Goh et al developed a simple staging system for a patient with interstitial lung disease secondary to systemic sclerosis. The authors are from the Royal Brompton Hospital, King's College Hospital, Hammersmith Hospital and the Royal Free Hospital in London.
Patient selection: interstitial lung disease (ILD) and systemic sclerosis
Parameters:
(1) extent of disease in high resolution CT of the lungs (HRCT) in percent
(2) FVC as percent of predicted
HRCT Extent
FVC
Stage of Disease
<= 10%
NA
limited
10.1 to 30%
>= 70%
limited
10.1 to 30%
< 70%
extensive
> 30%
NA
extensive
Stage of Disease
5 Year Survival
limited
75%
extensive
30%
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