Chronic critical illness

Advance directives lessen the decisional burden of surrogate decision-making for the chronically critically ill

AIMS AND OBJECTIVES

To identify the relationships between advance directive status, demographic characteristics and decisional burden (role stress and depressive symptoms) of surrogate decision-makers (SDMs) of patients with chronic critical illness.

BACKGROUND

Although the prevalence of advance directives among Americans has increased, SDMs are ultimately responsible for complex medical decisions of the chronically critically ill patient. Decisional burden has lasting psychological effects on SDMs. There is insufficient evidence on the influence of advance directives on the decisional burden of surrogate decision-makers of patients with chronic critical illness.

DESIGN

The study was a secondary data analysis of cross-sectional data. Data were obtained from 489 surrogate decision-makers of chronically critically ill patients at two academic medical centres in Northeast Ohio, United States, between September 2005-May 2008.

METHODS

Data were collected using demographic forms and questionnaires. A single-item measure of role stress and the Center for Epidemiological Studies Depression (CESD) scale were used to capture the SDM's decisional burden. Descriptive statistics, t-tests, chi-square and path analyses were performed.

RESULTS

Surrogate decision-makers who were nonwhite, with low socioeconomic status and low education level were less likely to have advance directive documentation for their chronically critically ill patient. The presence of an advance directive mitigates the decisional burden by directly reducing the SDM's role stress and indirectly lessening the severity of depressive symptoms.

CONCLUSIONS

Most SDMs of chronically critically ill patients will not have the benefit of knowing the patient's preferences for life-sustaining therapies and consequently be at risk of increased decisional burden.

RELEVANCE TO CLINICAL PRACTICE

Study results are clinically useful for patient education on the influence of advance directives. Patients may be informed that SDMs without advance directives are at risk of increased decisional burden and will require decisional support to facilitate patient-centred decision-making.

Persistent inflammation, immunosuppression, and catabolism syndrome after severe blunt trauma

BACKGROUND

We recently proffered that a new syndrome persistent inflammation, immunosuppression, and catabolism syndrome (PICS) has replaced late multiple-organ failure as a predominant phenotype of chronic critical illness. Our goal was to validate this by determining whether severely injured trauma patients with complicated outcomes have evidence of PICS at the genomic level.

METHODS

We performed a secondary analysis of the Inflammation and Host Response to Injury database of adults with severe blunt trauma. Patients were classified into complicated, intermediate, and uncomplicated clinical trajectories. Existing genomic microarray data were compared between cohorts using Ingenuity Pathways Analysis. Epidemiologic data and outcomes were also analyzed between cohorts on admission, Day 7, and Day 14.

RESULTS

Complicated patients were older, were sicker, and required increased ventilator days compared with the intermediate/uncomplicated patients. They also had persistent leukocytosis as well as low lymphocyte and albumin levels compared with uncomplicated patients. Total white blood cell leukocyte analysis in complicated patients showed that overall genome-wide expression patterns and those patterns on Days 7 and 14 were more aberrant from control subjects than were patterns from uncomplicated patients. Complicated patients also had significant down-regulation of adaptive immunity and up-regulation of inflammatory genes on Days 7 and 14 (vs. magnitude in fold change compared with control and in magnitude compared with uncomplicated patients). On Day 7, complicated patients had significant changes in functional pathways involved in the suppression of myeloid cell differentiation, increased inflammation, decreased chemotaxis, and defective innate immunity compared with uncomplicated patients and controls. Subset analysis of monocyte, neutrophil, and T-cells supported these findings.

CONCLUSION

Genomic analysis of patients with complicated clinical outcomes exhibit persistent genomic expression changes consistent with defects in the adaptive immune response and increased inflammation. Clinical data showed persistent inflammation, immunosuppression, and protein depletion. Overall, the data support the hypothesis that patients with complicated clinical outcomes are exhibiting PICS.

LEVEL OF EVIDENCE

Epidemiologic study, level III.

Nurse and patient interaction behaviors' effects on nursing care quality for mechanically ventilated older adults in the ICU

The study purposes were to (a) describe interaction behaviors and factors that may effect communication and (b) explore associations between interaction behaviors and nursing care quality indicators among 38 mechanically ventilated patients (age ≥60 years) and their intensive care unit nurses (n = 24). Behaviors were measured by rating videorecorded observations from the Study of Patient-Nurse Effectiveness with Communication Strategies (SPEACS). Characteristics and quality indicators were obtained from the SPEACS dataset and medical chart abstraction. All positive behaviors occurred at least once. Significant (p < 0.05) associations were observed between (a) positive nurse and positive patient behaviors, (b) patient unaided augmentative and alternative communication (AAC) strategies and positive nurse behaviors, (c) individual patient unaided AAC strategies and individual nurse positive behaviors, (d) positive nurse behaviors and pain management, and (e) positive patient behaviors and sedation level. Findings provide evidence that nurse and patient behaviors effect communication and may be associated with nursing care quality.

The feasibility of measuring frailty to predict disability and mortality in older medical intensive care unit survivors

PURPOSE

To determine whether frailty can be measured within 4 days prior to hospital discharge in older intensive care unit (ICU) survivors of respiratory failure and whether it is associated with post-discharge disability and mortality.

MATERIALS AND METHODS

We performed a single-center prospective cohort study of 22 medical ICU survivors age 65 years or older who had received noninvasive or invasive mechanical ventilation for at least 24 hours. Frailty was defined as a score of ≥3 using Fried's 5-point scale. We measured disability with the Katz Activities of Daily Living. We estimated unadjusted associations between Fried's frailty score and incident disability at 1-month and 6-month mortality using Cox proportional hazard models.

RESULTS

The mean (SD) age was 77 (9) years, mean Acute Physiology and Chronic Health Evaluation II score was 27 (9.7), mean frailty score was 3.4 (1.3), and 18 (82%) were frail. Nine subjects (41%) died within 6 months, and all were frail. Each 1-point increase in frailty score was associated with a 90% increased rate of incident disability at 1-month (rate ratio: 1.9, 95% CI 0.7-4.9) and a threefold increase in 6-month mortality (rate ratio: 3.0, 95% CI 1.4-6.3).

CONCLUSIONS

Frailty can be measured in older ICU survivors near hospital discharge and is associated with 6-month mortality in unadjusted analysis. Larger studies to determine if frailty independently predicts outcomes are warranted.

The standard of care and conflicts at the end of life in critical care: lessons from medical-legal crossroads and the role of a quasi-judicial tribunal in decision-making

PURPOSE

The goals of this qualitative study were to review the last 7 years of end of life legal decisions within the critical care field to explore how medical benefit is defined and by whom and the role of the standard of care (SoC) in conflict resolution.

METHODS

A public online, non-profit database of the Federation of Law Societies of Canada was searched for relevant Consent and Capacity Board decisions from 2003 to 2012. In total, 1486 cases were collected, and purposive sampling identified a total of 29 decisions regarding use of life-sustaining treatments at end of life. Using modified grounded theory, decisions were read and analyzed from a central SoC concept to understand definitions of benefit, rationales for case adjudication, and repercussions of legal recourse in conflict resolution.

RESULTS

Medical benefit was clearly defined, and its role in determining SoC, transparent. Perceptions of variability in SoC were enhanced by physicians in intractable conflicts seeking legal validation by framing SoC issues as "best interest" determinations. The results reveal some key problems in recourse to the Consent and Capacity Board for clinicians, patients and substitute decision makers in such conflict situations.

CONCLUSIONS

This study can help improve decision-making by debunking myth of variability in determinations of medical benefit and the standards of care at end of life and reveal the pitfalls of legal recourse in resolving intractable conflicts.

Finding your way through EOL challenges in the ICU using Adaptive Leadership behaviours: A qualitative descriptive case study

OBJECTIVE

Using the Adaptive Leadership framework, we describe behaviours that providers used while interacting with family members facing the challenges of recognising that their loved one was dying in the ICU.

RESEARCH METHODOLOGY

In this prospective pilot case study, we selected one ICU patient with end-stage illness who lacked decision-making capacity. Participants included four family members, one nurse and two physicians. The principle investigator observed and recorded three family conferences and conducted one in-depth interview with the family. Three members of the research team independently coded the transcripts using a priori codes to describe the Adaptive Leadership behaviours that providers used to facilitate the family's adaptive work, met to compare and discuss the codes and resolved all discrepancies.

FINDINGS

We identified behaviours used by nurses and physicians that facilitated the family's ability to adapt to the impending death of a loved one. Examples of these behaviours include defining the adaptive challenges for families and foreshadowing a poor prognosis.

CONCLUSIONS

Nurse and physician Adaptive Leadership behaviours can facilitate the transition from curative to palliative care by helping family members do the adaptive work of letting go. Further research is warranted to create knowledge for providers to help family members adapt.

Considerations in starting a patient with advanced frailty on dialysis: complex biology meets challenging ethics

Nephrologists have focused on the uremic syndrome as an indication for dialysis. The elderly frail renal patient approaching ESRD represents a complex biologic system that is already failing. This patient phenotype exhibits progressive geriatric disabilities and dependence interspersed with shrinking periods of stability regardless of whether dialysis is started. Consequently, the frail renal patient faces challenging treatment choices underpinned by ethical tensions. Identifying the advanced frail renal patient and optimizing the shared decision-making process will enable him or her to make well informed choices based on an understanding of his or her overall condition and personal values and preferences. This approach will also permit nephrologists to fulfill their ethical obligations to respect patient autonomy, promote patient benefit, and minimize patient harm.

The evolving model of pediatric critical care delivery in North America

The past 50 years have witnessed the emergence and evolution of the modern pediatric ICU and the specialty of pediatric critical care medicine. ICUs have become key in the delivery of health care services. The patient population within pediatric ICUs is diverse. An assortment of providers, including intensivists, trainees, physician assistants, nurse practitioners, and hospitalists, perform a variety of roles. The evolution of critical care medicine also has seen the rise of critical care nursing and other critical care staff collaborating in multidisciplinary teams. Delivery of optimal critical care requires standardized, reliable, and evidence-based processes, such as bundles, checklists, and formalized communication processes.

Prediction of chronic critical illness in a general intensive care unit

OBJECTIVE

To assess the incidence, costs, and mortality associated with chronic critical illness (CCI), and to identify clinical predictors of CCI in a general intensive care unit.

METHODS

This was a prospective observational cohort study. All patients receiving supportive treatment for over 20 days were considered chronically critically ill and eligible for the study. After applying the exclusion criteria, 453 patients were analyzed.

RESULTS

There was an 11% incidence of CCI. Total length of hospital stay, costs, and mortality were significantly higher among patients with CCI. Mechanical ventilation, sepsis, Glasgow score <15, inadequate calorie intake, and higher body mass index were independent predictors for CCI in the multivariate logistic regression model.

CONCLUSIONS

CCI affects a distinctive population in intensive care units with higher mortality, costs, and prolonged hospitalization. Factors identifiable at the time of admission or during the first week in the intensive care unit can be used to predict CCI.

Physical and mental health in patients and spouses after intensive care of severe sepsis: a dyadic perspective on long-term sequelae testing the Actor-Partner Interdependence Model

OBJECTIVE

To examine the physical and mental long-term consequences of intensive care treatment for severe sepsis in patients and their spouses under consideration of a dyadic perspective using the Actor-Partner Interdependence Model.

DESIGN

Prospective study.

SETTING

Patients and spouses who had requested advice from the German Sepsis Aid's National Helpline were invited to participate.

SUBJECTS

We included 55 patients who survived severe sepsis and their spouses an average of 55 months after ICU discharge.

MEASUREMENTS AND MAIN RESULTS

The Hospital Anxiety and Depression Scale, the Short Form-12 Health Survey, the Posttraumatic Stress Scale-10, and the Giessen Subjective Complaints List-24 were used. The Actor-Partner Interdependence Model was tested using multilevel modeling with the actor effect representing the impact of a person's posttraumatic stress symptoms on his or her own mental health-related quality of life and the partner effect characterized by the impact of a person's posttraumatic stress symptoms on his or her partner's mental health-related quality of life. A significant proportion of patients and spouses (26%-42%) showed clinically relevant scores of anxiety and depression; approximately two thirds of both, patients and spouses, reported posttraumatic stress symptoms defined as clinically relevant. Compared with normative samples, patients reported greater anxiety, poorer mental and physical health-related quality of life, and greater exhaustion; spouses had an impaired mental health-related quality of life and increased anxiety. Testing the Actor-Partner Interdependence Model revealed that posttraumatic stress symptoms were related to patients' (β = -0.71, 95% confidence interval -0.88 to -0.54) and spouses' (β = -0.62, 95% confidence interval -0.79 to -0.46) own mental health-related quality of life. Posttraumatic stress symptoms further influenced the mental health-related quality of life of the respective other (β = -0.18, 95% confidence interval -0.35 to -0.003 for patients; β = -0.15, 95% confidence interval -0.32 to 0.02 for spouses).

CONCLUSIONS

Interventions to treat posttraumatic stress symptoms after critical illness to improve mental health-related quality of life should not only include patients, but also consider spouses.

Effectiveness of long-term acute care hospitalization in elderly patients with chronic critical illness

BACKGROUND

For patients recovering from severe acute illness, admission to a long-term acute care hospital (LTAC) is an increasingly common alternative to continued management in an intensive care unit (ICU).

OBJECTIVE

To examine the effectiveness of LTAC transfer in patients with chronic critical illness.

RESEARCH DESIGN

Retrospective cohort study in United States hospitals from 2002 to 2006.

SUBJECTS

Medicare beneficiaries with chronic critical illness, defined as mechanical ventilation and at least 14 days of intensive care.

MEASURES

Survival, costs, and hospital readmissions. We used multivariate analyses and instrumental variables to account for differences in patient characteristics, the timing of LTAC transfer, and selection bias.

RESULTS

A total of 234,799 patients met our definition of chronic critical illness. Of these, 48,416 (20.6%) were transferred to an LTAC. In the instrumental variable analysis, patients transferred to an LTAC experienced similar survival compared with patients who remained in an ICU [adjusted hazard ratio=0.99; 95% confidence interval (CI), 0.96 to 1.01; P=0.27). Total hospital-related costs in the 180 days after admission were lower among patients transferred to LTACs (adjusted cost difference=-$13,422; 95% CI, -26,662 to -223, P=0.046). This difference was attributable to a reduction in skilled nursing facility admissions (adjusted admission rate difference=-0.591; 95% CI, -0.728 to -0.454; P<0.001). Total Medicare payments were higher (adjusted cost difference=$15,592; 95% CI, 6343 to 24,842; P=0.001).

CONCLUSIONS

Patients with chronic critical illness transferred to LTACs experience similar survival compared with patients who remain in ICUs, incur fewer health care costs driven by a reduction in postacute care utilization, however, invoke higher overall Medicare payments.

The impact of dialysis-requiring acute kidney injury on long-term prognosis of patients requiring prolonged mechanical ventilation: nationwide population-based study

Background

Prolonged mechanical ventilation (PMV) is increasingly common worldwide, consuming enormous healthcare resources. Factors that modify PMV outcome are still obscure.

Methods

We selected patients without preceding mechanical ventilation within the one past year and who developed PMV during index admission in Taiwan's National Health Insurance (NHI) system during 1998–2007 for comparison of mortality and resource use. They were divided into three groups: (1) patients with end-stage renal diseases (ESRD) before the index admission for PMV onset; (2) patients with dialysis-requiring acute kidney injury (AKI-dialysis) during the hospitalization course; and (3) patients without AKI or with non dialysis-requiring AKI during the hospitalization course (non-AKI). We used a random-effects logistic regression model to identify factors associated with mortality.

Results

Compared with the other two groups, patients with AKI-dialysis had significantly longer mechanical ventilation, more frequent use of vasopressors, longer intensive care unit/hospital stay and higher inpatient expenditures during the index admission. Relative to non-AKI patients, patients with AKI-dialysis had an elevated mortality hazard; the adjusted relative risk ratios were 1.51 (95% confidence interval [CI]:1.46–1.56), 1.27 (95% CI: 1.23–1.32), and 1.10 (95% CI: 1.08–1.12) for mortality rates at discharge, 3 months, and 4 years after PMV, respectively. Patients with AKI-dialysis also consumed significantly higher total in-patient expenditure than the other two patient groups (p<0.001).

Conclusions

Among patients that need PMV care during an admission, the presence of de novo AKI requiring dialysis significantly increased short and long term mortality, and demand for health care resources.

"If I had only known"--on choice and uncertainty in the ICU

After receiving a ventricular assist device, a patient experiences months of advances and setbacks in the ICU. She's one of a new subcategory of ICU patients: the chronically critically ill. Their stories reveal shortcomings of common perspectives on medical decision making.

Prognostic factors of patients requiring prolonged mechanical ventilation in a medical intensive care unit of Korea

Background

We evaluated the clinical outcomes and prognostic factors of patients requiring prolonged mechanical ventilation (PMV), defined as ventilator care for ≥21 days, who were admitted to the medical intensive care unit (ICU) of a university hospital in Korea.

Methods

During the study period, a total of 2,644 patients were admitted to the medical ICU, and 136 patients (5.1%) were enrolled between 2005 and 2010.

Results

The mean age of the patients was 61.3±14.5 years, and 94 (69.1%) were male. The ICU and six-month cumulative mortality rates were 45.6 and 58.8%, respectively. There were 96 patients with tracheostomy placement after admission and their mean period from admission to the day of tracheostomy was 21.3±8.4 days. Sixty-three patients (46.3%) were successfully weaned from ventilator care. Of the ICU survivors (n=74), 34 patients (45.9%) were transferred to other hospitals (not university hospitals). Two variables (thrombocytopenia [hazard ratio (HR), 1.964; 95% confidence interval (CI), 1.225~3.148; p=0.005] and the requirement for vasopressors [HR, 1.822; 95% CI, 1.111~2.986; p=0.017] on day 21) were found to be independent factors of survival on based on the Cox proportional hazard model.

Conclusion

We found that patients requiring PMV had high six-month cumulative mortality rates, and that two clinical variables (measured on day 21), thrombocytopenia and requirement for vasopressors, may be associated with prognostic indicators.

Development and pilot testing of a decision aid for surrogates of patients with prolonged mechanical ventilation

OBJECTIVE

Shared decision making is inadequate in intensive care units. Decision aids can improve decision making quality, though their role in an intensive care units setting is unclear. We aimed to develop and pilot test a decision aid for shared decision makers of patients undergoing prolonged mechanical ventilation.

SETTING

Intensive care units at three medical centers.

SUBJECTS

Fifty-three surrogate decision makers and 58 physicians.

DESIGN AND INTERVENTIONS

We developed the decision aid using defined methodological guidelines. After an iterative revision process, formative cognitive testing was performed among surrogate-physician dyads. Next, we compared the decision aid to usual care control in a prospective, before/after design study.

MEASUREMENTS AND MAIN RESULTS

Primary outcomes were physician-surrogate discordance for expected patient survival, comprehension of relevant medical information, and the quality of communication. Compared to control, the intervention group had lower surrogate-physician discordance (7 [10] vs. 43 [21]), greater comprehension (11.4 [0.7] vs. 6.1 [3.7]), and improved quality of communication (8.7 [1.3] vs. 8.4 [1.3]) (all p<.05) post-intervention. Hospital costs were lower in the intervention group ($110,609 vs. $178,618; p=.044); mortality did not differ by group (38% vs. 50%, p=.95). Ninety-four percent of the surrogates and 100% of the physicians reported that the decision aid was useful in decision making.

CONCLUSION

We developed a prolonged mechanical ventilation decision aid that is feasible, acceptable, and associated with both improved decision-making quality and less resource utilization. Further evaluation using a randomized controlled trial design is required to evaluate the decision aid's effect on long-term patient and surrogate outcomes.

Psychiatric aspects of chronic palliative care: waiting for death

This article emphasizes the shifting paradigm of palliative care from cancer patients to vital organ failure in chronic diseases. It offers a view about a type of palliative care for patients reaching the pre-terminal phase of a chronic illness. Unlike cancer patients, time is not as sharply delineated and physical pain is not a major factor, but psychological distress is often a major component of the clinical condition. Starting from the perspective of a psychiatric consultant on medical and surgical wards, I present short clinical vignettes to introduce a discussion about psychological manifestations in patients with chronic vital organ failure. The objective is to help patients find meaning to the last stage of their life. To that effect, four key sensitive areas are presented for clinicians to assess end-of-life coping: pressure on character organization, the management of hope, mourning problems, and ill health as a screen for psychological distress.

Factors predicting ventilator dependence in patients with ventilator-associated pneumonia

Objectives. To determine risk factors associated with ventilator dependence in patients with ventilator-associated pneumonia (VAP). Study Design. A retrospective study was conducted at Chang Gung Memorial Hospital, Kaohsiung, from January 1, 2007 to January 31, 2008. Methods. This study evaluated 163 adult patients (aged ≥18 years). Eligibility was evaluated according to the criterion for VAP, Sequential Organ Failure Assessment (SOFA) score, Acute Physiological Assessment and Chronic Health Evaluation II (APACHE II) score. Oxygenation index, underlying comorbidities, septic shock status, previous tracheostomy status, and factors related to pneumonia were collected for analysis. Results. Of the 163 VAP patients in the study, 90 patients survived, yielding a mortality rate of 44.8%. Among the 90 surviving patients, only 36 (40%) had been weaned off ventilators at the time of discharge. Multivariate logistic regression analysis was used to identify underlying factors such as congestive cardiac failure (P = 0.009), initial high oxygenation index value (P = 0.04), increased SOFA scores (P = 0.01), and increased APACHE II scores (P = 0.02) as independent predictors of ventilator dependence. Results from the Kaplan-Meier method indicate that initial therapy with antibiotics could increase the ventilator weaning rate (log Rank test, P < 0.001). Conclusions. Preexisting cardiopulmonary function, high APACHE II and SOFA scores, and high oxygenation index were the strongest predictors of ventilator dependence. Initial empiric antibiotic treatment can improve ventilator weaning rates at the time of discharge.

Integration of palliative care in chronic critical illness management

Palliative care is an essential component of comprehensive care for all patients with chronic critical illness, including those receiving restorative or life-sustaining therapies. Core elements include alleviation of symptom distress, communication about care goals, alignment of treatment with the patient's values and preferences, transitional planning, and family support. Here we address strategies for assessment and management of symptoms, including pain, dyspnea, and depression, and for assisting patients to communicate while endotracheally intubated. We also discuss approaches to optimize communication among clinicians, patients, and families about care goals. Challenges for supporting families and planning for transitions between care settings are identified, while the value of interdisciplinary input is emphasized. We review "consultative" and "integrative" models for integrating palliative care and restorative critical care. Finally, we highlight key ethical issues that arise in the care of chronically critically ill patients and their families.

Persistent systemic inflammation in chronic critical illness

Chronic critical illness (CCI) is syndrome of neuromuscular weakness, brain dysfunction, malnutrition, endocrinopathies, and symptom distress. Two conceptual themes may be useful in discussing CCI. The first is a clinical roadmap in which a patient suffers an acute critical illness, survives the initial insult, but yet is unable to be liberated from the ventilator. The second framework considers the effect of systemic inflammation and CCI, linking acute CCI risk factors with the common clinical features of CCI. Given the association between common CCI antecedents and inflammation, attempts to control and balance the pro-inflammatory and anti-inflammatory mediators should begin as early as possible and continue throughout the ICU stay. Since surrogate measures such as biomarkers often fail to predict the effect of interventions, the focus should be on the outcomes patients experience. As of now, providing evidence-based, high quality ICU management of patients at risk for CCI appears to be the best strategy of care.

Testing the prognostic value of the rapid shallow breathing index in predicting successful weaning in patients requiring prolonged mechanical ventilation

OBJECTIVE

The study objective was to assess the prognostic value of the rapid shallow breathing index (RSBI) in predicting successful weaning of patients from prolonged mechanical ventilation (PMV) in long-term acute care (LTAC) facilities. The RSBI predicts successful ventilator weaning in acutely ill patients. However, its value in PMV is unclear.

METHODS

A retrospective cohort study of patients receiving PMV in LTAC facilities was performed. RSBI was measured daily, with weaning per protocol. Initial, mean, and final RSBI; RSBI ≤ 105; rate of change; and variability were assessed.

RESULTS

Twenty-five of 52 patients were weaned from PMV. Only the mean RSBI and the RSBI on the last day of weaning predicted success (78.7 ± 14.2 vs 99.3 ± 30.2, P = .007; 71.7 ± 31.2 vs 123.3 ± 92.5, P = .005, respectively). RSBI variability and rate of change were different between groups (coefficient of variation, .37 ± .12 vs .51 ± .30, P = .02, rate of change: -3.40 ± 9.40 vs 4.40 ± 11.1 RSBI points/day, P = .005, weaned vs failed).

CONCLUSION

Although isolated RSBI measurements do not predict successful weaning from PMV, RSBI trends may have prognostic value.

Patterns of depressive symptoms in caregivers of mechanically ventilated critically ill adults from intensive care unit admission to 2 months postintensive care unit discharge: a pilot study

OBJECTIVE

To examine trajectories of depressive symptoms in caregivers of critically ill adults from intensive care unit admission to 2 months postintensive care unit discharge and explore patient and caregiver characteristics associated with differing trajectories.

DESIGN

Longitudinal descriptive study.

SETTING

Medical intensive care unit in a tertiary university hospital.

SUBJECTS

Fifty caregivers and 47 patients on mechanical ventilation for ≥4 days.

INTERVENTIONS

None.

MEASUREMENTS AND MAIN RESULTS

Caregivers completed measures assessing depressive symptoms (Short version Center for Epidemiologic Studies-Depression Scale 10-items), burden (Brief Zarit Burden Interview), and health risk behaviors (caregiver health behaviors) during intensive care unit admission, at intensive care unit discharge, and 2 months postintensive care unit discharge. Group-based trajectory analysis was used to identify patterns of change in shortened Center for Epidemiologic Studies-Depression Scale scores over time. Two trajectory groups emerged: 1) caregivers who had clinically significant depressive symptoms (21.0±4.1) during intensive care unit admission that remained high (13.6±5) at 2 months postintensive care unit discharge (high trajectory group, 56%); and 2) caregivers who reported scores that were lower (10.6±5.7) during intensive care unit admission and decreased further (5.7±3.6) at 2 months postintensive care unit discharge (low trajectory group, 44%). Caregivers in the high trajectory group tended to be younger, female, an adult child living with financial difficulty, and less likely to report a religious background or preference. More caregivers in the high trajectory group reported greater burden and more health risk behaviors at all time points; patients tended to be male with poorer functional ability at intensive care unit discharge. Caregivers' responses during intensive care unit admission did not differ in regard to number of days patients were on mechanical ventilation before enrollment.

CONCLUSION

Findings suggest two patterns of depressive symptom response in caregivers of critically ill adults on mechanical ventilation from intensive care unit admission to 2 months postintensive care unit discharge. Future studies are necessary to confirm these findings and implications for providing caregiver support.

Multidisciplinary Team Approach in the Management of Tracheostomy Patients

Objective

To examine whether the implementation of a multidisciplinary percutaneous tracheostomy team decreases complications, improves efficiency in patient care, and reduces length of stay and cost in patients undergoing percutaneous tracheostomy.

Study Design

Case series with planned data collection.

Setting

Urban, academic, tertiary care medical center.

Subjects and Methods

Patients who underwent a percutaneous tracheostomy in 2004 and 2008, before and after the formation of a multidisciplinary percutaneous tracheostomy team, were included in the study. Data for the study were retrieved from a tracheostomy database. Measured outcomes include complications, efficiency, length of stay, and cost.

Results

Complications such as airway bleeding and physiological disturbances decreased significantly in 2008 as compared with 2004. The percentage of patients who received a tracheostomy within 2 days increased from 42.3% to 92% (2004 vs 2008), showing improvement in efficiency of care. There was no significant difference between the groups in terms of infection rate, length of stay, or mortality. However, in a subanalysis, the length of stay was found to be decreased in patients whose primary diagnosis was a neurological disorder. Finally, despite the necessity of a hospital-based subsidy, the team approach yielded substantial financial benefit to the medical center.

Conclusions

Airway bleeding, physiological disturbances, and efficiency of care improved after the institution of a multidisciplinary percutaneous tracheostomy team approach and may have a favorable impact on health care costs.

A multicenter mortality prediction model for patients receiving prolonged mechanical ventilation

OBJECTIVE

Significant deficiencies exist in the communication of prognosis for patients requiring prolonged mechanical ventilation after acute illness, in part because of clinician uncertainty about long-term outcomes. We sought to refine a mortality prediction model for patients requiring prolonged ventilation using a multicentered study design.

DESIGN

Cohort study.

SETTING

Five geographically diverse tertiary care medical centers in the United States (California, Colorado, North Carolina, Pennsylvania, and Washington).

PATIENTS

Two hundred sixty adult patients who received at least 21 days of mechanical ventilation after acute illness.

INTERVENTIONS

None.

MEASUREMENTS AND MAIN RESULTS

For the probability model, we included age, platelet count, and requirement for vasopressors and/or hemodialysis, each measured on day 21 of mechanical ventilation, in a logistic regression model with 1-yr mortality as the outcome variable. We subsequently modified a simplified prognostic scoring rule (ProVent score) by categorizing the risk variables (age 18-49, 50-64, and ≥65 yrs; platelet count 0-150 and >150; vasopressors; hemodialysis) in another logistic regression model and assigning points to variables according to β coefficient values. Overall mortality at 1 yr was 48%. The area under the curve of the receiver operator characteristic curve for the primary ProVent probability model was 0.79 (95% confidence interval 0.75-0.81), and the p value for the Hosmer-Lemeshow goodness-of-fit statistic was .89. The area under the curve for the categorical model was 0.77, and the p value for the goodness-of-fit statistic was .34. The area under the curve for the ProVent score was 0.76, and the p value for the Hosmer-Lemeshow goodness-of-fit statistic was .60. For the 50 patients with a ProVent score >2, only one patient was able to be discharged directly home, and 1-yr mortality was 86%.

CONCLUSION

The ProVent probability model is a simple and reproducible model that can accurately identify patients requiring prolonged mechanical ventilation who are at high risk of 1-yr mortality.

Staff satisfaction between 2 models of care for the chronically critically ill

INTRODUCTION

Chronically critically ill (CCI) patients are a growing population in intensive care units (ICUs), and evidence suggests that this patient group is perceived as demanding by healthcare professionals. However, information is scarce regarding organizational factors that affect staff satisfaction during the care of CCI patients.

PURPOSE

The purpose of this study was to evaluate staff satisfaction between 2 models of care for the CCI. In the first model, a patient-centered program of care in a traditional ICU was evaluated. In the second model, care of patients hospitalized in a multidisciplinary ICU ward dedicated to the CCI was further evaluated. Indicators of staff satisfaction with respect to the care of the CCI were also identified.

METHODS

A before and after study was used to evaluate the 2 models of care. After implementation of the first model in 2006, an initial evaluation was performed using a questionnaire given to ICU health-care personnel. In 2009, after implementing the second model (a separate ward for the CCI), a second evaluation took place.

RESULTS

A total of 147 participants answered the questionnaire in both phases. Participants described CCI as a burden, and grouping these patients into 1 ward only increased this perception. Overall, the staff was more satisfied with the first model of care. In this model, the indicators of increased satisfaction were perceived access to professional development and the availability of information.

CONCLUSIONS

Results from this study provide information about health-care professionals' perceived burden of care when treating CCI patients. Strategies promoting professional development have a potential to increase staff satisfaction when it comes to the care of this patient group.

Economics of mechanical ventilation and respiratory failure

For patients with acute respiratory failure, mechanical ventilation provides the most definitive life-sustaining therapy. Because of the intense resources required to care for these patients, its use accounts for considerable costs. There is great societal need to ensure that use of mechanical ventilation maximizes societal benefits while minimizing costs, and that mechanical ventilation, and ventilator support in general, is delivered in the most efficient and cost-effective manner. This review summarizes the economic aspects of mechanical ventilation and summarizes the existing literature that examines its economic impact cost effectiveness.

Neglect of quality-of-life considerations in intensive care unit family meetings for long-stay intensive care unit patients

OBJECTIVE

To examine the frequency with which quality of life and treatment limitation were discussed in formal family meetings for long-stay intensive care unit patients with high risk for mortality and morbidity.

DESIGN

Descriptive observational study.

SETTING

Five intensive care units.

PATIENTS

One hundred sixteen family surrogate decisionmakers of long-stay intensive care unit patients who participated in an intensive communication system that aimed to provide weekly meetings with family decisionmakers. The structure of each meeting was to address medical update, patient preferences, treatment plan, and milestones for evaluating the treatment plan.

INTERVENTIONS

None.

MEASUREMENTS AND MAIN RESULTS

We audiotaped initial family meetings for 116 family decisionmakers for a total of 180 meetings. On average, meetings were 24 mins long with a majority of time being devoted to nonemotional speech and little (12%) spent discussing patient preferences. Quality of life was discussed in 45% and treatment limitation in 23% of all meetings. Quality-of-life discussions were more likely to occur when patients were admitted to a medical intensive care unit (odds ratio [OR] 5.9; p = .005), have a family decisionmaker who is a spouse (OR 9.4; p = .0001), were older (OR 1.04; p = 01), have a shorter length of stay (OR 0.93; p = .001), and have a family decisionmaker who was a spouse (OR 5.1; p = .002). For those with a treatment limitation discussion, 67% had a do-not-resuscitate order, 40% were admitted to a medical intensive care unit, 56% had a family decisionmaker who had been their caregiver, and 48% of their family decisionmakers were their children.

CONCLUSIONS

To guide discussion with families of the subset of intensive care unit patients with high risk of mortality and long-term morbidity, quality of life was not consistently addressed. Continued efforts to assist clinicians in routinely including discussions of quality-of-life outcomes is needed.

Development and validation of a printed information brochure for families of chronically critically ill patients

OBJECTIVE

Families and other surrogate decisionmakers for chronically critically ill patients often lack information about patient prognosis or options for care. This study describes an approach to develop and validate a printed information brochure about chronic critical illness aimed at improving comprehension of the disease process and outcomes for patients' families and other surrogate decisionmakers.

DESIGN

Investigators reviewed existing literature to identify key domains of informational needs. Content of these domains was incorporated in a draft brochure that included graphics and a glossary of terms. Clinical sensibility, balance, and emotional sensitivity of the draft brochure were tested in a series of evaluations by cohorts of experienced clinicians (n = 49) and clinical content experts (n = 8) with revisions after each review.

SUBJECTS

Cognitive testing of the brochure was performed through interviews of ten representative family members of chronically critically ill patients with quantitative and qualitative analysis of responses.

MEASUREMENTS AND MAIN RESULTS

Clinical sensibility and balance were rated in the two most favorable categories on a five-point scale by more than two thirds of clinicians and content experts. After review, family members described the brochure as clear and readable and recommended that the brochure be delivered to family members by clinicians followed by a discussion of its contents. They indicated that the glossary was useful and recommended supplementation by additional lists of local resources. After reading the brochure, their prognostic estimates became more consistent with actual outcomes.

CONCLUSIONS

We have developed and validated a printed information brochure that may improve family comprehension of chronic critical illness and its outcomes. The structured process that is described can serve as a template for the development of other information aids for use with seriously ill populations.

Nurses' perceptions of communication training in the ICU

OBJECTIVE

To describe the experience and perceptions of nurse study participants regarding a communication intervention (training and communication tools) for use with nonspeaking, critically ill patients.

RESEARCH METHODOLOGY/DESIGN

Small focus groups and an individual interview were conducted with six critical care nurses. Transcripts were analysed using qualitative content analysis and constant comparison.

SETTING

Two ICUs within a large, metropolitan medical centre in western Pennsylvania, United States of America.

MAIN OUTCOME MEASURES

Critical care nurses' evaluations of (1) a basic communication skills training programme (BCST) and (2) augmentative and alternative communication strategies (AAC) introduced during their study participation.

RESULTS

Six main categories were identified in the data: (1) communication value/perceived competence; (2) communication intention; (3) benefits of training; (4) barriers to implementation; (5) preferences/utilisation of strategies; and 6) leading-following. Perceived value of and individual competence in communication with nonspeaking patients varied. Nurses prioritised communication about physical needs, but recognised complexity of other intended patient messages. Nurses evaluated the BCST as helpful in reinforcing basic communication strategies and found several new strategies effective. Advanced strategies received mixed reviews. Primary barriers to practise integration included patients' mental status, time constraints, and the small proportion of nurses trained or knowledgeable about best patient communication practices in the ICU.

CONCLUSIONS

The results suggest that the communication skills training programme could be valuable in reinforcing basic/intuitive communication strategies, assisting in the acquisition of new skills and ensuring communication supply availability. Practice integration will most likely require unit-wide interdisciplinary dissemination, expert modelling and reinforcement.

Benefits of High-Intensity Intensive Care Unit Physician Staffing under the Affordable Care Act

The Affordable Care Act signed into law by President Obama, with its value-based purchasing program, is designed to link payment to quality processes and outcomes. Treatment of critically ill patients represents nearly 1% of the gross domestic product and 25% of a typical hospital budget. Data suggest that high-intensity staffing patterns in the intensive care unit (ICU) are associated with cost savings and improved outcomes. We evaluate the literature investigating the cost-effectiveness and clinical outcomes of high-intensity ICU physician staffing as recommended by The Leapfrog Group (a consortium of companies that purchase health care for their employees) and identify ways to overcome barriers to nationwide implementation of these standards. Hospitals that have implemented the Leapfrog initiative have demonstrated reductions in mortality and length of stay and increased cost savings. High-intensity staffing models appear to be an immediate cost-effective way for hospitals to meet the challenges of health care reform.

Progressive care units: different but the same

Progressive care units are increasingly common in hospitals in the United States. These units are often used to bridge the gap between intensive care units and medical-surgical units, with the goal of providing cost-effective, high-quality, safe care. Although progressive care units today may seem to provide care for a wide variety of patients, these patients do share certain typical features: they require a high intensity of nursing care and/or a high level of surveillance. Nurses working in progressive care units all must have certain basic competencies. Those core competencies have been identified and should form the basis for education and training of progressive care nurses.

Skeletal morbidity among survivors of critical illness

OBJECTIVES

To describe the incident fracture rate in survivors of critical illness and to compare fracture risk with population-matched control subjects.

DESIGN

Retrospective longitudinal case-cohort study.

SETTING

A tertiary adult intensive care unit in Australia.

PATIENTS

All patients ventilated admitted to intensive care and requiring mechanical ventilation for ≥48 hrs between January 1998 and December 2005.

INTERVENTIONS

None.

MEASUREMENTS AND MAIN RESULTS

New fractures were identified in the study population for the postintensive care unit period (intensive care unit discharge to January 2008). The incident fracture rate and age-adjusted fracture risk of the female intensive care unit population were compared with the general population adult females derived from the Geelong Osteoporosis Study. Over the 8-yr period, a total of 739 patients (258 women, 481 men) were identified. After a median follow-up of 3.7 yrs (interquartile range, 2.0-5.9 yrs) for women and 4.0 yrs (interquartile range, 2.1-6.1 yrs) for men, incident fracture rates (95% confidence interval) per 100 patient years were 3.84 (2.58-5.09) for females 2.41 (1.73-3.09) for males. Compared with an age-matched random population-based sample of women, elderly women were at increased risk for sustaining an osteoporosis-related fracture after critical illness (hazard ratio, 1.65; 95% confidence interval, 1.08-2.52; p = .02).

CONCLUSIONS

The increase in fracture risk observed in postintensive care unit older females suggests an association between critical illness and subsequent skeletal morbidity. The explanation for this association is not explored in this study and includes the effects of pre-existing patient factors and/or direct effects of critical illness. Prospective research evaluating risk factors, the relationship between critical illness and bone turnover, the extent and duration of bone loss, and the associated morbidity in this population is warranted.

The end-of-life family meeting in intensive care part I: Indications, outcomes, and family needs

This is a three-part article that reviews the literature on end-of-life family meetings in intensive care, focused on situations when the patient cannot participate. Family meetings in end-of-life care, especially when conducted prophylactically or proactively, have been shown to be effective procedures for improving family and staff satisfaction and even reducing resource utilization. The first part of the article outlines the family needs that should be addressed in such meetings, including clinician availability, consistent information sharing (especially of prognosis), empathic communication and support, facilitation of bereavement, and trust. The second part addresses family-centered, shared decision making and sources of conflict, as well as related communication and negotiation skills and how to end the meeting. Families and clinicians differ in 1) their understanding of the patient's condition and prognosis; 2) the emotional impact of the illness, particularly the personal meaning of pursuing recovery or limiting supports; and 3) their views of how to make decisions about life-prolonging treatments. The final part draws on the previous two sections to present a structured format and guide for communication skills in conflictual meetings. Ten steps for a humane and effective meeting are suggested, illustrated with sample conversations.

Nutrition management for the patient requiring prolonged mechanical ventilation

Patients requiring prolonged mechanical ventilation are often medically complex and present with a wide range of pulmonary conditions, including neuromuscular diseases, chronic pulmonary diseases, and chronic critical illness. These patients present the nutrition support professional with many challenges. However, accurate nutrition assessment, timely and effective nutrition interventions, and careful monitoring will help patients meet their medical and nutrition goals.

Physiotherapy in critically ill patients

Prolonged stay in Intensive Care Unit (ICU) can cause muscle weakness, physical deconditioning, recurrent symptoms, mood alterations and poor quality of life. Physiotherapy is probably the only treatment likely to increase in the short- and long-term care of the patients admitted to these units. Recovery of physical and respiratory functions, coming off mechanical ventilation, prevention of the effects of bed-rest and improvement in the health status are the clinical objectives of a physiotherapy program in medical and surgical areas. To manage these patients, integrated programs dealing with both whole-body physical therapy and pulmonary care are needed. There is still limited scientific evidence to support such a comprehensive approach to all critically ill patients; therefore we need randomised studies with solid clinical short- and long-term outcome measures.

Use of the Functional Independence Measure in people for whom weaning from mechanical ventilation is difficult

BACKGROUND

The Functional Independence Measure (FIM) has been proposed as an outcome measure for people receiving pulmonary rehabilitation after an acute exacerbation of chronic obstructive pulmonary disease. Objective The purpose of this study was to examine the clinical utility of the FIM after a weaning program in people for whom weaning from mechanical ventilation is difficult. Design This was a retrospective observational study.

METHODS

People who had had a tracheostomy, for whom weaning from mechanical ventilation was difficult, and who were participating in a weaning program (WP group) were retrospectively evaluated. People receiving pulmonary rehabilitation after an acute exacerbation of chronic obstructive pulmonary disease (PR group) were included as a validated control group. The scores on the FIM questionnaire and the Medical Research Council dyspnea scores were assessed at admission to and at discharge from the programs.

RESULTS

Admission and discharge data from 56 participants in the WP group and 63 participants in the PR group were compared. At admission, according to the FIM, 5 participants in the WP group (7.7%) were defined as functionally independent, 34 (52.3%) were defined as partially dependent, and 26 (40.0%) were defined as completely dependent. At discharge, the mean FIM global score was significantly improved, from 47.9 (SD=22.8) to 62.6 (SD=30.0). For participants in the WP group, changes in the FIM score were significantly inversely related to the admission Acute Physiology and Chronic Health Evaluation (R=-.286) and Simplified Acute Physiology (R=-.293) scores and directly related to the admission FIM score (R=.355). At admission, 46 participants in the PR group (67.7%) were defined as functionally independent, 19 (27.9%) were defined as partially dependent, and 3 (4.4%) were defined as completely dependent. After pulmonary rehabilitation, the mean FIM global score was significantly improved, from 97.4 (SD=27.5) to 102.5 (SD=25.7). Limitations The study was not randomized and involved a relatively small sample size.

CONCLUSIONS

The FIM can be used as a functional status outcome measure in people for whom weaning from mechanical ventilation is difficult.

Health care quality in end-of-life care: promoting palliative care in the intensive care unit

Seminal articles published in the late 1990s instigated not only an intense interest in health care quality but also a new era of research into quality end-of-life care, particularly in intensive care units (ICUs). ICUs can improve health care quality at the end of life by better using palliative care services and palliative care-related principles. This article details how the interest in health care quality has spurred a similar interest in end-of-life and palliative care in ICUs, defines palliative care and describes how it improves health care quality, and highlights barriers to the incorporation of palliative care in ICUs.

Functional disability 5 years after acute respiratory distress syndrome

BACKGROUND

There have been few detailed, in-person interviews and examinations to obtain follow-up data on 5-year outcomes among survivors of the acute respiratory distress syndrome (ARDS).

METHODS

We evaluated 109 survivors of ARDS at 3, 6, and 12 months and at 2, 3, 4, and 5 years after discharge from the intensive care unit. At each visit, patients were interviewed and examined; underwent pulmonary-function tests, the 6-minute walk test, resting and exercise oximetry, chest imaging, and a quality-of-life evaluation; and reported their use of health care services.

RESULTS

At 5 years, the median 6-minute walk distance was 436 m (76% of predicted distance) and the Physical Component Score on the Medical Outcomes Study 36-Item Short-Form Health Survey was 41 (mean norm score matched for age and sex, 50). With respect to this score, younger patients had a greater rate of recovery than older patients, but neither group returned to normal predicted levels of physical function at 5 years. Pulmonary function was normal to near-normal. A constellation of other physical and psychological problems developed or persisted in patients and family caregivers for up to 5 years. Patients with more coexisting illnesses incurred greater 5-year costs.

CONCLUSIONS

Exercise limitation, physical and psychological sequelae, decreased physical quality of life, and increased costs and use of health care services are important legacies of severe lung injury.

The difficult-to-wean patient

Up to 20% of patients requiring mechanical ventilation will suffer from difficult weaning (the need of more than 7 days of weaning after the first spontaneous breathing trial), which may depend on several reversible causes: respiratory and/or cardiac load, neuromuscular and neuropsychological factors, and metabolic and endocrine disorders. Clinical consequences (and/or often causes) of prolonged mechanical ventilation comprise features such as myopathy, neuropathy, and body composition alterations and depression, which increase the costs, morbidity and mortality of this. These difficult-to-wean patients may be managed in two type of units: respiratory intermediate-care units and specialized regional weaning centers. Two weaning protocols are normally used: progressive reduction of ventilator support (which we usually use), or progressively longer periods of spontaneous breathing trials. Physiotherapy is an important component of weaning protocols. Weaning success depends strongly on patients&#x2019; complexity and comorbidities, hospital organization and personnel expertise, availability of early physiotherapy, use of weaning protocols, patients&#x2019; autonomy and families&#x2019; preparation for home discharge with mechanical ventilation.