A medical monitoring system, the system comprising: - a plurality of ECG electrodes which are provided to be positioned on a patient such that the ECG electrodes define a predefined arrangement, wherein the plurality of ECG electrodes are adapted to collect ECG data, wherein the ECG data are ST elevation values; - a device adapted to simultaneously display said ST elevation values and a number of multiaxis diagrams (6, 7) such that (i) for each of said number of multiaxis diagrams (6, 7), all axes (8, 10) run through a zero-point, and (ii) a position and an angle of each of the axes (8, 10) correspond to a location of a respective ECG lead formed by respective ECG electrodes of the plurality of ECG electrodes in the predefined arrangement; wherein a first multiaxis diagram of the number of multiaxis diagrams (6, 7) comprises axes related to vertical leads and a second multiaxis diagram of the number of multiaxis diagrams (6, 7) comprises axes related to horizontal leads, wherein the device is further adapted to - determine a parameter (23, 24) indicative of a pattern (12, 13) of the ST elevation values, wherein the parameter is determined according to formula: AreaST = ∑ i = 1 M ∑ j = 1 M a ij ⋅ ST i ⋅ ST j, wherein a value of the parameter corresponds to an area of said pattern; and - trigger an alarm when the value of the parameter (23, 24) exceeds or falls below a given threshold value. - a plurality of ECG electrodes which are provided to be positioned on a patient such that the ECG electrodes define a predefined arrangement, wherein the plurality of ECG electrodes are adapted to collect ECG data, wherein the ECG data are ST elevation values; - a device adapted to simultaneously display said ST elevation values and a number of multiaxis diagrams (6, 7) such that (i) for each of said number of multiaxis diagrams (6, 7), all axes (8, 10) run through a zero-point, and (ii) a position and an angle of each of the axes (8, 10) correspond to a location of a respective ECG lead formed by respective ECG electrodes of the plurality of ECG electrodes in the predefined arrangement; (i) for each of said number of multiaxis diagrams (6, 7), all axes (8, 10) run through a zero-point, and (ii) a position and an angle of each of the axes (8, 10) correspond to a location of a respective ECG lead formed by respective ECG electrodes of the plurality of ECG electrodes in the predefined arrangement; wherein a first multiaxis diagram of the number of multiaxis diagrams (6, 7) comprises axes related to vertical leads and a second multiaxis diagram of the number of multiaxis diagrams (6, 7) comprises axes related to horizontal leads, wherein the device is further adapted to - determine a parameter (23, 24) indicative of a pattern (12, 13) of the ST elevation values, wherein the parameter is determined according to formula: AreaST = ∑ i = 1 M ∑ j = 1 M a ij ⋅ ST i ⋅ ST j, wherein - determine a parameter (23, 24) indicative of a pattern (12, 13) of the ST elevation values, wherein the parameter is determined according to formula: AreaST = ∑ i = 1 M ∑ j = 1 M a ij ⋅ ST i ⋅ ST j, wherein a value of the parameter corresponds to an area of said pattern; and - trigger an alarm when the value of the parameter (23, 24) exceeds or falls below a given threshold value. - trigger an alarm when the value of the parameter (23, 24) exceeds or falls below a given threshold value.