Efficacy, safety and patient satisfaction outcomes of the AMS 700CX inflatable penile prosthesis: results of a long-term multicenter study. AMS 700CX Study Group.
OBJECTIVE
We performed a long-term multicenter study of the AMS 700CX 3-piece inflatable penile prosthesis, focusing on longevity, morbidity and patient satisfaction in men implanted up to 134 months with a median followup of 47.7 months.


METHODS
We performed a large scale retrospective multicenter study in 2 phases. Phase 1 was a medical record review of 372 men who underwent implantation with the AMS 700CX penile prosthesis from 1987 to 1996 by 7 frequent penile prosthesis implanters. Phase 2 included a structured telephone interview of 207 patients by a neutral observer.


RESULTS
For the 372 men in phase 1 mean device mechanical reliability plus or minus standard deviation was 92.1% + or - 3.3% after 3 and 86.2% + or - 4.6% after 5 years. Patient age was 21 to 79 years (mean 57.6 + or - 11.0) at implantation. The etiology of erectile dysfunction was vascular in 27.7% of the cases, Peyronie's disease in 16.9%, diabetes mellitus in 12.9% and radical surgery in 11.6%. Of the men 55.6% received previous treatment for erectile dysfunction. Postoperative infection and device malfunction developed in 3.2% and 17.5% of the cases, respectively. Of the 207 men interviewed in phase 2, 86% still had an AMS 700CX penile prosthesis implanted, including 87.1% with erection suitable for coitus. Currently 79% of those with a device use it at least twice monthly and 88.2% would recommend an implant to a relative or friend.


CONCLUSIONS
The AMS 700CX penile implant produced suitable erection and excellent patient satisfaction at long-term followup in the majority of men. Implant reliability is excellent and postoperative morbidity is low.
Carson
C C
CC
University of North Carolina, Chapel Hill, North Carolina, Wishard Memorial Hospital, Indianapolis, Indiana, and Mason Clinic, Seattle, Washington.
Mulcahy
J J
JJ
Govier
F E
FE
D000328:Adult; D000368:Aged; D006801:Humans; D008297:Male; D008875:Middle Aged; D017060:Patient Satisfaction; D019935:Penile Implantation; D015917:Penile Prosthesis; D010413:Penis; D011183:Postoperative Complications; D011474:Prosthesis Design; D012189:Retrospective Studies; D012449:Safety