BACKGROUND: Infective endarteritis of the pulmonary artery is an unusual event. While congenital heart disease (CHD) is a risk factor, pulmonary endarteritis as a complication is a rare occurrence especially in the era of antibiotic therapy.
CASE PRESENTATION: We present a case of a 43-year-old female who initially sought consultation due to fever. Physical examination revealed a continuous murmur at the second intercostal space left parasternal border. There was no petechiae or any other skin lesions noted. Transthoracic two dimensional echocardiogram showed eccentric left ventricular hypertrophy with an ejection fraction of 65%. She had a patent ductus arterioscus as well as a bicuspid aortic valve. Further interrogation revealed a vegetation at the main pulmonary artery. Patient was initially started on ceftriaxone and gentamycin. Blood cultures were positive for coagulase negative Staphylococcus aureus. Ceftriaxone was then shifted to vancomycin, which was completed for 28 days.
OUTCOME: Clinical improvement was accompanied by the disappearance of the vegetation and negative blood cultures. Patient was maintained on enalapril and advised closure of the patent ductus arteriosus. She opted medical management for the time being and was discharge stable and improved.
CONCLUSION: Pulmonary endarteritis is an uncommon complication of CHD. A high index of suspicion must prompt careful evaluation, combining clinical, laboratory and echocardiographic modalitites in order to provide early diagnosis and effective treatment.

Human ; Female ; Adult ; Anti-bacterial Agents ; Coagulase ; Ductus Arteriosus, Patent ; Echocardiography ; Endarteritis ; Heart Defects, Congenital ; Heart Valve Diseases ; Hypertrophy, Left Ventricular ; Pulmonary Artery ; Risk Factors ; Staphylococcus Aureus ; Vancomycin

Introduction: Ruptured mycotic aortic aneurysm is a rare and life-threatening condition. An early and proper initiation of antibiotics aside from aneurysmal repair is of paramount importance. The typhidot IgG and IgM may help with this dilemma, especially when the blood culture is negative and during the waiting period for the the aortic sample result. Case: A 47-year-old male Filipino with type 2 diabetes mellitus presented with severe back pain for one month and intermittent fever for three weeks. Complete blood count showed anemia and leukocytosis with predominance of neutrophils. On computed tomography of the aorta, a segmental calcification and wall discontinuity in the right posterolateral wall of the infrarenal abdominal aorta with heterogenous collection of blood in the retroperitoneal region was seen and aortic rupture secondary to mycotic aneurysm was considered. He underwent emergency abdominal aortic aneurysm repair with debridement, antibiotic lavage, aortoiliac grafting, anastomosis and omental packing. The typhidot IgG and IgM test was positive and was given ceftriaxone 2gm/IV every 24 hours for six weeks. Blood cultures did not reveal significant growth of any pathogen. The aortic wall culture showed heavy growth for salmonella species sensitive to ceftriaxone, confirming and guiding the management. He was then discharged improved. Conclusion A mycotic aneurysm secondary to salmonella should be one of the considerations in an adult male diabetic presenting with prolonged fever, abdominal and back pain with or without a tender pulsatile mass. The Typhidot test is an easy and affordable test that allows rapid detection of salmonella infection. Early surgical intervention and antibiotics are the treatment of choice
Aneurysm, Infected ; Salmonella