Exhibit 99.1 MBNA MASTER CREDIT CARD TRUST II SERIES 1994-A KEY PERFORMANCE FACTORS August 31, 1998 Expected B Maturity 9/15/99 Blended Coupon 5.8948% Excess Protection Level 3 Month Average 5.36% August, 1998 6.29% July, 1998 5.12% June, 1998 4.66% Cash Yield 19.08% Investor Charge Offs 5.09% Base Rate 7.70% Over 35 Day Delinquency 5.00% Seller's Interest 11.64% Total Payment Rate 14.21% Total Principal Balance $ 37,775,682,964.86 Investor Participation Amount $ 760,000,000.00 Seller Participation Amount $ 4,395,888,446.37