Withdrawing and withholding life support in the intensive care unit: a Spanish prospective multi-centre observational study

OBJECTIVE

To determine how frequently life support is withheld or withdrawn from adult critically ill patients, and how physicians and patients families agree on the decision regarding the limitation of life support.

DESIGN

Prospective multi-centre cohort study.

SETTING

Six adult medical-surgical Spanish intensive care units (ICUs).

PATIENTS AND PARTICIPANTS

Three thousand four hundred ninety-eight consecutive patients admitted to six ICUs were enrolled.

MEASUREMENTS AND RESULTS

Data collected included age, sex, SAPS II score on admission and within 24 h of the decision to limit treatment, length of ICU stay, outcome at ICU discharge, cause and mode of death, time to death after the decision to withhold or withdraw life support, consultation and agreement with patient's family regarding withholding or withdrawal, and the modalities of therapies withdrawn or withheld. Two hundred twenty-six (6.6%) of 3,498 patients had therapy withheld or withdrawn and 221 of them died in the ICU. Age, SAPS II and length of ICU stay were significantly higher in patients dying patients who had therapy withheld or withdrawn than in patients dying despite active treatment. The proposal to withhold or withdraw life support was initiated by physicians in 210 (92.9%) of 226 patients and by the family in the remaining cases. The patient's family was not involved in the decision to withhold or withdraw life support therapy in 64 (28.3%) of 226 cases. Only 21 (9%) patients had expressed their wish to decline life-prolonging therapy prior to ICU admission.

CONCLUSIONS

The withholding and withdrawing of treatment was frequent in critically ill patients and was initiated primarily by physicians.

A population-based study of geriatric trauma in a rural state

BACKGROUND

Urban geriatric trauma patients are known to die more often than their younger counterparts. Little is known of the fate of geriatric trauma patients in a rural environment where delays to definitive treatment are frequent. We hypothesized that rural trauma patients would do worse than their urban counterparts because of prolonged delays to definitive care.

METHODS

Five-year retrospective analysis of all trauma deaths occurring within a rural state and retrospective outcome analysis of trauma patients admitted to a tertiary care facility who were less than 55 years old (defined as young) and 55 or more years old (defined as old). Outcome analysis was performed comparing old and young rural hospitalized patients to the Major Trauma Outcome Study data set collected in major urban trauma centers.

RESULTS

Of the total trauma deaths in the state, 32.5% were old. Old patients were less likely to die at the scene of the injury than were their younger counterparts (R2 = 0.84, p < 0.001). Hospitalized old patients had a significantly higher mean Revised Trauma Score and a significantly lower Injury Severity Score, a higher complication rate, and a higher mortality rate than did hospitalized young patients. The young group had a significantly better survival (W = 0.59, Z = -3.49, p = 0.0001) than the MTOS data set, but the old group had a significantly worse survival (W = -1.8, Z = -3.49, p = 0.001).

CONCLUSION

In a rural environment, old trauma patients die more commonly in the hospital than their younger counterparts, who die more commonly at the scene. Old trauma patients who die in the hospital were less severely injured than their younger counterparts who died in the hospital. Old patients admitted to this rural trauma center have a significantly worse survival than their urban counterparts despite the fact that young rural trauma patients do significantly better than their urban counterparts. Understanding the demographics of rural geriatric trauma may be useful in allocating resources in rural trauma system design. It must be understood that despite relatively low injury severity and physiologic stability, there is a significant potential for rural geriatric trauma patients to do poorly.

Identifying futility in a paediatric critical care setting: a prospective observational study

AIMS

To determine the extent of futile care provided to critically ill children admitted to a paediatric intensive care setting.

METHODS

Prospective evaluation of consecutive admissions to a 20 bedded multidisciplinary paediatric intensive care unit of a North London teaching hospital over a nine month period. Three previously defined criteria for futility were used: (1) imminent demise futility (those with a mortality risk greater than 90% using the Paediatric Risk of Mortality (PRISM II) score); (2) lethal condition futility (those with conditions incompatible with long term survival); and (3) qualitative futility (those with unacceptable quality of life and high morbidity).

RESULTS

A total of 662 children accounting for 3409 patient bed days were studied. Thirty four patients fulfilled at least one of the criteria for futility, and used a total of 104 bed days (3%). Only 33 (0.9%) bed days were used by patients with mortality risk greater than 90%, 60 (1.8%) by patients with poor long term prognosis, and 16 (0.5%) by those with poor quality of life. Nineteen of 34 patients died; withdrawal of treatment was the mode of death in 15 (79%).

CONCLUSIONS

Cost containment initiatives focusing on futility in the paediatric intensive care unit setting are unlikely to be successful as only relatively small amounts of resources were used in providing futile care. Paediatricians are recognising futility early and may have taken ethically appropriate measures to limit care that is futile.

Withholding and withdrawal of life support in intensive-care units in France: a prospective survey. French LATAREA Group

BACKGROUND

In France, there are no guidelines available on withholding and withdrawal of life-sustaining treatments, and information on the frequency of such decisions is scarce.

METHODS

We undertook a prospective 2-month survey in 113, of a total of 220, intensive-care units (ICUs) in France to study the frequency of, and processes leading to, decisions to withhold and withdraw life-sustaining treatments.

FINDINGS

Life-supporting therapies were withheld or withdrawn in 807 (11.0%) of 7309 patients (withholding in 336 [4.6%] and withdrawal in 471 [6.4%], preceded in 358 by withholding). Of 1175 deaths in ICU, 628 (53%) were preceded by a decision to limit life-supporting therapies. Futility and poor expected quality of life were the most frequently cited reasons. Decisions were strongly correlated with the simplified acute physiological score, but an independent centre effect persisted after adjustment for this score. Decisions were mostly taken by all the ICU medical staff, with (54%) or without (34%) the nursing staff; however, a single physician made decisions in 12% of cases. The patient's family was involved in the decision-making process in 44% of cases. The patient's willingness to limit his or her own care was known in only 8% of the cases; only 0.5% of the patients were involved in decisions.

INTERPRETATION

Withholding and withdrawal of life-support therapies are widely practised in French ICUs, despite their prohibition by the French legislation. The lack of an official statement from French scientific bodies may explain several limitations on the various steps of the decision-making process.

End-of-life decisions in medical practice in Flanders, Belgium: a nationwide survey

BACKGROUND

Our study is a repeat of the Dutch death-certificate study on end-of-life decisions (ELDs). The main objective was to estimate the frequency of euthanasia (the administration of lethal drugs with the explicit intention of shortening the patient's life at the patient's explicit request), physician-assisted suicide (PAS), and other ELDs in medical practice in Flanders, Belgium.

METHODS

A 20% random sample of 3999 deaths was selected from all deaths recorded between Jan 1 and April 30, 1998. The physicians who signed the corresponding death certificates received one questionnaire by post per death.

FINDINGS

The physicians' response rate was 1355 (52%). 1925 deaths were described. The results were corrected for non-response bias, and extrapolated to estimated annual rates after seasonal adjustment for death causes, and we estimate that 705 (1.3%, 95% CI 1.0-1.6) deaths resulted from euthanasia or PAS. In 1796 (3.2%, 2.7-3.8) cases, lethal drugs were given without the explicit request of the patient. Alleviation of pain and symptoms with opioids in doses with a potential life-shortening effect preceded death in 10,416 (18.5%, 17.3-19.7) cases and non-treatment decisions in 9218 (16.4%, 15.3-17.5) cases, of which 3261 (5.8%, 5.1-6.5) with the explicit intention of ending the patient's life.

INTERPRETATION

ELDs are prominent in medical practice in Flanders. The frequency of deaths preceded by an ELD is similar to that in the Netherlands, but lower than that in Australia. However, in Flanders the rate of administration of lethal drugs to patients without their explicit request is similar to Australia, and significantly higher than that in the Netherlands.

Patient race and decisions to withhold or withdraw life-sustaining treatments for seriously ill hospitalized adults. SUPPORT Investigators. Study to Understand Prognoses and Preferences for Outcomes and Risks of Treatments

PURPOSE

Patient race is associated with decreased resource use for seriously ill hospitalized adults. We studied whether this difference in resource use can be attributed to more frequent or earlier decisions to withhold or withdraw life-sustaining therapies.

SUBJECTS AND METHODS

We studied adults with one of nine illnesses that are associated with an average 6-month mortality of 50% who were hospitalized at five geographically diverse teaching hospitals participating in the Study to Understand Prognoses and Preferences for Outcomes and Risks of Treatments (SUPPORT). We examined the presence and timing of decisions to withhold or withdraw ventilator support and dialysis, and decisions to withhold surgery. Analyses were adjusted for demographic characteristics, prognosis, severity of illness, function, and patients' preferences for life-extending care.

RESULTS

The mean (+/- SD) age of the patients was 63 +/- 16 years; 16% were African-American, 44% were women, and 53% survived for 6 months or longer. Of the 9,076 patients, 5,349 (59%) had chart documentation that ventilator support had been considered in the event the patient's condition required such a treatment to sustain life, 2,975 charts (33%) had documentation regarding major surgery, and 1,293 (14%) had documentation of discussions about dialysis. There were no significant differences in the unadjusted rates of decisions to withhold or withdraw treatment among African-Americans compared with non-African-Americans: among African-Americans, 33% had a decision made to withhold or withdraw ventilator support compared with 35% among other patients, 14% had a decision made to withhold major surgery compared with 12% among other patients, and 25% had a decision made to withhold or withdraw dialysis compared with 30% among other patients (P >0.05 for all comparisons). After adjustment for demographic characteristics, prognosis, illness severity, function, and preferences for care, there were no differences in the timing or rate of decisions to withhold or withdraw treatments among African-Americans compared with non-African-American patients.

CONCLUSION

Patient race does not appear to be associated with decisions to withhold or withdraw ventilator support or dialysis, or to withhold major surgery, in seriously ill hospitalized adults.

Forgoing life support in western European intensive care units: the results of an ethical questionnaire

OBJECTIVE

To determine current views of European intensive care physicians regarding end-of-life decisions.

DESIGN

A questionnaire was sent to all physician members of the European Society of Intensive Care Medicine. All questionnaires were anonymous.

RESULTS

A total of 504 completed questionnaires from 16 western European countries were analyzed. Eighty-seven percent of the respondents were male. Forty-six percent of respondents said that intensive care unit admissions were generally or commonly affected by bed shortages, particularly in the south. Nevertheless, 73% of units frequently admit patients with no hope of survival, although only 33% of respondents felt that such patients should be admitted. Eighty percent of respondents felt that written do-not-resuscitate orders should be applied, but only 58% did so, with a wide variation according to country (from 8% in Italy to 91% in The Netherlands). Ninety-three percent of physicians sometimes withhold treatment from patients with no hope of a meaningful life, but withdrawal of treatment is less common. Forty percent of respondents said that they would deliberately administer large doses of drugs to such patients until death ensued. Forty-nine percent of respondents involved staff, patients, and family in end-of-life decisions. Forty-five percent of respondents felt that an ethics consultation was useful in such situations. Physicians in the countries of southern Europe were less likely than those in the north to apply do-not-resuscitate orders, withhold treatment, and discuss such issues with the patients. However, they were more likely to value the opinion of an ethics consultant.

CONCLUSIONS

Intensive care unit admissions are frequently limited by the availability of beds across Europe, particularly in the south and in the United Kingdom, yet 73% of intensivists still admit patients with no hope of survival. When treating patients with no hope of survival, 40% of intensivists will deliberately administer large doses of drugs until death ensues. There are interesting differences between what a physician actually does and what he or she believes should be done with regard to various ethical questions. Important differences in attitudes also exist between European countries.

A national survey of end-of-life care for critically ill patients

In some intensive care units (ICUs), fewer patients who die now undergo attempts at cardiopulmonary resuscitation (CPR), and many more have life support actively withdrawn prior to death than did a decade ago. To determine the frequency of withdrawal of life support, we contacted every American postgraduate training program with significant clinical exposure to critical care medicine, asking them prospectively to classify patients who died into one of five mutually exclusive categories. We received data from 131 ICUs at 110 institutions in 38 states. There were 6,303 deaths, of which 393 patients were brain dead. Of the remaining 5,910 patients who died, 1,544 (23%) received full ICU care including failed cardiopulmonary resuscitation (CPR); 1,430 (22%) received full ICU care without CPR; 797 (10%) had life support withheld; and 2,139 (38%) had life support withdrawn. There was wide variation in practice among ICUs, with ranges of 4 to 79%, 0 to 83%, 0 to 67%, and 0 to 79% in these four categories, respectively. Variation was not related to ICU type, hospital type, number of admissions, or ICU mortality. We conclude that limitation of life support prior to death is the predominant practice in American ICUs associated with critical care training programs. There is wide variation in end-of-life care, and efforts are needed to understand practice patterns and to establish standards of care for patients dying in ICUs.

An audit of treatment withdrawal in one hundred patients on a general ICU

The audit found that 72.6% of patients who died had treatment withdrawn. Three organ failures were most often present in patients when treatment was withdrawn. Withdrawal of treatment did not mean the cessation of care. Variation in involvement was demonstrated with different consultants.

Withholding and withdrawing dialysis: the role of physician specialty and education and patient functional status

Withholding and withdrawing dialysis are subjects of major concern to nephrologists, because both result in a significant number of end-stage renal disease (ESRD) patient deaths. The medical literature on withholding dialysis is extremely limited, and that on withdrawing dialysis consists mainly of retrospective studies from the 1980s. The present study was conducted to identify ways to improve dialysis decision making by providing a current understanding of how decisions to withhold or withdraw dialysis are being made and by examining whether some patients who might benefit from dialysis are not being referred. In 1995, 22 of 27 (82%) nephrologists practicing in West Virginia agreed to participate in a year-long prospective study in which they completed forms on each patient from whom they withheld or withdrew dialysis. Seventy-six of a random sample of 214 (36%) primary care physicians returned questionnaires describing their practice experience in 1995 with patients with advanced chronic renal failure. The nephrologists withdrew dialysis from 60 of 822 (7%) patients. Academic nephrologists who had received education in the ethics and law of stopping dialysis withdrew it from a greater percentage of patients than those in private practice (12% v 6%; P = 0.009). Patients who were withdrawn more often resided in nursing homes (37% v 2%; P < 0.0001). Twenty-one patients (37%) lacked decision-making capacity at the time the decision was made to withdraw dialysis. Advance directives were available for 13 of the 21 (62%) patients: eight of the 10 treated by academic nephrologists and five of the 11 treated by private practice nephrologists. Academic nephrologists found advance directives to be helpful in decision making to withdraw dialysis of incapacitated patients more often than nephrologists in private practice (70% v 9%; P = 0.004). Nephrologists withheld dialysis from 25 of 357 (7%) ESRD patients compared with 42 of 193 (22%) withheld by primary care physicians (P < 0.001). In deciding not to refer a patient for a dialysis evaluation, 25% of primary care physicians did not consult a nephrologist; 60% cited age as a reason not to refer. These findings suggest that dialysis decision making might be improved by educating nephrologists about the ethics and law of withdrawing dialysis and about how to implement successfully advance care planning so that advance directives will be present and helpful when decisions need to be made for incapacitated dialysis patients. Education of primary care physicians about when to refer patients with chronic renal failure for a dialysis evaluation might also result in more referrals for patients who will benefit from dialysis.

Withdrawal and withholding of life support in the intensive care unit: a comparison of teaching and community hospitals. The Southwestern Ontario Critical Care Research Network

OBJECTIVES

To compare the incidence of withdrawal or withholding of life support (WD/WHLS), and to identify similarities and differences in the process of the withdrawal of life support (WDLS) between teaching and community hospitals' intensive care units (ICUs).

DESIGN

Prospective cohort study, with some data obtained by retrospective chart review.

SETTING

The ICUs of three teaching hospitals and six community hospitals.

PATIENTS

All patients who died in these nine ICUs over a 6-mo period.

INTERVENTIONS

None.

MEASUREMENTS AND MAIN RESULTS

Data on admitting diagnosis, cause of death, mode of death (death despite active treatment, withdrawal or withholding of life support), those initiating and involved in WDLS, and modalities of life support withdrawn were gathered for patients dying in the ICU over a 6-mo period. One hundred sixty patients in community hospitals and 292 in teaching hospitals died in their respective ICUs over the 6-mo period. We found a difference in the distribution of mode of death between community hospitals and teaching hospitals, resulting from a greater proportion of patients dying as a result of withholding life support in community hospitals (11.9% vs. 3.8% withheld, respectively, p = .004). Among the six community hospitals and three teaching hospitals, we found a difference in the proportion of patients dying despite active treatment compared with those dying as a result of WD/WHLS (p = .042 and p = .044, respectively). Initiation of WDLS by physicians was more frequent at teaching hospitals (81% vs. 61%, p = .0005), while families more commonly initiated WDLS at community hospitals (34% vs. 19%, p = .005). A greater proportion of patients in teaching hospitals were receiving mechanical ventilation (99% vs. 89%) and vasopressors (76% vs. 65%) before WDLS. Similar proportions had mechanical ventilation withdrawn (68% and 74%, community hospitals and teaching hospitals, respectively), while there was a trend for fewer patients in community hospitals to have vasopressors withdrawn (56% vs. 70%, p = .082). The time to death after WDLS had begun was longer in community hospitals compared with teaching hospitals (0.74 +/- 1.38 days vs. 0.27 +/- 0.79 [SD] days, p = .0028).

CONCLUSIONS

The incidence of WD/WHLS was similar in community hospitals and teaching hospitals; however, withholding of life support was more common in community hospitals. The process of WDLS appears to differ between community hospitals and teaching hospitals.

A study of proactive ethics consultation for critically and terminally ill patients with extended lengths of stay

OBJECTIVE

To assess the effect of proactive ethics consultation on documented patient care communications and on decisions regarding high-risk intensive care unit (ICU) patients.

DESIGN

Prospective, controlled study.

PATIENTS

Ninety-nine ICU patients treated with >96 hrs of continuous mechanical ventilation.

INTERVENTIONS

Three groups were compared: a) a baseline group enrolled in the study prior to the establishment of the hospital's ethics consultation service; b) a control group where ethics consultation was at the option of the care team; and c) a treatment group where the ethics service intervened proactively after patients received >96 hrs of continuous mechanical ventilation. Patient care planning, for subjects in the proactive group, was reviewed with physicians and with the care team using a standardized set of prompting questions designed to focus discussion of key decision-making and communication issues for critically and terminally ill patients. Issues and concerns were identified and action strategies were suggested to those in charge of the patient's care. Formal ethics consultation, using a patient care conference model, was made available upon request.

MEASUREMENTS AND MAIN RESULTS

Post discharge chart reviews of the three groups indicated no statistically significant differences on important demographic variables including age, gender, and acuity. Comparisons of survivors and nonsurvivors for the three groups indicated, at statistically significant levels, more frequent and documented communications, more frequent decisions to forego life-sustaining treatment, and reduced length of stay in the ICU for the proactive consultation group.

CONCLUSION

Proactive ethics consultation for high-risk patient populations offers a promising approach to improving decision-making and communication and reducing length of ICU stay for dying patients.

Retrospective study of doctors' "end of life decisions" in caring for mentally handicapped people in institutions in The Netherlands

OBJECTIVES

To gain insight into the reasons behind and the prevalence of doctors' decisions at the end of life that might hasten a patient's death ("end of life decisions") in institutions caring for mentally handicapped people in the Netherlands, and to describe important aspects of the decisions making process.

DESIGN

Survey of random sample of doctors caring for mentally handicapped people by means of self completed questionnaires and structured interviews.

SUBJECTS

89 of the 101 selected doctors completed the questionnaire. 67 doctors had taken an end of life decision and were interviewed about their most recent case.

MAIN OUTCOME MEASURES

Prevalence of end of life decisions; types of decisions; characteristics of patients; reasons why the decision was taken; and the decision making process.

RESULTS

The 89 doctors reported 222 deaths for 1995. An end of life decision was taken in 97 cases (44%); in 75 the decision was to withdraw or withhold treatment, and in 22 it was to relieve pain or symptoms with opiates in dosages that may have shortened life. In the 67 most recent cases with an end of life decision the patients were mostly incompetent (63) and under 65 years old (51). Only two patients explicitly asked to die, but in 23 cases there had been some communication with the patient. In 60 cases the doctors discussed the decision with nursing staff and in 46 with a colleague.

CONCLUSIONS

End of life decisions are an important aspect of the institutionalised care of mentally handicapped people. The proportion of such decisions in the total number of deaths is similar to that in other specialties. However, the discussion of such decisions is less open in the care of mental handicap than in other specialties. Because of distinctive features of care in this specialty an open debate about end of life decisions should not be postponed.

Euthanasia, physician-assisted suicide, and other medical practices involving the end of life in the Netherlands, 1990-1995

BACKGROUND

In 1991 a new procedure for reporting physician-assisted deaths was introduced in the Netherlands that led to a tripling in the number of reported cases. In 1995, as part of an evaluation of this procedure, a nationwide study of euthanasia and other medical practices concerning the end of life was begun that was identical to a study conducted in 1990.

METHODS

We conducted two studies, the first involving interviews with 405 physicians (general practitioners, nursing home physicians, and clinical specialists) and the second involving questionnaires mailed to the physicians attending 6060 deaths that were identified from death certificates. The response rates were 89 percent and 77 percent, respectively.

RESULTS

Among the deaths studied, 2.3 percent of those in the interview study and 2.4 percent of those in the death-certificate study were estimated to have resulted from euthanasia, and 0.4 percent and 0.2 percent, respectively, resulted from physician-assisted suicide. In 0.7 percent of cases, life was ended without the explicit, concurrent request of the patient. Pain and symptoms were alleviated with doses of opioids that may have shortened life in 14.7 to 19.1 percent of cases, and decisions to withhold or withdraw life-prolonging treatment were made in 20.2 percent. Euthanasia seems to have increased in incidence since 1990, and ending of life without the patient's explicit request to have decreased slightly. For each type of medical decision except those in which life-prolonging treatment was withheld or withdrawn, cancer was the most frequently reported diagnosis.

CONCLUSIONS

Since the notification procedure was introduced, end-of-life decision making in the Netherlands has changed only slightly, in an anticipated direction. Close monitoring of such decisions is possible, and we found no signs of an unacceptable increase in the number of decisions or of less careful decision making.

Limitation of life support: frequency and practice in a London and a Cape Town intensive care unit

OBJECTIVES

To examine the frequency of limiting (withdrawing and withholding) therapy in the intensive care unit (ICU), the grounds for limiting therapy, the people involved in the decisions, the way the decisions are implemented and the patient outcome.

DESIGN

Prospective survey. Ethical approval was obtained.

SETTING

ICUs in tertiary centres in London and Cape Town.

PATIENTS

All patients who died or had life support limited.

INTERVENTIONS

Data collection only.

RESULTS

There were 65 deaths out of 945 ICU discharges in London and 45 deaths out of 354 ICU discharges in Cape Town. Therapy was limited in 81.5% and 86.7% respectively (p = 0.6) of patients who died. The mean ages of patients whose therapy was limited were 60.2 years and 51.9 years (p = 0.014) and mean APACHE II scores 18.5 and 22.6 (p = 0.19) respectively. The most common reason for limiting therapy in both centres was multiple organ failure. Both medical and nursing staff were involved in most decisions, which were only implemented once wide consensus had been reached and the families had accepted the situation. Inotropes, ventilation, blood products, and antibiotics were most commonly withdrawn. The mean time from admission to the decision to limit therapy was 11.2 days in London and 9.6 days in Cape Town. The times to outcome (death in all patients) were 13.2 h and 8.1 h respectively.

CONCLUSIONS

Withdrawal of therapy occurred commonly, most often because of multiple organ failure. Wide consensus was reached before a decision was made, and the time to death was generally short.

Community attitudes on the family of issues surrounding the death of terminal patients

In two studies, respondents made recommendations for the medical treatment of a terminally ill elderly woman. The woman was or was not experiencing intractable pain, and had requested either heroic medical efforts or euthanasia. Respondents' recommendations were influenced by both the specific wishes of the patient and the pain the person was experiencing. However, participants were not completely swayed by the patient's wishes: only about half of the sample recommended euthanasia even when the patient was in intractable pain and had requested death; also, many subjects would not resuscitate the patient whose heart or lungs failed, even though she had requested heroic measures. Respondent attitudes toward euthanasia predicted recommendations in the expected directions. We suggest that there is less dissent on the issues that arise for medical treatments at the end of life than has been widely assumed.

Medical specialists prefer to withdraw familiar technologies when discontinuing life support

OBJECTIVE

To assess how members of different specialties vary in their decisions about which form of life support to withdraw. The hypothesis was that each specialty would be more comfortable withdrawing its "own" form of life support relative to other forms and other specialties.

DESIGN

Mail survey.

SETTING

24 medical centers.

PARTICIPANTS

225 specialists in six specialties and 225 comparison physicians randomly matched according to percentage of time devoted to clinical practice.

MEASUREMENTS

The six specialties were linked with six life-sustaining technologies related to their special expertise: 1) pulmonologists with mechanical ventilation, 2) nephrologists with hemodialysis, 3) gastroenterologists with tube feedings, 4) hematologists with blood products, 5) cardiologists with intravenous vasopressors, and 6) infectious disease specialists with antibiotics. The subjects ranked different forms of life support in the order in which they would prefer to withdraw them. They also expressed their preferences in response to hypothetical clinical vignettes.

RESULTS

In five of the six specialties, the specialists had a relative preference for withdrawing their "own" form of life support, compared with the preferences of the comparison physicians. Overall, the physicians tended to prefer withdrawing a form of life support closely linked with their own specialty.

CONCLUSIONS

Just as some specialist physicians tend to reach for different technologies first in treating patients, they also tend to reach for different technologies first when ceasing treatment. Specialists' preferences for different ways to withdraw life support not only may reflect a special understanding of the limits of certain technologies, but also may reveal how ingrained are physicians' patterns of practice.

Decisions to limit or continue life-sustaining treatment by critical care physicians in the United States: conflicts between physicians' practices and patients' wishes

We surveyed a national sample of 879 physicians practicing in adult intensive care units in the United States, in order to determine their practices with regard to limiting life-sustaining medical treatment, and particularly their decisions to continue or forgo life support without the consent or against the wishes of patients or surrogates. Virtually all of the respondents (96%) have withheld and withdrawn life-sustaining medical treatment on the expectation of a patient's death, and most do so frequently in the course of a year. Many physicians continue life-sustaining treatment despite patient or surrogate wishes that it be discontinued (34%), and many unilaterally withhold (83%) or withdraw (82%) life-sustaining treatment that they judge to be futile. Some of these decisions are made without the knowledge or consent of patients or their surrogates, and some are made over their objections. We conclude that physicians do not reflexively accept requests by patients or surrogates to limit or continue life-sustaining treatment, but place these requests alongside a collection of other factors, including assessments of prognosis and perceptions of other ethical, legal, and policy guidelines. While debate continues about the ethical and legal foundations of medical futility, our results suggest that most critical care physicians are incorporating some concept of medical futility into decision making at the bedside.

The clinical management of dying patients receiving mechanical ventilation. A survey of physician practice

OBJECTIVE

Despite mechanical ventilation's widespread use, there is scant literature to guide the management of patients receiving mechanical ventilatory assistance who are foregoing life-sustaining treatment. This survey was conducted to characterize physician treatment of such patients.

DESIGN

Surveys were mailed to 513 randomly selected critical care physicians and returned by 308 (60 percent); 273 respondents were involved in ventilator management; all others were excluded.

PARTICIPANTS

Forty percent of respondents were internists, 28 percent were surgeons, 16 percent were pediatricians, and 11 percent were anesthesiologists; 85 percent of physicians were board eligible/certified in a critical care subspecialty.

RESULTS

Fifteen percent of respondents almost never withdrew ventilators from dying patients foregoing life-sustaining treatment; 37 percent did so less than half the time. Twenty-six percent of physicians believed there was a moral difference between withholding and withdrawing ventilators. Of physicians who withdrew ventilators, 33 percent preferred terminal weaning, 13 percent preferred extubation, and the remainder used both methods. Reasons for preferring extubation included the directness of the action (72 percent), family perceptions (34 percent), and patient comfort (34 percent). Reasons for preferring terminal weaning included patient comfort (65 percent), family perceptions (63 percent), and the belief that terminal weaning was less active (49 percent). Morphine and benzodiazepines were used frequently by 74 percent (morphine) and 53 percent (benzodiazepines) of physicians when withdrawing ventilators; 6 percent used paralytics at least occasionally.

CONCLUSIONS

There is significant variation in the care of dying patients receiving mechanical ventilatory assistance, with 15 percent of respondents almost never withdrawing ventilators from such patients. Two very different methods of ventilator withdrawal each have advocates, yet rationales of patient comfort and family perceptions are matters of individual experience, absent published studies. The occasional use of paralytics during ventilator withdrawal raises concern about current practice.

Modes of death in the pediatric intensive care unit: withdrawal and limitation of supportive care

OBJECTIVE

To determine the frequency of withdrawal or limitation of supportive care for children dying in a pediatric intensive care unit (ICU).

DESIGN

Retrospective review of medical records.

SETTING

Pediatric ICU in a tertiary care children's hospital.

PATIENTS

All children dying in the pediatric ICU over a 54-month period (n = 300).

INTERVENTIONS

Medical record review.

MEASUREMENTS AND MAIN RESULTS

Data recorded for each patient included diagnosis, mode of death, and whether the child was brain dead. Each patient was assigned to one of the following mode of death categories: brain dead; active withdrawal of supportive care (meaning removal of the endotracheal tube); failed cardiopulmonary resuscitation; allowed to die without cardiopulmonary resuscitation (do-not-resuscitate status). A total of 300 patients were identified. Diagnoses included postoperative congenital heart disease (n = 56), head trauma (n = 38), near-miss sudden infant death syndrome (n = 28), pneumonia (n = 22), sepsis (n = 21), near-drowning (n = 21), various anoxic insults (n = 20), multiple trauma (n = 17), and patients with other diagnoses (n = 77). Mode of death was active discontinuation of support in 95 (32%) patients, do-not-resuscitate status in 78 (26%), brain death in 70 (23%), and failed cardiopulmonary resuscitation in 57 (19%).

CONCLUSIONS

In a large, multidisciplinary pediatric ICU, the most common mode of death was active withdrawal of support. In addition, more than half (173/300, 58%) of children dying in the pediatric ICU underwent either active withdrawal or limitation (do-not-resuscitate status) of supportive care.