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Biomedical subjects

Riichiro Toda

Publications and source records attributed to Riichiro Toda.

3 recordsLinked to original sources

Herpes simplex viral pneumonia after coronary artery bypass grafting.

We report a case of herpes simplex viral (HSV) pneumonia as a post-CABG pulmonary complication in a 70-year-old man. Chest radiography on postoperative day 9, showed a glass-like shadow and pleural effusion in the left lung field, and the man's condition began deteriorating rapidly. Bronchofiberscopy to detect the pathogen and a bronchoalveolar lavage with polymerase chain reaction (PCR) yielded a definitive diagnosis of HSV pneumonia. Once therapy with acyclovir was begun, his condition improved markedly. Our case suggests that 1 viral pulmonary infection should be considered as a possible cause in postoperative cardiac patients with unexplained progressive pulmonary infiltrates, and 2 DNA amplification using PCR is rapid--it can be completed within 1 day--and sensitive and specific in diagnosing such infections.

Acyclovir↗

Surgical treatment of malignant fibrous histiocytoma in the left atrium and pulmonary veins: report of a case.

This report describes the case of a 16-year-old boy who underwent surgical treatment of a cardiac malignant fibrous histiocytoma (MFH). He was admitted to our hospital for exertional dyspnea. An ultracardiogram (UCG) revealed a tumor about 10cm in diameter, in the left atrium. Extirpation of the left atrial tumor, including the part extending into the pulmonary veins, was performed under cardiopulmonary bypass. Histological examination confirmed a diagnosis of MFH. No adjuvant chemotherapy or radiotherapy was given. While there has been no evidence of local recurrence or metastasis in the 9 months since his operation, strict follow-up is being done by UCG and computed tomography. A few reviews of this entity have been reported; however, they have confused autopsy cases with surgical cases. Therefore, we reviewed only the surgical cases of this type of cardiac tumor documented in the literature. According to our review of the literature, this patient is the youngest among the 42 cases of surgically treated cardiac MFH reported to date.

Adolescent↗

Pasteurella multocida endocarditis: report of a case.

The present case involves a 48-year-old male patient who presented with Pasteurella multocida endocarditis associated with preexisting mitral valve stenosis. A mitral valve replacement was successfully performed after 3 weeks of intravenous infusion with antibiotics. Pasteurella multocida is a normal inhabitant of the oral cavity of dogs and cats. Therefore, people who have frequent contact with these animals should be examined periodically for signs of infection.

Endocarditis, Bacterial↗