1.A Case of Coronary-Pulmonary Artery Fistula with a Giant Aneurysm
Koichi Nagaya ; Susumu Nagamine ; Kenji Osaka ; Hidemitsu Kakihata
Japanese Journal of Cardiovascular Surgery 2006;35(2):81-84
A 67-year-old woman was admitted to our hospital for examination of a chest X-ray abnormality. Chest computed tomography and coronary angiography revealed a giant aneurysm and coronary-pulmonary artery fistula originating from both the proximal left anterior descending and the right coronary artery. The fistula was ligated and the aneurysm was resected by means of extracorporeal circulation. The postoperative course was uneventful. Computed tomography and coronary angiography showed that the aneurysm and coronary-pulmonary artery fistula had completely disappeared.
2.Reoperation after Corrective Surgery for Right Ventricular Outflow Tract Obstruction.
Mikio Ohmi ; Mitsuaki Sadahiro ; Kenji Osaka ; Susumu Nagamine ; Atsushi Iguchi ; Koichi Tabayashi
Japanese Journal of Cardiovascular Surgery 1996;25(1):1-6
In the past 13 years, 17 patients underwent reoperation after intracardiac repair, including reconstruction of the right ventricular outflow tract. Primary diagnoses of the cardic anomalies were tetralogy of Fallot (TOF) (8 patients), extreme type (TOF) (4 patients), TOF with absent pulmonary valve (1 patient), double outlet right ventricle (DORV) (2 patients), truncus arteriosus (1 patient) and transposition of the great arteries (TGA) (1 patient). Patients were divided into 4 groups based on the surgical procedures for reconstruction of the right ventricular outflow tract as follows: Group A, porcine valved conduit; Group B, autologous pericardial valve bearing tube graft; Group C, transannular patch; Group D, outflow patch with pulmomary valvotomy. The main reason for reoperation in groups A and B was pulmonary stenosis due to calcification of the porcine valve or shrinkage of the pericardial tube graft. Average periods between corrective surgery and reoperation were 7 and 13 years in groups A and B, respectively. Reoperation was performed for massive tricuspid regurgitation and residual shunt, 15 and 24 years after previous operations in groups C and D, respectively. Low cardiac output syndrome, proconged right heart and respiratory failure were major postoperative complications in groups A, B and C. Furthermore, one patient in group A and one other in group C died in the long-term period after reoperation. Both patients had had markedly dilated hearts associated with frequent PVCs. In conclusion, earlier reoperation for progressive and/or residual lesions should be performed to obtain better surgical outcome and quality of life of the patients.
3.Small Bowel Endoscopy in Inflammatory Bowel Disease.
Hirokazu YAMAGAMI ; Kenji WATANABE ; Noriko KAMATA ; Mitsue SOGAWA ; Tetsuo ARAKAWA
Clinical Endoscopy 2013;46(4):321-326
Crohn disease (CD) is a chronic inflammatory bowel disease that affects the entire gastrointestinal tract but is most frequently localized to the large and small bowel. Small bowel endoscopy helps with the differential diagnosis of CD in suspected CD patients. Early diagnosis of CD is preferable for suspected CD conditions to improve chronic inflammatory infiltrates, fibrosis. Small bowel endoscopy can help with the early detection of active disease, thus leading to early therapy before the onset of clinical symptoms of established CD. Some patients with CD have mucosal inflammatory changes not in the terminal ileum but in the proximal small bowel. Conventional ileocolonoscopy cannot detect ileal involvement proximal to the terminal ileum. Small bowel endoscopy, however, can be useful for evaluating these small bowel involvements in patients with CD. Small bowel endoscopy by endoscopic balloon dilation (EBD) enables the treatment of small bowel strictures in patients with CD. However, many practical issues still need to be addressed, such as endoscopic findings for early detection of CD, application compared with other imaging modalities, determination of the appropriate interval for endoscopic surveillance of small bowel lesions in patients with CD, and long-term prognosis after EBD.
Capsule Endoscopy
;
Constriction, Pathologic
;
Crohn Disease
;
Diagnosis, Differential
;
Early Diagnosis
;
Endoscopy
;
Fibrosis
;
Gastrointestinal Tract
;
Humans
;
Ileum
;
Inflammatory Bowel Diseases
;
Prognosis
;
Secondary Prevention
4.Medulloblastoma Manifesting as Sudden Sensorineural Hearing Loss.
Yuzo TERAKAWA ; Naohiro TSUYUGUCHI ; Toshihiro TAKAMI ; Kenji OHATA
Journal of Korean Neurosurgical Society 2011;50(1):51-53
We present a rare case of medulloblastoma which presented with unilateral sudden sensorineural hearing loss as an initial symptom. A 19-year-old man was admitted to our hospital with a chief complaint of dizziness and facial numbness on the right side. His illness had begun two years previously with sudden hearing loss on the right side, for which he had been treated as an idiopathic sudden hearing loss. Magnetic resonance imaging demonstrated abnormal signals located mainly in the right middle cerebellar peduncle. We performed partial resection of the tumor by suboccipital craniotomy. The histopathological diagnosis was medulloblastoma. Intrinsic brain tumor is an extremely rare cause of sudden sensorineural hearing loss and is therefore easily overlooked as was in the present case. The present case highlights not only the need to evaluate patients with sudden sensorineural hearing loss by magnetic resonance imaging but also the importance of paying attention to intrinsic lesions involving the brainstem. Although this condition like the presented case might be rare, intrinsic brain tumor should be considered as a potential cause of sudden sensorineural hearing loss, as it may be easily missed leading to a delay in appropriate treatment.
Brain Neoplasms
;
Brain Stem
;
Craniotomy
;
Dizziness
;
Hearing Loss, Sensorineural
;
Hearing Loss, Sudden
;
Humans
;
Hypesthesia
;
Magnetic Resonance Imaging
;
Medulloblastoma
;
Young Adult
5.Regulation of Cartilage Development and Diseases by Transcription Factors.
Riko NISHIMURA ; Kenji HATA ; Yoshifumi TAKAHATA ; Tomohiko MURAKAMI ; Eriko NAKAMURA ; Hiroko YAGI
Journal of Bone Metabolism 2017;24(3):147-153
Genetic studies and molecular cloning approaches have been successfully used to identify several transcription factors that regulate the numerous stages of cartilage development. Sex-determining region Y (SRY)-box 9 (Sox9) is an essential transcription factor for the initial stage of cartilage development. Sox5 and Sox6 play an important role in the chondrogenic action of Sox9, presumably by defining its cartilage specificity. Several transcription factors have been identified as transcriptional partners for Sox9 during cartilage development. Runt-related transcription factor 2 (Runx2) and Runx3 are necessary for hypertrophy of chondrocytes. CCAAT/enhancer-binding protein β (C/EBPβ) and activating transcription factor 4 (ATF4) function as co-activators for Runx2 during hypertrophy of chondrocytes. In addition, myocyte-enhancer factor 2C (Mef2C) is required for initiation of chondrocyte hypertrophy, presumably by functioning upstream of Runx2. Importantly, the pathogenic roles of several transcription factors in osteoarthritis have been demonstrated based on the similarity of pathological phenomena seen in osteoarthritis with chondrocyte hypertrophy. We discuss the importance of investigating cellular and molecular properties of articular chondrocytes and degradation mechanisms in osteoarthritis, one of the most common cartilage diseases.
Activating Transcription Factor 4
;
Cartilage Diseases
;
Cartilage*
;
Chondrocytes
;
Cloning, Molecular
;
Hypertrophy
;
Osteoarthritis
;
Sensitivity and Specificity
;
Transcription Factors*
6.Transcriptional Network Controlling Endochondral Ossification.
Kenji HATA ; Yoshifumi TAKAHATA ; Tomohiko MURAKAMI ; Riko NISHIMURA
Journal of Bone Metabolism 2017;24(2):75-82
Endochondral ossification is the fundamental process of skeletal development in vertebrates. Chondrocytes undergo sequential steps of differentiation, including mesenchymal condensation, proliferation, hypertrophy, and mineralization. These steps, which are required for the morphological and functional changes in differentiating chondrocytes, are strictly regulated by a complex transcriptional network. Biochemical and mice genetic studies identified chondrogenic transcription factors critical for endochondral ossification. The transcription factor sex-determining region Y (SRY)-box 9 (Sox9) is essential for early chondrogenesis, and impaired Sox9 function causes severe chondrodysplasia in humans and mice. In addition, recent genome-wide chromatin immunoprecipitation-sequencing studies revealed the precise regulatory mechanism of Sox9 during early chondrogenesis. Runt-related transcription factor 2 promotes chondrocyte hypertrophy and terminal differentiation. Interestingly, endoplasmic reticulum (ER) stress-related transcription factors have recently emerged as novel regulators of chondrocyte differentiation. Here we review the transcriptional mechanisms that regulate endochondral ossification, with a focus on Sox9.
Animals
;
Chondrocytes
;
Chondrogenesis
;
Chromatin
;
Endoplasmic Reticulum
;
Gene Regulatory Networks*
;
Humans
;
Hypertrophy
;
Mice
;
Miners
;
Osteogenesis
;
SOX9 Transcription Factor
;
Transcription Factors
;
Vertebrates
7.Unilateral Failure in Microvascular Bilateral Breast Reconstruction Salvaged by Flap Transfer to the Contralateral Breast.
Toshihiro SAITO ; Koichi TOMITA ; Daisuke MAEDA ; Ko HOSOKAWA ; Kenji YANO
Archives of Plastic Surgery 2017;44(2):173-174
No abstract available.
Breast*
;
Female
;
Mammaplasty*
8.A novel brief questionnaire using a face rating scale to assess dental anxiety and fear
Takuya MINO ; Aya KIMURA-ONO ; Hikaru ARAKAWA ; Kana TOKUMOTO ; Yoko KUROSAKI ; Yoshizo MATSUKA ; Kenji MAEKAWA ; Takuo KUBOKI
The Journal of Advanced Prosthodontics 2024;16(4):244-254
PURPOSE:
This study aimed to evaluate the reliability and validity of a four-item questionnaire using a face rating scale to measure dental trait anxiety (DTA), dental trait fear (DTF), dental state anxiety (DSA), and dental state fear (DSF).
MATERIALS AND METHODS:
Participants were consecutively selected from patients undergoing scaling (S-group; n = 47) and implant placement (I-group; n = 25). The S-group completed the questionnaire both before initial and second scaling, whereas the I-group responded on the pre-surgery day (Pre-day), the day of implant placement (Imp-day), and the day of suture removal (Post-day).
RESULTS:
The reliability in the S-group was evaluated using the test-retest method, showing a weighted kappa value of DTA, 0.61; DTF, 0.46; DSA, 0.67; DSF, 0.52. Criterion-related validity, assessed using the State-Trait Anxiety Inventory’s trait anxiety and state anxiety, revealed positive correlations between trait anxiety and DTA/DTF (DTA, ρ = 0.30; DTF, ρ = 0.27, ρ: correlation coefficient) and between state anxiety and all four items (DTA, ρ = 0.41; DTF, ρ = 0.32; DSA, ρ = 0.25; DSF, ρ = 0.25). Known-group validity was assessed using the initial data and Imp-day data from the S-group and I-group, respectively, revealing significantly higher DSA and DSF scores in the I-group than in the S-group. Responsiveness was gauged using I-group data, showing significantly lower DSA and DSF scores on post-day compared to other days.
CONCLUSION
The newly developed questionnaire has acceptable reliability and validity for clinical use, suggesting its usefulness for research on dental anxiety and fear and for providing patient-specific dental care.
9.A novel brief questionnaire using a face rating scale to assess dental anxiety and fear
Takuya MINO ; Aya KIMURA-ONO ; Hikaru ARAKAWA ; Kana TOKUMOTO ; Yoko KUROSAKI ; Yoshizo MATSUKA ; Kenji MAEKAWA ; Takuo KUBOKI
The Journal of Advanced Prosthodontics 2024;16(4):244-254
PURPOSE:
This study aimed to evaluate the reliability and validity of a four-item questionnaire using a face rating scale to measure dental trait anxiety (DTA), dental trait fear (DTF), dental state anxiety (DSA), and dental state fear (DSF).
MATERIALS AND METHODS:
Participants were consecutively selected from patients undergoing scaling (S-group; n = 47) and implant placement (I-group; n = 25). The S-group completed the questionnaire both before initial and second scaling, whereas the I-group responded on the pre-surgery day (Pre-day), the day of implant placement (Imp-day), and the day of suture removal (Post-day).
RESULTS:
The reliability in the S-group was evaluated using the test-retest method, showing a weighted kappa value of DTA, 0.61; DTF, 0.46; DSA, 0.67; DSF, 0.52. Criterion-related validity, assessed using the State-Trait Anxiety Inventory’s trait anxiety and state anxiety, revealed positive correlations between trait anxiety and DTA/DTF (DTA, ρ = 0.30; DTF, ρ = 0.27, ρ: correlation coefficient) and between state anxiety and all four items (DTA, ρ = 0.41; DTF, ρ = 0.32; DSA, ρ = 0.25; DSF, ρ = 0.25). Known-group validity was assessed using the initial data and Imp-day data from the S-group and I-group, respectively, revealing significantly higher DSA and DSF scores in the I-group than in the S-group. Responsiveness was gauged using I-group data, showing significantly lower DSA and DSF scores on post-day compared to other days.
CONCLUSION
The newly developed questionnaire has acceptable reliability and validity for clinical use, suggesting its usefulness for research on dental anxiety and fear and for providing patient-specific dental care.
10.A novel brief questionnaire using a face rating scale to assess dental anxiety and fear
Takuya MINO ; Aya KIMURA-ONO ; Hikaru ARAKAWA ; Kana TOKUMOTO ; Yoko KUROSAKI ; Yoshizo MATSUKA ; Kenji MAEKAWA ; Takuo KUBOKI
The Journal of Advanced Prosthodontics 2024;16(4):244-254
PURPOSE:
This study aimed to evaluate the reliability and validity of a four-item questionnaire using a face rating scale to measure dental trait anxiety (DTA), dental trait fear (DTF), dental state anxiety (DSA), and dental state fear (DSF).
MATERIALS AND METHODS:
Participants were consecutively selected from patients undergoing scaling (S-group; n = 47) and implant placement (I-group; n = 25). The S-group completed the questionnaire both before initial and second scaling, whereas the I-group responded on the pre-surgery day (Pre-day), the day of implant placement (Imp-day), and the day of suture removal (Post-day).
RESULTS:
The reliability in the S-group was evaluated using the test-retest method, showing a weighted kappa value of DTA, 0.61; DTF, 0.46; DSA, 0.67; DSF, 0.52. Criterion-related validity, assessed using the State-Trait Anxiety Inventory’s trait anxiety and state anxiety, revealed positive correlations between trait anxiety and DTA/DTF (DTA, ρ = 0.30; DTF, ρ = 0.27, ρ: correlation coefficient) and between state anxiety and all four items (DTA, ρ = 0.41; DTF, ρ = 0.32; DSA, ρ = 0.25; DSF, ρ = 0.25). Known-group validity was assessed using the initial data and Imp-day data from the S-group and I-group, respectively, revealing significantly higher DSA and DSF scores in the I-group than in the S-group. Responsiveness was gauged using I-group data, showing significantly lower DSA and DSF scores on post-day compared to other days.
CONCLUSION
The newly developed questionnaire has acceptable reliability and validity for clinical use, suggesting its usefulness for research on dental anxiety and fear and for providing patient-specific dental care.