Exhibit 99.1 MBNA MASTER CREDIT CARD TRUST II SERIES 1994-A KEY PERFORMANCE FACTORS March 31, 1998 Expected B Maturity 9/15/99 Blended Coupon 5.9560% Excess Protection Level 3 Month Average 5.02% March, 1998 5.73% February, 1998 4.61% January, 1998 4.72% Cash Yield 18.54% Investor Charge Offs 4.85% Base Rate 7.96% Over 35 Day Delinquency 5.06% Seller's Interest 11.41% Total Payment Rate 13.80% Total Principal Balance $ 33,909,306,783.29 Investor Participation Amount $ 760,000,000.00 Seller Participation Amount $ 3,867,972,264.80