Publications by authors named "Nao Tamai"

Although handheld ultrasound devices (HUDs) are commonplace, their ability to diagnose fecal retention (FR) remains unclear. This prospective observational study examined HUDs' usefulness in diagnosing FR in patients with constipation in a palliative care setting. Between 10 December 2020 and 30 June 2022, we compared rectal ultrasonographic findings obtained using HUDs with clinical manifestations in 64 males and 70 females (48%, 52%, 68 ± 11 years old) with constipation who had undergone computed tomography (CT).

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Chronic constipation is a common gastrointestinal disorder, and its management is critical. However, it is extremely difficult to assess its subjective symptoms when patients are unable to report them due to cognitive or physical disabilities, especially in cases of patients with incurable geriatric, pediatric, palliative, psychiatric, or neurological diseases. We had previously established a protocol for observing and assessing rectal fecal retention using ultrasonography and for classifying cases into three categories based on the rectal findings: no fecal retention, fecal retention without hard stools, and fecal retention with hard stools.

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Background: Transabdominal ultrasound is used to detect fecal impaction, but the rectum is difficult to visualize without bladder urine or with gastrointestinal gas.

Objective: We developed a transgluteal cleft approach that is unaffected by these factors and sought to determine if our ultrasound method could detect and classify fecal matter in the lower rectum using this approach.

Methods: We classified ultrasound images from hospitalized patients into four groups: Group 1 (bowed and rock-like echogenic areas), Group 2 (irregular and cotton candy-like hyperechoic areas), Group 3 (flat and mousse-like hyperechoic areas), and Group 4 (linear echogenic areas in the lumen).

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Introduction: Pelvic floor muscle training (PFMT) for urinary incontinence (UI) is recommended in combination with biofeedback to visualize pelvic floor muscles. The focus is on non-invasive hand-held ultrasound (US) measurement methods for PFMT, which can be performed at home. Recently, self-performed US measurements in which the patient applies the US to themself have gradually spreading.

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Article Synopsis
  • * Researchers recruited women over 20 and collected 1144 US videos, which were analyzed using machine learning to develop an evaluation model that included features derived from the bladder's movement.
  • * The final model achieved an accuracy of 73% and performed well, indicating that it is feasible to use automated methods for assessing PFM contractions based on self-collected ultrasound data.
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Background: Ultrasound guidance increases the success rate of peripheral intravenous catheter placement. However, the longer time required to obtain ultrasound-guided access poses difficulties for ultrasound beginners. Notably, interpretation of ultrasonographic images is considered as one of the main reasons of difficulty in using ultrasound for catheter placement.

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Background: Severe infant eczema on the face should be treated early because it may lead to allergic diseases in the future. However, caregivers find it difficult to assess. A visual tool for caregivers is needed to easily determine infants' facial skin condition severity based on the tool's scores.

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Article Synopsis
  • The clinical practice guideline aims to guide nurses in assessing aspiration and pharyngeal residue to prevent aspiration pneumonia in adults with oropharyngeal dysphagia during eating and swallowing.
  • Established by the Japan Academy of Nursing Science in April 2018, the guideline follows the Minds Manual for Guideline Development 2017 to ensure evidence-based management options that consider patient values and benefits.
  • Ten recommendations were developed from various assessment methods, with eight classified as GRADE 2C, demonstrating the guideline's reliability and incorporation of recent research findings.
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Chronic constipation is a common gastrointestinal disorder in older adults, and it is very important to manage chronic constipation. However, evaluating these subjective symptoms is extremely difficult in cases where patients are unable to express their symptoms because of a cognitive or physical impairment. Hence, it is necessary to observe the patient's colonic faecal retention using objective methods.

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Background: The effectiveness of point-of-care ultrasound (POCUS) for nurses has been demonstrated; however, only a limited number of nurses have been trained to perform POCUS. This article reports on a POCUS train-the-trainer program for nurse educators that targets lower urinary track dysfunction.

Method: Nurse educators ( = 38) were invited to participate in a POCUS train-the-trainer program, which comprised an e-learning module and a hands-on seminar.

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Article Synopsis
  • The study aimed to evaluate how effective ultrasonography is at identifying aspiration and pharyngeal residue in patients with swallowing difficulties (dysphagia).
  • A systematic review analyzed multiple databases for studies published in English and Japanese, resulting in five studies that provided diagnostic accuracy measurements for aspiration, with good sensitivity (82%) and specificity (87%).
  • Ultrasound is considered a non-invasive and useful bedside tool for detecting aspiration, although the overall reliability of the findings was limited by potential biases and a small number of studies.
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  • Advances in patient care have led to a reduction in pressure injuries (PIs) in Japan, but recent years have not shown further progress in decreasing their prevalence.
  • Research identified specific single-nucleotide polymorphisms (SNPs) in genes linked to PIs, suggesting that targeted investigations could help pinpoint risk factors or prevention strategies.
  • A study involving 178 participants found significant associations between certain SNPs (VEGFC rs1485766 and HIF1A rs11549465) and the likelihood of developing superficial and deep PIs, respectively.
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[Aim] Because painful skin tears frequently occur in older patients, the prevention of skin tears is fundamental to improve their quality of life. However, a risk assessment tool for skin tears has not been established yet in Japan. Therefore, we aimed to propose a risk scoring tool for skin tears in Japanese older adult.

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Aims: While bowel preparation for colonoscopy is the key to successful examination, taking laxatives and showing stools to others causes both physical and mental distress to the patient. Thus, an alternative method to evaluation bowel preparation is necessary. In the current study, we studied the colonic fecal retention by ultrasonography (US) and examined the US finding which reflected completion of BP.

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Purpose: Chemotherapy causes changes in appearance in patients with cancer. Therefore, to have a normal life, it is necessary for patients to wear a wig. However, wearing a wig may strain an already sensitive scalp during chemotherapy.

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Background: Treatment of breast cancer entails surgery, often followed by chemotherapy. Alopecia is a major, intractable side effect with potentially profound impacts on appearance. We developed a nurse-facilitated program targeting appearance-related symptoms.

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Study Design: Secondary analysis of a cross-sectional observation study.

Objectives: To determine the relationship between skin ultrasound images and muscle damage in wheelchair basketball athletes, using skin blotting examinations of the ischial regions.

Setting: Community, Japan.

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To minimize the occurrence of ulcers in high-risk mobile individuals such as wheelchair users, it is necessary to detect all typical distribution patterns and to indentify the patterns that may be associated with pressure ulcers. However, pattern detection is difficult because the pressure distribution during motion includes a variety of patterns compared to those of static postures. Thus, the establishment of a method to detect typical patterns based on distribution patterns is important.

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Asteatosis is common in elderly people due to a decrease in the moisture content of the epidermal stratum corneum through a loss of skin barrier function caused by aging. Because itching often accompanies asteatosis, this condition may cause a decrease in quality of life. Care staff in elderly care facilities have many opportunities to provide care for residents.

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The prevention of progression of Category I pressure ulcers (PUs) to Category II or higher is important, as Category II or higher PUs are open wounds and have a higher infection risk. Prognosis prediction of Category I PUs is necessary to provide successful intensive care for PUs with impaired healing. We focused on skin blotting using plasminogen activator inhibitor 1 (PAI1), interleukin-1α (IL-1α), vascular endothelial growth factor C (VEGF-C), and heat shock protein 90α (HSP90α).

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Purpose: Many breast cancer patients suffer from chemotherapy-induced hair loss. Accurate information about temporal changes in chemotherapy-induced hair loss is important for supporting patients scheduled to receive chemotherapy, because it helps them to prepare. However, accurate information, on issues such as the frequency of hair loss after chemotherapy, when regrowth starts, the condition of regrown hair, and the frequency of incomplete hair regrowth, is lacking.

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Article Synopsis
  • Nurses face challenges assessing constipation in elderly patients with physical and cognitive impairments, and the effectiveness of colorectal ultrasonography (US) for evaluating symptoms is unclear.
  • The study monitored elderly patients at long-term care facilities, examining fecal distribution patterns and their relationship with constipation symptoms using daily colorectal US.
  • Results showed that 74.4% of patients had indications of fecal retention in their rectum, with specific patterns correlating with hard stool and cognitive impairment, suggesting that point-of-care US can aid nurses in diagnosing constipation in these patients.
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We investigated the associations between the self-evaluated pain status and two pain biomarker candidates, nerve growth factor and S100A8/A9, in exudate from venous leg ulcer to finally develop an objective pain evaluation method. Patients with venous leg ulcer participated in this cross-sectional observational study conducted between April and October 2014 at two medical facilities. During routine wound care, each participant self-evaluated their pain status at each examination using the 10-point numerical rating scale (present pain intensity) and the short-form McGill Pain Questionnaire 2 (continuous pain, intermittent pain, neuropathic pain, affective descriptors, and total score).

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Purpose: Skin metastasis is one of the most frequent metastases in breast cancer patients. Patients with malignant wounds experience numerous symptoms, including serious wound pain. However, the features of pain related to malignant wounds have not been investigated.

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Excessive wound exudates are troublesome symptoms of malignant fungating wounds. In particular, such exudates may cause periwound moisture-associated dermatitis (MAD). In this study, we focused on factors that contribute to skin irritation by exudates in breast cancer patients with malignant fungating wounds.

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