Faculty

My name is Tanan Bejrananda, and I am an Associate Professor of Urology in the Division of Urology, Department of Surgery at the Faculty of Medicine, Prince of Songkla University in Hat Yai, Thailand. My professional interests and academic career have centered on advancing robotic urologic surgery, urologic oncology, and minimally invasive surgical education. Over the past years, I have been deeply involved in expanding robotic surgical capabilities in southern Thailand, performing a wide range of complex procedures including robot-assisted radical prostatectomy, intracorporeal urinary diversion, pelvic lymph node dissection, partial nephrectomy, and reconstructive procedures. Through these efforts, I aim to bring high-quality, evidence-based, and technologically advanced care to patients in the region. I completed my medical degree and residency training in urology at Prince of Songkla University, where I later pursued a Ph.D. that strengthened my skills in clinical research methodology, epidemiology, and oncologic outcomes. The combination of surgical training and scientific research has shaped the way I approach clinical problems, motivating me to integrate innovation, data-driven decision-making, and continuous improvement into both my practice and academic work. My research focuses on improving cancer outcomes, developing predictive models, and enhancing the understanding of surgical quality metrics. I have authored and co-authored numerous publications in international journals, covering topics such as nomogram development for pentafecta prediction after robot-assisted radical prostatectomy, external validation of the CAPRA-S score in Thai patients, biochemical recurrence modeling, and comparative effectiveness of surgical approaches. I am also involved in multi-institutional collaborations and machine-learning-based predictive studies that aim to modernize cancer prognostication in urology. Additionally, I have contributed to health-economic evaluations of robotic surgery, recognizing the importance of cost-effectiveness in guiding healthcare policy in Thailand. As part of my academic service, I actively review manuscripts for many international journals including Medicine, European Urology Open Science, World Journal of Surgery, International Journal of Urology, Clinical Genitourinary Cancer, BMC Urology, and Cancer Investigation. I take pride in providing thorough, constructive, and methodologically sound feedback that supports authors and improves scientific rigor. Reviewing papers across oncology, surgical techniques, machine learning, and epidemiology has also enriched my own academic practice. Teaching and mentorship are also important components of my work. I regularly guide residents in robotic techniques, research methods, and clinical reasoning, and I have contributed numerous chapters to robotic surgery textbooks at the professorial level. These include detailed sections on robotic prostatectomy, cystectomy, intracorporeal urinary diversion, RPLND, vesicovaginal fistula repair, ureteral reconstruction, and neobladder formation. I have also been invited to speak at regional and international conferences such as UAA, ERUS, IEMU, and various robotic and endourology masterclasses. Beyond clinical and academic responsibilities, I participate in national healthcare initiatives, including prostate cancer disease-specific certification (PDSC) development and regional oncology care quality improvement projects. I am also leading research evaluating bladder dysfunction after pelvic radiation therapy in cervical cancer patients—an important but under-recognized issue in Thailand.