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      Renal Infarction in a Patient with Pulmonary Vein Thrombosis after Left Upper Lobectomy

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          A 43-year-old male experienced renal infarction (RI) following left upper lobectomy for lung cancer. The patient complained of acute-onset severe left flank pain on the 14th postoperative day. A contrast-enhanced computed tomography (CT) of the abdomen revealed RI by a large wedge-shaped defect in the left kidney. A chest CT scan located the thrombus in the stump (a blind-ended vessel) of the left superior pulmonary vein. Therefore, thromboembolic RI caused by pulmonary vein thrombosis was suspected. Anticoagulation therapy was initiated with heparin and warfarin to treat RI and to prevent further embolic episodes. Two months later, pulmonary vein thrombosis had resolved without the appearance of additional peripheral infarction. This case emphasizes the need to consider thrombus in the stump of the pulmonary vein as a cause of RI.

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          Most cited references 14

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          Idiopathic renal infarction.

          Renal infarction may be an underrecognized disorder. Classical teaching holds that cardioemboli, notably in the setting of arterial fibrillation, are responsible. The expanding use of contrast enhanced computed tomography (CT) in patients with acute abdomen may change the spectrum of renal infarction.
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            Thrombosis in the pulmonary vein stump after left upper lobectomy as a possible cause of cerebral infarction.

            Thrombus in the stump of the pulmonary vein (PV) is not a well-known complication after lung resection, and it has the potential to cause embolism to vital organs. To clarify the frequency, risk factors, and cause of this complication, a retrospective clinical study of patients who underwent lobectomy was performed. The study evaluated 193 patients with primary lung cancer who underwent lobectomy from 2005 to 2011 and contrast-enhanced chest computed tomography (CT) within 2 years after lobectomy. Contrast-enhanced CT was retrospectively interpreted to check for thrombus in the PV stump. The operative procedures were 65 right upper lobectomies, 14 right middle lobectomies, 40 right lower lobectomies, 52 left upper lobectomies (LUL), and 22 left lower lobectomies. Thrombus developed in the PV stump in 7 of the 193 patients (3.6%) after lobectomy. All patients with thrombus had undergone LUL, and 13.5% of those who had undergone LUL developed thrombus. Univariate analyses revealed that LUL and operation time were significant risk factors and that adjuvant chemotherapy was marginally significant. It appears that thrombus may be attributable to the length of the PV stump. Measurement of the length of the PV stump using 3-dimensional CT images of the PV revealed that the stump of the left superior PV was longer than the others. Thrombus in the PV stump occurred in 13.5% of patients after LUL. These findings suggest that contrast-enhanced CT should be recommended for patients after LUL to help identify those with a high risk for thromboembolism. Copyright © 2013 The Society of Thoracic Surgeons. Published by Elsevier Inc. All rights reserved.
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              Transient ischemic attack in a patient with pulmonary vein thrombosis after left upper lobectomy for squamous cell lung cancer.


                Author and article information

                Case Reports in Nephrology and Dialysis
                S. Karger AG
                May – August 2014
                22 May 2014
                : 4
                : 2
                : 103-108
                Departments of aNephrology and bThoracic Surgery, Yokohama Rosai Hospital, Yokohama, and cDepartment of Medicine, Kidney Center, Tokyo Women's Medical University, Tokyo, Japan
                Author notes
                *Kosaku Nitta, MD, PhD, Department of Medicine, Kidney Center, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo 162-8666 (Japan), E-Mail knitta@kc.twmu.ac.jp
                363224 PMC4067727 Case Rep Nephrol Urol 2014;4:103-108
                © 2014 S. Karger AG, Basel

                Open Access License: This is an Open Access article licensed under the terms of the Creative Commons Attribution-NonCommercial 3.0 Unported license (CC BY-NC) ( http://www.karger.com/OA-license), applicable to the online version of the article only. Distribution permitted for non-commercial purposes only. Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug. Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.

                Page count
                Figures: 1, Tables: 2, Pages: 6
                Published: May 2014


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