Theni. Major heart disorders which are cured in Theni include Arrhythmia, Syncope (temporary unconsciousness), and Vascular diseases. Cardiology hospital like Manis Hospital have gained huge consideration because of their contribution in medical field. Theni has become one of the ultimate destination for best cardiology hospitals in the country. Reviews given by patients for treatment in these hospitals in Theni are satisfying. For treatment of heart related diseases, specific hospitals are available in Theni.