Exhibit 99.23

MBNA MASTER CREDIT CARD TRUST II SERIES 1997-B

KEY PERFORMANCE FACTORS
August 31, 1999



Expected B Maturity 3/15/12


Blended Coupon 5.5023%



Excess Protection Level
3 Month Average 5.68%
August, 1999 5.93%
July, 1999 5.96%
June, 1999 5.15%


Cash Yield 18.20%


Investor Charge Offs 4.78%


Base Rate 7.50%


Over 30 Day Delinquency 4.81%


Seller's Interest 7.19%


Total Payment Rate 14.37%


Total Principal Balance $46,158,397,644.87


Investor Participation Amount $1,000,000,000.00


Seller Participation Amount $3,316,578,126.38