1.A Case Report of Coronary Malperfusion and Aortic Regurgitation Caused by Intimal Flap Associated with Localized Acute Aortic Dissection with Difficulty in Preoperative Diagnosis
Tetsuhiro URASHIMA ; Kenji SAKAKIBARA ; Hiroyuki NAKAJIMA ; Yudai HAGIHARA ; Chie NAKAMURA ; Daichi SHIKATA ; Yuuki TAKESUE ; Satoru SHIRAIWA ; Yoshihiro HONDA ; Shigeaki KAGA
Japanese Journal of Cardiovascular Surgery 2024;53(5):255-258
A woman in her 60 s presented with chest pain. The electrocardiography showed ST depressed in V3-V6, ST elevation in aVR, and negative T in I, II, aVL, and aVF. Laboratory examination revealed that creatinine kinase isoenzyme-MB and troponin I were elevated. Transthoracic echocardiography revealed moderate aortic regurgitation. Enhanced computed tomography did not show an aortic dissection. Acute coronary syndrome was suspected and cardiac catheterization was done. Aortography showed an intimal flap inside the Valsalva sinus. An emergency operation was performed. Surgical view: the intimal tear affected almost all the circumference of the aorta in the Valsalva sinus and the aortic dissection with a localized and moving intimal flap affected the coronary flow and the aortic dissection caused severe aortic regurgitation and decreased the coronary flow. An aortic root replacement was successfully performed, and the postoperative course was uneventful.
2.A multicenter comparative study of endoscopic ultrasound-guided fine-needle biopsy using a Franseen needle versus conventional endoscopic ultrasound-guided fine-needle aspiration to evaluate microsatellite instability in patients with unresectable pancreatic cancer
Tadayuki TAKAGI ; Mitsuru SUGIMOTO ; Hidemichi IMAMURA ; Yosuke TAKAHATA ; Yuki NAKAJIMA ; Rei SUZUKI ; Naoki KONNO ; Hiroyuki ASAMA ; Yuki SATO ; Hiroki IRIE ; Jun NAKAMURA ; Mika TAKASUMI ; Minami HASHIMOTO ; Tsunetaka KATO ; Ryoichiro KOBASHI ; Yuko HASHIMOTO ; Goro SHIBUKAWA ; Shigeru MARUBASHI ; Takuto HIKICHI ; Hiromasa OHIRA
Clinical Endoscopy 2023;56(1):107-113
Background/Aims:
Immune checkpoint blockade has recently been reported to be effective in treating microsatellite instability (MSI)-high tumors. Therefore, sufficient sampling of histological specimens is necessary in cases of unresectable pancreatic cancer (UR-PC). This multicenter study investigated the efficacy of endoscopic ultrasound-guided fine-needle biopsy (EUS-FNB) using a Franseen needle for MSI evaluation in patients with UR-PC.
Methods:
A total of 89 patients with UR-PC who underwent endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) or EUS-FNB using 22-G needles at three hospitals in Japan (2018–2021) were enrolled. Fifty-six of these patients (FNB 23 and FNA 33) were followed up or evaluated for MSI. Patient characteristics, UR-PC data, and procedural outcomes were compared between patients who underwent EUS-FNB and those who underwent EUS-FNA.
Results:
No significant difference in terms of sufficient tissue acquisition for histology was observed between patients who underwent EUS-FNB and those who underwent EUS-FNA. MSI evaluation was possible significantly more with tissue samples obtained using EUS-FNB than with tissue samples obtained using EUS-FNA (82.6% [19/23] vs. 45.5% [15/33], respectively; p<0.01). In the multivariate analysis, EUS-FNB was the only significant factor influencing the possibility of MSI evaluation.
Conclusions
EUS-FNB using a Franseen needle is desirable for ensuring sufficient tissue acquisition for MSI evaluation.
3.Saikokaryukotsuboreito Could be Effective Even if Shakanzoto is Ineffective for Paroxysmal Atrial Fibrillation with Strong Palpitation after Cardiac Surgery
Koji KAWAGO ; Yukiyo YOSHIDA ; Satoru SHIRAIWA ; Yoshihiro HONDA ; Kenji SAKAKIBARA ; Shigeaki KAGA ; Hiroyuki NAKAJIMA
Kampo Medicine 2021;72(1):27-33
Paroxysmal atrial fibrillation (pAf) is an arrhythmia that often occurs in the elderly. The quality of life often declines due to severe palpitations caused by pAf. We present a case of recurrent pAf that occurred on postoperative day 2 of coronary artery bypass grafting and pulmonary vein isolation for unstable angina pectoris and pAf. The patient was a 62-year-old man who complained of palpitations, which was consistent with pAf on the monitor ECG. During hospitalization, the patient was constantly wearing an ECG monitor. During pAf, the heart rate was around 120 bpm, and pAf could continue for up to and beyond 24 hours. Paroxysmal atrial fibrillation with strong palpitations was observed every day, even after starting beta-blockers and anticoagulants. After discharge, a Japanese Kampo medicine called shakanzoto was taken for a month, but there was no improvement. After that, it was changed to another Japanese Kampo medicine called saikokaryukotsuboreito, because abdominal examination revealed kyokyokuman (hypochondriac discomfort and distension (resistance)) and saiboki (brisk pulsation in the para-umbilical region). Palpitations quickly improved dramatically. It was speculated that not only palpitations but also pAf had been improved.
4.Zebrafish Vascular Development: General and Tissue-Specific Regulation
Hiroyuki NAKAJIMA ; Ayano CHIBA ; Moe FUKUMOTO ; Nanami MOROOKA ; Naoki MOCHIZUKI
Journal of Lipid and Atherosclerosis 2021;10(2):145-159
Circulation is required for the delivery of oxygen and nutrition to tissues and organs, as well as waste collection. Therefore, the heart and vessels develop first during embryogenesis.The circulatory system consists of the heart, blood vessels, and blood cells, which originate from the mesoderm. The gene expression pattern required for blood vessel development is predetermined by the hierarchical and sequential regulation of genes for the differentiation of mesodermal cells. Herein, we review how blood vessels form distinctly in different tissues or organs of zebrafish and how vessel formation is universally or tissue-specifically regulated by signal transduction pathways and blood flow. In addition, the unsolved issues of mutual contacts and interplay of circulatory organs during embryogenesis are discussed.
5.Zebrafish Vascular Development: General and Tissue-Specific Regulation
Hiroyuki NAKAJIMA ; Ayano CHIBA ; Moe FUKUMOTO ; Nanami MOROOKA ; Naoki MOCHIZUKI
Journal of Lipid and Atherosclerosis 2021;10(2):145-159
Circulation is required for the delivery of oxygen and nutrition to tissues and organs, as well as waste collection. Therefore, the heart and vessels develop first during embryogenesis.The circulatory system consists of the heart, blood vessels, and blood cells, which originate from the mesoderm. The gene expression pattern required for blood vessel development is predetermined by the hierarchical and sequential regulation of genes for the differentiation of mesodermal cells. Herein, we review how blood vessels form distinctly in different tissues or organs of zebrafish and how vessel formation is universally or tissue-specifically regulated by signal transduction pathways and blood flow. In addition, the unsolved issues of mutual contacts and interplay of circulatory organs during embryogenesis are discussed.
6.A Case of Fungal Mycotic Abdominal Aortic Aneurysm with Candida albicans Sepsis
Yoshihiro HONDA ; Yukiyo YOSHIDA ; Koji KAWAGO ; Satoru SHIRAIWA ; Kenji SAKAKIBARA ; Shigeaki KAGA ; Hiroyuki NAKAJIMA
Japanese Journal of Cardiovascular Surgery 2020;49(6):375-379
Background : Fungal mycotic aneurysm is rare ; however, special care and treatment are required for the deep fungal infection itself. Case : The patient was a 69-year-old man with a history of sepsis due to Candida albicans. He suffered from back pain and moderate fever. CT revealed saccular-form aneurysm at the infrarenal abdominal aorta. After emergent in situ bifurcated graft replacement of the infected aneurysm, antifungal treatment was attempted in reference to the antifungal drug sensitivity of C. albicans from intraoperative cultures and findings of fungal endophthalmitis in an ophthalmic examination. After an uneventful acute course, follow up CT images after 12 months postoperatively revealed pseudoaneurysm formation proximal to the site of graft anastomosis. Reoperation was planned with a trans-thoracic and transabdominal approach because of concerns about thoracoabdominal aortic infection. However, the reoperation displayed only inflammatory tissue around the graft and aortic tissue. Removal of the previous graft and reconstruction of the bilateral renal artery, and the pararenal abdominal aorta to the bilateral common iliac artery was performed. Intraoperative tissue cultures revealed no evidence of microorganisms. He returned home with oral antifungal treatment and is doing well at 8 months after the reoperation. Conclusions : Management of fungal mycotic aneurysms requires both surgical treatment and antifungal treatment. Antifungal agents should be selected based on the results of a susceptibility test and after examinations for metastatic comorbidities.
7.Successful Repair of Traumatic Tricuspid Regurgitation
Satoru SHIRAIWA ; Yoshihiro HONDA ; Kenji SAKAKIBARA ; Masatake KATSU ; Shigeaki KAGA ; Shoji SUZUKI ; Hiroyuki NAKAJIMA
Japanese Journal of Cardiovascular Surgery 2018;47(3):128-132
A 62-year-old man was referred to our hospital because of dyspnea. Electrocardiogram showed chronic atrial fibrillation and echocardiogram revealed severe tricuspid regurgitation. His history included a motorbike accident at age 17, and a heart murmur was pointed out in the following year. He developed paroxysmal atrial fibrillation when he was 45 years old. Heart failure was not controlled by medication and tricuspid valve repair was indicated. At surgery, the anterior leaflet of tricuspid valve was widely prolapsed due to chordal rupture. We performed chordal reconstruction with 4 expanded polytetrafluoroethylene (CV-5®) sutures, and ring annuloplasty. Furthermore, a small fenestration at the tricuspid annulus was noticed and was closed with a direct suture. The biatrial modified Maze procedure was performed subsequently. The patient is doing well without TR recurrence, and restored sinus rhythm is maintained. We report successful repair of traumatic tricuspid regurgitation.
8.Modulation of cutaneous reflexes in trunk muscles induced by stimulating the cutaneous nerve that innervates the foot during walking and standing in humans
Shinya Suzuki ; Genki Futatsubashi ; Hiroyuki Ohtsuka ; Satoshi Haraguchi ; Tsuyoshi Nakajima ; Shigeki Ohmori ; Syusaku Sasada ; Tomoyoshi Komiyama
Japanese Journal of Physical Fitness and Sports Medicine 2015;64(1):135-144
Although the trunk segment shows well-coordinated movements in concert with the arms and legs during bipedal walking, little is understood about the neural mechanisms controlling the trunk muscles in response to sudden tactile sensations in the foot during walking. This study examined the cutaneous reflexes (CR) to shed light on the neural mechanisms underlying the regulation of the trunk muscles during walking and standing. Eleven healthy men participated in the study. Electromyographic (EMG) activities were recorded in the trapezius (TRAP), erector spinae (ES), and rectus abdominis (RA) muscles. To elicit CR, non-noxious electrical stimulation of the sural nerve at the ipsilateral lateral malleolus was applied during treadmill walking and tonic contraction of the test muscles during standing. During walking, cutaneous nerve stimulation in the foot gave rise to facilitatory CR in all the muscles, and the amplitude of the CR was strongly modulated in a phase-dependent manner. The amplitude of the background EMG and the amplitude of the CR showed a highly significant correlation in all the muscle tested during standing. However, this was true only in the ES during walking. In the RA, the inhibitory CR during standing changed to a facilitatory one during walking. In addition, reflex ratios were significantly larger during walking than standing. These findings suggest that common neural mechanisms in limb muscles could function in the TRAP and RA, however, in the ES disparate neural mechanisms play a crucial role in modulating cutaneous reflexes during walking and standing.
9.Clinical Experience with Recombinant Thrombomodulin in Patients Undergoing Cardiovascular Surgery Complicated by Disseminated Intravascular Coagulopathy
Hiroyuki Koike ; Atsushi Iguchi ; Hiroyuki Nakajima ; Kazuhiko Uebe ; Toshihisa Asakura ; Kozo Morita ; Masaru Kanbe ; Ken Takahashi ; Masahiro Ikeda ; Hiroshi Niinami
Japanese Journal of Cardiovascular Surgery 2013;42(4):267-273
Studies have shown that postoperative disseminated intravascular coagulopathy (DIC) occurs in some patients with cardiac disease, acute aortic dissection, and ruptured abdominal aortic aneurysm. The specific pathophysiology of DIC in these settings are related to low cardiac function, shock, infection and sepsis as well as activation of coagulation cascade in the aneurysm sac or dissected aorta. A soluble form of recombinant human thrombomodulin (rhsTM) was approved in 2008 for the treatment of DIC. This report describes the safety and efficacy of rhsTM for the treatment of DIC in patients with cardiovascular disease operated in our department. Between October 2010 and March 2012, 35 patients with postoperative DIC were treated with rhsTM. Diagnosis of DIC was based on the diagnostic criteria for DIC of the Japanese Association for Acute Medicine (JAAM). During the first 6 months of the study period, after a diagnosis of DIC was made, the patients were treated with gabexate mesilate and antithrombin III, and if patients showed no improvement with conventional treatment, they received rhsTM for 6 days. During the last 10 months of the study period, patients received rhsTM soon after a diagnosis of DIC was made. Twenty seven patients survived for 28 days after rhsTM treatment, and the mortality rate was 22.9% (8/35). Patients who survived showed improvement in acute phase DIC scores, FDP levels, D-Dimer, fibrinogen and platelet counts during rhsTM treatment, but no improvement was observed in patients who died. No serious adverse events were found up to 28 days after the start of rhsTM administration. In conclusion, this study showed no adverse events of rhsTM, and further studies are needed to confirm that rhsTM administration is an effective therapeutic modality in the management of DIC after cardiovascular surgery.
10.Factor Structure of the Targeted Inventory on Problems in Schizophrenia.
Shoji TANAKA ; Takanori NAGASE ; Takefumi SUZUKI ; Kensuke NOMURA ; Hiroyoshi TAKEUCHI ; Shinichiro NAKAJIMA ; Hiroyuki UCHIDA ; Gohei YAGI ; Koichiro WATANABE ; Masaru MIMURA
Clinical Psychopharmacology and Neuroscience 2013;11(1):18-23
OBJECTIVE: The aim of this study was to explore the factor structure of a novel, 10-item rating scale, the Targeted Inventory on Problems in Schizophrenia (TIP-Sz). Determining the factor structure will be useful in the brief evaluation of medication and non-medication treatment of the disease. METHODS: An exploratory factor analysis was performed on TIP-Sz scores obtained from 100 patients who met the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV) criteria for schizophrenia. RESULTS: The factor analysis extracted four factors that were deemed clinically pertinent, which we labeled: disorganization, social cooperativeness, functional capacity, and emotional state. The items exhibited cross-loadings on the first three factors (i.e., some items loaded on more than one factor). In particular, the 'behavioral dyscontrol and disorganization,' 'insight and reality testing,' and 'overall prognostic impression' items had comparable cross-loadings on all of the first three factors. The emotional state factor was distinct from the other factors in that the items loading on it did not cross-load on other factors. CONCLUSION: The TIP-Sz scale comprises factors that are associated with the psychosocial functioning and emotional state of patients, which are important outcome parameters for successful treatment of the disease.
Anomie
;
Diagnostic and Statistical Manual of Mental Disorders
;
Humans
;
Schizophrenia


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