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  1. Wearing masks is easy but taking them off is difficult – A situation in Japan during COVID-19 pandemic and after

    Article • Dialogues in Health, June 2024, Elsevier

    MD, PhD, FACP Hitoshi Sugawara

  2. A risk stratification model for high-flow nasal cannula use in patients with coronavirus disease 2019 in Japan: A single-center retrospective observational cohort study

    Article • PLOS One, February 2024, PLOS

    MD, PhD, FACP Hitoshi Sugawara

  3. Fukuchi-Manabe Score for Infection Control Measures During the Very Early COVID-19 Pandemic Period When Access to Reverse Transcription-Polymerase Chain Reaction Testing Was Poor in Japan: A Single-Center Observational Prospective Cohort Study

    Article • Cureus, February 2024, Springer Science + Business Media

    MD, PhD, FACP Hitoshi Sugawara

  4. Mycobacterium abscessus subspecies massiliense infection with anti-interferon-gamma autoantibodies

    Article • Clinical Infection in Practice, January 2024, Elsevier

    MD, PhD, FACP Hitoshi Sugawara

  5. A risk stratification model for high-flow nasal cannula use in patients with coronavirus disease 2019 in Japan: a single-center retrospective observational cohort study

    Article • August 2023, Cold Spring Harbor Laboratory Press

    MD, PhD, FACP Hitoshi Sugawara

  6. Extensive chronic perianal pyoderma associated with persistent inflammation caused by wearing the same unwashed underwear for more than ten years

    Article • Clinical Case Reports, June 2023, Wiley

    MD, PhD, FACP Hitoshi Sugawara

  7. Recurrent bicycle falls by an elderly man who developed multiple intramuscular abscesses associated with urine leakage secondary to posterior urethral injury caused by pelvic ring disruption

    Article • Clinical Case Reports, June 2023, Wiley

    MD, PhD, FACP Hitoshi Sugawara

  8. Whole Blood Spermine/Spermidine Ratio as a New Indicator of Sarcopenia Status in Older Adults

    Article • Biomedicines, May 2023, MDPI AG

    MD, PhD, FACP Hitoshi Sugawara

  9. Positive Correlation between Relative Concentration of Spermine to Spermidine in Whole Blood and Skeletal Muscle Mass Index: A Possible Indicator of Sarcopenia and Prognosis of Hemodialysis Patients

    Article • Biomedicines, March 2023, MDPI AG

    MD, PhD, FACP Hitoshi Sugawara

  10. Blastic Plasmacytoid Dendritic Cell Neoplasm Mimicking Erythema Nodosum: A Case Report

    Article • Annals of Internal Medicine Clinical Cases, February 2023, American College of Physicians

    MD, PhD, FACP Hitoshi Sugawara

  11. Malignancy-related Hypercalcemia Caused by Metameric Cutaneous Metastasis of Parathyroid Hormone-related Protein-producing Bladder Carcinoma with Squamous Cell Differentiation: An Autopsy Case of Cobb Syndrome

    Article • Internal Medicine, January 2023, Japanese Society of Internal Medicine

    MD, PhD, FACP Hitoshi Sugawara

  12. Appearance of a sore throat caused by the SARS‐CoV ‐2 Omicron variant

    Article • Journal of General and Family Medicine, November 2022, Wiley

    MD, PhD, FACP Hitoshi Sugawara

  13. Cerebral venous thrombosis: MRI for cerebral infarctions that cannot be diagnosed without doubt

    Article • The Korean Journal of Internal Medicine, November 2022, Korean Association of Internal Medicine (KAMJE)

    MD, PhD, FACP Hitoshi Sugawara

  14. Correlation between the 72-hour fatality ratios and out-of-hospital cardiac arrest ratios in patients with extremely high outlier values of 57 laboratory test items: A single-center retrospective inception cohort study

    Article • Medicine, October 2022, Wolters Kluwer Health

    MD, PhD, FACP Hitoshi Sugawara

  15. Malar rash with pancytopenia

    Article • European Journal of Internal Medicine, October 2022, Elsevier

    MD, PhD, FACP Hitoshi Sugawara

  16. Trajectory of SARS-CoV-2 anti-S IgG levels following transfusion and a third dose of BNT162b2 vaccine in a patient with massive postoperative bleeding: A case report

    Article • International Journal of Infectious Diseases, May 2022, Elsevier

    MD, PhD, FACP Hitoshi Sugawara

  17. Subcutaneous Chest Abscess Caused by Candida albicans Infection Following Laparoscopic Cholecystectomy in an Immunocompetent Patient: A Case Report

    Article • Cureus, April 2022, Cureus, Inc.

    MD, PhD, FACP Hitoshi Sugawara

  18. Abdominal Muscle Fasciculations and Amyotrophic Lateral Sclerosis Diagnosis in a Patient Unable to Perform Sit-Ups

    Article • Cureus, March 2022, Cureus, Inc.

    MD, PhD, FACP Hitoshi Sugawara

  19. Intensive or standard blood pressure control in patients with a history of ischemic stroke: RESPECT post hoc analysis

    Article • Hypertension Research, March 2022, Springer Science + Business Media

    MD, PhD, FACP Hitoshi Sugawara

  20. A case of acute longus colli tendinitis: an inflammatory disease that causes sudden neck pain and backward neck bending difficulty

    Article • Oxford Medical Case Reports, February 2022, Oxford University Press (OUP)

    MD, PhD, FACP Hitoshi Sugawara

  21. Application of Point-of-Care Ultrasound Scanning for the Diagnosis of Perianal Abscess

    Article • Cureus, January 2022, Cureus, Inc.

    MD, PhD, FACP Hitoshi Sugawara

  22. “Comb and Target signs” in abdominal CT in patients with purpura

    Article • European Journal of Internal Medicine, January 2022, Elsevier

    MD, PhD, FACP Hitoshi Sugawara

  23. An Autopsy Case of Nonocclusive Mesenteric Ischemia with Bilateral Renal Artery Vasoconstriction

    Article • American Journal of Case Reports, December 2021, International Scientific Literature

    MD, PhD, FACP Hitoshi Sugawara

  24. Endocarditis Caused by Zoonotic Pathogens and Antiphospholipid Syndrome Are Possible Differential Diagnoses

    Article • Internal Medicine, November 2021, Japanese Society of Internal Medicine

    MD, PhD, FACP Hitoshi Sugawara

  25. Multidrug Antibiotic Therapy for a Non-Human Immunodeficiency Virus-Infected Patient With Clarithromycin-Resistant Disseminated Mycobacterium avium Complex Disease

    Article • Cureus, October 2021, Cureus, Inc.

    MD, PhD, FACP Hitoshi Sugawara

  26. Comprehensive infection control measures prevent hospital-acquired severe acute respiratory syndrome coronavirus 2 infection: A single-center prospective cohort study and seroprevalence survey

    Article • PLOS One, October 2021, PLOS

    MD, PhD, FACP Hitoshi Sugawara

  27. A Case of Wernicke Encephalopathy with Frozen Eyes

    Article • Internal Medicine, September 2021, Japanese Society of Internal Medicine

    MD, PhD, FACP Hitoshi Sugawara

  28. Egg‐shaped aortic thrombi associated with COVID‐19

    Article • Journal of General and Family Medicine, August 2021, Wiley

    MD, PhD, FACP Hitoshi Sugawara

  29. Prolapse of the Urinary Bladder into the Groin: a Case of Inguinal Bladder Hernia

    Article • Journal of General Internal Medicine, August 2021, Springer Science + Business Media

    MD, PhD, FACP Hitoshi Sugawara

  30. Native mitral valve infective endocarditis caused by Staphylococcus warneri: A case‐based review

    Article • Clinical Case Reports, July 2021, Wiley

    MD, PhD, FACP Hitoshi Sugawara

  31. Prediction of 72-hour mortality in patients with extremely high serum C-reactive protein levels using a novel weighted average of risk scores

    Article • PLOS One, February 2021, PLOS

    MD, PhD, FACP Hitoshi Sugawara

  32. Anticoagulant Therapy for Frail Patients with Atrial Fibrillation

    Article • Internal Medicine, February 2021, Japanese Society of Internal Medicine

    MD, PhD, FACP Hitoshi Sugawara

  33. Predicting 72-h mortality in patients with extremely high random plasma glucose levels

    Article • Medicine, January 2021, Wolters Kluwer Health

    MD, PhD, FACP Hitoshi Sugawara

  34. A retrospective cross-sectional study for predicting 72-h mortality in patients with serum aspartate aminotransferase levels ≥ 3000 U/L

    Article • Scientific Reports, January 2021, Springer Science + Business Media

    MD, PhD, FACP Hitoshi Sugawara

  35. Spontaneous Pyogenic Spondylitis and Possible Infective Endocarditis Caused by Aggregatibacter actinomycetemcomitans

    Article • Internal Medicine, January 2021, Japanese Society of Internal Medicine

    MD, PhD, FACP Hitoshi Sugawara

  36. Chronic urticaria with inflammation

    Article • European Journal of Internal Medicine, January 2021, Elsevier

    MD, PhD, FACP Hitoshi Sugawara

  37. Additional Bacteriological Examinations Might be Required for the Correct Identification of Staphylococcus warneri

    Article • Internal Medicine, January 2021, Japanese Society of Internal Medicine

    MD, PhD, FACP Hitoshi Sugawara

  38. A woman with adult‐onset Still's disease and acute intestinal pseudo‐obstruction

    Article • Clinical Case Reports, November 2020, Wiley

    MD, PhD, FACP Hitoshi Sugawara

  39. Adrenal crisis precipitated by influenza A led to the diagnosis of Sheehan's syndrome 18 years after postpartum hemorrhage

    Article • Clinical Case Reports, September 2020, Wiley

    MD, PhD, FACP Hitoshi Sugawara

  40. “Tree‐in‐bud” opacities with false‐positive Gaffky score and diffuse aspiration bronchiolitis

    Article • Journal of General and Family Medicine, September 2020, Wiley

    MD, PhD, FACP Hitoshi Sugawara

  41. Point‐of‐care ultrasound for prompt diagnosis and treatment monitoring of acute epiglottitis

    Article • Journal of General and Family Medicine, September 2020, Wiley

    MD, PhD, FACP Hitoshi Sugawara

  42. The effectiveness of transcutaneous cervical ultrasonography for diagnosing peritonsillar abscess in a patient complaining of sore throat

    Article • Journal of General and Family Medicine, August 2020, Wiley

    MD, PhD, FACP Hitoshi Sugawara

  43. Presence of anti-transcriptional intermediary factor-1 gamma antibodies in a dermatomyositis patient with retroperitoneal cancer of unknown primary site

    Article • Modern Rheumatology Case Reports, July 2020, Taylor & Francis

    MD, PhD, FACP Hitoshi Sugawara

  44. Refractory aphthae in the epiglottis and supraglottic area due to Crohn's disease

    Article • Journal of General and Family Medicine, June 2020, Wiley

    MD, PhD, FACP Hitoshi Sugawara

  45. Verrucous lupus erythematosus localized to the oral mucosa and fingers rapidly progressed to systemic lupus erythematosus followed by fatal invasive aspergillosis

    Article • International Journal of Dermatology, June 2020, Wiley

    MD, PhD, FACP Hitoshi Sugawara

  46. Sternal osteomyelitis and infective endocarditis after old trivial chest trauma in untreated diabetes mellitus: A case report

    Article • Journal of General and Family Medicine, June 2020, Wiley

    MD, PhD, FACP Hitoshi Sugawara, Dr Masahiro Kashiura

  47. Giant cell arteritis manifested by chronic dry cough

    Article • BMJ Case Reports, June 2020, BMJ

    MD, PhD, FACP Hitoshi Sugawara

  48. At-a-glance diagnosis of postherpetic abdominal pseudohernia

    Article • International Journal of Infectious Diseases, June 2020, Elsevier

    MD, PhD, FACP Hitoshi Sugawara

  49. Were Additional Treatments Affecting the Pharmacokinetics Administered after Raltegravir Overdosing?

    Article • Internal Medicine, May 2020, Japanese Society of Internal Medicine

    MD, PhD, FACP Hitoshi Sugawara

  50. Importance of actively suspecting intracranial hypotension with diagnostic imaging prior to lumbar puncture

    Article • Journal of General and Family Medicine, May 2020, Wiley

    MD, PhD, FACP Hitoshi Sugawara

  51. Fat ring sign and tumoral pseudocapsule sign in idiopathic mesenteric panniculitis complicated by protein‐losing enteropathy

    Article • Journal of General and Family Medicine, April 2020, Wiley

    MD, PhD, FACP Hitoshi Sugawara

  52. Praziquantel Could Be the Appropriate Choice for the Diagnostic Treatment of Schistosomiasis

    Article • Internal Medicine, March 2020, Japanese Society of Internal Medicine

    MD, PhD, FACP Hitoshi Sugawara

  53. Early Operation and Establishment of an Endocarditis Team

    Article • Internal Medicine, January 2020, Japanese Society of Internal Medicine

    MD, PhD, FACP Hitoshi Sugawara

  54. Initial Narrow- or Broad-Spectrum Treatment for Meningoencephalitis

    Article • Internal Medicine, January 2020, Japanese Society of Internal Medicine

    MD, PhD, FACP Hitoshi Sugawara

  55. Rapid Progression of Cardiobacterium Endocarditis

    Article • Internal Medicine, January 2020, Japanese Society of Internal Medicine

    MD, PhD, FACP Hitoshi Sugawara

  56. Why Did the Patient not Show any Neurological Symptoms on the Day of the Higher Serum Concentration of Ceftriaxone?

    Article • Internal Medicine, January 2020, Japanese Society of Internal Medicine

    MD, PhD, FACP Hitoshi Sugawara

  57. Did Acute Kidney Injury and/or Tuberculosis Kill the Patients?

    Article • Internal Medicine, December 2019, Japanese Society of Internal Medicine

    MD, PhD, FACP Hitoshi Sugawara

  58. Imported Brucellosis In The Era Of Dramatically Increasing Immigrants And Foreign Travelers From Endemic Areas: Occupational Hazards Of Secondary Infection Among Laboratory Technicians In A Nonendemic Country

    Article • International Medical Case Reports Journal, October 2019, Taylor & Francis

    MD, PhD, FACP Hitoshi Sugawara

  59. Should Less Invasive Treatment Options, Such as Vitrectomy, Be Considered for Endogenous Bacterial Endophthalmitis?

    Article • Internal Medicine, September 2019, Japanese Society of Internal Medicine

    MD, PhD, FACP Hitoshi Sugawara

  60. Infection of Helicobacter cinaedi Should Be Treated for an Adequate Duration with Combined Antibiotic Therapy

    Article • Internal Medicine, September 2019, Japanese Society of Internal Medicine

    MD, PhD, FACP Hitoshi Sugawara

  61. Both Macro and Micro Filarial Treatment May Be Necessary to Treat Hydrocele Due to a Wuchereria bancrofti Infection

    Article • Internal Medicine, August 2019, Japanese Society of Internal Medicine

    MD, PhD, FACP Hitoshi Sugawara

  62. The Addition of Prophylactic Antibiotics Can Achieve a Favorable Outcome

    Article • Internal Medicine, August 2019, Japanese Society of Internal Medicine

    MD, PhD, FACP Hitoshi Sugawara

  63. Acute splenic infarction presenting as an unusual manifestation of essential thrombocythaemia with normal platelet count

    Article • BMJ Case Reports, July 2019, BMJ

    MD, PhD, FACP Hitoshi Sugawara

  64. Unclassified Vasculitis with Episcleritis, Thrombophlebitis, Deep Vein Thrombosis, Pulmonary Vasculitis, and Intracranial Vasculitis: An Autopsy Case Report

    Article • American Journal of Case Reports, June 2019, International Scientific Literature

    MD, PhD, FACP Hitoshi Sugawara

  65. Rapid Progression of Lung Cancer Following Emergency Caesarean Section Led to Postpartum Acute Respiratory Failure

    Article • Internal Medicine, April 2019, Japanese Society of Internal Medicine

    MD, PhD, FACP Hitoshi Sugawara

  66. Dysosmia and dysgeusia associated with duloxetine

    Article • BMJ Case Reports, November 2017, BMJ

    MD, PhD, FACP Hitoshi Sugawara

  67. Anaphylactoid Purpura Associated with Streptococcal Cellulitis: A Case Report and Literature Review

    Article • Case Reports in Medicine, January 2017, Hindawi Publishing Corporation

    MD, PhD, FACP Hitoshi Sugawara

  68. D‐shaped Left Ventricle in a Smoker with Fatal Pulmonary Langerhans Cell Histiocytosis

    Article • Journal of General and Family Medicine, June 2016, Wiley

    MD, PhD, FACP Hitoshi Sugawara

  69. Nocardia Intramuscular Abscess in an Elderly Patient

    Article • Internal Medicine, January 2016, Japanese Society of Internal Medicine

    MD, PhD, FACP Hitoshi Sugawara

  70. Aortic Intimal Sarcoma Contributes to Atherosclerotic Renovascular Hypertension: An Autopsy Case Report and Review of the Literature

    Article • Internal Medicine, January 2016, Japanese Society of Internal Medicine

    MD, PhD, FACP Hitoshi Sugawara

  71. Is May and Thurner's Original Article Appropriate for Characterizing the Iliac Vein Compression Syndrome?

    Article • Internal Medicine, January 2016, Japanese Society of Internal Medicine

    MD, PhD, FACP Hitoshi Sugawara

  72. Regarding the Ambiguity of the Medical Terms "Biologics" and "Biological Agents"

    Article • Internal Medicine, January 2016, Japanese Society of Internal Medicine

    MD, PhD, FACP Hitoshi Sugawara

  73. Successful Tocilizumab Therapy for Macrophage Activation Syndrome Associated with Adult-Onset Still’s Disease: A Case-Based Review

    Article • Case Reports in Medicine, January 2016, Hindawi Publishing Corporation

    MD, PhD, FACP Hitoshi Sugawara

  74. Candidemia from an Upper Urinary Tract Infection Complicated by Candida Endophthalmitis

    Article • Internal Medicine, January 2015, Japanese Society of Internal Medicine

    MD, PhD, FACP Hitoshi Sugawara

  75. Involvement of cAMP/EPAC/TRPM2 Activation in Glucose- and Incretin-Induced Insulin Secretion

    Article • Diabetes, May 2014, American Diabetes Association

    MD, PhD, FACP Hitoshi Sugawara

  76. Coxsackie A16 Virus-associated Atypical Hand-foot-and-mouth Disease

    Article • Internal Medicine, January 2014, Japanese Society of Internal Medicine

    MD, PhD, FACP Hitoshi Sugawara

  77. Parsonage-Turner Syndrome Initially Suspected of Being Orthopedic Diseases in a Primary Care Setting: A Case Report

    Article • Journal of Medical Cases, January 2014, Elmer Press, Inc.

    MD, PhD, FACP Hitoshi Sugawara

  78. A community-based cross-sectional and longitudinal study uncovered asymptomatic proteinuria in Japanese adults with low body weight

    Article • Kidney International, December 2013, Elsevier

    MD, PhD, FACP Hitoshi Sugawara

  79. Hypercalcemia and Peripheral T-Cell Lymphoma-Type Lymphoproliferative Disorder Associated With Methotrexate in a Rheumatoid Arthritis Patient

    Article • Journal of Medical Cases, January 2013, Elmer Press, Inc.

    MD, PhD, FACP Hitoshi Sugawara

  80. Value of Prostate-Specific Antigen Elevated in Transudative Pleural Effusion for Diagnosis of Prostate Cancer-Induced Paramalignant Pleural Effusion

    Article • Journal of Medical Cases, January 2013, Elmer Press, Inc.

    MD, PhD, FACP Hitoshi Sugawara

  81. An Elderly Patient who Developed Spontaneous Spinal Epidural Hematoma during Warfarin Therapy

    Article • Internal Medicine, January 2012, Japanese Society of Internal Medicine

    MD, PhD, FACP Hitoshi Sugawara

  82. Co-infection with Group A Streptococci and Epstein-Barr Virus Presenting with Acute Glomerulonephritis and Acute Left Ventricular Dysfunction

    Article • Internal Medicine, January 2012, Japanese Society of Internal Medicine

    MD, PhD, FACP Hitoshi Sugawara

  83. Latent associations of low serum amylase with decreased plasma insulin levels and insulin resistance in asymptomatic middle-aged adults

    Article • Cardiovascular Diabetology, January 2012, Springer Science + Business Media

    MD, PhD, FACP Hitoshi Sugawara

  84. Circulating osteocalcin is increased in early-stage diabetes

    Article • Diabetes Research and Clinical Practice, May 2011, Elsevier

    MD, PhD, FACP Hitoshi Sugawara

  85. Voltage-dependent metabolic regulation of Kv2.1 channels in pancreatic β-cells

    Article • Biochemical and Biophysical Research Communications, May 2010, Elsevier

    MD, PhD, FACP Hitoshi Sugawara

  86. Regulation of voltage-gated K+channels by glucose metabolism in pancreatic β-cells

    Article • FEBS Letters, June 2009, Wiley

    MD, PhD, FACP Hitoshi Sugawara

  87. Fatal Hemoperitoneum Preceded by Cranial Hypertrophic Pachymeningitis in a Patient with ANCA-Positive Microscopic Polyangitis

    Article • Internal Medicine, January 2008, Japanese Society of Internal Medicine

    MD, PhD, FACP Hitoshi Sugawara

  88. Nocturnal Epilepsy Associated with Sleep Apnea Syndrome

    Article • Nihon Naika Gakkai Zasshi, January 2007, Japanese Society of Internal Medicine

    MD, PhD, FACP Hitoshi Sugawara

  89. An Incidentally Found Case of Multiple Localized Segmented Painless Dissections of the Descending Aorta Like Gnarled Tree

    Article • Internal Medicine, January 2006, Japanese Society of Internal Medicine

    MD, PhD, FACP Hitoshi Sugawara

  90. Protein-losing Enteropathy Associated with Immune Complex-mediated Vasculopathy in a Case of Undifferentiated Connective Tissue Disease

    Article • Internal Medicine, January 2005, Japanese Society of Internal Medicine

    MD, PhD, FACP Hitoshi Sugawara

  91. Churg-Strauss Syndrome Associated with Hypersensitivity to Acetaminophen

    Article • Internal Medicine, January 2005, Japanese Society of Internal Medicine

    MD, PhD, FACP Hitoshi Sugawara

  92. Atypical varicella mimicking hand-foot-mouth disease in an adult patient with malignant lymphoma during chemotherapy

    Article • British Journal of Dermatology, July 2004, Wiley

    MD, PhD, FACP Hitoshi Sugawara

  93. Genetic evidence for involvement of type 1,type 2and type 3inositol 1,4,5-trisphosphate receptors in signal transduction through the B-cell antigen receptor

    Article • The EMBO Journal, June 1997, Wiley

    MD, PhD, FACP Hitoshi Sugawara

  94. CD45 Modulates Phosphorylation of Both Autophosphorylation and Negative Regulatory Tyrosines of Lyn in B Cells

    Article • Journal of Biological Chemistry, November 1996, American Society for Biochemistry & Molecular Biology (ASBMB)

    MD, PhD, FACP Hitoshi Sugawara

  95. Antioxidant Effects of Calcium Antagonists on Rat Myocardial Membrane Lipid Peroxidation.

    Article • Hypertension Research, January 1996, Japanese Society of Hypertension

    MD, PhD, FACP Hitoshi Sugawara

  96. Absence of antioxidant effects of nifedipine and diltiazem on myocardial membrane lipid peroxidation in contrast with those of nisoldipine and propranolol

    Article • Biochemical Pharmacology, March 1994, Elsevier

    MD, PhD, FACP Hitoshi Sugawara

  97. Comparison of 24-hour ambulatory ECG findings with hemodynamic and echocardiographic parameters in patients with hypertrophic cardiomyopathy.

    Article • Japanese Journal of Electrocardiology, January 1992, The Japanese Society of Electrocardiology

    MD, PhD, FACP Hitoshi Sugawara