Tokuda Hospital Sofia


Interventional Gastroenterology Department

The Interventional Gastroenterology Unit is part of the Gastroenterology and Pulmonology Clinic and consists of young and ambitious team of skilful and mutually completing each other doctors with contemporary knowledge of Gastroenterology and modern approaches towards patients with problems in this area.


The unit executes full range of diagnostic and therapeutic interventions with modern equipment: 

 - Diagnostic upper and lower endoscopy with modern HD equipment and routine usage of vitrual chromoendoscopy.

 - Endoscopic polypectomy and mucose resection, endoscopic resection of big size lesions, APC 

 - Intraoperative endoscopy 

- Endoscopic hemostasis - injection techniques, introducing of hemostatic clipses, thermic appraches, ligation of bleeding esophageal varices

 - Endoscopic retrograde cholangiopancreatography with all related therapeutic interventions - papillosphincterotomy, concrement extraction, endoscopic placing of prostheses with plastic or metal stents according to the indications, intraductal biopsy, ampulectomy, cholangioscopy. One of the specifics of the unit are the interventions for "complex" biliary concrements, including extraction of intrahepatic stones, stones in the bile tract with big sizes and number, wide balloon dilatation of Papilla Vateri, choledochoscopy, mechanical lithotripsy, extracorporeal lithotripsy (together with the Urology Department team). The unit offers very rare treatment of iatrogenic lesions of the bile tract and emergency ERCPG in patients with cholangitis and sepsis. Here is also executed endoscopic treatment for patients with pain and complex types of chronic pancreatitis - pancreatic sphincterotomy, stenting of the pancreatic duct, dilatations of strictures, extraction of concrements, extracorporeal lithotripsy (ESWL) of pancreatic stones and full volume interventions for bilie duct strictures, including hilar biliary obstruction. Together with the Liver, Biliary, Pancreatic and General Surgery Clinic, the unit executes intraoperative ERCPG (if indications are present) and laparoscopic assisted "rendez-vous" procedures. Other direction the unit is interested in is conducting of ERCPG for patients with previous surgeries of stomach and duodenum.

 - Endoscopic interventions of esophagus - ligation of varices, baloon dilatation, endoscopic placing of prostheses. Specific for the unit are treatment of patients with tracheoesophageal and bronchoesophageal fistulas (together with the Thoracic Surgery Department team), combined stenting of the esophagus and respiratory tract, endoscopic interventions of the esophagus for surgical complications, treatment of patients with early and late forms of radiation esophagitis.

 - Endoscopic placing of gastrostomas and probes for enteral nutrition. 

- Endoscopic placing of prosthesis for malignant distal stomach and duodenal obstruction.

 - Endoscopic treatment of anastomotic insufficiency and fistulas.

 - Endoscopic placing of gastric balloon for weight reduction.

 - Endoscopic extraction of foreign bodies from the Gastrointestinal tract.

  - Ultrasound of abdomen and retroperitoneum - contemporary diagnostics, including contrast-enhanced ultrasound, procedures under ultrasound and X-ray control - "trucut" biopsy of liver, pancreas, tumor masses in the abdomen and pelvis, retroperitoneal lymph nodes, blind liver biopsies, percutaneous drainage of intra abdominal and retroperitoneal collections, percutaneous transhepatic cholangiography (PTC) with drainage and options for "randez-vous" and combined approaches.

The Interventional Gastroenterology Unit has 12 beds and executes inpatient treatment for patients in wide range of clinical planned and urgent cases. Priority of the unit are patients with decompensated liver diseases - treatment, screening and preparation for liver transplantation, patients with chronic inflammatory bowel diseases (Ulcerous colitis and Crohn's disease), as well as all patients with indications for interventional procedures. There is potential for urgent admition and conducting of endoscopic interventions in emergency conditions in patients with acute bleeding from Gastrointestinal tract, purulent cholangitis and life-threatening biliary sepsis.

The unit strives to provide modern treatment according to the European and World recommendations, engagement and individual approach to each patient, their monitoring after discharging from the hospital.

Petko Karagyozov, MD, Interventional Gastroenterology Dept. Chief Dr. Karagyozov graduated medicine from Medical university Sofia in 2004. During the period between February 2005 and August 2011 he specialized and worked in the Gastroenterology and Hepatology Clinic of Military Medical Academy - Sofia, under the guidance of Prof. Krum Katzarov and Assoc. Prof. Dimitar Takov. In December 2012 Dr. Karagyozov acquired his specialty in Gastroenterology. In 2013 he completed spicialization in Gastroenterology in Shonan Kamakura General Hospital, Kanagawa, Japan, as part of a scientific exchange program among the hospitals in Tokushukai Medical Corporation. In 2014 he earned a scholarship from the European Society of Gastrointestinal Endoscopy (ESGE) and conducted a specialization in the Department of Interdisciplinary Endoscopy in Elisabethinen Hospital in Linz, Austria on the theme "Echo Endoscopy and endoscopic methods for treatment of chronic pancreatitis". Dr. Karagyozov competed also training programs in Gastroenterology and Therapeutic Endoscopy in Germany, Czech Republic, The Netherlands, and Italy.
Dr. Karagyozov is a member of the European Society of Gastrointestinal Endoscopy (ESGE), European Society for Medical Oncology (ESMO), Bulgarian Scientific Society for Gastroenterology.
Since 1st September 2011 he is part of Tokuda Hospital's team and since 1st February 2015 he is head of Interventional Gastroenterology Unit in Second Internal Medicine Clinic. He executed routinely upper and lower endoscopy, endoscopic retrograde cholangiopancreatography and all related to them therapeutic procedures, as well as percutaneous interventions under ultrasound and X-ray control. His interests are in the sphere of interventional treatment of pancreas diseases and biliary system. He is Doctor of the year in Tokuda Hospital Sofia for 2015.
Ivan Tishkov, MD, Gastroenterologist Dr. Tishkov graduated medicine from Medical University Prof. Dr. Paraskev Stoyanov - Varna in 2013. After his graduation he worked as a volunteer in the Department of Gastroenterology in Tokuda Hospital Sofia. Since April 2014 he is full member of the Second Clinic for Internal Medicine. In June 2014 he is assigned as a resident in the Department of Gastroenterology for the period 2014 - 2018 after succesfully passing of an exam. His professional interests are directed to the following areas: diagnostic and therapeutic upper and lower endoscopy, ERCPG, manipulations under ultrasound and X-ray control. He is a member of the Bulgarian Scientific Gastroenterologic Society.
Irina Boeva, MD, Gastroenterologist
Zhenya Georgieva, MD, Gastroenterologist Dr. Georgieva graduated medicine from Medical University Plovdiv in 2008. She worked in several Gastroenterological Departments in Hopitals in the area of Plovdiv and Pazardzhik and the same time she worked in the other directions of Internal Medicine also in Emergency Unit. In 2012 she started residency in Military Medical Academy under the guidence of Prof. Krum Katzarov and Assoc. Prof. Handzhiev. She is a co-author of publication together with Assoc. Prof. Handzhiev. Since January 2015 dr. Georgieva is a member of Tokuda Hospital Sofia, since the creation of the Interventional Gastroenterology Unit.
Vasil Koynarski, MD, Gastroenterologist
Inna Dobreva, MD, gastroenterologist
Violeta Mitova, MD, Gastroenterology Resident Physician




Interventional Gastroente…


Hospital location

51B "Nikola I. Vaptsarov" blvd. (if you drive, the entrance is from "At. Dukov" str.), "Hladilnika" distr., 1407 "Lozenets".

The hospital has a parking lot. The first 30 min. are free of charge, then a fee of 3 bgn/hours applies.

Public transport:
Buses: №88, 120
Shuttle bus: 32

Subway: Getting off at "James Bourchier" station, after that walking through "Lozenets" distr., or tram №10, taking off at "Nikola I. Vaptsarov" stop. or a bus №88, taking ff at "Tokuda Hospital" stop.


From the Central Railway Station

Bus line №305 getting off at "Romanian embassy" stop
From "Romanian embassy" stop – Bus line №120 getting off at "Tokuda Hospital" stop.
(after the traffic lights at "Atanas Dukov" str.

With a subway, from "Central Railway Station" station, getting off at "James Bourchier" station, after that walking through "Lozenets" distr., or tram №10, taking off at "Nikola I. Vaptsarov" stop. or a bus №88, taking ff at "Tokuda Hospital" stop.