Ischemic Priapism as an Ischemia-Reperfusion Disorder: Crosstalk Among Oxidative Stress, Endoplasmic Reticulum Stress, Inflammation, and Apoptosis

Ischemic priapism is conventionally managed as a time-dependent penile compartment syndrome requiring urgent detumescence. Although clinically indispensable, this approach is biologically incomplete because restoration of cavernosal perfusion can initiate a second wave of tissue injury. We synthesize evidence supporting a three-hit model comprising ischemic metabolic collapse, a reperfusion-driven oxidative and nitrosative burst, and maladaptive integration of mitochondrial dysfunction with endoplasmic reticulum stress, sterile inflammation, regulated cell death, and fibrosis. Experimental agents frequently improve biochemical endpoints, but histological and functional rescue remain inconsistent. Recent syringic acid data, for example, showed improvements in malondialdehyde, total antioxidant status, and oxidative stress index without significant early histological recovery, illustrating a temporal dissociation between molecular and structural outcomes. We therefore propose that detumescence is necessary but not equivalent to tissue rescue. Future studies should prioritize post-reperfusion treatment, time-resolved sampling, cavernosal functional endpoints, and detumescence safety to identify clinically translatable adjunctive therapies.