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Is impotence an arterial disorder? A study of arterial risk factors in 440 impotent men
Insights
Arterial risk factors like diabetes and hypertension significantly increase organic impotence. Evaluating these factors and penile blood-pressure index is crucial for diagnosing impotence.
Area of Science:
- Urology
- Cardiovascular Medicine
- Andrology
Background:
- Impotence, or erectile dysfunction, is a common condition with multifactorial causes.
- Arterial risk factors (ARF) such as diabetes, smoking, hyperlipidaemia (HLP), and hypertension are implicated in vascular health, potentially affecting erectile function.
- Understanding the prevalence of ARF in impotent men is essential for diagnosis and management.
Purpose of the Study:
- To investigate the distribution of four main arterial risk factors (ARF) in a cohort of impotent men.
- To assess the relationship between ARF, penile blood-pressure index (PBPI), and the organic causes of impotence.
- To determine the correlation between the number of ARFs and the likelihood of organic erectile dysfunction.
Main Methods:
- A study involving 440 impotent men (mean age 46.8) was conducted.
- Penile blood-pressure index (PBPI) was measured for all participants.
- Further investigations, including cavernosonography, were performed in 222 men to determine the cause of impotence (organic vs. functional).
Main Results:
- Smoking (64%), diabetes (30%), and HLP (34%) were significantly more prevalent in impotent men compared to the general male population.
- In men with organic erectile dysfunction, arterial lesions were found in 53%.
- A higher number of ARFs correlated with a significantly lower mean PBPI and an increased frequency of organic impotence, reaching 100% with 3 or 4 ARFs.
Conclusions:
- The increased incidence of impotence with age is primarily linked to arteriosclerotic changes in penile arteries.
- Arterial risk factors and PBPI measurement should be prioritized in the initial evaluation of patients presenting with impotence.
- Early identification and management of ARF may play a critical role in preventing or mitigating erectile dysfunction.
Abstract:
The distribution of four main arterial risk factors (ARF) (diabetes, smoking, hyperlipidaemia (HLP), and hypertension) was investigated in 440 impotent men (mean age 46.8) in whom the penile blood-pressure index (PBPI) (ie, the ratio of the lowest systolic pressure in one of the four main arteries of the penis to the systolic pressure in the arm) was measured. In 222 the cause (organic or functional) of impotence was sought by further investigations, such as cavernosonography. 80% of this subgroup had organic impairment of erection. In 53% of these there was evidence of an arterial lesion. Smoking (64%), diabetes (30%), and HLP (34%) were all significantly more common in the 440 impotent men than in the general male population of a similar age. Whenever two or more ARFs were present mean PBPI was significantly lower. The frequency of organic impotence increased from 49% in the absence of any ARF to 100% in patients with 3 or 4 ARFs. It is concluded that increase in the frequency of impotence with age is mainly related to arteriosclerotic changes for the arteries of the penis and that the ARF and PBPI should be evaluated first in any patient complaining of impotence.