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Best Resection of gallbladder gastroenterologists: TOP 85 doctors

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Content meets the Bookimed Editorial Policy and is medically reviewed by
Fahad Mawlood - General practitioner. Winner of 4 scientific awards. Served in Western Asia. Former Team Leader of a medical team supporting Arabic-speaking patients. Now responsible for data processing and medical content accuracy.
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Andreas Kirschniak
General surgeon
30 years of experience

Andreas Kirschniak

General surgeon
30 years of experience
Germany, Dusseldorf
Клинический комплекс "Мария Хильф"
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Osman Aktas
Gastrointestinal surgeon
33 years of experience
Turkey, Istanbul
Avicenna International Hospital

Osman Aktas

Gastrointestinal surgeon
33 years of experience

Dr. Osman Aktas has been serving as a general surgeon at Ataşehir Avicenna Hospital since 2005. Born in Kayseri in 1960, he graduated with his medical degree from Ankara University in 1983. Following his graduation, he fulfilled his military service in medical units for two years. He completed his general surgery residency at GATA from 1986 to 1990. After specializing in general surgery, He held key positions as head of general surgery departments and chief physician in several prominent military hospitals, including Tatvan, Diyarbakır, Ankara, and Manisa.

Dr. Osman has had a special focus on endoscopic surgery since 1995. He received advanced training in laparoscopic surgery techniques in Germany and has successfully performed a wide range of laparoscopic procedures. His expertise extends to gallbladder surgery, abdominal wall and inguinal hernia repairs, appendicitis, reflux and stomach surgeries, as well as complex cases such as gastrointestinal tumors, intestinal obstructions, and various other intestinal diseases, all managed through minimally invasive methods.

In 2002, Dr. Osman transitioned to the private sector, where he broadened his practice to include modern treatments for anal diseases like hemorrhoids, fistulas, and fissures, utilizing advanced techniques such as laser therapy.

Dr. Osman is also recognized for his significant contributions to oncological surgery. He has a wealth of experience in the surgical treatment of various cancers, including breast and thyroid cancer, where he has implemented new treatment methods that reduce the risk of complications. His surgical expertise spans critical cancer surgeries, such as the Whipple procedure for pancreatic cancer, colorectal cancer resections, gastric cancer, and other complex malignancies. Additionally, his skills in metabolic surgery have led to lasting outcomes for patients suffering from obesity and diabetes, ensuring a better quality of life through sustained weight loss and reduced risk of diabetes.

With his vast experience and advanced skills in both laparoscopic and cancer surgeries, Dr. Osman remains at the forefront of surgical excellence, offering innovative and comprehensive care to all his patients.

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Mohamed Aly
Gastrointestinal surgeon
14 years of experience
United Kingdom, London
Mohamed Aly FRCS, Gastrointestinal Surgeon

Mohamed Aly

Gastrointestinal surgeon
14 years of experience

Mr. Mohamed Aly MBBCh MPhil FRCS is a consultant general surgeon with a specialist interest in upper gastrointestinal (GI) surgery and minimally invasive (keyhole) procedures. He is also a Senior Clinical Lecturer at Brunel University London. His research interests include patient perspectives on surgical outcomes, health tourism, and advancing surgical safety standards. Mr. Aly has a busy general surgery practice that includes both elective surgeries, such as hernia repairs, gallbladder surgery, and upper GI endoscopy. His emergency surgery work includes appendicitis, bowel obstructions, obstructed hernias and other acute abdominal conditions.Mr. Aly trained extensively in prestigious institutions across the UK, including the University of Cambridge, and he completed advanced training at Luton and Dunstable Hospital, one of the UK’s highest volume complex Upper GI centres.In addition to his clinical practice, Mr. Aly is actively involved in surgical research. He has published influential work in the British Journal of Surgery (BJS) and has contributed to studies on patient-reported outcomes, particularly in hernia surgery. He also leads national audits which record patient outcomes following complex surgery, ensuring that the safety and outcomes of patients requiring emergency surgery are scrutinized and improved nationwide.Fluent in both English and Arabic, Mr. Aly places great emphasis on clear communication with his patients. He ensures that each patient is fully informed about their treatment options and is committed to delivering safe, effective, and personalized care.

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Cemalettin Ertekin
Colorectal surgeon
43 years of experience
Turkey, Istanbul
Biruni University Hospital

Cemalettin Ertekin

Colorectal surgeon
43 years of experience

Education

  • Undergraduate - Istanbul Faculty of Medicine Istanbul University 1976-1982
  • Assistant - Department of General Surgery - Adana Province Feke District, Incirli Health Center 1982-1984
  • Assistant General Surgeon - Department - Sisli Etfal Hospital 1984-1985
  • Specialist - General Surgery Istanbul University, Istanbul Faculty of Medicine 1985-1988
    Assistant. Associate Professor Department of General Surgery - Istanbul University, Istanbul Faculty of Medicine 1993-1999
  • Professor Department of General Surgery Istanbul University, Istanbul Faculty of Medicine 1999-Present
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Experience

  • Undergraduate Istanbul University Istanbul Faculty of Medicine 1976-1982
  • Assistant Adana Province Feke District, İncirli Health Center 1982-1984
  • Assistant Sisli Etfal Hospital 1984-1985
  • Specialist Istanbul Faculty of Medicine 1985-1988
  • Specialist Şırnak 23rd Border Gendarmerie Brigade (15 January-15 March short term) 1993
  • Associate Professor Istanbul University Istanbul Faculty of Medicine 1993-1999
  • Professor Istanbul University Istanbul Faculty of Medicine, Department of General Surgery Professor 1999-Present
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Scientific Memberships

  • National Surgical Association
  • National Society for Trauma and Emergency Surgery
  • Istanbul Medical Chamber
  • ESTES (International)

Awards

  • National Scientific Patent Award 2017.
  • Gök A. F. K., Ertekin C., Video Paper First Prize , Istanbul Surgical Association, March 2015
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Medical Intrests

  • Pancreatico-Biliary Surgery
  • Gastroenterology Surgery
  • Endoscopic diagnosis treatment
  • Trauma and Emergency Surgery
     
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