Differential Diagnosis for Dizziness when Tilting Head Back
- Single most likely diagnosis
- Benign Paroxysmal Positional Vertigo (BPPV): This condition is characterized by brief, intense episodes of vertigo triggered by specific head movements, such as tilting the head back. The symptoms are due to the movement of otolith crystals in the inner ear.
- Other Likely diagnoses
- Orthostatic Hypotension: This condition involves a sudden drop in blood pressure when standing up or changing positions, which can cause dizziness. Tilting the head back may exacerbate the symptoms.
- Cervicogenic Dizziness: This type of dizziness is related to neck movement and position, which can affect blood flow and inner ear function.
- Vestibular Migraine: Some people with migraines may experience vertigo or dizziness, especially with certain head movements.
- Do Not Miss diagnoses
- Stroke or Transient Ischemic Attack (TIA): Although less likely, it's crucial to rule out a stroke or TIA, as these conditions can cause sudden dizziness and require immediate medical attention.
- Multiple Sclerosis: This autoimmune disease can cause a range of symptoms, including dizziness and vertigo, especially with certain head movements.
- Vertebral Artery Dissection: A tear in the vertebral artery can cause dizziness, vertigo, and other symptoms, and requires prompt medical attention.
- Rare diagnoses
- Meniere's Disease: A disorder of the inner ear that can cause vertigo, tinnitus, and hearing loss, although it's less likely to be triggered specifically by tilting the head back.
- Chiari Malformation: A rare condition where the cerebellum extends into the spinal canal, which can cause dizziness and vertigo, especially with certain head movements.
- Superior Canal Dehiscence: A rare condition where there's an abnormal opening in the bone overlying the superior canal, which can cause vertigo and dizziness with certain head movements or sounds.