Other symptoms that may indicate OSA may be secondary to a more sinister condition such as a cancerous tumour, include:

• Unilateral nasal bleeding 
• Change in voice character 
• Severe nasal obstruction 
• Unexplained hoarseness 
• Dysphagia 
• Rapid onset of OSA symptoms in the absence of marked weight gain

Should a patient report any of these symptoms, with or without the typical symptoms of OSAHS, they should be referred for urgent ear, nose and throat (ENT) assessment.