Interventions for Benign Paroxysmal Positional Vertigo (BPPV)
- Three different treatment approaches have been developed on the basis of pathophysiology of the BPPV.
- The techniques include the canalith repositioning manoeuvre, Liberatory (semont) manoeuvre, and Brandt–Daroff exercises.
Canalith Repositioning Maneuver (CRM)
- Also known as Epley manoeuvre.
- Based on the canalithiasis theory of free-floating otoconia in the semicircular canal.
- The patient's head is moved into different positions in a sequence that will move the otoconia out of the involved semicircular canal and into the vestibule.
- Once the otoconia are in the vestibule, the sign and symptoms should resolve.
- The positions used in the treatment of posterior and anterior semicircular canal canalithiasis can be the same.
- The procedure of CRM:
- The patient's head is first rotated 45° toward the involved side.
- The patient is then moved into the Dix-hallpike position with the affected left ear toward the ground.
- Next, the head is rotated 90° to the right and maintain the 30° extension during this step. The head should now be positioned 45° to the right.
- The patient is rolled onto the right shoulder and slowly brought up to the sitting position, head still rotated at 45° to the right.
Between each step, the therapist should wait for 1 to 2 minutes or until vertigo and nystagmus has stopped to ensure otoconia flow through the canal.
Liberatory (Semont) Maneuver
- Treatment for posterior semicircular canal BPPV based on cupulolithiasis theory.
- It involves rapidly moving the patient through positions designed to dislodge the otoconia from the cupula.
- Liberatory Maneuver or right posterior SCC BPPV:
- The head is rotated 45° to the left side.
- With assistance, the patient is then moved from setting to the right sideline and stays in this position for 1 minute.
- The patient is then rapidly moved 180°, from right side-lying to left side-lying. That should be in the original starting position, left rotated (nose down in the final position).
- After one minute in this position, the patient returned to sitting.
Brandt–Daroff Exercises
- Exercises are designed to habituate the CNS to the provoking position.
- They may also act to dislodge otoconia from the cupula or by causing otoconia to move out of the canal.
- Exercises for posterior SCC BPPV:
- The patient starts in a sitting position and turns the head 45° to one side (left) then quickly lies down on the opposite shoulder (right). The patient should be instructed to remain in this position for 30 seconds or until the vertigo stops.
- The patient then slowly returns to the starting position, maintaining the head rotation (left) until sitting upright.
- The patient turns the head to the opposite direction (right) and nice down on the other shoulder (left), absorbing the similar 30 second time guidelines.
- The exercise should be done 10 to 20 times, three times per day until the patient is without vertigo for two consecutive days.
Goals of BPPV Interventions:
- The otoconia will be returned into the vestibule.
- The patient will demonstrate reduced vertigo associated with head motion.
- The patient will demonstrate improved balance.
- The patient will demonstrate independence in a daily activity involving head motion.
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