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. 2013 Jun;41(6):1450-7.
doi: 10.1097/CCM.0b013e31827caa89.

Utilization patterns and outcomes associated with central venous catheter in septic shock: a population-based study

Allan J Walkey  1 , Renda Soylemez Wiener, Peter K Lindenauer
Affiliations

Utilization patterns and outcomes associated with central venous catheter in septic shock: a population-based study

Allan J Walkey et al. Crit Care Med. 2013 Jun.

Abstract

Objectives: In 2001, a randomized trial showed decreased mortality with early, goal-directed therapy in septic shock, a strategy later recommended by the Surviving Sepsis Campaign. Placement of a central venous catheter is necessary to administer goal-directed therapy. We sought to evaluate nationwide trends in: 1) central venous catheter utilization and 2) the association between early central venous catheter insertion and mortality in patients with septic shock.

Design: We retrospectively analyzed the proportion of septic shock cases receiving an early (day of admission) central venous catheter and the odds of hospital mortality associated with receiving early central venous catheter from years 1998 to 2001 compared with 2002 to 2009.

Setting: Non-federal acute care hospitalizations from the Nationwide Inpatient Sample, 1998-2009.

Patients: A total of 203,481 (population estimate: 999,545) patients admitted through an emergency department with principal diagnosis of septicemia and secondary diagnosis of shock.

Interventions: None.

Measurements and main results: From 1998 to 2009, population-adjusted rates of septic shock increased from 12.6 cases per 100,000 U.S. adults to 78 cases per 100,000. During this time, age-adjusted hospital mortality associated with septic shock declined from 40.4% to 31.4%. Early central venous catheter insertion increased from 5.7% (95% confidence interval 5.1% to 6.3%) to 19.2% (95% confidence interval 18.7% to 19.5%) cases with septic shock, with an increased rate of early central venous catheter placement identified after 2007. The rate of decline in age-adjusted hospital mortality was significantly greater for patients who received an early central venous catheter (-4.2% per year, 95% confidence interval -3.2, -4.2%) as compared with no central venous catheter (-2.9% per year, 95% confidence interval -2.3, -3.5%; p = 0.016). Hospital mortality associated with early central venous catheter insertion significantly decreased from a multivariable-adjusted odds ratio of 1.29 (95% confidence interval 1.14-1.45) prior to 2001 to an adjusted odds ratio of 0.87 (95% confidence interval 0.84-0.90) after 2001.

Conclusions: Placement of a central venous catheter early in septic shock has increased three-fold since 1998. The mortality associated with early central venous catheter insertion decreased after publication of evidence-based instructions for central venous catheter use.

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Figures

Figure 1
Figure 1
Trends in septic shock incidence and septic shock hospital mortality, 1998-2009.
Figure 2
Figure 2
Trends in utilization of central venous catheter (CVC), pulmonary artery catheter, and peripheral arterial catheter, 1998-2009.
Figure 3
Figure 3
Comparison of age-adjusted hospital mortality trends in patients with septic shock who received early central venous catheter compared with no central venous catheter.
Figure 4
Figure 4
4A: Multivariable-adjusted odds ratios for hospital mortality associated with early central venous catheter utilization (vs. no central venous catheter) in septic shock, 1998-2009. 4B: Multivariable-adjusted odds ratios for hospital mortality associated with early peripheral arterial catheter utilization (vs. no arterial catheter) in septic shock, 1998-2009. 4C: Multivariable-adjusted odds ratios for hospital mortality associated with pulmonary artery catheter utilization (vs. no pulmonary artery catheter) in septic shock, 1998-2009.
Figure 4
Figure 4
4A: Multivariable-adjusted odds ratios for hospital mortality associated with early central venous catheter utilization (vs. no central venous catheter) in septic shock, 1998-2009. 4B: Multivariable-adjusted odds ratios for hospital mortality associated with early peripheral arterial catheter utilization (vs. no arterial catheter) in septic shock, 1998-2009. 4C: Multivariable-adjusted odds ratios for hospital mortality associated with pulmonary artery catheter utilization (vs. no pulmonary artery catheter) in septic shock, 1998-2009.
Figure 4
Figure 4
4A: Multivariable-adjusted odds ratios for hospital mortality associated with early central venous catheter utilization (vs. no central venous catheter) in septic shock, 1998-2009. 4B: Multivariable-adjusted odds ratios for hospital mortality associated with early peripheral arterial catheter utilization (vs. no arterial catheter) in septic shock, 1998-2009. 4C: Multivariable-adjusted odds ratios for hospital mortality associated with pulmonary artery catheter utilization (vs. no pulmonary artery catheter) in septic shock, 1998-2009.
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