Publications by authors named "Takao Wakabayashi"

Background: Long-term hospital stay is associated with functional decline in patients with pneumonia, especially in the elderly. Among elderly patients with pneumonia, aspiration pneumonia is a major category. Clinical definition is usually used because it can occur without apparent aspiration episodes.

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Objective Both coronavirus disease 2019 (COVID-19) pneumonia and relative bradycardia are common conditions among clinicians; however, the association between these has not been well studied. The present study assessed whether or not relative bradycardia on admission was more predominant in patients with COVID-19 pneumonia than in those with other infectious pneumonia. Methods For this single-center, retrospective cohort study, we collected data through electronic medical records and examined the occurrence of relative bradycardia on admission.

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Background: For current medical education, community-based primary care for the elderly is an essential topic. This study aimed to establish a scale of community-based assessment for clinical and emergency practice (C-CEP).

Methods: A self-assessment scale for C-CEP was developed according to four steps.

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Objective Although the absence of a runny nose and sore throat, both ear-nose-throat (ENT) symptoms, suggests community-acquired pneumonia (CAP), the association between ENT symptoms and coronavirus disease 2019 (COVID-19) pneumonia remains unclear. We therefore investigated the association between ENT symptoms and COVID-19 pneumonia. Methods We retrospectively recruited consecutive confirmed COVID-19 inpatients with and without pneumonia admitted to a single institution from April 1, 2020, to July 31, 2021.

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Background: Although bacteremia is one of the most pressing situation in the field of hospital medicine, little is known about the differences between community- and hospital-acquired bacteremia (CAB and HAB, respectively).

Methods: Objective is to know the epidemiologic characteristics of CAB and HAB. Study design is a single-center retrospective cohort study.

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Background: Mortality prediction of pneumonia by severity scores in patients with multiple underlying health conditions has not fully been investigated. This prospective cohort study is to identify mortality-associated underlying health conditions and to analyse their influence on severity-based pneumonia mortality prediction.

Methods: Adult patients with community-acquired pneumonia or healthcare-associated pneumonia (HCAP) who visited four community hospitals between September 2011 and January 2013 were enrolled.

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Aim: To verify the performance of a lesion size measurement system through a clinical study.

Methods: Our proposed system, which consists of a conventional endoscope, an optical device, an optical probe, and a personal computer, generates a grid scale to measure the lesion size from an endoscopic image. The width of the grid scale is constantly adjusted according to the distance between the tip of the endoscope and lesion because the lesion size on an endoscopic image changes according to the distance.

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Aim: We studied eosinophilic esophagitis (EE) to clarify the clinical and endoscopic features of a Japanese case series.

Methods: Records of 10 patients diagnosed with EE at our hospital between May 2010 and December 2011 were examined for age, sex, symptoms, allergic disorder, endoscopic findings, and treatment received. Esophageal wall thickness was measured by endoscopic ultrasonography (EUS).

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The guideline for peptic ulcer treatment was reported by Japanese Society of Gastroenterology in 2009. In the guideline, 23 clinical questions were chosen for NSAIDs induced ulcer. Nine questions out of them were related to the prevention, eight were low dose aspirin, three were COX-2 inhibitors and three were the treatment.

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Inflammatory bowel disease is a multifactorial disease. Oxidative stress has been thought to be one of etiologic factor for inflammatory bowel disease. The genes superoxide dismutase (SOD2) and NAD(P)H:quinone oxidoreductase 1 (NQO1) are involved in inflammation and oxidative stress.

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This study was undertaken to clarify the importance of nutritional status in patients with acute cholecystitis, and also evaluate whether they benefited from enteral nutrition supplementation, including medium-chain triglycerides (MCT), during the convalescent stage. Patients with acute cholecystitis admitted to our hospital between April 1994 and March 2002 were classified into a poor nutrition group (n=40; total serum protein<5.0 g/dl) or a fair nutrition group (n=71; >5.

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Aim: To examine the influence of lipoprotein lipase (LPL) gene polymorphism in ulcerative colitis (UC) patients.

Methods: Peripheral blood was obtained from 131 patients with UC and 106 healthy controls for DNA extraction. We determined LPL gene polymorphisms affecting the enzyme at Ser447stop, as well as Hind III and Pvu II polymorphisms using PCR techniques.

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Actual age and biological age are not always proportional. To find out indices of aging, other than actual age, we investigated relationship between aging and four hepatic fibrosis markers: hyaluronates, type IV collagen, type IV collagen 7s and P III P. The subject of this study were 78 patients of inpatients and outpatients of our hospital.

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