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. Author manuscript; available in PMC: 2015 Jul 1.
Published in final edited form as: JAMA Surg. 2014 Jul 1;149(7):655–662. doi: 10.1001/jamasurg.2013.5067

Figure 4. Preservation of Contractility and Vasorelaxation of Porcine Saphenous Veins With the Pressure Release Valve (PRV) During Manual Distension.

Figure 4

The porcine saphenous veins were left undistended (control) or subjected to pressure distension in the absence (distended) or presence of the PRV. Phenylephrine (PE)-induced contraction (A), endothelial-dependent relaxation (B), and endothelial-independent relaxation (C) were determined in the muscle bath. Error bars indicate SEM.