Ann Rheum Dis 1990 Research Article A seasonal pattern in the onset of polymyalgia rheumatica. M A Cimmino , R Caporali , C M Montecucco , S Rovida , E Baratelli , M Broggini + Author Affiliations Department of Rheumatology, Genoa University, Italy. Abstract The seasonal distribution in the onset of polymyalgia rheumatica (PMR) was determined in 58 patients with the disease and compared with that in 44 patients affected by rheumatoid arthritis of elderly onset (EORA). Thirty six (62%) cases of PMR developed during May to August; by contrast, only 14 (31%) cases of EORA developed in the same months, this latter disease failing to show any seasonal clustering. The monthly distribution of PMR correlated with outside temperature and hours of sunshine. These data suggest that PMR might be triggered by such factors as actinic damage of superficial vessels or infective agents with a seasonal cycle. Finally, the summer clustering of PMR may be helpful in the differential diagnosis from EORA.
Hmm! May to August isn't that prime tick sequesting time?
What a thought provoking piece of research shame they didn't consider other epidemiological possibilities. My own illness which was diagnosed as Poly Myalgia Rheumatica turned out to be Lyme Disease. In fact reading about Lyme Disease and knowing the many problems with the vascular system I have to question the Giant Cell Arteritis? But then hey perhaps that is just me adding two and two and making five, what would I know about medicine.
I am just glad that my GP finally realised after 4 years of illness with Fibromyalgia, ME/CFS, arthritis and muscle weakness leading to a Poly Myalgia Rheumatica diagnosis that it was possibly Lyme Disease some months later a specialist confirmed her suspicions. I was treated on long term antibiotics in line with ILADS Guidelines and eventually recovered my health.
I wonder how many patients suffering with Poly Myalgia Rheumatica are properly assessed for Lyme disease especially with the testing being so unreliable.