title: Penile vascular surgery for treating erectile dysfunction: Current role and future direction.
abstract: Penile vascular surgery for treating erectile dysfunction (ED) is still regarded cautiously. Thus we reviewed relevant publications from the last decade, summarising evidence-based reports consistent with the pessimistic consensus and, by contrast, the optimistically viable options for vascular reconstruction for ED published after 2003. Recent studies support a revised model of the tunica albuginea of the corpora cavernosa as a bi-layered structure with a 360° complete inner circular layer and a 300° incomplete outer longitudinal coat. Additional studies show a more sophisticated venous drainage system than previously understood, and most significantly, that the emissary veins can be easily occluded by the shearing action elicited by the inner and outer layers of the tunica albuginea. Pascal's law has been shown to be a significant, if not the major, factor in erectile mechanics, with recent haemodynamic studies on fresh and defrosted human cadavers showing rigid erections despite the lack of endothelial activity. Reports on revascularisation surgery support its utility in treating arterial trauma in young males, and with localised arterial occlusive disease in the older man. Penile venous stripping surgery has been shown to be beneficial in correcting veno-occlusive dysfunction, with outstanding results. The traditional complications of irreversible penile numbness and deformity have been virtually eliminated, with the venous ligation technique superseding venous cautery. Penile vascular reconstructive surgery is viable if, and only if, the surgical handling is appropriate using a sound method. It should be a promising option in the near future.
authors.affiliation: Discipline of General Practice, Sydney Medical School, University of Sydney, Australia.
authors.forename: Eugen
authors.initials: E
authors.lastname: Molodysky
authors.affiliation: Department of Urology, National Taiwan University Hospital, College of Medicine, Taipei, Taiwan.
authors.forename: Shi-Ping
authors.initials: SP
authors.lastname: Liu
authors.affiliation: National Taiwan University Hospital, Jin-Shan Branch, New Taipei, Taiwan.
authors.forename: Sheng-Jean
authors.initials: SJ
authors.lastname: Huang
authors.affiliation: Department of Urology, National Taiwan University Hospital, College of Medicine, Taipei, Taiwan ; National Taiwan University Hospital, Jin-Shan Branch, New Taipei, Taiwan ; Microsurgical Potency Reconstruction and Research Center, Hsu's Andrology, Taipei, Taiwan.
authors.forename: Geng-Long
authors.initials: GL
authors.lastname: Hsu
keywords: Arterial reconstruction; CC, corpora cavernosa; CV, cavernous vein; DDV, deep dorsal vein; DPVL, dorsal penile vein ligation; ED, erectile dysfunction; ERV, erection-related vein; Erectile dysfunction; IEGA, inferior epigastric artery; PAV, para-arterial vein; PCL, penile crural ligation; PRS, penile revascularisation surgery; PVS, penile venous stripping; Penile arterial insufficiency; VOD, veno-occlusive dysfunction; Veno-occlusive dysfunction; Venous stripping