Exhibit 99.1 MBNA MASTER CREDIT CARD TRUST II SERIES 1994-A KEY PERFORMANCE FACTORS January 31, 1998 Expected B Maturity 9/15/99 Blended Coupon 5.8336% Excess Protection Level 3 Month Average 4.88% January, 1998 4.72% December, 1997 5.08% November, 1997 4.85% Cash Yield 17.84% Investor Charge Offs 4.71% Base Rate 8.42% Over 35 Day Delinquency 4.85% Seller's Interest 16.09% Total Payment Rate 13.52% Total Principal Balance $ 34,907,536,752.65 Investor Participation Amount $ 760,000,000.00 Seller Participation Amount $ 5,616,202,234.16