1.Long-term treatment results of pembrolizumab monotherapy: reconsideration of immune checkpoint inhibitor monotherapy
Takanobu SASAKI ; Takafumi SUGAWARA ; Toshiharu TABATA ; Naoya ISHIBASHI ; Hideki MITOMO ; Yutaka OSHIMA ; Ryo NONOMURA
Journal of Rural Medicine 2024;19(4):273-278
Objective: The extended outcomes of the KEYNOTE-024 study demonstrated a favorable 5-year overall survival (OS) rate of 31.9%. The present study investigated the outcomes of pembrolizumab monotherapy for advanced or recurrent non-small cell lung cancer (NSCLC) at our institution.Patient: The long-term outcomes of 102 patients with advanced or recurrent NSCLC treated with pembrolizumab monotherapy between March 2017 and December 2022 were retrospectively assessed.Results: This study included a total of 102 patients [mean age: 72 ± 9.6 years (range: 41–91 years), male/female=77/25; performance status (PS; 0, 1, 2, 3, 4)=49/38/15/0/0; smokers=91 (89%), non-squamous cell carcinoma/squamous cell carcinoma=66/36, PD-L1 tumor proportion score (TPS) ≥50%/1–49%=80/22, positive for EGFR mutation=5, advanced/postoperative recurrence=51/51, treatment line: first/second or later=81/21, treatment courses: median 8 (range: 1–39), objective response rate/disease control rate=44%/55%, immune-related adverse events (irAEs): 47, 5-year OS=34%]. On univariate analysis, PS, PD-L1 TPS, and irAEs were significant prognostic factors. On multivariate analysis, histology, PD-L1 TPS, and irAEs were significant prognostic factors.Conclusion: Pembrolizumab monotherapy demonstrated promising treatment outcomes for advanced or recurrent NSCLC, as evidenced by the significant association of PD-L1 TPS with irAEs and prognosis, suggesting its potential as a beneficial therapeutic option.
2.Efficacy of hemostasis by gastroduodenal covered metal stent placement for hemorrhagic duodenal stenosis due to pancreatobiliary cancer invasion: a retrospective study
Yasunari SAKAMOTO ; Taku SAKAMOTO ; Akihiro OHBA ; Mitsuhito SASAKI ; Shunsuke KONDO ; Chigusa MORIZANE ; Hideki UENO ; Yutaka SAITO ; Yasuaki ARAI ; Takuji OKUSAKA
Clinical Endoscopy 2024;57(5):628-636
Background/Aims:
Advanced pancreatic and biliary tract cancers can invade the duodenum and cause duodenal hemorrhagic stenosis. This study aimed to evaluate the efficacy of covered self-expandable metal stents in the treatment of cancer-related duodenal hemorrhage with stenosis.
Methods:
Between January 2014 and December 2016, metal stents were placed in 51 patients with duodenal stenosis. Among these patients, a self-expandable covered metal stent was endoscopically placed in 10 patients with hemorrhagic duodenal stenosis caused by pancreatobiliary cancer progression. We retrospectively analyzed the therapeutic efficacy of the stents by evaluating the technical and clinical success rates based on successful stent placement, degree of oral intake, hemostasis, stent patency, and overall survival.
Results:
The technical and clinical success rates were 100%. All 10 patients achieved a gastric outlet obstruction scoring system score of three within two weeks after the procedure and had no recurrence of melena. The median stent patency duration and overall survival after stent placement were 52 days (range, 20–220 days) and 66.5 days (range, 31–220 days), respectively.
Conclusions
Endoscopic placement of a covered metal stent for hemorrhagic duodenal stenosis associated with pancreatic or biliary tract cancer resulted in duodenal hemostasis, recanalization, and improved quality of life.
3.A Calcified Amorphous Tumor from the Aortic Valve to the Tricuspid Valve with Aortic Valve Stenosis
Takashi HARADA ; Hideki SASAKI ; Hiroshi ISHITOYA
Japanese Journal of Cardiovascular Surgery 2020;49(2):58-61
We report a rare case of a hemodialysis patient with calcified amorphous tumor (CAT) originating from aortic valve cusp that continues to tricuspid valve, which may be related to aortic annular calcification and aortic valve stenosis. A 79-year-old female with chronic kidney disease on hemodialysis for 16 years was transferred to our hospital with loss of consciousness. Echocardiography revealed aortic valve stenosis and presence of tumor on the aortic valve and tricuspid valve. We suspected the presence of a cardiac tumor or vegetation. We underwent tumor resection of tricuspid valve and aortic valve replacement and coronary artery bypass grafting (SVG-RCA). Pathological findings of the tumor was CAT.
4.Active Tuberculosis With Rapidly-Growing Pulmonary Lesion in a Hospitalized Dermatomyositis Patient Below Age 40
Kohei FUJITA ; Makoto NAKAO ; Ayano WATANABE ; Mamoru SUGIHARA ; Sosuke ARAKAWA ; Yusuke SAKAI ; Yuto SUZUKI ; Hidefumi SATO ; Kaneshige SASAKI ; Hideki MURAMATSU
Journal of the Japanese Association of Rural Medicine 2020;69(2):165-170
A 38-year-old man was admitted to our hospital with fever and skin rash, and he was diagnosed as having dermatomyositis. He was treated with anti-inflammatory steroid and immunosuppressive agents. On hospital day 48, chest computed tomography (CT) revealed a nodule measuring approximately 2 cm in size in the lower lobe of the right lung (S9). Bacterial and/or fungal infection was suspected, but there was no response to antibiotic or antifungal treatment. A week later, repeat chest CT revealed the tumor now measuring approximately 6 cm in size in the lower lobe of the right lung. We performed bronchoscopy, and bacteriological examination of the transbronchial biopsy specimen revealed pulmonary tuberculosis. Interferongamma release assay (IGRA) before the initiation of immunosuppressive treatment was negative, so we did not administer treatment for latent tuberculosis infection. He was, however, treated with isoniazid, rifampicin, ethambutol, and pyrazinamide for 9 months, following which radiological features improved gradually. Here we describe in detail this rare case of a negative IGRA result before immunosuppressive therapy in a relatively young Japanese man who went on to develop active tuberculosis with a rapidly-growing pulmonary lesion during hospitalization.
5.Effects of Weekly Teriparatide Administration for Vertebral Stability and Bony Union in Patients with Acute Osteoporotic Vertebral Fractures
Kazuma KITAGUCHI ; Masafumi KASHII ; Kosuke EBINA ; Satoru SASAKI ; Yasunori TSUKAMOTO ; Hideki YOSHIKAWA ; Tsuyoshi MURASE
Asian Spine Journal 2019;13(5):763-771
STUDY DESIGN: An open-label, non-randomized prospective study. PURPOSE: Teriparatide (TPTD) is known to be an antiosteoporotic agent that may accelerate the healing of fractures. This study was designed to investigate the effect of once-weekly TPTD administration on vertebral stability and bony union after acute osteoporotic vertebral fracture (OVF). OVERVIEW OF LITERATURE: Once-weekly TPTD administration can lead to early vertebral stability and promote bony union of fractured vertebrae in patients with severe osteoporosis. METHODS: Forty-eight subjects with acute OVF were assigned to receive activated vitamin D3 and calcium supplementation or onceweekly subcutaneous injection of TPTD (56.5 μg) in combination with activated vitamin D3 and calcium supplementation for 12 weeks. Vertebral stability was assessed using lateral plain radiography. Vertebral height at the anterior location (VHa) and the difference in VHa {ΔVHa=VHa (supine position)−VHa (weight-bearing position)} were measured at baseline and 12 weeks after starting treatment. Bony union was defined as the absence of a vertebral cleft or abnormal motion (ΔVHa >2 mm). RESULTS: Although not significant, ΔVHa, indicating vertebral stability, tended to be lower in the TPTD group at 12 weeks (p=0.17). As for subjects with severe osteoporosis, ΔVHa at 12 weeks was significantly lower in the TPTD group than in the control group (mean ΔVHa: control group, 3.1 mm (n=15); TPTD group, 1.4 mm (n=16); p=0.02). The rate of bony union was significantly higher in the TPTD group than in the control group (control group, 40%; TPTD group, 81%; p=0.03). CONCLUSIONS: Once-weekly TPTD administration may facilitate early bony union after acute OVF accompanied by severe osteoporosis.
6.Predicting outcomes to optimize disease management in inflammatory bowel disease in Japan: their differences and similarities to Western countries.
Taku KOBAYASHI ; Tadakazu HISAMATSU ; Yasuo SUZUKI ; Haruhiko OGATA ; Akira ANDOH ; Toshimitsu ARAKI ; Ryota HOKARI ; Hideki IIJIMA ; Hiroki IKEUCHI ; Yoh ISHIGURO ; Shingo KATO ; Reiko KUNISAKI ; Takayuki MATSUMOTO ; Satoshi MOTOYA ; Masakazu NAGAHORI ; Shiro NAKAMURA ; Hiroshi NAKASE ; Tomoyuki TSUJIKAWA ; Makoto SASAKI ; Kaoru YOKOYAMA ; Naoki YOSHIMURA ; Kenji WATANABE ; Miiko KATAFUCHI ; Mamoru WATANABE ; Toshifumi HIBI
Intestinal Research 2018;16(2):168-177
Inflammatory bowel disease (IBD), including Crohn's disease (CD) and ulcerative colitis (UC), is a chronic inflammatory disease of the gastrointestinal tract, with increasing prevalence worldwide. IBD Ahead is an international educational program that aims to explore questions commonly raised by clinicians about various areas of IBD care and to consolidate available published evidence and expert opinion into a consensus for the optimization of IBD management. Given differences in the epidemiology, clinical and genetic characteristics, management, and prognosis of IBD between patients in Japan and the rest of the world, this statement was formulated as the result of literature reviews and discussions among Japanese experts as part of the IBD Ahead program to consolidate statements of factors for disease prognosis in IBD. Evidence levels were assigned to summary statements in the following categories: disease progression in CD and UC; surgery, hospitalization, intestinal failure, and permanent stoma in CD; acute severe UC; colectomy in UC; and colorectal carcinoma and dysplasia in IBD. The goal is that this statement can aid in the optimization of the treatment strategy for Japanese patients with IBD and help identify high-risk patients that require early intervention, to provide a better long-term prognosis in these patients.
Asian Continental Ancestry Group
;
Colectomy
;
Colitis, Ulcerative
;
Colorectal Neoplasms
;
Consensus
;
Crohn Disease
;
Disease Management*
;
Disease Progression
;
Early Intervention (Education)
;
Epidemiology
;
Expert Testimony
;
Gastrointestinal Tract
;
Hospitalization
;
Humans
;
Inflammatory Bowel Diseases*
;
Japan*
;
Prevalence
;
Prognosis
7.Successful Repair of Tricuspid Valve Endocarditis in a Drug Abuser
Hiroaki Uchida ; Hayato Konishi ; Yoshikazu Motohashi ; Mari Kakita ; Eiki Woo ; Tomoyasu Sasaki ; Shigetoshi Mieno ; Masahiro Daimon ; Hideki Ozawa ; Takahiro Katsumata
Japanese Journal of Cardiovascular Surgery 2013;42(2):120-123
This case report describes a 20-year-old man, who was a drug abuser, and was treated surgically for tricuspid valve endocarditis. He presented with fever, caused by tricuspid valve endocarditis with a lung abscess. Blood culture detected Staphylococcus aureus and cardiac ultrasonography showed tricuspid insufficiency and tricuspid valve vegetation. He was treated with intravenous antibacterial agents, but the inflammation signs did not improve. He had a large number of puncture scars, as a consequence of self-injection of drugs in his lower arm. He underwent tricuspid valve plasty, and recovered successfully. He was discharged 2 weeks after surgery, and we instructed him to return for follow-up examination in our hospital. However, he did not return to our hospital because he was arrested for drug possession. In such cases, it is necessary to consider the operative method relative to reuse of drugs in the postoperative management of medication.
8.Two Cases of Pseudoaneurysms in Multiple Anastomotic Sites Occurring after the Original Bentall and Cabrol Procedure
Tomoyasu Sasaki ; Hayato Konishi ; Yoshikazu Motohashi ; Hiroaki Uchida ; Mari Kakita ; Eiki Woo ; Sachiko Kanki ; Masahiro Daimon ; Hideki Ozawa ; Takahiro Katsumata
Japanese Journal of Cardiovascular Surgery 2012;41(4):188-190
We report two cases of pseudoaneurysms occurring at the anastomotic sites that had to be repaired several times after the original Bentall and Cabrol procedure. Case 1. A 62-year-old man had surgery to repair pseudoaneurysms at the anastomotic sites of the distal ascending aorta and right coronary artery 22 years after undergoing the original Bentall procedure. The anastomosis of the left coronary artery was normal at the time of the operation ; however, he was given a diagnosis of a pseudoaneurysm at the anastomotic site of the left coronary artery 2 years after the operation. Case 2. A 61-year-old man with Marfan syndrome underwent surgery twice to repair pseudoaneurysms at the anastomotic sites of the aortic annulus and the left coronary artery 2 and 11 years, respectively, after the original Cabrol procedure. In addition, 23 years after the Cabrol procedure, he was given a diagnosis of a pseudoaneurysm at the anastomotic site of the distal ascending aorta. Their pseudoaneurysms were successfully treated by the reanastomosis of new grafts. Computed tomography detected no recurrence of the pseudoaneurysm in the follow-up period. However, continual close observation for the recurrence of a pseudoaneurysm in the remaining anastomotic sites is necessary.
9.Surgical Treatment for Kommerell Diverticulm
Shigetoshi Mieno ; Hideki Ozawa ; Masahiro Daimon ; Tomoyasu Sasaki ; Eiki Woo ; Takahiro Katsumata
Japanese Journal of Cardiovascular Surgery 2011;40(3):144-149
We report 3 surgical cases of aortic graft replacement with reconstruction of an aberrant subclavian artery (ASA) for Kommerell diverticulum (KD) and ASA. Cases 1 and 2 both had a right aortic arch, KD and a left ASA. In these 2 cases, we performed distal aortic arch replacement and in-situ reconstruction of the left ASA via a right thoracotomy. Case 3 had an aortic arch aneurysm, KD and a right ASA. In this patient, we chose median sternotomy and total aortic arch replacement, using 2 pieces of artificial grafts with 1 and 4 branches, respectively. The right ASA was reconstructed by end-to-side anastomosis between the right axillary artery and the side branch of the graft with 1 branch. In all 3 cases, cardiopulmonary bypass and deep hypothermia with a rectal temperature under 18°C were used in aortic graft replacement. In addition to deep hypothermia, either antegrade or retrograde cerebral perfusion was introduced, depending on the surgical situation, to provide additional brain protection. Selective ASA perfusion was performed in all patients during aortic graft replacement. In Case 1, aortic anastomosis was achieved while clamping, and cerebral perfusion was maintained via a cannula for aortic return at the ascending aorta. In Cases 2 and 3, aortic anastomosis was performed under deep hypothermic circulatory arrest, using retrograde and antegrade cerebral perfusion respectively in Cases 2 and 3. The postoperative course was uneventful in all 3 patients.
10.An Update of Sports Medicine in Persons with Disabilities—Surviving Skeleton Muscles are Endocrine Organs—
Fumihiro TAJIMA ; Kazunari FURUSAWA ; Taro NAKAMURA ; Hidenobu OKUMA ; Yuichi UMEZU ; Makoto IDE ; Takashi MIZUSHIMA ; Mari UETA ; Takeshi NAKAMURA ; Takamitsu KAWAZU ; Hideki ARAKAWA ; Tomoyuki ITO ; Midori YAMANAKA ; Ken KOUDA ; Masaki GOTO ; Yusuke SASAKI ; Nami KANNO ; Takashi KAWASAKI ; Yasunori UMEMOTO ; Tomoya SHIMOMATSU ; Motohiko BANNO ; Hiroyasu UENISHI ; Hiroyuki OKAWA ; Ko ASAYAMA
The Japanese Journal of Rehabilitation Medicine 2010;47(5):304-309


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