2014
Kelahmetoglu, O. “Creating Ischemia in an Experimental Perforator Flap Model: Challenges.” 6th National Congress of the Reconstructive Microsurgery Association, Antalya, April 24-27, 2014
2015
Kelahmetoglu O. “Personal Experiences in Breast Reduction.” Aesthetic and Reconstructive Breast Surgery, Samsun, May 15-16, 2015
2016
Kelahmetoglu O. “Theoretical and Practical Instructor” 26th Basic Microsurgery Course, Istanbul, February 23-27, 2016.
2016
Kelahmetoglu O. “Session Chair” Lymphedema Diagnosis and Treatment Symposium, Istanbul, April 2, 2016.
2016
Kelahmetoglu O. “Simple Concept To Cover Pressure Sores: Wound Edge Based Propeller Perforator Flap.” 13th EFSM Congress (European Federation of Societies for Microsurgery), Antalya, April 21-24, 2016.
2016
Kelahmetoglu O. “Theoretical and Practical Instructor” 27th Basic Microsurgery Course, Istanbul, October 04-08, 2016.
2017
Kelahmetoglu O. “Simple Concept To Cover Pressure Sores: Wound Edge Based Propeller Perforator Flap” WSRM 2017 (9th Congress of World Society for Reconstructive Microsurgery), Seoul / South Korea, June 14-17, 2017
2018
Kelahmetoglu O. “Use of the Combination of Inferior Pedicle and Würinger Horizontal Septum in Women with Breast Hypertrophy to Increase the Viability of the Nipple-Areola Complex (NAC).” National Congress of the Aesthetic Plastic Surgery Association, Istanbul. January 3-14, 2018
2018
Kelahmetoglu O. “Autologous Breast Reconstruction” and “Orthoplastic Surgery” 4th Congress of APFSRM (Asia Pacific Federation of Societies For Reconstructive Microsurgery). Antalya, May 09-13, 2018
2018
Kelahmetoglu O. “Reconstruction of Pressure Sores” 13th National Wound Congress, Antalya / Turkey, December 2018
2019
Kelahmetoglu O. “Long Bone Reconstruction with Vascularised Fibular Flap” 18th Euroasian Congress of Surgeons. Baku / Azerbaijan. September 2019
2019
Kelahmetoglu O. “Surgical Treatment of Hidradenitis Suppurativa in Light of Current Guidelines” Inflammatory Diseases Chair, TRNC, December 2019
2020
Kelahmetoglu O. “Dermatology-Surgery Collaboration in the Treatment of Hidradenitis Suppurativa” Online Meeting. October 2020
2020
Kelahmetoglu O. “Perforator Selection for DIEP Flap” 42nd National Congress of the Turkish Plastic Surgery Association, October 2020