Journal of Anesthesia

, Volume 27, Issue 6, pp 838–843 | Cite as

Risk factors for postoperative mortality and morbidities in emergency surgeries

  • Tomonori Matsuyama
  • Hiroshi IranamiEmail author
  • Keisuke Fujii
  • Mariko Inoue
  • Reiko Nakagawa
  • Kohei Kawashima
Original Article



Emergency surgery itself induces high risk for postoperative mortality and morbidities; however, it remains unknown which concomitant pathological conditions of emergency surgeries are causative factors of deteriorating outcomes. This study examined the causal factors of postoperative mortality and morbidity in cases of emergency surgery.


Patients undergoing emergency surgery from January to December 2007 were enrolled in this retrospective cohort study. Causal relationships were analyzed by stepwise multivariate logistic regression analysis between possible independent factors (sex, age, kind of surgical department, timing of surgery, duration of surgery, blood transfusion, deteriorated consciousness level, shock state, abnormal coagulate state, and history of hypertension, diabetes, ischemic heart disease, chronic obstructive pulmonary disease, renal failure, and anemia) and postoperative mortality or morbidities (failure of removal of tracheal tube after operation, tracheotomy, cerebral infarction, massive hemorrhage, severe hypotension, severe hypoxemia, and severe arrhythmia during or after surgery).


Shock, deteriorated consciousness level, chronic obstructive lung disease, and ischemic heart disease were significant risk factors for mortality (OR 14.2, 7.9, 6.4, and 3.8, respectively), and deteriorated consciousness level, blood transfusion, shock, chronic obstructive lung disease, diabetes, cardiovascular surgery, and operation longer than 2 h were significant risk factors for morbidity (OR 19.1, 3.3, 3.0, 2.5, 2.4, 2.4, and 1.8, respectively).


State of shock, deteriorated consciousness level, chronic obstructive lung disease, ischemic heart disease, hemorrhage requiring blood transfusion, age over 80 years, cardiovascular surgery, surgeries at night, and surgeries of duration more than 2 h cause patients to be strongly susceptible to postoperative mortality or morbidity in emergency surgeries.


Emergency Morbidity Mortality Anesthesia 


Conflict of interest



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Copyright information

© Japanese Society of Anesthesiologists 2013

Authors and Affiliations

  • Tomonori Matsuyama
    • 1
  • Hiroshi Iranami
    • 3
    • 4
    Email author
  • Keisuke Fujii
    • 2
  • Mariko Inoue
    • 4
  • Reiko Nakagawa
    • 2
  • Kohei Kawashima
    • 5
  1. 1.Department of AnesthesiaKyoto University HospitalKyotoJapan
  2. 2.Department of AnesthesiologyJapanese Red Cross Society Wakayama Medical CenterWakayama CityJapan
  3. 3.Department of AnesthesiologyWakayama Medical UniversityWakayama CityJapan
  4. 4.Department of AnesthesiologyWakayama Rosai HospitalWakayama CityJapan
  5. 5.Department of AnesthesiologyNational Hospital Organization Minami Wakayama Medical CenterTanabe CityJapan

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