526 research outputs found
Why does pulmonary vein thrombus predominantly develop after left upper lobectomy?
No full textTadashi Umehara, Koji Takumi, Kazuhiro Ueda, Masami Sato
Why does pulmonary vein thrombus predominantly develop after left upper lobectomy?
Journal of Thoracic Disease 2021;13(1):420-421
http://dx.doi.org/10.21037/jtd-20-341
Why does pulmonary vein thrombus predominantly develop after left upper lobectomy?
No full textTadashi Umehara, Koji Takumi, Kazuhiro Ueda, Masami Sato
Why does pulmonary vein thrombus predominantly develop after left upper lobectomy?
Journal of Thoracic Disease 2021;13(1):420-421
http://dx.doi.org/10.21037/jtd-20-3411journal articl
Special Economic Zones and Economic Corridors
No full textVarious reports show that special economic zones (SEZ) have become a prime catalyst for regional development in developing countries such as China and the ASEAN countries. The SEZ can be defined as a specific geographical region with economic laws that are more liberal than a country's typical economic laws. Many SEZs have characteristics of bonded zones, export processing zone (EPZ) or free trade zones and provide special incentives, including tax exemption or reduction to investors. The purpose of the paper is to enumerate the candidates for SEZ in Cambodia, Laos, Myanmar, and Vietnam (CLMV countries) according to four types: "metropolitan areas," "ports and harbors," "border areas" and "junctions or intersections." The first two types are based on the experience of forerunning ASEAN countries and the latter two are based on the economic corridors of the Greater Mekong Sub region Economic Cooperation Program. The paper concludes by identifying locations for the questionnaire and flowchart approach-based surveys, and presenting country-specific strategies.ASEAN, SEZ, Port, Harbor, Junction, Economic Corridor, CLMV, GMS.
Disaster communication with African American, Black immigrant and refugee communities
No full textprepared by: the Center for Public Service, Mark O. Hatfield School of Government, Portland State University ; Masami Nishishiba, Nhu To-Haynes, Carl Christiansen, Cameron Simmons.Title from PDF title page (viewed on October 19, 2022).This archived document is maintained by the State Library of Oregon as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Includes bibliographical references (pages 26-28).Mode of access: Internet from the Oregon Government Publications Collection.Text in English
Conventional Multi-Planar Reconstruction Imaging Is Insufficient to Determine the Indication for Segmentectomy
No full textPurpose: The diagnostic potential of conventional multi-planar reconstruction (MPR) images, which consist of horizontal, frontal, and sagittal section, in approximating the anatomical distance between tumors and intersegmental planes remains unclear. The aim of the present study was to clarify the validity of decision-making for segmentectomy based on MPR imaging and identify a specific tumor location that is likely to result in the overestimation of the anatomical margin on MPR images.
Methods: The study population included 33 patients who were considered eligible for segmentectomy based on the observation of MPR images, and verified using a commercially available image-analysis software whether the decision-making based on MPR images was indeed correct or not.
Results: MPR image-based assessment resulted in the overestimation of the anatomical margin in as many as 8 (24%) of the 33 patients. Overestimation predominantly occurred in cases involving patients with tumors at certain segments (right S1, right S2, right S3, left S3, and left S4) that had a complex and oblique intersegmental plane.
Conclusion: Conventional MPR image-based assessment frequently resulted in the overestimation of the anatomical margin. We recommend using software-based assessment preoperatively in patients with tumors in the risky segments, particularly in cases involving indistinct tumors.
Toshiyuki Nagata, Kazuhiro Ueda, Souichi Suzuki, Yasuhiro Tokuda, Kentaro Yunoki, Satomi Imamura, Masami Sato
Conventional Multi-Planar Reconstruction Imaging Is Insufficient to Determine the Indication for Segmentectomy
Annals of Thoracic and Cardiovascular Surgery 2020; 26: 256–262
https://doi.org/10.5761/atcs.oa.19-0029
A case of intradiaphragmatic bronchogenic cyst with an abnormally high serum level of CA19-9
No full textBronchogenic cysts that occur within the diaphragm are rare and difficult to diagnose preoperatively. We experienced the case of a patient with an abnormally high serum carbohydrate antigen 19-9 (CA19-9) level before surgery. The diagnosis of intradiaphragmatic bronchogenic cyst was made at the time of surgery. The patient was a 50-year-old woman with upper abdominal pain with an incidentally elevated serum CA19-9. Although the tumour location could not be established on images, a tumour within the diaphragm was confirmed during the operation. The diaphragm was incised and the tumour was removed together with the capsule. Bronchial cysts were diagnosed histopathologically, and immunohistochemical examination revealed that the bronchial epithelial cells were positive for CA19-9. When managing patients with bronchogenic cysts in the diaphragm, it is difficult to make a preoperative diagnosis or determine the location of the tumour; thus, careful planning is required before surgery.
Go Kamimura, Kazuhiro Ueda, Soichi Suzuki, Masaya Aoki, Toshiyuki Nagata, Masami Sato
A case of intradiaphragmatic bronchogenic cyst with an abnormally high serum level of CA19-9
Respirology Case Reports. 2021;9:e0838.
https://doi.org/10.1002/rcr2.83
A case of schwannoma at the origin of the right recurrent laryngeal nerve resected under uniportal video-assisted thoracic surgery
No full textMediastinal neurogenic tumours are mostly derived from sympathetic nerves and intercostal nerves, and vagus nerve-derived schwannomas are rare. We encountered a tumour originating from the origin of the recurrent laryngeal nerve that was accompanied by the azygos lobe, which made it difficult to approach; it was ultimately able to be removed via uniportal video-assisted thoracic surgery. This case involved a 63-year-old female patient. There were no particular symptoms, but an abnormal chest shadow was noted on an imaging examination. Chest imaging revealed a smooth-surfaced mass in the upper right mediastinum with the azygos lobe. A diagnosis of schwannoma was made by imaging, and the patient underwent resection via uniportal video-assisted thoracic surgery. The tumour, which originated from the origin of the right recurrent laryngeal nerve, was sharply removed without causing recurrent laryngeal nerve palsy.
Go Kamimura, Kazuhiro Ueda, Aya Takeda, Koki Maeda, Masaya Aoki, Masami Sato
A case of schwannoma at the origin of the right recurrent laryngeal nerve resected under uniportal video-assisted thoracic surgery
Respirology Case Reports. 2022;10:e01023.
https://doi.org/10.1002/rcr2.1023journal articl
A case of intradiaphragmatic bronchogenic cyst with an abnormally high serum level of CA19-9
No full textBronchogenic cysts that occur within the diaphragm are rare and difficult to diagnose preoperatively. We experienced the case of a patient with an abnormally high serum carbohydrate antigen 19-9 (CA19-9) level before surgery. The diagnosis of intradiaphragmatic bronchogenic cyst was made at the time of surgery. The patient was a 50-year-old woman with upper abdominal pain with an incidentally elevated serum CA19-9. Although the tumour location could not be established on images, a tumour within the diaphragm was confirmed during the operation. The diaphragm was incised and the tumour was removed together with the capsule. Bronchial cysts were diagnosed histopathologically, and immunohistochemical examination revealed that the bronchial epithelial cells were positive for CA19-9. When managing patients with bronchogenic cysts in the diaphragm, it is difficult to make a preoperative diagnosis or determine the location of the tumour; thus, careful planning is required before surgery.
Go Kamimura, Kazuhiro Ueda, Soichi Suzuki, Masaya Aoki, Toshiyuki Nagata, Masami Sato
A case of intradiaphragmatic bronchogenic cyst with an abnormally high serum level of CA19-9
Respirology Case Reports. 2021;9:e0838.
https://doi.org/10.1002/rcr2.838journal articl
Eating Behaviors of Postoperative Esophageal Cancer Patients During the First Year After Surgery
No full text[Background] The objective of this study was to identify the eating behaviors of patients from 3 months onwards after esophageal surgery. The study was conducted on patients who had been on an oral diet for more than 3 months after the surgery. [Methods] Data were collected through interviews and analyzed by a qualitative inductive method based on the Grounded Theory Approach. [Results] The results of the analysis revealed that postoperative esophageal cancer patients go through the following three stages in respect of their eating behavior during the first year after surgery: i) Get used to swallowing, ii) Learning how to cope with the symptoms occurring during eating, by failing and succeeding repeatedly, and iii) building self-management skills in terms of eating behaviors. These were identified as the process through which the patients develop their eating behaviors during the first year after surgery. [Conclusion] The patients first faced the reality of the underlying issue, namely, difficulty in eating after the surgery, with the feeling that they experienced during swallowing in the process of eating. However, they had no choice but to accept the reality and make efforts to devise practical eating behaviors through experience. Then, eventually, they learned that self-management is necessary not only for maintaining a stable eating behavior, but also for sustaining their lives. In the longterm post-operative patient’s acquisition of new eating habits, medical staff look back and share their experiences so that they can recognize their altered body without being discouraged. However, it is necessary to continue to support them even after they discharge from the hospital by accepting difficulties in eating behavior
Intraoperative computed tomography of a resected lung inflated with air to verify safety surgical margin
No full textBackground: During sublobar resection for small, indistinct lung cancer, surgeons may be uncertain as to whether or not the target lesion has been resected and the surgical margin is sufficient. We herein report our procedure for confirming the success of sublobar resection without incising the resected specimen.
Methods: We reviewed our initial experience of 12 patients with intrapulmonary lesions (consolidation diameter ≤1 cm) who underwent thoracoscopic pulmonary wedge resection using autostapler. Six patients had primary adenocarcinoma showing part solid lesion, and remaining six patients had metastatic carcinoma showing purely solid lesion. Intraoperatively, the resected specimen was inflated with air and subjected to computed tomography (CT). The maximum tumor diameter and surgical margin length were measured intraoperatively on CT and postoperatively on formalin-fixed specimen. Surgical stump cytology was also done to verify surgical margin.
Results: According to the intraoperative CT, complete resection was confirmed in all patients. The intraoperative CT-based maximum tumor diameter closely correlated with the macroscopically measured one (r=0.971, P<0.0001). However, the tumor shrunk after formalin-fixation by 16.0% in patients with primary lung cancer (P<0.01), but not in patients with metastatic lung cancer. The intraoperative CT-based margin length closely correlated with the macroscopically measured one (r=0.984, P<0.0001). However, the margin shrunk after formalin-fixation in both patients with primary lung cancer and metastatic lung cancer, by 15.1% and 15.7%, respectively. Stump cytology was negative in all patients. Consequently, no recurrence was found during postoperative follow-up of 23 months (range, 14–31 months).
Conclusions: Intraoperative CT is reliable for diagnosing the presence of a target lesion within the resected specimen as well as for estimating the surgical margin length in patients undergoing sublobar resection for intrapulmonary indistinct lesions.
Go Kamimura, Kazuhiro Ueda, Soichi Suzuki, Koki Maeda, Hiroto Hakamada, Masami Sato
Intraoperative computed tomography of a resected lung inflated with air to verify safety surgical margin
Quantitative Imaging in Medicine and Surgery 2022;12(2):1281-1289
https://dx.doi.org/10.21037/qims-21-56
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