Exhibit 99.1 MBNA MASTER CREDIT CARD TRUST II SERIES 1994-A KEY PERFORMANCE FACTORS May 31, 1998 Expected B Maturity 9/15/99 Blended Coupon 5.8961% Excess Protection Level 3 Month Average 5.46% May, 1998 4.84% April, 1998 5.80% March, 1998 5.73% Cash Yield 17.95% Investor Charge Offs 5.01% Base Rate 8.09% Over 35 Day Delinquency 5.17% Seller's Interest 13.80% Total Payment Rate 13.68% Total Principal Balance $ 35,599,996,121.04 Investor Participation Amount $ 760,000,000.00 Seller Participation Amount $ 4,911,601,602.55