Basal functional status predicts functional recovery in critically ill patients with multiple-organ failure

Long-term functional disabilities in intensive care unit survivors: A prospective cohort study

BACKGROUND

Functional disabilities are common in intensive care unit (ICU) survivors and may affect their ability to live independently. Few previous studies have investigated long-term functional outcomes with health status before ICU admission (pre-ICU health), and they are limited to specific patient groups.

OBJECTIVES

The objective of this study was to investigate the prevalence of functional disabilities and examine pre-ICU health variables as possible predictive factors of functional disabilities 12 months after ICU admission in a mixed population of ICU survivors.

METHODS

This prospective cohort study was conducted in six ICUs in Norway. Data on pre-ICU health were collected as soon as possible after ICU admission using patients, proxies, and patient electronic health records and at 12 months after ICU admission. Self-reported functional status was assessed using the Katz Index of independence in personal activities of daily living (P-ADL) and the Lawton instrumental activities of daily living scale (I-ADL).

RESULTS

A total of 220 of 343 (64%) ICU survivors with data on pre-ICU health completed the questionnaires at 12 months and reported the following functional disabilities at 12 months: 31 patients (14.4%) reported P-ADL dependencies (new in 16 and persisting in 15), and 80 patients (36.4%) reported I-ADL dependencies (new in 41 and persisting in 39). In a multivariate analysis, worse baseline P-ADL and I-ADL scores were associated with dependencies in P-ADLs (odds ratio [OR]: 1.87; 95% confidence interval [CI]: 1.14-3.06) and I-ADLs (OR: 1.52; 95% CI: 1.03-2.23), respectively, at 12 months. Patients who were employed were less likely to report I-ADL dependencies at 12 months (OR: 0.34; 95% CI: 0.12-0.95).

CONCLUSION

In a subsample of ICU survivors, patients reported functional disabilities 12 months after ICU admission, which was significantly associated with their pre-ICU functional status. Early screening of pre-ICU functional status may help identify patients at risk of long-term functional disabilities. ICU survivors with pre-ICU functional disabilities may find it difficult to improve their functional status.

Relationship of Age And Mobility Levels During Physical Rehabilitation With Clinical Outcomes in Critical Illness

Objective

To determine whether age, mobility level, and change in mobility level across the first 3 physical rehabilitation sessions associate with clinical outcomes of patients who are critically ill.

Design

Retrospective, observational cohort study.

Setting

Medical Intensive Care Unit (MICU).

Participants

Hospitalized adults (n = 132) who received 3 or more, consecutive rehabilitation sessions in the MICU.

Interventions

Not applicable.

Measurements and Main Results

Sample included 132 patients with 60 (45%) classified as younger (18-59 years) and 72 (55%) as older (60+ years). The most common diagnosis was sepsis/septicemia (32.6%). Older relative to younger patients had a significantly slower rate of improvement in ICU Mobility Scale (IMS) scores across rehabilitation sessions (mean slope coefficient 0.3 vs 0.6 points, P<.001), were less likely to be discharged to home (30.6% vs 55.0%, P=.005), and were more likely to die within 12 months (41.7% vs 25.0%, P=.046). Covariate-adjusted models indicated greater early improvement in IMS scores were associated with discharge home (P=.005). Longer time to first rehabilitation session, lower initial IMS scores, and slower improvement in IMS scores were associated with increased ICU days (all P<.03).

Conclusion

Older age and not achieving the mobility milestone of sitting at edge of bed or limited progression of mobility across sessions is associated with poor patient outcomes. Our findings suggest that age and mobility level contribute to outcome prognostication, and can aide in clinical phenotyping and rehabilitative service allocation.

Worse pre-admission quality of life is a strong predictor of mortality in critically ill patients

Objectives

In this study, we aimed to investigate whether quality of life (QoL) before intensive care unit (ICU) admission could predict ICU mortality in critically ill patients.

Patients and methods

Between January 2019 and April 2019, a total of 105 ICU patients (54 males, 51 females; mean age: 58 years; range, 18 to 91 years) from two ICUs of a tertiary care hospital were included in this cross-sectional, prospective study. Pre-admission QoL was measured by the Short Form (SF)-12- Physical Component Scores (PCS) and Mental Component Scores (MCS) and EuroQoL five-dimension, five-level scale (EQ-5D-5L) within 24 h of ICU admission and mortality rates were estimated.

Results

The overall mortality rate was 28.5%. Pre-admission QoL was worse in the non-survivors independent from age, sex, socioeconomic and education status, and comorbidities. During the hospitalization, the rate of sepsis and ventilator/hospital-acquired pneumonia were similar among the two groups (p>0.05). Logistic regression analysis adjusted for sex, age, education status, and Acute Physiology and Chronic Health Evaluation II (APACHE II) scores showed that pre-admission functional status as assessed by the SF-12 MCS (odds ratio [OR]: 14,2; 95% confidence interval [CI]: 2.5-79.0), SF-12 PCS (OR: 10.6; 95% CI: 1.8-62.7), and EQ-5D-5L (OR: 8.0; 95% CI: 1.5-44.5) were found to be independently associated with mortality.

Conclusion

Worse pre-admission QoL is a strong predictor of mortality in critically ill patients. The SF-12 and EQ-5D-5L scores are both valuable tools for this assessment. Not only the physical status, but also the mental status before ICU admission should be evaluated in terms of QoL to better utilize ICU resources.

Functional outcome after critical illness in older patients: a population-based study

PURPOSE

To determine the prevalence of disability among ICU survivors one year after admission, and which factors influence functional outcome.

METHODS

We examined consecutive patients enrolled in the population-based Mayo Clinic Olmsted Study of Aging and then admitted to medical or surgical adult ICUs at Mayo Clinic, Rochester between January 1, 2006, and December 31, 2014 to determine one-year functional outcomes.

RESULTS

831cases were included. Mean age was 84 years (IQR 79-88). 569 (68.5%) patients were alive one year after ICU admission. Of them, 546 patients had functional assessment at one year and 367 (67.2%) had good functional outcome. On multivariable analysis, poor one-year functional outcome (death or disability) was more common among women, older patients, and patients with baseline cognitive impairment (mild cognitive impairment or dementia), higher Carlson scores, and longer ICU stay (all P <.01). After excluding deceased patients, these associations remained unchanged. In addition, 120 (32.3%) of 372 patients who had post-ICU cognitive evaluation experienced cognitive decline after the ICU admission.

CONCLUSIONS

On a population-based cohort of older, predominantly elderly patients, approximately two-thirds of survivors maintained or regained good functional status 1 year after ICU hospitalization. However, older age, female sex, greater comorbidities, abnormal baseline cognition, and longer ICU stay were associated with poor functional recovery and cognitive decline was common.

Cardiogenic shock with resultant multiple organ dysfunction syndrome

The prognosis for a patient with multiple organ dysfunction syndrome (MODS)-also known as organ dysfunction or organ failure-is grave, and mortality can be high when three or more organ systems fail. This article reviews ongoing abnormalities of organ-specific parameters and a bedside clinical scoring assessment tool to identify the mortality of MODS, focusing on the management of MODS resulting from cardiogenic shock in ICU patients who require support of failing organs to survive.

Decreased preoperative functional status is associated with increased mortality following coronary artery bypass graft surgery

Objectives

Functional status prior to coronary artery bypass graft surgery may be a risk factor for post-operative adverse events. We sought to examine the association between functional status in the 3 months prior to coronary artery bypass graft surgery and subsequent 180 day mortality.

Design, setting, and participants

We performed a single center retrospective cohort study in 718 adults who received coronary artery bypass graft surgery from 2002 to 2014.

Exposures

The exposure of interest was functional status determined within the 3 months preceding coronary artery bypass graft surgery. Functional status was measured and rated by a licensed physical therapist based on qualitative categories adapted from the Functional Independence Measure.

Main outcomes and measures

The main outcome was 180-day all-cause mortality. A categorical risk prediction score was derived based on a logistic regression model of the function grades for each assessment.

Results

In a logistic regression model adjusted for age, gender, New York Heart Association Class III/IV, chronic lung disease, hypertension, diabetes, cerebrovascular disease, and the Society of Thoracic Surgeons score, the lowest quartile of functional status was associated with an increased odds of 180-day mortality compared to patients with highest quartile of functional status [OR = 4.45 (95%CI 1.35, 14.69; P = 0.014)].

Conclusions

Lower functional status prior to coronary artery bypass graft surgery is associated with increased 180-day all-cause mortality.

Risk model for deaths and renal replacement therapy dependence in patients with acute kidney injury after cardiac surgery

OBJECTIVES

Acute kidney injury (AKI) is a serious complication after cardiac surgery and is associated with increased in-hospital deaths. Renal replacement therapy (RRT) is becoming a routine strategy for severe AKI. Our goal was to evaluate the risk factors for death and RRT dependence in patients with AKI after cardiac surgery.

METHODS

We included 190 eligible adult patients who had AKI following cardiac surgery and who required RRT at our centre from November 2010 to March 2015. We collected preoperative, intraoperative, postoperative and RRT data for all patients.

RESULTS

In this cohort, 87 patients had successful RRT in the hospital, whereas 103 patients had RRT that failed (70 deaths and 33 cases of RRT dependence). The multivariable logistic analysis identified old age [odds ratio (OR): 1.042, 95% confidence interval (CI): 1.012-1.074; P = 0.011], serum uric acid (OR: 1.015, 95% CI: 1.003-1.031; P = 0.024), intraoperative concentrated red blood cell transfusions (OR: 1.144, 95% CI: 1.006-1.312; P = 0.041), postoperative low cardiac output syndrome (OR: 3.107, 95% CI: 1.179-8.190; P = 0.022) and multiple organ failure (OR: 5.786, 95% CI: 2.115-15.832; P = 0.001) as factors associated with a higher risk for RRT failure. The prediction model (-4.3 + 0.002 × preuric acid + 0.10 × concentrated red blood cells + 0.04 × age + 1.12 × [low cardiac output syndrome = 1] + 1.67 × [multiple organ failure = 1]) based on the multivariate analysis had statistically significant different incriminatory power with an area under the curve of 0.786.

CONCLUSIONS

The prediction model may serve as a simple, accurate tool for predicting in-hospital RRT failure for patients with AKI following cardiac surgery.

Clinical residual symptomatology and associated factors in multiple organ failure survivors: A long-term mortgage

PURPOSE

To evaluate which residual clinical symptoms multi-organ failure (MOF) patients may exhibit post discharge from Intensive Care Units (ICU) and to identify the associated factors that cause such symptoms.

MATERIAL AND METHODS

A total of 545 adult patients admitted to a medical & surgical ICU in Spain diagnosed with MOF on admission were included in the study. Follow up in the form of a telephone survey regarding the patients clinical symptoms were conducted at 6 and 12 months after discharge from ICU.

RESULTS

A total of 266 patients were followed up at both 6 and 12 months post ICU discharge; 62.2% were male; age 60±18 years; 67.8% medical patients. The most common symptoms to appear following hospital discharge included: asthenia (173; 76%), sleep disturbances (112; 50%) and depression (109; 48%).

CONCLUSIONS

The study revealed frequent residual clinical symptoms persisting for almost a year post ICU discharge, most notably arthromyalgia and asthenia. Depression symptoms during the first 6 months post-hospital discharge were also common among multiple organ failure survivors. The presence of symptomatology over time was found to be related to a poor functional situation at 6 and12 months post ICU discharge, length of hospital stay and severity of illness score on ICU admission.

Functional Status in ICU Survivors and Out of Hospital Outcomes: A Cohort Study

OBJECTIVES

Functional status at hospital discharge may be a risk factor for adverse events among survivors of critical illness. We sought to examine the association between functional status at hospital discharge in survivors of critical care and risk of 90-day all-cause mortality after hospital discharge.

DESIGN

Single-center retrospective cohort study.

SETTING

Academic Medical Center.

PATIENTS

Ten thousand three hundred forty-three adults who received critical care from 1997 to 2011 and survived hospitalization.

INTERVENTIONS

None.

MEASUREMENTS AND MAIN RESULTS

The exposure of interest was functional status determined at hospital discharge by a licensed physical therapist and rated based on qualitative categories adapted from the Functional Independence Measure. The main outcome was 90-day post hospital discharge all-cause mortality. A categorical risk-prediction score was derived and validated based on a logistic regression model of the function grades for each assessment. In an adjusted logistic regression model, the lowest quartile of functional status at hospital discharge was associated with an increased odds of 90-day postdischarge mortality compared with patients with independent functional status (odds ratio, 7.63 [95% CI, 3.83-15.22; p < 0.001]). In patients who had at least 7 days of physical therapy treatment prior to hospital discharge (n = 2,293), the adjusted odds of 90-day postdischarge mortality in patients with marked improvement in functional status at discharge was 64% less than patients with no change in functional status (odds ratio, 0.36 [95% CI, 0.24-0.53]; p < 0.001).

CONCLUSIONS

Lower functional status at hospital discharge in survivors of critical illness is associated with increased postdischarge mortality. Furthermore, patients whose functional status improves before discharge have decreased odds of postdischarge mortality.