DNR directives are established early in mechanically ventilated intensive care unit patients

Predictors to forgo resuscitative effort during Covid-19 critical illness at the height of the pandemic : A retrospective cohort study

BACKGROUND

Early in the Covid-19 pandemic, there was uncertainty regarding critical illness prognosis and challenges to traditional face-to-face family meetings. Ethnic minority populations have suffered disproportionately worse outcomes during the pandemic, which may in part relate to differences in end-of-life decision-making.

AIM

Characterize patterns of and factors associated with decisions to forgo resuscitative efforts, as measured by do-not-resuscitate orders, during critical illness with Covid-19.

DESIGN

Retrospective cohort with medical record abstraction.

SETTING/PARTICIPANTS

Adult patients diagnosed with SARS-Cov-2 virus via polymerase chain reaction and admitted to the intensive care unit at an academic hospital, which cares for the city's underserved communities, between March 1 and June 7, 2020 who underwent invasive mechanical ventilation for at least 48 hours.

RESULTS

In this cohort (n = 155), 45% were black people, and 51% spoke English as their primary language. Median time to first goals-of-care conversation was 3.9 days (IQR 1.9-7.6) after intensive care unit admission. Overall 61/155 patients (39%) transitioned to do-not-resuscitate status, and 50/62 (82%) patients who died had do-not-resuscitate orders. Multivariate analysis shows age and palliative care involvement as the strongest predictors of decision to instate do-not-resuscitate order. There was no association between race, ethnicity, or language and decisions to forego resuscitation.

CONCLUSIONS

During this time of crisis and uncertainty with limited resources and strained communication, time to first goals of care conversation was shorter than in pre-pandemic studies, but rates of foregoing resuscitation remained similar, with no differences observed by race, ethnicity, or language. This study suggests that early palliative care involvement and non-traditional communications, including videoconferencing, to facilitate goals of care conversations could have mitigated potential disparities in end-of-life decision making patterns during the pandemic.

Differences in Characteristics, Hospital Care and Outcomes between Acute Critically Ill Emergency Department Patients with Early and Late Do-Not-Resuscitate Orders

Background: A do-not-resuscitate (DNR) order is associated with an increased risk of death among emergency department (ED) patients. Little is known about patient characteristics, hospital care, and outcomes associated with the timing of the DNR order. Aim: Determine patient characteristics, hospital care, survival, and resource utilization between patients with early DNR (EDNR: signed within 24 h of ED presentation) and late DNR orders. Design: Retrospective observational study. Setting/Participants: We enrolled consecutive, acute, critically ill patients admitted to the emergency intensive care unit (EICU) at Taipei Veterans General Hospital from 1 February 2018, to 31 January 2020. Results: Of the 1064 patients admitted to the EICU, 619 (58.2%) had EDNR and 445 (41.8%) LDNR. EDNR predictors were age >85 years (adjusted odd ratios (AOR) 1.700, 1.027–2.814), living in long-term care facilities (AOR 1.880, 1.066–3.319), having advanced cardiovascular diseases (AOR 2.128, 1.039–4.358), “medical staff would not be surprised if the patient died within 12 months” (AOR 1.725, 1.193–2.496), and patients’ family requesting palliative care (AOR 2.420, 1.187–4.935). EDNR patients underwent lesser endotracheal tube (ET) intubation (15.6% vs. 39.9%, p < 0.001) and had reduced epinephrine injection (19.9% vs. 30.3%, p = 0.009), ventilator support (16.7% vs. 37.9%, p < 0.001), and narcotic use (51.1% vs. 62.6%, p = 0.012). EDNR patients had significantly lower 7-day (p < 0.001), 30-day (p < 0.001), and 90-day (p = 0.023) survival. Conclusions: EDNR patients underwent decreased ET intubation and had reduced epinephrine injection, ventilator support, and narcotic use during EOL as well as decreased length of hospital stay, hospital expenditure, and survival compared to LDNR patients.

Timing is everything: Early do-not-resuscitate orders in the intensive care unit and patient outcomes

Background

The use of Do-Not-Resuscitate (DNR) orders has increased but many are placed late in the dying process. This study is to determine the association between the timing of DNR order placement in the intensive care unit (ICU) and nurses’ perceptions of patients’ distress and quality of death.

Methods

200 ICU patients and the nurses (n = 83) who took care of them during their last week of life were enrolled from the medical ICU and cardiac care unit of New York Presbyterian Hospital/Weill Cornell Medicine in Manhattan and the surgical ICU at the Brigham and Women’s Hospital in Boston. Nurses were interviewed about their perceptions of the patients’ quality of death using validated measures. Patients were divided into 3 groups—no DNR, early DNR, late DNR placement during the patient’s final ICU stay. Logistic regression analyses modeled perceived patient quality of life as a function of timing of DNR order placement. Patient’s comorbidities, length of ICU stay, and procedures were also included in the model.

Results

59 patients (29.5%) had a DNR placed within 48 hours of ICU admission (early DNR), 110 (55%) placed after 48 hours of ICU admission (late DNR), and 31 (15.5%) had no DNR order placed. Compared to patients without DNR orders, those with an early but not late DNR order placement had significantly fewer non-beneficial procedures and lower odds of being rated by nurses as not being at peace (Adjusted Odds Ratio namely AOR = 0.30; [CI = 0.09–0.94]), and experiencing worst possible death (AOR = 0.31; [CI = 0.1–0.94]) before controlling for procedures; and consistent significance in severe suffering (AOR = 0.34; [CI = 0.12–0.96]), and experiencing a severe loss of dignity (AOR = 0.33; [CI = 0.12–0.94]), controlling for non-beneficial procedures.

Conclusions

Placement of DNR orders within the first 48 hours of the terminal ICU admission was associated with fewer non-beneficial procedures and less perceived suffering and loss of dignity, lower odds of being not at peace and of having the worst possible death.

Demographics, management and outcome of females and males with acute respiratory distress syndrome in the LUNG SAFE prospective cohort study

Rationale

We wished to determine the influence of sex on the management and outcomes in acute respiratory distress syndrome (ARDS) patients in the Large Observational Study to Understand the Global Impact of Severe Acute Respiratory Failure (LUNG SAFE).

Methods

We assessed the effect of sex on mortality, intensive care unit and hospital length of stay, and duration of invasive mechanical ventilation (IMV) in patients with ARDS who underwent IMV, adjusting for plausible clinical and geographic confounders.

Findings

Of 2377 patients with ARDS, 905 (38%) were female and 1472 (62%) were male. There were no sex differences in clinician recognition of ARDS or critical illness severity profile. Females received higher tidal volumes (8.2±2.1 versus 7.2±1.6 mL·kg−1; p<0.0001) and higher plateau and driving pressures compared with males. Lower tidal volume ventilation was received by 50% of females compared with 74% of males (p<0.0001). In shorter patients (height ≤1.69 m), females were significantly less likely to receive lower tidal volumes. Surviving females had a shorter duration of IMV and reduced length of stay compared with males. Overall hospital mortality was similar in females (40.2%) versus males (40.2%). However, female sex was associated with higher mortality in patients with severe confirmed ARDS (OR for sex (male versus female) 0.35, 95% CI 0.14–0.83).

Conclusions

Shorter females with ARDS are less likely to receive lower tidal volume ventilation, while females with severe confirmed ARDS have a higher mortality risk. These data highlight the need for better ventilatory management in females to improve their outcomes from ARDS.

Review of Ordering Don't Resuscitate in Iranian Dying Patients

Making decision on not to resuscitate is a confusing, conflicting and complex issue and depends on each country's culture and customs. Therefore, each country needs to take action in accordance with its cultural, ethical, religious and legal contexts to develop guidelines in this regard. Since the majority of Iran's people are Muslims, and in Islam, the human life is considered sacred, based on the values of the community, an Iranian Islamic agenda needs to be developed not taking measures about resuscitation of dying patients. It is necessary to develop an Iranian Islamic guidelines package in order to don't resuscitate in dying patients.

Quantifying the Mortality Impact of Do-Not-Resuscitate Orders in the ICU

OBJECTIVES

We quantified the 28-day mortality effect of preexisting do-not-resuscitate orders in ICUs.

DESIGN

Longitudinal, retrospective study of patients admitted to five ICUs at a tertiary university medical center (Beth Israel Deaconess Medical Center, BIDMC, Boston, MA) between 2001 and 2008.

INTERVENTION

None.

PATIENTS

Two cohorts were defined: patients with do not resuscitate advance directives on day 1 of ICU admission and a control group comprising patients with no limitations of level of care on ICU day 1 (full code).

MEASUREMENTS AND MAIN RESULTS

The primary outcome was mortality at 28 days after ICU admission. Of 19,007 ICU patients, 1,239 patients (6.5%) had a do-not-resuscitate order on the first day of ICU admission and survived 48 hours in the ICU. We matched those do-not-resuscitate patients with 2,402 patients with full-code status. Twenty-eight day and 1-year mortality were both significantly higher in the do-not-resuscitate group (33.9% vs 18.4% and 60.7% vs 40.2%; p < 0.001, respectively).

CONCLUSION

Do-not-resuscitate status is an independent risk factor for ICU mortality. This may reflect severity of illness not captured by other clinical factors, but the perceptions of the treating team related to do-not-resuscitate status could also be causally responsible for increased mortality in patients with do-not-resuscitate status.

Factors associated with life-sustaining treatment restriction in a general intensive care unit

Purpose

Few previous studies have investigated associations between clinical variables available after 24 hours in the intensive care unit (ICU), including the Charlson Comorbidity Index (CCI), and decisions to restrict life-sustaining treatment. The aim of this study was to identify factors associated with the life-sustaining treatment restriction and to explore if CCI contributes to explaining decisions to restrict life-sustaining treatment in the ICU at a university hospital in Norway from 2007 to 2009.

Methods

Patients’ Simplified Acute Physiology Score II (SAPS II), age, sex, type of admission, and length of hospital stay prior to being admitted to the unit were recorded. We retrospectively registered the CCI for all patients based on the medical records prior to the index stay. A multivariable logistic regression analysis was used to assess factors associated with treatment restriction during the ICU stay.

Results

We included 936 patients, comprising 685 (73%) medical, 204 (22%) unscheduled and 47 (5%) scheduled surgical patients. Treatment restriction was experienced by 241 (26%) patients during their ICU stay. The variables that were significantly associated with treatment restriction in multivariable analysis were older age (odds ratio [OR] = 1.48 per 10 years, 95% confidence interval [CI] = 1.28–1.72 per 10 years), higher SAPS II (OR = 1.05, 95% CI = 1.04–1.07) and CCI values relative to the reference of CCI = 0: CCI = 2 (OR = 2.08, 95% CI = 1.20–3.61) and CCI≥3 (OR = 2.72, 95% CI = 1.65–4.47).

Conclusions

In multivariable analysis, older age, greater illness severity after 24 h in the ICU and greater comorbidity at hospital admission were independently associated with subsequent life-sustaining treatment restriction. The CCI score contributed additional information independent of the SAPS II illness severity rating.

Failure of the Current Advance Care Planning Paradigm: Advocating for a Communications-Based Approach

The purpose of advance care planning (ACP) is to allow an individual to maintain autonomy in end-of-life (EOL) medical decision-making even when incapacitated by disease or terminal illness. The intersection of EOL medical technology, ethics of EOL care, and state and federal law has driven the development of the legal framework for advance directives (ADs). However, from an ethical perspective the current legal framework is inadequate to make ADs an effective EOL planning tool. One response to this flawed AD process has been the development of Physician Orders for Life Sustaining Treatment (POLST). POLST has been described as a paradigm shift to address the inadequacies of ADs. However, POLST has failed to bridge the gap between patients and their autonomous, preferred EOL care decisions. Analysis of ADs and POLST reveals that future policy should focus on a communications-based approach to ACP that emphasizes ongoing interactions between healthcare providers and patients to optimize EOL medical care to the individual patient.

The Associations Between the Religious Background, Social Supports, and Do-Not-Resuscitate Orders in Taiwan: An Observational Study

Prior studies have demonstrated important implications related to religiosity and a do-not-resuscitate (DNR) decision. However, the association between patients' religious background and DNR decisions is vague. In particular, the association between the religious background of Buddhism/Daoism and DNR decisions has never been examined. The objective of this study was to examine the association between patients' religious background and their DNR decisions, with a particular focus on Buddhism/Daoism.The medical records of the patients who were admitted to the 3 surgical intensive care units (SICU) in a university-affiliated medical center located at Northern Taiwan from June 1, 2011 to December 31, 2013 were retrospectively collected. We compared the clinical/demographic variables of DNR patients with those of non-DNR patients using the Student t test or χ test depending on the scale of the variables. We used multivariate logistic regression analysis to examine the association between the religious backgrounds and DNR decisions.A sample of 1909 patients was collected: 122 patients had a DNR order; and 1787 patients did not have a DNR order. Old age (P = 0.02), unemployment (P = 0.02), admission diagnosis of "nonoperative, cardiac failure/insufficiency" (P = 0.03), and severe acute illness at SICU admission (P < 0.01) were significantly associated with signing of DNR orders. Patients' religious background of Buddhism/Daoism (P = 0.04), married marital status (P = 0.02), and admission diagnosis of "postoperative, major surgery" (P = 0.02) were less likely to have a DNR order written during their SICU stay. Furthermore, patients with poor social support, as indicated by marital and working status, were more likely to consent to a DNR order during SICU stay.This study showed that the religious background of Buddhism/Daoism was significantly associated with a lower likelihood of consenting to a DNR, and poor social support was significantly associated with a higher likelihood of having a DNR order written during SICU stay.

"Do not resuscitate" decisions in acute respiratory distress syndrome. A secondary analysis of clinical trial data

RATIONALE

Factors and outcomes associated with end-of-life decision-making among patients during clinical trials in the intensive care unit are unclear.

OBJECTIVES

We sought to determine patterns and outcomes of Do Not Resuscitate (DNR) decisions among critically ill patients with acute respiratory distress syndrome (ARDS) enrolled in a clinical trial.

METHODS

We performed a secondary analysis of data from the ARDS Network Fluid and Catheter Treatment Trial (FACTT), collected between 2000 and 2005. We calculated mortality outcomes stratified by code status, and compared baseline characteristics of patients who became DNR during the trial with participants who remained full code.

MEASUREMENTS AND MAIN RESULTS

Among 809 FACTT participants with a code status recorded, 232 (28.7%) elected DNR status. Specifically, 37 (15.9%) chose to withhold cardiopulmonary resuscitation alone, 44 (19.0%) elected to withhold some life support measures in addition to cardiopulmonary resuscitation, and 151 (65.1%) had life support withdrawn. Admission severity of illness as measured by APACHE III score was strongly associated with election of DNR status (odds ratio, 2.2; 95% confidence interval, 1.85-2.62; P < 0.0001). Almost all (97.0%; 225 of 232) patients who selected DNR status died, and 79% (225 of 284) of patients who died during the trial were DNR. Among patients who chose DNR status but did not elect withdrawal of life support, 91% (74 of 81) died.

CONCLUSIONS

The vast majority of deaths among clinical trial patients with ARDS were preceded by a DNR order. Unlike other studies of end-of-life decision-making in the intensive care unit, nearly all patients who became DNR died. The impact of variation of practice in end-of-life decision-making during clinical trials warrants further study.

Physician-related barriers to communication and patient- and family-centred decision-making towards the end of life in intensive care: a systematic review

INTRODUCTION

Although many terminally ill people are admitted to an intensive care unit (ICU) at the end of life, their care is often inadequate because of poor communication by physicians and lack of patient- and family-centred care. The aim of this systematic literature review was to describe physician-related barriers to adequate communication within the team and with patients and families, as well as barriers to patient- and family-centred decision-making, towards the end of life in the ICU. We base our discussion and evaluation on the quality indicators for end-of-life care in the ICU developed by the Robert Wood Johnson Foundation Critical Care End-of-Life Peer Workgroup.

METHOD

Four electronic databases (MEDLINE, Embase, CINAHL and PsycINFO) were searched, using controlled vocabulary and free text words, for potentially relevant records published between 2003 and 2013 in English or Dutch. Studies were included if the authors reported on physician-related and physician-reported barriers to adequate communication and decision-making. Barriers were categorized as being related to physicians' knowledge, physicians' attitudes or physicians' practice. Study quality was assessed using design-specific tools. Evidence for barriers was graded according to the quantity and quality of studies in which the barriers were reported.

RESULTS

Of 2,191 potentially relevant records, 36 studies were withheld for data synthesis. We determined 90 barriers, of which 46 were related to physicians' attitudes, 24 to physicians' knowledge and 20 to physicians' practice. Stronger evidence was found for physicians' lack of communication training and skills, their attitudes towards death in the ICU, their focus on clinical parameters and their lack of confidence in their own judgment of their patient's true condition.

CONCLUSIONS

We conclude that many physician-related barriers hinder adequate communication and shared decision-making in ICUs. Better physician education and palliative care guidelines are needed to enhance knowledge, attitudes and practice regarding end-of-life care. Patient-, family- and health care system-related barriers need to be examined.

The effects of advance care planning on end-of-life care: a systematic review

BACKGROUND

Advance care planning is the process of discussing and recording patient preferences concerning goals of care for patients who may lose capacity or communication ability in the future. Advance care planning could potentially improve end-of-life care, but the methods/tools used are varied and of uncertain benefit. Outcome measures used in existing studies are highly variable.

AIM

To present an overview of studies on the effects of advance care planning and gain insight in the effectiveness of different types of advance care planning.

DESIGN

Systematic review.

DATA SOURCES

We systematically searched PubMed, EMBASE and PsycINFO databases for experimental and observational studies on the effects of advance care planning published in 2000-2012.

RESULTS

The search yielded 3571 papers, of which 113 were relevant for this review. For each study, the level of evidence was graded. Most studies were observational (95%), originated from the United States (81%) and were performed in hospitals (49%) or nursing homes (32%). Do-not-resuscitate orders (39%) and written advance directives (34%) were most often studied. Advance care planning was often found to decrease life-sustaining treatment, increase use of hospice and palliative care and prevent hospitalisation. Complex advance care planning interventions seem to increase compliance with patients' end-of-life wishes.

CONCLUSION

The effects of different types of advance care planning have been studied in various settings and populations using different outcome measures. There is evidence that advance care planning positively impacts the quality of end-of-life care. Complex advance care planning interventions may be more effective in meeting patients' preferences than written documents alone. More studies are needed with an experimental design, in different settings, including the community.

Advance directives in the trauma intensive care unit: Do they really matter?

Despite advances in the care of the injured patient, 22% of trauma patients admitted to the intensive care unit will die from their injuries. As a majority of these deaths will occur due to withdrawal of care, intensivists should be proficient in their ability to discuss end-of-life care with patients and families. While the use of advance directives to document patients' wishes has increased, their utility is uncertain. We review the effectiveness and obstacles of advance directives.

Health-related quality of life in Australian survivors of critical illness

OBJECTIVE

To document health-related quality of life of an Australian sample of intensive care unit survivors 6 months after intensive care unit discharge and compare this with preadmission health-related quality of life, health-related quality of life of national population norms, and international samples of intensive care unit survivors.

DESIGN

Prospective observational single-center study.

SETTING

Eighteen-bed medical-surgical tertiary intensive care unit of an Australian metropolitan hospital.

PATIENTS

Of the 122 eligible patients, 100 were recruited (intensive care unit length of stay >48 hrs, age >18 yrs, not imminently at risk of death) and the final sample comprised 67 patients, age (median [interquartile range], 61 yrs [49-73 yrs]), 60% male admitted to the intensive care unit for a median [interquartile range] 101 hrs (68-149 hrs). Normative age- and sex-matched Australian Short-Form 36 data from the Australian Bureau of Statistics, selected international cohorts of intensive care unit survivors, and their respective national age-matched normative data were included for comparison.

INTERVENTIONS

None.

MEASUREMENTS AND MAIN RESULTS

Sixty-seven participants provided responses to questions rating health-related quality of life (Australian Short-Form 36) at preadmission (on admission to the intensive care unit or through retrospective recall as soon as able) and 6 months after intensive care unit discharge. Ten additional participants were unable to provide study data without proxy input and were excluded from analysis. Participants reported clinically meaningful improvements in bodily pain (p = .001), social functioning (p = .03), role-emotional domains of the Short-Form 36 (p = .04), and mental component summary score (p = .01) at 6 months after intensive care unit discharge, mostly attributable to the patients undergoing cardiac surgery, whereas remaining Short-Form 36 domains showed no difference between preadmission and 6 months (p > .05). Participants reported clinically meaningful decrements in preadmission Short-Form 36 data compared with the Australian normative population with role-physical (p < .001) and physical functioning (p < .001) most affected at follow-up. Health-related quality of life in this sample was comparable with international samples of intensive care unit survivors.

CONCLUSIONS

Although the majority of health-related quality of life domains did not differ between preadmission and 6-month follow-up, participants reported significant and clinically meaningful improvements in pain and mental health at follow-up. Critical illness survivors' health-related quality of life remained within 1 sd of Australian norms at follow-up and physical function health-related quality of life was most affected. Health-related quality of life in these Australian survivors of the intensive care unit was comparable with international survivors 6 months after intensive care unit admission.

Demographic and clinical determinants of having do not resuscitate orders in the intensive care unit of a comprehensive cancer center

To understand the needs of patients and family members as physicians communicate their expectations about patients admitted to the intensive care unit (ICU), we evaluated the demographic and clinical determinants of having a Do Not Resuscitate (DNR) order for adults with cancer. Patients included were admitted from June 16, 2008-August 16, 2008, to the ICU in a comprehensive cancer center. We conducted a prospective chart review and collected data on patient demographics, length of stay, advance directives, clinical characteristics, and DNR orders. A total of 362 patients met the inclusion criteria; only 15.2% had DNR orders before ICU discharge. In the multivariate analysis, we found that medical admission was an independent predictor of having a DNR order during the ICU stay (odds ratio = 3.65; 95% confidence interval, 1.44-9.28); we also found a significant two-way interaction between race/ethnicity and type of admission (medical vs. surgical) with having a DNR order (p = .04). Although medical admissions were associated with significantly more DNR orders than were surgical admissions, we observed that the subgroup of non-white patients admitted for medical reasons was significantly less likely to have DNR orders. This finding could reflect different preferences for aggressive care by race/ethnicity in patients with cancer, and deserves further investigation.

Do-not-resuscitate orders for critically ill patients in intensive care

End-of-life decision making frequently occurs in the intensive care unit (ICU). There is a lack of information on how a do-not-resuscitate (DNR) order affects treatments received by critically ill patients in ICUs. The objectives of this study were: (1) to compare the use of life support therapies between patients with a DNR order and those without; (2) to examine life support therapies prior to and after the issuance of a DNR order; and (3) to determine the clinical factors that influence the initiation of a DNR order in ICUs in Taiwan. A prospective, descriptive, and correlational study was conducted. A total of 202 patients comprising 133 (65.8%) who had a DNR order, and 69 (34.1%) who did not, participated in this study. In the last 48 hours of their lives, patients who had a DNR order were less likely to receive life support therapies than those who did not have a DNR order. Older age, being unmarried, the presence of an adult child as a surrogate decision maker, a perceived inability to survive ultimate discharge from the ICU, and longer hospitalization in the ICU were significant predictors of issuing a DNR order for critically ill patients. This study will draw attention to how, when, and by whom, critically ill patients’ preferences about DNR are elicited and honored.

End-of-life decisions in an Indian intensive care unit

BACKGROUND

There is a paucity of data on end-of-life decisions (EOLD) for patients in Indian intensive care units (ICUs).

OBJECTIVE

To document the end-of-life and full-support (FS) decisions among patients dying in an ICU, to compare the respective patient characteristics and to describe the process of decision-making.

DESIGN

Retrospective, observational.

PATIENTS

Consecutive patients admitted to a 12-bed closed medical-surgical ICU.

EXCLUSIONS

Patients with EOLD discharged home or transferred to another hospital.

MEASUREMENTS AND RESULTS

Demographic profile, APACHE IV at 24 h, ICU outcome, type of limitation, disease category, pre-admission functional status, reasons for EOLD, interventions and therapies within 3 days of death, time to EOLD, time to death after EOLD and ICU length of stay. Out of 88 deaths among 830 admissions, 49% were preceded by EOLD. Of these 58% had withholding of treatment, 35% had do-not-resuscitate orders (DNR) and 7% had a withdrawal decision. Mean age and APACHE IV scores were similar between EOLD and FS groups. Functional dependence before hospitalization favored EOLD. Patients receiving EOLD as opposed to FS had longer stays. Fifty-three percent of limitations were decided during the first week of ICU stay well before the time of death. Escalation of therapy within 3 days of death was less frequent in the EOLD group.

CONCLUSIONS

Despite societal and legal barriers, half the patients dying in the ICU received a decision to limit therapy mostly as withholding or DNR orders. These decisions evolved early in the course of stay and resulted in significant reduction of therapeutic burdens.

Results from the national sepsis practice survey: predictions about mortality and morbidity and recommendations for limitation of care orders

Introduction

Critically ill patients and families rely upon physicians to provide estimates of prognosis and recommendations for care. Little is known about patient and clinician factors which influence these predictions. The association between these predictions and recommendations for continued aggressive care is also understudied.

Methods

We administered a mail-based survey with simulated clinical vignettes to a random sample of the Critical Care Assembly of the American Thoracic Society. Vignettes represented a patient with septic shock with multi-organ failure with identical APACHE II scores and sepsis-associated organ failures. Vignettes varied by age (50 or 70 years old), body mass index (BMI) (normal or obese) and co-morbidities (none or recently diagnosed stage IIA lung cancer). All subjects received the vignettes with the highest and lowest mortality predictions from pilot testing and two additional, randomly selected vignettes. Respondents estimated outcomes and selected care for each hypothetical patient.

Results

Despite identical severity of illness, the range of estimates for hospital mortality (5^th to 95^th percentile range, 17% to 78%) and for problems with self-care (5^th to 95^th percentile range, 2% to 74%) was wide. Similar variation was observed when clinical factors (age, BMI, and co-morbidities) were identical. Estimates of hospital mortality and problems with self-care among survivors were significantly higher in vignettes with obese BMIs (4.3% and 5.3% higher, respectively), older age (8.2% and 11.6% higher, respectively), and cancer diagnosis (5.9% and 6.9% higher, respectively). Higher estimates of mortality (adjusted odds ratio 1.29 per 10% increase in predicted mortality), perceived problems with self-care (adjusted odds ratio 1.26 per 10% increase in predicted problems with self-care), and early-stage lung cancer (adjusted odds ratio 5.82) were independently associated with recommendations to limit care.

Conclusions

The studied clinical factors were consistently associated with poorer outcome predictions but did not explain the variation in prognoses offered by experienced physicians. These observations raise concern that provided information and the resulting decisions about continued aggressive care may be influenced by individual physician perception. To provide more reliable and accurate estimates of outcomes, tools are needed which incorporate patient characteristics and preferences with physician predictions and practices.

Do-not-resuscitate orders in the critically ill patient--an observational study with special emphasis on withholding of renal replacement therapy

We examined the process, consequences and impact of writing a Do-Not-Resuscitate (DNR) order in a cohort of critically-ill ICU patients. Special emphasis was given to the DNR order including withholding renal replacement therapy. A DNR code was mainly written in the first week following ICU admission and more often given to medical, older and sicker patients. Patients never actively participated in the decision and in only half of the cases the DNR order was discussed with relatives. Mortality of all patients studied was 21% of whom 67% died with a DNR order. In our population, the final in-hospital mortality rate of DNR-coded patients was 100%, because the DNR status was ordered when the patients were already very sick. DNR-coded patients died after a longer mean length of ICU stay than patients without a code. Withholding renal replacement therapy was commonly added to the DNR order even if renal failure either was not present or never developed.

Prospective analysis of life-sustaining therapy discussions in the surgical intensive care unit: a housestaff perspective

BACKGROUND

Prospective data addressing end-of-life care in the surgical ICU are lacking. We determined factors surrounding life-sustaining therapy discussions (LSTDs) in our surgical ICU as experienced by housestaff.

STUDY DESIGN

Housestaff were interviewed daily about the occurrence of an LSTD between themselves and either a patient or surrogate. Patients for whom at least one LSTD occurred were compared with patients for whom an LSTD never occurred. Housestaff also completed a standardized questionnaire that captured events surrounding each LSTD.

RESULTS

Eighty LSTDs occurred among 50 patients. Lack of decision-making capacity (p = 0.04), age (p = 0.02), and acuity (p = 0.01) predicted independently the occurrence of an LSTD. Housestaff were significantly more likely to both report recent clinical deterioration (p < 0.01) and to assign a worse prognosis (p < 0.01) to patients for whom an LSTD occurred. Housestaff initiated the majority of LSTDs (70.0%) and usually did so because of clinical deterioration (60.7%); patient surrogates were most commonly believed to initiate LSTDs because of lack of improvement (60.1%). In no instance did a patient initiate an LSTD. For 39 of 50 patients (78.0%), changes in end-of-life care plans were eventually enacted as proposed originally. Housestaff reported that the likelihood of enactment depended on both the preexisting end-of-life care plan and the proposed change in end-of-life care plan.

CONCLUSIONS

Age, acuity, and lack of decision-making capacity were the most important factors involved in the initiation of an LSTD. Housestaff reported that they initiated LSTDs for different reasons and proposed different end-of-life care plans relative to both patients and their surrogates. These disparities can contribute to failed enactment of proposed changes in end-of-life care plans.

Use of do-not-resuscitate orders in patients with kidney disease hospitalized with acute myocardial infarction

BACKGROUND

Patients with kidney disease are at increased risk for adverse health outcomes in comparison to patients without kidney disease. Therefore, patients with kidney disease may have greater use of do-not-resuscitate (DNR) orders than patients without kidney disease in the setting of an acute illness. We examined the association between advanced kidney disease and use of DNR orders in patients admitted with an acute myocardial infarction (AMI) to all greater Worcester, MA, hospitals as part of an epidemiological study.

METHODS

Use of DNR orders in 4,033 Worcester residents hospitalized with AMI at 11 greater Worcester medical centers during 1997, 1999, 2001, and 2003 was examined. Advanced kidney disease was defined on the basis of serum creatinine level at the time of hospital admission.

RESULTS

Forty-nine percent of patients with kidney disease and AMI had a DNR order in their medical records compared with 21% of patients without kidney disease. After controlling for a variety of potentially confounding factors, patients with kidney disease were more likely to have a DNR order than patients without kidney disease (adjusted odds ratio, 1.55; 95% confidence interval, 1.21 to 1.98). Patients with advanced kidney disease who received DNR orders were older, had more comorbid conditions, and were at greater risk for dying than patients with kidney disease without a DNR order.

CONCLUSION

Advanced kidney disease is associated with greater rates of DNR orders in patients hospitalized with AMI. Awareness of kidney disease may be an important consideration for patients and health care providers in discussing the use of DNR measures.

Forgoing life sustaining treatments: differences and similarities between North America and Europe

BACKGROUND

As evidence exist that severe neurological damage or prolonged death after inappropriate CPR could occur, restraints and indications for CPR were perceived as necessary. The objective of this review is to examine policies and attitudes towards end-of-life decisions in Europe and North America and to outline differences and similarities.

METHODS

A bibliographic database search from 1990 to 2006 was performed using the following terms: do-not-resuscitate orders, end-of-life decisions, withholding/withdrawal of life-sustaining treatments, medical futility and advanced directives. Eighty-eight articles, out of 305 examined, were analyzed and their data systematically reported and compared where possible. They consisted of studies, questionnaires and surveys answering the following questions: percentage of deaths of critical patients preceded by do-not-resuscitate orders, factors affecting the decision for do-not-resuscitate orders, people involved in this decision (patient, surrogates and medical staff) and how it was performed.

RESULTS

There is an evident gap between the North American use of standard and formal procedures compared with Europe. Second, they diverge in the role acknowledged to surrogates in the decisional process, as in Europe, restraints and reserves to accept surrogates as decision makers seem still strong and a paternalistic approach at the end-of-life is still present.

CONCLUSION

Incidentally, despite the predictable differences between Europe and North America, concerns do exist about the actual extent of autonomy wished by patients and surrogates. It is important to highlight these findings, as the paternalistic attitude, too often negatively depicted, could be, according to the best medical practice, justified and more welcomed in some instances.

Factors influencing DNR decision-making in a surgical ICU

BACKGROUND

End-of-life decisions in the surgical ICU can be complicated by the unique characteristics of perioperative illness and the focus on life-extending interventions. We sought to determine whether illness severity correlated with the presence of DNR order in critically ill surgical patients.

STUDY DESIGN

All surgical ICU patients who were given a DNR order from May 1, 1991 to May 31, 1998 were identified. Demographic data for all patients were collected prospectively. Patients who died without a DNR order were compared with patients with DNR orders. Variables in the analysis included date of DNR order, age, ICU, and hospital lengths of stay, APACHE II and III scores and maximum multiple organ dysfunction scores, past medical history, and mortality. ANOVA, multivariate ANOVA, and chi-square statistical tests were used to analyze the data, with p </= 0.05 used to reject the null hypothesis.

RESULTS

Mortality for DNR patients was 84.7%. Multiple organ dysfunction syndrome was ubiquitous in this group of patients. There were no differences between DNR and no-DNR groups on the basis of age or APACHE III score or multiple organ dysfunction score. ICU lengths of stay were substantially higher in the patients made DNR, 1.8 +/- 0.1 versus 1.0 +/- 0.1, p = 0.0001, and 16.9 +/- 0.2 versus 12.1 +/- 1.2, p = 0.011, respectively. Multivariate ANOVA revealed that only past medical history predicted a DNR order.

CONCLUSIONS

Although acuity of illness and organ dysfunction consistently predicted mortality in critically ill patient populations, only elements of the past medical history were positively associated with a DNR order in critically ill surgical patients. Additional prospective studies need to be performed to determine the relative influences of physiologic, demographic, and sociologic factors on the creation of DNR orders in critically ill surgical patients.

Levels of Care in the Intensive Care Unit: A Research Program

A multidisciplinary research program on levels of care was conducted in 15 adult intensive care units in North America, Europe, and Australia. The program addressed advance directives for cardiopulmonary resuscitation, provision of advanced life support, and clinicians’ discomfort with evolving treatment plans. The results indicated that the factors that determined the establishment of directives for advance life support differed from the factors that informed a decision to limit or withdraw support after admission to an intensive care unit. In addition, clinicians’ prognoses were imprecise and often an underestimation of the probability of short-term survival. Finally, some degree of discomfort was common in care providers in the intensive care unit, most often because they thought interventions were excessive and not compatible with an acceptable future quality of life. The provision of advanced life support mandates explicit decision making about how life-support measures should be used.

Mortality predictions in the intensive care unit: comparing physicians with scoring systems

OBJECTIVE

Risk-prediction models offer potential advantages over physician predictions of outcomes in the intensive care unit (ICU). Our systematic review compared the accuracy of ICU physicians' and scoring system predictions of ICU or hospital mortality of critically ill adults.

DATA SOURCE

MEDLINE (1966-2005), CINAHL (1982-2005), Ovid Healthstar (1975-2004), EMBASE (1980-2005), SciSearch (1980-2005), PsychLit (1985-2004), the Cochrane Library (Issue 1, 2005), PubMed "related articles," personal files, abstract proceedings, and reference lists.

STUDY SELECTION

We considered all studies that compared physician predictions of ICU or hospital survival of critically ill adults to an objective scoring system, computer model, or prediction rule. We excluded studies if they focused exclusively on the development or economic evaluation of a scoring system, computer model, or prediction rule.

DATA EXTRACTION AND ANALYSIS

We independently abstracted data and assessed study quality in duplicate. We determined summary receiver operating characteristic curves and areas under the summary receiver operating characteristic curves+/-se and summary diagnostic odds ratios.

DATA SYNTHESIS

We included 12 observational studies of moderate methodological quality. The area under the summary receiver operating characteristic curves for seven studies was 0.85+/-0.03 for physician predictions compared with 0.63+/-0.06 for scoring system predictions (p=.002). Physicians' summary diagnostic odds ratios derived from the area under the summary receiver operating characteristic curves were significantly higher (12.43; 95% confidence interval 5.47, 27.11) than scoring systems' summary diagnostic odds ratios (2.25; 95% confidence interval 0.78, 6.52, p=.001). Combined results of all 12 studies indicated that physicians predict mortality more accurately than do scoring systems: ratio of diagnostic odds ratios (95% confidence interval) 1.92 (1.19, 3.08) (p=.007).

CONCLUSIONS

Observational studies suggest that ICU physicians discriminate between survivors and nonsurvivors more accurately than do scoring systems in the first 24 hrs of ICU admission. The overall accuracy of both predictions of patient mortality was moderate, implying limited usefulness of outcome prediction in the first 24 hrs for clinical decision making.