1.Effects of Bone Cross-Link Bridging on Fracture Mechanism and Surgical Outcomes in Elderly Patients with Spine Fractures
Mitsuru FURUKAWA ; Kanehiro FUJIYOSHI ; Toshiki OKUBO ; Yoshihide YANAI ; Kohei MATSUBAYASHI ; Takashi KATO ; Yoshiomi KOBAYASHI ; Tsunehiko KONOMI ; Yoshiyuki YATO
Asian Spine Journal 2023;17(4):676-684
Methods:
We examined 242 patients (age >60 years) who underwent surgery for thoracic to lumbar spine fractures from 2010 to 2020. Subsequently, the maxVB was classified into three groups: maxVB (0), maxVB (2–8), and maxVB (9–18), and parameters, including fracture morphology (new Association of Osteosynthesis classification), fracture level, and neurological deficits were compared. In a sub-analysis, 146 patients with thoracolumbar spine fractures were classified into the three aforementioned groups based on the maxVB and compared to determine the optimal operative technique and evaluate surgical outcomes.
Results:
Regarding the fracture morphology, the maxVB (0) group had more A3 and A4 fractures, whereas the maxVB (2–8) group had less A4 and more B1 and B2 fractures. The maxVB (9–18) group exhibited an increased frequency of B3 and C fractures. Regarding the fracture level, the maxVB (0) group tended to have more fractures in the thoracolumbar transition region. Furthermore, the maxVB (2–8) group had a higher fracture frequency in the lumbar spine area, whereas the maxVB (9–18) group had a higher fracture frequency in the thoracic spine area than the maxVB (0) group. The maxVB (9–18) group had fewer preoperative neurological deficits but a higher reoperation rate and postoperative mortality than the other groups.
Conclusions
The maxVB was identified as a factor influencing fracture level, fracture type, and preoperative neurological deficits. Thus, understanding the maxVB could help elucidate fracture mechanics and assist in perioperative patient management.
2.Natural History of Early Gastric Cancer: a Case Report and Literature Review.
Tomohiro IWAI ; Masao YOSHIDA ; Hiroyuki ONO ; Naomi KAKUSHIMA ; Kohei TAKIZAWA ; Masaki TANAKA ; Noboru KAWATA ; Sayo ITO ; Kenichiro IMAI ; Kinichi HOTTA ; Hirotoshi ISHIWATARI ; Hiroyuki MATSUBAYASHI
Journal of Gastric Cancer 2017;17(1):88-92
Early detection and treatment decrease the mortality rate associated with gastric cancer (GC). However, the natural history of GC remains unclear. An 85-year-old woman was referred to our hospital for evaluation of a gastric tumor. Esophagogastroduodenoscopy identified a 6 mm, flat-elevated lesion at the lesser curvature of the antrum. A biopsy specimen showed a well-differentiated tubular adenocarcinoma. The depth of the lesion was estimated to be intramucosal. Although the lesion met the indications for endoscopic resection, periodic endoscopic follow-up was performed due to the patient's advanced age and comorbidities. The mucosal GC invaded into the submucosa 3 years later, and finally progressed to advanced cancer 5 years after the initial examination. The patient died of tumor hemorrhage 6.4 years after the initial examination. In this case, mucosal GC progressed to advanced GC, eventually leading to the patient's death from GC. Early and appropriate treatment is required to prevent GC-related death.
Adenocarcinoma
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Aged, 80 and over
;
Biopsy
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Comorbidity
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Endoscopy, Digestive System
;
Female
;
Follow-Up Studies
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Hemorrhage
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Humans
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Mortality
;
Natural History*
;
Stomach Neoplasms*
3.Comparison of the Diagnostic Yield of the Standard 22-Gauge Needle and the New 20-Gauge Forward-Bevel Core Biopsy Needle for Endoscopic Ultrasound-Guided Tissue Acquisition from Pancreatic Lesions
Shinya FUJIE ; Hirotoshi ISHIWATARI ; Keiko SASAKI ; Junya SATO ; Hiroyuki MATSUBAYASHI ; Masao YOSHIDA ; Sayo ITO ; Noboru KAWATA ; Kenichiro IMAI ; Naomi KAKUSHIMA ; Kohei TAKIZAWA ; Kinichi HOTTA ; Hiroyuki ONO
Gut and Liver 2019;13(3):349-355
BACKGROUND/AIMS: To compare the diagnostic yield of 20-gauge forward-bevel core biopsy needle (CBN) and 22-gauge needle for endoscopic ultrasound (EUS)-guided fine needle aspiration (FNA) of solid pancreatic masses. METHODS: The use of 20-gauge CBN was prospectively evaluated for 50 patients who underwent EUS-FNA from June 2016 to December 2016. Data were compared with those obtained by a retrospective study of 50 consecutive patients who underwent EUS-FNA using standard 22-gauge needles between December 2016 and April 2017. At least two punctures were performed for each patient; the sample from the first pass was used for cytology with or without histology and that from the second pass was used for histology. Sample quantity was evaluated using the sample obtained from the second pass. RESULTS: There was no significant difference in the diagnostic accuracy rate between the first and second passes (20-gauge CBN: 96% [48/50]; standard 22-gauge needle: 88% [44/50]). Samples >10× power fields in length were obtained from 90% (43/48) and 60% (30/50) of patients using the 20-gauge CBN and standard 22-gauge needle, respectively (p=0.01). Technical failure occurred for two patients with the 20-gauge CBN. CONCLUSIONS: Diagnostic accuracy of the 20-gauge CBN was comparable to that of the 22-gauge needle. However, two passes with the 20-gauge CBN yielded a correct diagnosis for 100% of patients when technically feasible. Moreover, the 20-gauge CBN yielded core tissue for 90% patients, which was a performance superior to that of the 22-gauge needle.
Biopsy
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Biopsy, Fine-Needle
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Diagnosis
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Endoscopic Ultrasound-Guided Fine Needle Aspiration
;
Humans
;
Needles
;
Pancreas
;
Prospective Studies
;
Punctures
;
Retrospective Studies
;
Ultrasonography
4.Present Status of Endoscopic Submucosal Dissection for Non-Ampullary Duodenal Epithelial Tumors
Naomi KAKUSHIMA ; Masao YOSHIDA ; Yohei YABUUCHI ; Noboru KAWATA ; Kohei TAKIZAWA ; Yoshihiro KISHIDA ; Sayo ITO ; Kenichiro IMAI ; Kinichi HOTTA ; Hirotoshi ISHIWATARI ; Hiroyuki MATSUBAYASHI ; Hiroyuki ONO
Clinical Endoscopy 2020;53(6):652-658
Prediction of histology by endoscopic examination is important in the clinical management of non-ampullary duodenal epithelial tumors (NADETs), including adenoma and adenocarcinoma. The use of a simple scoring system based on the findings of white-light endoscopy or magnified endoscopy with narrow-band imaging is useful to differentiate between Vienna category 3 (C3) and C4/5 lesions. Less invasive endoscopic resection procedures, such as cold snare polypectomy, are quick to perform and convenient for small (<10 mm) C3 lesions. Neoplasms with higher grade histology, such as C4/5 lesions, should be treated by endoscopic mucosal resection (EMR), endoscopic submucosal dissection (ESD), or surgery. Although EMR often requires piecemeal resection, the complication rate is acceptable. Excellent complete resection rates could be achieved by ESD; however, it remains a challenging method considering the high risk of complications. Shielding or closure of the ulcer after ESD is effective at decreasing the risk of delayed bleeding and perforation. Laparoscopic endoscopic cooperative surgery is an ideal treatment with a high rate of en bloc resection and a low rate of complications, although it is limited to high-volume centers. Patients with NADETs could benefit from a multidisciplinary approach to stratify the optimal treatment based on endoscopic diagnoses.