西地那非治疗患有心血管疾病的男性勃起功能障碍患者的疗效和安全性

男性心血管疾病患者较一般人群更易患勃起功能障碍(ED),因为此两种疾病的诱发因素相同,而且一些心血管疾病治疗药物的不良反应就是ED。对于合并心血管疾病的ED患者,西地那非是否像普通人群中所证实的一样有效而安全呢?Olsson AM等人在一项研究中评价了西地那非治疗合并心血管疾病的ED患者的疗效和安全性[Int J Clin Pract,2001,55(3):171-176]。他们让正在服用β受体阻滞剂、血管紧张素转换酶抑制剂、钙离子拮抗剂或联合用药而未用硝酸甘油治疗的ED患者接受口服西地那非治疗。结果显示,患者接受西地那非治疗后,国际勃起功能问卷中评…     

阴茎勃起障碍患者对西地那非用药依从性的研究

目的了解阴茎勃起功能障碍(ED)患者对西地那非用药的依从性以及健康教育对依从性的影响。方法216例ED患者随机分为健康教育联合药物组(甲组)和药物组(乙组),疗程2月。分别对治疗前、治疗期间、治疗后的依从性进行评价。结果216例患者中,117例(54.2%)愿意接受西地那非治疗,甲组的接受率显著高于乙组(69.6%:36.6%;P<0.001)。这117例在治疗期间的依从率为57.3%,两组比较有显著性差异(66.3%:37.8%;P<0.001)。治疗2月后,31.6%的患者表示愿意继续接受西地那非治疗,甲组的接受率显著高于乙组(37.5%:18.9%;P<0.05)。认为疗效不理想、担心药物的不良反应和经济原因是影响依从性的主要因素。结论ED患者对西地那非治疗的依从性差,健康教育有助于改善依从性。     

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进展

自1998年全球上市以来,西地那非治疗勃起功能障碍(erectiledysfunction,ED)积累了2千3百万患者的的临床应用经验,证明是有效的和安全的。本文对西地那非的作用机制、代谢过程进行回顾,对西地那非用于ED诊断、连续服用可治愈ED、规范性治疗、联合用药治疗ED、合并其他疾病时的治疗用药、循序渐进的ED治疗方案以及对视力影响的安全性等问题进行综述。     

对患者充分的用药指导和有效随访可提高西地那非有效率

为探讨在临床应用中影响西地那非治疗勃起功能障碍(ED)效果的因素。Hatzichristou D等筛选了100名对西地那非无反应的患者(平均年龄59±14．4岁,平均ED病史5．5±6．4年)进行研究。详细询问所有患者的用药史和性生活史,要求他们填写IIEF问卷和既往西地那非使用情况的问卷。如果患者既往未得到充分的用药指导,那么将教授其如何正确使用西地那非并且要求其在家中至少再服用4片万艾可。之后随访时重新评价药物疗效。结果,IIEF中勃起功能的平均     

正在服用多种抗高血压药物的ED患者使用枸橼酸西地那非的随机对照试验

高血压与ED有着诸多共同危险因素,因此男性高血压患者合并ED的比较常见。而高血压患者往往长期服用多种抗高血压药物治疗,对于此类患者,治疗ED的一线药物西地那非的疗效和安全性如何呢?Pickering TG等人进行的一项随机、对照试验给我们带来了一些经验。他们对568名,正在使用两种或两种以上抗高血压药物的ED患者,随机给予西地那非(n=281)或安慰剂(n=287)治疗。6周后,所有患者继续使用西地那非治疗6周。主要疗效评价指标是国际勃起功能指数(IIEF)中的第3和第4个问题(Q3、Q4)(勃起和插入的频率),次要评价指标是关于勃起和性交改善的2个…     

西地那非致阴茎异常勃起2例报告

枸椽酸西地那非(商品名:万艾可)自1998年上市以来,全球已有超过2300万ED患者服用并取得了较好的疗效,目前已成为公认的治疗ED的一线药物。西地那非因其良好的疗效和安全性以及极少出现不良反应而被广大患者所接受,即使随着其他类型磷酸二脂     

西地那非治疗2型糖尿病患者勃起功能障碍疗效分析

目的 评价西地那非治疗2型糖尿病(DM)患者勃起功能障碍(ED)的临床疗效.方法 门诊筛查ED患者,符合入选标准及排除标准的ED并伴有2型DM患者42例作为实验组,另于门诊选择同期无DM的单纯ED患者40例作为对照组.按需给予西地那非治疗,3个月后随访,完善疗效评价量表.结果 实验组患者用药后IIEF-5评分,显著高于用药前两者比较差异有统计学意义(P<0.01).全球疗效问题阳性答复百分率为76.2%.与对照组患者相比差异无统计学意义(P>0.05).实验组患者按糖化血红蛋白水平(HbAlc)及DM病程(D)分为4组,其中HbAlC>7,D>5年组患者用药后IIEF-5评分为(16.00±0.82),用药前为(13.14±3.53),用药前后比较,差异具统计学意义(P<0.05).GEQ阳性答复率为42.9%,与对照组相比,差异具统计学意义(P<0.05).结论 西地那非治疗2型DM患者伴ED疗效确切.但伴有DM并发症的ED患者,效果欠佳.     

勃起功能障碍的影响以及西地那非的治疗作用

为研究勃起功能障碍(ED)对患者的影响,及探索应用西地那非(万艾可)的治疗作用。Tomlinson JM等应用半结构式采访形式进行了探索性定性研究。在NHS医院男性健康门诊调查了40位本年内因ED就诊的患者。通过探索性询问定性的方法考查ED对于患者的影响,及他们对西地那非的期望疗效,药物治疗对于患者及其性伴侣关系的影响。结果显示,ED使所有患者都产生了严重的苦恼,影响他们的自尊和性伴侣关系。西地那非,如     

ED与LUTS药物治疗的相关性研究

目的探索、研究勃起功能障碍(ED)和下尿路症状(LUTS)在药物治疗方面是否存在相关性。方法本组研究对象80例病人均患有ED和LUTS,分为3组,每例研究对象在初诊时,必须填写IIEF-5、IPSS评分表,作为研究开始的基线。A组服用两地那非,B组服用多沙唑嗪控释片,C组联合应用西地那非和多沙唑嗪控释片。用药6个月后再次填写IIEF-5和IPSS评分表以作对比。用方差分析检验方法,进行用药前后数据统计学分析。结果3组治疗前后IIEF-5、IPSS评分变化差异均有编者计学意义,C组(联合用药组)变化最大(P<0.001)。结论ED与LUTS相互影响,ED患者LUTS发生率明显升高,而LUTS患者的ED危险性亦显著增加。西地那非可显著改善ED患者合并的LUTS症状,多沙唑嗪可改善LUTS患者的性功能;西地那非联合多沙唑嗪治疗ED、LUTS患者具协同作用。     

性活动与心血管疾病

心血管疾病与性活动关系密切。很多心血管疾病可以影响性功能 ,导致性功能障碍 ,这是长期困扰很多男性的问题。万艾可 (西地那非 )的问世将使这一状况大为改善。现有资料表明万艾可是一种高度安全有效的口服药物 ,心血管副作用很小。若能合理使用 ,可显著改善性功能。另一方面 ,性活动虽为心血管事件的危险因素之一 ,但对心肌梗死影响很小 ,然伴有心绞痛或心力衰竭时仍应注意。分级运动试验有助于评价性活动的安全性。病人遵循一定的康复程序 ,可逐步恢复性功能 ,从而实现真正意义上的心脏病康复     

西地那非治疗合并勃起功能障碍的早泄病人的临床观察

目的 :评价枸橼酸西地那非对合并勃起功能障碍 (ED)的早泄病人的临床疗效和安全性。　方法 :45例诊断为合并ED早泄病人 ,以西地那非片可调整用药方案治疗 1～ 3个月。以阴道内射精潜伏期及配偶性交满意度来评价早泄治疗效果 ,并评估ED的总体疗效和治疗满意度 ,比较治疗前后的国际勃起功能指数评分 5 (IIEF 5 )。　结果 :早泄改善者共 2 7例 ,有效率为 6 0 %。勃起功能改善者共 40例 ,改善率为 88.88%。 2 7例早泄有效者均为 5 0mg西地那非改善了勃起功能的病人 ,且满意率为81.48%;18例早泄无效者中ED治疗满意率仅为 5 .5 6 %。在早泄有效者和无效者间比较其治疗前、后IIEF 5评分及增加值 ,差异均有显著性 (P <0 .0 0 1)。不良反应共 9例(2 0 %) ,均为轻度或中度 ,未经特殊处理即自行缓解。　结论 :对合并ED的早泄病人 ,枸橼酸西地那非片能安全有效地改善其勃起功能 ,如获得满意疗效多能使病人早泄得到改善。     

Prevention of Right Heart Failure After Left Ventricular Assist Device Implantation by Phosphodiesterase 5 Inhibitor

Right ventricular (RV) function immediately after left ventricular assist device (LVAD) implantation is a crucial prognostic factor. RV failure is linked to increased mortality and worse outcome. A phosphodiesterase 5 inhibitor, sildenafil, was shown to decrease pulmonary vascular resistance and pulmonary artery pressure post‐LVAD. We report on a series of heart failure patients, and the effect of sildenafil on the incidence of RV failure after LVAD implantation. We retrospectively analyzed the data of end‐stage heart failure patients who underwent LVAD implantation with pulmonary hypertension and RV dysfunction prior to surgery. Patients were divided into two groups; group 1: patients who received sildenafil perioperatively, and group 2: patients who did not receive sildenafil. Hemodynamic and echographic data were collected before and after surgery. Fourteen patients were included, 8 patients in group 1 and 6 in group 2. Sildenafil was administered with a mean dose of 56.2 ± 9.4 mg in group 1 and was able to significantly reduce right heart failure incidence, and to demonstrate a significant reduction in pulmonary vascular resistance, pulmonary artery pressure, transpulmonary gradient, and a significant increase in cardiac output. In conclusion, sildenafil seems to have a promising role perioperatively in preventing acute RV failure postsurgery in patients with RV dysfunction and pulmonary hypertension, requiring LVAD therapy.     

西地那非治疗勃起功能障碍无效的原因分析及治疗对策

目的 分析按需口服西地那非治疗勃起功能障碍(ED)无效原因并制定治疗策略.方法 2009年1-12月因ED就诊、正确服用西地那非100 mg、至少4次无效的患者126例.采用国际勃起功能指数调查表5个简化问题(IIEF-5)评分、实时勃起功能检测、血清睾酮检测、阴茎多普勒超声检查评估ED治疗无效的原因,患者进行充分的性教育,接受每晚西地那非50 mg治疗.采用IIEF-5评分和性生活日记问题2和3评价再次治疗后的效果.结果 126例ED患者中心理性ED41例,合并睾酮水平低下39例,糖尿病性ED 28例,血管性ED 18例.经过每日小剂量西地那非治疗4周,治疗前后IIEF-5评分分别为(12.3±2.9)分和(18.8±4.4)分,差异有统计学意义(P＜0.05).成功完成性生活者78例,有效率61.9%.结论按需口服西地那非治疗无效的患者经过充分的性教育、长期小剂量治疗后,大部分患者对西地那非治疗仍然有效.

Abstract：

Objective To assess the causes of sildenafil failure and the feasibility of successfully rechallenging non-responding patients. Methods A total of 126 consecutive erectile dysfunction (ED) patients from Jan 2009 to Dec 2009 who claimed poor response to sildenafil (sildenafil 100 mg on demand, at lease 4 epiodes) were enrolled into the study. All patients received sexual reeducation and were treated with sildenafil, taken on a daily dose of 50 mg for 4 weeks. The International Index of Erectile Function-5 (IIEF-5), Rigiscan, serum testosterone or penile Doppler were used to evaluate ED and the cause of on-demand sildenafil failure. End point efficacy of rechallenging was evaluated using the IIEF-5 and the sexual encounter profile (SEP) 'Were you able to insert your penis into your partner's vagina?' and 'Did your erection last long enough to achieve successful intercourse?'. Results The recruited patients comprised of 41 cases with psychological ED, 39 cases with hypogonadism ED, 28 cases with diabetes mellitus ED and 18 cases with vascular ED. Compared with pretreatment and on-demand sildenafil baseline, daily administration of sildenafil significantly enhanced all efficacy outcome variables. The IIEF-5 was significantly improved after daily sildenafil (12.3 ± 2.9 vs18. 8±4.4, P＜0.01), 78 patients responded to daily sildenafil. The overall salvage rate was 61.9%(78/126). Conclusions Sexual reeducation and daily administration of sildenafil may be able to salvage many patients with ED who were sildenafil non-responders.     

Management of sildenafil treatment failures

PURPOSE OF REVIEW: Although oral type 5 phosphodiesterase inhibitors are considered as first-line therapy for the majority of causes of erectile dysfunction, because of their high efficacy, ease of use, and acceptable safety profile, there are some who fail to respond, mainly because of end-organ failure. This communication reviews the management of sildenafil failures in light of recent advances. RECENT FINDINGS: Sildenafil failures can be attributed to either lack of efficacy or side effects; issues may involve the physician, patient, and his partner. Physicians may contribute to sildenafil failure and discontinuation because of inadequate instructions, lack of adequate follow-up, suboptimal dosing, lack of adequate trial, and insufficient clarification about safety issues. Studies have demonstrated that progression of endothelial dysfunction and diminished cavernosal smooth-muscle content are recognized organic factors which cause end-organ dysfunction and ultimately treatment failure. SUMMARY: Proper counseling, medication optimization, and modifying associated risk factors can provide success in men who had initially failed sildenafil therapy for erectile dysfunction. Other treatment modalities that may be considered when sildenafil failure occurs include vacuum devices, intraurethral, and intracavernosal administration of vasoactive drugs alone or combined with sildenafil. Penile prosthesis implantation is considered as a last resort, if all first-line and second-line therapies fail.     

Efficacy of sildenafil on erectile dysfunction of newly-weds

To explore the efficacy of sildenafil on erectile dysfunction (ED) of newly-weds, the author studied 60 outpatients within a month of marriage, who suffered from sexual intercourse (SI) failure caused by ED and showed no improvement after receiving sex education and psychological consultation. The patients were given oral sildenafil, 100 mg for the first and second times, 50 mg for the third and fourth times, no more than once every day, with a 1- to 3-day break between every two times. Four times of sildenafil administration formed one course of treatment. Sildenafil was taken 1 h before SI and was aided with adequate sexual stimulation. The rates of successful SI due to improved erection during and after a course of sildenafil treatment were 93.3% (56/60) and 85% (51/60), both P  > 0.05. In the groups with one and more than one SI failure the successful SI rates after a sildenafil treatment course were 93.1% (27/29) and 77.4% (24/31), both P  > 0.05. Oral sildenafil with psychological therapy in the treatment of ED of newly-weds proves to be effective in restoring the patients' sexual function and relieving their mental pressure or stress.     

Sildenafil improves quality of life in men with heart failure and erectile dysfunction

Patients with congestive heart failure (CHF) have specific factors that enhance the risk for erectile dysfunction (ED), such as low cardiac output and the use of drugs with vasodilator effect. ED can negatively affect interpersonal relationships and self-esteem, with significant impact on the quality of life. We hypothesized that the improvement of the sexual dysfunction would enhance the quality of life of individuals with systolic heart failure. This is a prospective study of 12 male CHF patients using a fixed dose of sildenafil during 1 month. Patients were included if they had left ventricular ejection fraction lower than 40% documented by echocardiography and International Index of Erectile Function (IIEF) score lower than 21. The effect of sildenafil in quality of life was evaluated by the Minnesota questionnaire. Improvement in ED was assessed using the IIEF. The mean IIEF5 score was 9.6 (+/-3.8) before the use of sildenafil and 19.3 (+/-4.3) after sildenafil (P = 0.0001). The mean Minnesota score was 28.75 (+/-21) before treatment and 12.75 (+/-10.1) after the intervention (P = 0.012). In conclusion, the sexual function improvement provided by sildenafil enhances quality of life in individuals with systolic heart failure.     

Efficacy of oral sildenafil in hemodialysis patients with erectile dysfunction

The aim of this study was to evaluate the efficacy and safety of oral sildenafil to treat erectile dysfunction (ED) in chronic renal failure in patients on hemodialysis (HD). A double-blind, randomized, placebo-controlled study of oral sildenafil (50 mg) administered as required in HD patients with ED was designed. Patients on HD for at least 6 mo and who had a stable relationship with a female sexual partner were included. Patients older than 70 yr with penile anatomic abnormalities, cirrhosis, diabetes, angina, severe anemia, and those who were on nitrate treatment or with a recent history of stroke or myocardial infarction were not included. The International Index of Erectile Dysfunction (IIEF) was employed to evaluate ED and treatment response. Forty-one patients were evaluated (21 received placebo, and 20 sildenafil). Baseline clinical and demographic parameters were similar in both groups. Sildenafil was associated with improvement in the score of all questions and domains of the IIEF, except those related to sexual desire. Using the erectile function domain to evaluate primary efficacy, improvement was observed in 85% of the sildenafil patients compared with 9.5% of placebo patients. Sildenafil use resulted in normal EF scores in 35% of sildenafil patients. Sildenafil was well tolerated. Headaches and flushing occurred in both groups. Dyspepsia was reported by two patients in the sildenafil group. In conclusion, oral sildenafil seems to be an effective and safe treatment for ED in selected patients with chronic renal failure on hemodialysis.