Ventilation/Perfusion Mismatch in Septic Pulmonary Emboli From Pacemaker Infection

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A 40-year-old man with type 2 diabetes and a heart pacemaker type DDD-R was hospitalized with a 2-day history of fever, pleuritic pain, dyspnea, and hemoptysis. Ventilation/perfusion scintigraphy (V/P) was done to exclude pulmonary embolism (PE). It showed multiple bilateral mismatched perfusion defects secondary to septic pulmonary embolism from an infected pacemaker lead placed in the right atrium. Septic pulmonary embolism (SPE) should be considered in the differential diagnosis of ventilation/perfusion mismatches.

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