Exhibit 99.31

MBNA MASTER CREDIT CARD TRUST II

SERIES 1997-M

KEY PERFORMANCE FACTORS
April 30, 1998



Expected B Maturity 10/15/02


Blended Coupon 5.8075%


Excess Protection Level
3 Month Average 5.53%
April, 1998 5.89%
March, 1998 5.96%
February, 1998 4.74%


Cash Yield 18.66%


Investor Charge Offs 4.96%


Base Rate 7.81%


Over 35 Day Delinquency 5.03%


Seller's Interest 14.63%


Total Payment Rate 14.61%


Total Principal Balance $35,947,972,379.88


Investor Participation Amount $750,000,000.00


Seller Participation Amount $5,259,577,861.39