Kernrechtsfrage
Whether the conditions for revision of the disability pension were met under Art. 17 LPGA.
Extrahierter Entscheid
No material deterioration of the insured person's health or work capacity was shown between the two relevant decisions.
Extrahierte Begründung
The expert opinion and the consistent medical evidence showed only temporary or non-impacting changes; age, medication, consultations, and hospital stays did not prove a lasting worsening.