Related Experiment Video
Updated: Jul 20, 2026
03:08
Harvest of Vestibular End-Organs under Physiologic Conditions during Labyrinthectomy
Published on: November 29, 2024
Superior semicircular canal dehiscence presenting as postpartum vertigo
Karen F Watters1, John J Rosowski, Todd Sauter
1Eaton-Peabody Laboratory, Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, Boston, MA, USA.
Summary
Superior semicircular canal dehiscence (SSCD) can cause postpartum vertigo. Surgical repair of SSCD effectively resolves vestibular symptoms and improves hearing, offering a stable treatment option for affected women.
Area of Science:
- Neuroscience
- Otolaryngology
- Audiology
Background:
- Superior semicircular canal dehiscence (SSCD) is a rare condition affecting the inner ear.
- Postpartum vertigo can have various causes, and SSCD is a newly identified contributor.
Observation:
- Two women presented with acute postpartum vertigo and confirmed SSCD via CT scans.
- Clinical features included auditory symptoms like aural fullness, autophony, and sound/pressure sensitivity.
- Diagnostic tests like VEMP and LDV were consistent with SSCD in both cases.
Findings:
- One patient with a 1-mm SSCD is managed conservatively; the other with a 4-mm SSCD underwent surgical repair (superior canal plugging).
- The surgical repair resulted in resolution of vestibular symptoms and improved hearing.
- Meta-analysis of 43 patients supports surgical intervention for SSCD.
Implications:
- SSCD should be considered in the differential diagnosis of acute postpartum vertigo or disequilibrium.
- SSCD plugging is an effective surgical treatment, providing symptom resolution and hearing improvement.
- This study highlights the importance of neurotologic evaluation in postpartum women with vertigo.
Related Concept Videos
01:15Equilibrium and Balance
The inner ear assumes dual functionalities of auditory perception and equilibrium maintenance. The vestibule is the organ responsible for balance. This organ contains mechanoreceptors, specifically hair cells, endowed with stereocilia, which aid in deciphering information regarding the position and motion of our heads. Two intrinsic components, the utricle and saccule, help perceive head position, while the semicircular canals track head movement. Neurological messages initiated in the...
01:29The Vestibular System
The vestibular system is a set of inner ear structures that provide a sense of balance and spatial orientation. This system is comprised of structures within the labyrinth of the inner ear, including the cochlea and two otolith organs—the utricle and saccule. The labyrinth also contains three semicircular canals—superior, posterior, and horizontal—that are oriented on different planes.
01:16Anatomy of the Ear
Auditory sensation, commonly called hearing, involves the transformation of sonic waves into neural impulses facilitated by the structures of the auditory organ. The prominent, flesh-like structure on the side of the head, called the auricle, directs sound waves towards the auditory canal. The auricle is often mislabeled as the pinna, a term more aligned with mobile structures like a feline's external ear. The auditory canal penetrates the cranium via the external auditory meatus of the...
01:29Herniated Intervertebral Disc l: Introduction
Intervertebral disc herniation refers to the displacement of the nucleus pulposus (the gel-like inner core of the disc) through a tear or weakened area in the annulus fibrosus (the outer fibrous ring). The displaced disc material extends beyond the normal boundaries of the disc space and may compress or irritate nearby spinal nerve roots or, less commonly, the spinal cord.Etiology and Risk FactorsHerniation commonly results from degeneration, in which aging reduces disc hydration and...
01:27Mitral Valve Prolapse I: Introduction
IntroductionThe mitral valve, one of the heart's four valves, regulates blood flow. These valves have flaps that open and close to direct blood properly through the heart and body. During each heartbeat, the flaps open for blood to pass through and seal shut to prevent backflow. Specifically, the mitral valve opens to allow blood flow from the heart's upper left chamber to the lower left chamber. It then closes securely as the lower left chamber contracts to pump blood to the body, preventing...