Evaluation of Erectile Dysfunction and Left Ventricular Diastolic Parameters in Lead Exposed Workers

Area of Science:

• Cardiovascular Physiology
• Environmental Health
• Occupational Medicine

Background:

• Lead exposure is a known cause of vascular diseases via oxidative stress and impaired nitric oxide bioavailability.
• The study investigates the link between lead exposure, left ventricular diastolic function, and erectile dysfunction.

Purpose of the Study:

• To assess the association between lead exposure effects on left ventricular diastolic indices and erectile function.
• To determine if blood lead levels correlate with diastolic dysfunction and erectile dysfunction in lead-exposed workers.

Main Methods:

• 94 lead-exposed workers and 30 healthy controls underwent transthoracic echocardiography for systolic and diastolic function assessment.
• The International Index of Erectile Function Questionnaire (IIEF-5) was used to evaluate erectile dysfunction (ED).
• Blood lead levels (BLL), echocardiographic parameters, and IIEF-5 scores were analyzed.

Main Results:

• Lead-exposed workers showed significantly higher rates of ED (69.1%) and lower IIEF-5 scores compared to controls.
• Echocardiography revealed impaired diastolic function in workers, indicated by lower E/A ratios and higher E/e' ratios and LAVI.
• Blood lead levels correlated with lower IIEF-5 scores, reduced e' wave velocity, and increased E/e' ratio, with BLL being an independent risk factor.

Conclusions:

• Lead exposure is associated with impaired diastolic and erectile function, independent of age and other cardiovascular risk factors.
• Elevated blood lead levels are a significant risk factor for developing both diastolic and erectile dysfunction.