Best Hemorrhoidectomy surgeons: TOP 115 doctors

• Surgical treatment: laparoscopic operations to remove all types of hernias (inguinal hernias, femoral hernias, umbilical hernias, postoperative ventral hernias, esophageal opening of the diaphragm and other types of abdominal wall hernias).

• Treatment of gallstone disease, removal of the gallbladder (cholecystectomy), stones in the ducts.

• Operative treatment for acute conditions (acute appendicitis, acute cholecystitis, perforating ulcer, perforation of a diverticulum, intestinal obstruction, purulent-septic diseases), all conditions of "acute abdomen".

• Treatment of oncological diseases of the stomach, intestines and other organs of the abdominal cavity and retroperitoneal space.

• Treatment of varicose veins of the legs.

• Operative treatment of obesity (bariatric surgery) and metabolic dysfunction.

• Colitis, hemorrhoids, anal itching, fissures, constipation and diarrhea, anal sphincter weakness, anal sphincter incontinence due to rupture of the perineum after childbirth.

• Abdominal injuries.

• Perianal condylomas.

• Polypos.

• Proctitis, paraproctitis and others.

Was born in 1981 in Erzincan. After finishing Beşiktaş Atatürk Anadolu High School in 1999 entered Istanbul University Çapa, Faculty of Medicine. 

In 2005 I got his Master Degree and started as a practitioner at Yüksekova State Hospital. He got his Doctorate at Okmeydanı Training and Research Hospital in General Surgery department. As a General Surgery Specialist, he worked at Zonguldak Atatürk State Hospital for 5 years and at Sancaktepe Şehit Prof. Dr. İlhan Varank Training and Research Hospital for 3 years. 

Worked as an Assistant Professor at Istanbul Medipol University, Department of General Surgery. Currently working at Medipol University Pendik Hospital. 

Experience 

• 2016 - 2017

İSTİNYE UNIVERSITY FACULTY OF MEDICINE

• 2016 - 2017

Liv Hospital

• 2016 - 2017

Liv Hospital Ulus

• 2015 - 2016

Acıbadem Bodrum Hospital

• 2014 - 2015

Tatvan State Hospital

• 2013 - 2015

Tatvan State Hospital

• 2012 - 2013

CLEVELAND CLINIC

• 2007 - 2014

Dokuz Eylul University Faculty of Medicine

Education 

• 2013

DOKUZ EYLÜL UNIVERSITY FACULTY OF MEDICINE, FACULTY OF MEDICINE/DEPARTMENT OF SURGICAL MEDICAL SCIENCES/DEPARTMENT OF GENERAL SURGERY

• 2013

Dokuz Eylül University, General Surgery

• 2007

AKDENİZ UNIVERSITY, FACULTY OF MEDICINE

• 2007

International Peer-Reviewed Journal Articles:

Title: The impact of sarcopenia on morbidity and long-term survival among patients with peritoneal metastases of colorectal origin treated with cytoreductive surgery and hyperthermic intraperitoneal chemotherapy: a 10-year longitudinal analysis of a single-center experience.

• Authors: AĞALAR CİHAN, SÖKMEN SELMAN, ARSLAN ÖZŞAHİN NACİYE ÇİĞDEM, ALTAY CANAN, BAŞARA AKIN IŞIL, CANDA ARAS EMRE, OBUZ FUNDA
• Journal: Techniques in Coloproctology
• Year: 2020
• Volume: 24(4)
• Pages: 301-308
• DOI: 10.1007/s10151-020-02159-z
• Publication Number: 6776368

Title: Randomized controlled trial of 8 weeks’ vs 12 weeks’ interval between neoadjuvant chemoradiotherapy and surgery for locally advanced rectal cancer.

• Authors: Terzi Cem, Bingül Mustafa, ARSLAN NACİYE ÇİĞDEM, ÖZTÜRK ERSİN, CANDA ARAS EMRE, IŞIK ÖZGEN, YILMAZLAR AHMET TUNCAY, OBUZ FUNDA, Görken Birkay, KURT MERAL, ÜNLÜ ŞADİYE MEHTAT, UĞRAŞ NESRİN, Kanat Özkan, ÖZTOP İLHAN
• Journal: Colorectal Disease
• Year: 2020
• Volume: 22(3)
• Pages: 279-288
• DOI: 10.1111/codi.14867
• Publication Number: 6012919

Title: The effect of fibrin glue in preventing staple-line leak after sleeve gastrectomy: an experimental study in rats.

• Authors: ÖZDENKAYA YAŞAR, OLMUŞÇELİK OKTAY, BASIM PELİN, SAKA BURCU, ARSLAN NACİYE ÇİĞDEM
• Journal: Acta Cirurgica Brasileira
• Year: 2019
• Volume: 34(8)
• Publication Number: 5242669

Title: Treatment of intraoperatively detected peritoneal carcinomatosis of colorectal origin with cytoreductive surgery and intraperitoneal chemotherapy.

• Authors: CANDA ARAS EMRE, ARSLAN NACİYE ÇİĞDEM, Terzi Cem, Sokmen Selman, YAVUZŞEN TUĞBA, Ozkardesler Sevda, Unlu Mehtat, OBUZ FUNDA, FÜZÜN MEHMET
• Journal: World Journal of Surgical Oncology
• Year: 2018
• Volume: 16(1)
• Pages: 70-74
• DOI: 10.1186/s12957-018-1369-7
• Publication Number: 4863133

Title: Magnetic resonance-based pelvimetry and tumor volumetry can predict surgical difficulty and oncologic outcome in locally advanced mid–low rectal cancer.

• Authors: Atasoy Gulsen, ARSLAN NACİYE ÇİĞDEM, Elibol Funda, SAĞOL ÖZGÜL, OBUZ FUNDA, SÖKMEN SELMAN
• Journal: Surgery Today
• Year: 2018
• Volume: 48(12)
• Pages: 1040-1051
• DOI: 10.1007/s00595-018-1690-3
• Publication Number: 4863005

Title: Is advanced age a hesitation for cytoreductive surgery and hyperthermic intraperitoneal chemotherapy in colorectal cancer?

• Authors: Terzi Cem, Sokmen Selman, ARSLAN NACİYE ÇİĞDEM, Ozkardesler Sevda, DURAL CEMIL, OBUZ FUNDA, CANDA ARAS EMRE, GÖKTÜRK ÜMIT KELEŞTEN
• Journal: International Journal of Surgery
• Year: 2018
• Volume: 51
• Pages: 156-160
• DOI: 10.1016/j.ijsu.2018.01.010
• Publication Number: 4855751

Contributions to Conferences:

Title: Outcome of cytoreductive surgery and hyperthermic intraperitoneal chemotherapy for colorectal cancer: A single-center experience.

• Authors: CANDA ARAS EMRE, Sokmen Selman, Terzi Cem, ARSLAN NACİYE ÇİĞDEM, OBUZ FUNDA
• Conference: European Society of Surgical Oncology (ESSO) Congress
• Year: 2018
• Location: Budapest, Hungary

Title: Predictive factors for conversion to open surgery in laparoscopic colorectal surgery.

• Authors: ARSLAN NACİYE ÇİĞDEM, Terzi Cem, Sokmen Selman, CANDA ARAS EMRE, OBUZ FUNDA
• Conference: European Association for Endoscopic Surgery (EAES) Congress
• Year: 2017
• Location: Frankfurt, Germany

Dr Ahmed M. Ammar 

Consultant Laparoscopic and Bariatric Surgeon

Lecturer of General and Laparoscopic Surgery 

Faculty of Medicine, Cairo University

MB Bch, MSc Surgery, MD Surgery, MRCS England 

Member of the European Hernia Society 

Dr Ammar has a 10 year experience in practicing general and laparoscopic surgery. He is specialized in laparoscopic procedures involving laparoscopic repairs of different types of hernias, bariatric procedures, biliary procedures. 

Surgeries are performed in the best hospitals well known for its safety and hospitality standards, using the best laparoscopic instruments and setting. 

A lifelong follow up of our patients is always provided

Specializations

Cancer Surgery

Pancreatic Surgery

Bile Duct Surgery

Bariatric Metabolic Surgery

Oncological Surgery

Breast Surgery

Gastric cancer

Colon cancer

Thyroid Cancer

Obesity Surgery

Diabetes Surgeries

Education

Ondokuz Mayıs University Faculty of Medicine (1991)

KTÜ Faculty of Medicine Farabi Hospital (Specialization.1998)

Istanbul University Çapa Faculty of Medicine (Laparoscopic Surgery Training, 2002)

Istanbul University Çapa Faculty of Medicine (Laparoscopic Antireflux Surgery Training, 2006)

Istanbul University Cerrahpaşa Faculty of Medicine (General Surgery Clinic Advance Laparoscopic Surgery, Laparoscopic Bariatric Surgery, Morbid Obesity and Oncological Cancer Surgery Training, 2010i)

Specializations

Cancer Surgery

Pancreatic Surgery

Bile Duct Surgery

Bariatric Metabolic Surgery

Oncological Surgery

Breast Surgery

Gastric cancer

Colon cancer

Thyroid Cancer

Obesity Surgery

Diabetes Surgeries

• AREAS OF INTEREST
• Abdominal lining cancers
• Gastric cancer
• Colon rectum cancer
• pancreatic cancer
• breast cancer diseases
• Thyroid cancer diseases
• Liver gallbladder surgery
• Laparoscopic cancer surgery

• Education
• 1993 Ondokuzmayıs University Faculty of Medicine
• 2000 Ankara University Faculty of Medicine Medical Specialization
• 2007 Ankara University Surgical Oncology Sub-branch Specialization

• Experience
• 1995-2000 Ankara University Faculty of Medicine Department of General Surgery Res.Asst.
• 2001-2002 Cumhuriyet University Faculty of Medicine Department of General Surgery Lecturer
• 2002-April 2004 Cumhuriyet University Faculty of Medicine Department of General Surgery Assoc. Prof.
• 2004- October 2007 Ankara University Faculty of Medicine, Surgical Oncology Subspecialty Training
• October 2006 Cumhuriyet University Faculty of Medicine, Department of General Surgery, Associate Professor
• January 2012 Cumhuriyet University Faculty of Medicine, Department of General Surgery, Professor

• Memberships in Scientific Organizations
• Surgical Oncology Association, Turkish Surgical Association
• Turkish Colon and Rectal Surgery Association
• National Vascular Surgery Association, Turkish Medical Association
• Refereeing in Scientific Journals
• Turkish Journal of Surgery
• Turkish Clinics Journal of Medical Sciences
• Cumhuriyet Medical Journal  
• Dicle Medical Journal

• Awards
• Best Research Award (E19)
• Surgical Oncology Congress (Istanbul, 2003)
• Poster 3rd Place Award (E7)
• Poster 1st Place Award (E51)
• Clinical Enteral Parenteral Nutrition
• Congress (Istanbul, 2000)
• TÜSAD (Çeşme 2012)
•  
•  
• Education and Training:
• Medical Degree: Graduated from Ankara University Faculty of Medicine.
• Specialization in General Surgery: Completed residency at Ankara University Faculty of Medicine from 1995 to 2000.
• Subspecialty in Surgical Oncology: Advanced training in Surgical Oncology at Ankara University from 2004 to 2007.

• Professional Experience:
• Academic Roles: Served as Assistant Professor and Associate Professor at Cumhuriyet University Faculty of Medicine, contributing significantly to medical education and research from 2001 to 2004.
• Current Position: Practicing at İstinye University Hospital Medical Park Gaziosmanpaşa, Istanbul, where he provides expert surgical oncology and general surgery services.

• Areas of Expertise:
• Cancer Surgery: Specializes in colorectal, gastric, pancreatic, and liver cancers, with extensive experience in managing complex oncological cases.
• General Surgery: Expertise in treating conditions such as gallstones, hernias, thyroid disorders, and gastrointestinal diseases.
• Advanced Surgical Techniques: Proficient in minimally invasive laparoscopic and robotic surgeries, ensuring better outcomes and quicker recovery for patients.

• Achievements and Recognition:
• Published Research: Authored numerous articles in prestigious medical journals, contributing to advancements in surgical oncology.
• Professional Awards: Recipient of the Best Research Award at the Surgical Oncology Congress in Istanbul (2003) and a Poster Award for his contributions to cancer research.

Gallbladder and bile duct surgery

Breast disease treatment and surgery

Anal region disease treatment and surgery (hemorrhoids, anal fissure, perianal abscess and fistula surgery)

Obesity treatment (Gastric balloon, botox and surgical treatment)

Thyroid diseases and surgical treatment

Hernia surgery (open and laparoscopic) (groin, umbilical, wound hernias)

Colon, rectum, stomach diseases and surgical treatment

Endoscopic diagnosis and treatment interventions (gastroscopy, colonoscopy, ercp, peg)

2009- Atlas University Medicine Hospital

2004-2009 Tosya State Hospital

1994-2004 Taksim Education and Research Hospital

1999-2004 Taksim Education and Research Hospital General Surgery Clinic

1992-1998 Istanbul University Istanbul Faculty of Medicine

Courses and Conferences

Bakırkoy Dr. Sadi Konuk Education and Research Hospital General Surgery Clinic Endoscopy Unit Videoendoscopy Application Certificate (March 2006)

Education and Experience

Dr. Ramazan Gökhan Atış, born in Istanbul in 1978, graduated from Cağaloğlu Anatolian High School in 1996. He completed his medical education at Çapa Faculty of Medicine in 2002. Between 2002 and 2008, he received his specialization training at the Istanbul Şişli Etfal Training and Research Hospital Department of Urology, and obtained the title of Urology Specialist in February 2008. After working at Edremit Military Hospital between 2008 and 2009, he started working as a Urology specialist at Istanbul Göztepe Training and Research Hospital in 2009. In 2011, he underwent a 3-month Laparoscopy-Robotic Urology training at Heidelberg University Heillbronn Clinic. Between 2009 and 2014, he conducted numerous scientific research studies, especially in the field of endourology, and obtained the title of Associate Professor in September 2014. In 2017, he was elected as a board member of the Endourology Society and has been serving in this position since then. Since 2018, he has been actively involved in the Endourology working group of the European Association of Urology, Young Academic Urologists (EAU-YAU) Committee for a period of 2 years. In January 2021, he was appointed as a Professor at the Istanbul Medeniyet University Department of Urology.After that started working at Şişli Memorial Hospital in 2022. Prof. Dr. Ramazan Gökhan Atış, has more than 100 articles published in national and international journals.

• 1996 - 2002, Istanbul University Istanbul Faculty of Medicine, Undergraduate
• 2002 - 2008, Şişli Etfal Training and Research Hospital/Istanbul, Specialization in Medicine
• 2014, Istanbul Medeniyet University Goztepe Training and Research Hospital, Associate Professorship
• 2021, Istanbul Medeniyet University Department of Urology, Professorship

Administrative Duties

• Editor of Endourology Bulletin
• Board Member of Endourology Society (Secretary General)

Memberships in Scientific Organizations

• Turkish Urology Association
• Turkish Endourology Association
• Turkish Andrology Association
• Eurasian Urooncology Association
• Turkish Medical Association