Crowned dens syndrome: multicenter retrospective case series

Crowned dens syndrome: multicenter retrospective case series - Crowned dens syndrome: multicenter retrospective case series

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000018368

Enrollment

Registered

2015-08-01

Start date

2015-07-15

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Crowned dens syndrome (CDS)

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Adult patients who had neck pain and in whom radiography revealed calcifications around the dens.

Exclusion criteria

Exclusion criteria: No diagnosis of CDS in the medical records.

Design outcomes

Primary

Measure	Time frame
Prevalence of the crowned dens syndrome (CDS); Proportion of the patients who were diagnosed with CDS within one day; and Clinical features of CDS	—

Secondary

Measure	Time frame
Time required for resolution; Causes of delayed diagnosis; Features of cases in which lumbar puncture was performed; Features of inpatient cases; and Features of misdiagnosed cases	—

Countries

Japan

Contacts

Public ContactHiroki Isono

Tsukuba University Hospital Mito Medical Center General internal medicine

isono-tuk@umin.ac.jp029-231-2371

Outcome results