Alveolar Overdistension as a Cause of Lung Injury: Differences among Three Animal Species

Table 3

Area of alveolar collapse in morphometric analysis.

	Pig groups		Rat groups
	P-NtV	P-HtV	Rat-NtV	Rat-HtV
AAC, total^a, c	43.1±10.5	54.31±8.4	38.5±10.2	26.8±4.9
AAC in upper lobes^b	34.5±7.2	46.3±4.8
AAC in medium lobes	45.8±10.9	56.4±8.6
AAC in lower lobes^b	48.8±7.7	60.1±3.8

Values are percentages, mean ± SD. P-NtV: pigs with normal tidal volume; P-HtV: pigs with high tidal volume; Rat-NtV: rats with normal tidal volume; Rat-HtV: rats with high tidal volume; AAC: area of alveolar collapse.
^a𝑃<0.05 between pig and rat groups.
^b𝑃<0.05 between P-NtV and P-HtV groups.
^c𝑃<0.05 between Rat-NtV and Rat-HtV groups.