All of our treatment services in the General Surgery Unit of Ekol Hospitals are provided by our experienced and specialized physicians and healthcare personnel in a patient-oriented, service-friendly, reliable and transparent manner. All emergency surgical procedures and all laparoscopic surgical operations in this unit are performed successfully.

All treatment processes planned with respect to patient health, especially obesity operations, are supported by consultations of other branches and physicians of our hospital.

– Obesity and Metabolic Surgeries

– Laparoscopic Reflux Surgeries

– Gastric Balloon Procedure

– Laparoscopic Stomach and Intestinal Cancer Surgeries

– Endoscopy Unit:


– Hemorrhoid Surgeries


– Stomach and Inguinal Hernia Surgeries

– Breast Cancer Surgeries

– Thyroid Gland Cancer and Goiter Surgeries


Gastric Sleeve operation, also known as Tube Stomach Operation, is performed under laparoscopic (closed) method and under general anesthesia. This type of obesity surgery is the most common method applied in the late period. It is the process of making the stomach a tube via starting from the end point of the pylorus, the end point of the stomach, at a distance of about 3-6 cm by means of special tools. Approximately 45 minutes after the process, approximately 75-80% of the stomach is removed.

With the diet and nutrition program that is specifically prepared for the patient after the operation, the patient achieves his/her healthy weight within 10-12 months.

How Does the Sleeve Gastrectomy Cause Weight-Loss?

Sleeve gastrectomy is a restrictive procedure. It greatly reduces the size of the stomach and limits the amount of food that can be eaten at one time. It does not cause decreased absorption of nutrients or bypass the intestines. After this surgery, patients feel full after eating very small amounts of food. Sleeve gastrectomy may also cause a decrease in appetite. In addition to reducing the size of the stomach, the procedure reduces the amount of the “hunger hormone,” ghrelin, produced by the stomach.1 the duration of this effect is not clear yet, but most patients have significantly decreased hunger after the operation.

Advantages of sleeve gastrectomy

  • Stomach volume is reduced in size, but functions normally after sleeve gastrectomy.
  • Minimizes the chance of an ulcer occurring in the stomach
  • Sleeve gastrectomy has only a small risk of bowel blockage or vomiting from a blocked stomach
  • Much less food intolerance than after a gastric band
  • Can be done keyhole (laparoscopic ally)

Post-operation diet advice for Sleeve Gastrectomy

The changes to your digestive system involved in sleeve gastrectomy mean that you will need to follow a specific diet. A dietician will see you before you are discharged from hospital to assist you with the changes needed for your new lifestyle. After the second day of the surgery, you can start fluid in taking slowly and on the third day you can take fluids regularly for 14 days and after that

time, you can start eating soft foods. You will be able to eat all kind of foods after the 4th week of the surgery.

  • Eat small, frequent meals at least six times per day.
  • Everyone tolerates foods differently. Avoid those foods known to cause you problems.


A gastric balloon aims to reduce feelings of hunger and help you feel fuller for longer after eating only small meals. Also known as an intragastric balloon, this type of weight loss treatment can help you lose weight without invasive surgery. During the procedure a soft balloon is inserted into your stomach through your mouth, using an endoscope (a thin, flexible telescope). The balloon is then filled with saline solution to partially fill your stomach, leaving less room for large amounts of food or drink. A gastric balloon is designed to be a temporary weight loss solution, and will usually beremoved after six months. It is sometimes used to help you lose enough weight to undergo gastric banding or gastric bypass surgery.

Who is the intragastric balloon suitable for?

The intragastric balloon is designed to assist with weight loss in people who is suffering obesity for at least 5 years. The BMI with a 30 and lower. It is also used for people who are not suitable for other forms of weight loss surgery. The use of the Gastric Balloon may assist in reducing weight prior to surgery, therefore reducing the risks associated with surgical procedures on overweight patients.

How is the gastric balloon procedure performed?

The balloon is introduced into the stomach through the mouth without the need for surgery. The doctor inserts an endoscopic camera (gastroscope) into the stomach. If no abnormalities are observed, the balloon is placed through the mouth and down the oesophagus into the stomach.

Once inside the stomach, it is then filled with a sterile saline solution, through a small filling tube attached to the balloon. Once filled, the doctor removes the tube by gently pulling on the external end, leaving the balloon inside the stomach.

This procedure is performed by a qualified specialist gastroenterologist alongside an anesthetist and trained nursing staff at several day surgeries and private hospitals throughout within Sydney.

Placement of the balloon takes approximately 20 minutes, after which patients are monitored by nursing staff in the recovery bay. As this is a “day-only” procedure, patients are generally discharged home within two hours after balloon insertion.

Gastric Sleeve

Gastric sleeve operation might be the most common and popular one when it comes to weightloss ( obesity, bariatric) surgeries. %80 percent of the stomach is removed so that the patient eats less and loses weight ideally in one year. The results are proved, and the procedure is safe.




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He graduated from Ege University Faculty of Medicine in 1991. In 1996, he became a General Surgery Specialist. In 2007, he received the Turkish Surgery Association Qualification (Board) Certificate. In 2007, he received the title of “Associate Professor of General Surgery”. In 2013, he became a Professor. He is an active member of International Society for Regional Cancer Treatment, Turkish Surgical Association, Turkish Colon and Rectal Surgery Association, Turkish Hepatopancreatobiliary Surgery Association, National Endoscopic Laparoscopic Surgery Association, Trauma and Emergency Surgery Association, Aegean Region Surgery Association, Izmir Breast Diseases Association, Turkish Surgical Association Competency Board, and Society of Dialogue in Endocrinology. He has more than 40 articles published in international indexed journals, more than 50 articles published in national journals. he has given more than 90 verbal and poster presentations in international and national congresses and symposiums and written two book chapters. He has won 6 awards in national and international congresses. Areas of interest: Obesity surgery and metabolic surgery, Laparoscopic reflux surgery, Laparoscopic gallbladder surgery, Stomach balloon application, Laparoscopic gastric and intestinal cancer surgeries, Haemorrhoid surgeries, Abdominal and inguinal hernia surgeries, Breast Cancer Surgery, Thyroid cancer and goitre surgery.   Prof. Dr. Hayrullah Derici is married and has two children. He speaks German and English well.

He was born in 1977 in Izmir. He graduated from Ege University Faculty of Medicine, and then he received his general surgery residency between 2000 and 2005 at Izmir Ataturk Training and Research Hospital. Assoc. Prof Ismail Yaman served as a general surgeon between the years of 2005 and 2009 in Manisa Public Hospital. In 2009, he started working as an Assistant Associate Professor in the Balıkesir University Faculty of Medicine where he had the opportunity to study Hiatus Hernia, Laparoscopic Colon Resection Surgery and the high level of Endoscopy which was accomplished for the first time here by himself. In 2013, Assoc. Prof Ismail Yaman was granted a patent with a device called “aspirasyon aparatı” (aspiration device) which was designed by himself. From 2010 to 2014, in order to get the training and experience in the high level of Endoscopy and Laparoscopic Colon Resection Surgery, he worked as a trainer in the field of Endoscopy at Istanbul Cerrahpaşa Faculty of Medicine, where he gained a trainer certificate in this field. In 2014, Assoc. Prof. Dr. Ismail Yaman became an Associate Professor. Since 2010 he has been giving highly effective lectures for undergraduate and postgraduate students. In addition, he has published numerous articles in both national and international scientific journals. His research interests are: Metabolic and Bariatric Surgery, Gastro Oesophageal Reflux, Gallbladder, Abdominal and Inguinal Hernia, Breast Cancer, Thyroid Cancer and Goiter Surgery.

He completed his medical education at Dokuz Eylul University Faculty of Medicine between 1995 and 2001. He specialized in General Surgery at Ankara Training and Research Hospital between 2001 and 2006. He worked as a General Surgery Specialist at Ankara Training and Research Hospital between 2006 and 2008 and later at Ordu State Hospital between 2008 and 2013. In 2016, he received the title of Associate Professor in the Department of General Surgery, Faculty of Medicine, Izmir University. In 2015, he received the Turkish Surgical Association Proficiency Exam (Board) Certificate of Achievement. He is a member of Turkish Surgical Association, Turkish Colon and Rectum Surgery Association, National Endoscopic Laparoscopic Surgery Association, Bariatric and Metabolic Surgery Association, and Hepatobiliary Surgery Association. Between 2014 and 2016, he taught many undergraduate and graduate courses at Izmir University Faculty of Medicine. He has conducted many national and international studies and these studies have received many citations. Assoc. Prof. Dr.  Ömer Yoldaş speaks English fluently. He has two children.


Knowledge Domain: Obesity Surgery and Metabolic Surgery, Laparoscopic Reflux Surgery, Laparoscopic Gallbladder Surgeries, Gastric Balloon Application, Gastric Botox Application, Laparoscopic Gastric and Intestinal Cancer Surgeries, Haemorrhoid Surgeries, Perianal Fistula Surgeries, Laparoscopic Abdominal and Groin Hernia Surgeries, Breast Cancer Surgeries, Thyroid Cancer and Goitre Surgeries.

He graduated from Dokuz Eylül University, Faculty of Medicine. Between 1987 and 1991, he completed his specialization in general surgery at Buca SSK Hospital in Izmir. Between 1991 and 2016, he worked at Karşıyaka State Hospital, then until 2019 he worked as the General Surgery Specialist at Çiğli Training and Research Hospital. He is an active member of Turkish Surgical Association, Turkish Society of Colon and Rectal Surgery. He has experienced around 30,000 successful operations in the field of general surgery. Areas of interest: Laparoscopic gallbladder operations, gastrointestinal surgery, haemorrhoids and fissure surgeries, abdominal and inguinal hernia operations, breast cancer operations, thyroid cancer and goiter operations. Op. Dr. Attila El is married and has one child. He speaks fluent English.

He completed his medical education at Osmangazi University Faculty of Medicine between 1990 and 1996, and his residency in General Surgery at Izmir Training and Research Hospital between 2004 and 2008. In 2008, he received the Turkish Surgical Association's Qualification Exam (Board) certificate of success. He is a member of Turkish Surgical Association, Turkish Colon and Rectum Surgery Association, National Endoscopic Laparoscopic Surgery Association, Bariatric and Metabolic Surgery Association. He worked as a lecturer at Istanbul Rumeli University between 2017 and 2020. He currently performs Laparoscopic Oncosurgery and Obesity Surgeries. He has many national and international studies and these studies have received many citations.   Having a good command of English, Opr. Dr. Özgür Kavak is married and has two children.


Areas of interest: Laparoscopic Sleeve Gastrectomy, Laparoscopic Full Gastric Bypass, Laparoscopic Mini Bypass, Laparoscopic Type 2 Diabetes Surgery, Gastric Balloon Application with Endoscopic Method. In Non-Surgical Obesity Treatments:  Stomach Botox (Endoscopic), Laparoscopic Oncology Surgery (Colorectal, Stomach, Pancreas, Adrenal), Reflux - Gastric Hernia Surgery (Laparoscopic), Minimally Invasive Surgery, Laparoscopic Hernia Surgery, Endocrine Surgery (Thyroid - Breast Surgery), Haemorrhoid Surgery with Laser, Haemorrhoidopexy (LHP), Perianal Fistula Surgery with FILAC (Fistula Laser Closure) Method.