Background. Despite the recent advances in advanced cardiac life support (ACLS), there has been no significant improvement in survival among patients who undergo cardiac arrest. To date, there are no local guidelines on the requirements or standards of in-hospital cardiac arrest teams in the Philippines. In addition, there are still no studies on the outcomes of cardiac arrests among adult patients in a tertiary hospital in the Philippines. Objectives. The objective of this study is to investigate patient-, event-, and hospital-related factors associated with survival among adult patients who underwent in-hospital cardiac arrest in the service wards and intensive care units of a tertiary hospital. Methods. This is a prospective cross-sectional study conducted over three months in 2018. Patient-, event- and hospital-related data were collected from each patient with a cardiac arrest event who was referred to the cardiac arrest teams based on the modified Utstein form of reporting cardiac arrests. Survival to discharge from cardiac arrest was the main outcome. Results. The study included 119 patients, 47.9% male, with a mean age of 50.1 years (SD 16.7). Survival rate was 6.7%. The mean response time did not differ between survival group (1.46 minutes) and mortality group (1.82 minutes) (p value = 0.26). The presence of a shockable initial rhythm (3.6% vs 3/8; p value = 0.01), shorter lag time to initiation of electrical therapy (6.0 vs 9.3 ± 5.6 min; p value = 0.02), shorter time to establishment of an airway (2.75 ± 1.6 vs. 6.98 ± 5.2 min; p value = 0.01), and shorter duration of resuscitation (7 ± 4.6 vs. 13.0 ± 7.9 min; p value = 0.01) were significantly associated with survival. The presence of underlying illnesses is associated with higher mortality. The most common hospital-related problems identified were the need to cover long distances, delay in the call, and the lack of elevators. Conclusion. The survival rate of patients who underwent cardiac arrest and resuscitation by a cardiac arrest team is low. The initial presenting rhythm, lag time to initiation of electrical therapy, time to establishment of airway, duration of resuscitation, as well as the underlying disease can significantly affect survival. Streamlining the resources of the hospital to address these matters can have an impact on survival.
Advanced Cardiac Life Support ; Heart Arrest

BACKGROUND AND OBJECTIVES

Acute kidney injury (AKI) is a common complication of critical illness that often leads to increased mortality and morbidity. Biomarkers detect AKI earlier, providing a window of opportunity for timely intervention. Of the recent biomarkers in literature, the cell cycle arrest biomarkers tissue inhibitor of metalloproteinases-2 (TIMP-2) and insulin-like growth factor binding protein-7 (IGFBP-7) were found to be superior in predicting AKI. Our study aimed to evaluate the diagnostic performance of urine TIMP-2/IGFBP-7 in its ability to predict AKI and major adverse kidney events within 30 days (MAKE30) among high-risk patients for AKI. MAKE30 is a composite outcome comprised of all-cause mortality, use of renal replacement therapy (RRT), or persistent renal dysfunction at hospital discharge truncated at 30 days.

METHODS

We conducted a prospective, cross-sectional study which included 135 adult, non-COVID ICU patients. Baseline urine TIMP-2/IGFBP-7 results were used to dichotomize the population into low risk (< 0.3 ng/mL) or high risk (≥ 0.3 ng/mL) for AKI. Participants were then observed for 30 days and monitored for MAKE30 outcomes. ROC curves were created to calculate the sensitivity, specificity, NPV, PPV, and the AUC of the 0.3 ng/mL cut-off to predict the AKI and MAKE30.

RESULTS

Urine TIMP-2/IGFBP-7 cutoff of 0.3 ng/mL predicted AKI with a sensitivity of 82.4%, specificity of 79.2%, PPV of 57.1%, NPV of 93% and AUC of 0.81. MAKE30 was detected with a sensitivity of 62.8%, specificity of 76.1%, PPV of 55.1%, NPV of 81.4% and AUC of 0.69. Elevated levels of urine TIMP-2/IGFBP-7 were found to be associated with AKI (p <0.01), MAKE30 (p <0.01) and all of its subcomponents. Survival or discharge after 30 days were found to be associated with lower urine TIMP-2/IGFBP-7 levels (p <0.01).

CONCLUSION

Urine TIMP-2/IGFBP-7, at its current cutoff at 0.3 ng/mL, can predict the likelihood of developing AKI and major adverse kidney events among high-risk patients for AKI. It can serve as a useful adjunct to existing methods, such as serum creatinine, in the early diagnosis and prognosis of acute kidney injury and expanding the therapeutic window to prevent disease progression and improve outcomes.

Acute Kidney Injury ; Biomarkers ; Urine ; Tissue Inhibitor Of Metalloproteinase-2 ; Insulin-like Growth Factor Binding Proteins