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Table 1 Characteristics of the study population

From: Transthoracic echocardiography: an accurate and precise method for estimating cardiac output in the critically ill patient

Characteristic Study population (n = 38)
Male 26 (68)
Age (years) 65 (58–74)
SAPS II 67 (51–78)
Admission
 Septic shock/SIRS 19 (50)
 Cardiogenic shock 5 (13)
 Hypovolemic shock 3 (8)
 Respiratory failure 11 (29)
Indication for PAC monitoring
 Hemodynamic failure 24 (63)
 Respiratory failure 14 (37)
Catecholamines
 Norepinephrine 28 (74)
 Dobutamine 3 (7)
 Epinephrine 2 (5)
Surgery 2 (5)
MAP (mmHg) 72 (67–85)
HR (bpm) 102 (81–119)
Sat O2 (%) 96 (93–98)
PaO2/FiO2 ratio 216 (133–294)
Mechanical ventilation
 Tidal volume (ml) 460 (373–500)
 PEEP (cmH2O) 8 (5–10)
 RR (cycle/min) 22 (19–26)
 PPlat (cmH2O) 20 (17–23)
 FIO2 (%) 45 (35–70)
LVEF (%) 58 (42–67)
CO-PAC (L/min) 5.8 (4.7–7.5)
CO-TTE (L/min) 5.8 (4.7–7.1)
SV-PAC (ml) 63 (46–78)
SV-TTE (ml) 64 (49–71)
RV/LV ratio 0.6 (0.6–0.7)
TAPSE (mm) 1.9 (1.6–2.3)
  1. Data expressed as median (IQR) or n (%)
  2. SAPS II Simplified Acute Physiology Score, SIRS systemic inflammatory response syndrome, PAC pulmonary artery catheter, MAP mean arterial pressure, HR heart rate, Sat O 2 oxygen saturation, PEEP positive end-expiratory pressure, RR respiratory rate, PPlat plateau pressure, FIO 2 fraction of inspired oxygen, LVEF left ventricular ejection fraction, CO-PAC cardiac output measured with a pulmonary artery catheter, CO-TTE cardiac output estimated by transthoracic echocardiography, SV-PAC stroke volume measured by pulmonary artery catheter, SV-TTE stroke volume estimated by transthoracic echocardiography, TAPSE tricuspid annular plane systolic excursion, RV/LV ratio ratio between right ventricle area and left ventricle area PaO 2 arterial oxygen partial pressure FIO 2 fractional inspired oxygen