F. Courtois

Perceived Physiological and Orgasmic Sensations at Ejaculation in Spinal Cord Injured Men

INTRODUCTION With the advances in penile vibrator stimulation (PVS), most spinal cord injured (SCI) men can self-ejaculate. Oral midodrine may further increase ejaculation success, while maintaining autonomy. Since most SCI men attempt ejaculation for sexual rather than reproductive purposes, self-ejaculation should be emphasized and sensations explored. AIMS Explore (i) self-ejaculation success rate in SCI men; (ii) vascular parameters indicative of autonomic dysreflexia (AD) during sexual stimulation and ejaculation; and (iii) sensations associated with ejaculation. METHODS Ejaculation was assessed on 81 SCI men with complete ASIA A (49%) and incomplete B to D lesions (51%), subdivided into tetraplegics (C2-T2), paraplegics sensitive to AD (T3-T6), paraplegics not sensitive to AD (T7-T10), paraplegics with lesions to the emission pathway (T11-L2), and paraplegics with lesions interrupting the emission-ejaculation pathways (L3-below). Natural stimulation was attempted first followed, if negative, by PVS followed, if again negative, by PVS combined with oral midodrine (5-25 mg). MAIN OUTCOME MEASURES Ejaculation success, systolic and diastolic blood pressure, and perceived physiological and orgasmic sensations. RESULTS Overall 91% reached ejaculation, 30% with natural stimulation, 49% with PVS and 12% with midodrine plus PVS. Midodrine salvaged up to 27% depending upon the lesion. Physiological and orgasmic sensations were perceived significantly more at ejaculation than sexual stimulation. Tetraplegics did not differ from paraplegics sensitive to AD on perceived cardiovascular and muscular sensations, but perceived significantly more autonomic sensations, and generally more physiological sensations than lower lesions unsensitive to AD. CONCLUSION Most SCI men can self-ejaculate and perceive physiological and orgasmic sensations. The climactic experience of ejaculation seems related to AD, few sensations being reported when AD is not reached, pleasurable climactic sensations being reported when mild to moderate AD is reached, and unpleasant or painful sensations reported with severe AD. Sexual rehabilitation should emphasize self-ejaculation and self-exploration and consider cognitive reframing to maximize sexual perceptions.

Sexual function in spinal cord injury men. I. Assessing sexual capability

Precise diagnoses are seldom made upon complaints of sexual dysfunction by spinal cord injured men. The dysfunction is inevitably attributed to the neurological condition and available treatments are offered with little knowledge of the individual residual capacity or other contributing factors. Current practice emphasizes these treatment approaches, but the high rejection rate associated with the most widely used technique of intracavernous injections suggests that remaining sexual function should also be investigated. This study explores remaining function using physiological recording techniques and classifying the subjects according to the innervation of the reproductive system. The results show that, with objective measurements and proper classification of the subjects, 100% of individuals with high lesions maintain penile responses to reflexogenic stimulation and up to 90% of those with lower lesions maintain penile responses to psychogenic stimulation. These latter subjects also show naturally occurring emissions in 100% of the cases when they suffer from lesions to the conus terminalis and when they use psychogenic stimulation as a means of inducing erection and emission. Results from subjective reports reveal that spinal cord injured men underestimate their sexual capacity, while diagnoses based on clinical findings are better predictors.

Blood pressure changes during sexual stimulation, ejaculation and midodrine treatment in men with spinal cord injury

Associate Editor

Posttraumatic erectile potential of spinal cord injured men: How physiologic recordings supplement subjective reports

OBJECTIVE To investigate by means of a neurophysiologic model the remaining erectile function in spinal cord injured men. DESIGN A nonrandomized control trial. SETTING A Referred Care Center. SUBJECTS Forty-seven spinal cord injured men and 7 noninjured controls. INTERVENTION The subject penile responses were recorded by a penile strain gauge during two sessions--one to obtain baseline responses, and one with reflexogenic stimulation (masturbation) and psychogenic stimulation (film). MEASURES Average tumescence, maximal tumescence, percentage rigidity, and duration of tumescence and rigidity. RESULTS Significant results were found for subjects with lower lesions using psychogenic stimulation as their optimal mode compared with reflexogenic stimulation as an alternate mode, and for subjects with higher lesions using reflexogenic stimulation as their optimal mode, compared with psychogenic stimulation as an alternate mode. The responses with optimal stimulation modes were comparable to those achieved by controls. CONCLUSION The findings validate the neurophysiologic model of posttraumatic erectile potential as a function of the lesion type and stimulation source. The results were comparable to those of noninjured subjects; the potential for normal function is present and may be amenable to sexual rehabilitation or use in conjunction with new oral drug treatments for impotence.

Assessing and conceptualizing orgasm after a spinal cord injury

Study Type – Aetiology (individual cohort)

The Control of Male Sexual Responses

Male sexual responses are reflexes mediated by the spinal cord and modulated by neural circuitries involving both the peripheral and central nervous system. While the brain interact with the reflexes to allow perception of sexual sensations and to exert excitatory or inhibitory influences, penile reflexes can occur despite complete transections of the spinal cord, as demonstrated by the reviewed animal studies on spinalization and human studies on spinal cord injury. Neurophysiological and neuropharmacological substrates of the male sexual responses will be discussed in this review, starting with the spinal mediation of erection and its underlying mechanism with nitric oxide (NO), followed by the description of the ejaculation process, its neural mediation and its coordination by the spinal generator of ejaculation (SGE), followed by the occurrence of climax as a multisegmental sympathetic reflex discharge. Brain modulation of these reflexes will be discussed through neurophysiological evidence involving structures such as the medial preoptic area of hypothalamus (MPOA), the paraventricular nucleus (PVN), the periaqueductal gray (PAG), and the nucleus para-gigantocellularis (nPGI), and through neuropharmacological evidence involving neurotransmitters such as serotonin (5-HT), dopamine and oxytocin. The pharmacological developments based on these mechanisms to treat male sexual dysfunctions will complete this review, including phosphodiesterase (PDE-5) inhibitors and intracavernous injections (ICI) for the treatment of erectile dysfunctions (ED), selective serotonin reuptake inhibitor (SSRI) for the treatment of premature ejaculation, and cholinesterase inhibitors as well as alpha adrenergic drugs for the treatment of anejaculation and retrograde ejaculation. Evidence from spinal cord injured studies will be highlighted upon each step.

Clinical approach to erectile dysfunction in spinal cord injured men. A review of clinical and experimental data.

Despite the many developments in the area of sexual dysfunction, rehabilitation settings seldom investigate the remaining sexual function following spinal cord injury, or offer differential diagnoses of sexual dysfunction in spinal cord injured men. This article attempts to show how sexual rehabilitation should begin with a thorough assessment of the sexual function of paraplegic and tetraplegic men. Assessment includes a basic neurological examination of the perineal area and an extended clinical interview on sexual function and visceral function. The interpretation of patient evaluation is discussed in terms of a classification system adapted to sexual purposes and in terms of the differential diagnoses between sexual dysfunctions of organic, and those of predominantly psychogenic origin in the spinal cord injured patient. The organic or psychogenic contribution is discussed in terms of sophisticated procedures, where assessment of nocturnal penile tumescence (NPT) is critically evaluated and where alternatives such as urodynamic findings and skin potentials are discussed. Treatment strategies, such as intracavernous injections and cognitive-behavioural strategies adapted to different lesion types, are discussed.

Surgical Outcomes and Patients' Satisfaction with Suprapubic Phalloplasty

INTRODUCTION Many techniques, specifically forearm free flap phalloplasty, are used in penile reconstructive surgery. Although satisfying, a major disadvantage is the large, stigmatizing scar on the donor site, which leads many patients to explore alternatives. AIM The aim of this study is to assess the outcomes and satisfaction of patients offered the choice between metaidioplasty, forearm free flap, and suprapubic phalloplasty. METHODS Medical outcomes from the three-stage surgery were collected from the hospital files of 24 patients, who were also interviewed to assess their satisfaction, sexual function, and psychosexual well-being. MAIN OUTCOME MEASURES Medical complications, anthropometric measures, and interviewing questionnaire on satisfaction with appearance, sexual function, and psychological variables. RESULTS Duration of surgery and of hospital stay was relatively short in the first (1 hour 30 minutes; 3 days) and last (1 hour 40 minutes; 3 days) stage of surgery involving tissue expansion and neophallus release. These two stages were associated with few complications (17% and 4% minor complications respectively, 12% additional complications with hospitalization for the first stage). The second stage involving tubing was associated with longer surgery and hospital stay (2 hour 15 minutes; 5 days) and had more complications (54% minor complications and 29% requiring hospitalization) although fewer than one-step surgery. No loss of neophallus was reported. Overall, 95% of patients were satisfied with their choice of phalloplasty, 95% with the appearance, 81% with the length (Mean = 12.83 cm), and 71% with the circumference (Mean = 10.83 cm) of their neophallus. Satisfactory appearance was significantly correlated (P < 0.01) with penile length (r = 0.69) and diameter (r = 0.77). Sexual satisfaction was significantly correlated with penile diameter (r = 0.758), frequency of orgasm (r = 0.71), perceived importance of voiding while standing (r = 0.56), presurgery satisfaction with sexuality (r = 0.58), current masculine-feminine scale (r = 0.58), attractive-unattractive scale (r = 0.69), and happy-depressed scale (r = 0.63). CONCLUSION Suprapubic phalloplasty, despite the lack of urethroplasty, offers an interesting alternative for patients concerned with the stigmatizing scar on the donor site.

The Assessment of Sensory Detection Thresholds on the Perineum and Breast Compared with Control Body Sites

INTRODUCTION Few studies explored multiple sensory detection thresholds on the perineum and breast, but these normative data may provide standards for clinical conditions such as aging, genital and breast surgeries, pathological conditions affecting the genitals, and sexual function. AIMS The aim of this study was to provide normative data on sensory detection thresholds of three sensory modalities on the perineum and breast. METHODS Thirty healthy women aged between 18 and 35 years were assessed on the perineum (clitoris, labia minora, vaginal, and anal margin), breast (lateral, areola, nipple), and control body locations (neck, forearm, abdomen) for three sensory modalities (light touch, pressure, vibration). MAIN OUTCOME MEASURES Average detection thresholds for each body location and sensory modality and statistical comparisons between the primary genital, secondary sexual, and neutral zones were the main outcome measures. RESULTS Average detection thresholds for light touch suggest that the neck, forearm, and vaginal margin are most sensitive, and areola least sensitive. No statistical difference is found between the primary and secondary sexual zones, but the secondary sexual zone is significantly more sensitive than the neutral zone. Average detection thresholds for pressure suggest that the clitoris and nipple are most sensitive, and the lateral breast and abdomen least sensitive. No statistical difference is found between the primary and secondary sexual zone, but they are both significantly more sensitive than the neutral zone. Average detection thresholds for vibration suggest that the clitoris and nipple are most sensitive. The secondary sexual zone is significantly more sensitive than the primary and neutral zone, but the latter two show no difference. CONCLUSION The current normative data from sensory detection threshold are discussed in terms of providing standard values for research and clinical conditions. Additional analysis from breast volume, body mass index, hormonal contraception, menstrual cycle, and sexual orientation do not seem to influence the results. Sexual abstinence and body piercing may have some impact.

Risk factors for posttraumatic stress disorder in persons with spinal cord injury.

PURPOSE Many of the events that cause spinal cord injury (SCI) are traumatic events that can result in posttraumatic stress disorder (PTSD). It therefore appears that most persons with SCI are at risk for developing PTSD. This study retrospectively examined risk factors for PTSD symptoms in a sample of 71 persons with SCI. METHOD The Structured Clinical Interview for DSM-IV was used to assess full and partial PTSD diagnoses. Self-administered questionnaires were used to measure potential risk factors. RESULTS Results indicated that 11% of the participants met the criteria for full PTSD, and an additional 20% met the criteria for partial PTSD at some point after their SCI. Hierarchical linear regression analyses revealed that trauma history, peritraumatic reactions, and intolerance of uncertainty predicted the number of PTSD symptoms. CONCLUSION This study highlights the importance of trauma history, peritraumatic reactions, and intolerance of uncertainty in the development of PTSD symptoms. Patients at risk for PTSD should be identified early in the rehabilitation process and could benefit from psychological interventions with the aim of preventing PTSD development.