{"title":"Effects of Protocol-driven Care by Internists on Adherence to Clinical Practice Guidelines for Hip Fracture Surgery Patients: An Interrupted Time Series Study Using a Nationwide Inpatient Database.","authors":"Ayako Tsunemitsu, Jung-Ho Shin, Osamu Hamada, Takahiko Tsutsumi, Noriko Sasaki, Susumu Kunisawa, Yuichi Imanaka","doi":"10.2169/internalmedicine.4358-24","DOIUrl":"10.2169/internalmedicine.4358-24","url":null,"abstract":"<p><p>Objective Patients with hip fractures tend to have a poor prognosis. Although guideline-compliant practices are known to improve patient outcomes, there is a lack of evidence regarding the use of intervention to improve guideline adherence in hip fracture patients. The objective of our study was to evaluate guideline adherence by internists providing care to patients with hip fractures, using a protocol developed based on various guidelines. Method Protocol-driven care for hip fracture patients by internists began in April 2018 at our hospital. After its initiation, orthopedic surgeons performed the surgery, and the internists provided all other medical care. A controlled interrupted time-series analysis was used to evaluate the effects of protocol-driven care on guideline adherence to compare our hospital with other hospitals, using data extracted from a nationwide Japanese inpatient database covering the period April 2014 to March 2023. Results A total of 221,620 inpatients from 373 hospitals were included in the study. The initiation of protocol-driven care was associated with the guideline-recommended prescriptions: osteoporosis medication (incidence rate ratio (IRR): 8.09; 95% confidence interval (CI) 4.02-17.7), acetaminophen (IRR: 2.11; 95% CI 1.55-2.90), non-steroidal anti-inflammatory drugs (IRR: 0.16; 95% CI 0.11-0.24), and opioids (IRR: 5.96; 95% CI 3.14-12.2). However, there was no effect on the proportion of benzodiazepine prescriptions, surgery within 48 hours, deep venous thrombosis prophylaxis, or other perioperative outcomes, including medical fees. Conclusion The initiation of protocol-driven care by internists resulted in improved adherence to osteoporosis medication prescriptions and postoperative analgesic use compared with orthopedic care. This approach can be used as an effective method of care for elderly patients undergoing surgery.</p>","PeriodicalId":13719,"journal":{"name":"Internal Medicine","volume":" ","pages":"2124-2135"},"PeriodicalIF":1.0,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142931829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Aortic Intimal Sarcoma Diagnosed by Surgical Resection.","authors":"Yuki Horiguchi, Kazuya Nishii, Keisuke Shiraha, Taisaku Koyanagi, Takahiro Umeno, Tomoki Tamura, Shoichi Kuyama","doi":"10.2169/internalmedicine.4651-24","DOIUrl":"10.2169/internalmedicine.4651-24","url":null,"abstract":"<p><p>Aortic intimal sarcoma is a rare disease with no established treatment and a poor prognosis. A 70-year-old man who underwent surgery for a mass shadow extending from the ascending aorta to the left common carotid artery on contrast-enhanced computed tomography was diagnosed with intimal sarcoma and underwent postoperative radiotherapy (66 Gy/33 Fr). Three brain metastases were identified after 1.5 months. No recurrence or enlargement was noted for four months following gamma knife radiosurgery and chemotherapy. To our knowledge, this is the first report of gamma knife radiosurgery delaying the progression of aortic intimal sarcoma.</p>","PeriodicalId":13719,"journal":{"name":"Internal Medicine","volume":" ","pages":"2178-2182"},"PeriodicalIF":1.0,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143004786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Fatal C-reactive Protein-less Sepsis with Anti-IL-6 Autoantibody Production after Administration of Durvalumab.","authors":"Shunya Igarashi, Takunori Ogawa, Toshihiro Kushibiki, Koki Ito, Akira Matsukida, Yoshiki Kato, Kaori Nagao, Akihiko Kawana, Yoshifumi Kimizuka","doi":"10.2169/internalmedicine.4754-24","DOIUrl":"10.2169/internalmedicine.4754-24","url":null,"abstract":"<p><p>Durvalumab plus platinum-based chemotherapy is the first-line treatment for extensive-stage small-cell lung cancer. Immune checkpoint inhibitors (durvalumab) can cause immune-related adverse events (irAEs). We herein report the first case of fatal sepsis with anti-interleukin-6 autoantibody production following durvalumab administration. A 62-year-old woman with extensive-stage small-cell lung cancer received carboplatin-etoposide plus durvalumab chemotherapy. Serum C-reactive protein (CRP) levels decreased below the detection sensitivity post-treatment. She developed severe sepsis during maintenance durvalumab therapy; however, her serum CRP level did not increase. The serum tested positive for anti-interleukin-6 autoantibodies, which can cause CRP-less infections. Anti-interleukin-6 autoantibody production and subsequent sepsis without serum CRP elevation are possible irAEs.</p>","PeriodicalId":13719,"journal":{"name":"Internal Medicine","volume":" ","pages":"2213-2217"},"PeriodicalIF":1.0,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142853879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Japanese Spotted Fever with Severe Myositis: A Diagnostic Challenge.","authors":"Keigo Kobayashi, Haruna Baba, Riki Takeda, Susumu Nishiyama, Shu Nakamoto, Yasuhiro Umekawa","doi":"10.2169/internalmedicine.4813-24","DOIUrl":"10.2169/internalmedicine.4813-24","url":null,"abstract":"<p><p>A woman in her late 70s presented with a fever, rashes, and marked proximal muscle weakness. Noninfectious conditions, including myositis and vasculitis, were initially considered. Treatment with cephalosporins was ineffective, but the symptoms improved with minocycline, indicating possible Japanese spotted fever (JSF) despite no apparent history of tick exposure. The diagnosis was confirmed by serological tests. A skin biopsy revealed leukocytoclastic vasculitis with immune complex deposition, suggesting muscle damage due to immune complexes. This case underscores the need to consider JSF in patients with atypical symptoms and initiate timely treatment to prevent severe complications.</p>","PeriodicalId":13719,"journal":{"name":"Internal Medicine","volume":" ","pages":"2249-2254"},"PeriodicalIF":1.0,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142894434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Internal MedicinePub Date : 2025-07-15Epub Date: 2024-12-26DOI: 10.2169/internalmedicine.4682-24
Naoto Minematsu, Nanase Honda, Naoto Yokogawa
{"title":"White Blood Cell Count and Lymphocyte-to-monocyte Ratio as a Screening Tool for Predicting Intravascular Lymphoma in the Differential Diagnosis of Fever of Unknown Origin.","authors":"Naoto Minematsu, Nanase Honda, Naoto Yokogawa","doi":"10.2169/internalmedicine.4682-24","DOIUrl":"10.2169/internalmedicine.4682-24","url":null,"abstract":"<p><p>Objective Intravascular large B-cell lymphoma (IVLBCL) is a critical cause of fever of unknown origin (FUO). While a pathological analysis is essential for diagnosing IVLBCL, the indications for an invasive procedure may be ascertained using easy, non-invasive tests. The lymphocyte-to-monocyte ratio (LMR) can reportedly predict the diagnosis of malignant lymphoma in patients with lymphadenopathy; however, its clinical utility in predicting an IVLBCL diagnosis in patients with FUO remains to be elucidated. Methods The medical records of 91 patients with FUO who underwent a skin biopsy for suspected IVLBCL between January 2010 and April 2023 were retrospectively reviewed. Patients Seventeen and 60 patients with and without pathologically diagnosed IVLBCL, respectively, were included in the analysis. The laboratory data nearest to the timing of the skin biopsy were then compared between the groups. Results Among the variables with an intragroup difference, a low white blood cell (WBC) count and LMR were predictors of an IVLBCL diagnosis after adjusting for covariates. A receiver operating characteristic analysis demonstrated that a WBC ≤7,200 and LMR ≤3.0 predicted the diagnosis with a sensitivity of 88.2% and 100%, and a specificity of 65.0% and 43.3%, respectively. In addition, the probability of IVLBCL increased to 71.4% in patients with both variables but was 0% in those with neither variable, indicating its potential utility in determining the need for an invasive procedure. Conclusion The WBC count and LMR predicted an IVLBCL diagnosis in patients presenting with FUO.</p>","PeriodicalId":13719,"journal":{"name":"Internal Medicine","volume":" ","pages":"2108-2113"},"PeriodicalIF":1.0,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142894447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Hepatocellular Carcinoma Complicated by Fulminant Type 1 Diabetes Mellitus Shortly After Initiation of Durvalumab Plus Tremelimumab.","authors":"Nanase Usui, Yukinori Imai, Kayoko Sugawara, Yoshihito Uchida, Nobuaki Nakayama, Tomoaki Tomiya, Suguru Mizuno, Satoshi Mochida","doi":"10.2169/internalmedicine.4688-24","DOIUrl":"10.2169/internalmedicine.4688-24","url":null,"abstract":"<p><p>A 64-year-old man with cirrhosis was diagnosed with unresectable hepatocellular carcinoma and treated with a combination of durvalumab and tremelimumab. The patient had no history of diabetes mellitus. Three weeks later, the patient developed general fatigue, dry mouth, and polyuria. A subsequent blood examination revealed a blood glucose level of 706 mg/dL and C-peptide level of 0.29 ng/mL, with an HbA1c of 6.4%. The patient was diagnosed with fulminant type 1 diabetes mellitus. Although fulminant type 1 diabetes mellitus is a rare immune-mediated adverse event, it requires prompt attention shortly after the initiation of these agents owing to its severe and emergent nature.</p>","PeriodicalId":13719,"journal":{"name":"Internal Medicine","volume":" ","pages":"2143-2147"},"PeriodicalIF":1.0,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142894324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Metachronous Pancreatic Cancer with Pancreaticobiliary Maljunction Diagnosed Five Years after Cholecystectomy for Gallbladder Cancer, in Which Follow-up Imaging Was Possible Until the Onset of Cancer: A Case Report and Review of the Literature.","authors":"Masaki Miyazawa, Masahiro Yanagi, Tomoyoshi Chiba, Kazuki Nagai, Hidenori Kido, Saiho Sugimoto, Masaki Nishitani, Noriaki Orita, Noboru Takata, Tomoyuki Hayashi, Akihiro Seki, Hidetoshi Nakagawa, Kouki Nio, Takeshi Terashima, Noriho Iida, Shinya Yamada, Hajime Takatori, Tetsuro Shimakami, Eishiro Mizukoshi, Masao Honda, Taro Yamashita","doi":"10.2169/internalmedicine.4581-24","DOIUrl":"10.2169/internalmedicine.4581-24","url":null,"abstract":"<p><p>Whether or not pancreaticobiliary maljunction (PBM) is a risk factor for pancreatic cancer (PC) is unclear. We present a case of metachronous PC with PBM diagnosed after cholecystectomy for gallbladder cancer, in which follow-up imaging was possible until PC onset. A 63-year-old man who had been diagnosed with gallbladder cancer and had undergone cholecystectomy 5 years earlier developed pancreatitis. Pancreatography revealed PBM, and pancreatic duct brush cytology revealed adenocarcinoma. On reviewing the follow-up images, pancreatic morphological abnormalities, which had not been observed before cholecystectomy, were found to have gradually progressed, suggesting that biliopancreatic reflux led to pancreatic carcinogenesis.</p>","PeriodicalId":13719,"journal":{"name":"Internal Medicine","volume":" ","pages":"2170-2177"},"PeriodicalIF":1.0,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143004806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"High Altitude Pulmonary Edema Associated with Climbing Mount Fuji.","authors":"Yosuke Fukuda, Naruhito Oda, Kensuke Izumizaki, Akihiko Tanaka, Hironori Sagara","doi":"10.2169/internalmedicine.4590-24","DOIUrl":"10.2169/internalmedicine.4590-24","url":null,"abstract":"<p><p>A 51-year-old man presented to the emergency department with rapidly progressive dyspnea that developed while climbing Mount Fuji. He had climbed Mount Fuji twice without experiencing similar symptoms. On arrival, his oxygen saturation was 91% on 10 L/min of oxygen with a non-rebreather mask. Chest imaging revealed scattered bilateral infiltrating shadows. He was diagnosed with high-altitude pulmonary edema (HAPE) and treated with high-dose corticosteroids, calcium-channel blockers, antibiotics, and oxygen via a high-flow nasal cannula. The patient responded to treatment and was discharged on day 7. Climbers should be aware of the risk of HAPE when climbing Mount Fuji.</p>","PeriodicalId":13719,"journal":{"name":"Internal Medicine","volume":" ","pages":"2229-2233"},"PeriodicalIF":1.0,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142931834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}