Techniques are provided for detecting abnormal respiration within a patient based upon intracardiac electrogram (IEGM) signals or other electrical cardiac signals. Briefly, abnormal respiration is detected using a pattern recognition trained to discriminate normal and abnormal respiration based on morphological...http://www.google.de/patents/US7435221?utm_source=gb-gplus-sharePatent US7435221 - System and method for detecting abnormal respiration based on intracardiac electrogram signals using a pattern recognition device