The top aide to Crown Prince Naruhito said Friday there are no plans for Crown Prince Naruhito and his wife, Crown Princess Masako, to take more trips abroad to help her recuperate.

"I have absolutely nothing in mind, nor are there any plans" for such a trip, Grand Master Issei Nomura said at a news conference at the Imperial Household Agency. "I don't think their medical team is thinking about it either."

The Crown Prince, the Crown Princess and their daughter, Princess Aiko, visited the Netherlands last month on a private two-week trip aimed at helping the 42-year-old Crown Princess recover from a stress-related illness. It was the first time a member of the Imperial family had gone abroad to recuperate.

Nomura also summed up the views of the medical team treating the Crown Princess by describing it as "useful for her future treatment."

The team includes her chief physician, Keio University Health Center Professor Yutaka Ono, who accompanied her on the trip. Nomura said the exchanges with the Dutch royal family were "experiences conducive to her confidence."

The medical team said it will decide on the Crown Princess' future activities "on a case-by-case basis, taking her condition into account."

The Harvard-educated former diplomat has been suffering from a psychological disorder that is frequently blamed -- in part -- on pressure to produce a male heir.

She has not been able to carry out most of her official duties since late 2003.