1. Comparing the advantages and disadvantages of carbon dioxide versus normal saline as distension media in hysteroscopy (T. Stankova, A. Ganovska, S. Kovachev)
2. Comparative study on retrograde intrarenal surgery versus minimally invasive percutaneous nephrolithotomy for the treatment of renal stones 20-30 mm (I.Saltirov, K. Petkova)
3. Protective defunctioning stoma in laparoscopic intrasphincteric rctum resection (D. Kostov, G. Kobakov, D. Jankov)
4. Resolution of major comorbidities in patients with morbid obesity underwent biliopancreatic diversion with duodenal switch (T. Stoyanov, Pedro Cascales-Sanchez, Antonio Prat- Calero, Agustina Martinez-Moreno, Emilio Garcia-Blazquez, Servando Usero-Rebollo, P. Tonchev, K. Ivanov, D. Stoikov)
5. Laparoscopic тreatment for gastroesophageal reflux disease (GERD) and diaphragmatic hernias. Possibilities for Treatment and problems (G. Kotashev, V. Mutafchijski, K. Vasilev, P. Ivanov, G. Grigorov, M. Dontcheva, V. Kyosev, G. Popivanov, V.Hristova, H. Petrov)
6. Total pelvic exenteration with preservation of urogenital diaphragm and levator musculature – 4 years experience (S. Nikolov, N. Damyanov, I. Saltirov, R. Penkov, I. Iliev, G. Georgiev)
7. Laparoscopically assisted vaginal hysterectomy versus vaginal hysterectomy for uterine leiomyomas (S. Kovachev, A. Ganovska, M. Stoyanova, T. Stankova)
8. Porocarcinoma. Surgical treatment оf rare tumors аt maxillofacial area (V. Vassilev, E. Daleva, L. Efremova, H. Lozanov)
9. Percutaneous Nefrolitotripsiy (PCNL) – 30 Years since the Introduction in Bulgaria (I.Saltirov, K. Petkova)