What were the results of a study sponsored by the National ...

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What were the results of a study sponsored by the National Institutes of Health, which compared venoarterial ECLS with conventional therapy in adult patients with respiratory therapy?
 
  A. The results failed to show an improvement in outcome.
  B. ECLS recipients fared much better than persons in the conventional therapy group.
  C. Patients receiving conventional therapy had better outcomes than those in the ECLS group.
  D. The study was flawed because of patient selection problems.

Question 2

How long was the first successful human ECLS case sustained?
 
  A. 8 hours
  B. 15 hours
  C. 58 hours
  D. 75 hours

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Answer to Question 1

ANS: A
A. Correct response: In 1974, the national Institutes of Health sponsored a multicenter, randomized trial that compared venoarterial ECLS with conventional therapy in adults with respiratory failure. The results failed to show an improvement in outcome. Both ECLS and conventional therapy demonstrated a dismal survival rate, with no significant difference (9.5 survival rate on ECLS patients and 8.3 in the conventional group).
B. Incorrect response: See explanation A.
C. Incorrect response: See explanation A.
D. Incorrect response: See explanation A.

Answer to Question 2

ANS: D
A. Incorrect response: See explanation D.
B. Incorrect response: See explanation D.
C. Incorrect response: See explanation D.
D. Correct response: The first successful human ECLS case was reported in 1972, in which a 24-year-old male with multiple trauma injuries was supported for 75 hours.

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