel; Cairo, Egypt

*- Published as oral PPT presentation by the author in the 35^th Annual Meeting of the Egyptian Society of Surgeons in collaboration with the pan Arab association of surgeons, Fairmont Heliopolis; Cairo, Egypt.  March 22^nd -24^th , 2017.

*- Published as oral PPT presentation by the author in the scientific meeting of Minia department of surgery in collaboration with the Egyptian society of surgeons (Basic surgical skills). April 25^th – 26^th, 2018 Grand Aton Hotel; Minia, Egypt

• Hepatocellular carcinoma (HCC) from diagnosis to treatment; 15 years of challenges and modification of resection strategies. Published in the Egyptian Journal of Surgery December 11. 2016; 35: 421 – 432. IP: 156.203.211.44.

DOI: 10.4103/1110-1121.194745    

*- Published as poster presentation by the author in the 1^st Sohag annual international conference of surgery, laparoendoscopy, and oncology , AlZohoor hotel, Sohag, 18-19 November 2015

*- Published as poster presentation by the author in the Doha 2016 Hepatocellular Carcinoma Conference 4 – 5 March, the Sheraton hotel, Doha, Qatar; 2016

*- Published as poster presentation by the author in the 18^th international congress of Egyptian Hepato-Pancreato-biliary society, Steigenberger hotel, Luxor, 2-5 March 2016

*- Published as oral PPT presentation by the author in the 17^th congress of the modern Egyptian surgical society (MESS), and the 4^th congress of the association of pan arab surgical obesity society (PASOS); Movenpick hotel, Hurghada, 23 – 26  March 2016

*- Published as oral PPT presentation by the author in the 1^st annual congress of surgery department, faculty of medicine, Minia University,  the main administrative conference hall, Minia; 2 – 3 June, 2016.

*- Published as oral PPT presentation by the author in the 17^th international annual scientific conference of department of tropical medicine and gastroenterology in collaboration with the Egyptian association of viral hepatitis, 30^th October – 1^st November: Assuit University, 2^nd -5^th November:  Sentido palm royal resort, Hurghada, 2016.

*- Published as oral PPT presentation by the author in the 4^th Qena annual international conference of surgery, laparo-endoscopy, and oncology. The 4^th – 6^th of April, 2018. Golden paradise Hotel; Hurghada, Egypt.

• Dose needle-knife precut sphincterotomy and repeated cannulation correlate with post-ERCP pancreatitis in patients with bile duct stone disease? Published in the Egyptian Journal of Surgery, February, 2016; 35: 24 – 28. IP: 41.43.212.165.

 DOI: 10.4103/1110-1121.176794

*- Published as poster presentation by one of the authors (M. Omar M.D) in the 1^st Sohag annual international conference of surgery, laparoendoscopy, and oncology , Al-Zohoor hotel, Sohag, 18-19 November 2015

*- Published as poster presentation by one of the authors (Mohamad Omar M.D) in the 18^th international congress of Egyptian Hepato-Pancreato-biliary society, Steigenberger hotel, Luxor, 2-5 March 2016.

• Management of post operative bile leak; Tertiary center experience. Published in the Clin Surg. 2017; 2: 1743

Remedy Publications LLC., | http://clinicsinsurgery.com/

*- Published as poster presentation by one of the authors (M. Omar M.D) in the 2016 SAGES Scientific Session & Postgraduate Course March 16-19, 2016 in Boston, Massachusetts, USA.

• Diagnostic colonoscopy; Tips and Tricks from expert

*- Published as oral PPT presentation by author as state of art lecture in the opening ceremony of Assuit training workshop for endoscopy, Assuit University Hospitals, Assuit at 30^th October in the 17th international annual scientific conference of department of tropical medicine and gastroenterology in collaboration with the Egyptian association of viral hepatitis, 30th October – 1st November: Assuit University, 2nd -5th November:  Sentido palm royal resort, Hurghada, 2016.

• Diagnostic Imaging and Different Modalities of Treatment of Temporomandibular Joint Dysfunction

Published in Sohag Medical Journal, October, 2017; Vol. 21 (3): 77 – 86.

• Desarda versus Lichtenstein Technique for Primary Inguinal Hernia: A randomized Multicenter controlled trial with encouraging results. Published in the International Surgery Journal, 2018 Aug;5(8):2723-2726.

DOI: http://dx.doi.org/10.18203/2349-2902.isj20183191

*- Published as oral PPT presentation by one of the authors (Waiel Barakaat M.D) in the 38^th international congress of the European hernia society, June 5 – 8 Postilion convection center WTC, Rotterdam, The Netherland; 2016.

*- Published as poster presentation by one of the authors (Waiel Barakaat M.D) in the 1st Sohag annual international conference of surgery, laparoendoscopy, and oncology , Al-Zohoor hotel, Sohag, 18-19 November 2015

• Peptic ulcer diseases; Spotlight and debates

*- Published as oral PPT presentation by the author as stat of art lecture of the meeting at the 5th annual Luxor fever hospital meeting, in collaboration with internal medicine department at Luxor general hospital, 17 March, Ebrotel hotel; Luxor, 2016.

• Progress of Endoscopy, and Updates; Tertiary Center Experience.

*- Published as oral PPT presentation by the author as stat of art lecture of the 1^st international workshop of GIT endoscopy, Endoscopy unit, department of tropical medicine and gastroenterology, Qina University Hospitals, South Valley University, 9th August; 2016.

• Enveloped double purse-string versus conventional pancreatico-gastrostomy during Whipple procedure: comparative study at Sohag university onco-surgery program. Published in the International Surgery Journal; January 2017, Vol. 4, Issue 1, Pag. 1-6.

DOI: http://dx.doi.org/10.18203/2349-2902.isj20164052

1)Published in the Hepato Pancreato Biliary Journal (Abstract only); January 01, 2019, Vol. 21, Supplement 3, S693.

Open Archive * DOI: http://doi.org/10.1016/j.hpb.2019.10.545

*- Published as oral PPT presentation by one of the authors (Ashraf M. El-badry) in the   34^th annual summer meeting of the Egyptian society of surgeons , October 27-29, 2016, Helnan Palestine, Alexandria, Egypt.

*- Published as oral PPT presentation by the author in the 4^th Qena annual international conference of surgery, laparo-endoscopy, and oncology. The 4^th – 6^th of April, 2018. Golden paradise Hotel; Hurghada, Egypt.

• The challenging dilemma of post cholecystectomy problems; Time to be settled. Tactics of management with 15 years’ experience in a major referral centers. Published in JSM Gastroenterology and Hepatology; January 2017. 5(1): 1076.

*- Published as oral PPT presentation by the author in the 2^nd international conference of the department of tropical medicine and gastroenterology, Qina University Hospitals, South Vally University, May; 2017.

• LAPAROSCOPIC VERSUS OPEN RESTORATION OF THE GUT CONTINUITY AFTER HARTMANN‘S PROCEDURE. Published in the International Surgery Journal, 2018 Aug; 5 (8): 2708 – 2711 .

DOI: http://dx.doi.org/10.18203/2349-2902.isj20183189

*- Published as Poster presentation by one of the authors (Waiel Barakaat M.D) in the 25^th International Congress of the European association of endoscopic surgery and other interventional techniques (EAES), Frankfurt, Germany. 14-17 June 2017 (Abstract number: 67).

*- Published as oral PPT presentation by one of the authors (Waiel Barakaat M.D) in the 27^th  World Congress of the International Association of Surgeons, Gastroenterologists and Oncologists (IASGO World Congress 2017) Lyon, France. November 15^th  – 17^th ;2017.

• Progress of Endoscopy; Long journey approaching perfection

*- Published as oral PPT presentation by the author as stat of art lecture of the 1st international workshop of GIT endoscopy, Endoscopy unit, department of tropical medicine and gastroenterology, Qina University Hospitals, South Valley University, 9th August; 2016.

• Evaluation and management of polyposis syndrome

*- Published as oral PPT presentation by the author as a review of literatures at the 19^th Annual conference of the Egyptian group of colon and rectal surgeons in collaboration with the Egyptian society of surgeons, September 13^th   – 15^th , 2017 JW Marriott Hotel, Cairo.

• Cholecystectomy and its complications from A to Z; Master overview.

*- Published as oral PPT presentation by the author as a review of literatures at the monthly post graduate meeting in Surgery Department seminar meeting in 4 cosequetive meeting, Sohag University Hospital, General Surgery Seminar Ward; September, 2016.

• Review on Liver Steatosis and its Impact on Liver Transplantation. Published by one of the co-authors (Dr: Emad Ali Ahmad) in the Journal of Liver Research, Disorders & Therapy, september 2017; 3(4): 00064

 DOI: 10.15406/jlrdt.2017.03.00064

• Surveillance of Surgical Site Infection in General Surgery Department at Sohag University Hospital. Published in Egyptian Journal of Medical Microbiology Volume 27 / No.1 / January 2018 159-166 Online ISSN: 2537-0979
• Alternative laparoscopic techniques for stone extraction during laparoscopic CBD exploration (LCBDE); Pros and cons. Published in the International Surgery Journal, 2019 July ; 6 (7): 2395 – 2400.

DOI: http://dx.doi.org/10.18203/2349-2902.isj20192962

*- Published as oral PPT presentation by the author in the 15th international congress& workshop of the Egyptian society of laparoscopic surgery, the 13th winter meeting of Mediterranean & Middle eastern endoscopic surgery association, and  the 6th congress of the Egyptian society  of metabolic & Bariatric surgery , February 14^th  – 16^th  , 2018 Pyramiza Hotel , Cairo-Egypt

*- Published as oral PPT presentation by the author in the 36th Annual meeting of the Egyptian society of surgeons. March 21^th  – 23^th  , 2018 Hilton Cairo Heliopolis.

*- Published as oral PPT presentation by the author in the 4^th Qena annual international conference of surgery, laparo-endoscopy, and oncology. The 4^th – 6^th of April, 2018. Golden paradise Hotel; Hurghada, Egypt.

*- Published as oral PPT presentation by the author in the 7^th international meeting of hepato-pancreatico-biliary and liver transplant surgery, in collaboration with anesthesia and intensive care department, National liver institute, Minoufia University. September 12 – 13 – 2019 – Novotel Airport  Hotel, Cairo, Egypt

• Oncoplastic Breast Surgery: Current Strategies and Outcome

Published in Sohag Medical Journal, January, 2018; Vol. 22 (1): 1110-7529.

• Remnant Gall Bladder and Cystic Duct Stump Stone After Cholecystectomy; Tertiary Multicenter Experience. Published in the International Surgery Journal, 2018 November; 5 (11) : 3478 – 3483

DOI: 10.18203/2349-2902.isj20184612

*- Published as oral PPT presentation by the co-author (Dr: Sameer A. Makady) in the 4^th Qena annual international conference of surgery, laparo-endoscopy, and oncology. The 4^th – 6^th of April, 2018. Golden paradise Hotel; Hurghada, Egypt.

*- Published as oral PPT presentation by the co-author (Dr: Sameer A. Makady) in the scientific meeting of Minia department of surgery in collaboration with the Egyptian society of surgeons (Basic surgical skills). April 25^th – 26^th , 2018 Grand Aton Hotel; Minia, Egypt

*- Published as oral PPT presentation by the author in the 6^th international congress of hepato-pancreatico-biliary and liver transplant surgery, in collaboration with anesthesia and intensive care department, National liver institute, Minoufia University. May 1^st  – 2^nd  2018 – Grand Nile tower Hotel, Cairo, Egypt.

*- Published as oral PPT presentation by the author in the 36^th Annual Summer Meeting of the Egyptian Society of Surgeons. September 27^th – 28^th , 2018 Helnan Palestine Hotel; Alexandria, Egypt.

*- Published as oral PPT presentation by the author in the 16th international congress& workshop of the Egyptian society of laparoscopic surgery, the 14th winter meeting of Mediterranean & Middle eastern endoscopic surgery association, and  the 7th congress of the Egyptian society  of metabolic & Bariatryc surgery , February 14th  – 16th  , 2019 Hilton Heliopolis Hotel , Cairo-Egypt

• Predictors of outcome in patients with traumatic liver injury in Sohag Governorates

*- Published as oral PPT presentation by the Co-author (Dr: Ahmad M. Helmy) in the 4^th Qena annual international conference of surgery, laparo-endoscopy, and oncology. The 4^th – 6^th of April, 2018. Golden paradise Hotel; Hurghada, Egypt.

• Spot light on some interesting ERCP cases; 20 Years experience

*- Published as oral PPT presentation by the author as stat of art lecture in the 6th annual conference of gastro-enterology and hepatology unit, internal medicine department, Faculty of medicine, Sohag University. May 10^th; 2018. Sohag University, Egypt

• Impact of Graft Steatosis on Postoperative Complications after Liver Transplantation

Published in the Surgery Journal, August. 2018; Vol. No. 4 : e 188 – e196.

DOI https://doi.org/10.1055/s-0038-1675236. ISSN 2378-5128.

• Anal complications after anal fistula surgery

*- Published as oral PPT presentation by the author as a review of literatures at the 20^th Annual conference of the Egyptian group of colon and rectal surgeons in collaboration with the Egyptian society of surgeons, July 25^th – 27^th, 2018 Hilton Cairo Heliopolis Hotel, Cairo.

• Bariatric surgery between encouragement and inhibition; Sohag experience of first 50 cases with encouraging results (A single center case series study)

Published in the International Surgery Journal, 2019 . July; 6 (7): 2234 – 2238

DOI: http://dx.doi.org/10.18203/2349-2902.isj20192940

*- Published as oral PPT presentation by the co-author (Dr. Ahmad Rafat Saad) in the 36^th  Annual Summer Meeting of the Egyptian Society of Surgeons. September 27^th – 28^th  , 2018 Helnan Palestine Hotel; Alexandria, Egypt.

• Single-stage laparoscopic management for concomitant gallstones and common bile duct stones versus two stages using ERCP procedure.

*- Published as oral PPT presentation by the Co-author (Dr: Mohammad Tag-Eldeen) in the 16th international congress& workshop of the Egyptian society of laparoscopic surgery, the 14th winter meeting of Mediterranean & Middle eastern endoscopic surgery association, and  the 7th congress of the Egyptian society  of metabolic & Bariatryc surgery , February 14th  – 16th  , 2019 Hilton Heliopolis Hotel , Cairo-Egypt

• Acute mild gallstone pancreatitis – timing of cholecystectomy.

Published in the International Surgery Journal, 2019 . Apr; 6 (4): 1051 – 1055.

DOI: http://dx.doi.org/10.18203/2349-2902.isj20191250

• Total thyroidectomy: conventional suture ligation technique versus sutureless techniques

Published in the International Surgery Journal, 2019 . Jun; 6 (6): 1862 – 1869

DOI: http://dx.doi.org/10.18203/2349-2902.isj20192355

• Follow up after diverticulitis: When colonoscopy is appropriate?

*- Published as oral PPT presentation by the author in the 21th Annual conference of the Egyptian society of colon and rectal surgeons. 28th – 30th August 2019 Hilton Cairo Heliopolis Hotel, Cairo

• Management of post cholecystectomy biliary injuries; Yield of 20 years’ experience in major referral center.

*- Published as oral PPT presentation by the author in the 3^rd Upper Egypt general surgery conference (Towards perfect surgery); 26 – 29 August 2019, MovenPick Soma Bay resort; Hurghada, Egypt.

*- Published as oral PPT presentation by the author in the 1st symposium of faculty of medicine-Merit University (New era in applied medical researches), that was held as on-line event at the 7th June, 2021 from 10:00 AM – 4:00 PM, Merit University, New Sohag, Egypt.

*- Accepted as poster presentation by the author in the ENDO 2020 (connecting the world of endoscopy), 2^nd world congress of GI Endoscopy, and 24^th Pan American congress of digestive endoscopy (A-0989-0075-00367) March 7-10, 2020 Windsor Convection and Expo Center, Rio De Janeiro, Brazil.

• Impact of choledochotomy techniques during laparoscopic CBD exploration on short and long term outcomes: Time to change concepts (a retrospective cohort study)

Published in the International Journal of Surgery 83 (2020) 102–106

DOI: https://doi.org/10.1016/j.ijsu.2020.08.043

*- Published as oral PPT presentation by the author in the 37^th Annual summer meeting of the Egyptian society of surgeons in collaboration with the international society of surgeons. September 26^th  – 28^th , 2019 Helnan Palestine Hotel; Alexandria.

*- Published as oral PPT presentation by the author in The 17^th international congress &workshop of Egyptian society of laparoscopic surgery, the 15^th Winter meeting of Mediterranean & Middle Eastern endoscopic surgery association, and the 8^th Congress of Egyptian society of metabolic & Bariatric surgery: 20 – 22 February; 2020. Semiramis intercontinental hotel; Cairo, Egypt.

*- Published as oral presentation by the co-author (Dr. Emad Ali Ahmad) in The 18^th international congress& workshop of the Egyptian society of laparoscopic surgery (ESLS 2022), the 16th winter meeting of Mediterranean & Middle eastern endoscopic surgery association, and the 9^th congress of the Egyptian society of metabolic & Bariatric surgery, February 17^th  – 19^th  , 2022 Semiramis intercontinental Hotel , Cairo-Egypt

*- Published as oral presentation by the co-author (Dr. Emad Ali Ahmad) in the 40^th Annual meeting of Egyptian society of surgeons organized by the Egyptian Society of Surgeons (ESS), in collaboration with International Society of Surgeons (ISC/SIC), International federation of surgical colleges (IFSC), and Turkish surgical society That was held at 30th March – 1st April  2022; Intercontinental Cairo Semiramis Hotel, Cairo, Egypt.

*- Published as oral presentation by the author in the conference of general surgery department of Minia University (SURGI MINIA 2022) in collaboration with the Egyptian society of surgeons (ESS), and Minia medical syndicate, 30^th November – 1^st December 2022; Jewel ElMinia Hotel (Armed Forces Hotel) , Al Minia, Egypt.

• Prospective trial comparing open approach of Lichtenstein tension-free mesh with laparoscopic transabdominal preperitoneal approach for repair of inguinal hernia: tertiary center experience.

Published in the International Surgery Journal, 2019 . November; 6 (11): 3927 – 3931.

DOI: http://dx.doi.org/10.18203/2349-2902.isj20195097

• Two-stages using endoscopic retrograde cholangio-pancreatography procedures versus single stage laparoscopic management for concomitant gallstones and common bile duct stones.

Published in the International Surgery Journal, 2019 . December; 6 (12): 4244 –  4247.

DOI: http://dx.doi.org/10.18203/2349-2902.isj20195381

• Sohag University general surgery center 5-years’ experience in colonic continuity restoration after Hartmann’s procedure: A retrospective comparative study between open versus laparoscopic surgery.

*- Published as oral PPT presentation by the Co-author (Dr: Mostafa Farrage) in the 3^rd Annual meeting of IASGO organized by Egyptian chapter of IASG, November 14^th – 15^th ; 2019 at Semiramis intercontinental Hotel , Cairo-Egypt.

*- Published as oral PPT presentation by the Co-author (Dr: Ahmad Helmy) in the 21^th Annual conference of the ESCRS (Egyptian society of colon and rectal surgeons), 28^th – 30^th August 2019 Hilton Cairo Heliopolis Hotel, Cairo – Egypt.

• Common Surgical Problems of Hepato-Biliary Pancreatic System, and their Management; Experience opinion in center of excellence.

*- Published as oral PPT presentation by the author in the annual conference of the new doctors in medical fields arranged by Sohag medical syndicate with collaboration with the ministry of health Sohag governorate; 20^th February 2020 at Sohag medical club.

• Endoscopic Ampullectomy For Highly Dysplastic Adenoma, or Suspicious Ampullary Neoplasms: Pros and Cons with Tertiary Center Experience

*- Accepted as poster presentation by the author in the ENDO 2020 (connecting the world of endoscopy), 2^nd world congress of GI Endoscopy, and 24^th Pan American congress of digestive endoscopy (A-0989-0073-00368) March 7-10, 2020 Windsor Convection and Expo Center, Rio De Janeiro, Brazil.

• Surgical Site Infection; Spotlight, and Changing Plans

*- Published as oral presentation by the author in the standalone meeting of Al-America pharmaceutical company – Ultramox launching campaign that was held in Hurghada, Desert Rose Resort, at 10^th – 12^th December 2020.

• Laparoscopic inguinal hernia repair; Sohag experience

Published in The Egyptian Journal of Hospital Medicine (October 2021) Vol. 85, Page 2678-2687.

• Biliary Sepsis; A Challenging Infection

*- Published as oral presentation by the author in The 39th Annual meeting of ESS (International Surgical Week). Hybrid Conference) organized by the Egyptian Society of Surgeons (ESS), in collaboration with International Society of Surgeons (ISC/SIC). That was held at 7^th – 9^th April 2021; Sheraton Cairo Hotel, Cairo, Egypt.

• Laparoscopic Repair of Perforated Peptic Ulcer: Simple Closure Versus Omentopexy

Published in The Egyptian Journal of Hospital Medicine (October 2021) Vol. 85, Page 3080-3086.

• Completion Cholecystectomy; Is It Feasible Laparoscopically?

*- Published as oral presentation by the author in the 18th international congress& workshop of the Egyptian society of laparoscopic surgery (ESLS 2022), the 16th winter meeting of Mediterranean & Middle eastern endoscopic surgery association, and the 9th congress of the Egyptian society of metabolic & Bariatric surgery, February 17^th – 19^th 2022 Semiramis intercontinental Hotel, Cairo-Egypt

*- Published as oral presentation by the author in the 40^th Annual meeting of Egyptian society of surgeons organized by the Egyptian Society of Surgeons (ESS), in collaboration with International Society of Surgeons (ISC/SIC), International federation of surgical colleges (IFSC), and Turkish surgical society That was held at 30th March – 1st April  2022; Intercontinental Cairo Semiramis Hotel, Cairo, Egypt.

*- Published as oral presentation by the author in the scientific day organized by Tabuk pharmaceuticals on Friday 18^th March; 2022 Nile Elite Hotel, Sohag -Egypt

• Safe Surgery; Surgical mistakes

*- Published as oral presentation by the author in the scientific day organized by Farco pharmaceuticals on Tuseday 19^th March; 2022 Coral Hotel, Sohag -Egypt

• Comparative study of three common bile duct closure techniques after choledocho-lithotomy: safety and efficacy

*- Published in the Langenbeck’s Archives of Surgery; Published online: 04 July 2022

The article is available online here https://doi.org/10.1007/s00423-022-02597-3 

A PDF article here https://link.springer.com/content/pdf/10.1007/s00423-022-02597-3.pdf