Table 2.

Changes in vascular and balloon resistance during inflation for all trials

	Resistance, mmHg·ml−1·min−1
	Nadir	End Inflation	Change, %
Protocol 1
20% MVC (no drug)
Vascular	0.36 ± 0.06	0.22 ± 0.03*	−35 ± 5
Balloon	0.16 ± 0.02	0.09 ± 0.03*	−54 ± 10
20% MVC (Ketorolac)
Vascular	0.39 ± 0.05	0.25 ± 0.03*	−32 ± 5
Balloon	0.17 ± 0.06	0.10 ± 0.06*	−52 ± 9
20% MVC (Ketorolac + l-NMMA)
Vascular	0.39 ± 0.08	0.30 ± 0.04*	−20 ± 5†§
Balloon	0.15 ± 0.03	0.08 ± 0.03*	−53 ± 8
Protocol 2
20% MVC (no drug)
Vascular	0.36 ± 0.03	0.23 ± 0.01*	−37 ± 2
Balloon	0.11 ± 0.02	0.06 ± 0.02*	−61 ± 9
20% MVC (l-NMMA)
Vascular	0.38 ± 0.03	0.27 ± 0.03*	−28 ± 4‡
Balloon	0.12 ± 0.02	0.06 ± 0.02*	−57 ± 6
20% MVC (l-NMMA + Ketorolac)
Vascular	0.43 ± 0.05	0.31 ± 0.04*	−28 ± 5
Balloon	0.13 ± 0.03	0.06 ± 0.02*	−60 ± 6

Values are means ± SE.

^*P < 0.01 vs. nadir.

^†P < 0.01 vs. no drug trial.

^‡P < 0.05 vs. no drug trial.

^§P < 0.05 vs. Ketorolac alone trial.