Publications by authors named "Uchida F"

Purpose: To clarify the effects of preoperative nutritional evaluation on the prognosis of patients with tongue squamous cell carcinoma.

Methods: This retrospective cohort study involves 126 consecutive patients who underwent radical surgery as their initial treatment and received treatment for >3 years. The markers considered in this study are GGT (γ-GTP), CAR (C-reactive protein (CRP)-to-Alb Ratio), GLR (GGT-to-Lymphocytes Ratio), GPR (GGT-to-Platelet ratio), GNR (GGT-to-Neutrophil ratio), NLR (Neutrophil-to-Lymphocyte ratio), PLR (platelet-to-lymphocytes ratio), OPNI (Onodera`s prognostic nutritional index), PINI (Prognostic Immune and Nutritional Index) and Albumin (Alb).

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This study reports a rare case of a dentigerous cyst in a malformed tooth in the mandible of a 5-year-old Japanese boy. Panoramic radiography revealed a cystic lesion with hard tissues inside. The patient underwent surgery under general anesthesia.

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Article Synopsis
  • The study investigates the effectiveness of catheter ablation in eliminating idiopathic ventricular arrhythmias from different sites in the heart.
  • It analyzes data from 58 patients and finds that overall, 72% had successful ablation, with different success rates linked to two specific sites: ECS and endo-EAS.
  • Successful ECS ablation is associated with shorter distances to the activation site, while successful endo-EAS ablation is linked to earlier electrical signals and shorter intervals between activation sites.
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This report presents a rare case of direct invasion from a metastatic submandibular lymph node (SMLN) to submandibular gland (SMG) in a resected specimen of neck dissection (ND) of buccal mucosal squamous cell carcinoma (SCC). The patient was an 82-year-old woman with a clinical diagnosis of the left buccal mucosal SCC (cT4bN2bM0, Stage IVB). The tracheostomy, modified radical neck dissection, buccal mucosal cancer resection including maxillary partial resection, mandibular segmentectomy, and reconstructive surgery with a plate and a free rectus abdominis flap were performed.

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  • Tracheal regeneration is difficult due to its complex structure and limited blood flow; this study introduces scaffold-free artificial tracheas created using bio-3D printing.
  • The artificial tracheas feature hyaline cartilage on the front, developed from mesenchymal stem cells, and smooth muscle on the back, with both tissues successfully cultured and matured.
  • Histological analyses confirmed the proper differentiation of cells, showing that the artificial trachea consists of functional tissues suitable for potential applications in medical regeneration.
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Background: Locoregional surgical pathology, with surgical margins at the primary site and lymph node (LN) metastasis, particularly extranodal extension (ENE), plays an important role in the prognosis of oral squamous cell carcinoma (OSCC). In addition, systemic inflammatory response and nutritional status are associated with poor prognosis.

Purpose: This study aimed to comprehensively assess the effect of inflammatory markers and locoregional factors on the prognosis of patients with OSCC who underwent neck dissection (ND).

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Techniques for triggering neural differentiation of embryonic and induced pluripotent stem cells into neural stem cells and neurons have been established. However, neural induction of mesenchymal stem cells, including dental pulp stem cells (DPSCs), has been assessed primarily based on neural-related gene regulation, and detailed studies into the characteristics and differentiation status of cells are lacking. Therefore, this study was aimed at evaluating the cellular components and differentiation pathways of neural lineage cells obtained via neural induction of human DPSCs.

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We report a case of cholangitis, an immune-related adverse event (irAE), caused by the administration of nivolumab in a patient with lung metastasis of oral cancer. A 72-year-old man developed pulmonary metastasis after surgery for oral cancer. Hepatic enzyme abnormalities were observed after the second session of treatment, and irAE cholangitis was diagnosed based on the results of the blood test results and endoscopy findings.

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Cardiotocography (CTG) is widely used to assess fetal well-being. CTG is typically obtained using ultrasound and autocorrelation methods, which extract periodicity from the signal to calculate the heart rate. However, during labor, maternal vessel pulsations can be measured, resulting in the output of the maternal heart rate (MHR).

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Cardiotocography (CTG) measurements are critical for assessing fetal wellbeing during monitoring, and accurate assessment requires well-traceable CTG signals. The current FHR calculation algorithm, based on autocorrelation to Doppler ultrasound (DUS) signals, often results in periods of loss owing to its inability to differentiate signals. We hypothesized that classifying DUS signals by type could be a solution and proposed that an artificial intelligence (AI)-based approach could be used for classification.

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  • The study investigates how factors like age, sex, body mass index, and diabetes mellitus affect the risk of developing fever after aortic valve replacement surgery.
  • It analyzed data from 87 patients and used statistical methods to determine which factors were significant.
  • The key finding is that patients with diabetes mellitus were actually less likely to experience postoperative fevers above 38°C, contrary to common expectations.
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Elective neck dissection (END) is recommended for the management of patients with oral squamous cell carcinoma (OSCC) because of the risk of occult metastasis (OM). We hypothesized that some factors predict poor prognosis regardless of a cN0 END. This study aimed to investigate the predictors of OM and prognostic factors in patients with cN0 OSCC who underwent supraomohyoid neck dissection (SOHND).

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Background: The submandibular gland (SMG) is sacrificed during neck dissection in patients undergoing curative surgery for oral squamous cell carcinoma (OSCC). This may cause a decrease in the production of saliva and result in xerostomia.

Purpose: This study aimed to determine the incidence, invasion patterns, risk factors, and prognosis of SMG involvement in OSCC.

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Lipopolysaccharide (LPS) derived from Porphyromonas gingivalis (P.g.), which causes periodontal disease, contributes to the development of non-alcoholic steatohepatitis (NASH).

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To determine the intracellular behavior of p62, a marker of selective autophagy, in oral potentially malignant disorders (OPMDs). This retrospective study includes 70 patients who underwent biopsy or surgical resection and were definitively diagnosed with OPMDs. Immunohistochemical staining for p62, XPO1, p53, and ki67 was performed on all samples and positive cell occupancy was calculated.

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Generally, systemic chemotherapy is indicated for oral squamous cell carcinoma with distant metastasis and has a poor prognosis. Recently, the advent of molecular targeted drugs, such as cetuximab and immune checkpoint inhibitors, has dramatically improved prognosis, though controlling distant metastasis remains challenging. We report a case of tongue cancer in which lung metastases disappeared in the long term.

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Instruction: In colon cancer, the incidence of postoperative ileus is reportedly higher for the right-side than for the left-side colon, but those studies included small numbers of subjects and contained several biases. Furthermore, risk factors for postoperative ileus remain unclear.

Methods: This multicenter study reviewed 1986 patients who underwent laparoscopic colectomy between 2016 and 2021 for right-side (n = 907) and left-side (n = 1079) colon cancer.

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We report a case of tophaceous pseudogout that occurred in the temporomandibular joint (TMJ) and presented with skull base destruction. The patient was a 73-year-old woman, who complained of an obstructed ear sensation in December 2021. The otolaryngological examination was unremarkeable, and a computed tomography scan revealed a calcified lesion in the left TMJ.

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Article Synopsis
  • Primary intraosseous adenoid cystic carcinoma (PIACC) is a rare type of jaw cancer, with only 51 documented cases in English literature.
  • A 70-year-old woman exhibited symptoms including paresthesia in her chin and underwent radiographic imaging, which showed an abnormal area in the jaw, leading to a biopsy that confirmed the diagnosis.
  • Despite undergoing chemotherapy, her condition worsened with the presence of multiple bone metastases; hence, she received supportive care for an additional three years.
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Anterior maxillary distraction osteogenesis (AMDO) surgery for cleft lip and palate involves distraction of a segment of the anterior maxilla and advancement using 2 intraoral buccal bone-borne distraction devices. The anterior part of the maxilla is advanced anteriorly with less relapse which increases maxillary length and does not affect speech. We aimed to evaluate the effects of AMDO, including lateral cephalometric changes.

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This study investigated the effect of postoperative deep sedation after oral cancer reconstructive surgery on the occurrence of early postoperative pneumonia and early postoperative delirium. We obtained medical records of 108 consecutive patients who underwent microvascular reconstructive surgery at Tsukuba University Hospital for oral cancer between January 2013 and December 2021. Forty-six of them woke soon after surgery.

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  • This study analyzed the relationship between the uptake of a radioactive glucose compound in cervical lymph nodes compared to primary tumors in oral cancer patients prior to surgery.
  • It included 52 Japanese patients with oral squamous cell carcinoma, measuring the maximum standardized uptake values from preoperative PET scans and calculating the lymph node-to-tumor ratio.
  • Results revealed that a high lymph node-to-tumor uptake ratio (>0.4739) was associated with significantly worse overall survival rates, suggesting this ratio could serve as a useful prognostic factor in treatment planning.
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Primary intraosseous squamous cell carcinoma (PISCC) arising from dentigerous cysts (DCs) is rare. Herein, we present a rare case of a 35 year-old Japanese man with PISCC arising from a DC. Clinicians should be aware of the potential for malignant changes to SCC in asymptomatic DCs and should conduct follow-up.

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