Gastrointestinal, Colorectal and Advanced Transanal Surgery
Prof. Dr. Ersin Gündoğan
Treats patients in the fields of laparoscopic surgery, adrenal gland surgery, obesity surgery and gastrointestinal tumour surgery.
Understand your condition and your operation
Symptoms, diagnosis, treatment and recovery are explained for the conditions (17) and operations (9) covered here.
Patient guide
Surgical technique videos
This section contains narrated case videos, training materials and recommended literature.
Resident educationAreas of specialty
Patient guide- Gallbladder, liver, pancreasDiagnosis and surgical treatment of gallstones, pancreatic cancer and liver tumours.
- Adrenal glandsAssessment of masses detected in the adrenal gland and their surgical treatment using minimally invasive methods.
- Stomach and oesophagusSurgical treatment of stomach cancer, reflux disease and obesity.
- HerniaRepair of groin hernias using open and minimally invasive methods.
- Bowel and anusSurgical treatment of large bowel and rectal cancers, and of anal region conditions such as haemorrhoids, fistula and pilonidal sinus.
Treatment process
Below you can find what is done at each stage, from the first examination to the check-up after surgery, and what is expected of you.
1. First examination20–30 minutes
Your complaints are listened to and a physical examination is carried out. Any tests you have had before are reviewed.
2. Diagnosis and testsA few days – 2 weeks
The necessary blood tests and imaging studies are planned. The results are reviewed together with you.
3. Preparation for surgery1–7 days before surgery
An anaesthetic assessment is carried out. You are given instructions about the fasting period and the medicines you take.
4. Day of surgeryVaries with the operation
You are admitted to hospital and prepared for surgery. Your relatives are kept informed about the process.
5. Discharge and follow-upFirst check-up after 7–10 days
You are told what to look out for at home and how to care for your wound. Your follow-up appointment is scheduled.
Academic work
Studies on laparoscopic colorectal surgery and natural orifice specimen extraction (NOSE) have been published in international peer-reviewed journals.
- 2021Results of a series of colorectal operations performed with natural orifice specimen extraction, and a systematic review of the literature.
- 2021A study comparing removal of the tissue taken out during right colon surgery through a natural opening instead of an abdominal incision.
- 2018A study examining the effect of using a drain in gastric bypass surgery on pain after the operation.
- 2021Colorectal surgeryA study comparing removal of the tissue taken out during right colon surgery through a natural opening instead of an abdominal incision.Natural orifice specimen extraction versus transabdominal extraction in laparoscopic right hemicolectomy
- 2018Upper gastrointestinal surgeryA study examining the effect of using a drain in gastric bypass surgery on pain after the operation.Influence of drain placement on postoperative pain following laparoscopic Roux-en-Y gastric bypass
- 2018Hepatopancreatobiliary surgeryA clinical study examining how often the gallbladder is perforated during keyhole gallbladder surgery, and the consequences.Gallbladder perforation during elective laparoscopic cholecystectomy