1.Neonatal Isolation Increases the Susceptibility to Learned Helplessness through the Aberrant Neuronal Activity in the Ventral Pallidum of Rats
Hironori KOBAYASHI ; Manabu FUCHIKAMI ; Kenichi OGA ; Tatsuhiro MIYAGI ; Sho FUJITA ; Satoshi FUJITA ; Satoshi OKADA ; Yasumasa OKAMOTO ; Shigeru MORINOBU
Clinical Psychopharmacology and Neuroscience 2024;22(2):354-363
Objective:
Environmental deprivation, a type of childhood maltreatment, has been reported to constrain the cognitive developmental processes such as associative learning and implicit learning, which may lead to functional and morphological changes in the ventral pallidum (VP) and pessimism, a well-known cognitive feature of major depression. We examined whether neonatal isolation (NI) could influence the incidence of learned helplessness (LH) in a rat model mimicking the pessimism, and the number of vesicular glutamate transporter 2 (VGLUT2)-expressing VP cells and Penk-expressing VP cells.
Methods:
The number of escape failures from foot-shocks in the LH test was measured to examine stress-induced depression-like behavior in rats. The number of VGLUT2-expressing VP cells and Penk-expressing VP cells was measured by immunohistochemistry.
Results:
In NI rats compared with Sham rats, the incidence of LH in adulthood was increased and VGLUT2-expressing VP cells but not Penk-expressing VP cells in adulthood were decreased. VGLUT2-expressing VP cells were decreased only in the LH group of NI rats and significantly correlated with the escape latency in the LH test.
Conclusion
These findings suggest that the aberrant VP neuronal activity due to environmental deprivation early in life leads to pessimistic associative and implicit learning. Modulating VP neuronal activity could be a novel therapeutic and preventive strategy for the patients with this specific pathophysiology.
2.Coronal Plane Gap Increases Postoperative Pseudoarthrosis after Lateral Interbody Fusion for Adult Spinal Deformity
Eijiro OKADA ; Mitsuru YAGI ; Yusuke YAMAMOTO ; Satoshi SUZUKI ; Satoshi NORI ; Osahiko TSUJI ; Narihito NAGOSHI ; Nobuyuki FUJITA ; Masaya NAKAMURA ; Morio MATSUMOTO ; Kota WATANABE
Asian Spine Journal 2022;16(3):386-393
Methods:
This study included 42 patients with ASD (two men and 40 women; 112 segments; mean, 68.5±8.4 years; and mean follow-up, 31.6±17.0 months) who underwent LIF and posterior correction surgery. The concave slot of the LIF cage was filled with an autologous iliac crest bone graft (IBG), and the convex slot with a porous hydroxyapatite/collagen (HAp/Col) composite was soaked with bone marrow aspirate. Endplate injury, the gap between vertebral endplate and cage in the coronal or sagittal plane, and fusion status were evaluated using computed tomography multiplanar reconstruction at 12 months after surgery. Moreover, the associated risk factors for pseudoarthrosis were analyzed.
Results:
Fusion at LIF segments were observed in 71.4% segments at 12 months after surgery. Fusion on the concave slot (autologous IBG side), convex slot (porous HAp/Col composite side), and both concave and convex slots were observed in 66.1%, 37.5%, and 36.6% of patients, respectively. Moreover, pseudoarthrosis was observed in 28.6% at 12 months after surgery. Consequently, logistic regression analysis of the fusion at the LIF segment revealed that the gap between the LIF cage and endplate in the coronal plane (p=0.030; odds ratio, 0.183; 95% confidence interval, 0.030–0.183) was significantly associated with pseudoarthrosis at the LIF segments.
Conclusions
ASD surgery fusion rate using LIF cages was 71.4% at 12 months after surgery. The fusion rate was higher on the concave slot filled with autologous IBG than on the convex slot filled with a porous HAp/Col composite. The gap in the coronal plane was a risk factor for pseudoarthrosis at the LIF segment.
3.Improving Community-based Health Care through Active Admission of Patients with Vertebral Compression Fracture for Recovery Phase Rehabilitation, and Statistical Analysis of the Backgrounds
Hakuo TAKAHASHI ; Hiroshi KATO ; Koji FUJITA ; Minoru SAKAIDA ; Takahiro ITO ; Satoshi AZAI
The Japanese Journal of Rehabilitation Medicine 2021;58(4):443-449
Objective:Patients with vertebral compression fracture first visit the acute care hospital for a diagnosis, but cannot be admitted and return home with a corset and analgesics. Because of severe lower back pain, they stay in bed for a significant period of time, and their skeletal muscles suffer from disuse atrophy. We aimed to actively admit these patients for recovery phase rehabilitation by setting up a hotline.Methods:The backgrounds of each case including the major laboratory findings were investigated for 1 year. Health professionals were able to use the hotline to request admission for the patients.Results:One hundred twenty-seven patients (38 males and 89 females, aged 84±7.5 years) were admitted. The percentages of phone calls from acute-care hospitals, clinics, and regional care managers were 46%, 31%, and 20%, respectively. With regard to degree of disability 36% of the patients were at C1, 31% were at B2, and 20% were at C2 indicating that they needed almost complete assistance. Fifty one percent of the patients lived alone, and 20% were couples without assistance from others. Because they were elderly patients with many complications, more than six agents had been prescribed on average. However, osteoporosis medication had been prescribed to only 23%. The prognosis was favorable with ratio of returned home being 91%, even though the outcome of rehabilitation is limited by ageing and deteriorated cardiac and renal functions in these patients.Conclusion:Services to support these patients during the recovery phase of rehabilitation is crucial, in order to improve community-based health care.
4.Effectiveness of Duloxetine for Postsurgical Chronic Neuropathic Disorders after Spine and Spinal Cord Surgery
Osahiio TSUJI ; Shizuko KOSUGI ; Satoshi SUZUKI ; Satoshi NORI ; Narihito NAGOSHI ; Eijiro OKADA ; Nobuyuki FUJITA ; Mitsuru YAGI ; Masaya NAKAMURA ; Morio MATSUMOTO ; Kota WATANABE
Asian Spine Journal 2021;15(5):650-658
Methods:
A total of 24 patients with postsurgical chronic pain and/or numbness Numeric Rating Scale (NRS) scores of ≥4 were enrolled. All patients underwent spine or spinal cord surgery at Keio University Hospital and received daily administration of DLX for more than 3 months. The mean postoperative period before the first administration of DLX was 35.5±57.0 months. DLX was administered for more than 3 months at a dose of 20, 40, or 60 mg/day, and the degree of pain and numbness was evaluated using the NRS before administration and 3 months after administration. Effectiveness was defined as more than a 2-point decrease in the NRS score following administration.
Results:
In terms of the type of symptoms, 15 patients experienced only numbness, eight experienced both pain and numbness, and one experienced only pain. Of the 24 patients, 19 achieved effective relief with DLX. DLX was effective for all patients with postsurgical chronic pain (n=9), and it reduced postsurgical chronic numbness in 18 of 23 patients. No significant difference was observed in background spinal disorders. DLX was not effective for five patients who complained only of postsurgical chronic numbness.
Conclusions
This study reports the effectiveness of DLX for postsurgical chronic neuropathic disorders. Although DLX reduced postsurgical chronic pain (efficacy rate=100%) and numbness (78.3%) in certain patients, further investigation is needed to determine its optimal use.
5.Improving Community-based Health Care through Active Admission of Patients with Vertebral Compression Fracture for Recovery Phase Rehabilitation, and Statistical Analysis of the Backgrounds
Hakuo TAKAHASHI ; Hiroshi KATO ; Koji FUJITA ; Minoru SAKAIDA ; Takahiro ITO ; Satoshi AZAI
The Japanese Journal of Rehabilitation Medicine 2020;():20019-
Objective:Patients with vertebral compression fracture first visit the acute care hospital for a diagnosis, but cannot be admitted and return home with a corset and analgesics. Because of severe lower back pain, they stay in bed for a significant period of time, and their skeletal muscles suffer from disuse atrophy. We aimed to actively admit these patients for recovery phase rehabilitation by setting up a hotline.Methods:The backgrounds of each case including the major laboratory findings were investigated for 1 year. Health professionals were able to use the hotline to request admission for the patients.Results:One hundred twenty-seven patients (38 males and 89 females, aged 84±7.5 years) were admitted. The percentages of phone calls from acute-care hospitals, clinics, and regional care managers were 46%, 31%, and 20%, respectively. With regard to degree of disability 36% of the patients were at C1, 31% were at B2, and 20% were at C2 indicating that they needed almost complete assistance. Fifty one percent of the patients lived alone, and 20% were couples without assistance from others. Because they were elderly patients with many complications, more than six agents had been prescribed on average. However, osteoporosis medication had been prescribed to only 23%. The prognosis was favorable with ratio of returned home being 91%, even though the outcome of rehabilitation is limited by ageing and deteriorated cardiac and renal functions in these patients,Conclusion:Services to support these patients during the recovery phase of rehabilitation is crucial, in order to improve community-based health care.
6.Poor Prognostic Factors for Surgical Treatment of Spinal Intramedullary Ependymoma (World Health Organization Grade II)
Osahiko TSUJI ; Narihito NAGOSHI ; Ryota ISHII ; Satoshi NORI ; Satoshi SUZUKI ; Eijiro OKADA ; Nobuyuki FUJITA ; Mitsuru YAGI ; Morio MATSUMOTO ; Masaya NAKAMURA ; Kota WATANABE
Asian Spine Journal 2020;14(6):821-828
Methods:
Eighty patients who underwent surgical resection at Keio University and Fujita Health University in Tokyo, Japan between 2003 and 2015 with more than 2 years of follow-up were enrolled. A good surgical result was defined as an improvement in the modified McCormick Scale score by one grade or more or having the same clinical grade as was observed preoperatively. Meanwhile, a poor result was defined as a reduction in the McCormick Scale score of one grade or more or remaining in grade IV or V at final follow-up. Univariate and multivariate logistic regression analyses of the following factors were performed in the two groups: sex, age, preoperative Visual Analog Scale (VAS), tumor location, the extent of tumor resection, hemosiderin caps, cavity length, and tumor length on magnetic resonance imaging.
Results:
At final follow-up, 15 patients were included in the poor results group and 65 in the good results group. In the univariate analysis, the factors related to poor results were as follows: higher age, preoperative McCormick Scale score severity, higher preoperative VAS, thoracic location, hemosiderin capped, and non-gross total resection (GTR). A multiple logistic regression analysis was conducted and showed that age, worse preoperative McCormick Scale score, and non-GTR were significant factors for poor prognosis.
Conclusions
The independent risk factors for motor deterioration after ependymoma resection were age, worse preoperative McCormick Scale score, and non-GTR. Early surgery for patients with even mild neurological disorders could facilitate functional outcomes. These results may contribute to determining the optimal timing of surgery for spinal intramedullary ependymoma.
7.Long-term stability after multidisciplinary treatment involving maxillary distraction osteogenesis, and sagittal split ramus osteotomy for unilateral cleft lip and palate with severe occlusal collapse and gingival recession: A case report.
Satoshi KOKAI ; Eiji FUKUYAMA ; Susumu OMURA ; Sachiko KIMIZUKA ; Ikuo YONEMITSU ; Koichi FUJITA ; Takashi ONO
The Korean Journal of Orthodontics 2019;49(1):59-69
In this report, we describe a case involving a 34-year-old woman who showed good treatment outcomes with long-term stability after multidisciplinary treatment for unilateral cleft lip and palate (CLP), maxillary hypoplasia, severe maxillary arch constriction, severe occlusal collapse, and gingival recession. A comprehensive treatment approach was developed with maximum consideration of strong scar constriction and gingival recession; it included minimum maxillary arch expansion, maxillary advancement by distraction osteogenesis using an internal distraction device, and mandibular setback using sagittal split ramus osteotomy. Her post-treatment records demonstrated a balanced facial profile and occlusion with improved facial symmetry. The patient's profile was dramatically improved, with reduced upper lip retrusion and lower lip protrusion as a result of the maxillary advancement and mandibular setback, respectively. Although gingival recession showed a slight increase, tooth mobility was within the normal physiological range. No tooth hyperesthesia was observed after treatment. There was negligible osseous relapse, and the occlusion remained stable after 5 years of post-treatment retention. Our findings suggest that such multidisciplinary approaches for the treatment of CLP with gingival recession and occlusal collapse help in improving occlusion and facial esthetics without the need for prostheses such as dental implants or bridges; in addition, the results show long-term post-treatment stability.
Adult
;
Cicatrix
;
Cleft Lip*
;
Constriction
;
Dental Implants
;
Esthetics
;
Female
;
Gingival Recession*
;
Humans
;
Hyperesthesia
;
Lip
;
Osteogenesis, Distraction*
;
Osteotomy, Sagittal Split Ramus*
;
Palatal Expansion Technique
;
Palate*
;
Prostheses and Implants
;
Recurrence
;
Tooth
;
Tooth Mobility
8.Successful Direct Iliac Transcatheter Aortic Valve Implantation to Overcome Significant Tortuosity of the Thoracic Aorta
Umihiko KANEKO ; Ken KOBAYASHI ; Daisuke HACHINOHE ; Satoshi SUMINO ; Azusa FURUGEN ; Takeshi KAWAMURA ; Hirosato DOI ; Tsutomu FUJITA
Korean Circulation Journal 2018;48(10):949-950
No abstract available.
Aorta, Thoracic
;
Transcatheter Aortic Valve Replacement
9.Successful Direct Iliac Transcatheter Aortic Valve Implantation to Overcome Significant Tortuosity of the Thoracic Aorta
Umihiko KANEKO ; Ken KOBAYASHI ; Daisuke HACHINOHE ; Satoshi SUMINO ; Azusa FURUGEN ; Takeshi KAWAMURA ; Hirosato DOI ; Tsutomu FUJITA
Korean Circulation Journal 2018;48(10):949-950
10.Staged Repair for Transposition of the Great Arteries in a Premature Triplet Weighing 1,336 g
Shogo Matsunaga ; Satoshi Fujita ; Osamu Matsuo ; Kouji Fukae
Japanese Journal of Cardiovascular Surgery 2017;46(5):212-216
Cardiac surgery for very-low-birth-weight infants is rarely reported, especially for a triplet. We herein report the successful staged repair of a premature triplet accompanied with transposition of the great arteries. During pregnancy, the fetuses were diagnosed as dichorionic diamniotic triplets, and the mother entered a hospital for maternal protection and health care from 25 weeks' gestation. The triplets were delivered by Caesarean section at 33 weeks and 5 days of gestation because of intrauterine growth retardation. One of the infants, weighing 1,336 g, was diagnosed with transposition of the great arteries (type II). Since he was deemed unable to endure an intracardiac repair, he received balloon atrial septostomy on the 27th day of life and then bilateral pulmonary artery banding on the 29th day of life. However, further balloon atrial septostomy on day 69 and left pulmonary arterial de-banding on day 73 post-birth were needed because of the progression of hypoxia. He received prolonged intubation and inotropic support after temporary cardiopulmonary stability, and we ultimately decided to perform arterial switch operation on day 110, when he weighed 1,838 g. The patient showed a good recovery. In the field of pediatric cardiac surgery, we occasionally select staged strategies for patients who cannot undergo radical operations all at once because of their general condition or low body weight. However, there are no established guidelines concerning the timing of palliative or radical operations in low-birth-weight infants. At present, we select medical strategies ourselves, on a case-by-case basis. In the present case, although our medical strategy had to be adapted, we still obtained a good recovery for this triplet with extremely low birth weight. We herein report this case with some references from the literature.


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