The case patient was a 61-year-old man who fell while working on the back of a truck and bruised his abdomen. Immediately thereafter, the patient started experiencing lumbar pain and weakness in both lower limbs. He was then transported to our hospital by ambulance. Based on the abdominal CT findings, he was diagnosed with acute lower limb ischemia due to a ruptured abdominal aortic aneurysm. The patient underwent graft replacement surgery within 3.5 hours after the onset of the rupture. The patient had no adverse findings, such as ischemia-reperfusion injury and compartment syndrome, after resumption of blood flow (6.5 hours after the onset) and both lower limbs were well perfused. Although there was mild muscle weakness and numbness in the distal left lower limb, the patient was discharged 9 days after surgery.

No abstract available.
Adolescent ; Adult ; Age Factors ; Aged ; Aged, 80 and over ; Amino Acid Sequence ; Calreticulin/*genetics ; Child ; DNA/chemistry/genetics/metabolism ; Exons ; Female ; Humans ; Janus Kinase 2/*genetics ; Male ; Middle Aged ; Molecular Sequence Data ; Polymorphism, Single Nucleotide ; Receptors, Thrombopoietin/genetics ; Sequence Analysis, DNA ; Sex Factors ; Thrombocythemia, Essential/*diagnosis/genetics ; Young Adult

A 72-year-old woman underwent thoracic endovascular aortic repair (TEVAR) for an aortic arch aneurysm at a previous hospital. During follow-up, although the aneurysm was found to have become bigger, no further treatments were given, except for conservative follow-up. The patient sought a second opinion and thus visited our hospital. Enhanced computed tomography (CT) revealed a type I endoleak that required repair. Total arch replacement with removal of the partial stent-graft system was performed under deep hypothermic circulatory arrest. The patient made a steady progress postoperatively and was discharged without any complications. Endovascular repair is minimally invasive and frequently used in various medical facilities but carries a considerably high risk of reintervention. Treatment strategies for aortic aneurysm, including open surgery, should be carefully chosen.

Introduction: Conference presentations are a very instructive experience for doctors.Aim: The aim of this study was to evaluate residents' attitude toward conference presentations.Methods: A questionnaire-based survey was conducted on 22 residents at our hospital, regarding their experience with giving a conference presentation.Results: Of the 22 residents, 15 (68%) completed the questionnaires. 13 (87%) of them had experienced giving a presentation for the first time. Overall, 14 (93%) of the 15 residents thought the experience of giving a conference presentation was very instructive. 12 residents (80%) wanted to experience it again. On the other hand, a few residents requested that giving a presentation be made voluntary and not mandatory.Conclusion: The results of our study demonstrates that giving conference presentations would be a very valuable experience for young doctors. The experience of giving a presentation coupled with prior explanations about its instructive value could positively impact intrinsic motivation.

BACKGROUND: Molar incisor hypomineralization (MIH) frequently occurs in children worldwide. However, MIH prevalence throughout Japan has not yet been investigated. The purpose of this study was to clarify MIH prevalence rates and to consider potential regional differences throughout Japan. METHODS: A total of 4496 children aged 7-9 years throughout Japan were evaluated in this study. MIH prevalence rates among children were evaluated in eight regions throughout Japan. A child's residence was defined as the mother's residence during pregnancy. The localization of demarcated opacities and enamel breakdown was recorded on a standard code form using a guided record chart. Logistic regression analysis was used to evaluate whether MIH prevalence rates differed among age groups, sex, and regions. RESULTS: The overall prevalence of MIH in Japan was 19.8%. The prevalence of MIH was 14.0% in the Hokkaido region, 11.7% in the Tohoku region, 18.5% in the Kanto Shin-Etsu region, 19.3% in the Tokai Hokuriku region, 22.3% in the Kinki region, 19.8% in the Chugoku region, 28.1% in the Shikoku region, and 25.3% in the Kyushu region. These regional differences were statistically significant. Moreover, MIH prevalence rates decreased with age. No significant sex differences in MIH prevalence rates were demonstrated. CONCLUSIONS To our knowledge, this is the first MIH study carried out in several regions throughout Japan. Regional differences existed in MIH prevalence rates; particularly, MIH occurred more frequently in children residing in southwestern areas than those in northeastern areas of Japan.
Child ; Dental Enamel Hypoplasia ; epidemiology ; etiology ; Female ; Humans ; Japan ; epidemiology ; Male ; Prevalence