Analysis of the dataset was carried out using the IBM Statistical Package for Social Sciences version 23.0 (IBM SPSS Corp.; Armonk, NY, USA). One patient discontinued the treatment with the complaint of myalgia, and the study was continued with 28 patients since another patient did not come to the follow-up visit. The mean age of the patients was 53±9 years. The mean duration of ED was 6.8 months.
| Condition | Approval Status | Notes |
|---|---|---|
| Erectile Dysfunction | Approved | Daily use approved by FDA |
| Benign Prostatic Hyperplasia (BPH) | Approved | Approved for BPH symptoms |
| Pulmonary Arterial Hypertension | Approved | In specific formulations |
| Diabetes-related ED | Experimental | Not officially approved for this use |
There were 8 (29%) patients with diabetes and 7 (25%) patients with hypertension. The demographic characteristics and comorbidities of the patients are given in Table 1.
| Parameter | Monitoring Interval | Purpose |
|---|---|---|
| Blood Pressure | Baseline, monthly | Cardiovascular safety |
| Liver Function Tests | Every 3 months | Detect liver impairment |
| Visual Acuity Tests | Annually | Detect retinal side effects |
| Erectile Function Assessment | As needed | Evaluate effectiveness |
We showed statistically significant changes in pre-treatment and post-treatment IIEF-5 scores and penile sensorial EMG findings. Pre-treatment IIEF-5 scores of 13±3 were measured as 19±3 after treatment with tadalafil at a daily dose for 12 weeks (p<0.001).
- Tadalafil daily helps maintain spontaneous sexual activity.
- It can be combined with other ED medications if approved by a doctor.
- Consistent use may improve quality of life for men with ED.
- Regular blood pressure checks are recommended during use.
- Store tadalafil in a cool, dry place away from children.
This improvement was consistent with the literature.
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The demographic and clinical characteristics of all patients were recorded. All patients participating in the study completed the International Index of Erectile Function (IIEF-5) form and underwent penile EMG examination before and after treatment. Patients were divided into two groups as over 50 years old and under 50 years old. A comparative evaluation was made on the effect of age on the outcomes of treatment and penile sensorial EMG. Electrophysiological studies were planned to be performed between 09:00 tadalafil 60mg uk and 12:00, at a room temperature of 23 to 25 °C, in a quiet room with dim light, and with the relaxed and awake patient in the supine position.
Key takeaways
A two-channel electroneuromyography device (Nihon-Kohden-Neuropack, model MEB-2200) was used for recording. Penile sensorial EMG was examined using Clawson’s method. The penis was placed in the concavity of a specially designed Orthoplast penile traction device and stretched to reach its maximum length by pulling from the tip of the glans. A Cunningham incontinence clamp was placed on the glans, and the penis was maintained in tension by holding from the glans. An electroencephalography paste was used for the placement of active and reference steel electrodes. The mean nerve conduction velocities (NCV) in EMG was 35.5 m/sec (33.3-41.2) before treatment, and 38.05 m/sec (34.5-43.6) after treatment (p<0.001). The increase in NCV is the most important finding of penile sensorial EMG showing an increase in penile sensation. Thus, the increase in NCV has been interpreted as an improvement in penile sensation.
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The changes in latency and amplitude values used in the calculation of NCV are given in Table 2. The delta equation (Δ = the amount of change) was created for the IIEF-5 score and penile sensorial EMG findings as post-treatment value minus pre-treatment value.
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The active recording electrode was placed as proximal as possible to the root of the penis. The reference electrode was placed 4 cm above the active electrode. The proximal part of the dorsal penile shaft was stimulated orthodromically with an active electrode and the dorsal glans with a reference electrode (15). Categorical data were presented as number and percentages. Continuous data were evaluated by the Kolmogorov-Smirnov test to verify the normality of the distribution of variables.
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Normally distributed data were presented as mean + standard deviation, while non-normally distributed data were presented as median and IQR (25-75th). An independent simple t-test was used to compare two independent normally distributed data, while the Mann-Whitney U test was used for the comparison of non-normally distributed data. A paired sample t-test was used to compare two independent normally distributed data, while the Wilcoxon test was used for the comparison of non-normally distributed data. Spearman’s Correlation analysis was used to analyze the parameters related to changes in IIEF scores. A p-value of <0.05 was considered statistically significant. Factors that may be related to this change were evaluated.
1. Lean Muscle & Anabolic Signaling
Neither of these two methods alone measures the functions of peripheral sensory nerves. The dorsal nerve of the penis (DPN) is the terminal sensory branch of the pudendal nerve, which carries sensory data from the glans and shaft of the penis (7,8). Sensory and tactile stimulation of the penis play an important role in erectile and sexual function. Interruption of sensory stimulation causes decreased libido, ejaculatory dysfunction, and loss of impotence (9,10). Erection occurs through three different stimuli: Genital stimulation (contact and reflexogenic), central stimulation (non-contact or psychogenic), or stimulation to the central nervous system (night-time) (11).
Some side effects can be serious. If you experience any of these symptoms, call your doctor immediately or get emergency medical treatment:
DPN carries sensory innervation from the penile shaft and glans. Therefore, tactile stimulation has an important role in erection (12). Sensory electromyography (EMG) to DPN showed the early occurrence of sensory disturbances in the distal penis (2). Recently, inhibitors of the phosphodiesterase-5 (PDE-5) enzyme have been the most widely used treatment for ED. Tadalafil is an effective and well-tolerated treatment for ED (13). There was a significant correlation between age and IIEF-5 score and penile sensorial EMG findings. There was a significant correlation between the IIEF-5 score and NCV (r=0.663, p<0.001) and Amplitude (r=0.659, p<0.001). As improvement in IIEF-5 increases, so does improvement in NCV and Amplitude (Table 3).
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Pre- and post-treatment electromyography (EMG) examinations for penile sensation and International Index of Erectile Function (IIEF-5) scoring were performed for each patient. To investigate the effect of tadalafil, used for treating erectile dysfunction (ED) at a daily dose of 5 mg for 12 weeks, on penile sensation. This topic has not yet been studied in the literature yet. Our study demonstrates a quantative increase in penile sensation with the use of tadalafil. Erectile dysfunction (ED) is defined as the persistent or recurrent inability to achieve and/or maintain an adequate penile erection for sexual activity (1,2).
Tadalafil dosage guide: key rules
It significantly affects the quality of life of many male individuals (3). It is also one of the most common sexual health problems, affecting an estimated 18 million men in the ultrasound alone (4). Epidemiological data have shown a high prevalence and incidence of ED worldwide (5). Most men have multiple risk factors for ED, one or more of which may be more predominant, including psychological, neurological, hormonal, arterial, or cavernosal disorders, or a combination thereof (6). Traditional electrodiagnostic studies for men with ED include pudendal somatosensory -evoked potentials and delays in bulbocavernosus reflexes. The mean amplitude value in penile sensorial EMG was 4.47±1.32 before treatment, whereas it increased to 5.07±1.60 after treatment (p<0.015). Additionally, the mean latency value was 2.14±0.42 before treatment, whereas it increased to 2.32±0.38after treatment (p<0.001). The latency and amplitude parameters in the penile sensorial EMG are used to calculate NCV.
- Always follow your healthcare provider’s instructions exactly.
- Tadalafil daily is typically safe when used responsibly.
- Keep track of any side effects experienced and report them.
- Be aware of the signs of serious allergic reactions.
- Never alter your medication regimen without medical advice.
The increase in these values after treatment was interpreted as an improvement in penile sensation.
- Some users may experience dizziness when standing quickly.
- Tadalafil is available by prescription only in most countries.
- Be aware of possible allergic reactions such as rash or swelling.
- Avoid driving until you know how tadalafil affects you.
- Use caution with other medications that affect blood flow.
As a result, it has been shown that the improvement in IIEF-5 provides an improvement in penile sensation (Figure 1).
How Tadalafil Works in the Body
Tadalafil at a dose of 5 mg once daily significantly improves ejaculation and orgasm, sexual intercourse and overall satisfaction, and erectile function (14). In this study, we showed the change in penile sensation in men after treatment with ED. Additionally, this topic has not yet been studied in the literature as far as we know. The inclusion of patients using daily therapy for ED regularly was aimed at a clear assessment of outcomes. This research has a prospective and controlled study design.
Before taking tadalafil,
A signed consent form was obtained from all patients who volunteered to participate in the study. Ethics Committee approval for this study was obtained from the Ethics Committee of Health Sciences University, Antalya Training and Research Hospital (2020-352), and all steps were planned and conducted following the Declaration of Helsinki and its later amendments. Patients who started treatment for ED in the andrology outpatient clinic were referred to the study by the secretariat. We included patients with a history of at least 6 months of ED who did not receive any treatment, patients with normal serum levels of testosterone and luteinizing hormones, and patients who were recommended to use tadalafil for 12 weeks. Patients with a history of hypogonadism, cryptorchidism, varicocele, peripheral neuropathy, uncontrolled diabetes mellitus (hemoglobin a1c >7%), and past and current illicit drug abuse were excluded from the study. Currently, PDE-5 inhibitors are used as first-line therapy in patients presenting with ED. Our literature search did not find any studies reporting normal values of penile sensation during a normal erection.
Safety, Side Effects, and Monitoring
The mean age was 53±9 years. The mean body mass index was 27±2. Before treatment, serum levels of testosterone and LH were within the normal range. There were 8 (29%) patients with diabetes mellitus and 7 (25%) patients with hypertension. The pre- and post-treatment IIEF-5 scores were 13±3 and 19±3, respectively.
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Nerve conduction velocities (NCV) increased from 35.5 m/sec to 38.05 m/sec. Latency values decreased from 2.32 ms to 2.14 ms. There was a statistically significant improvement in IIEF-5 scores and EMG results for penile sensation after treatment (IIEF-5, NCV and latency; p<0.001, p<0.001 and p=0.001, respectively). Our study included 30 male patients who applied to our andrology outpatient clinic with the complaint of ED and were prescribed tadalafil at a daily dose of 5 mg for 12 weeks. Before treatment, serum levels of testosterone and luteinizing hormone (LH) were measured. In our study, we performed sensorial measurements in patients with ED.
- Tadalafil daily can help manage symptoms of pulmonary arterial hypertension.
- It works by relaxing blood vessels in the lungs.
- Dosage for pulmonary hypertension differs from ED treatment.
- Inform your doctor of all medications to prevent interactions.
- Regular check-ins are important for safety and effectiveness.
Penile sensorial EMG can provide valuable additional information in the differential diagnosis of ED, particularly allowing the identification of different neurogenic lesion sites (16).
| User Feedback | Percentage (%) | Common Comments |
|---|---|---|
| Highly Satisfied | 65% | Enhanced spontaneity |
| Moderate Satisfaction | 25% | Mixed results, some side effects |
| Dissatisfied | 10% | Ineffectiveness, side effects |