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profileKohei Hasegawa, M.D.

TitleAssistant Professor of Emergency Medicine
InstitutionMassachusetts General Hospital
DepartmentEmergency Medicine
AddressMassachusetts General Hospital
Emergency Medicine
55 Fruit St
Boston MA 02114
Phone617/724-3290
Fax617/724-0917
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Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Faculty can login to make corrections and additions.
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  1. Laham FR, Mansbach JM, Piedra PA, Hasegawa K, Sullivan AF, Espinola JA, Camargo CA. Clinical Profiles of Respiratory Syncytial Virus Subtypes A and B among Children Hospitalized with Bronchiolitis. Pediatr Infect Dis J. 2017 Apr 05. PMID: 28383391.
    View in: PubMed
  2. Hasegawa K, Mansbach JM, Ajami NJ, Petrosino JF, Freishtat RJ, Teach SJ, Piedra PA, Camargo CA. The relationship between nasopharyngeal CCL5 and microbiota on disease severity among infants with bronchiolitis. Allergy. 2017 Mar 17. PMID: 28306146.
    View in: PubMed
  3. Raja AS, Venkatesh A, Mick N, Zabbo CP, Hasegawa K, Espinola JA, Bittner JC, Camargo CA. "Choosing Wisely" Imaging Recommendations: Initial Implementation in New England Emergency Departments. West J Emerg Med. 2017 Apr; 18(3):454-458. PMID: 28435496.
    View in: PubMed
  4. Robinson A, Fiechtner L, Roche B, Ajami NJ, Petrosino JF, Camargo CA, Taveras EM, Hasegawa K. Association of Maternal Gestational Weight Gain With the Infant Fecal Microbiota. J Pediatr Gastroenterol Nutr. 2017 Mar 07. PMID: 28272161.
    View in: PubMed
  5. Goto Y, Goto T, Hagiwara Y, Tsugawa Y, Watase H, Okamoto H, Hasegawa K. Techniques and outcomes of emergency airway management in Japan: An analysis of two multicentre prospective observational studies, 2010-2016. Resuscitation. 2017 May; 114:14-20. PMID: 28219617.
    View in: PubMed
  6. Shimada YJ, Tsugawa Y, Iso H, Brown DF, Hasegawa K. Association between bariatric surgery and rate of hospitalisations for stable angina pectoris in obese adults. Heart. 2017 Feb 16. PMID: 28209590.
    View in: PubMed
  7. Silverman RA, Hasegawa K, Egan DJ, Stiffler KA, Sullivan AF, Camargo CA. Multicenter study of cigarette smoking among adults with asthma exacerbations in the emergency department, 2011-2012. Respir Med. 2017 Apr; 125:89-91. PMID: 28214106.
    View in: PubMed
  8. Okubo M, Gibo K, Hagiwara Y, Nakayama Y, Hasegawa K. The effectiveness of rapid sequence intubation (RSI) versus non-RSI in emergency department: an analysis of multicenter prospective observational study. Int J Emerg Med. 2017 Dec; 10(1):1. PMID: 28124199.
    View in: PubMed
  9. Bernard K, Hasegawa K, Sullivan A, Camargo C. A Profile of Indian Health Service Emergency Departments. Ann Emerg Med. 2017 Jan 19. PMID: 28110985.
    View in: PubMed
  10. Press VG, Hasegawa K, Heidt J, Bittner JC, Camargo CA. Missed opportunities to transition from nebulizers to inhalers during hospitalization for acute asthma: a multi-center observational study. J Asthma. 2017 Jan 17; 0. PMID: 28095080.
    View in: PubMed
  11. Sato C, Takaya T, Mori S, Hasegawa K, Soga F, Tanaka H, Watanabe Y, Nishii T, Kono AK, Morinaga Y, Ishibashi-Ueda H, Hirata KI. An Isolated Case of Late-onset Amyloidogenic Transthyretin Type Familial Amyloid Polyneuropathy Associated with a Mutant Transthyretin Substituting Methionine for Valine at Position 30 Showing Latent Progressive Cardiac Involvement Confirmed by Serial Annual Electrocardiograms. Intern Med. 2017; 56(2):163-168. PMID: 28090046.
    View in: PubMed
  12. Sato N, Hagiwara Y, Watase H, Hasegawa K. A comparison of emergency airway management between neuromuscular blockades alone and rapid sequence intubation: an analysis of multicenter prospective study. BMC Res Notes. 2017 Jan 03; 10(1):6. PMID: 28057073.
    View in: PubMed
  13. Hasegawa K, Linnemann RW, Mansbach JM, Ajami NJ, Espinola JA, Fiechtner LG, Petrosino JF, Camargo CA. Household siblings and nasal and fecal microbiota in infants. Pediatr Int. 2017 Apr; 59(4):473-481. PMID: 27638139.
    View in: PubMed
  14. Hasegawa K, Linnemann RW, Mansbach JM, Ajami NJ, Espinola JA, Petrosino JF, Piedra PA, Stevenson MD, Sullivan AF, Thompson AD, Camargo CA. Nasal Airway Microbiota Profile and Severe Bronchiolitis in Infants: A Case-Control Study. Pediatr Infect Dis J. 2016 Dec 21. PMID: 28005692.
    View in: PubMed
  15. Hasegawa K, Takaya T, Mori S, Ito T, Fujiwara S, Nishii T, K Kono A, Shimoura H, Tanaka H, Hirata KI. Compression of the Right Ventricular Outflow Tract due to Straight Back Syndrome Clarified by Low-dose Dual-source Computed Tomography. Intern Med. 2016; 55(22):3279-3283. PMID: 27853069.
    View in: PubMed
  16. Hasegawa K, Mansbach JM, Ajami NJ, Petrosino JF, Freishtat RJ, Teach SJ, Piedra PA, Camargo CA. Serum cathelicidin, nasopharyngeal microbiota, and disease severity among infants hospitalized with bronchiolitis. J Allergy Clin Immunol. 2017 Apr; 139(4):1383-1386.e6. PMID: 27845236.
    View in: PubMed
  17. Hasegawa K, Tsugawa Y, Camargo CA. Response. Chest. 2016 Nov; 150(5):1165-1166. PMID: 27832887.
    View in: PubMed
  18. Hasegawa K, Mansbach JM, Ajami NJ, Espinola JA, Henke DM, Petrosino JF, Piedra PA, Shaw CA, Sullivan AF, Camargo CA. Association of nasopharyngeal microbiota profiles with bronchiolitis severity in infants hospitalised for bronchiolitis. Eur Respir J. 2016 Nov; 48(5):1329-1339. PMID: 27799386.
    View in: PubMed
  19. Goto T, Camargo CA, Hasegawa K. Fractional exhaled nitric oxide levels in asthma-COPD overlap syndrome: analysis of the National Health and Nutrition Examination Survey, 2007-2012. Int J Chron Obstruct Pulmon Dis. 2016; 11:2149-2155. PMID: 27660432.
    View in: PubMed
  20. Weiner SG, Raja AS, Bittner JC, Curtis KM, Weimersheimer P, Hasegawa K, Espinola JA, Camargo CA. Opioid-related Policies in New England Emergency Departments. Acad Emerg Med. 2016 Sep; 23(9):1086-90. PMID: 27098615.
    View in: PubMed
  21. Sanders JL, Raja AS, Hasegawa K, Bittner J, Espinola JA, Olamiju B, Sullivan AF, Camargo CA. Decline in Consultant Availability in Massachusetts Emergency Departments: 2005 to 2014. Ann Emerg Med. 2016 Oct; 68(4):461-6. PMID: 27569109.
    View in: PubMed
  22. Yasuda H, Hagiwara Y, Watase H, Hasegawa K. Nocturnal emergency department visits, duration of symptoms and risk of hospitalisation among adults with asthma exacerbations: a multicentre observational study. BMJ Open. 2016 Aug 12; 6(8):e010670. PMID: 27519919; PMCID: PMC4985786.
  23. Balekian DS, Linnemann RW, Hasegawa K, Thadhani R, Camargo CA. Cohort Study of Severe Bronchiolitis during Infancy and Risk of Asthma by Age 5 Years. J Allergy Clin Immunol Pract. 2017 Jan - Feb; 5(1):92-96. PMID: 27523277.
    View in: PubMed
  24. Bittner JC, Hasegawa K, Probst BD, Mould-Millman NK, Silverman RA, Camargo CA. Smoking status and smoking cessation intervention among U.S. adults hospitalized for asthma exacerbation. Allergy Asthma Proc. 2016 Jul; 37(4):318-23. PMID: 27401318.
    View in: PubMed
  25. Hasegawa K, Linnemann RW, Mansbach JM, Ajami NJ, Espinola JA, Petrosino JF, Piedra PA, Stevenson MD, Sullivan AF, Thompson AD, Camargo CA. The Fecal Microbiota Profile and Bronchiolitis in Infants. Pediatrics. 2016 Jul; 138(1). PMID: 27354456; PMCID: PMC4925084 [Available on 07/01/17].
  26. Dumas O, Mansbach JM, Jartti T, Hasegawa K, Sullivan AF, Piedra PA, Camargo CA. A clustering approach to identify severe bronchiolitis profiles in children. Thorax. 2016 Aug; 71(8):712-8. PMID: 27339060; PMCID: PMC5036390 [Available on 08/01/17].
  27. Hasegawa K, Dumas O, Hartert TV, Camargo CA. Advancing our understanding of infant bronchiolitis through phenotyping and endotyping: clinical and molecular approaches. Expert Rev Respir Med. 2016 Aug; 10(8):891-9. PMID: 27192374; PMCID: PMC4975526 [Available on 08/01/17].
  28. Goto T, Yoshida K, Tsugawa Y, Filbin MR, Camargo CA, Hasegawa K. Mortality trends in U.S. adults with septic shock, 2005-2011: a serial cross-sectional analysis of nationally-representative data. BMC Infect Dis. 2016 Jun 14; 16:294. PMID: 27301657; PMCID: PMC4908776.
  29. Jinno S, Hasegawa K, Neogi T, Goto T, Dubreuil M. Trends in Emergency Department Visits and Charges for Gout in the United States between 2006 and 2012. J Rheumatol. 2016 Aug; 43(8):1589-92. PMID: 27252429.
    View in: PubMed
  30. Goto T, Tsugawa Y, Mansbach JM, Camargo CA, Hasegawa K. Trends in Infectious Disease Hospitalizations in US Children, 2000 to 2012. Pediatr Infect Dis J. 2016 06; 35(6):e158-63. PMID: 26967815; PMCID: PMC4912127 [Available on 06/01/17].
  31. Hasegawa K, Takaya T, Mori S, Soga F, Takahashi H, Terashita D, Otake H, Hirata K. Transient Ischemic Right Axis Deviation Tendency of the Frontal Plane QRS Axis in a Case of Inferior Myocardial Ischemia. Int Heart J. 2016 May 25; 57(3):363-6. PMID: 27149998.
    View in: PubMed
  32. Hasegawa K, Brenner BE, Nowak RM, Trent SA, Herrera V, Gabriel S, Bittner JC, Camargo CA. Association of Guideline-concordant Acute Asthma Care in the Emergency Department With Shorter Hospital Length of Stay: A Multicenter Observational Study. Acad Emerg Med. 2016 05; 23(5):616-22. PMID: 26833429.
    View in: PubMed
  33. Mansbach JM, Hasegawa K, Henke DM, Ajami NJ, Petrosino JF, Shaw CA, Piedra PA, Sullivan AF, Espinola JA, Camargo CA. Respiratory syncytial virus and rhinovirus severe bronchiolitis are associated with distinct nasopharyngeal microbiota. J Allergy Clin Immunol. 2016 Jun; 137(6):1909-1913.e4. PMID: 27061249; PMCID: PMC4899255 [Available on 06/01/17].
  34. Hasegawa K, Tsugawa Y, Clark S, Eastin CD, Gabriel S, Herrera V, Bittner JC, Camargo CA. Improving Quality of Acute Asthma Care in US Hospitals: Changes Between 1999-2000 and 2012-2013. Chest. 2016 Jul; 150(1):112-22. PMID: 27056585.
    View in: PubMed
  35. Goto T, Gibo K, Hagiwara Y, Okubo M, Brown DF, Brown CA, Hasegawa K. Factors Associated with First-Pass Success in Pediatric Intubation in the Emergency Department. West J Emerg Med. 2016 Mar; 17(2):129-34. PMID: 26973736; PMCID: PMC4786230.
  36. Shimada YJ, Tsugawa Y, Brown DF, Hasegawa K. Bariatric Surgery and Emergency Department Visits and Hospitalizations for Heart Failure Exacerbation: Population-Based, Self-Controlled Series. J Am Coll Cardiol. 2016 Mar 01; 67(8):895-903. PMID: 26916477.
    View in: PubMed
  37. Hasegawa K, Gibo K, Tsugawa Y, Shimada YJ, Camargo CA. Age-Related Differences in the Rate, Timing, and Diagnosis of 30-Day Readmissions in Hospitalized Adults With Asthma Exacerbation. Chest. 2016 Apr; 149(4):1021-9. PMID: 26836926.
    View in: PubMed
  38. Kawano T, Nishiyama K, Morita H, Yamamura O, Hiraide A, Hasegawa K. Association between shelter crowding and incidence of sleep disturbance among disaster evacuees: a retrospective medical chart review study. BMJ Open. 2016 Jan 13; 6(1):e009711. PMID: 26769785; PMCID: PMC4735147.
  39. Hasegawa K, Stoll SJ, Ahn J, Kysia RF, Sullivan AF, Camargo CA. Association of Insurance Status with Severity and Management in ED Patients with Asthma Exacerbation. West J Emerg Med. 2016 Jan; 17(1):22-7. PMID: 26823926; PMCID: PMC4729414.
  40. Goto T, Tsugawa Y, Camargo CA, Hasegawa K. Sex differences in the risk of hospitalization among patients presenting to US emergency departments with asthma exacerbation, 2010-2012. J Allergy Clin Immunol Pract. 2016 Jan-Feb; 4(1):149-51.e2. PMID: 26772929.
    View in: PubMed
  41. Goto T, Yoshida K, Tsugawa Y, Camargo CA, Hasegawa K. Infectious Disease-Related Emergency Department Visits of Elderly Adults in the United States, 2011-2012. J Am Geriatr Soc. 2016 Jan; 64(1):31-6. PMID: 26696501.
    View in: PubMed
  42. Hasegawa K, Camargo CA. Prevalence of blood eosinophilia in hospitalized patients with acute exacerbation of COPD. Respirology. 2016 May; 21(4):761-4. PMID: 26699685.
    View in: PubMed
  43. Hasegawa K, Linnemann RW, Avadhanula V, Mansbach JM, Piedra PA, Gern JE, Camargo CA. Detection of respiratory syncytial virus and rhinovirus in healthy infants. BMC Res Notes. 2015 Nov 25; 8:718. PMID: 26608824; PMCID: PMC4660840.
  44. Hasegawa K, Calhoun WJ, Pei YV, Chasm RM, Youngquist ST, Bittner JC, Camargo CA. Sex differences in hospital length of stay in children and adults hospitalized for asthma exacerbation. Ann Allergy Asthma Immunol. 2015 Dec; 115(6):533-5.e1. PMID: 26481171.
    View in: PubMed
  45. Hasegawa K, Mansbach JM, Piedra PA, Dunn MB, Clark S, Sullivan AF, Camargo CA. Eligibility for palivizumab prophylaxis in a cohort of children with severe bronchiolitis. Pediatr Int. 2015 Oct; 57(5):1031-4. PMID: 26508190.
    View in: PubMed
  46. Tsugawa Y, Hasegawa K, Hiraide A, Jha AK. Regional health expenditure and health outcomes after out-of-hospital cardiac arrest in Japan: an observational study. BMJ Open. 2015 Aug 19; 5(8):e008374. PMID: 26289451; PMCID: PMC4550714.
  47. Hasegawa K, Stoll SJ, Ahn J, Bittner JC, Camargo CA. Prevalence of eosinophilia in hospitalized patients with asthma exacerbation. Respir Med. 2015 Sep; 109(9):1230-2. PMID: 26198894.
    View in: PubMed
  48. Hasegawa K, Ahn J, Brown MA, Press VG, Gabriel S, Herrera V, Bittner JC, Camargo CA. Underuse of guideline-recommended long-term asthma management in children hospitalized to the intensive care unit: a multicenter observational study. Ann Allergy Asthma Immunol. 2015 Jul; 115(1):10-6.e1. PMID: 26123420.
    View in: PubMed
  49. Hasegawa K, Tsugawa Y, Cohen A, Camargo CA. Infectious Disease-related Emergency Department Visits Among Children in the US. Pediatr Infect Dis J. 2015 Jul; 34(7):681-5. PMID: 25860534; PMCID: PMC4565505.
  50. Hasegawa K, Stevenson MD, Mansbach JM, Schroeder AR, Sullivan AF, Espinola JA, Piedra PA, Camargo CA. Association Between Hyponatremia and Higher Bronchiolitis Severity Among Children in the ICU With Bronchiolitis. Hosp Pediatr. 2015 Jul; 5(7):385-9. PMID: 26136313; PMCID: PMC4888787.
  51. Hagiwara Y, Watase H, Okamoto H, Goto T, Hasegawa K. Prospective validation of the modified LEMON criteria to predict difficult intubation in the ED. Am J Emerg Med. 2015 Oct; 33(10):1492-6. PMID: 26166379.
    View in: PubMed
  52. Venkat A, Hasegawa K, Basior JM, Crandall C, Healy M, Inboriboon PC, Sullivan AF, Camargo CA. Race/ethnicity and asthma management among adults presenting to the emergency department. Respirology. 2015 Aug; 20(6):994-7. PMID: 26081521.
    View in: PubMed
  53. Hasegawa K, Bittner JC, Nonas SA, Stoll SJ, Watase T, Gabriel S, Herrera V, Camargo CA. Children and Adults With Frequent Hospitalizations for Asthma Exacerbation, 2012-2013: A Multicenter Observational Study. J Allergy Clin Immunol Pract. 2015 Sep-Oct; 3(5):751-8.e1. PMID: 26028297.
    View in: PubMed
  54. Hasegawa K, Camargo CA. Airway microbiota and acute respiratory infection in children. Expert Rev Clin Immunol. 2015; 11(7):789-92. PMID: 25961472; PMCID: PMC4828966.
  55. Chasm RM, Pei YV, Pallin DJ, Shapiro N, Snyder B, Sullivan AF, Camargo CA, Hasegawa K. Sex differences in risk of hospitalization among emergency department patients with acute asthma. Ann Allergy Asthma Immunol. 2015 Jul; 115(1):70-2.e1. PMID: 25956241.
    View in: PubMed
  56. Watase H, Hagiwara Y, Chiba T, Camargo CA, Hasegawa K. Multicentre observational study of adults with asthma exacerbations: who are the frequent users of the emergency department in Japan? BMJ Open. 2015 Apr 28; 5(4):e007435. PMID: 25922104; PMCID: PMC4420980.
  57. Waseem M, Leber MJ, Wasserman EJ, Sullivan AF, Camargo CA, Hasegawa K. Factors associated with concordance with the non-level-A guideline recommendations for emergency department patients with acute asthma. J Allergy Clin Immunol Pract. 2015 Jul-Aug; 3(4):618-20.e2. PMID: 25869584.
    View in: PubMed
  58. Jartti T, Hasegawa K, Mansbach JM, Piedra PA, Camargo CA. Rhinovirus-induced bronchiolitis: Lack of association between virus genomic load and short-term outcomes. J Allergy Clin Immunol. 2015 Aug; 136(2):509-12.e11. PMID: 25840721.
    View in: PubMed
  59. Sugiyama T, Hasegawa K, Kobayashi Y, Takahashi O, Fukui T, Tsugawa Y. Differential time trends of outcomes and costs of care for acute myocardial infarction hospitalizations by ST elevation and type of intervention in the United States, 2001-2011. J Am Heart Assoc. 2015 Mar 23; 4(3):e001445. PMID: 25801759; PMCID: PMC4392430.
  60. Hasegawa K, Tsugawa Y, Chang Y, Camargo CA. Risk of an asthma exacerbation after bariatric surgery in adults. J Allergy Clin Immunol. 2015 Aug; 136(2):288-94.e8. PMID: 25670012.
    View in: PubMed
  61. Nakao S, Kimura A, Hagiwara Y, Hasegawa K. Trauma airway management in emergency departments: a multicentre, prospective, observational study in Japan. BMJ Open. 2015 Feb 04; 5(2):e006623. PMID: 25652800; PMCID: PMC4322207.
  62. Hasegawa K, Cydulka RK, Sullivan AF, Langdorf MI, Nonas SA, Nowak RM, Wang NE, Camargo CA. Improved management of acute asthma among pregnant women presenting to the ED. Chest. 2015 Feb; 147(2):406-14. PMID: 25358070.
    View in: PubMed
  63. Goto T, Gibo K, Hagiwara Y, Morita H, Brown DF, Brown CA, Hasegawa K. Multiple failed intubation attempts are associated with decreased success rates on the first rescue intubation in the emergency department: a retrospective analysis of multicentre observational data. Scand J Trauma Resusc Emerg Med. 2015 Jan 16; 23:5. PMID: 25700237; PMCID: PMC4307194.
  64. Hasegawa K, Pate BM, Mansbach JM, Macias CG, Fisher ES, Piedra PA, Espinola JA, Sullivan AF, Camargo CA. Risk factors for requiring intensive care among children admitted to ward with bronchiolitis. Acad Pediatr. 2015 Jan-Feb; 15(1):77-81. PMID: 25528126; PMCID: PMC4454380 [Available on 01/01/16].
  65. Goto T, Watase H, Morita H, Nagai H, Brown CA, Brown DF, Hasegawa K. Repeated attempts at tracheal intubation by a single intubator associated with decreased success rates in emergency departments: an analysis of a multicentre prospective observational study. Emerg Med J. 2015 Oct; 32(10):781-6. PMID: 25552546.
    View in: PubMed
  66. Hasegawa K, Jartti T, Mansbach JM, Laham FR, Jewell AM, Espinola JA, Piedra PA, Camargo CA. Respiratory syncytial virus genomic load and disease severity among children hospitalized with bronchiolitis: multicenter cohort studies in the United States and Finland. J Infect Dis. 2015 May 15; 211(10):1550-9. PMID: 25425699; PMCID: PMC4481613.
  67. Hasegawa K, Tsugawa Y, Lopez BL, Smithline HA, Sullivan AF, Camargo CA. Body mass index and risk of hospitalization among adults presenting with asthma exacerbation to the emergency department. Ann Am Thorac Soc. 2014 Nov; 11(9):1439-44. PMID: 25314160.
    View in: PubMed
  68. Goto T, Koyama Y, Kondo T, Tsugawa Y, Hasegawa K. A comparison of the force applied on oral structures during intubation attempts between the Pentax-AWS airwayscope and the Macintosh laryngoscope: a high-fidelity simulator-based study. BMJ Open. 2014 Oct 08; 4(10):e006416. PMID: 25296656; PMCID: PMC4194748.
  69. Hasegawa K, Sullivan AF, Tsugawa Y, Turner SJ, Massaro S, Clark S, Tsai CL, Camargo CA. Comparison of US emergency department acute asthma care quality: 1997-2001 and 2011-2012. J Allergy Clin Immunol. 2015 Jan; 135(1):73-80. PMID: 25263233.
    View in: PubMed
  70. Yoshizaki T, Midorikawa T, Hasegawa K, Mitani T, Komatsu T, Togo F. Associations between diurnal 24-hour rhythm in ambulatory heart rate variability and the timing and amount of meals during the day shift in rotating shift workers. PLoS One. 2014; 9(9):e106643. PMID: 25211024; PMCID: PMC4161375.
  71. Hasegawa K, Sullivan AF, Tovar Hirashima E, Gaeta TJ, Fee C, Turner SJ, Massaro S, Camargo CA. A multicenter observational study of US adults with acute asthma: who are the frequent users of the emergency department? J Allergy Clin Immunol Pract. 2014 Nov-Dec; 2(6):733-40. PMID: 25439365.
    View in: PubMed
  72. Hasegawa K, Tsugawa Y, Camargo CA, Brown DF. Frequent utilization of the emergency department for acute heart failure syndrome: a population-based study. Circ Cardiovasc Qual Outcomes. 2014 Sep; 7(5):735-42. PMID: 25139183.
    View in: PubMed
  73. Hasegawa K, Espinola JA, Brown DF, Camargo CA. Trends in U.S. emergency department visits for opioid overdose, 1993-2010. Pain Med. 2014 Oct; 15(10):1765-70. PMID: 25139712.
    View in: PubMed
  74. Sullivan AF, Hasegawa K, Linnemann RW, Long AA, Teuber SS, Turner SJ, Massaro S, Camargo CA. An update on United States asthma centers: 2013. Ann Allergy Asthma Immunol. 2014 Oct; 113(4):484-6.e1. PMID: 25129486.
    View in: PubMed
  75. Hasegawa K, Mansbach JM, Teach SJ, Fisher ES, Hershey D, Koh JY, Clark S, Piedra PA, Sullivan AF, Camargo CA. Multicenter study of viral etiology and relapse in hospitalized children with bronchiolitis. Pediatr Infect Dis J. 2014 Aug; 33(8):809-13. PMID: 24577039; PMCID: PMC4145057.
  76. Goto Y, Watase H, Brown III CA, Tsuboi S, Kondo T, Brown DFM, Hasegawa K. Emergency airway management by resident physicians in Japan: An analysis of multicentre prospective observational study. Acute Med Surg. 2014.
  77. Hasegawa K, Brenner BE, Clark S, Camargo CA. Emergency department visits for acute asthma by adults who ran out of their inhaled medications. Allergy Asthma Proc. 2014 May-Jun; 35(3):42-50. PMID: 24801458; PMCID: PMC4012130.
  78. Hasegawa K, Tsugawa Y, Tsai CL, Brown DF, Camargo CA. Frequent utilization of the emergency department for acute exacerbation of chronic obstructive pulmonary disease. Respir Res. 2014 Apr 10; 15:40. PMID: 24717062; PMCID: PMC3997196.
  79. Hasegawa K, Mansbach JM, Camargo CA. Infectious pathogens and bronchiolitis outcomes. Expert Rev Anti Infect Ther. 2014 Jul; 12(7):817-28. PMID: 24702592.
    View in: PubMed
  80. Hasegawa K, Brown DF, Tsugawa Y, Camargo CA. Epidemiology of emergency department visits for opioid overdose: a population-based study. Mayo Clin Proc. 2014 Apr; 89(4):462-71. PMID: 24629443.
    View in: PubMed
  81. Kawano T, Hasegawa K, Watase H, Morita H, Yamamura O. Infectious disease frequency among evacuees at shelters after the great eastern Japan earthquake and tsunami: a retrospective study. Disaster Med Public Health Prep. 2014 Feb; 8(1):58-64. PMID: 24606871.
    View in: PubMed
  82. Hasegawa K, Tsugawa Y, Brown DF, Camargo CA. A population-based study of adults who frequently visit the emergency department for acute asthma. California and Florida, 2009-2010. Ann Am Thorac Soc. 2014 Feb; 11(2):158-66. PMID: 24298941.
    View in: PubMed
  83. Hasegawa K, Tsugawa Y, Brown DF, Mansbach JM, Camargo CA. Temporal trends in emergency department visits for bronchiolitis in the United States, 2006 to 2010. Pediatr Infect Dis J. 2014 Jan; 33(1):11-8. PMID: 23934206; PMCID: PMC3984903.
  84. Hagiwara Y, Hasegawa K, Watase H, Chiba T. Residency and career satisfaction among Anglo-American model emergency medicine residents in Japan. Acute Med Surg. 2013; (1):44-52.
  85. Nishida M, Kosaka K, Hasegawa K, Nishikawa K, Itoi T, Tsukimura T, Togawa T, Sakuraba H, Hamaoka K. A case of Fabry nephropathy with histological features of oligonephropathy. Eur J Pediatr. 2014 Aug; 173(8):1111-4. PMID: 23913314.
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  86. Hasegawa K, Chiba T, Hagiwara Y, Watase H, Tsugawa Y, Brown DF, Camargo CA. Quality of care for acute asthma in emergency departments in Japan: a multicenter observational study. J Allergy Clin Immunol Pract. 2013 Sep-Oct; 1(5):509-15.e1-3. PMID: 24565623.
    View in: PubMed
  87. Hasegawa K, Tsugawa Y, Brown DF, Camargo CA. Childhood asthma hospitalizations in the United States, 2000-2009. J Pediatr. 2013 Oct; 163(4):1127-33.e3. PMID: 23769497; PMCID: PMC3786053.
  88. Hasegawa K, Tsugawa Y, Brown DF, Mansbach JM, Camargo CA. Trends in bronchiolitis hospitalizations in the United States, 2000-2009. Pediatrics. 2013 Jul; 132(1):28-36. PMID: 23733801; PMCID: PMC3691534.
  89. Hasegawa K, Hiraide A, Brown DF. Prehospital airway management for out-of-hospital cardiac arrest--reply. JAMA. 2013 May 08; 309(18):1889-90. PMID: 23652515.
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  90. Hasegawa K, Hagiwara Y, Imamura T, Chiba T, Watase H, Brown CA, Brown DF. Increased incidence of hypotension in elderly patients who underwent emergency airway management: an analysis of a multi-centre prospective observational study. Int J Emerg Med. 2013; 6:12. PMID: 23618100; PMCID: PMC3640904.
  91. Hasegawa K, Tsugawa Y, Camargo CA, Hiraide A, Brown DF. Regional variability in survival outcomes of out-of-hospital cardiac arrest: the All-Japan Utstein Registry. Resuscitation. 2013 Aug; 84(8):1099-107. PMID: 23499636.
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  92. Hasegawa K, Hiraide A, Chang Y, Brown DF. Association of prehospital advanced airway management with neurologic outcome and survival in patients with out-of-hospital cardiac arrest. JAMA. 2013 Jan 16; 309(3):257-66. PMID: 23321764.
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  93. Hasegawa K, Obermeyer Z, Milne LW. Eczema herpeticum. J Emerg Med. 2012 Nov; 43(5):e341-2. PMID: 21852062.
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  94. Imamura T, Brown CA, Ofuchi H, Yamagami H, Branch J, Hagiwara Y, Brown DF, Hasegawa K. Emergency airway management in geriatric and younger patients: analysis of a multicenter prospective observational study. Am J Emerg Med. 2013 Jan; 31(1):190-6. PMID: 23083883.
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  95. Hasegawa K, Shigemitsu K, Hagiwara Y, Chiba T, Watase H, Brown CA, Brown DF. Association between repeated intubation attempts and adverse events in emergency departments: an analysis of a multicenter prospective observational study. Ann Emerg Med. 2012 Dec; 60(6):749-754.e2. PMID: 22542734.
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  96. Umezawa K, Branch J, Hasegawa K. Images in emergency medicine. Facial swelling. Pott's puffy tumor with subdural empyema. Ann Emerg Med. 2012 Mar; 59(3):234, 238. PMID: 22340802.
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  97. Hasegawa K, Hagiwara Y, Chiba T, Watase H, Walls RM, Brown DF, Brown CA. Emergency airway management in Japan: Interim analysis of a multi-center prospective observational study. Resuscitation. 2012 Apr; 83(4):428-33. PMID: 22155701.
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  98. Hasegawa K, Fix ML, Wendell L, Schwab K, Ay H, Smith EE, Greenberg SM, Rosand J, Goldstein JN, Brown DF. Ischemic-appearing electrocardiographic changes predict myocardial injury in patients with intracerebral hemorrhage. Am J Emerg Med. 2012 May; 30(4):545-52. PMID: 21450435; PMCID: PMC3684165.
  99. Hasegawa K, Schofer JM. Rupture of the pectoralis major: a case report and review. J Emerg Med. 2010 Feb; 38(2):196-200. PMID: 18818044.
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  100. Kasuske L, Schofer JM, Hasegawa K. Two marines with generalized seizure activity. J Emerg Nurs. 2009 Nov; 35(6):542-3. PMID: 19914481.
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  101. Hasegawa K, Schofer JM, Bramblett GT. Images in emergency medicine. Acute orbital compartment syndrome. Ann Emerg Med. 2008 Jun; 51(6):790, 797. PMID: 18489975.
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