Office-Based Superior Laryngeal Nerve Block for Treatment of Neurogenic Cough
Trial Parameters
Brief Summary
The purpose of this study is to evaluate if office-based injection of a local anesthetic/steroid combination at the area of one superior laryngeal nerve can decrease cough frequency and alleviate symptoms of chronic cough in patients with neurogenic cough.
Eligibility Criteria
Inclusion Criteria: * Age 18 years or older * Ability of patients to speak and understand English * Ability for patients to consent for themselves * Cough for 8 weeks or greater, with suspected sensory neuropathic etiology of the cough. Inclusion based on history of preceding upper respiratory infection or other symptoms suggestive of irritable larynx such as cough in response to temperature changes, odors, scents/perfumes, tickle, irritation in the throat/paralaryngeal region, or talking. * Persistent cough despite treatment of ALL the major contributors of cough (items listed below would be done as part of a standard clinical workup for chronic cough and are not done specific to this study): * Reflux disease treatment with one of the following: failure of two months of PPIs OR negative pH study * Asthma: lack of response to at least one month of steroid inhaler/bronchodilator OR normal PFTs/negative methacholine challenge + negative CXR/CT * Upper airway cough syndrome/Allergic disea