1.A Successful Aortic Valve-Sparing Root Replacement Operation (Reimplantation) to Repair Root Dilatation and Aortic Valve Regurgitation after a Ross Procedure
Hideyuki KATAYAMA ; Hiroshi TSUNEYOSHI ; Syuji SETOZAKI ; Takuki WADA ; Syuntaro SHIMOMURA ; Tsugumitsu KANDO ; Takanobu KIMURA ; Akira TAKEUCHI ; Akio IKAI ; Kenji MINATOYA
Japanese Journal of Cardiovascular Surgery 2024;53(1):1-5
We report a successful case of aortic valve-sparing root replacement for dilated aortic root after a Ross procedure. A 29-year-old male underwent a Ross procedure when he was 11 years old for congenital aortic bicuspid valve. The right ventricular outflow tract was reconstructed using an autologous pericardium as a single leaflet valve. Aortic root dilatation and moderate aortic valve regurgitation were noted. Further investigation with enhanced computed tomography and ultrasonic cardiography revealed good quality of leaflets and sufficient geometric height, and aortic valve-sparing root replacement was performed. In addition, we performed pulmonary valve replacement with a biological valve. The post-operative course was uneventful and the patient was discharged after 8 days with a completely controlled aortic valve regurgitation. No recurrence of aortic valve regurgitation was observed 1 year later. Because surgical outcomes of congenital heart diseases have improved and more patients have an increasing life expectancy, several other problems were revealed, such as the occurrence of aortic root dilatation after a Ross procedure. Aortic roots may dilate due to arterial pressure; however, valve-sparing procedures may be performed if the volume of the leaflets is sufficient.
2.Efficacy of Asenapine in Drug-resistant Psychotic Patients with Dopamine Supersensitivity Psychosis: Two Cases
Nobuhisa KANAHARA ; Hiroshi KIMURA ; Toshihiko KINOSHITA ; Masaomi IYO ; Yoshiteru TAKEKITA
Clinical Psychopharmacology and Neuroscience 2023;21(1):197-201
Dopamine supersensitivity psychosis (DSP) is an unstable clinical condition observed in individuals with schizophrenia who have been treated with an antipsychotic medication at a high dosage and/or for a long period. An up-regulation of dopamine D2 receptors (DRD2) is thought to be involved in the essential pathology of DSP. An antipsychotic agent with both tight binding to DRD2 and a long half-life is generally effective for treating DSP, but a patient who meets the criteria of treatment-resistant schizophrenia sometimes needs treatment with clozapine. We report the case details of two patients whose DSP was not controlled with several antipsychotics but was successfully controlled with asenapine.Asenapine binds to a broad range of dopamine receptors and serotonin receptors, and it is thus distinct from other atypical antipsychotics. The unique profile of asenapine may contribute to the control of severe DSP symptoms in individuals with schizophrenia.
3.Narrative Review of Feedback -From Definition to Recent Discussion-
Takeshi KIMURA ; Hiroshi NISHIGORI
Medical Education 2023;54(3):255-265
Feedback is an educational activity that occurs in a variety of settings in medical education and has been widely discussed since 2008, when Ridder et al. defined it as "Specific information about the comparison between a trainee's observed performance and a standard, given with the intent to improve the trainee's performance." (Ridder et al., 2008, p.3). Since then, discussions on effective feedback have shifted from a behaviorist, instructor-centered approach to a more multifaceted approach that focuses on relationship and the learner as recipient of feedback, or the learner's potential ability to make use of feedback (self-regulated learning, feedback literacy).
4.Right Ventriculostomy for Resection of Cardiac Metastasis from Cervical Cancer
Tsugumitsu KANDO ; Hiroshi TSUNEYOSHI ; Shuji SETOZAKI ; Hideyuki KATAYAMA ; Takehide AKIMOTO ; Takanobu KIMURA ; Shuntaro SHIMOMURA ; Takuki WADA ; Akira TAKEUCHI ; Takeru NAKAMURA
Japanese Journal of Cardiovascular Surgery 2023;52(6):412-416
Cardiac metastasis from cervical cancer is rare. We herein present a case involving a 54-year-old woman with cervical cancer who was undergoing radiotherapy for left supraclavicular lymph node metastasis. The patient was admitted to the hospital because of shortness of breath. Transthoracic echocardiography showed a large mass in the right ventricle. To rescue the patient from circulatory collapse, we surgically resected the intracardiac mass via a right ventricular incision parallel to the posterior descending artery and left anterior descending artery. This approach prevented right ventricular outflow tract obstruction and perioperative pulmonary embolization, which could have led to death. The intracardiac mass was diagnosed as squamous cell carcinoma. After hospital discharge, the patient underwent chemotherapy. An echocardiography performed 3 months postoperatively showed recurrence of the cardiac metastasis, and the patient died 5 months later. Cardiac metastasis in the right ventricle can present as pulmonary embolization. Although rare, most cases of metastasis from cervical carcinoma to the heart have an extremely poor prognosis.
5.Mode of Imaging Study and Endovascular Therapy for a Large Ischemic Core: Insights From the RESCUE-Japan LIMIT
Fumihiro SAKAKIBARA ; Kazutaka UCHIDA ; Shinichi YOSHIMURA ; Nobuyuki SAKAI ; Hiroshi YAMAGAMI ; Kazunori TOYODA ; Yuji MATSUMARU ; Yasushi MATSUMOTO ; Kazumi KIMURA ; Reiichi ISHIKURA ; Manabu INOUE ; Kumiko ANDO ; Atsushi YOSHIDA ; Kanta TANAKA ; Takeshi YOSHIMOTO ; Junpei KOGE ; Mikiya BEPPU ; Manabu SHIRAKAWA ; Takeshi MORIMOTO ;
Journal of Stroke 2023;25(3):388-398
Background:
and Purpose Differences in measurement of the extent of acute ischemic stroke using the Alberta Stroke Program Early Computed Tomographic Score (ASPECTS) by non-contrast computed tomography (CT-ASPECTS stratum) and diffusion-weighted imaging (DWI-ASPECTS stratum) may impact the efficacy of endovascular therapy (EVT) in patients with a large ischemic core.
Methods:
The RESCUE-Japan LIMIT (Recovery by Endovascular Salvage for Cerebral Ultra-acute Embolism Japan–Large IscheMIc core Trial) was a multicenter, open-label, randomized clinical trial that evaluated the efficacy and safety of EVT in patients with ASPECTS of 3–5. CT-ASPECTS was prioritized when both CT-ASPECTS and DWI-ASPECTS were measured. The effects of EVT on the modified Rankin Scale (mRS) score at 90 days were assessed separately for each stratum.
Results:
Among 183 patients, 112 (EVT group, 53; No-EVT group, 59) were in the CT-ASPECTS stratum and 71 (EVT group, 40; No-EVT group, 31) in the DWI-ASPECTS stratum. The common odds ratio (OR) (95% confidence interval) of the EVT group for one scale shift of the mRS score toward 0 was 1.29 (0.65–2.54) compared to the No-EVT group in CT-ASPECTS stratum, and 6.15 (2.46–16.3) in DWI-ASPECTS stratum with significant interaction between treatment assignment and mode of imaging study (P=0.002). There were significant interactions in the improvement of the National Institutes of Health Stroke Scale score at 48 hours (CT-ASPECTS stratum: OR, 1.95; DWIASPECTS stratum: OR, 14.5; interaction P=0.035) and mortality at 90 days (CT-ASPECTS stratum: OR, 2.07; DWI-ASPECTS stratum: OR, 0.23; interaction P=0.008).
Conclusion
Patients with ASPECTS of 3–5 on MRI benefitted more from EVT than those with ASPECTS of 3–5 on CT.
6.Unprofessional Behavior
Takeshi KIMURA ; Hiroshi NISHIGORI
Medical Education 2022;53(2):163-169
Teaching professionalism is one of the most important themes in medical education, but difficulties remain regarding teaching and assessment. From the perspective of professionalism assessment discussions have focused on observable “behaviors” and redefining them as unprofessional behaviors has been growing since around 2000, especially in North America. This paper summarizes the concepts related to classification, assessment, and remediation of unprofessional behavior, including Japanese trends. It also aims to enlighten the public on concepts related to unprofessional behavior and to promote research that is relevant to the Japanese context. Through appropriate management of unprofessional behavior, we hope to foster medical students and doctors who can better withstand the demands of society.
7.Human Leukocyte Antigens and Biomarkers in Type 1 Diabetes Mellitus Induced by Immune-Checkpoint Inhibitors
Hidefumi INABA ; Yosuke KAIDO ; Saya ITO ; Tomonao HIROBATA ; Gen INOUE ; Takakazu SUGITA ; Yuki YAMAMOTO ; Masatoshi JINNIN ; Hiroaki KIMURA ; Tomoko KOBAYASHI ; Shintaro IWAMA ; Hiroshi ARIMA ; Takaaki MATSUOKA
Endocrinology and Metabolism 2022;37(1):84-95
Background:
Type 1 diabetes mellitus induced by immune-checkpoint inhibitors (ICI-T1DM) is a rare critical entity. However, the etiology of ICI-T1DM remains unclear.
Methods:
In order to elucidate risk factors for ICI-T1DM, we evaluated the clinical course and immunological status of patients with ICI-T1DM who had been diagnosed during 2016 to 2021.
Results:
Seven of 871 (0.8%, six men and one woman) patients developed ICI-T1DM. We revealed that the allele frequencies of human leukocyte antigen (HLA)-DPA1*02:02 and DPB1*05:01 were significantly higher in the patients with ICI-T1DM In comparison to the controls who received ICI (11/14 vs. 10/26, P=0.022; 11/14 vs. 7/26, P=0.0027, respectively). HLA-DRB1*04:05, which has been found to be a T1DM susceptibility allele in Asians, was also observed as a high-risk allele for ICI-T1DM. The significance of the HLA-DPB1*05:01 and DRB1*04:05 alleles was confirmed by an analysis of four additional patients. The absolute/relative neutrophil count, neutrophils-lymphocyte ratio, and neutrophil-eosinophil ratio increased, and the absolute lymphocyte count and absolute/relative eosinophil count decreased at the onset as compared with 6 weeks before. In two patients, alterations in cytokines and chemokines were found at the onset.
Conclusion
Novel high-risk HLA alleles and haplotypes were identified in ICI-T1DM, and peripheral blood factors may be utilized as biomarkers.
8.A Case of Non-Bacterial Thrombotic Endocarditis with Atypical Massive Vegitation
Takanobu KIMURA ; Takuki WADA ; Shuji SETOZAKI ; Hideyuki KATAYAMA ; Shuntaro SHIMOMURA ; Hiroshi TSUNEYOSHI
Japanese Journal of Cardiovascular Surgery 2022;51(4):231-234
The patient was a 68-year-old woman. She was diagnosed with uterine cancer after experiencing irregular genital bleeding. Contrast-enhanced computed tomography showed a 30 mm left ventricular mass and splenic infarction, and head MRI showed multiple cerebral infarctions. The patient was suffering from systemic embolism caused by the cardiac mass, and we decided to perform cardiac mass removal prior to uterine cancer treatment. A yellowish-white thrombus-like mass attached to the mitral valve, subvalvular tissue, and left ventricular endocardium was removed by a trans-septal approach under cardiopulmonary bypass. Pathological examination revealed that the mass was a fibrin-based thrombus with almost no inflammatory findings, we diagnosised non-bacterial thrombotic endocarditis (NBTE). Postoperatively, the patient developed Takotsubo cardiomyopathy, and treatment for uterine cancer, was delayed. Hypercoagulability was not controlled well, and she developed recurrence of left ventricle vegitation, acute arterial occlusion of the lower extremities and inferior vena cava thrombosis, making active intervention for uterine cancer difficult. The patient was treated palliatively and died on POD 36. NBTE tends to be characterized by multiple small growths, but giant vegetation may also occur as in this case. Unless the primary disease causing the hypercoagulability is treated, recurrence of NBTE is possible, and prompt treatment of the primary disease is required.
9.Fluorodeoxyglucose Positron-Emission Tomography/Computed Tomography and Magnetic Resonance Imaging for Adverse Local Tissue Reactions near Metal Implants after Total Hip Arthroplasty: A Preliminary Report
Makoto KIMURA ; Nobuhiro KAKU ; Yuta KUBOTA ; Hiroaki TAGOMORI ; Hiroshi TSUMURA
Clinics in Orthopedic Surgery 2021;13(3):320-328
Background:
Plain computed tomography (CT) and magnetic resonance imaging (MRI) are useful for diagnosing adverse local tissue reactions after metal-on-metal total hip arthroplasty (THA), but metal artifacts can hamper radiological assessments near the implants. We sought to clarify the usefulness of 18F-fluorodeoxyglucose positron-emission tomography (18F-FDG-PET) CT and MRI in the periprosthetic region, which is difficult to assess after THA due to metal artifacts.
Methods:
We performed preoperative 18F-FDG-PET/CT and 18F-FDG-PET/MRI, as well as plain CT and MRI, in 11 metal-on-metal THA patients who underwent revision surgery.
Results:
Most patients showed high FDG uptake in the metal artifact areas and pseudotumors in the 18-F-FDG-PET/CT and 18-FFDG-PET/MRI scans. Intraoperative intra-articular macroscopic and histopathological intra-articular granulation tissue findings were suggestive of adverse local tissue reaction.
Conclusions
The enhanced uptake in the metal artifact areas seemed to reflect adverse local tissue reaction. Therefore, 18F-FDGPET/CT and 18-F-FDG-PET/MRI can be useful for the auxiliary diagnosis of adverse local tissue reactions after metal-on-metal THA.
10.Analysis of Awareness and Perception Alteration of Simple Suspension Method by a Workshop for Hospital Pharmacists
Kana HASHIMOTO ; Yoshiko TAKAHASHI ; Hiroshi SUZUKI ; Takeshi KIMURA ; Atsushi KINOSHITA ; Tadashi SHIMIZU ; Manabu AMANO
Japanese Journal of Social Pharmacy 2021;40(1):50-58
The conventional crushing method for administration of drugs to patients with feeding tubes has been commonly used at the Hyogo College of Medicine College Hospital. Compared with this conventional method, the simple suspension method can reduce drug degradation due to light and moisture absorption as well as avoid drug loss and contamination. We conducted a workshop to introduce this method to pharmacists. We asked the participants to fill a questionnaire-based survey both before and after the workshop to determine the effects of the workshop on the change in the degree of awareness among participants about these methods. The awareness of participants about the simple suspension method was approximately 80% before the workshop. Approximately 60% of participants answered that they had questions about simple suspension method from individuals from other occupations, suggesting a high awareness of this method. After the workshop, approximately 98% of participants answered that they were “satisfied” or “slightly satisfied,” suggesting that they were in favor of introducing the suspension method. The results of text mining indicated a requirement for participants to consider incompatibilities and to educate the nursing department. Participants who actively considered the proposal of simple suspension method had an altered perception toward the introduction and utilization of this method. Therefore, this survey suggested that workshops could alter the perception and behavior of pharmacists about the methods of drug administration via feeding tube.


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