(Wall Street Journal) — Should you finance your plastic surgery with plastic? Credit-card issuers are stepping up their marketing of health-care cards and lines of credit that help borrowers finance costly elective medical procedures. The cards, which typically boast initial interest rates of 0%, are targeted to clients of plastic surgeons, dentists and even veterinarians. Though they help some people pay for important procedures, the cards come with a number of drawbacks that may not be apparent at sign-up, including rates that can quickly spike. Some big firms are ramping up their offerings. Citigroup Inc. offers the Citi Health Card, while J.P. Morgan Chase & Co. pitches ChaseHealthAdvance, a line of credit aimed at helping customers finance elective health procedures such as corrective eye surgery. Even General Electric Co.’s GE Money unit offers a card, called CareCredit.