1.Association between ligamentous stenosis at spondylolisthetic segments before fusion surgery and symptomatic adjacent canal stenosis at follow-up in patients with degenerative spondylolisthesis
Yosuke OISHI ; Eiichiro NAKAMURA ; Masaaki MURASE ; Katsumi DOI ; Yoshinori TAKEUCHI ; Jun-ichi HAMAWAKI ; Akinori SAKAI
Asian Spine Journal 2024;18(3):425-434
Methods:
In total, 76 patients participated in this case-control study (neurologically symptomatic adjacent canal stenosis, n=33; neurologically asymptomatic cases at follow-up, n=43). Their risk factors during surgery and magnetic resonance (MR) images before the surgery and at follow-up were evaluated. Data from the two groups (n=25 each) were matched using propensity scores for age, sex, time to MR imaging at follow-up, surgical procedure, and LF hypertrophy in adjacent segments before the surgery and analyzed.
Results:
Compared with the asymptomatic group, the symptomatic adjacent canal stenosis group had a significantly larger LF area/spinal canal area in the spondylolisthetic segments before the surgery. During the follow-up periods (in months), they had a larger LF area/ spinal canal area in the adjacent segments: the two values were significantly correlated. The sensitivity, specificity, and positive and negative predictive values for determining symptomatic adjacent canal stenosis were high compared with on the cutoff value for the LF area/spinal canal area at the spondylolisthetic segments before the surgery. These results were the same after matching.
Conclusions
Symptomatic adjacent canal stenosis is mainly caused by LF hypertrophy. Ligamentous stenosis at the spondylolisthetic segments before fusion surgery might be strongly associated with symptomatic adjacent canal stenosis at follow-up.
2.Prevalent morphometric vertebral fractures as a risk factor for subsequent clinical vertebral fractures after shortfusion surgery in older Japanese women with degenerative spondylolisthesis
Yosuke OISHI ; Eiichiro NAKAMURA ; Keiji MURAMATSU ; Masaaki MURASE ; Katsumi DOI ; Yoshinori TAKEUCHI ; Jun-ichi HAMAWAKI ; Akinori SAKAI
Asian Spine Journal 2024;18(3):435-443
Methods:
The study enrolled a total of 237 older female patients: 50 and 187 patients had prevalent morphometric VFs (VF [+] group) and nonprevalent morphometric VFs (VF [−] group), respectively. The time to subsequent clinical VFs after fusion surgery was compared between the two groups using the Kaplan-Meier method. Moreover, 40 and 80 patients in the VF (+) and VF (−) groups, respectively, were analyzed and matched by propensity scores for age, follow-up duration, surgical procedure, number of fused segments, body mass index, and number of patients treated for osteoporosis.
Results:
Kaplan-Meier analysis indicated that the VF (+) group had a higher incidence of subsequent clinical VFs than the VF (−) group, and Cox regression analysis showed that the presence of prevalent morphometric VFs was an independent risk factor for subsequent clinical VFs before matching. Kaplan-Meier analysis demonstrated comparable results after matching.
Conclusions
The presence of prevalent morphometric VFs may be a risk factor for subsequent clinical VFs in older women with degenerative spondylolisthesis who underwent short-fusion surgery.
3.Increased Cooperation with Dentistry by the Palliative Care Team
Hideaki Kawabata ; Masanori Nishikawa ; Hirosato Inoda ; Akio Tanaka ; Naoki Kakihara ; Chiaki Taga ; Mutsumi Kohigashi ; Mitsuo Nakamura ; Chisa Hasegawa ; Eiichiro Kanda ; Masako Nishimura ; Yukari Nakagawa ; Yoko Nishitani ; Mariko Nose ; Kota Asano ; Miwa Sakuma ; Keiko Fujimura
Palliative Care Research 2016;11(1):901-905
Recently, the palliative care team (PCT) at our hospital has included dentists. Among a total of 127 cancer patientsand required PCT intervention from 2009 to 2014, 17 patients (13.3%) had oral symptoms. Therefore, the PCT held discussions in order to determine the optimal way to treat each patient. Various symptoms, including oral pain, dry mouth, taste disturbance, furred tongue, excessive amounts of saliva, appetite loss, and trismus were treated by the dentists. As a result, the oral findings improved in all patients, while the oral symptoms improved in 16 of the 17 patients (94%). Thanks to the fact that dentists have joined the PCT, oral symptoms are effectively relieved, and PCT members now have an increased interest in oral cavity complications. Furthermore, conducting thorough examinations of the oral cavity by the PCT not only results in an improved QOL, but it has also increased the interest in the oral cavity on the part of the PCT. Therefore, more effective palliative care is expected to be achieved by promoting increased cooperation with more clinical departments.
4.Chronic obstructive pulmonary disease severity in middle-aged and older men with steoporosis associates with decreased bone formation
Manabu TSUKAMOTO ; Toshiharu MORI ; Eiichiro NAKAMURA ; Yasuaki OKADA ; Hokuto FUKUDA ; Yoshiaki YAMANAKA ; Ken SABANAI ; Ke-Yong WANG ; Takeshi HANAGIRI ; Satoshi KUBOI ; Kazuhiro YATERA ; Akinori SAKAI
Osteoporosis and Sarcopenia 2020;6(4):179-187
Objectives:
Chronic obstructive pulmonary disease (COPD) is a risk factor for osteoporosis. Nevertheless, much remains unclear regarding the bone metabolism dynamics associated with COPD. The present study focuses on the associations between the COPD severity and serum bone metabolism biomarkers.
Methods:
We enrolled 40 patients who visited the orthopedics departments at our institutions and underwent dual-energy X-ray absorptiometry between September 2015 and December 2017. Only male osteoporosis patients over 45 years of age were included, and 5 patients were excluded due to disease or use of internal medicines affecting bone metabolism. All subjects underwent lung function testing, spine radiography, and blood tests. We measured percent forced expiratory volume in 1 second (%FEV1), which reflects COPD severity, and we examined the relationships between %FEV1and serum levels of bone metabolism biomarkers.
Results:
All subjects were diagnosed with osteoporosis based on T-scores. %FEV1 correlated with body weight, body mass index (BMI), and Z-score/T-scores. %FEV1 moderately correlated with serum levels of alkaline phosphatase (ALP), procollagen type 1 N-terminal propeptide (P1NP), and tartrate-resistant acid phosphatase 5b in the partial correlation analysis adjusted for BMI or T-score in the lumbar vertebrae. We performed a hierarchical multiple regression analysis to identify that serum ALP and P1NP were the independent explanatory variables to %FEV1 independent of other factors.
Conclusions
The data suggest that the COPD severity in middle-aged and older men with osteoporosis associates with decreased bone formation. COPD patients may exhibit bone metabolism dynamics characterized by low bone turnover with osteogenesis dysfunction as COPD becomes severe.
5.Chronic obstructive pulmonary disease severity in middle-aged and older men with steoporosis associates with decreased bone formation
Manabu TSUKAMOTO ; Toshiharu MORI ; Eiichiro NAKAMURA ; Yasuaki OKADA ; Hokuto FUKUDA ; Yoshiaki YAMANAKA ; Ken SABANAI ; Ke-Yong WANG ; Takeshi HANAGIRI ; Satoshi KUBOI ; Kazuhiro YATERA ; Akinori SAKAI
Osteoporosis and Sarcopenia 2020;6(4):179-187
Objectives:
Chronic obstructive pulmonary disease (COPD) is a risk factor for osteoporosis. Nevertheless, much remains unclear regarding the bone metabolism dynamics associated with COPD. The present study focuses on the associations between the COPD severity and serum bone metabolism biomarkers.
Methods:
We enrolled 40 patients who visited the orthopedics departments at our institutions and underwent dual-energy X-ray absorptiometry between September 2015 and December 2017. Only male osteoporosis patients over 45 years of age were included, and 5 patients were excluded due to disease or use of internal medicines affecting bone metabolism. All subjects underwent lung function testing, spine radiography, and blood tests. We measured percent forced expiratory volume in 1 second (%FEV1), which reflects COPD severity, and we examined the relationships between %FEV1and serum levels of bone metabolism biomarkers.
Results:
All subjects were diagnosed with osteoporosis based on T-scores. %FEV1 correlated with body weight, body mass index (BMI), and Z-score/T-scores. %FEV1 moderately correlated with serum levels of alkaline phosphatase (ALP), procollagen type 1 N-terminal propeptide (P1NP), and tartrate-resistant acid phosphatase 5b in the partial correlation analysis adjusted for BMI or T-score in the lumbar vertebrae. We performed a hierarchical multiple regression analysis to identify that serum ALP and P1NP were the independent explanatory variables to %FEV1 independent of other factors.
Conclusions
The data suggest that the COPD severity in middle-aged and older men with osteoporosis associates with decreased bone formation. COPD patients may exhibit bone metabolism dynamics characterized by low bone turnover with osteogenesis dysfunction as COPD becomes severe.
6.Switching to systemic therapy after locoregionaltreatment failure: Definition and best timing
Sadahisa OGASAWARA ; Yoshihiko OOKA ; Keisuke KOROKI ; Susumu MARUTA ; Hiroaki KANZAKI ; Kengo KANAYAMA ; Kazufumi KOBAYASHI ; Soichiro KIYONO ; Masato NAKAMURA ; Naoya KANOGAWA ; Tomoko SAITO ; Takayuki KONDO ; Eiichiro SUZUKI ; Shingo NAKAMOTO ; Akinobu TAWADA ; Tetsuhiro CHIBA ; Makoto ARAI ; Jun KATO ; Naoya KATO
Clinical and Molecular Hepatology 2020;26(2):155-162
In patients with unresectable hepatocellular carcinoma (HCC) without both macrovascular invasion and extrahepatic metastasis, the initial treatment choice recommended is transarterial chemoembolization (TACE). Before sorafenib came into wide use, TACE had been pointlessly carried out repeatedly. It was in the early 2010s that the concept of TACE refractory was advocated. Two retrospective studies from Japan indicated that conversion from TACE to sorafenib the day after patients were deemed as TACE refractory improved overall survival compared with continued TACE, according to the definition by the Japan Society of Hepatology. Nowadays, phase 3 trials have shown clinical benefits of several novel molecular target agents. Compared with the era of sorafenib, sequential treatments with these molecular target agents have gradually prolonged patients’ survival and have become major strategies in patients with HCC. Taking these together, conversion from TACE to systemic therapies at the time of TACE refractory, compared with before, may have a greater impact on survival and may be considered deeper in the decisions-making process in patients with unresectable HCC who are candidate for TACE. Up-to-date information on the concept of TACE refractory is summarized in this review. We believe that the survival of patients with unresectable HCC without both macrovascular invasion and extrahepatic metastasis may be dramatically improved by optimal timing of TACE refractory and switching to systemic therapies.