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A classic study from Bosshardt et al demonstrated that men who used the VD for 6 months were able to restore their ability for sexual intercourse ( 72). In this study with 26 men the average rigidity measured at the base and tip of the penis after application of the VD was > 80% and the duration and extent of nocturnal penile tumescence improved. Moreover, experimental studies in rats showed that VD therapy preserves erectile function through anti-hypoxic, anti-apoptotic, and anti-fibrotic mechanisms by improving the arterial blood flow into the penis ( 73, 101, 104). Ohl DA, Sonksen J, Menge AC, McCabe M, Keller LM . Electroejaculation versus vibratory stimulation in spinal cord injured men: sperm quality and patient preference. J Urol 1997; 157: 2147–2149. It is important to mention that many complications have been associated with prolonged use of rings and bands. Prolonged occlusion of venous return may lead to venous thrombosis and progressively leads to lymphatic and arterial obstruction ( 60). Depending on the duration of this process it may result in local irritation and erosion ( 64). In-vitro and in-vivo studies with ischemic priapism have demonstrated that acute hypoxia leads to smooth muscle paralysis ( 65, 66). Ultimately corporal smooth muscle infarction and ischemic necrosis may occur ( 60, 67– 71). Sonksen J, Fode M, Lochner-Ernst D, Ohl DA. Vibratory ejaculation in 140 spinal cord injured men and home insemination of their partners. Spinal Cord 2012;50:63–6. ED is the inability to develop and maintain an erection for satisfactory sexual intercourse or activity.
No attempt was made to control for factors, such as medications, that may affect the semen quality of the participants in this study. For this reason, complete semen analysis data is not presented. It is often important, however, to note if retrograde ejaculation occurred, because sperm obtained from the retrograde fraction may be useful or sometimes necessary in assisted conception procedures. All participants were catheterized after completion of the three protocol steps if necessary, regardless of the outcome, and assessed for the possibility of retrograde ejaculation. Retrograde ejaculation was defined as 10% or more of the combined total sperm count being represented by the retrograde fraction. Questionnaire Simultaneous vibratory stimulation of both surfaces of the penis at high frequency (70-110 Hz) for 7-10 minutes can lead to gradual filling of the penis with arterial blood within minutes by activating the pudendo-cavernosal reflex. This study provides evidence that Viberect produces a non-invasive, well-tolerated erectogenic effect. These results indicate that penile vibratory stimulation provokes erections via neurostimulatory principles and support further study of this modality in treating men with ED.Lubricants are liquids or gels applied to minimize dryness and pain during sexual activity ( 38). According to the 2012 National Survey of Sexual Health and Behavior, Reece et al reported that 70% of men in the United States older than 24 years of age admit to using lubricants for intercourse, masturbation, and partnered sexual play ( 39). Around 90% of men who have sex with men (MSM) reported lifetime lubricant use ( 40). Sweis R, Biller J . Systemic complications of spinal cord injury. Curr Neurol Neurosci Rep 2017; 17: 8. Viberect® use for erectile rehabilitation in men following radical prostatectomy has also been studied, again, with positive results. Kathiresan AS, Ibrahim E, Aballa TC, Attia GR, Ory SJ, Hoffman DI et al. Comparison of in vitro fertilization/intracytoplasmic sperm injection outcomes in male factor infertility patients with and without spinal cord injuries. Fertil Steril 2011; 96: 562–566.
Kanto S, Uto H, Toya M, Ohnuma T, Arai Y, Kyono K. Fresh testicular sperm retrieved from men with spinal cord injury retains equal fecundity to that from men with obstructive azoospermia via intracytoplasmic sperm injection. Fertil Steril. 2009;92:1333–6. Different lubricants have different qualities such as viscosity, slipperiness, and how long they may last during intercourse. Natural lubricants contain natural plant oils (vegetable, olive, safflower, peanut, and canola oil). Petroleum-based lubricants include petroleum and mineral oils. Other isotonic and pH neutral lubricants are also available ( 42). Various products are available, and most people prefer an odorless, non-irritating preparation. Water- or silicone-based lubricants are recommended since they break down with warm, soapy water ( 38). Silicone-based lubricants have an advantage over water-based ones because they persist longer on skin and mucous membranes. However, there are fewer options on the market that are usually more expensive ( 43). After injury, many SCI patients naturally inquire about their attractiveness, relationships and ability to father children. 3 Infertility is one of the most disheartening sequelae of SCI, a problem primarily caused by anejaculation and poor semen parameters (for example, low motility and low viability). 4, 5, 6 Moreover, only about 9% are able to ejaculate via masturbation. 7 The majority of males with SCI who wish to achieve pregnancy, therefore, require medical assistance to obtain sperm for assisted conception procedures. 8, 9, 10 Chun SS Fenemore J, Heaton JP, Johnston B, Morales A, Enhancement of erectile responses to vasoactive drugs by a variable amplitude oscillation device, Int J Impot Res, Dec 1996, 8(4):221-5 National SCI Statistical Center Spinal Cord Injury—Facts and Figures at a Glance, 2013 available from https://www.nscisc.uab.edu/PublicDocuments/fact_figures_docs/Facts%202013.pdf.Originally, the term pornography refers to the writings about or depictions of prostitutes. The term derives from the Greek word pornographos, which again derives from the Greek words pórne, meaning “whore”, and graphein meaning “to write” ( 10– 12). According to Diamond, the most common definition of pornography used by researchers and in the US courts today is: “media basically construed as intended to entertain or arouse erotic desire” ( 13). Sonksen J, Fode M, Lochner-Ernst D, Ohl DA . Vibratory ejaculation in 140 spinal cord injured men and home insemination of their partners. Spinal Cord 2012; 50: 63–66. Petroleum-based lubricants are not recommended since they may increase the risk of vaginal infection ( 51) and also tend to have an unpleasant odor. Oil-based or petroleum-based lubricating products in combination with latex condoms have been shown to increase the risk of condom breakage ( 52). Natural oils, such as mineral and coconut oils, can also break down latex products. The damage may go unnoticed, increasing the risk of pregnancy or sexually transmitted infections ( 53). Therefore, the Centers for Disease Control and Prevention (CDC) and the Food and Drug Administration (FDA) recommend using water-based lubricant with condoms. One theoretical adverse effect is that lubrication sufficient to noticeably reduce friction may also reduce sensation, potentially impacting negatively upon sexual pleasure and making it more difficult for some individuals to reach orgasm. However, no study has ever demonstrated such adverse event. Despite the fact that lubricant could be very helpful during vaginal or anal penetration, it is important to counsel patients that they should not be considered a replacement for sexual stimulation and arousal. By "immediate", I didn't mean the instant you put the pump on - I meant it's not something that takes months to work after the surgery (but as I said, you must get the surgeon's OK first), and it doesn't require you to get aroused. I'm not familiar with what vacuum the soma pulls. Speed of getting an erection in the pump probably depends on a few things, such as air leaking around the seal (loads of lube helps), level of vacuum, and state of the vascular system supplying blood to the penis. If you've had any cardiovascular issues, the blood supply to the penis is often impacted. Sonksen J, Biering-Sorensen F, Kristensen JK . Ejaculation induced by penile vibratory stimulation in men with spinal cord injuries. the importance of the vibratory amplitude. Paraplegia 1994; 32: 651–660.
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