Erectile Dysfunction (ED): Causes, Diagnosis, and Treatment Options

Previously, 4D-CTA was frequently employed to identify myocardial ischemia and developing venous anomalies brought on by atherosclerotic heart disease (). In an article by Xu et al., they discovered that 4D-CTA was equally as accurate as CDDU in diagnosing arterial ED, with a specificity of 93.9% and an accuracy of 87.7%.

ED Treatment Options

These parameters can be used as a diagnostic method for those who were suspected with ED, but should not be used alone as evidence for the diagnosis of ED. NPT times are one of the reliable methods to distinguish psychological ED from organic ED. In clinical practice, many methods can be used to measure NPT, such as sleep laboratory testing, stamp tests, nocturnal electrobioimpedance volumetric assessment, and the Mercury strain (Zou et al., 2019). However, these methods have many obvious drawbacks such as being time-consuming, the inability to objectively analyze the causes and only arrive at yes and no results, and the possibility of other reasons affecting the test results during the test (). invented Rigiscan, a portable device that measures penile circumference, axial and circumferential dilation rates, penile erection frequency, duration, and penile stiffness ().

Surgery For Erectile Dysfunction

found that the erection duration obtained by Rigiscan can be used to distinguish between arterial and venous ED, with a sensitivity of 81.4% and a specificity of 100% at the cutoff value of 12.5 min while predicting venous ED (Zhang et al., 2020). However, whether NPT times measured by Rigiscan are reliable in distinguishing psychological from organic ED remains debatable (). Some researchers believe that this method has many influencing factors, difficult to repeat, and increases the economic burden. Moreover, it can only make a simple distinction, and cannot identify the etiology of ED (). found that oral Phosphodiesterase inhibitor-5 (PDEi-5) concomitant with audiovisual stimulation, using Rigiscan to objectively assess penile swelling and tonicity, was a better way to differentiate between psychogenic and organic ED (Wang et al., 2018a). The causes of ED are diverse, including arterial, venous, neurogenic, psychogenic, and medically induced injuries, which requires the availability of screening tools for each cause.

Invasive tests such as PPDU and Penile cavernosography, even if they are less traumatic to the patient, still add to the patient’s psychological burden and naturally have an impact on the diagnosis; other non-invasive tests are expensive and add to the patient’s financial burden. For the above-mentioned examination methods, cenforce 100 uk the author prefers dual-energy CT.

• Medications like PDE5 inhibitors improve erectile performance by increasing blood flow.
• Regular exercise enhances cardiovascular health, which is vital for erectile function.
• Managing stress and mental health issues can significantly improve ED symptoms.
• Alternative therapies such as acupuncture may provide relief for some men.
• Avoiding excessive alcohol consumption can help prevent or reduce ED symptoms.
• Addressing underlying health conditions like diabetes or hypertension is crucial.
• Communicating openly with partners can reduce performance anxiety and improve intimacy.

First, it is a non-invasive examination method.

• Sex education for men
• Understanding erectile physiology
• Normalizing sexual function
• Masturbation and ED
• Sexual satisfaction goals
• Foreplay and arousal techniques
• Communication skills training
• Reducing performance pressure
• Exploring intimacy beyond sex
• Libido and ED connection
• Sexual health education resources

This ensures that the patient can face the examination with a relatively calm state of mind and will not have much influence on the accuracy of the examination results. Secondly, dual-energy CT takes less time, shortens the patient’s hospitalization period, and increases the patient’s medical compliance. Finally, the accuracy and sensitivity of this test are high, which can accurately analyze the patient’s lesion site and give clinicians more precise guidance on the direction of treatment.

2 Pathophysiological mechanism

Patients will inevitably experience tension and anxiety during the examination, which will lead to large errors in the examination results (). It is these limitations that contribute to the high false positive rate of this inspection method (). Selective IPA is a reliable and effective method for the diagnosis of arterial ED because it can show the morphological characteristics of the terminal branches of the internal pudendal artery (Wang et al., 2019a). It can also help us to locate arterial lesions and assess the arterial blood supply by DSA technology (Wang et al., 2019a). However, this examination is an invasive examination, which may cause bleeding at the puncture site, pain to patients, and even arterial perforation, etc.

What Is Erectile Dysfunction (ED)?

Moreover, the addition of DSA technology will prolong the examination time and increase the patient’s cost, making this technique rarely used in clinical practice. In recent years, dual-energy CT angiography has been more and more commonly used in the diagnosis and monitoring of male diseases (Rajiah, 2020). Dual-energy CT angiography is a novel, non-invasive and effective method to evaluate the penile arterial system, and shows high sensitivity and specificity in the diagnosis of arterial ED (Wang et al., 2022a). used CTA and multi-slice CT for the diagnosis of ED and compared with DSA, proving their high accuracy and superior to DSA in the assessment of internal artery stenosis (). In addition, compared with DSA, CTA is relatively less invasive and cheaper. Therefore, we believe that the future development direction of diagnostic technology needs to March in the direction of convenient, affordable, and non-invasive examination.

• Physical examination
• Blood pressure measurement
• Blood tests for hormones
• Urinalysis for diabetes
• Neurological exams
• Vascular health assessment
• Penile Doppler ultrasound
• Psychological evaluation
• Medical history questionnaire
• Identifying underlying causes
• Differential diagnosis process

With the development of image technology, CT imaging technology will be greatly improved, and CT examination is relatively convenient, inexpensive, and non-invasive, which should become the mainstream choice for diagnosing ED in the future.

Other Treatment Options to Cure Erectile Dysfunction

With more advanced imaging technology in the future, CTA can better surpass and replace DSA in the diagnosis of arterial ED. Penile cavernosography has been used to explore the venous system of the penile corpus cavernosum since the 1980s (). Up to now, penile cavernosography has been widely used to evaluate venous occlusive dysfunction in ED organic ED patients, and it has become the gold standard for the diagnosis of venous ED (). Studies have shown that drug-induced cavernosography alone may lead to insufficient priapism, which is misdiagnosed as venous leakage. Dynamic continuous perfusion must be used to induce complete priapism in order to obtain more realistic detection results (Song et al., 2015).

A healthy diet

However, due to the influence of other veins, bones, or cavernous shadows, cavernosography cannot accurately display the target vein and accurately assess the leakage site (Xu et al., 2017a). Furthermore, because cavernosography is more invasive than PPDU, it is not recommended in some cases at which PPDU is sufficient to diagnose venous ED unless surgery or venous embolization is required. The 320-detector dynamic volume CT is composed of 320 detectors with a thickness of about .5 m and a width of about 16 cm along the Z-axis, and the gantry rotation time is 350 m (). Compared with DSA, 4D-CTA is less expensive and less time-consuming, involves no invasive procedures that could result in problems like thrombosis.(; ). 4D-CTA can instentlydisplay the flow of contrast agent in blood vessels following contrast agent injection t, and it can perform continuous volume scanning within a set time, which is used to estimate various conditions of hemodynamics and vessel morphology (; ). Currently, physical methods commonly used to treat ED include Vacuum erectile devices (VED), low-frequency electrical stimulation, low-intensity extracorporeal shock waves, Chinese acupuncture, and other treatment methods. Most VED consist of a shrink ring, a cylinder and a pump powered manually or by battery power ().

It employs negative pressure to dilate the cavernous venous sinus, increase the perfusion of cavernous artery and venous blood, and ultimately achieve the goal of producing penile erection. An external constriction ring is placed at the base of the penis to prevent blood flow during intercourse in order to maintain an erection, but the ring should not be placed for more than half an hour (Yuan et al., 2010; ).

• Lifestyle modifications are often the first step in ED treatment plans.
• Vacuum devices are non-invasive options suitable for many men.
• Pharmacological treatments should be used under medical supervision.
• Psychological support can address performance anxiety and emotional distress.
• Priapism is a potential side effect of some ED treatments; seek medical help if it occurs.
• Combining therapies might increase effectiveness for certain patients.
• Regular follow-up with healthcare providers ensures optimal management.

It is used to promote the recovery of penis function and maintain penis length (). had demonstrated that the erectile response induced by the vacuum erection device may increase the smooth muscle/collagen ratio by decreasing hypoxia-inducible factor-1 and transforming growth factor-1, thereby improving penile blood flow (Yuan et al., 2010; ). In addition, the device can only increase the oxygenation of the corpus cavernosum without the use of a shrink ring. This method can bypass the limitations of oral drugs and directly achieve an artificial erection, but it requires a normal and intact cavernous nerve to produce an erection (; ). Compared to other penile rehabilitation therapies, VED therapy has the advantages of being non-invasive and having fewer systemic side effects (; Sultana et al., 2022) (Figure 2).

Other Treatments for ED

Ultrasound assessment of ED was introduced in 1985 by Lue et al. (), PPDU refers to color Doppler ultrasound combined with injection of intravascular active substances in the corpus cavernosum. The most used vasoactive agents are papaverine alone or a combination of papaverine, phentolamine, and prostaglandin 1 (PGE1) (). The advantage of PPDU is that it enables objective, minimally invasive assessment of hemodynamics at a relatively low cost (). Blood flow to the penis can be assessed by color Doppler ultrasound, which can accurately assess venous leakage.

Table 6. Phosphodiesterase Type 5 Inhibitors for Erectile Dysfunction

Peak systolic velocity (PSV), end-diastolic velocity (EDV), and electrical resistance index (RI) are commonly used to evaluate arterial blood flow by ultrasonography (). According to the standard operating procedures published by the International Society of Sexual Medicine in 2013, PSV is an accurate predictor of arterial disease in ED patients: PSV >30 cm/s and EDV<3 cm/s indicate normal arterial supply, while PSV<25 cm/s indicates arterial insufficiency. Venous occlusive dysfunction was defined as PSV >30 cm/s, EDV >6 cm/s, and RI <.6 (Sikka et al., 2013). Although PPDU can be used to tadacip 20 tablet identify arteriovenous ED, it has some limitations. It is complex, expensive, and censor-dependent; more importantly, the examination requires complete relaxation of the smooth muscle in order to truly reflect the vascular condition, and requires a relatively high volume of drug injection. The study by Sherry A Beaudreau et al. found that the correct use of the device resulted in an erection to complete normal intercourse in 90.7% of patients (49 of 54 patients), all of whom indicated that they would recommend the device to other ED patients.