Exhibit 99.34 MBNA MASTER CREDIT CARD TRUST II SERIES 1998-D KEY PERFORMANCE FACTORS March 31, 1999 Expected B Maturity 7/15/2003 Blended Coupon 5.7916% Excess Protection Level 3 Month Average 6.27% March, 1999 6.86% February, 1999 6.11% January, 1999 5.85% Cash Yield19.18% Investor Charge Offs 5.12% Base Rate 7.20% Over 35 Day Delinquency 4.94% Seller's Interest 6.34% Total Payment Rate14.77% Total Principal Balance$40,628,355,078.94 Investor Participation Amount$559,000,000.00 Seller Participation Amount$2,576,435,560.45