A new way to treat NAR

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Chordate Medical has developed a treatment method called “Kinetic Oscillation Stimulation” (KOS).
This method represents a new way to treat Non-allergic rhinitis that does not require the use of surgery, anesthesia or pharmaceuticals.
The KOS method has been developed to treat patients with NAR. The method consists of inserting a balloon catheter into each nostril for ten minutes at a time. The balloon catheter is inflated with air to a pre-set pressure and is then set to vibrate at a specific frequency using a computer-controlled system.
Treatment with the Chordate system has been demonstrated to be safe and well tolerated.¹

A single treatment last during a short period of time and can be administered by a doctor or nurse in an out-patient clinic. Although symptoms often improve with just a single treatment, studies have shown the treatment effect is increased if the patient receives two consecutive treatments 4 weeks apart.

The latest clinical study for treatment of non-allergic rhinitis showed a 55 % improvement in nasal congestion symptom score after 8 weeks for patients who received two treatments. Six month follow-up still showed significant improvement. The positive effects of KOS can be maintained for several months. Significant improvements in TVRSS (Total Vasomotor Rhinitis Symptom Score) and SNOT 22 were found.²
Rhinitis symptoms impact patients’ daily functioning and quality of life. The performance endpoints, and associated variables and measurements, are consequently subject self-reported. Monitoring of patients showed that many had residual improvement to their symptoms more than twelve months after treatment.³


¹Markus Jerling MD, Iwona Cygankiewicz, Nabil Al-Tawil, Borje Darpo, Anders Ljungström, Wojciech Zareba. Effects of intranasal kinetic oscillation stimulation on heart rate Variability. Ann Noninvasive Electrocardiol. 2017;e12474.

²Ehnhage, A, Sahlstrand Johnsson P, et al Treatment of idiopathic rhinitis with kinetic oscillations – a multi- centre randomized controlled study. ACTA OTO-LARYNGOLOGICA, 2016.

³Chordate, data on file