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Figure 1 Mean arterial pressure was monitored at baseline, 3 h and 48 h after continuous nitroglycerin (NTG) treatment and 2 h after withdrawal of NTG therapy. Arterial pressure decreased after 3 h of NTG treatment, with a return to baseline after 48 h consistent with the development of hemodynamic tolerance. However, arterial pressure was significantly increased 2 h after NTG withdrawal consistent with a rebound phenomenon. +p < 0.05 versus baseline.
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