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  2. Pulmonary artery catheter - Wikipedia

    en.wikipedia.org/wiki/Pulmonary_artery_catheter

    Non-invasive echocardiography and pulse-wave cardiac output monitoring are concordant with (and much safer) if not better than invasive methods defining right and left heart performance. The emergence of MRSA and similar hospital based catheter infections now clearly limits the utility of this type of invasive cardiac ICU intervention.

  3. Instantaneous wave-free ratio - Wikipedia

    en.wikipedia.org/wiki/Instantaneous_wave-free_ratio

    When stenoses are flow limiting, Pd and Pa pressures over the wave-free period diverge; a normal ratio is 1.0 and iFR values of below 0.90 suggest flow limitation. iFR can be calculated using dedicated consoles available for medical use and typically uses an average over 5 heart beats but can be performed using a single heart beat. iFR is ...

  4. Pulse pressure - Wikipedia

    en.wikipedia.org/wiki/Pulse_pressure

    A pulse pressure is considered abnormally low if it is less than 25% of the systolic value. [2] If the pulse pressure is extremely low, i.e. 25 mmHg or less, it may indicate low stroke volume, as in congestive heart failure. [3] The most common cause of a low (narrow) pulse pressure is a drop in left ventricular stroke volume.

  5. Cardiac catheterization - Wikipedia

    en.wikipedia.org/wiki/Cardiac_catheterization

    Cardiac catheterization (heart cath) is the insertion of a catheter into a chamber or vessel of the heart.This is done both for diagnostic and interventional purposes. A common example of cardiac catheterization is coronary catheterization that involves catheterization of the coronary arteries for coronary artery disease and myocardial infarctions ("heart attacks").

  6. Pulmonary wedge pressure - Wikipedia

    en.wikipedia.org/wiki/Pulmonary_wedge_pressure

    Diagram of a pulmonary artery catheter in position. The pulmonary wedge pressure (PWP) (also called pulmonary arterial wedge pressure (PAWP), pulmonary capillary wedge pressure (PCWP), pulmonary artery occlusion pressure (PAOP), or cross-sectional pressure) is the pressure measured by wedging a pulmonary artery catheter with an inflated balloon into a small pulmonary arterial branch. [1]

  7. Central venous pressure - Wikipedia

    en.wikipedia.org/wiki/Central_venous_pressure

    Normal CVP in patients can be measured from two points of reference: [citation needed] Sternum: 0–14 cm H 2 O; Midaxillary line: 8–15 cm H 2 O; CVP can be measured by connecting the patient's central venous catheter to a special infusion set which is connected to a small diameter water column. If the water column is calibrated properly the ...

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