Key result
The pulmonary vein stump created after lung lobectomy can serve as a source of thrombus formation and subsequent cerebral infarction even in the long-term postoperative phase.
Why the study?
Assessment of pulmonary vein stump thrombus and subsequent cerebral infarction after a long-term postoperative course following lung lobectomy remained unreported.
Case Report (n=2)
No
The pulmonary vein stump should be investigated as a potential embolic source using transesophageal echocardiography in patients presenting with cerebral infarction even long after lung lobectomy.
May warrant TEE evaluation of pulmonary vein stump in late post-lobectomy stroke; hypothesis-generating and requires confirmation.
The vein stump created after lung lobectomy has been reported to cause thrombus and subsequently cerebral infarction. However, its assessment after a long-term postoperative course remains unreported. The pulmonary vein stump is a structure near the left atrial appendage; therefore, such patients may be at a constant risk of thrombus formation. We herein report two cases of cerebral infarction associated with lung lobectomy. Transesophageal echocardiography revealed mobile thrombi in the pulmonary vein stump. Both patients had cancer recurrence, and hypercoagulability may have contributed to thrombus formation. This vein stump should be investigated as an embolic source, even after a long postoperative duration.
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Kobayashi et al. (2023) conducted a case report in Cerebral infarction after lung lobectomy (n=2). Lung lobectomy (pulmonary vein stump) was evaluated on Cerebral infarction. The pulmonary vein stump created after lung lobectomy can serve as a source of thrombus formation and subsequent cerebral infarction even in the long-term postoperative phase.
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