The invention relates to an apparatus and method to assess the fluid level in lungs. An implantable medical device or external monitor is used to sense or monitor the patient's respiratory patterns to identify the presence of periodic breathing or Cheyne-Stokes Respiration (CSR) which is common in patients...http://www.google.com/patents/US7704211?utm_source=gb-gplus-sharePatent US7704211 - Method and apparatus for assessing fluid level in lungs
