Atrial tachycardia is defined as a supraventricular tachycardia (SVT) that does not require the atrioventricular (AV) junction, accessory pathways, or ventricular tissue for its initiation and maintenance.
Established in 1993, Genting Hong Kong already owns Asia-based Star Cruises and is a major shareholder of Norwegian Cruise Line Holdings, which owns Norwegian Cruise Line, Regent Seven Seas Cruises and Oceania Cruises. It's part of the Genting Group, a global hospitality and leisure company.
Royal Caribbean owns Celebrity Cruises and Azamara Cruises. Carnival owns Princess Cruises, Holland America Line, Costa Cruises, and Cunard among others.he BEST of anything, including cruise lines, is the one that suits you best. I've been on a few. What I can tell you is that each cruise line (and in some cases even the ind â¦ ividual ships) have their own personality.