Related Experiment Video
Updated: May 27, 2026

Treatment Model for Young Patients with Psychogenic Erectile Dysfunction and Resultant Infertility
Published on: May 30, 2025
Moderate/severe erectile dysfunction in patients with antiphospholipid syndrome
A Lopes Gallinaro1, C A Silva, C N Rabelo
1Rheumatology Division, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Brazil.
Antiphospholipid syndrome (APS) patients frequently experience erectile dysfunction (ED), with nearly 50% reporting moderate to severe symptoms. This sexual dysfunction is associated with a history of arterial events and longer disease duration in APS patients.
Area of Science:
- Reproductive Medicine
- Rheumatology
- Immunology
Background:
- Antiphospholipid syndrome (APS) is a rare autoimmune disorder associated with an increased risk of thrombosis.
- Sexual dysfunction, particularly erectile dysfunction (ED), can significantly impact the quality of life for patients with chronic diseases.
Purpose of the Study:
- To investigate the prevalence and characteristics of sexual dysfunction in male patients with antiphospholipid syndrome (APS).
- To compare sexual function between APS patients and healthy controls using the International Index of Erectile Function (IIEF).
Main Methods:
- A case-control study involving 11 male APS patients (Sapporo criteria) and 22 age- and race-matched healthy controls.
- Evaluation of demographic data, clinical history, medication use, and antiphospholipid antibodies.
- Self-administration of the Brazilian version of the validated International Index of Erectile Function (IIEF) questionnaire.
Main Results:
- Erectile dysfunction (ED) was significantly more prevalent in APS patients (45.5%) compared to controls (4.5%, p = 0.0096), with a higher incidence of moderate to severe ED (p = 0.0081).
- APS patients reported lower overall IIEF scores (p = 0.019), with significant reductions in erectile function (p = 0.005) and intercourse satisfaction (p = 0.009).
- In APS patients with ED, there was a higher occurrence of arterial thrombotic events (100% vs. 16.7%, p = 0.0152) and longer disease duration (12 vs. 5.5 years, p = 0.031).
Conclusions:
- This study demonstrates a high prevalence of moderate to severe erectile dysfunction in APS patients, suggesting a significant impact on sexual health.
- The findings link ED in APS to a history of arterial thrombotic events and prolonged disease duration.
- Further research is warranted to explore the underlying mechanisms and potential therapeutic strategies for ED in APS.
Related Concept Videos
Treatment for Pulmonary Arterial Hypertension: Phosphodiesterase Inhibitors
Among the PDE5 inhibitors, sildenafil (Revatio) stands out as a competitive and selective inhibitor. It operates by elevating cellular levels of cGMP and augmenting signaling through the cGMP-PKG pathway, promoting vasodilation. Upon oral...
Effect of Hepatic Disease on Pharmacokinetics: Dose Adjustments Due to Hepatic Impairment
Peripheral Artery Disease III: Interprofessional Care
Treatment for Pulmonary Arterial Hypertension: Prostacyclin Receptor Agonists
These agonists bind to the IPR receptor situated on the plasma membrane of the pulmonary artery smooth muscle cells. This binding triggers a cascade of reactions known as the GS-AC-cAMP-PKA pathway. This pathway results in the relaxation of smooth muscle...
Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation
Atherosclerosis III: Management
