RT Journal Article SR Electronic T1 Clinical manifestations of hyperuricemia and gout JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP S5 OP S8 VO 75 IS 7 suppl 5 A1 Mandell, Brian F. YR 2008 UL http://www.ccjm.org/content/75/7_suppl_5/S5.abstract AB Biologically significant hyperuricemia occurs when serum urate levels exceed urate solubility, ie, at approximately 6.8 mg/dL. At serum urate levels above this threshold, manifestations of chronic crystal deposition, including gouty arthritis, may occur, although asymptomatic hyperuricemia often persists for many years without progression. Intercritical asymptomatic periods follow the resolution of acute gout flares, but crystals remain in the joint during these intervals and further deposition may continue silently. Ultimately this may lead to persistent attacks, chronic pain, and, in some patients, joint damage.