Elevated nitric oxide and carbon monoxide concentration in nasal-paranasal sinus air as a diagnostic tool of migraine: a case – control study

Author:

Bandara S. M. R.,Samita S.,Kiridana A. M.,Herath H. M. M. T. B.

Abstract

Abstract Background A recent study showed that 60–s paranasal air suction results in an immediate pain relief in acute migraine. This is the study to assess the Nitric Oxide (NO) and Carbon Monoxide (CO) concentration in nasal-paranasal sinus air of migraine patients and to compare it with healthy controls. Methodology The NO and CO levels of air sucked out from nasal-paranasal sinuses of 20 migraine adolescent and young adults among school students, aged 16 –19 years, and 22 healthy similar aged school students as controls were measured as key responses using a portable NO and a portable CO analyzer. Results Patients had comparatively high values compared to the controls for paranasal NO (both left and right sides), paranasal CO (both left and right sides), Fraction Exhaled NO (FeNO) and Fraction Exhaled CO (FeCO). Patients had median paranasal NO contents of 132.5 ppb and 154 ppb on left and right sides respectively compared to 36 ppb and 34.5 ppb corresponding values in controls (P <  0.0001). Similar pattern was observed with paranasal CO (P <  0.0001). FeNO and FeCO content were also higher in patients (P <  0.0001). Receiver characteristic operating curves of all gas measurements showed that they all could classify patients and controls effectively and NO was the most effective followed by paranasal CO. After air suction, the mean pain scores of general headache and tenderness dropped by a very large margin in migraine patients (P <  0.0001). Conclusions Suctioned out high nasal-paranasal sinus NO and CO levels can be used to distinguish migraine patients from healthy subjects. In fact, suctioned out paranasal NO measurements of both sides with a cutoff point of 50 ppb provided a perfect classification of patients and controls. Increased sinus NO and CO during acute episode of migraine is an observation we had and we agree that further studies are needed to conclude that NO and CO can be a causative molecule for migraine headache. Trail registration Clinical Trial Government Identification Number – 1548/2016. Ethical Clearance Granted Institute – Medical Research Institute, Colombo, Sri Lanka (No 38/2016). Sri Lanka Clinical Trial Registration number: SLCTR/ 2017/018 (29/06/2017). Approval Granting Organization to use the device in the clinical trial– National Medicines Regulatory Authority Sri Lanka (16/06/2018), The device won award at Geneva international inventers exhibition in 2016 and President award in 2018 in Sri Lanka. It is a patented device in Sri Lanka and patent number was SLKP/1/18295. All methods were carried out in accordance with CONSORT 2010 guidelines.

Publisher

Springer Science and Business Media LLC

Subject

Neurology (clinical),General Medicine

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