Dr. Hassel is an Associate Professor of Equine Emergency Surgery & Critical Care and helped establish the 24/7 Equine Critical Care service at CSU in 2004. She has been a specialist in the area of equine colic since completion of her surgical residency in 1997 and has furthered her background in critical care medicine for the horse by obtaining board certification by the American College of Veterinary Emergency & Critical Care in 2007. Her research interests are focused on treatment of the critically ill equine patient, with particular interests in colic, the equine gastrointestinal microbiome and endotoxemia.

Doctor Thijs van Loon graduated in 2000 from the Utrecht Faculty of Veterinary Medicine. After graduating, he worked for 3 years in a mixed private practice. After the first year with a lot of general practice, he started to focus on equine anesthesia and internal medicine. In early 2004 he returned to the Faculty of Veterinary Medicine in Utrecht and received a training position in veterinary anesthesiology, pain management and Intensive Care. Simultaneously with the training programme, Thijs started a doctoral research into local pain relief techniques in horses (including epidural anesthesia) and into the objective measurement of pain manifestations. 

In 2012, Thijs passed his exams for the European register of specialists and became a diplomate of the European College of Veterinary Anesthesiologists and Analgesia (ECVAA). In the same year he completed his PhD and defended his dissertation in the Academy Building in Utrecht entitled “Analgesia in the Horse, various approaches for assessment and treatment of pain and nociception in equines”. 

Between 2012 and 2021 Thijs continued to work at the Department of Anesthesiology and Intensive Care of the University Clinic for Horses in Utrecht. He has guided countless students, interns and specialists in training. In addition to his work in the clinic, he continued research into making acute and chronic pain measurable in horses and donkeys. This resulted, among other things, in the development of the EPWA (Equine Pain and Welfare App) app. This app, with which pain signals in horses and donkeys can be objectively measured, was developed with the cooperation of colleagues and research students, supported by the Friends of Veterinary Medicine Foundation and the Paardenkamp Foundation. A version that can be used for working horses and donkeys in developing countries is being developed, with support from Brooke Hospital for Animals. 

Thijs has been working at SMDC since in September 2021. Both in Heesch and in the international clinics of Altano, he uses his knowledge and experience to supervise (sometimes complex) anesthesia and sedation procedures and to contribute to the further development of pain relief for various disorders. Thijs also provides refresher courses in anesthesia and pain relief for Altano Academy. Since the beginning of 2023, Thijs combines his work for SMDC and Altano with working at the department of clinical sciences at Utrecht University in the Netherlands.