3962
Subsequent addition of phenylephrine infusion , sufficient to re - elevate mean arterial pressure to 106 + / - 4 mm Hg ( P less than 0 . 001 ) for 30 minutes , increased left ventricular filling pressure to 17 + / - 2 mm Hg ( P less than 0 . 05 ) and also significantly increased sigmaST ( P less than 0 . 05 ) .
 phenylephrine
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 phenylephrine