Kernrechtsfrage
Whether the claimant proved a relevant deterioration of health justifying a disability pension after the new application.
Extrahierter Entscheid
A further examination was required because a potential temporary entitlement based on the heart condition could not be excluded.
Extrahierte Begründung
The 2005 heart attack was a new development after the comparison date. The available records did not sufficiently clarify cardiac work capacity, and the lower court relied on reports that did not expressly address the heart disease.