1.Quadricuspid Aortic Valve Associated with Mitral Regurgitation and Tricuspid Regurgitation
Masato Hayakawa ; Takeshi Kinoshita ; Shiho Naito ; Noriyuki Takashima ; Satoshi Kuroyanagi ; Hiromitsu Nota ; Tomoaki Suzuki ; Tohru Asai
Japanese Journal of Cardiovascular Surgery 2013;42(3):190-192
Congenital quadricuspid aortic valve is a very rare malformation. Most cases have been discovered as an incidental finding at aortic valve surgery or at autopsy. It frequently evolves to aortic regurgitation, which can manifest in adulthood and may require surgical treatment. A 66-year-old man was admitted because of dysprea. Echocardiogram revealed aortic regurgitation, mitral regurgitation, and tricuspid regurgitation. We performed aortic valve replacement, mitral annuloplasty, and tricuspid annuloplasty successfully. The aortic valve showed one large, two intermediate and one smaller cusp, which were classified as typed by Hurwitz's classification. An accessory cusp was situated between the right and left coronary cusps. No coronary abnormality was involved. The postoperative course was uneventful and he is doing well 6 months after operation.
3.Population-Based Incidence Rates of Subarachnoid Hemorrhage in Japan: The Shiga Stroke and Heart Attack Registry
Satoshi SHITARA ; Sachiko TANAKA-MIZUNO ; Naoyuki TAKASHIMA ; Takako FUJII ; Hisatomi ARIMA ; Yoshikuni KITA ; Atsushi TSUJI ; Akihiro KITAMURA ; Makoto URUSHITANI ; Katsuyuki MIURA ; Kazuhiko NOZAKI ;
Journal of Stroke 2022;24(2):292-295
4.Long-Term Survival after Stroke in 1.4 Million Japanese Population: Shiga Stroke and Heart Attack Registry
Naoyuki TAKASHIMA ; Hisatomi ARIMA ; Yoshikuni KITA ; Takako FUJII ; Sachiko TANAKA-MIZUNO ; Satoshi SHITARA ; Akihiro KITAMURA ; Yoshihisa SUGIMOTO ; Makoto URUSHITANI ; Katsuyuki MIURA ; Kazuhiko NOZAKI
Journal of Stroke 2020;22(3):336-344
Background:
and Purpose Although numerous measures for stroke exist, stroke remains one of the leading causes of death in Japan. In this study, we aimed to determine the long-term survival rate after first-ever stroke using data from a large-scale population-based stroke registry study in Japan.
Methods:
Part of the Shiga Stroke and Heart Attack Registry, the Shiga Stroke Registry is an ongoing population-based registry study of stroke, which covers approximately 1.4 million residents of Shiga Prefecture in Japan. A total 1,880 patients with non-fatal first-ever stroke (among 29-day survivors after stroke onset) registered in 2011 were followed up until December 2016. Five-year cumulative survival rates were estimated using the Kaplan-Meier method, according to subtype of the index stroke. Cox proportional hazards models were used to assess predictors of subsequent all-cause death.
Results:
During an average 4.3-year follow-up period, 677 patients died. The 5-year cumulative survival rate after non-fatal first-ever stroke was 65.9%. Heterogeneity was present in 5-year cumulative survival according to stroke subtype: lacunar infarction, 75.1%; large-artery infarction, 61.5%; cardioembolic infarction, 44.9%; intracerebral hemorrhage, 69.1%; and subarachnoid hemorrhage, 77.9%. Age, male sex, Japan Coma Scale score on admission, and modified Rankin Scale score before stroke onset were associated with increased mortality during the chronic phase of ischemic and hemorrhagic stroke.
Conclusions
In this study conducted in a real-world setting of Japan, the 5-year survival rate after non-fatal first-ever stroke remained low, particularly among patients with cardioembolic infarction and large-artery infarction in the present population-based stroke registry.
5.Phenotypic diversity of hereditary sensory and autonomic neuropathy type IE: a case series and review of the literature
Noriyuki Miyaue ; Yuki Yamanishi ; Satoshi Tada ; Rina Ando ; Hayato Yabe ; Noriko Nishikawa ; Masahiro Nagai ; Hiroshi Takashima ; Masahiro Nomoto
Neurology Asia 2019;24(1):15-20
Objective: DNA methyltransferase 1 (DNMT1) is crucial to maintaining methylation during DNA
replication and DNA repair. DNMT1 mutations have been identified in two neurological syndromes,
including hereditary sensory and autonomic neuropathy type IE (HSAN IE) with dementia and
hearing loss and autosomal dominant cerebellar ataxia, deafness and narcolepsy. It is likely that
DNMT1 mutations lead to various symptoms of the central and peripheral nervous system. The aim
of this study was to examine the clinical characteristics, especially the initial symptoms, in the cases
of DNMT1 mutations. Methods: We investigated the clinical manifestation and examination findings
of four cases of HSAN IE from one family with the DNMT1 mutation c.1531Y>C (p.Try511His).
Results: All four cases exhibited sensory neuropathy, cerebellar ataxia, and hearing loss, all of which
were demonstrated by the audiograms. The initial symptoms of the four cases included hearing loss
(n=1), gait disturbance (n=1), and depressive mood (n=2). Depressive symptoms are reported in some
cases with HSAN IE, however, there are currently no published reports that describe them as primary
symptoms. The CSF orexin level was measured in three cases, revealing normal values in two cases
and intermediate values in one case, in which the patient exhibited rapid eye movement (REM) sleep
behavior disorder.
Conclusion: Our findings suggest that in cases with HSAN IE or the DNMT1 mutation, psychiatric
symptoms should be taken into account as one of the initial manifestations of the disease.