IMPLANTABLE MEDICAL DEVICE WITH CONDITION DETECTING

摘要

The present invention relates to a method for detecting a condition of a heart of a patient using an implantable medical device, comprising the steps of: sensing acoustic signals indicative of heart sounds of the heart of the patient; extracting signals corresponding to a first heart sound (Sl) and a second heart sound (S2) from sensed signals; calculating an energy value corresponding to a signal corresponding to the first heart sound (Sl) and an energy value corresponding to the second heart sound (S2); calculating a relation between the energy value corresponding to the first heart sound and the energy value corresponding to the second heart sound for successive cardiac cycles; and using at least one relation to detect the condition or a change of the condition. Furthermore, the invention relates to a medical device for determining the posture of a patient and a computer readable medium comprising instructions for bringing a computer to perform the inventive method.