Table 1 Blood gases and respiratory variables during PLV with two different strategies of gas ventilation.

A

   490± 30^**

   62± 6

    228± 50^*

207± 34^*

B

   493± 40^**

       61± 125

    230± 56^*

245± 62^*

A

14.9± 3^**

   55± 4

    34± 6^*

35± 4^*

B

   14± 2^**

   48± 3

    32± 4^*

31± 4^*

A

   1.02± 0.1^**

     0.52± 0.05

     0.63± 0.08

0.59± 0.08

B

     1.05± 0.05^**

     0.43± 0.05

     0.52± 0.06

0.55± 0.07

A

     34± 1.7^*

        43± 5.9^*

          65± 3.4^**

    67± 5.8^**

B

  38± 4^*

        53± 7.2^*

      44± 5#

   43± 6.1#

A

    13.7± 3.0^**

   37± 5

    35± 3

 42± 2.7

B

    11± 3^**

   37± 1

       30± 1.8

   32± 2.5#

A

    41.7± 1.5^**

54.4± 3

        41.7± 2.3^**

  43.8± 1.1^**

B

    39.9± 2.9^**

    48.3± 2.2

                64± 2.4^** ##

          66± 2.1^** ##