Our Founders

It all began more than a decade ago, when Eberhard first travelled to Myanmar to treat ENT (ear, nose, and throat) patients and teach ear surgery. Over the years, these annual visits not only provided medical care and training but also fostered lasting friendships.

In 2021, the military coup in Myanmar brought these trips to an abrupt halt. Determined to continue supporting colleagues, Eberhard and Marlene founded Carematters. What began as online meetings to discuss ENT cases soon grew into an international initiative—within six months, physicians from other conflict-affected countries had also joined the discussions.

Dr. med. Eberhard Biesinger

Eberhard Besieger is a pioneering ENT surgeon with a special focus on middle ear surgery and a strong research background in tinnitus. In 1998, he was among the very first worldwide to implant the active middle ear device Vibrant Soundbridge—then manufactured by Symphonix and now by Med-EL®—marking a significant milestone in hearing restoration technology.

As an attending surgeon in the ENT department at the University Hospital of Tübingen, he worked closely with Professors Plester and Zenner for over 11 years, contributing to groundbreaking advances in otologic surgery and fostering innovation in the field.

Dr. med. Marlene M. Speth, M.A.

Marlene trained in Switzerland and is currently working in rhinology at Charing Cross Hospital in London/Imperial College.

Her main interests are rhinology and facial plastics. In recent years, she has collaborated closely with a research group in the United States and Austria, focusing on rhinology and, in particular, the quality of life of patients with chronic rhinosinusitis.

Marlene serves on the Executive Committee of the European Rhinologic Society (ERS), chairs the ERS Educational Committee, is a member of the ERS Scientific Committee, and is part of the rhinology team of the Young Confederation of European Otorhinolaryngology–Head and Neck Surgery (Y-CEORL).

Our Team

We are very happy to also have Martina and Sophia in our team.

Dr. med. Sophia M. Häussler

Sophia is a consultant and Associate Professor who previously worked at the University Hospital Hamburg-Eppendorf, Germany, specializing in otology and pediatric ENT. She has published numerous studies in internationally respected journals in these fields.

She studied medicine in Munich and completed her residency at the Charité – Universitätsmedizin Berlin. Passionate about education, she has been actively involved in lecturing medical students and coordinating academic programs.

From 2024 to 2025, she undertook a fellowship in pediatric ENT in Auckland, New Zealand. She has since relocated to Perth, Australia, where she is currently pursuing a Skull Base and Otology fellowship at Sir Charles Gairdner Hospital, University of Western Australia.

Dr. med. Martina Rieffert