What is the morbidity and mortality associated with beta-2-microglobulin (beta-2m) amyloidosis?

Updated: Nov 14, 2019
  • Author: Anita Basu, MD, FACP; Chief Editor: Vecihi Batuman, MD, FASN  more...
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Patients receiving long-term dialysis can experience disabling musculoskeletal complications. [10] For individuals who are able to undergo renal transplantation, progression of the disease can be halted, but regression is unlikely. Rarely, submucosal bowel deposits have resulted in massive GI bleeding.

Case reports also exist of severe pulmonary hypertension and heart failure due to beta-2m amyloid deposits in the interstitium and/or vasculature of the cardiovascular system.

Studies in Japan have suggested that most patients with carpal tunnel syndrome associated with beta-2m amyloid deposits have undergone HD for 10 years or more. In one study, up to 50% of patients developed this complication after 20 years, and the percentage was even higher after 25 years. [11]

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