1.Diagnosis of Unstable Angina Patients with Significant Coronary Artery Stenosis by History-Taking and Electrocardiography.
Masahiko SODA ; Yasutaka SHIBATA ; Keiji FUNAHASHI ; Yumiko NODA ; Yumika NISHIO ; Takeo GOTO ; Katsumi TANAKA ; Fumio SAITO
Journal of the Japanese Association of Rural Medicine 1997;46(2):148-153
This study investigated whether significant coronary artery stenosis in 231 consecutive unstable angina patients can be diagnosed by thoroughgoing history-taking initial electorocardiography and symptom- or sign-limited treadmill exercise ECG after medication. The unstable angina patients were divided into those with accelerated angina, those with new-onset effort angina and those with angina at rest based on the findings of detailed inquiry. Initial ECG showed that the sensitivity and specificity of detecting significant coronary artery stenosis in all patients were 55.2% and 63.2%, respectively. In accelerated angina, sensitivity and specificity were 52.2% and 50.0%, respectively. In new-onset effort angina, sensitivity and specificity were 46.7% and 57.1%, respectively. In angina at rest, sensitivity and specificity were 69.0% and 68.3%, respectively. Initial ECG provided valuable diagnostic information about angina at rest. Treadmill exercise ECG offered 66.0% sensitivity and 89.2% specificity in all patients, respectively. In accelerated angina, sensitivity and specificity were 80.0% and 66.7%, respectively. In new-onset effort angina, sensitivity and specificity were 70.8% and 87.8%, respectively. In angina at rest, sensitivity and specificity were 48.3% and 91.4%, respectively. Thus, treadmill exercise electrocardiograms provided valuable diagnostic information in the case of unstable angina, especially accelerated angina and new-onset effort angina. For patients with angina at rest, this testing was very useful for excluding significant coronary artery stenosis.
In conclusion, detailed inquiry, initial ECG and symptom- or sign-limited treadmill exercise ECG after medical stabilization proved to be of great value for diagnosing unstable angina patients with significant coronary artery stenosis.
2.Factors Associated with Knowledge of the Common Cold and Desire for Medical Treatment: A Cross-sectional Study of Citizens Undergoing Health Checkups
Naoto SAKAMOTO ; Fumio SHAKU ; Madoka TSUTSUMI ; Junji HARUTA ; Ryohei GOTO ; Tetsuhiro MAENO
An Official Journal of the Japan Primary Care Association 2019;42(1):2-8
Introduction: We investigated the relationship between knowledge of the common cold and desire for medical treatment.Methods: We administered an anonymous self-questionnaire about the common cold to citizens receiving health checkups in City X, Ibaraki Prefecture, between August and September 2012. We assessed citizens' knowledge about the common cold and whether they sought medical treatment for it, in addition to their demographic attributes.Results: We included 1079 citizens (response rate, 74.5%) in the analysis. The majority of participants believed that receiving intravenous (IV) infusions or injections for the common cold led to faster recovery times (75.9%). Roughly half of the participants (42.0%) did not believe that antibiotics are not effective against virus-based colds, while 28.6% were unsure. Finally, endorsement of the questionnaire items "taking cold medications early leads to faster recovery" (OR: 1.61) and "IV infusions or injections lead to faster recovery times" (OR: 1.86) were associated with a desire for medical treatment.Conclusion: Our results indicate that patients' knowledge about the common cold and their understanding of treatment options available at medical institutions were inadequate. Furthermore, we found that an awareness of how cold medicines, IV infusions, or injections may shorten treatment duration was associated with a desire for treatment.
3.Influence of Signal Intensity Non-Uniformity on Brain Volumetry Using an Atlas-Based Method.
Masami GOTO ; Osamu ABE ; Tosiaki MIYATI ; Hiroyuki KABASAWA ; Hidemasa TAKAO ; Naoto HAYASHI ; Tomomi KUROSU ; Takeshi IWATSUBO ; Fumio YAMASHITA ; Hiroshi MATSUDA ; Harushi MORI ; Akira KUNIMATSU ; Shigeki AOKI ; Kenji INO ; Keiichi YANO ; Kuni OHTOMO
Korean Journal of Radiology 2012;13(4):391-402
OBJECTIVE: Many studies have reported pre-processing effects for brain volumetry; however, no study has investigated whether non-parametric non-uniform intensity normalization (N3) correction processing results in reduced system dependency when using an atlas-based method. To address this shortcoming, the present study assessed whether N3 correction processing provides reduced system dependency in atlas-based volumetry. MATERIALS AND METHODS: Contiguous sagittal T1-weighted images of the brain were obtained from 21 healthy participants, by using five magnetic resonance protocols. After image preprocessing using the Statistical Parametric Mapping 5 software, we measured the structural volume of the segmented images with the WFU-PickAtlas software. We applied six different bias-correction levels (Regularization 10, Regularization 0.0001, Regularization 0, Regularization 10 with N3, Regularization 0.0001 with N3, and Regularization 0 with N3) to each set of images. The structural volume change ratio (%) was defined as the change ratio (%) = (100 x [measured volume - mean volume of five magnetic resonance protocols] / mean volume of five magnetic resonance protocols) for each bias-correction level. RESULTS: A low change ratio was synonymous with lower system dependency. The results showed that the images with the N3 correction had a lower change ratio compared with those without the N3 correction. CONCLUSION: The present study is the first atlas-based volumetry study to show that the precision of atlas-based volumetry improves when using N3-corrected images. Therefore, correction for signal intensity non-uniformity is strongly advised for multi-scanner or multi-site imaging trials.
Adult
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Atlases as Topic
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Brain Mapping/*methods
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Female
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Humans
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Image Enhancement/methods
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Image Processing, Computer-Assisted/*methods
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Magnetic Resonance Imaging/*methods
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Male
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Middle Aged
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Software
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Statistics, Nonparametric
4.A Case of Superior Mesenteric Vein Thrombosis That Was Difficult to Diagnose and Caused Acute Deterioration
Yasuhiro IIZUKA ; Keita FUKUDA ; Yuta SUGIYAMA ; Taro SHIMIZU ; Minami ENDOH ; Masako UEDA ; Fumio GOTO ; Takahiro KAWAMURA
Journal of the Japanese Association of Rural Medicine 2018;67(2):159-
A 68-year-old man presented with abdominal pain, vomiting, and diarrhea. He was admitted with a provisional diagnosis of acute gastroenteritis based on physical examination, blood tests, ultrasonography, and plain computed tomography. Despite treatment with fasting and fluid replacement, cardiopulmonary arrest occurred the following morning. All attempts at resuscitation failed and the patient died. Pathological autopsy revealed the presence of clots within the superior mesenteric vein, which was diagnosed as superior mesenteric vein thrombosis. This rare disease often manifests with only nonspecific symptoms and is typically difficult to diagnose. Because delayed diagnosis may lead to unfavorable outcomes, it is important to include this disease in the differential diagnosis of abdominal pain.
5.Two Cases of Radiation Dermatitis Treated with Shiunko
Fumio AYUKAWA ; Ayae KANEMOTO ; Yasuo MATSUMOTO ; Tadashi SUGITA ; Kanako GOTO ; Takao SUNAGA
Kampo Medicine 2018;69(4):374-378
Shiunko, topical herbal ointment, has been used in Japan for hemorrhoid and skin wound such as scratch, incision and burn. We report two cases of radiation dermatitis with erosion, which have a good outcome after treatment with shiunko. Case 1 was 72-year-old man with radiation dermatitis of bilateral inguinal region caused by postoperative irradiation for bilateral inguinal lymph node metastases from penile cancer. Re-epithelization was observed in erosion on the 10th day after applying shiunko. It showed earlier recovery from radiation dermatitis than the cases treated with topical external medicine of azulene and/or steroid. Case 2 was 60-year-old man with the perianal radiation dermatitis with pain caused by pelvic radiotherapy for recurrence of advanced rectal cancer after chemotherapy. Shiunko gave rapid relief from anal pain and the patients felt no pain on the day subsequent to applying shiunko. Shiunko hastens analgesic effectiveness and improvement of wound caused by radiotherapy.
6.A Mobile Thrombus in the Aortic Arch
Shinji KAWAGUCHI ; Yuta MIYANO ; Shinnosuke GOTO ; Yasuhiko TERAI ; Ryota NOMURA ; Masanao NAKAI ; Hiroshi MITSUOKA ; Fumio YAMAZAKI
Japanese Journal of Cardiovascular Surgery 2021;50(1):57-60
A 51-year-old man was referred to our hospital with pain and coldness of the upper left extremity. Contrasted computed tomography revealed a silhouette protruding into the aortic arch. Peripheral embolism in upper left extremity by tumor or thrombosis was suspected. Magnetic resonance imaging revealed a mobile mass in the aortic arch. To prevent recurrent embolization, the mass and the aortic arch to which the mass was attached were excised and partial arch replacement was performed under cardiopulmonary bypass. Histologically, the mass was a fibrin thrombus with no malignancy. The aortic wall showed only mild atherosclerosis of the intima. No thrombotic predisposition such as protein S or C deficiency or antiphospholipid antibody syndrome was observed. Anticoagulant therapy was started and the patient was discharged on postoperative day 10 without recurrent thromboembolism. Three years have passed since the operation and there is no recurrence of thromboembolism.
7.A Case Report of Partial Aortic Arch Replacement for Traumatic Aortic Arch Injury
Shinnosuke GOTO ; Masanao NAKAI ; Shinji KAWAGUCHI ; Yuta MIYANO ; Muneaki YAMADA ; Yasuhiko TERAI ; Ryota NOMURA ; Hiroshi MITSUOKA ; Fumio YAMASAKI
Japanese Journal of Cardiovascular Surgery 2021;50(1):53-56
A 79-year-old woman presented to our hospital with high energy trauma. Enhanced CT revealed injury to the aortic arch. The left carotid artery was pulled out due to extension force and a drawing out lesion formed. Cardiopulmonary bypass was established with cannulation of the right femoral artery and the right atrium, and systemic cooling was started. We opened the aortic arch with deep hypothermic circulatory arrest, and detected a 10 mm drawing out lesion at the bottom of the left carotid artery. Aortic arch was transected at the distal of the left carotid artery to exclude the drawing out lesion, and partial arch replacement was performed. The patient's postoperative course was uneventful, and she was discharged from our hospital without any complication.
8.A Case of Scimitar Syndrome in an Adult with an Atrial Septal Defect
Toru KOAKUTSU ; Masanao NAKAI ; Daisuke UCHIYAMA ; Shinji KAWAGUCHI ; Yuta MIYANO ; Muneaki YAMADA ; Yasuhiko TERAI ; Shinnosuke GOTO ; Fumio YAMAZAKI
Japanese Journal of Cardiovascular Surgery 2020;49(6):330-334
The patient was a 34-year-old woman who had been routinely monitored after receiving a childhood diagnosis of partial anomalous pulmonary venous connection, but unilaterally discontinued follow-up examinations after the age of 18. At 33 years of age, she was admitted to our hospital after a physical examination revealed an abnormal shadow on a chest X-ray. Transthoracic echocardiography detected an atrial septal defect (ASD), and contrast-enhanced computed tomography showed that the right lower pulmonary vein drained to the inferior vena cava. The patient was diagnosed with scimitar syndrome with ASD. Cardiac catheterization showed a pulmonary/systemic flow ratio (Qp/Qs) of 2.48 and a left-to-right shunt rate of 59.7%. Surgical treatment was deemed to be indicated. The right lower pulmonary vein was anastomosed to the anterolateral wall of the right atrium, and an intra-atrial baffle repair was performed from the orifice within the right atrium to the left atrium through the existing ASD using untreated fresh autologous pericardium. Two years after the operation, good blood flow was maintained within the baffle with no stenosis at the anastomotic site. This report describes a rare case of scimitar syndrome with ASD in an adult woman, and provides a review of the existing literature.
9.Successful Surgical Aortic Valve Replacement for Prosthetic Valve Endocarditis 10 Months after Transcatheter Aortic Valve Implantation
Ryota NOMURA ; Masanao NAKAI ; Shinji KAWAGUCHI ; Yuta MIYANO ; Shinnosuke GOTO ; Yasuhiko TERAI ; Muneaki YAMADA ; Hiroshi MITSUOKA ; Fumio YAMAZAKI
Japanese Journal of Cardiovascular Surgery 2020;49(5):284-287
An 87-year-old man underwent a transcatheter aortic valve implantation (TAVI) for severe aortic stenosis. Approximately 8 months later, he was readmitted to our institution because of a cerebral infarction. Viridans Streptococcus was identified from the blood culture, and transesophageal echocardiography revealed a mobile mass on the leaflet. Prosthetic valve endocarditis (PVE) was diagnosed and we initially administered intravenous antibiotic therapy for 4 weeks, after which the patient underwent surgical aortic valve replacement. Herein, we report on the surgical AVR in the patient using a pericardial valve after successful removal of the infected prosthetic valve, and discuss some issues related to this rare complication after TAVI.
10.Left Atrial Appendage Rupture due to Blunt Chest Trauma during a Motor Vehicle Accident
Ryota NOMURA ; Shinji KAWAGUCHI ; Takahiro OZAWA ; Shinnosuke GOTO ; Yasuhiko TERAI ; Muneaki YAMADA ; Yuta MIYANO ; Daisuke UCHIYAMA ; Masanao NAKAI ; Fumio YAMAZAKI
Japanese Journal of Cardiovascular Surgery 2021;50(3):165-169
Blunt traumatic rupture of the heart carries a high mortality rate. Anatomical injuries have included the atrium, appendage and ventricle but injury to the left appendage has been reported very rarely. We present the case of a 71-year-old female who was a driver in a motor collision with major front-end damage where air bags were deployed. After being intubated and receiving pericardiocentesis for cardiac tamponade at an advanced critical care and emergency medical center, the patient was taken to our hospital and emergently to the operating room for exploration. There was brisk bleeding coming from a 2 cm laceration on the left atrial appendage. The injury was repaired using 4-0 polypropylene felt pledget-supported horizontal mattress sutures on the beating heart with the assistance of cardiopulmonary bypass. The present report describes this patient and our findings from a literature review.