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Correlation of Intraoperative End-Tidal Carbon Dioxide Concentration on Postoperative Hospital Stay in Patients Undergoing Pylorus-Preserving Pancreaticoduodenectomy

 Ji-Hoon Park  ;  Hye-Mi Lee  ;  Chang Moo Kang  ;  Kyung Sub Kim  ;  Chul Ho Jang  ;  Ho Kyoung Hwang  ;  Jeong-Rim Lee 
 WORLD JOURNAL OF SURGERY, Vol.45(6) : 1860-1867, 2021-06 
Journal Title
Issue Date
Carbon Dioxide* ; Humans ; Length of Stay ; Pancreaticoduodenectomy* / adverse effects ; Postoperative Complications / epidemiology ; Pylorus / surgery
Background: Hypocapnia has been traditionally advocated during general anesthesia, even though it may induce deleterious physiological effects that result in unfavorable outcomes in patients. This study investigated the association between intraoperative end-tidal carbon dioxide (EtCO2) and length of hospital stay (LOS) in patients who underwent pylorus-preserving pancreaticoduodenectomy (PPPD).

Methods: The medical records of 759 patients from 2006 to 2015 were reviewed. The patients were divided into two groups based on the mean EtCO2 value during general anesthesia: the hypocapnia group (< 35 mmHg) and the normocapnia group (≥ 35 mmHg). The primary outcome was LOS between the groups. Secondary outcomes included the length of intensive care unit (ICU) stay, postoperative 30-day, 1-year, and 2-year mortality, and perioperative factors associated with LOS.

Results: A total of 727 patients were finally analyzed. The median LOS of the hypocapnia group was significantly longer than that of the normocapnia group (22 days vs. 18 days, respectively; p < 0.001). Postoperative mortality did not differ between the groups. Cox regression analysis revealed that hypocapnia was an independent risk factor for longer LOS (hazard ratio [HR], 1.61; 95% confidence interval [CI], 1.37-1.89; p < 0.001). Age and postoperative pancreatic fistula were also risk factors for a longer LOS.

Conclusions: It was concluded that low levels of intraoperative EtCO2 during general anesthesia were associated with an increased LOS for patients undergoing PPPD.
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1. College of Medicine (의과대학) > Dept. of Anesthesiology and Pain Medicine (마취통증의학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Surgery (외과학교실) > 1. Journal Papers
Yonsei Authors
Kang, Chang Moo(강창무) ORCID logo https://orcid.org/0000-0002-5382-4658
Lee, Jeong Rim(이정림) ORCID logo https://orcid.org/0000-0002-7425-0462
Lee, Hye Mi(이혜미) ORCID logo https://orcid.org/0000-0002-0432-1878
Chang, Chul Ho(장철호) ORCID logo https://orcid.org/0000-0001-5647-8298
Hwang, Ho Kyoung(황호경) ORCID logo https://orcid.org/0000-0003-4064-7776
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