Exhibit 99.38

MBNA MASTER CREDIT CARD TRUST II

SERIES 1999-B

KEY PERFORMANCE FACTORS
May 31, 2000



Expected B Maturity 3/16/09


Blended Coupon 5.9788%


Excess Protection Level
3 Month Average 5.77%
May, 2000 5.83%
April, 2000 5.46%
March, 2000 6.01%


Cash Yield19.29%


Investor Charge Offs 4.66%


Base Rate 8.80%


Over 30 Day Delinquency 4.70%


Seller's Interest 9.50%


Total Payment Rate14.38%


Total Principal Balance$52,496,626,963.52


Investor Participation Amount$750,000,000.00


Seller Participation Amount$4,987,826,445.03