Exhibit 99.52 MBNA MASTER CREDIT CARD TRUST II SERIES 2001-A KEY PERFORMANCE FACTORS April 30, 2001 Expected B Maturity 02/15/2006 Blended Coupon 5.2550% Excess Protection Level 3 Month Average April, 2001 7.53% March, 2001 3.68% February, 2001 N/A Cash Yield19.61% Investor Charge Offs 4.98% Base Rate 7.11% Over 30 Day Delinquency 4.89% Seller's Interest 9.33% Total Payment Rate13.70% Total Principal Balance$58,171,313,434.78 Investor Participation Amount$1,250,000,000.00 Seller Participation Amount$5,425,622,873.29