1
|
Hasebe K, Kojima T, Okanoue Y, Yuki R, Yamamoto H, Otsuki S, Fujimura S, Hori R. Novel evaluation method for facial nerve palsy using 3D facial recognition system in iPhone. Auris Nasus Larynx 2024; 51:460-464. [PMID: 38520978 DOI: 10.1016/j.anl.2024.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 02/05/2024] [Accepted: 02/07/2024] [Indexed: 03/25/2024]
Abstract
OBJECTIVE While subjective methods like the Yanagihara system and the House-Brackmann system are standard in evaluating facial paralysis, they are limited by intra- and inter-observer variability. Meanwhile, quantitative objective methods such as electroneurography and electromyography are time-consuming. Our aim was to introduce a swift, objective, and quantitative method for evaluating facial movements. METHODS We developed an application software (app) that utilizes the facial recognition functionality of the iPhone (Apple Inc., Cupertino, USA) for facial movement evaluation. This app leverages the phone's front camera, infrared radiation, and infrared camera to provide detailed three-dimensional facial topology. It quantitatively compares left and right facial movements by region and displays the movement ratio of the affected side to the opposite side. Evaluations using the app were conducted on both normal and facial palsy subjects and were compared with conventional methods. RESULTS Our app provided an intuitive user experience, completing evaluations in under a minute, and thus proving practical for regular use. Its evaluation scores correlated highly with the Yanagihara system, the House-Brackmann system, and electromyography. Furthermore, the app outperformed conventional methods in assessing detailed facial movements. CONCLUSION Our novel iPhone app offers a valuable tool for the comprehensive and efficient evaluation of facial palsy.
Collapse
Affiliation(s)
- Koki Hasebe
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kawahara-cho 54, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Tsuyoshi Kojima
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kawahara-cho 54, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan.
| | - Yusuke Okanoue
- Department of Otolaryngology, Head and Neck Surgery, Tenri Hospital, 200 Mishima-cho, Tenri, Nara 632-8552, Japan
| | - Ryohei Yuki
- Department of Otolaryngology, Head and Neck Surgery, Kitano Hospital, 2-4-20 Ohgimachi, Kita-ku, Osaka 530-8480, Japan
| | - Hirotaka Yamamoto
- Department of Otolaryngology, Head and Neck Surgery, Shizuoka City Shizuoka Hospital, 4-27-1 Kita Ando, Aoi-ku, Shizuoka 420-8527, Japan
| | - Shuya Otsuki
- Department of Otolaryngology, Head and Neck Surgery, Tenri Hospital, 200 Mishima-cho, Tenri, Nara 632-8552, Japan
| | - Shintaro Fujimura
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kawahara-cho 54, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Ryusuke Hori
- Department of Otolaryngology - Head and Neck Surgery, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, Fukuoka 807-8555, Japan
| |
Collapse
|
2
|
Ushiro K, Watanabe Y, Kishimoto Y, Kawai Y, Fujimura S, Asato R, Tsujimura T, Hori R, Kumabe Y, Yasuda K, Tamaki H, Iki T, Kitani Y, Kurata K, Kojima T, Takata K, Kada S, Takebayashi S, Shinohara S, Hamaguchi K, Miyazaki M, Ikenaga T, Maetani T, Harada H, Haji T, Omori K. Complications including dysphagia following transoral non-robotic surgery for pharyngeal and laryngeal squamous cell carcinoma: A retrospective multicenter study. Auris Nasus Larynx 2024; 51:575-582. [PMID: 38547566 DOI: 10.1016/j.anl.2024.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 02/19/2024] [Accepted: 03/14/2024] [Indexed: 05/12/2024]
Abstract
OBJECTIVE Transoral surgery is a minimally invasive treatment but may cause severe dysphagia at a lower rate than chemoradiotherapy. METHODS We compared clinical information, surgical complications, and swallowing function in patients who underwent transoral nonrobotic surgery for laryngo-pharyngeal squamous cell carcinoma between 2015 and 2021 in a multicenter retrospective study. RESULTS Six hundred and forty patients were included. Postoperative bleeding was observed in 20 cases (3.1%), and the risk factor was advanced T category. Postoperative laryngeal edema was observed in 13 cases (2.0%), and the risk factors were prior radiotherapy, advanced T stage, and concurrent neck dissection in patients with resected HPC. Dysphagia requiring nutritional support was observed in 29 cases (4.5%) at 1 month postoperatively and in 19 cases (3.0%) at 1 year postoperatively, respectively. The risk factors for long-term dysphagia were prior radiotherapy and advanced T category. Short-term risk factors for dysphagia were prior radiotherapy, advanced T category, and concurrent neck dissection, while long-term risk factors for dysphagia were only prior radiotherapy and advanced T category. CONCLUSION Prior radiotherapy, advanced T stage, and concurrent neck dissection increased the incidence of postoperative laryngeal edema and short-term dysphagia, but concurrent neck dissection did not affect long-term dysphagia. Such features should be considered when considering the indication for transoral surgery and postoperative management.
Collapse
Affiliation(s)
- Koji Ushiro
- Department of Otolaryngology-Head & Neck Surgery, National Hospital Organization Kyoto Medical Center, 1-1 Mukaihata-cho, Fukakusa, Fushimi-ku, Kyoto 612-8555, Japan.
| | - Yoshiki Watanabe
- Department of Otolaryngology-Head & Neck Surgery, Japanese Red Cross Osaka Hospital, Osaka, Japan
| | - Yo Kishimoto
- Department of Otolaryngology-Head & Neck Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yoshitaka Kawai
- Department of Otolaryngology-Head & Neck Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Shintaro Fujimura
- Department of Otolaryngology-Head & Neck Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Ryo Asato
- Department of Otolaryngology-Head & Neck Surgery, National Hospital Organization Kyoto Medical Center, 1-1 Mukaihata-cho, Fukakusa, Fushimi-ku, Kyoto 612-8555, Japan
| | - Takashi Tsujimura
- Department of Otolaryngology, Japanese Red Cross Wakayama Medical Center, Wakayama, Japan
| | - Ryusuke Hori
- Department of Otolaryngology-Head and Neck Surgery, University of Occupational and Environmental Health, Kitakyushu, Japan; Department of Otolaryngology-Head & Neck Surgery, Fujita Health University, Toyoake, Japan; Department of Otolaryngology-Head & Neck Surgery, Tenri Hospital, Tenri, Japan
| | - Yohei Kumabe
- Department of Otolaryngology-Head & Neck Surgery, Hyogo Prefectural Amagasaki General Medical Center, Amagasaki, Japan
| | - Kaori Yasuda
- Department of Otolaryngology-Head & Neck Surgery, Hyogo Prefectural Amagasaki General Medical Center, Amagasaki, Japan
| | - Hisanobu Tamaki
- Department of Otolaryngology-Head & Neck Surgery, Kurashiki Central Hospital, Kurashiki, Japan
| | - Takehiro Iki
- Department of Otolaryngology-Head & Neck Surgery, Kurashiki Central Hospital, Kurashiki, Japan
| | - Yoshiharu Kitani
- Department of Otolaryngology-Head & Neck Surgery, Shizuoka General Hospital, Shizuoka, Japan
| | - Keisuke Kurata
- Department of Otolaryngology-Head & Neck Surgery, Shizuoka General Hospital, Shizuoka, Japan
| | - Tsuyoshi Kojima
- Department of Otolaryngology-Head & Neck Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan; Department of Otolaryngology-Head & Neck Surgery, Tenri Hospital, Tenri, Japan
| | - Kuniaki Takata
- Department of Otolaryngology-Head & Neck Surgery, Tenri Hospital, Tenri, Japan
| | - Shinpei Kada
- Department of Otolaryngology-Head & Neck Surgery, Japanese Red Cross Otsu Hospital, Otsu, Japan
| | - Shinji Takebayashi
- Department of Otolaryngology-Head & Neck Surgery, Shiga General Hospital, Moriyama, Japan
| | - Shogo Shinohara
- Department of Otolaryngology-Head & Neck Surgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Kiyomi Hamaguchi
- Department of Otolaryngology-Head & Neck Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan; Department of Otolaryngology-Head & Neck Surgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Masakazu Miyazaki
- Department of Otolaryngology-Head & Neck Surgery, Nara Prefecture General Medical Center, Nara, Japan
| | - Tadashi Ikenaga
- Department of Otolaryngology-Head & Neck Surgery, Nara Prefecture General Medical Center, Nara, Japan
| | - Toshiki Maetani
- Department of Otolaryngology-Head & Neck Surgery, Medical Research Institute, Kitano Hospital, Osaka, Japan
| | - Hiroyuki Harada
- Department of Otolaryngology-Head & Neck Surgery, Medical Research Institute, Kitano Hospital, Osaka, Japan
| | - Tomoyuki Haji
- Department of Otolaryngology-Head & Neck Surgery, Kurashiki Central Hospital, Kurashiki, Japan
| | - Koichi Omori
- Department of Otolaryngology-Head & Neck Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| |
Collapse
|
3
|
Kojima T, Fujimura S, Hasebe K, Okanoue Y, Shuya O, Yuki R, Shoji K, Hori R, Kishimoto Y, Omori K. Objective Assessment of Pathological Voice Using Artificial Intelligence Based on the GRBAS Scale. J Voice 2024; 38:561-566. [PMID: 34973892 DOI: 10.1016/j.jvoice.2021.11.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 11/29/2021] [Accepted: 11/30/2021] [Indexed: 11/23/2022]
Abstract
OBJECTIVES The validity and reliability of the psychological assessment of auditory perceptions, as typified by the grade, roughness, breathiness, asthenia, and strain (GRBAS) scale, have been widely recognized. However, due to their subjective nature, inter- and intra-examiner reliability are unavoidable. In this study, we aimed to add objectivity to the GRBAS scale using artificial intelligence and to compare the accuracy of two methods-one based on Google's TensorFlow and another based on Apple's Core ML. METHODS The GRBAS scale of 1,377 vowel samples was evaluated and used as training data to create a machine learning model. We used TensorFlow and Apple's Create ML to create two machine learning models and examined the difference in their accuracies for classifying the severity of pathological Voice data based on the GRBAS scale. RESULTS Absolute comparisons are difficult to make because of the difference in methods; however, both training models could objectively evaluate GRBAS scales and were statistically correlated in G and B. CONCLUSION While TensorFlow requires creation of a training model from scratch, Create ML is a relatively easy way to create a training model for voice by adding training data for GRBAS scales to an existing training model for sounds. Although the data handling and learning methods are different, both models performed well. Findings from this study could be used for medical screening purposes, and there is the potential to change the clinical approach to voice diagnostics in the future.
Collapse
Affiliation(s)
- Tsuyoshi Kojima
- Department of Otolaryngology, Tenri Hospital, Tenri, Nara, Japan.
| | - Shintaro Fujimura
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Koki Hasebe
- Department of Otolaryngology, Osaka Red Cross Hospital, Osaka, Japan
| | - Yusuke Okanoue
- Department of Otolaryngology, Tenri Hospital, Tenri, Nara, Japan
| | - Otsuki Shuya
- Department of Otolaryngology, Tenri Hospital, Tenri, Nara, Japan
| | - Ryohei Yuki
- Department of Otolaryngology, Tenri Hospital, Tenri, Nara, Japan
| | - Kazuhiko Shoji
- Department of Otolaryngology, Tenri Hospital, Tenri, Nara, Japan
| | - Ryusuke Hori
- Department of Otolaryngology-Head and Neck Surgery, School of Medicine, Fujita Health University, Aichi, Japan
| | - Yo Kishimoto
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Koichi Omori
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| |
Collapse
|
4
|
Ushiro K, Watanabe Y, Kishimoto Y, Kawai Y, Fujimura S, Asato R, Tsujimura T, Hori R, Kumabe Y, Yasuda K, Tamaki H, Iki T, Kitani Y, Kurata K, Kojima T, Takata K, Kada S, Takebayashi S, Shinohara S, Hamaguchi K, Miyazaki M, Ikenaga T, Maetani T, Harada H, Haji T, Omori K. Impact of cervical lymph node metastasis on transoral surgery for hypopharyngeal squamous cell carcinoma: A retrospective multicenter study. Head Neck 2024. [PMID: 38294099 DOI: 10.1002/hed.27666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 12/11/2023] [Accepted: 01/19/2024] [Indexed: 02/01/2024] Open
Abstract
BACKGROUND Hypopharyngeal carcinoma is likely to spread to the lymph nodes, but there is no established strategy for management in transoral surgery. METHODS We compared oncologic and functional outcomes in a retrospective multicenter study of patients who underwent transoral surgery for hypopharyngeal carcinoma between 2015 and 2021. RESULTS Two-hundred and thirty-two patients were included. Comparing patients with and without adjuvant radiotherapy, 3-year regional recurrence-free survival (RRFS) was not significantly different in pN2b and pN2c, but was significantly worse in pN3b without adjuvant radiotherapy. In patients without neck dissection, the 3-year RRFS was 85.6%, 76.8%, and 70.0% for T1, T2, and T3 primary lesions, respectively, and was significantly worse for T2 or higher (p = 0.035). CONCLUSIONS In the absence of extracapsular invasion, regional control did not deteriorate without adjuvant therapy. If prophylactic neck dissection is not performed, careful follow-up is necessary if the primary lesion is T2 or greater.
Collapse
Affiliation(s)
- Koji Ushiro
- Department of Otolaryngology - Head & Neck Surgery, National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - Yoshiki Watanabe
- Department of Otolaryngology - Head & Neck Surgery, Japanese Red Cross Osaka Hospital, Osaka, Japan
| | - Yo Kishimoto
- Department of Otolaryngology - Head & Neck Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yoshitaka Kawai
- Department of Otolaryngology - Head & Neck Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Shintaro Fujimura
- Department of Otolaryngology - Head & Neck Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Ryo Asato
- Department of Otolaryngology - Head & Neck Surgery, National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - Takashi Tsujimura
- Department of Otolaryngology, Japanese Red Cross Wakayama Medical Center, Wakayama, Japan
| | - Ryusuke Hori
- Department of Otolaryngology - Head and Neck Surgery, University of Occupational and Environmental Health, Kitakyushu, Japan
- Department of Otolaryngology - Head & Neck Surgery, Fujita Health University, Toyoake, Japan
- Department of Otolaryngology - Head & Neck Surgery, Tenri Hospital, Tenri, Japan
| | - Yohei Kumabe
- Department of Otolaryngology - Head & Neck Surgery, Hyogo Prefectural Amagasaki General Medical Center, Amagasaki, Japan
| | - Kaori Yasuda
- Department of Otolaryngology - Head & Neck Surgery, Hyogo Prefectural Amagasaki General Medical Center, Amagasaki, Japan
| | - Hisanobu Tamaki
- Department of Otolaryngology - Head & Neck Surgery, Kurashiki Central Hospital, Kurashiki, Japan
| | - Takehiro Iki
- Department of Otolaryngology - Head & Neck Surgery, Kurashiki Central Hospital, Kurashiki, Japan
| | - Yoshiharu Kitani
- Department of Otolaryngology - Head & Neck Surgery, Shizuoka General Hospital, Shizuoka, Japan
| | - Keisuke Kurata
- Department of Otolaryngology - Head & Neck Surgery, Shizuoka General Hospital, Shizuoka, Japan
| | - Tsuyoshi Kojima
- Department of Otolaryngology - Head & Neck Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
- Department of Otolaryngology - Head & Neck Surgery, Tenri Hospital, Tenri, Japan
| | - Kuniaki Takata
- Department of Otolaryngology - Head & Neck Surgery, Tenri Hospital, Tenri, Japan
| | - Shinpei Kada
- Department of Otolaryngology - Head & Neck Surgery, Japanese Red Cross Otsu Hospital, Otsu, Japan
| | - Shinji Takebayashi
- Department of Otolaryngology - Head & Neck Surgery, Shiga General Hospital, Moriyama, Japan
| | - Shogo Shinohara
- Department of Otolaryngology - Head & Neck Surgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Kiyomi Hamaguchi
- Department of Otolaryngology - Head & Neck Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
- Department of Otolaryngology - Head & Neck Surgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Masakazu Miyazaki
- Department of Otolaryngology - Head & Neck Surgery, Nara Prefecture General Medical Center, Nara, Japan
| | - Tadashi Ikenaga
- Department of Otolaryngology - Head & Neck Surgery, Nara Prefecture General Medical Center, Nara, Japan
| | - Toshiki Maetani
- Department of Otolaryngology - Head & Neck Surgery, Medical Research Institute, Kitano Hospital, Osaka, Japan
| | - Hiroyuki Harada
- Department of Otolaryngology - Head & Neck Surgery, Medical Research Institute, Kitano Hospital, Osaka, Japan
| | - Tomoyuki Haji
- Department of Otolaryngology - Head & Neck Surgery, Kurashiki Central Hospital, Kurashiki, Japan
| | - Koichi Omori
- Department of Otolaryngology - Head & Neck Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| |
Collapse
|
5
|
Hasebe K, Kojima T, Fujimura S, Tamura K, Kawai Y, Kishimoto Y, Omori K. The Effect of Noise on Deep Learning for Classification of Pathological Voice. Laryngoscope 2024. [PMID: 38280184 DOI: 10.1002/lary.31303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 12/31/2023] [Accepted: 01/05/2024] [Indexed: 01/29/2024]
Abstract
OBJECTIVE This study aimed to evaluate the significance of background noise in machine learning models assessing the GRBAS scale for voice disorders. METHODS A dataset of 1406 voice samples was collected from retrospective data, and a 5-layer 1D convolutional neural network (CNN) model was constructed using TensorFlow. The dataset was divided into training, validation, and test data. Gaussian noise was added to test samples at various intensities to assess the model's noise resilience. The model's performance was evaluated using accuracy, F1 score, and quadratic weighted Cohen's kappa score. RESULTS The model's performance on the GRBAS scale generally declined with increasing noise intensities. For the G scale, accuracy dropped from 70.9% (original) to 8.5% (at the highest noise), F1 score from 69.2% to 1.3%, and Cohen's kappa from 0.679 to 0.0. Similar declines were observed for the remaining RBAS components. CONCLUSION The model's performance was affected by background noise, with substantial decreases in evaluation metrics as noise levels intensified. Future research should explore noise-tolerant techniques, such as data augmentation, to improve the model's noise resilience in real-world settings. LEVEL OF EVIDENCE This study evaluates a machine learning model using a single dataset without comparative controls. Given its non-comparative design and specific focus, it aligns with Level 4 evidence (Case-series) under the 2011 OCEBM guidelines Laryngoscope, 2024.
Collapse
Affiliation(s)
- Koki Hasebe
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Tsuyoshi Kojima
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Shintaro Fujimura
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Keiichi Tamura
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Yoshitaka Kawai
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Yo Kishimoto
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Koichi Omori
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| |
Collapse
|
6
|
Kishimoto Y, Kawai Y, Fujimura S, Komurasaki A, Sakanaka K, Tsunoda S, Mizowaki T, Obama K, Muto M, Omori K. Outcome of selective neck dissection for cervical lymph node recurrence or residual lymph node metastasis of oesophageal cancer. Clin Otolaryngol 2024; 49:152-157. [PMID: 37904717 DOI: 10.1111/coa.14118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 01/06/2023] [Accepted: 10/10/2023] [Indexed: 11/01/2023]
Affiliation(s)
- Yo Kishimoto
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Yoshitaka Kawai
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Shintaro Fujimura
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Ayana Komurasaki
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Katsuyuki Sakanaka
- Department of Radiation Oncology and Image-Applied Therapy, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Shigeru Tsunoda
- Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Takashi Mizowaki
- Department of Radiation Oncology and Image-Applied Therapy, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Kazutaka Obama
- Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Manabu Muto
- Department of Therapeutic Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Koichi Omori
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| |
Collapse
|
7
|
Ushiro K, Watanabe Y, Kishimoto Y, Kawai Y, Fujimura S, Asato R, Tsujimura T, Hori R, Kumabe Y, Yasuda K, Tamaki H, Iki T, Kitani Y, Kurata K, Kojima T, Takata K, Kada S, Takebayashi S, Shinohara S, Hamaguchi K, Miyazaki M, Ikenaga T, Maetani T, Harada H, Haji T, Omori K. Local recurrence and metachronous multiple cancers after transoral nonrobotic surgery for pharyngeal and laryngeal squamous cell carcinoma: A retrospective multicenter study. Head Neck 2024; 46:118-128. [PMID: 37897205 DOI: 10.1002/hed.27564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 09/25/2023] [Accepted: 10/17/2023] [Indexed: 10/29/2023] Open
Abstract
BACKGROUND Late laryngopharyngeal cancers after transoral surgery include not only local recurrences but also metachronous multiple cancers. METHODS We compared clinical information, surgical outcomes, and late laryngopharyngeal cancers in patients who underwent transoral nonrobotic surgery for laryngopharyngeal squamous cell carcinoma without lymph node metastases between 2015 and 2021 in a multicenter retrospective study. RESULTS Four hundred and fifty-seven patients were included. Positive surgical margins were found in 121 patients (26.5%). Twenty-two patients (4.8%) received additional treatment. Positive horizontal margins of invasive carcinoma (p = 0.003) and positive horizontal margins of carcinoma in situ only (p = 0.032) were independent risk factors for local recurrence, and prior radiotherapy (p = 0.001) for metachronous multiple cancers. Local control was significantly worse without additional treatment (p = 0.049), but there was no significant difference in survival. CONCLUSIONS Patients with positive margins had an increased frequency of local recurrence, but salvage therapy was effective.
Collapse
Affiliation(s)
- Koji Ushiro
- Department of Otolaryngology - Head & Neck Surgery, National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - Yoshiki Watanabe
- Department of Otolaryngology - Head & Neck Surgery, Japanese Red Cross Osaka Hospital, Osaka, Japan
| | - Yo Kishimoto
- Department of Otolaryngology - Head & Neck Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yoshitaka Kawai
- Department of Otolaryngology - Head & Neck Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Shintaro Fujimura
- Department of Otolaryngology - Head & Neck Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Ryo Asato
- Department of Otolaryngology - Head & Neck Surgery, National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - Takashi Tsujimura
- Department of Otolaryngology, Japanese Red Cross Wakayama Medical Center, Wakayama, Japan
| | - Ryusuke Hori
- Department of Otolaryngology - Head and Neck Surgery, University of Occupational and Environmental Health, Kitakyushu, Japan
- Department of Otolaryngology - Head & Neck Surgery, Fujita Health University, Toyoake, Japan
- Department of Otolaryngology - Head & Neck Surgery, Tenri Hospital, Tenri, Japan
| | - Yohei Kumabe
- Department of Otolaryngology - Head & Neck Surgery, Hyogo Prefectural Amagasaki General Medical Center, Amagasaki, Japan
| | - Kaori Yasuda
- Department of Otolaryngology - Head & Neck Surgery, Hyogo Prefectural Amagasaki General Medical Center, Amagasaki, Japan
| | - Hisanobu Tamaki
- Department of Otolaryngology - Head & Neck Surgery, Kurashiki Central Hospital, Kurashiki, Japan
| | - Takehiro Iki
- Department of Otolaryngology - Head & Neck Surgery, Kurashiki Central Hospital, Kurashiki, Japan
| | - Yoshiharu Kitani
- Department of Otolaryngology - Head & Neck Surgery, Shizuoka General Hospital, Shizuoka, Japan
| | - Keisuke Kurata
- Department of Otolaryngology - Head & Neck Surgery, Shizuoka General Hospital, Shizuoka, Japan
| | - Tsuyoshi Kojima
- Department of Otolaryngology - Head & Neck Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
- Department of Otolaryngology - Head & Neck Surgery, Tenri Hospital, Tenri, Japan
| | - Kuniaki Takata
- Department of Otolaryngology - Head & Neck Surgery, Tenri Hospital, Tenri, Japan
| | - Shinpei Kada
- Department of Otolaryngology - Head & Neck Surgery, Japanese Red Cross Otsu Hospital, Otsu, Japan
| | - Shinji Takebayashi
- Department of Otolaryngology - Head & Neck Surgery, Shiga General Hospital, Moriyama, Japan
| | - Shogo Shinohara
- Department of Otolaryngology - Head & Neck Surgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Kiyomi Hamaguchi
- Department of Otolaryngology - Head & Neck Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
- Department of Otolaryngology - Head & Neck Surgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Masakazu Miyazaki
- Department of Otolaryngology - Head & Neck Surgery, Nara Prefecture General Medical Center, Nara, Japan
| | - Tadashi Ikenaga
- Department of Otolaryngology - Head & Neck Surgery, Nara Prefecture General Medical Center, Nara, Japan
| | - Toshiki Maetani
- Department of Otolaryngology - Head & Neck Surgery, Medical Research Institute, Kitano Hospital, Osaka, Japan
| | - Hiroyuki Harada
- Department of Otolaryngology - Head & Neck Surgery, Medical Research Institute, Kitano Hospital, Osaka, Japan
| | - Tomoyuki Haji
- Department of Otolaryngology - Head & Neck Surgery, Hyogo Prefectural Amagasaki General Medical Center, Amagasaki, Japan
| | - Koichi Omori
- Department of Otolaryngology - Head & Neck Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| |
Collapse
|
8
|
Mizuno K, Kishimoto Y, Kawai Y, Fujimura S, Iwanaga K, Mizuno K, Shimizu T, Yokoyama A, Nikaido M, Hirohashi K, Muto M, Seno H, Tateya I, Omori K. A prospective evaluation of postoperative swallowing function and dysphagia following endoscopic laryngopharyngeal surgery. Int J Clin Oncol 2023; 28:521-530. [PMID: 36780098 DOI: 10.1007/s10147-023-02309-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 02/01/2023] [Indexed: 02/14/2023]
Abstract
BACKGROUND Endoscopic laryngopharyngeal surgery (ELPS) is a minimally invasive transoral surgery for superficial pharyngeal and laryngeal cancer, but dysphagia occasionally occurs post-treatment. We investigated dysphagia following ELPS and its risk factors. METHODS Of the 145 patients who underwent ELPS, 92 were evaluated in this study using the Hyodo score, Functional Outcome Swallowing Scale, Eating Assessment Tool-10 along with the total scores for the three items of the method of intake, time, and food preoperatively and on postoperative 1, 3, and 6 months. We examined the 6-month trends of these values. Furthermore, the fasting period post-surgery, the need for swallowing rehabilitation by a speech therapist, and postoperative pneumonia episodes were set as outcomes reflecting the short-term swallowing function. We determined the associations between these outcomes and patient background factors. RESULTS Postoperatively, the Hyodo score worsened at 1 month but recovered at 3 months. The Hyodo scores of all patients who underwent postcricoid ELPS did not worsen. The diameter of the resected specimen (DRS) was significantly associated with the need for swallowing rehabilitation and postoperative fasting time. A DRS ≥ 35 mm was considered the threshold for the need of swallowing rehabilitation, postoperative pneumonia, and prolonged postoperative fasting time. CONCLUSION ELPS exerts a temporal and limited impact on the swallowing function, which recovers within 3 months in every swallowing evaluation. This necessitates additional care during the treatment of patients with mucosal defects ≥ 35 mm, owing to the significant association between the DRS and short-term swallowing function.
Collapse
Affiliation(s)
- Keisuke Mizuno
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507, Japan
| | - Yo Kishimoto
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507, Japan.
| | - Yoshitaka Kawai
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507, Japan
| | - Shintaro Fujimura
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507, Japan
| | - Ken Iwanaga
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507, Japan
| | - Kayoko Mizuno
- Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, 54 Shogoin Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507, Japan
| | - Takahiro Shimizu
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507, Japan
| | - Akira Yokoyama
- Department of Therapeutic Oncology, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507, Japan
| | - Mitsuhiro Nikaido
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507, Japan
| | - Kenshiro Hirohashi
- Department of Therapeutic Oncology, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507, Japan
| | - Manabu Muto
- Department of Therapeutic Oncology, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507, Japan
| | - Hiroshi Seno
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507, Japan
| | - Ichiro Tateya
- Department of Otolaryngology, Head and Neck Surgery, Fujita Health University, 1-98 Dengakugakubo Kutsukake-Cho, Toyoake, Aichi, 470-1192, Japan
| | - Koichi Omori
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507, Japan
| |
Collapse
|
9
|
Kawai Y, Mizuta M, Tateya I, Kishimoto Y, Fujimura S, Suehiro A, Hiwatashi N, Omori K. Intraoperative computed tomography imaging for laryngoplasty. Auris Nasus Larynx 2023; 50:94-101. [PMID: 35701287 DOI: 10.1016/j.anl.2022.05.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 05/09/2022] [Accepted: 05/31/2022] [Indexed: 01/28/2023]
Abstract
OBJECTIVES Intraoperative cone beam computed tomography (CBCT) imaging has the potential to facilitate the surgical procedure. The current preliminary retrospective chart review investigated the benefits of intraoperative CBCT during laryngoplasty. METHOD This study examined 26 cases that underwent intraoperative CBCT imaging during laryngoplasty, with one patient who counted twice due to first and revision surgery. The visual quality of structures of interest (glottal shape, thyroid cartilage, arytenoid cartilage, and implants) was determined using intraoperative CBCT during laryngoplasty. Each patient also underwent an aerodynamic assessment. RESULTS CBCT provided unique information, such as surgical landmarks in severe scarring, the subglottal shape, and the rotation angle of the arytenoid cartilage during arytenoid adduction. Nonetheless, 26.9% (7 of 26) of cases were affected by motion artifact, due to the long acquisition time. When motion artifact-negative cases were evaluated, 100% of glottal shape and more than 89% of thyroid cartilage were well visualized. All arytenoids were well-visualized in patients ≥ 50 years of age and without motion artifact, while CBCT failed to visualize the arytenoids in 2 of 4 patients who were < 50 years, due to the lack of calcifications. After medialization surgery, the yields of improved maximal phonation times (MPTs) in the motion artifact-negative and -positive groups were 8.7 sec and 3.4 sec, respectively (p = 0.032; Welch's t test). This comparison indicates intraoperative CBCT would contribute in MPT improvement, if CBCT is taken in measurable quality. CONCLUSION The potential benefits of intraoperative CBCT during laryngoplasty were demonstrated. A corollary, prospective study is warranted to further confirmation.
Collapse
Affiliation(s)
- Yoshitaka Kawai
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Masanobu Mizuta
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Ichiro Tateya
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan; Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Fujita Health University, Aichi, Japan.
| | - Yo Kishimoto
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Shintaro Fujimura
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Atsushi Suehiro
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Nao Hiwatashi
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Koichi Omori
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| |
Collapse
|
10
|
Hanada K, Tsunoda S, Nomura M, Fujimura S, Yutaka Y, Nishigori T, Hisamori S, Maekewa H, Hoshino N, Itami A, Tanaka E, Obama K. A case of long-term survival treated with three metastasectomies and two subsequent adjuvant nivolumab therapies for recurrent malignant melanoma of the esophagus. Surg Case Rep 2022; 8:206. [PMCID: PMC9636353 DOI: 10.1186/s40792-022-01561-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 10/25/2022] [Indexed: 11/06/2022] Open
Abstract
Background The treatment strategy for metastatic lesions of primary malignant melanoma of the esophagus (PMME) is currently determined on a case-by-case basis, based on the National Comprehensive Cancer Network (NCCN) guidelines for cutaneous melanoma. The NCCN guidelines state that resection should be considered in patients with resectable metastatic recurrence. Herein, we report a case of long-term survival treated with three metastasectomies and two subsequent adjuvant nivolumab therapies for the metastatic recurrence of PMME. Case presentation A 65-year-old female patient with PMME underwent thoracoscopic subtotal esophagectomy, gastric tube reconstruction via the posterior mediastinal route, and cervical esophagogastric anastomosis. Histopathological examination of the resected specimen revealed that the tumor was PMME with tumor invasion into the muscularis propria and no lymph node metastasis. At the age of 68 years, she developed intestinal invagination due to jejunal metastasis of malignant melanoma and underwent resection of the jejunum. Histopathological examination of the resected specimen revealed two metastases of malignant melanoma in the jejunum and one metastasis to the mesenteric lymph node. At the age of 75 years, a recurrence of malignant melanoma was found in the cervical esophagus. She underwent thoracoscopic mobilization of the gastric tube and esophagus followed by cervical esophagectomy and reconstruction with a free jejunum flap. She received 24 courses of nivolumab therapy for 1 year as a postoperative adjuvant therapy. Subsequently, at the age of 78 years, an enlarged left cervical lymph node and a mass in the right lower lobe of the lung were found. She underwent left cervical lymph node dissection and thoracoscopic wedge resection of the right lung. Histopathological examination of the resected specimens revealed that both tumors were metastases of malignant melanoma. At age 79 years, she received eight courses of nivolumab therapy as a second postoperative adjuvant therapy, with no sign of recurrence in a 9-month follow-up period after the third metastasectomy. Conclusion In cases of metastatic recurrence of PMME, aggressive resection of oligometastasis with postoperative adjuvant nivolumab therapy may result in long-term survival.
Collapse
Affiliation(s)
- Keita Hanada
- grid.258799.80000 0004 0372 2033Department of Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin- Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507 Japan
| | - Shigeru Tsunoda
- grid.258799.80000 0004 0372 2033Department of Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin- Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507 Japan
| | - Motoo Nomura
- grid.411217.00000 0004 0531 2775Department of Clinical Oncology, Kyoto University Hospital, 54 Shogoin- Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507 Japan
| | - Shintaro Fujimura
- grid.258799.80000 0004 0372 2033Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin- Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507 Japan
| | - Yojiro Yutaka
- grid.258799.80000 0004 0372 2033Department of Thoracic Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin- Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507 Japan
| | - Tatsuto Nishigori
- grid.258799.80000 0004 0372 2033Department of Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin- Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507 Japan
| | - Shigeo Hisamori
- grid.258799.80000 0004 0372 2033Department of Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin- Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507 Japan
| | - Hisatsugu Maekewa
- grid.258799.80000 0004 0372 2033Department of Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin- Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507 Japan
| | - Nobuaki Hoshino
- grid.258799.80000 0004 0372 2033Department of Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin- Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507 Japan
| | - Atsushi Itami
- grid.258799.80000 0004 0372 2033Department of Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin- Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507 Japan ,grid.416289.00000 0004 1772 3264Department of Surgery, Kobe City Nishi-Kobe Medical Center, 5-7-1 Kojidai, Nishi-Ku, Kobe, 651-2273 Japan
| | - Eiji Tanaka
- grid.258799.80000 0004 0372 2033Department of Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin- Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507 Japan ,grid.415392.80000 0004 0378 7849Department of Gastroenterological Surgery and Oncology, Kitano Hospital Medical Research Institute, Ohgimachi, Kita-Ku, Osaka, 530-8480 Japan
| | - Kazutaka Obama
- grid.258799.80000 0004 0372 2033Department of Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin- Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507 Japan
| |
Collapse
|
11
|
Kondo K, Mizuta M, Kawai Y, Sogami T, Fujimura S, Kojima T, Abe C, Tanaka R, Shiromoto O, Uozumi R, Kishimoto Y, Tateya I, Omori K, Haji T. Development and Validation of the Japanese Version of the Consensus Auditory-Perceptual Evaluation of Voice. J Speech Lang Hear Res 2021; 64:4754-4761. [PMID: 34752149 DOI: 10.1044/2021_jslhr-21-00269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
PURPOSE Auditory-perceptual evaluation is essential for the assessment of voice quality. The Consensus Auditory-Perceptual Evaluation of Voice (CAPE-V) provides a standardized protocol and assessment form for clinicians to analyze the voice quality and has been adapted into several different languages. The aims of this study were to develop the Japanese version of the CAPE-V and to investigate its reliability and validity. METHOD The Japanese CAPE-V consisted of the same three speech contexts (vowels, sentences, and conversation) as developed in the original English version. The sentences were designed according to the concepts of the original version and reviewed by Japanese phoneticians. To validate the usefulness of the Japanese CAPE-V, voices of 173 Japanese-speaking subjects (76 subjects with dysphonia and 97 without voice complaints) were evaluated by five experienced judges, according to the Japanese CAPE-V as well as the GRBAS (Grade, Roughness, Breathiness, Asthenia, Strain) scale. RESULTS The Japanese CAPE-V provided a high interrater reliability (intraclass correlation coefficients [ICCs] > .85 for all the parameters) as well as a high intrarater reliability (ICCs > .85 for all the parameters). In addition, overall severity, roughness, and breathiness in the Japanese CAPE-V were highly correlated with the corresponding dimensions in the GRBAS scale, having Spearman correlation coefficients greater than .8. CONCLUSION This study demonstrated the reliability and validity of the newly developed Japanese CAPE-V as an auditory-perceptual evaluation instrument.
Collapse
Affiliation(s)
- Kanako Kondo
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Japan
| | - Masanobu Mizuta
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Japan
- Department of Otolaryngology/Head and Neck Surgery, Kurashiki Central Hospital, Japan
| | - Yoshitaka Kawai
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Japan
| | - Tohru Sogami
- Department of Otorhinolaryngology, Soseikai General Hospital, Kyoto, Japan
| | - Shintaro Fujimura
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Japan
| | | | - Chika Abe
- Department of Otolaryngology/Head and Neck Surgery, Kurashiki Central Hospital, Japan
| | - Ryo Tanaka
- Rehabilitation Center, Tenri Hospital, Nara, Japan
| | - Osamu Shiromoto
- Department of Communication Sciences and Disorders, Faculty of Health and Welfare, Prefectural University of Hiroshima, Mihara, Japan
| | - Ryuji Uozumi
- Department of Biomedical Statistics and Bioinformatics, Graduate School of Medicine, Kyoto University, Japan
| | - Yo Kishimoto
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Japan
| | - Ichiro Tateya
- Department of Otolaryngology-Head and Neck Surgery, School of Medicine, Fujita Health University, Toyoake, Japan
| | - Koichi Omori
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Japan
| | - Tomoyuki Haji
- Department of Otolaryngology/Head and Neck Surgery, Kurashiki Central Hospital, Japan
| |
Collapse
|
12
|
Yoshimura S, Yamamoto K, Fujimura S, Kawata S, Shimada K, Omotehara T, Itoh M. A case of double inferior vena cava with the connection to sacral venous plexus. Anat Sci Int 2021; 97:143-146. [PMID: 34797514 DOI: 10.1007/s12565-021-00640-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 11/06/2021] [Indexed: 11/28/2022]
Abstract
Double inferior vena cava (IVC) is known as a variation in which the additional IVC is found on the left side of the abdominal aorta. Their developmental process has been well documented, but the venous development around the lumbosacral region is controversial. In the present double IVC case, the left IVC entered the left renal vein at the L2 level, and the renal veins on each side flowed into the right IVC at the L1 level. The internal and external iliac veins were merged at the S1 level on each side. Besides, a venous communication (3-mm-width) was found horizontally between the internal iliac veins near their origin at the S1 level. It had also an extra narrow branch (1-mm-width), which ran obliquely upward and reached the left IVC at the level of L5. The median sacral artery (MSA) ran at the ventral side of the horizontal communication but at the dorsal side of its extra oblique branch. These results suggest that the oblique branch is a remnant of the anastomosis between the right and left posterior cardinal veins. Furthermore, the horizontal vein corresponds to the sacral venous plexus, suggesting that the anastomosis can be formed between the IVC and sacral venous plexus.
Collapse
Affiliation(s)
- Shiori Yoshimura
- Department of Anatomy, Tokyo Medical University, 6-1-1, Shinjuku, Shinjuku-Ku, Tokyo, 160-8402, Japan
| | - Kentaro Yamamoto
- Department of Anatomy, Tokyo Medical University, 6-1-1, Shinjuku, Shinjuku-Ku, Tokyo, 160-8402, Japan
| | - Shintaro Fujimura
- Department of Anatomy, Tokyo Medical University, 6-1-1, Shinjuku, Shinjuku-Ku, Tokyo, 160-8402, Japan
| | - Shinichi Kawata
- Department of Anatomy, Tokyo Medical University, 6-1-1, Shinjuku, Shinjuku-Ku, Tokyo, 160-8402, Japan
| | - Kazuyuki Shimada
- Department of Anatomy, Tokyo Medical University, 6-1-1, Shinjuku, Shinjuku-Ku, Tokyo, 160-8402, Japan
| | - Takuya Omotehara
- Department of Anatomy, Tokyo Medical University, 6-1-1, Shinjuku, Shinjuku-Ku, Tokyo, 160-8402, Japan.
| | - Masahiro Itoh
- Department of Anatomy, Tokyo Medical University, 6-1-1, Shinjuku, Shinjuku-Ku, Tokyo, 160-8402, Japan
| |
Collapse
|
13
|
Kishimoto Y, Hiwatashi N, Kawai Y, Fujimura S, Sogami T, Hayashi Y, Omori K. A retrospective analysis of revision framework surgeries for unilateral vocal fold paralysis. Braz J Otorhinolaryngol 2020; 88:767-772. [PMID: 33419650 PMCID: PMC9483942 DOI: 10.1016/j.bjorl.2020.11.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 10/01/2020] [Accepted: 11/09/2020] [Indexed: 11/28/2022] Open
Abstract
INTRODUCTION Revision framework surgeries might be required for unilateral vocal fold paralyses. However, outcomes and indications of revision surgeries have not been adequately documented. For a better understanding of indications for the procedure and to help in achieving better vocal outcomes, we performed a retrospective chart review of patients who underwent revision framework surgeries for unilateral vocal fold paralysis. OBJECTIVES This study aimed to present clinical features of patients who underwent revision framework surgeries for the treatment of unilateral vocal fold paralysis. METHODS Of the 149 framework surgeries performed between October 2004 and October 2019, 21 revision framework surgeries were performed in 19 patients. Self-assessments by patients using the voice handicap index-10 questionnaire, and objective aerodynamic and acoustic assessments performed pre- and post-operatively were analyzed using the Wilcoxon's signed-rank test for paired comparisons. RESULTS Undercorrection was indicated as reasons for revision surgeries in all cases. The revision techniques included type I thyroplasty, type IV thyroplasty, and arytenoid adduction, and revision surgeries were completed without any severe complication in all cases. Pre- and post-operative voice handicap index-10 scores were obtained in 12 cases, and other parameters were evaluated in 18 cases. Significant improvements were observed in voice handicap index-10 scores, maximum phonation time, mean flow rate, Current/Direct Current ratio, and pitch perturbation quotient. CONCLUSION Undercorrection was observed in all patients who underwent revision framework surgeries for unilateral vocal fold paralysis, and the initial assessment and planning are thought to be important in order to avoid revision surgeries. Revision surgeries were performed safely in all cases, and significantly improved vocal outcomes were observed, even after multiple procedures. Revision surgery should be considered for patients with unsatisfactory vocal functions after primary framework surgeries for unilateral vocal fold paralysis.
Collapse
Affiliation(s)
- Yo Kishimoto
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
| | - Nao Hiwatashi
- Department of Otolaryngology, Kyoto-Katsura Hospital, Kyoto, Japan
| | - Yoshitaka Kawai
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Shintaro Fujimura
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Tohru Sogami
- Department of Otolaryngology, Soseikai General Hospital, Kyoto, Japan
| | - Yasuyuki Hayashi
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Koichi Omori
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| |
Collapse
|
14
|
Kitano M, Kojima T, Okanoue Y, Fujimura S, Oyagi S, Shoji K, Hori R. Concurrent chemoradiotherapy with low-dose weekly platinum agent for head and neck carcinoma. Clin Otolaryngol 2020; 45:952-955. [PMID: 32741125 DOI: 10.1111/coa.13623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 02/13/2020] [Accepted: 07/21/2020] [Indexed: 10/23/2022]
Affiliation(s)
- Masayuki Kitano
- Department of Otolaryngology, Tenri Hospital, Nara, Japan.,Department of Otolaryngology-Head & Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | | | - Yusuke Okanoue
- Department of Otolaryngology, Tenri Hospital, Nara, Japan
| | - Shintaro Fujimura
- Department of Otolaryngology-Head & Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Seiji Oyagi
- Department of Otolaryngology-Head & Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Kazuhiko Shoji
- Department of Otolaryngology, Tenri Hospital, Nara, Japan
| | - Ryusuke Hori
- Department of Otolaryngology, Tenri Hospital, Nara, Japan
| |
Collapse
|
15
|
Kojima T, Hasebe K, Fujimura S, Okanoue Y, Kagoshima H, Taguchi A, Yamamoto H, Shoji K, Hori R. A New iPhone Application for Voice Quality Assessment Based on the GRBAS Scale. Laryngoscope 2020; 131:580-582. [PMID: 32644238 DOI: 10.1002/lary.28796] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 05/01/2020] [Accepted: 05/14/2020] [Indexed: 11/06/2022]
Affiliation(s)
- Tsuyoshi Kojima
- Department of Otolaryngology, Tenri Hospital, Tenri, Nara, Japan
| | - Koki Hasebe
- Department of Otolaryngology, Tenri Hospital, Tenri, Nara, Japan
| | - Shintaro Fujimura
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Yusuke Okanoue
- Department of Otolaryngology, Tenri Hospital, Tenri, Nara, Japan
| | - Hiroki Kagoshima
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Atsushi Taguchi
- Department of Otolaryngology, Tenri Hospital, Tenri, Nara, Japan
| | | | - Kazuhiko Shoji
- Department of Otolaryngology, Tenri Hospital, Tenri, Nara, Japan
| | - Ryusuke Hori
- Department of Otolaryngology, Tenri Hospital, Tenri, Nara, Japan
| |
Collapse
|
16
|
Fujimura S, Kojima T, Okanoue Y, Shoji K, Inoue M, Omori K, Hori R. Classification of Voice Disorders Using a One-Dimensional Convolutional Neural Network. J Voice 2020; 36:15-20. [DOI: 10.1016/j.jvoice.2020.02.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Revised: 02/10/2020] [Accepted: 02/10/2020] [Indexed: 10/24/2022]
|
17
|
Kawamura M, Sato T, Fujimura S. In vitro exposure of chlorhexidine induce quinolone resistance in Pseudomonas aeruginosa. J Infect Public Health 2020. [DOI: 10.1016/j.jiph.2020.01.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
|
18
|
Fujimura S, Nagasawa T, Kawamura M, Sato T, Sato T. The sterilization effect against Staphylococcus aureus and Pseudomonas aeruginosa on the contact lens using the Ultraviolet C irradiation. J Infect Public Health 2020. [DOI: 10.1016/j.jiph.2020.01.119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
|
19
|
Fujimura S, Kojima T, Okanoue Y, Shoji K, Inoue M, Hori R. Discrimination of "hot potato voice" caused by upper airway obstruction utilizing a support vector machine. Laryngoscope 2018; 129:1301-1307. [PMID: 30485441 DOI: 10.1002/lary.27584] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/28/2018] [Indexed: 11/09/2022]
Abstract
OBJECTIVES/HYPOTHESIS "Hot potato voice" (HPV) is a thick, muffled voice caused by pharyngeal or laryngeal diseases characterized by severe upper airway obstruction, including acute epiglottitis and peritonsillitis. To develop a method for determining upper-airway emergency based on this important vocal feature, we investigated the acoustic characteristics of HPV using a physical, articulatory speech synthesis model. The results of the simulation were then applied to design a computerized recognition framework using a mel-frequency cepstral coefficient domain support vector machine (SVM). STUDY DESIGN Quasi-experimental research design. METHODS Changes in the voice spectral envelope caused by upper airway obstructions were analyzed using a hybrid time-frequency model of articulatory speech synthesis. We evaluated variations in the formant structure and thresholds of critical vocal tract area functions that triggered HPV. The SVMs were trained using a dataset of 2,200 synthetic voice samples generated by an articulatory synthesizer. Voice classification experiments on test datasets of real patient voices were then performed. RESULTS On phonation of the Japanese vowel /e/, the frequency of the second formant fell and coalesced with that of the first formant as the area function of the oropharynx decreased. Changes in higher-order formants varied according to constriction location. The highest accuracy afforded by the SVM classifier trained with synthetic data was 88.3%. CONCLUSIONS HPV caused by upper airway obstruction has a highly characteristic spectral envelope. Based on this distinctive voice feature, our SVM classifier, who was trained using synthetic data, was able to diagnose upper-airway obstructions with a high degree of accuracy. LEVEL OF EVIDENCE 2c Laryngoscope, 129:1301-1307, 2019.
Collapse
Affiliation(s)
| | - Tsuyoshi Kojima
- Department of Otolaryngology , Tenri Hospital, Tenri, Nara, Japan
| | - Yusuke Okanoue
- Department of Otolaryngology , Tenri Hospital, Tenri, Nara, Japan
| | - Kazuhiko Shoji
- Department of Otolaryngology , Tenri Hospital, Tenri, Nara, Japan
| | - Masato Inoue
- Department of Electrical Engineering and Bioscience , School of Advanced Science and Engineering, Waseda University, Shinjuku, Tokyo, Japan
| | - Ryusuke Hori
- Department of Otolaryngology , Tenri Hospital, Tenri, Nara, Japan
| |
Collapse
|
20
|
Kojima T, Fujimura S, Hori R, Okanoue Y, Shoji K, Inoue M. An Innovative Voice Analyzer "VA" Smart Phone Program for Quantitative Analysis of Voice Quality. J Voice 2018; 33:642-648. [PMID: 29801970 DOI: 10.1016/j.jvoice.2018.01.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Accepted: 01/30/2018] [Indexed: 11/24/2022]
Abstract
OBJECTIVE The 'VA' Windows program that we developed in 2011 for analyzing voice quality quantitatively uses zerocross picking to find individual basic pitch periods. It has a simple and user-friendly user interface and high accuracy. This program determines the fundamental frequency, jitter, shimmer, PPQ, APQ, and signal-to-noise ratio (Ra). It needs only a general-purpose Windows PC, USB audio interface and a microphone. The aim of this study is to improve the version of the VA Windows program in English and to develop a VA smart phone program to allow wider use of objective acoustic analysis. STUDY DESIGN Cross-sectional study. METHODS Sustained vowel /a/ sounds from 40 subjects without evident vocal problems, and 40 subjects with slight hoarseness, were examined. We compared the analyzed data with data from other software (MDVP and Praat). For a comparison between VA for Windows and VA for a smart phone, sustained vowel /a/ sounds from six subjects without hoarseness were recorded with each system simultaneously. RESULTS The normal voice and slightly hoarse voice data analyzed with VA showed a high correlation with most parameters from both MDVP and Praat. There was a strong correlation between the Windows and smart phone versions of VA in terms of the fundamental frequency and Ra. CONCLUSIONS The results showed that the VA software was not inferior to the other acoustic analysis software tested. The simple and easy to use smart phone version may facilitate our goal of creating an objective, widely available method to evaluate hoarseness.
Collapse
Affiliation(s)
| | | | - Ryusuke Hori
- Department of Otolaryngology, Tenri Hospital, Nara, Japan
| | - Yusuke Okanoue
- Department of Otolaryngology, Tenri Hospital, Nara, Japan
| | - Kazuhiko Shoji
- Department of Otolaryngology, Tenri Hospital, Nara, Japan
| | - Masato Inoue
- Department of Electrical Engineering and Bioscience, School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
| |
Collapse
|
21
|
Inutake M, Ando A, Hattori K, Yagai T, Tobari H, Kumagai Y, Miyazaki H, Fujimura S. Magnetic-Nozzle Acceleration and Ion Heating of A Supersonic Plasma Flow. Fusion Science and Technology 2018. [DOI: 10.13182/fst03-a11963577] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- M. Inutake
- Department of Electrical Engineering, Tohoku University, Aoba05, Sendai 980-8579, Japan ,
| | - A. Ando
- Department of Electrical Engineering, Tohoku University, Aoba05, Sendai 980-8579, Japan ,
| | - K. Hattori
- Department of Electrical Engineering, Tohoku University, Aoba05, Sendai 980-8579, Japan ,
| | - T. Yagai
- Department of Electrical Engineering, Tohoku University, Aoba05, Sendai 980-8579, Japan ,
| | - H. Tobari
- Department of Electrical Engineering, Tohoku University, Aoba05, Sendai 980-8579, Japan ,
| | - Y. Kumagai
- Department of Electrical Engineering, Tohoku University, Aoba05, Sendai 980-8579, Japan ,
| | - H. Miyazaki
- Department of Electrical Engineering, Tohoku University, Aoba05, Sendai 980-8579, Japan ,
| | - S. Fujimura
- Department of Electrical Engineering, Tohoku University, Aoba05, Sendai 980-8579, Japan ,
| |
Collapse
|
22
|
Morita M, Hori R, Fujimura S, Okanoue Y, Kojima T, Omori K, Shoji K. Application of a Novel Vibrating Device for Fine-Needle Aspiration Cytology. ACTA ACUST UNITED AC 2017. [DOI: 10.4172/2324-8785.1000325] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
23
|
Hori R, Shoji K, Hamaguchi K, Kojima T, Okanoue Y, Fujimura S, Okuyama H, Kobayashi T. [Parotidectomy for parotid gland tumor using a retrograde approach from the peripheral branches of the facial nerve]. Nihon Jibiinkoka Gakkai Kaiho 2015; 117:1362-6. [PMID: 25731018 DOI: 10.3950/jibiinkoka.117.1362] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
There are two techniques for excising a parotid gland tumor. The first technique is the anterograde approach, and the second is the retrograde approach. Although the anterograde approach has generally been adopted, the retrograde approach may be useful depending on the identification and dissection of the facial nerve and the localization of the tumor. We reviewed 35 patients who were surgically treated with a parotidectomy using the retrograde approach between 2002 and 2012 at Tenri Hospital. We also reviewed the clinical records for evidence of temporary or definitive injury to the facial nerve. In cases where the identification of the main nerve trunk was expected to be difficult, the parotidectomy was performed using the retrograde approach guided by the mandibular branch. In cases where a tumor was located in the marginal region of the parotid gland, the retrograde approach was guided by the mandibular branch or the zygomatic branch. Of the 35 patients, 17 underwent the retrograde approach guided by the mandibular branch and 18 underwent this approach guided by the zygomatic branch. The mean surgical time and amount of bleeding using the retrograde approach were 70.7 minutes and 33.9 g, respectively. Two of the 35 patients in the retrograde group exhibited a temporary facial deficit.
Collapse
|
24
|
Fujimura S, Hori R, Hamaguchi K, Okanoue Y, Wakizaka H, Shoji K. Four-dimensional computed tomographic angiography of an arteriovenous fistula in the neck. Laryngoscope 2013; 123:2723-7. [PMID: 23918693 DOI: 10.1002/lary.24032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2012] [Revised: 12/30/2012] [Accepted: 01/14/2013] [Indexed: 11/10/2022]
Abstract
Arteriovenous fistula (AVF), a type of vascular anomaly, is a relatively uncommon disease characterized by abnormal connections between the arterial and venous systems. Recently, remarkable advances in four-dimensional computed tomographic angiography (4D-CTA) have enabled detailed analysis of the hemodynamic features of vascular anomalies, which cannot be achieved by conventional imaging modalities. We report a case of AVF in a 59-year-old female presenting as a right neck mass. Using reconstructed animations from various viewing angles, 4D-CTA could clearly visualize not only a mass but the feeding artery and draining vein from the mass. 4D-CTA was useful for the diagnosis of AVF and to determine the surgical strategy preoperatively.
Collapse
|
25
|
Kikuchi T, Kobashi Y, Hirano T, Tode N, Santoso A, Tamada T, Fujimura S, Mitsuhashi Y, Honda Y, Nukiwa T, Kaku M, Watanabe A, Ichinose M. Mycobacterium avium genotype is associated with the therapeutic response to lung infection. Clin Microbiol Infect 2013; 20:256-62. [PMID: 23829301 PMCID: PMC4231998 DOI: 10.1111/1469-0691.12285] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2013] [Revised: 05/10/2013] [Accepted: 05/27/2013] [Indexed: 01/12/2023]
Abstract
Factors that can interfere with the successful treatment of Mycobacterium avium lung infection have been inadequately studied. To identify a potent predictor of therapeutic responses of M. avium lung infection, we analyzed variable number tandem repeats (VNTR) at 16 minisatellite loci of M. avium clinical isolates. Associations between the VNTR profiling data and a therapeutic response were evaluated in 59 subjects with M. avium lung infection. M. avium lung infection of 30 subjects in whom clarithromycin-containing regimens produced microbiological and radiographic improvement was defined as responsive disease, while that of the remaining 29 subjects was defined as refractory disease. In phylogenetic analysis using the genotypic distance aggregated from 16-dimensional VNTR data, 59 M. avium isolates were divided into three clusters, which showed a nearly significant association with therapeutic responses (p 0.06). We then subjected the raw 16-dimensional VNTR data directly to principal component analysis, and identified the genetic features that were significantly associated with the therapeutic response (p <0.05). By further analysis of logistic regression with a stepwise variable-selection, we constructed the highest likelihood multivariate model, adjusted for age, to predict a therapeutic response, using VNTR data from only four minisatellite loci. In conclusion, we identified four mycobacterial minisatellite loci that together were associated with the therapeutic response of M. avium lung infections.
Collapse
Affiliation(s)
- T Kikuchi
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan; Department of Respiratory Medicine, Tohoku University Hospital, Sendai, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
26
|
Saito A, Sawada K, Fujimura S, Suzuki H, Hirukawa T, Tatsumi R, Kanai G, Takahashi H, Miyakogawa T, Sanechika N, Fukagawa M, Kakuta T. Evaluation of bioartificial renal tubule device prepared with lifespan-extended human renal proximal tubular epithelial cells. Nephrol Dial Transplant 2012; 27:3091-9. [DOI: 10.1093/ndt/gfr755] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
27
|
Murakami K, Fukata N, Sasaki S, Ishioka K, Nakamura KG, Kitajima M, Fujimura S, Kikuchi J, Haneda H. Formation Of Hydrogen Molecules In Crystalline Silicon Treated With Atomic Hydrogen. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-442-269] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AbstractHydrogen molecules have been formed in crystalline silicon at various temperatures by a hydrogen-atom remote treatment. The Raman spectrum of the vibrational lines of hydrogen molecules in crystalline silicon is detected for silicon samples treated at temperatures between 250 and 500° C. The maximum production is obtained at 400° C. The Raman spectrum of hydrogen molecules in silicon observed at room temperature exhibits a frequency shift of around 4158 cm−1 and a very broad half-width of approximately 34 cm−1. Isotope shift also can be observed at around 2990 cm−1 in silicon treated with deuterium atoms at 400° C. The frequency shifts of the observed lines are in close agreement with those reported for molecular hydrogen and deuterium in gas, liquid, and solid phases. We discuss a model for the hydrogen molecule configuration and rule out the possibility of high-pressure hydrogen molecular gas in microvoids in crystalline silicon. These results indicate that hydrogen molecules exist at the tetrahedral interstitial sites in crystalline silicon.
Collapse
|
28
|
Daito H, Kikuchi T, Sakakibara T, Gomi K, Damayanti T, Zaini J, Tode N, Kanehira M, Koyama S, Fujimura S, Ebina M, Ishii KJ, Akira S, Takai T, Watanabe A, Nukiwa T. Mycobacterial hypersensitivity pneumonitis requires TLR9-MyD88 in lung CD11b+ CD11c+ cells. Eur Respir J 2011; 38:688-701. [PMID: 21273385 DOI: 10.1183/09031936.00177110] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Mycobacteria are among the most common causes of hypersensitivity pneumonitis (HP), but controversy persists with regard to the involvement of the infectious potency of the organism in mycobacterial HP (hot tub lung). This study aimed to establish a mouse model of hot tub lung to clarify its pathophysiology. Mice were exposed intranasally to formalin-killed Mycobacterium avium from a patient with hot tub lung (HP strain) or chronic pulmonary infection (non-HP strain), and bronchoalveolar lavage fluids and lung tissues were evaluated for allergic inflammation. Dead M. avium HP strain, but not non-HP strain, elicited marked HP-like pulmonary inflammation in wild-type mice. Although the inflammation was induced in mice lacking CD4 or CD8, the induction of HP-like responses was prevented in mice lacking myeloid differentiation factor (MyD)88 or Toll-like receptor (TLR)9. Cultured lung CD11c+ cells responded to M. avium in a TLR9-dependent manner, and reconstitution of TLR9-/- mice with lung CD11c+ cells from wild-type mice restored the inflammatory responses. Further investigation revealed that pulmonary exposure to M. avium HP strain increased the number of lung CD11b+ CD11c+ cells (dendritic cells) through TLR9 signalling. Our results provide evidence that hot tub lung develops via the mycobacterial engagement of TLR9-MyD88 signalling in lung CD11b+ dendritic cells independent of the mycobacterial infectious capacity.
Collapse
Affiliation(s)
- H Daito
- Dept of Pulmonary Medicine, Tohoku University Hospital, Aobaku, Sendai, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
29
|
Abstract
CONCLUSION In cases of labyrinthine fistulae, we performed complete removal of the cholesteatoma matrix in a one-stage procedure, resulting in a satisfactory bone conduction (BC) hearing preservation rate. Preoperative evaluation of labyrinthine fistulae using high resolution computed tomography (HRCT) detected 86% of cases, and this contributed to favorable results achieved with the surgical treatment of labyrinthine fistulae. We aimed to review cases of labyrinthine fistulae to summarize their outcomes and establish standards of management. METHODS This was a retrospective chart review of 22 patients with labyrinthine fistulae at Kyoto University Hospital from 2001 to 2009. Patient background (age and sex), location and stage of the fistulae, facial nerve status, preoperative and postoperative BC hearing levels, preoperative CT diagnosis, and surgical procedures were analyzed. RESULTS The incidence rate of the labyrinthine fistulae was 11.2%. All but one patient had labyrinthine fistula due to cholesteatoma. The fistulae were found in the lateral semicircular canal in 17 cases (77%) and in multiple organs in 4 cases (18%). The BC hearing level was preoperatively scaled out in seven cases. Preoperative HRCT scan revealed the presence of fistulae in 19 cases (86%). For all cases of cholesteatoma, the matrix was completely removed in a one-stage procedure and the fistulae were sealed using bone pate, temporal fascia, and temporal bones. Of the 15 cases with residual BC hearing ability, BC hearing was preserved in up to 12 cases. Two cases with postoperative deterioration of BC hearing had stage 4 fistulae in the cochleae.
Collapse
Affiliation(s)
- Norio Yamamoto
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
| | | | | | | | | | | |
Collapse
|
30
|
Kikuchi Y, Ohara N, Ueda O, Hirai K, Shibata Y, Nakayama K, Fujimura S. Porphyromonas gingivalis mutant defective in a putative extracytoplasmic function sigma factor shows a mutator phenotype. ACTA ACUST UNITED AC 2009; 24:377-83. [PMID: 19702950 DOI: 10.1111/j.1399-302x.2009.00526.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
INTRODUCTION Porphyromonas gingivalis is implicated as a major pathogen in the development and progression of chronic periodontitis. P. gingivalis must possess the ability to tolerate stress signals outside the cytoplasmic membrane by transcriptional activation of genes encoding proteins involved in defense or repair processes. Some bacteria utilize a distinct subfamily of sigma factors to regulate extracytoplasmic function (hence termed the ECF subfamily). METHODS To elucidate their role in P. gingivalis, a chromosomal mutant carrying a disruption of an ECF sigma factor PG1318-encoding gene was constructed. Hemagglutination and proteolytic activities were measured in the PG1318-defective mutant. Reverse transcription-polymerase chain reaction (RT-PCR) analysis and southern blot analysis were used to assess transcription of kgp in the PG1318-defective mutant. Frequency of spontaneous mutation that conferred resistance to l-trifluoromethionine was measured in the PG1318-defective mutant. RESULTS The PG1318-defective mutant formed non-pigmented colonies on blood agar plates at a relatively high frequency. Arginine-specific and lysine-specific proteinase activities of the non-pigmented variants were remarkably decreased compared with those of the parent strain and the pigmented variants. RT-PCR analysis showed that kgp was not transcribed in some non-pigmented variants and southern blot analysis revealed that there was a deletion in their kgp region. Frequency of mutation conferring resistance to l-trifluoromethionine was significantly higher in the PG1318-defective mutant than in the wild-type. CONCLUSION These results suggest that PG1318 plays a role in the regulation of mutation frequency in the bacterium.
Collapse
Affiliation(s)
- Y Kikuchi
- Department of Oral Microbiology, Matsumoto Dental University, Shiojiri, Japan
| | | | | | | | | | | | | |
Collapse
|
31
|
Suzuki T, Tabata T, Inoue K, Fujikawa N, Fujimura S, Murakami K. [Lymphangiomyomatosis pathologically diagnosed by surgery for pneumothorax]. Kyobu Geka 2009; 62:575-578. [PMID: 19588830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We report a case of incipient pulmonary lymphangioleiomyomatosis (LAM) diagnosed by histopathological examination of excised lung. A 28-year-old woman was referred to our hospital because of recurrent left pneumothorax. Computed tomography showed no abnormality except for small bullae in the right middle lobe. She underwent video-assisted thoracoscopic surgery and we excised the apex of the left lung showing hypertrophic pleura. Microscopic examinations of the surgical specimen revealed multiple focal accumulations of small spindle-shaped cells stained positively with anti-HMB-45 antibody, specific for LAM. Furthermore, among these multiple lesions, vascular invasion of HMB-45 positive cells were observed, which demonstrates invasive and metastatic potential of LAM cells as previously reported. This case implicates a need for a careful pathological examination of excised specimens in female cases of surgically treated pneumothorax even though pre-operation or macroscopic examination shows no specific findings.
Collapse
Affiliation(s)
- T Suzuki
- Department of Thoracic Surgery, Tohoku Koseinenkin Hospital, Sendai, Japan
| | | | | | | | | | | |
Collapse
|
32
|
Kikuchi T, Watanabe A, Gomi K, Sakakibara T, Nishimori K, Daito H, Fujimura S, Tazawa R, Inoue A, Ebina M, Tokue Y, Kaku M, Nukiwa T. Association between mycobacterial genotypes and disease progression in Mycobacterium avium pulmonary infection. Thorax 2009; 64:901-7. [DOI: 10.1136/thx.2009.114603] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
33
|
Otsuka S, Aoyama T, Furu M, Ito K, Jin Y, Nasu A, Fukiage K, Kohno Y, Maruyama T, Kanaji T, Nishiura A, Sugihara H, Fujimura S, Otsuka T, Nakamura T, Toguchida J. PGE2 signal via EP2 receptors evoked by a selective agonist enhances regeneration of injured articular cartilage. Osteoarthritis Cartilage 2009; 17:529-38. [PMID: 18922704 DOI: 10.1016/j.joca.2008.09.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2008] [Accepted: 09/02/2008] [Indexed: 02/02/2023]
Abstract
OBJECTIVE The effect of the prostaglandin E2 (PGE2) signal through prostaglandin E receptor 2 (EP2) receptors on the repair of injured articular cartilage was investigated using a selective agonist for EP2. METHODS Chondral and osteochondral defects were prepared on the rabbit femoral concave in both knee joints, and gelatin containing polylactic-co-glycolic acid microspheres conjugated with or without the EP2 agonist was placed nearby. Animals were sacrificed at 4 or 12 weeks post-operation, and regenerated cartilage tissues and subchondral structure remodeling were evaluated by histological scoring. The quality of regenerated tissues was also evaluated by the immunohistochemical staining of EP2, type II collagen, and proliferating cell nuclear antigen (PCNA). As an evaluation of side effects, the inflammatory reaction of the synovial membrane was analyzed based on histology and the mRNA expression of matrix metalloproteinase3 (MMP3), tissue inhibitor of metalloproteinase 3 (TIMP3), and interleukin-1 beta (IL-1 beta). Also, the activity of MMP3 and the amount of tumor necrosis factor-alpha (TNF-alpha) and C-reactive protein in joint fluid were measured. RESULTS In both models, the EP2 agonist enhanced the regeneration of the type II collagen-positive tissues containing EP2- and PCNA-positive chondrocytes, and the histological scale of regenerated tissue and subchondral bone was better than that of on the control side, particularly at 12 weeks post-operation. No inflammatory reaction in the synovial membrane was observed, and no induction of pro-inflammatory cytokines was found in joint fluid. CONCLUSION Selective stimulation of the PGE2 signal through EP2 receptors by a specific agonist promoted regeneration of cartilage tissues with a physiological osteochondral boundary, suggesting the potential usefulness of this small molecule for the treatment of injured articular cartilages.
Collapse
Affiliation(s)
- S Otsuka
- Department of Tissue Regeneration, Institute for Frontier Medical Sciences, Kyoto University, Kyoto, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
34
|
Imanari M, Kadowaki M, Fujimura S. Regulation of taste-active components of meat by dietary branched-chain amino acids; effects of branched-chain amino acid antagonism. Br Poult Sci 2008; 49:299-307. [DOI: 10.1080/00071660802155080] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
|
35
|
Abstract
1. Regulation of meat taste is one effective method for improvement of meat quality. In this study, effects of dietary leucine (Leu) content on taste-active components, especially free glutamate (Glu), in meat were investigated. 2. Broiler chickens (28 d old) were fed on diets with graded dietary Leu content (100, 130 or 150% of Leu requirement in NRC, 1994) for 10 d before marketing. Taste-active components of meat (free amino acids and ATP metabolites) and sensory score of meat soup were estimated. 3. Free Glu content, the main taste-active component of meat, was significantly increased by dietary Leu. Compared with the Leu 130% group, free Glu was increased by 17% in the Leu 100% group. Free Glu of meat tended to decrease in the Leu 150% group. In contrast, inosine monophosphate content in meat did not change among all groups. 4. Sensory evaluation of meat soup from the Leu 100 and 150% groups showed that they had different meat tastes. Sensory scores of overall preference, umami taste and chicken-like taste were significantly higher in the Leu 100% group. 5. These results suggest that dietary Leu content is a regulating factor of free Glu in meat. Decreasing dietary Leu induces an increase in the free Glu content of meat and improves meat taste.
Collapse
Affiliation(s)
- M Imanari
- Graduate School of Science and Technology, Niigata University, Niigata, Japan
| | | | | |
Collapse
|
36
|
Fujimura S. P812 Haemoglobin-binding activity and haemoglobin-binding protein of Prevotella nigrescens. Int J Antimicrob Agents 2007. [DOI: 10.1016/s0924-8579(07)70653-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
37
|
Shibata M, Matsumoto K, Aikawa K, Muramoto T, Fujimura S, Kadowaki M. Gene expression of myostatin during development and regeneration of skeletal muscle in Japanese Black Cattle1. J Anim Sci 2006; 84:2983-9. [PMID: 17032792 DOI: 10.2527/jas.2006-118] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Myostatin is a specific negative regulator of skeletal muscle growth and is regarded as one of the most important factors for myogenesis. The aim of the current study was to analyze the developmental change in the gene expression of myostatin and an adipogenic transcription factor (peroxisome proliferator-activated receptor lambda2) in the semitendinosus muscle of Japanese Black Cattle throughout the whole life cycle. An additional aim was to compare the temporal expression patterns of myostatin and relevant myogenic regulatory factors (MRF) mRNA during muscle regeneration after frostbite injury at 16 mo of age. The developmental pattern of myostatin gene expression exhibited 2 peaks: the greatest expression occurred in utero (P <0.05) and the second greatest occurred at 16 mo of age (P <0.05). The greatest level of peroxisome proliferator-activated receptor lambda2 expression was observed at 16 mo of age (P <0.05), which paralleled myostatin expression. During frostbite-induced muscle regeneration, gene expression for myostatin and 4 MRF; i.e., Myf5, MyoD, myogenin and MRF4, showed contrasting responses. Myostatin mRNA dramatically declined by 68.1 and 82.6% at 3 and 5 d after injury (P <0.05), respectively, which paralleled its protein expression, and was restored at 10 d. In contrast, the expressions of all 4 MRF mRNA were low initially but increased by 5 d after injury (P <0.05) and then remained constant or decreased slightly. These results suggest that myostatin may play a role in muscle marbling in the fattening period by decreasing myogenesis and increasing adipogenesis, and that the interaction between myostatin and MRF genes may take place at an early stage of skeletal muscle regeneration.
Collapse
Affiliation(s)
- M Shibata
- National Agricultural Research Center for Western Region, Ohda-shi, Shimane-ken, 694-0013, Japan.
| | | | | | | | | | | |
Collapse
|
38
|
Fujimura S, Kato S, Oda M, Miyahara M, Ito Y, Kimura K, Kawamura T, Ohnuma M, Tateno H, Watanabe A. Detection ofLactobacillus gasseriOLL2716 strain administered with yogurt drink in gastric mucus layer in humans. Lett Appl Microbiol 2006; 43:578-81. [PMID: 17032235 DOI: 10.1111/j.1472-765x.2006.02017.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
In animal models and human trials, Lactobacillus gasseri OLL2716 (LG21) strain suppressed Helicobacter pylori colonization in the stomach. The aim of the present study was to clarify whether orally administered LG21 strain can enter the gastric mucus layer. Biopsy samples were taken from the gastric antrum and corpus of two healthy volunteers (H. pylori infected and non-infected) who drank yogurt supplemented with LG21 strains. DNA of LG21 and H. pylori in the mucus layer was detected using the laser-assisted microdissection and non-contact pressure catapulting (LMPC) method and the semi-nested PCR method with primer sets of RNA helicases of superfamily II gene-Insertion sequence for LG21 strain and those of ureA gene for H. pylori. In the volunteer with H. pylori infection, DNA fragments of LG21- and H. pylori-specific regions from both antrum and corpus were amplified, whereas in a non-infected volunteer, only the LG21 DNA from the antrum was amplified. The present study demonstrated that LG21 strains administered through a yogurt drink can enter into the gastric mucus layer. Our novel method may be useful in studying gastric probiotics for H. pylori infection.
Collapse
Affiliation(s)
- S Fujimura
- Department of Microbiology, Miyagi University, Miyagi, Japan.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
39
|
Fujimura S, Shibata Y, Ueda O, Hirai K. Iron uptake of a periodontal pathogen, porphyromonas gingivalis. Int J Oral Maxillofac Surg 2005. [DOI: 10.1016/s0901-5027(05)81543-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
40
|
Niikawa H, Watanabe S, Hayasaka H, Sasaki Y, Nakamura R, Honda T, Yoshimura H, Murakami K, Fujimura S. [Perforating mediastinal mature teratoma associated with acute cardiac tamponade; report of a case]. Kyobu Geka 2004; 57:901-4. [PMID: 15366580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Abstract
We report a case of the mediastinal teratoma associated with acute cardiac tamponade followed by emergency operation. This tumor causes a variety of complications, but reports of acute cardiac tamponade have been rare. 20-year-old male admitted into our hospital with complaint of the chest pain, who was diagnosed with mediastinal tumor. She was admitted due to sudden fever up, and 5 days after admission, the complaint of severe epigastralgia and abdominal swelling were occurred. A chest X-ray film and chest computed tomography (CT) revealed cardiac tamponade. We carried out emergency surgical pericardial drainage and extirpation of the tumor. The tumor was composed of cystic part involving of dark green fluid macroscopically. The amylase level in this fluid was 42 U/l. We observed a small hole on the pericardial sac beside the base of ascending aorta. The amylase level in pericardial effusion was 19 U/l. Histopathological diagnosis was mature teratoma perforating into pericardiac sac, which included skin, bronchus and pancreatic tissue. We concluded that the progress of the tumor and the mechanical inflammation were major cause of perforation of the tumor into the pericardial sac, and autodigestion by enzyme from pancreas was minor cause of perforation.
Collapse
|
41
|
Abstract
AIMS The major transmission route of Helicobacter pylori remains unclear. In this study, we examined H. pylori in the environmental waters in Japan. METHODS AND RESULTS A total of 24 water samples were collected from the upper, middle and downstream reaches of four Japanese rivers. Helicobacter pylori-specific DNA was examined using nested PCR. In addition, 224 children who lived near one river were studied by the stool antigen test for H. pylori prevalence. Helicobacter pylori DNA was detected in the water from the middle and downstream reaches of all four rivers, but not in the upper reaches. Helicobacter pylori was not found in cultured water samples with positive PCR results. Helicobacter pylori prevalence in the children examined was 9.8% for those living near the middle reaches and 23.8% nearby downstream, both of which were higher than the value in an area distant from the river (0%) (both, P < 0.01). CONCLUSIONS Difference in H. pylori prevalence in the children may be related to the presence of H. pylori in the river. The results of this study showed that H. pylori DNA is frequently present in river water from the middle and downstream reaches in which the human biosphere is embedded. SIGNIFICANCE AND IMPACT OF THE STUDY It is suggested that river water in the natural environment could be a risk factor for H. pylori transmission.
Collapse
Affiliation(s)
- S Fujimura
- Department of Microbiology, Miyagi University, Miyagi Prefecture, Japan.
| | | | | |
Collapse
|
42
|
Hamada C, Ohta M, Wada H, Fujimura S, Kodama K, Imaizumi M, Nakanishi Y, Matsuoka N. Survival benefit of oral UFT for adjuvant chemotherapy after completely resected non-small-cell lung cancer. J Clin Oncol 2004. [DOI: 10.1200/jco.2004.22.90140.7002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- C. Hamada
- Tokyo University of Science, Tokyo, Japan; Japan Lung Cancer Research Group, Tokyo, Japan; West Japan Study Group for Lung Cancer Surgery, Kyoto, Japan; North-east Japan Study Group for Lung Cancer, Sendai, Japan; Osaka Lung Cancer Study Group, Osaka, Japan; Adjuvant Chemotherapy for Lung Cancer Study Group, Nagoya, Japan
| | - M. Ohta
- Tokyo University of Science, Tokyo, Japan; Japan Lung Cancer Research Group, Tokyo, Japan; West Japan Study Group for Lung Cancer Surgery, Kyoto, Japan; North-east Japan Study Group for Lung Cancer, Sendai, Japan; Osaka Lung Cancer Study Group, Osaka, Japan; Adjuvant Chemotherapy for Lung Cancer Study Group, Nagoya, Japan
| | - H. Wada
- Tokyo University of Science, Tokyo, Japan; Japan Lung Cancer Research Group, Tokyo, Japan; West Japan Study Group for Lung Cancer Surgery, Kyoto, Japan; North-east Japan Study Group for Lung Cancer, Sendai, Japan; Osaka Lung Cancer Study Group, Osaka, Japan; Adjuvant Chemotherapy for Lung Cancer Study Group, Nagoya, Japan
| | - S. Fujimura
- Tokyo University of Science, Tokyo, Japan; Japan Lung Cancer Research Group, Tokyo, Japan; West Japan Study Group for Lung Cancer Surgery, Kyoto, Japan; North-east Japan Study Group for Lung Cancer, Sendai, Japan; Osaka Lung Cancer Study Group, Osaka, Japan; Adjuvant Chemotherapy for Lung Cancer Study Group, Nagoya, Japan
| | - K. Kodama
- Tokyo University of Science, Tokyo, Japan; Japan Lung Cancer Research Group, Tokyo, Japan; West Japan Study Group for Lung Cancer Surgery, Kyoto, Japan; North-east Japan Study Group for Lung Cancer, Sendai, Japan; Osaka Lung Cancer Study Group, Osaka, Japan; Adjuvant Chemotherapy for Lung Cancer Study Group, Nagoya, Japan
| | - M. Imaizumi
- Tokyo University of Science, Tokyo, Japan; Japan Lung Cancer Research Group, Tokyo, Japan; West Japan Study Group for Lung Cancer Surgery, Kyoto, Japan; North-east Japan Study Group for Lung Cancer, Sendai, Japan; Osaka Lung Cancer Study Group, Osaka, Japan; Adjuvant Chemotherapy for Lung Cancer Study Group, Nagoya, Japan
| | - Y. Nakanishi
- Tokyo University of Science, Tokyo, Japan; Japan Lung Cancer Research Group, Tokyo, Japan; West Japan Study Group for Lung Cancer Surgery, Kyoto, Japan; North-east Japan Study Group for Lung Cancer, Sendai, Japan; Osaka Lung Cancer Study Group, Osaka, Japan; Adjuvant Chemotherapy for Lung Cancer Study Group, Nagoya, Japan
| | - N. Matsuoka
- Tokyo University of Science, Tokyo, Japan; Japan Lung Cancer Research Group, Tokyo, Japan; West Japan Study Group for Lung Cancer Surgery, Kyoto, Japan; North-east Japan Study Group for Lung Cancer, Sendai, Japan; Osaka Lung Cancer Study Group, Osaka, Japan; Adjuvant Chemotherapy for Lung Cancer Study Group, Nagoya, Japan
| |
Collapse
|
43
|
Hattori T, Hirai K, Wang P, Fujimura S. Proliferation of cultured human gingival fibroblasts caused by isradipine, a dihydropyridine-derivative calcium antagonist. Eur J Med Res 2004; 9:313-5. [PMID: 15257873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/30/2023] Open
Abstract
As it was reported earlier that isradipine, a Ca superset 2+ antagonist of dihydropyridine derivative class, caused regression of nifedipine-induced hyperplasia of human gingiva, experiments were performed to examine whether or not isradipine would solely inhibit the proliferation of cultured gingival fibroblasts. Normal human gingival fibroblast Gin-1 cells were used to test the impact of this medication. Fibroblast proliferation in the presence of isradipine (10 microM) was examined by using the reagent water-soluble tetrazolium-1 (WST-1). The level of basic fibroblast growth factor (bFGF) in the cell-free supernatant of each well was determined by using an enzyme-linked immunosorvent assay (ELISA) kit. The production of type I collagen was assayed by ELISA. Isradipine significantly enhanced the cell proliferation from the second day of the culture period. Also, isradipine raised the level of bFGF in the culture medium. The same concentration, also significantly enhanced the production of type I collagen. In conclusion, we were able to prove that isradipine causes the proliferation of cultured gingival fibroblasts as well as other dihydropyridine-derivative Ca superset 2+ antagonists do. In order to prevent the gingival overgrowth, it is advisable to be very careful in the use of isradipine as a therapy for hypertension and other indications.
Collapse
Affiliation(s)
- T Hattori
- Department of Dental Pharmacology, Matsumoto Dental University, Shiojiri 399-0781, Japan.
| | | | | | | |
Collapse
|
44
|
Hamada C, Ohta M, Wada H, Fujimura S, Kodama K, Imaizumi M, Nakanishi Y, Matsuoka N. 768 Efficacy of oral UFT for adjuvant chemotherapy after complete resection of non-small cell lung cancer: Meta-analysis of six randomized trials in 2003 patients. EJC Suppl 2003. [DOI: 10.1016/s1359-6349(03)90793-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
|
45
|
Shibata Y, Miwa Y, Hirai K, Fujimura S. Purification and partial characterization of a dipeptidyl peptidase from Prevotella intermedia. Oral Microbiol Immunol 2003; 18:196-8. [PMID: 12753473 DOI: 10.1034/j.1399-302x.2003.00057.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A peptidase hydrolyzed X-Pro-p-nitroanilide was purified from the cell extract of Prevotella intermedia ATCC 25611 by ion-exchange chromatography and hydrophobic interaction chromatography. The purified enzyme exhibited a molecular size of 74 kDa from sodium dodecyl sulfate-polyacrylamide gel electrophoresis and the maximum enzyme activity was found between pH 7.0 and pH 7.5. This peptidase was a serine enzyme and hydrolyzed Lys-Pro-p-nitroanilide, Arg-Pro-p-nitroanilide, and Ala-Pro-p-nitroanilide, but Lys-Ala-p-nitroanilide was not split. The enzyme may be classified as a dipeptidyl peptidase IV.
Collapse
Affiliation(s)
- Y Shibata
- Department of Oral Microbiology, Matsumoto Dental University, Shiojiri, Japan
| | | | | | | |
Collapse
|
46
|
Hirai K, Yoshizawa H, Hasegawa H, Ueda O, Shibata Y, Fujimura S. Comparison of ability of apoptosis induction by lipopolysaccharide of Porphyromonas gingivalis with Escherichia coli. Eur J Med Res 2003; 8:208-11. [PMID: 12844475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023] Open
Abstract
We compared effects of Porphyromonas gingivalis LPS with Escherichia coli LPS to the murine peritoneal macrophage. E. coli LPS possessed a threshold dose between 100 micro g and 10 micro g, the higher dose induced apoptosis at the murine peritoneal macrophage while the lower dose did not. The ability of apoptosis induction at the murine peritoneal macrophage of P. gingivalis LPS was weaker than E. coli LPS. P. gingivalis LPS did not induce significant apoptosis in all tested dose. However, the morphology of the peritoneal macrophage treated by P. gingivalis LPS was obviously different from that of the unstimulated cells.
Collapse
Affiliation(s)
- Kaname Hirai
- Department of Oral Microbiology, School of Dentistry, Matsumoto Dental University, 1780 Gobara, Hirooka, Shiojiri-shi, Nagano-ken, 399-0781 Japan.
| | | | | | | | | | | |
Collapse
|
47
|
Abstract
AIMS To investigate the existence of Helicobacter pylori in cow's milk as one of the foods which most Japanese children eat. METHODS AND RESULTS Detection of H. pylori was demonstrated by the semi-nested polymerase chain reaction (PCR), a culture method and electron microscopy. Semi-nested PCR demonstrated the ureA gene of H. pylori in 13 of 18 (72.2%) raw milk samples and in 11 of 20 (55%) commercial pasteurized milk samples. Helicobacter pylori binding immunomagnetic beads with H. pylori-specific goat anti-H. pylori antibody was shown by electron microscopy in both raw and pasteurized milk positive for the ureA gene. Helicobacter pylori was cultured in one raw milk sample, whereas it was not cultured in pasteurized milk samples. CONCLUSIONS, SIGNIFICANCE AND IMPACT OF THE STUDY There is a possibility that cow's milk is a transmission vehicle in childhood H. pylori infection, although we failed to confirm the survival of H. pylori in pasteurized milk.
Collapse
Affiliation(s)
- S Fujimura
- Departments of Microbiology and Gastroenterology, Miyagi University, Miyagi prefecture, Japan.
| | | | | | | | | |
Collapse
|
48
|
Fujimura S. Dipeptidyl peptidase with strict substrate specificity of an anaerobic periodontopathogen Porphyromonas gingivalis. FEMS Microbiol Lett 2002. [DOI: 10.1016/s0378-1097(02)00495-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
|
49
|
Fujimura S. [Iron uptake mechanism of periodontopathogens with special regards to Porphyromonas gingivalis]. Nihon Saikingaku Zasshi 2002; 56:587-94. [PMID: 11761880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Affiliation(s)
- S Fujimura
- Department of Oral Microbiology, Matsumoto Dental University, 1780 Gobara, Hirooka, Shiojiri, 399-0781
| |
Collapse
|
50
|
Watanabe A, Tokue Y, Takahashi H, Kikuchi T, Kobayashi T, Gomi K, Fujimura S, Yasui S, Murayama Y, Nukiwa T. Comparative in-vitro activity of carbapenem antibiotics against respiratory pathogens isolated between 1999 and 2000. J Infect Chemother 2001; 7:267-71. [PMID: 11810597 DOI: 10.1007/s101560170026] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2001] [Indexed: 11/25/2022]
Abstract
We investigated the antibacterial activity of 12 antibiotics, inclusive of four carbapenems, against 167 strains of respiratory pathogens isolated between 1999 and 2000. Thirty strains of methicillin-susceptible Staphylococcus aureus (MSSA), 28 strains of methicillin-resistant S. aureus (MRSA), 11 strains of penicillin-susceptible Streptococcus pneumoniae (PSSP), 29 strains of penicillin-resistant S. pneumoniae (PRSP), 30 strains of Pseudomonas aeruginosa, 14 strains of Moraxella catarrhalis, and 25 strains of Haemophilus influenzae were examined. The minimum inhibitory concentration (MICs)50/90 (microg/ml) of imipenem, panipenem, meropenem, and biapenem against the clinical isolates obtained between 1999 and 2000 were: 0.06/0.25, 0.12/0.25, 0.12/0.25, and 0.12/0.25, respectively, against MSSA; 16/32, 16/32, 16/32, and 8/32 against MRSA; < or = 0.015/0.06, < or = 0.015/0.03, 0.03/0.12, and < or = 0.015/0.06 against PSSP; 0.12/0.25, 0.03/0.06, 0.25/0.5, and 0.12/0.25 against PRSP; 1/8, 2/8, 0.5/2, and 2/16 against P. aeruginosa; 0.06/0.06, 0.03/0.06, < or = 0.015/0.06, and 0.06/0.12 against M. catarrhalis; and 1/4, 1/4, 0.12/0.25, and 2/4 against H. influenzae. A comparison of the antibacterial activity of the four carbapenems with that found in our previous studies showed no significant difference in the susceptibility of clinical isolates, except for a slight decrease in the susceptibility of MSSA. Carbapenems have remained effective for severe infections. The MIC data showed that imipenem and panipenem were more active than meropenem and biapenem against gram-positive bacteria, and that meropenem and biapenem were more active than imipenem and panipenem against gram-negative bacteria. As only meropenem had an MIC90 below the breakpoint of pneumonia against all species except MRSA, meropenem was considered to be the most potent of the four carbapenems studied.
Collapse
Affiliation(s)
- A Watanabe
- Department of Respiratory Oncology and Molecular Medicine, Institute of Development, Aging and Cancer, Tohoku University, 4-1 Seiryo-cho, Aoba-ku, Sendai 980-8575, Japan.
| | | | | | | | | | | | | | | | | | | |
Collapse
|