Fellow – program de supraspecializare in chirurgie estetica si cosmetica; program de supraspecializare in chirurgia paraliziei de nerv facial – Clinica de Chirurgie Plastica ”Dr. Fausto Viterbo”, sub indrumarea renumitului Prof. Dr. Fausto Viterbo - Botucatu, Sao Paulo, Brazilia (2006 si 2013).
Primul chirurg plastician roman caruia i s-au publicat articole in revista Aesthetic Plastic Surgery (jurnalul oficial al Societatii Internationale de Chirurgie Estetica si Plastica ISAPS):
- „Advantages and outcomes in subfascial breast augmentation: a two- year review of experience“
- „Injectable calcium hydroxylapatite for correction of nasal bridge deformities“
- „A case of postmastectomy defect reconstructed using a laterothoracic bilaterally pedicled V – Y advancement flap“
- „A case of postraumatic thigh defect reconstructed using tissue expansion by elastic tube”
- „Use of bilaterally pedicled V-Y advancement flap for reconstruction of the nose”
- „Prevention of Thromboembolism by Saline Solution Perfusion“
Expert in augmentarea mamara (marirea sanilor) utilizand tehnica subfasciala, tehnica muscle splitting biplane si tehnica proprie de lifting intern.
Experienta si tehnicile utilizate de Dr. Horia Siclovan in augmentarea mamara (marirea sanilor) sunt recunoscute pe plan international, fapt dovedit de publicarea unui articol de specialitate in European Journal of Plastic Surgery:
- „Versatility of muscle splitting bipane technique associated with internal mastopexy in breast hypoplasia, ptosis and asymmetry“
Recent, noua tehnica proprie de lifting intern al sanului combinata cu augmentarea mamara a fost descrisa intr-un articol stiintific aprobat spre publicare in Aesthetic Plastic Surgery, jurnalul oficial al ISAPS (International Society of Aesthetic Plastic Surgery)
- „Modified internal mastopexy technique in muscle splitting biplane breast augmentation”
Premiul pentru chirurgul plastician din Romania cu cea mai buna activitate stiintifica in domeniul chirurgiei estetice (2019, 2018, 2016, 2015).
Membru al ISAPS (International Society of Aesthetic Plastic Surgery), ASPS (American Society of Plastic Surgeons), SRCE (Societatea Romana de Chirurgie Estetica) si al ACPR (Asociatia Chirurgilor Plasticieni din Romania).
Participari si lucrari prezentate la numeroase congrese internationale, incluzand conferinte la Miami (SUA), Rio de Janeiro (Brazilia), Buenos Aires (Argentina), Santiago de Chile (Chile), Geneva (Elvetia), Monaco (Monte Carlo), Paris (Franta), Salta (Argentina), Saint Petersburg (Rusia), Kiev (Ucraina), Kyoto (Japonia), Hamburg (Germania), München (Germania), Praga (Cehia), Dubai (Emiratele Arabe Unite), Budapesta (Ungaria), Riyadh (Arabia Saudita), Botucatu (Brazilia), Szeged (Ungaria), Doha (Qatar), Cairo (Egipt), Belgrad (Serbia).