Diagnosis and Prevalence (1975–2010) of Sudden Death due to Atlantoaxial Subluxation in Cervical Rheumatoid Arthritis: A Literature Review

Table 1

Literature summary.

Author/year	Country	Methods	Number of cases	Postmortem evaluation
Mikulowski et al., 1975	Sweden	Case postmortem with autopsy	10104 case RA with AAI, 11 sudden death (1969–1975)	All case compression medulla
Parish et al., 1990	Georgia	Case report	1 RA case with AAI sudden death	Compression medulla
Neva et al., 2001	Finland	Case study in one year in Finland	17 cases with AAI, 4 case RA with AAI sudden death	Compression medulla
Unuma et al., 2010	Japan	Case report	1 RA case with AAI sudden death	Compression medulla