The princess had earlier been admitted to King Chulalongkorn Memorial Hospital on Nov 21 after complaining of abnormally rapid heartbeat, reports Bangkok Post.
HRH Princess Sirindhorn underwent a radiofrequency ablation on Nov 22. She was discharged and returned to Sa Pathum Palace on Dec 4, to rest.
The medical team providing treatment for the Princess reported that she had since developed a new type of irregular heartbeat, but the symptoms would be temporary and HRH Princess Sirindhorn would soon recover by herself.
The Princess has been advised to suspend her royal engagements for a period, pending a full recovery.
Meanwhile the Phuket office of the Public Relations Department (PR Phuket) confirmed during the weekend (Dec 24-25) that His Royal Highness Prince Dipangkorn and Her Royal Highness Princess Sirivannavari will be in Phuket on Dec 28.
HRH Prince Dipangkorn will be attending an event at Wat Chaiyathararam temple in Chalong, commonly known as Wat Chalong.
Her Royal HighnessPrincess Sirivannavari will officiate the foundation stone laying ceremony for a new ‘Thai Marine Life Museum’ at Cape Panwa in honour of His Majesty the King.