Publications by authors named "Tazaki T"

The prevalence of obesity is increasing worldwide, resulting in various health issues such as hypertension, dyslipidemia, diabetes mellitus, heart disease, and a lower life expectancy. Importantly, several psychiatric disorders and the use of psychotropic medications have been linked to obesity, and the possible risk factors need further investigation. This study examined the prevalence of obesity and its associated factors using a self-administered questionnaire.

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Constipation is a prevalent gastrointestinal disorder that affects people globally, decreasing their quality of life and life expectancy. Individuals with schizophrenia often suffer from constipation, which could be a result of the illness itself or the side effects of psychotropic medications. However, little research has been conducted on factors contributing to constipation in individuals with schizophrenia.

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Article Synopsis
  • Trastuzumab deruxtecan (T-Dxd) is approved for treating HER2-positive gastric cancer, but long-term complete responses are rare.
  • A case study details a woman in her late 60s with advanced gastric cancer, initially receiving multiple treatments before achieving a complete response with T-Dxd.
  • Remarkably, the patient maintained this complete response for 31 months, highlighting the potential for T-Dxd in achieving durable outcomes in difficult cases.
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Introduction Schizophrenia symptom severity is linked to neuroinflammation. Certain blood cell indexes such as neutrophil-lymphocyte ratio (NLR) and neutrophil-albumin ratio (NAR) have been used as biomarkers in various diseases, including schizophrenia. In acute clinical practice, it is challenging to decide whether to provide intravenous antipsychotic treatment in some cases due to the lack of objective biomarkers of psychiatric symptoms.

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Introduction: Port site herniation is a frequent complication of abdominal surgery, yet treatment strategies for multiple port site hernias are often difficult and case reports are rare.

Presentation Of Case: A 72-year-old woman, with a history of multiple abdominal surgeries, underwent laparoscopic surgery for rectal prolapse four years prior. Three 12 mm ports were inserted into the umbilical region, right upper quadrant and right lower abdomen, subsequently, incisional hernias developed at all three sites.

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Background: Localized colorectal amyloidosis has a good prognosis, but cases involving bleeding or perforation may require surgery. However, there are few case reports discussing the differences in the surgical strategy between the segmental and pan-colon types.

Case Presentation: A 69-year-old woman with a history of abdominal pain and melena was diagnosed with amyloidosis localized in the sigmoid colon by colonoscopy.

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Background: During neoadjuvant chemotherapy for giant gastrointestinal stromal tumors, changes in gastrointestinal stromal tumor size are rarely associated with events such as perforation and bleeding that require emergency surgery. Moreover, it is very rare for gastrointestinal stromal tumors to shrink and become mobile, resulting in gastric volvulus. Herein, we report a case of gastrointestinal stromal tumor shrinkage during neoadjuvant imatinib treatment, resulting in gastric volvulus that required surgery.

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Gastrointestinal stromal tumors (GISTs) are mesenchymal tumors that originate from the gastrointestinal tract, mostly from the stomach. GISTs are derived from the myenteric interstitial cells of Cajal and are caused by several mutations in the c-kit and platelet-derived growth factor receptor genes. Clinically, GISTs are detected by endoscopic and imaging findings and are diagnosed by immunostaining.

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What Is Known And Objective: Methotrexate (MTX) is an important agent for the treatment of primary central nervous system lymphomas (PCNSL) but needs to be given in big doses by intravenous infusions to achieve therapeutic concentrations in the cerebrospinal fluid. However, co-administration with many drugs may delay the excretion of MTX which may cause serious adverse effects if the serum concentration exceeds 0.1 µmol/L 72 h after an intravenous infusion.

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Introduction: The International Guidelines for Groin Hernia Management recommends an anterior repair after a failed posterior repair, and laparoscopic repair after a failed anterior tissue repair or Lichtenstein repair. However, there are not enough studies to guide decision-making for patients with recurrent hernia patients after combined anterior-posterior repair. We investigate the safety and usefulness of transabdominal preperitoneal repair (TAPP) for recurrent hernia patients after failed anterior-posterior repair.

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Background: A gastrointestinal stromal tumor (GIST) is a mesenchymal tumor of the gastrointestinal tract that is most commonly found in the stomach. Recurrence of GISTs mostly occurs in the liver or peritoneum, and in most cases, multiple metastases occur. As a solitary peritoneal metastasis is rare, an appropriate treatment strategy has not been established.

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A 55-year-old woman with a history of right hepatic lobectomy via a Benz incision presented for evaluation of a new abdominal bulge in the right upper quadrant. We diagnosed an incisional hernia, but because we could neither reduce the hernia contents nor locate the orifice, we performed a laparoscopic evaluation. Laparoscopy revealed subcostal herniation of the greater omentum via a 2-cm defect on the caudal side of the right ribs, which we repaired using a Ventralex ST Hernia Patch.

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Introduction: Fibrodysplasia ossificans progressiva (FOP) is a disorder causing progressive heterotopic ossification of muscles, tendons, and ligaments. Invasive procedures such as surgery should be avoided, because physical stimulation causes heterotopic ossification.

Presentation Of Case: A 40-year-old Japanese man with FOP was transported to our hospital with sudden abdominal pain.

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Introduction: The use of tension-free mesh repair techniques for inguinal hernias has led to uniformly low recurrence rates. The main associated morbidity is chronic postoperative inguinal pain. Mesh removal and triple neurectomy is the indicated procedure; there is insufficient evidence to support mesh removal alone without neurectomy in patients with chronic postoperative inguinal pain.

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Article Synopsis
  • The study investigates the link between pre-operative skeletal muscle mass (sarcopenia) and the risk of delayed gastric emptying (DGE) following pancreaticoduodenectomy, a complex surgical procedure.
  • Data from 112 patients were analyzed, revealing that those with lower skeletal muscle mass had a higher incidence of DGE, alongside other factors like body mass index and post-operative pancreatic fistula.
  • The findings suggest that sarcopenia is a significant and independent risk factor for DGE after pancreaticoduodenectomy, highlighting the importance of assessing muscle mass before surgery.
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What Is Known And Objective: Multi-drug combinations often make chemotherapy difficult owing to drug-drug interactions (DDIs). We report a rare and difficult-to-treat case due to DDIs between drugs for Mycobacterium avium complex (MAC) infection and antiepileptic drugs.

Case Description: A 70-year-old Japanese woman was diagnosed as having pulmonary MAC disease.

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We report herein a patient with an inguinoscrotal hernia containing the urinary bladder. The hernia was safely repaired using the laparoscopic transabdominal preperitoneal repair technique. A 76-year-old man was admitted to our hospital with abdominal pain, vomiting, and diarrhea.

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Intranasal inactivated influenza vaccines can elicit mucosal immune responses that protect against virus infection. For the development of intranasal inactivated influenza vaccines, effective adjuvants inducing minimal adverse reactions are required. Generally, however, lower toxicity adjuvants have lower adjuvanticity.

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Primary duodenal adenocarcinoma is a rare disease, and cases with nodal metastases have a poor prognosis. A 46-year-old man complaining of bloody stool visited our hospital. Endoscopy, CT, and PET-CT showed adenocarcinoma in the 2nd portion of the duodenum.

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We report on a case of an infected urachal remnant successfully treated via a single-incisional laparoscopic technique. An 18-year-old woman was diagnosed with an infected urachal remnant. The center of the umbilicus was pulled and inverted from the skin, and the cephalic side of the urachus was dissected from the umbilicus.

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A 72-year-old woman with a sigmoid colon cancer and a synchronous colorectal liver metastasis (CRLM), which involved the right hepatic vein (RHV) and the inferior vena cava (IVC), was referred to our hospital. The metastatic lesion was diagnosed as initially unresectable because of its invasion into the confluence of the RHV and IVC. After she had undergone laparoscopic sigmoidectomy for the original tumor, she consequently had 3 courses of modified 5-fluorouracil, leucovorin, and oxaliplatin (mFOLFOX6) plus cetuximab.

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Eosinophilic gastroenteritis (EGE) is characterized by eosinophilic infiltration of the digestive organs, most commonly of the stomach and the duodenum. Symptoms of EGE are nonspecific and include nausea, vomiting, abdominal pain, dyspepsia, malabsorption, ascites and weight loss. The various symptoms of EGE depend on its location and the depth of gastrointestinal eosinophil infiltration.

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A 30-year-old woman had refractory asthma. She had also experienced twice severe anaphylaxis episodes after ingesting peaches. The patient was extremely wary about reoccurrence of anaphylaxis and avoided ingesting any fruits, including peaches.

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To clarify the molecular pathways governing hematopoietic stem cell (HSC) development, we screened a fetal liver (FL) HSC cDNA library and identified a unique gene, hematopoietic expressed mammalian polycomb (hemp), encoding a protein with a zinc-finger domain and four malignant brain tumor (mbt) repeats. To investigate its biological role, we generated mice lacking Hemp (hemp(-/-)). Hemp(-/-) mice exhibited a variety of skeletal malformations and died soon after birth.

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