Exhibit 99.1 MBNA MASTER CREDIT CARD TRUST II SERIES 1994-A KEY PERFORMANCE FACTORS October 31, 1998 Expected B Maturity 9/15/99 Blended Coupon 5.7025% Excess Protection Level 3 Month Average 5.48% October, 1998 5.87% September, 1998 4.28% August, 1998 6.29% Cash Yield 18.93% Investor Charge Offs 4.98% Base Rate 8.08% Over 35 Day Delinquency 5.16% Seller's Interest 8.67% Total Payment Rate 14.28% Total Principal Balance $ 39,561,435,127.71 Investor Participation Amount $ 760,000,000.00 Seller Participation Amount $ 3,431,640,609.22