西地那非对器质性勃起功能障碍的夜间勃起作用

目的 探讨西地那非对器质性ED夜间勃起的作用。方法 对28例器质性ED患者予以万艾可100mg睡前口服，用NEVA监测夜间勃起情况。结果 器质性ED患者的勃起参数有明显改善（P〈0．05）。结论无性刺激条件下万艾可增强器质性ED患者夜间勃起。     

小剂量服用他达拉非对阴茎夜间勃起作用的研究

目的:探讨他达拉非对阴茎夜间勃起的作用。方法:14例器质性勃起功能障碍(ED)患者予以小剂量他达拉非(10mg/3d)治疗,睡前口服,1个月后用夜间生物电阻抗容积测定(NEVA)监测患者阴茎夜间勃起情况。结果:14例器质性ED患者小剂量他达拉非治疗1个月后,其勃起功能比治疗前有明显改善(P<0.05)。结论:小剂量服用他达拉非可改善器质性ED患者夜间勃起。     

复方玄驹胶囊对勃起功能障碍患者夜间阴茎勃起的影响

目的探讨复方玄驹胶囊对勃起功能障碍(ED)患者夜间阴茎勃起的作用。方法通过RigiScan阴茎硬度检测仪对门诊就诊的32例ED患者进行夜间阴茎勃起硬度和膨胀度(NPTR)检测,根据结果分为器质性ED(13例)和心理性ED(19例)两组。两组患者完成国际勃起功能指数-5(IIEF-5)评估后给予复方玄驹胶囊口服,一日3次,一次3g,用药4周后使用RigiScan再次复测NPTR及再次完成IIEF-5评估。比较用药前后NPTR参数变化,包括勃起次数、阴茎头部有效勃起的持续时间、阴茎周径变化、阴茎头/根部硬度活动单位(RAU)及膨胀活动单位(TAU)以及IIEF-5评分变化情况。结果服用复方玄驹胶囊4周后,器质性ED组患者夜间勃起次数、阴茎头部有效勃起的持续时间、阴茎周径变化,以及阴茎头/根部RAU及TAU均有显著改善(P0.05);心理性ED组患者阴茎头部有效勃起的持续时间、平均勃起次数、阴茎周径变化有显著改善(P0.05),但头/根部的RAU及TAU与治疗前比较无统计学差异(P0.05)。器质性ED组治疗后IIEF-5评分显著改善[(7.5±2.1)vs.(5.9±1.6),P0.05],但心理性ED组治疗前后无统计学差异[(14.6±5.0)vs.(13.5±4.2),P0.05]。结论复方玄驹胶囊可改善器质性ED患者和心理性ED患者的夜间阴茎勃起状况。     

每日小剂量他达拉非治疗骨盆骨折尿道断裂后勃起功能障碍的疗效观察

目的:评价每日小剂量他达拉非治疗骨盆骨折尿道断裂(PFUD)后勃起功能障碍(ED)的疗效。方法:2008年1月至2011年12月共有46例骨盆骨折尿道断裂后ED患者纳入观察。患者年龄25～51(33.9±7.2)岁,受伤时间3～72(19.6±12.7)个月。所有患者自诉受伤前的性功能正常。患者在未服用5型磷酸二酯酶抑制剂的情况下进行夜间勃起周径和硬度测量(NPTR)。根据NPTR检测结果将患者分为有夜间勃起异常组和无夜间勃起组。对所有患者给予每晚他达拉非10 mg治疗3个月,采用IIEF-5评分、性生活日记问题2和问题3评价治疗效果。结果:38例(82.6%)患者完成检查和治疗,8例失访。NPTR检测证实夜间勃起异常26例(68.4%),无夜间勃起12例(31.6%)。他达拉非治疗3个月后,夜间勃起异常组患者IIEF-5改善明显高于无夜间勃起组(P<0.05),夜间勃起异常组患者对SEP2和SEP3回答"是"的比例明显高于无夜间勃起组(76.9%vs41.7%,65.4%vs 25.0%,P<0.05)。结论:每日小剂量他达拉非可有效改善PFUD后ED患者的勃起功能,有夜间勃起的患者治疗效果更明显。     

勃起功能障碍患者行夜间阴茎勃起监测的护理

目的 探讨提高夜间阴茎勃起(NPT)监测结果准确性的护理措施.方法 应用夜间阴茎勃起监测仪对183例勃起功能障碍(ED)患者进行NPT监测.结果 183例患者中,包茎1例、阴茎过分短小2例未完成监测,完成监测的180例中,96例为心理性ED,84例为器质性ED;7例器质性ED患者在皮肤准备及粘贴电极时有明显的勃起反应,但NPT监测夜间未见明显勃起反应.结论 电极粘贴牢固、电极导线连接良好、记录仪电池电量充足、睡眠质量好是保证NPT监测结果准确的关键.     

国产枸橼酸西地那非治疗男性勃起功能障碍的安全性和有效性研究

目的:评价国产枸橼酸西地那非(金戈)治疗男性勃起功能障碍(ED)的安全性、有效性和耐受性。方法:采用多中心、随机、双盲、安慰剂对照研究方法,在国内5家医院泌尿外科或男科门诊纳入222例ED患者,随机分为西地那非组(111例)和安慰剂组(111例),进行为期8周的临床治疗观察。以国际勃起功能问卷(IIEF)评分、性交成功率作为有效性评价指标,以不良事件发生率作为安全性评价指标。结果:西地那非组和安慰剂组患者年龄分别为(47.20±11.32)岁和(46.67±13.08)岁(P0.05),ED病因分别为心理性(27.93% vs 23.42%)、器质性(21.62% vs 29.73%)和混合性ED(50.45% vs 46.85%)(P均0.05),其他流行病学数据如身高、体重、民族、吸烟、饮酒、药物过敏史等一般情况也均无统计学差异。对主要疗效指标的分析结果显示,西地那非组与安慰剂组对勃起功能显著有效率分别为78.90%和29.91%(P0.01);西地那非组性交成功率和总体疗效分别为63.87%和77.98%,均明显高于安慰剂组的29.16%和34.58%(P均0.01)。在对于不同种类ED的治疗上,西地那非对心理性、器质性和混合性ED的有效率分别为64.52%、83.33%和82.14%,明显高于安慰剂组的46.15%、21.21%和25.00%(P均0.01)。安全性评价结果显示,共有45例(20.27%)受试者出现了各种不良事件(西地那非组有32例,安慰剂组有13例),所出现的不良事件大多数为轻度、一过性的。结论:国产枸橼酸西地那非是一种可治疗各种病因导致ED的安全有效的药物,且患者耐受性较好。     

西地那非治疗男性勃起功能障碍1200例临床应用体会

目的 评价口服西地那非治疗勃起功能障碍(ED)的疗效.方法 1200例ED患者服用西地那非治疗,其中心理性ED 789例(65.75%),器质性ED 162例(13.50%),混合性ED 249例(20.75%).结果 经服用西地那非治疗1006例取得有效和显效,总有效率83.83%,其中心理性ED 95.06%(750/789)、器质性ED 66.05%(107/162)、混合性ED 59.84%(149/249),本组口服西地那非治疗ED无重大不良反应发生.结论 西地那非为口服治疗ED一线药物,安全有效.     

西地那非治疗勃起功能障碍的临床疗效

目的 :观察西地那非对不同年龄和病因勃起功能障碍 (ED)病人的疗效。　方法 :88例ED病人口服不同剂量的西地那非 4～ 2 2周 ,以国际勃起功能指数 5 (IIEF 5 )评分为评估标准判断疗效 ,设对照组作比较。　结果 :西地那非治疗ED病人的总疗效率为 80 .7% ,IIEF 5值上升幅度与西地那非疗效呈正相关。不同年龄ED病人的疗效无明显差异。神经性ED病人的显效率和IIEF 5值与心因性病人差异显著。　结论 :西地那非治疗ED是安全有效的 ,IIEF 5可作为评判ED疗效的可靠指标。     

应用自尊心和性关系问卷评价小剂量他达拉非治疗ED疗效

目的:探讨小剂量他达拉非对勃起功能障碍(ED)患者的自尊心、自信心和性关系的影响。方法:17例ED患者每晚口服他达拉非5 mg 12周,用配对t检验比较治疗前后自尊心和性关系问卷(SEAR)、勃起功能国际问卷-5(IIEF-5)和夜间阴茎勃起(NEVA测定)的情况。结果:治疗后SEAR评分、IIEF-5两者均明显提高(P<0.01);夜间阴茎勃起明显改善(P<0.05)。结论:每日小剂量口服他达拉非可显著提高ED患者的自尊心、自信心和性关系满意度,改善ED患者的夜间勃起功能,是治疗ED的有效措施。     

年龄对勃起功能障碍患者夜间勃起检测结果的影响

目的:随着年龄的增长,心理性和器质性ED的构成比发生变化。本文旨在探讨不同年龄组勃起功能障碍患者应用夜间生物电阻抗容积测定(NEVA)的结果及意义。方法:83例ED患者根据年龄分为4组,并应用NEVA对各患者进行夜间勃起试验(NPT)检测。结果:心理性ED49例,器质性ED34例,随着年龄的增长,器质性ED所占的比例由30.3%升至60.0%,而心理性ED的比例则由69.7%降至40.0%。结论:随着年龄的增长,器质性ED比例有升高的趋势,心理性ED则相反。     

Comparative study between audiovisualsexual stimulation test and nocturnal penile tumescence test using RigiScan Plus in the evaluation of erectile dysfunction

INTRODUCTION: Although the nocturnal penile tumescence (NPT) test is considered the gold standard for the differential diagnosis of psychogenic versus organic erectile dysfunction (ED), concerns have recently been raised regarding the financial and time expenditure it demands. We evaluated the diagnostic efficacy of the audiovisual sexual stimulation (AVSS) test as an alternative to the NPT test. PATIENTS AND METHODS: A total of 43 patients with ED were examined. Each patient filled in an International Index of Erectile Function (IIEF) questionnaire. The evaluation of each patient consisted of AVSS and NPT tests which were performed using the RigiScan Plus. The results obtained with the two tests were compared. The patients with normal NPT patterns were presumed to have a psychogenic etiology of their ED and those with abnormal NPT patterns to have an organic etiology. RESULTS: The overall IIEF score was 32.5 +/- (SD) 9.2, and the erectile domain score was 12.2 +/- 4.5. Twenty-three patients had normal responses to the AVSS test, while 20 had abnormal responses. Twenty-two of the former 23 patients and 9 of the latter 20 patients had normal NPT patterns. Therefore, the AVSS test discriminated psychogenic ED with 71% sensitivity and 92% specificity. The overall accuracy of the test in this study was 77%. CONCLUSIONS: The AVSS test is simple, practical, and inexpensive, and its diagnostic accuracy is comparable to that of the NPT test. We conclude that the AVSS test should be the examination of choice for the primary etiological diagnosis in ED.     

Long-term efficacy and safety of oral Viagra (sildenafil citrate) in men with erectile dysfunction and the effect of randomised treatment withdrawal

The long-term efficacy and safety of oral Viagra (sildenafil citrate), a selective phosphodiesterase 5 inhibitor, and the effect of withdrawing treatment were evaluated in men with erectile dysfunction (ED). In 233 men with ED of psychogenic or mixed organic/psychogenic aetiology, 16 weeks of open-label, flexible-dose sildenafil treatment (10-100 mg) was followed by eight weeks of double-blind, fixed-dose, randomised withdrawal to placebo or continued treatment with sildenafil. Sildenafil was taken as needed (not more than once daily) approximately 1 h prior to sexual activity. The main outcome measures were a global efficacy question, a sexual function questionnaire, an event log of erections, and adverse event recording. In the open-label phase, 200 of 216 patients (93%) reported improved erections with sildenafil; 28 patients (12%) discontinued treatment. In the double-blind phase, the significant improvements in the frequency and duration of erections were maintained in the sildenafil group but returned to pre-treatment values in patients on placebo (P values < 0.0001 versus placebo). The most frequent adverse events in the sildenafil group during the double-blind phase were flushing (7%), headache (6%), and dyspepsia (5%). Of the 192 patients enrolled in the 1-y extension, 90% completed the study; only two patients (1%) were withdrawn due to lack of efficacy. In men with ED of psychogenic or mixed aetiology, oral sildenafil is effective and well-tolerated both at the initiation of therapy and during long-term treatment. For most patients, sildenafil treatment must be continued for improvements in erectile function to be maintained.     

Sildenafil: efficacy and safety in daily clinical experience

OBJECTIVES: Sildenafil citrate (Viagra) is a potent selective inhibitor of phosphodiesterase type 5 proposed for the oral treatment of erectile dysfunction (ED). The aim of this study was to evaluate its efficacy and safety when used in daily practice in patients with ED of various aetiology. PATIENTS AND METHODS: From September 1998 to April 1999, 380 patients chose sildenafil as treatment for their ED. One hundred and forty-five (38%) of them suffered from psychogenic ED, 125 (33%) organic and 110 (29%) of mixed aetiology. The grade of erection achieved and the occurrence of satisfactory sexual intercourse assessed the efficacy. Safety and tolerance were evaluated recording any side effect or adverse event. RESULTS: The overall efficacy of Viagra was 77%, with a response of 100% among the group of hormonal patients, 88% for psychogenic, 72% for mixed, 69% for diabetes, 65% for vascular and 60% for neurological symptoms. A few and mild to moderate side effects were recorded. CONCLUSION: These results indicate that the use of sildenafil citrate is an effective and well-tolerated therapy for men with ED of various aetiology with an overall success rate of 77%.     

Erectile dysfunction after kidney transplantation: our 22 years of experience

AIM: To evaluate the results of treatment of erectile dysfunction (ED) in kidney transplant recipients before and after the advent of sildenafil. MATERIALS AND METHODS: From 1981 through 2002, 971 male patients of mean age 53.4 years received a renal graft. Erectile dysfunction (ED) was investigated in all patients at the first urologic visit posttransplantation. Psycho-sexual support was offered to all patients. Before sildenafil use (1998), our diagnostic approach was complex. From 1998 we tested: serum levels of testosterone, prolactin, and glucose with penile duplex ultrasonography and NPT reserved for selected cases. RESULTS: From 1981 through 1998, 365 male kidney transplant recipients (45%) reported ED. Only 169 patients chose to be treated: 27 responded to psycho-sexual therapy; 3 received testosterone with benefit; 133 had a good results from intracavernosal injection of vasoactive drugs; and 6 received a penile prosthesis. Since 1998, 126 patients reported ED (78.3%). Only 78 chose treatment: 24 patients had a satisfactory response to sildenafil (65% with 50 mg and 35% with 100 mg). PGE1 alone or in combination with papaverine and phentolamine produced a good response in 37 patients; 17 patients did not respond to pharmacotherapy; and 5 received a tricomponent penile prosthesis without complications. The side effects of sildenafil and PGE1 therapy were similar to those reported in the literature. CONCLUSIONS: ED is an important problem in male renal transplant recipients. Cultural resistance to treatment is common. However, treatment with sildenafil citrate and intracavernosal self-injection of PGE1 are well accepted, and prosthetic devices may help in resistant cases.     

Sildenafil in the treatment of sexual dysfunction in spinal cord-injured male patients

OBJECTIVES: The aim of this study was to evaluate the efficacy and safety of sildenafil in the treatment of erectile dysfunction (ED) in spinal cord-injury (SCI) patients. Moreover, we looked for neurological conditions permitting therapeutic success and for the ideal dose needed to achieve sufficient erections. METHODS: 41 SCI patients were prospectively examined. Sexual dysfunction was assessed by means of anamnesis, the International Index of Erectile Function (IIEF) questionnaire, and neurological examination. Psychogenic erection capacity was tested by audiovisual stimulation and reflexive erection using a vibrator device. Neurophysiological recordings and cystomanometry were performed in parallel to clinical examinations. Neurophysiological recordings included sympathetic skin responses (SSR), pudendus somatosensory evoked potentials (pSSEP), and bulbocavernous reflex (BCR). Urodynamics aimed at classifying the neurogenic bladder dysfunction (upper motoneuron lesion versus lower motoneuron lesion). Intracavernous injection tests with PGE1 were performed in all patients to exclude major organic disease. 50 mg sildenafil was first given 3 times. Thereafter, the doses were adapted according to patients' reports. RESULTS: Clinically, 28 subjects preserved either reflexive erections (24) or psychogenic erections (4), 11 had both types and only 2 presented with a complete loss of erection. 38 patients (93%) had a positive response to sildenafil and reached a penile rigidity sufficient to permit sexual intercourse. 3 patients dropped out because of non-response despite having increased the dosis up to 100 mg. 22 patients (58%) showed functional erections 1 h after 50 mg sildenafil, whereas 14 (37%) required higher doses of 75-100 mg. By comparing the IIEF questionnaire scores before and after therapy, there was a significant improvement in erectile function and intercourse satisfaction from 9.2+/-4.4 SD) and 4.5 (+/-2.5 SD) to 25.5 (+/-4.2 SD) and 10.5 (+/-2.1 SD) points, respectively (p<0.05). Nearly 10% (4/41) suffered from side effects such as headache or dizziness. Two of them stopped therapy because of the side effects. At least 36 patients (88%) continue treatment with sildenafil. Absence of both psychogenic (nonsomesthetic supraspinally elicited) and reflexive (somesthetic spinally elicited) erections, confirmed by urodynamical and electrophysiological findings (SSR perineum, BCR and pSSEP), seems to exclude a successful treatment. In contrast, SCI male patients with preserved function of at least one component of the erection phenomenon (psychogenic/reflexive) responded well to sildenafil and the dose required to achieve erections sufficient for sexual intercourse did not differ between the two groups. CONCLUSIONS: Sildenafil proves to be a valuable and safe therapeutic management in ED of SCI patients. Therefore, patient acceptance and satisfaction are high. The most common dose required to achieve a satisfying erection is 50 mg. The efficacy of sildenafil depends on sparing of either sacral (S2-S4) or thoracolumbar (T10-L2) spinal segments which, in this study, have been shown to be of relevance in mediating psychogenic erections in male SCI patients. Complete disturbance of any neurogenic impulses excludes successful treatment.     

Specific aspects of erectile dysfunction in psychiatry

The participation of the psychiatrist in the management of erectile dysfunction (ED) is focused on three types of patients based on the origin of the dysfunction: (1) patients with functional or psychogenic ED, (2) patients with mixed, organic psychogenic ED, and (3) patients with ED and active psychopathology. The second group is influenced by three psychological factors: perpetuating factors, aggravating factors, and accompanying factors. The main psychopathological disorders that interfere directly with the erectile mechanism are depressive disorders (18-35%), anxiety disorders (37%), obsessive-compulsive disorder, psychotic disorders (46-47%), and the antipsychotic medications used to treat these disorders. The diagnostic proposal includes psychological and sexologic evaluation and differential diagnosis. The therapeutic proposal includes the basic principles of sex therapy in the model of behavioral-cognitive therapy (eg, prohibition of intercourse, sensate focus, voluntary loss of erections, no expectations about response), pharmacological therapy (eg, sildenafil, intracavernous injection of vasoactive drugs), and a combination of both therapies.     

他达拉非治疗勃起功能障碍的疗效和安全性临床观察(附80例报告)

目的:观察他达拉非对勃起功能障碍(ED)患者临床有效性和安全性。方法:采用自身对照研究方法。80例ED患者服药前后分别接受性视频刺激加实时阴茎硬度测试仪(R igiscan)监测,比较服药前后阴茎头、根部胀大周径,勃起硬度,持续时间的变化。结果:患者服药前后阴茎勃起头、根部硬度,持续时间比较差异有显著性(P<0.05);心理性ED患者比器质性、混合性ED患者提高更加显著(P<0.01)。他达拉非对ED患者的总有效率为82.5%,对心理性、器质性、混合性的ED有效率分别为92.3%、68.7%、58.3%。心理性ED患者的显效率与器质性、混合性ED患者相比差异显著(P<0.05);药物相关的不良事件(头痛头晕11例,消化道不适8例,面色潮红5例,肌肉疼痛2例)多为轻度,且可以自行缓解,不需处理。结论:他达拉非明显改善大多数ED患者勃起功能,不良反应较少,耐受性好。     

Is sildenafil citrate an alternative agent in the evaluation of penile vascular system with color Doppler ultrasound?

IINTRODUCION: The ideal diagnosis and therapeutic agent for erectile dysfunction (ED) would be an oral drug taken prior to color Doppler ultrasound (CDU) examination and sexual intercourse. In the present study we have investigated if the efficacy of oral sildenafil is optimal in the diagnosis of underlying pathology of ED. MATERIAL AND METHODS: The study group comprised of 41 patients with ED. Firstly, all patients underwent CDU examinations after the combined intracavernosal injection of 60 mg of papaverine and sexual stimulation (CIS). Secondly, these patients were examined after taking 50 mg of oral sildenafil citrate combined with self-manual and visual sexual stimulation. RERSULTS The differences of peak systolic velocity values were statistically significant between CIS and sildenafil (right: 40.7 +/- 2.9 vs. 28.7 +/- 3.3; left: 41.2 +/- 3.3 vs. 25.7 +/- 2.4; p < 0.001) in patients with normal penile vascular system. However, end-diastolic velocity and resistance index values were not significant between the same groups. In addition, there were not significant differences for peak systolic and end-diastolic blood flow velocities and resistances index with CIS and sildenafil in cases with vasculogenic ED. CONCLUSIONS: Sildenafil citrate plus visual sexual stimulation is not reliable as CIS to make accurate interpretation of penile vascular status using CDU. On the other hand, in some cases suspected of psychogenic ED after detailed sexual history, sildenafil might be tried as an initial step of the functional evaluation with CDU in order to prevent prolonged erection risk with intracavernosal injection of vasoactive agents.     

夜间生物电阻抗容积测定对勃起功能障碍的诊断

目的:探讨夜间生物电阻抗容积测定(NEVA)在诊断勃起功能障碍(ED)中的应用价值。方法:对临床怀疑ED的100例患者进行NEVA测定。其中58例怀疑血管性ED,将该测定与阴茎海绵体造影联合彩超检查进行比较。结果:10例糖尿病性ED中有2例夜间阴茎勃起(NPT)正常,2例为动脉供血不足,6例无NPT。4例内分泌性ED患者中,2例NPT正常,2例无NPT。20例心理性ED的患者中,16例NPT正常,1例为动脉供血不足,3例无NPT。58例怀疑血管性ED的患者中确诊者有30例,其中18例为动脉性,12例为静脉性,非血管性ED28例。而应用NEVA发现在30例血管性ED中6例NPT正常,28例非血管性ED中4例NPT异常。8例外伤性ED中,2例腰椎骨折患者的NPT表现为轻度动脉供血不足;3例骨盆骨折患者中2例NPT正常,1例无NPT;3例骨盆骨折并发-后尿道断裂的患者,2例NPT正常,1例NPT提示动脉供血不足。结论:NE-VA对临床上怀疑心理性ED和血管性ED的诊断有较好的参考价值。