The payments to Dr. Collins and the research center appear in an unusual set of records.
Regular payment of interest and the return of principal at maturity do not appear in jeopardy, analysts say.
Again, those payments may not appear on the standard summary statements, Mr. Rhine said.
The payment did not appear to suggest that Mr. Rostenkowski has negotiated a settlement to his legal problems.
The payments appeared to settle the dispute over the part of the contract that called for Cayton to receive a third of the purse.
The payments do not appear to violate campaign spending rules; although corporations are, in general, limited to donating $5,000 a year, spouses have more flexibility.
That payment appears to reverse a trend in which Premier had given out increasing amounts of money to its owner hospitals each year.
The ministry had maintained that those payments appeared to have stopped on March 31, 1990, the end of the fiscal year.
Union officials said the payments appeared to comply with regulations.
The complaint said that the payments appeared to be "a way to convert campaign contributions into personal funds for Mr. Wright."