Is extravascular lung water index useful for the diagnostic accuracy of lung injury in patients with shock? We need more evidence

Table 2 Positive likelihood ratios and pretest and positive post-test odds for mortality given a positive EVLW test

		ALI alone	95% CI	Combined with ALI	95% CI	Combined with ARDS	95% CI	Combined with sLI	95% CI
EVLW/ABW	LHR⁺	1.83	1.02-3.3	2.27	0.92-5.57	1.89	0.72-4.97	4.4	1.21-16
	Pretest odds	0.38	-	0.38	-	0.38	-	0.38	-
	Post-test odds⁺	0.69	0.37-1.27	0.86	0.39-1.86	0.71	0.31-1.63	1.66	0.59-4.73
EVLW/PBW	LHR⁺	1.41	0.77-2.56	1.51	0.52-4.37	1.76	0.58-5.32	1.98	0.51-7.76
	Pretest odds	0.38	-	0.38	-	0.38	-	0.38	-
	Post-test odds⁺	0.53	0.28-1	0.57	0.23-1.4	0.67	0.27-1.66	0.75	0.26-2.18
EVLW/PBV	LHR⁺	2.11	1.05-4.24	1.76	0.58-5.32	2.11	0.57-8.62	3.52	0.9-13.8
	Pretest odds	0.38	-	0.38	-	0.38	-	0.38	-
	Post-test odds⁺	0.8	0.41-1.55	0.67	0.27-1.68	0.8	0.29-2.42	1.33	0.46-3.9

The positive extravascular lung water (EVLW) test is defined as EVLW/ABW of greater than 10 mL/kg, EVLW/PBW of greater than 10 mL/kg, and EVLW/PBV of greater than 1.5. ABW, actual body weight; ALI, acute lung injury; ARDS, acute respiratory distress syndrome; CI, confidence interval; LHR, likelihood ratio; PBV, pulmonary blood volume; PBW, predicted body weight; sLI, severe lung injury.

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