The present invention relates to a method for diagnosing a condition of a patient, comprising a plurality of sensors for detecting data characterizing a state of a patients current circulatory system, an input unit for inputting patient-specific data, a data detection (RAP), mean arterial pressure (MAP) and cardiac output (CO) from data characterizing the state of the patients current circulatory system, wherein the data detection and evaluation device comprises: From the right atrial pressure, the mean arterial pressure, and the cardiac output, a linear combination of a predetermined coefficient and a coefficient dependent on the individual-specific data makes an average circulatory filling pressure ( Determining the cardiac efficiency (Eh) from the mean circulation full pressure (Pms) and the right atrial pressure (RAP), and comparing the currently determined average circulation full pressure (Pms) and And a current cardiac efficiency (Eh) as a current state on the display device in a coordinate system expanded by the cardiac efficiency and the average body circulation filling pressure, the state of the circulatory system of the patient A monitoring device for monitoring pressure values (Pps, char) characterizing pressure assistance under positive pressure breathing, wherein the data detection and evaluation device comprises a pressure compensated average systemic circulation Charging pressure (PmsP) And pressure-corrected cardiac efficiency (EhP), Using the difference from the right atrial pressure (RAP) and the pressure value (Pps, char) characterizing the pressure support instead of the right atrial pressure (RAP) in a relational expression for determining them , And the pressure-corrected average circulation filling pressure (PmsP) And the pressure-corrected cardiac efficiency (EhP) As the current state on the display device in the coordinate system.本発明は、患者の現在の循環系の状態を特徴付けるデータを検出する複数のセンサと、患者の個人特有のデータを入力する入力ユニットと、前記複数のセンサおよび前記入力ユニットに接続されたデータ検出及び評価装置とを含み、前記データ検出及
