Exhibit 99.1 MBNA MASTER CREDIT CARD TRUST II SERIES 1994-A KEY PERFORMANCE FACTORS February 28, 1999 Expected B Maturity 9/15/99 Blended Coupon 5.1486% Excess Protection Level 3 Month Average 5.83% February, 1999 6.07% January, 1999 5.64% December, 1998 5.78% Cash Yield 17.82% Investor Charge Offs 5.13% Base Rate 6.63% Over 35 Day Delinquency 5.38% Seller's Interest 9.80% Total Payment Rate 13.67% Total Principal Balance $ 40,800,539,305.60 Investor Participation Amount $ 760,000,000.00 Seller Participation Amount $ 3,998,619,787.11