PubMed Health⌕ Search

Biomedical subjects

Mitchell M Levy

Publications and source records attributed to Mitchell M Levy.

At least 19 recordsLinked to original sources

A view from the other side.

OBJECTIVE: The environment in our intensive care units (ICUs) often serves the convenience of the staff who work in the ICU, rather than the critically ill patients and their loved ones who are, as a family unit, the objects of our care. OBSERVATIONS: Critically ill patients, especially those with high acuity, require close bedside attention. Continuous monitoring, frequent physical evaluations, invasive procedures, and other demands of bedside care are just some of the processes in the ICU that require heightened attention from ICU clinicians. But the fact that we "have a lot to do" at the bedside of critically ill patients has led to an unfortunate environment in many ICUs, one in which the needs of families are not only considered secondary to the convenience of ICU personnel, but are frequently dismissed as burdensome, unreasonable, and even counter to good-quality patient care. Perhaps this is why there are reports in the literature of family concerns about less than satisfactory interactions with ICU clinicians. The attitude we have toward families is an important part of the care we offer to patients in the ICU, and it can have a profound effect on the health of our patients' families. In palliative care circles, it has long been understood that the "unit of care" is both the patient and the family. Although we are moving in that direction in critical care, many ICUs may not always reflect an appreciation of the therapeutic potential or devastating consequences of the attitudes in the ICU. CONCLUSION: The evolution of our understanding of care for critical illness should include a different approach to families and visiting hours in the ICU. One that balances the need of family members to be with their loved ones at a time of critical illness and the need of ICU clinicians to conduct efficient bedside care.

Critical Illness↗

Visiting hours policies in New England intensive care units: strategies for improvement.

OBJECTIVE: Dying patients often feel isolated and alone, and restricted visiting hours in the intensive care unit (ICU) has been shown to increase anxiety and dissatisfaction in both critically ill patients and their families. Unrestricted visiting has been identified as a top-ten need by families of patients in the ICU. Because emotional distress experienced by patients and families may persist well beyond the ICU stay, an open visiting policy, by meeting the needs of patients and families, may improve the quality of end-of-life care in the ICU. This two-part study included a survey to determine the visiting hours policies of New England-area hospital ICUs, and nursing focus groups to describe challenges and barriers that nursing staff working in an open ICU have experienced and to provide solutions that will facilitate implementation of an open visiting hours policy. DESIGN: Two-part study: survey and focus groups. SETTING: ICUs in New England and one medical ICU in a tertiary care hospital. SUBJECTS: Registered nurses employed in medical ICUs. INTERVENTIONS: Adult ICUs in the six New England states were located using a library listing of all regional hospitals. A telephone questionnaire interview was used to ascertain visiting hours policies in each ICU. Six focus-group sessions were conducted with nursing staff who work in an urban, northeastern ICU with 8 yrs of experience with an unrestricted visiting hours policy. MEASUREMENTS AND MAIN RESULTS: A total of 171 hospitals completed the questionnaire (96%). From all ICUs surveyed, 62 (32%) had unrestricted, open visiting hours. Out of these, 57 (92%) were medical ICUs or mixed medical/surgical ICUs. Nursing staff identified three major areas of concern with an open visiting hours policy: space, conflict, and burden. Strategies for resolution that are either employed or advocated by nursing staff are described. CONCLUSIONS: The majority of ICUs in New England have restricted visiting hours. Only one third of ICUs have open visiting policies. Nursing concerns with an unrestricted ICU were identified and solutions were offered that may provide guidance for other ICUs considering adopting an open visiting hours policy.

Focus Groups↗

Rationing in the intensive care unit.

BACKGROUND: Critical care services represent a large and growing proportion of health care expenditures. Limiting the magnitude of these costs while maintaining a just allocation of these services will require rationing. We define rationing as "the allocation of healthcare resources in the face of limited availability, which necessarily means that beneficial interventions are withheld from some individuals." Although some have maintained that rationing of health care is unethical, we argue that rationing is not only unavoidable but essential to ensuring the ethical distribution of medical goods and services. PRINCIPAL FINDINGS: Intensivists have little to guide them in the rationing of critical care services. We have developed a taxonomy of the rationing choices faced by intensivists as a framework for ethical analysis. This taxonomy divides rationing decisions into three categories. First are those rationing decisions that may be justified by external constraints (such as not prescribing a potentially beneficial medication because it is not available on the hospital formulary). Second are those that may be justified by reference to clinical guidelines (as, for example, not prescribing a potentially beneficial medication because a valid guideline recommends treatment with a less expensive alternative). Third are those that are justified by individual clinical judgment (such as choosing which of two patients should be admitted into the last ICU bed, in the absence of any evidence-based guidance). Judgments made on the basis of clinical judgment deserve particular scrutiny, since they may mask unethical prejudices or bias. CONCLUSIONS: Although this taxonomy does not by itself determine which decisions are ethical, it does clarify the type of evidence that is appropriate to supporting the decision that is made. Additional work is needed to elucidate how both empirical evidence and ethical analysis can further inform the rationing decisions that arise in the taxonomy described here.

Health Care Rationing↗

End-of-life care for the critically ill: A national intensive care unit survey.

OBJECTIVE: One in five Americans dies following treatment in an intensive care unit (ICU), and evidence indicates the need to improve end-of-life care for ICU patients. We conducted this study to elicit the views and experiences of ICU directors regarding barriers to optimal end-of-life care and to identify the type, availability, and perceived benefit of specific strategies that may improve this care. DESIGN: Self-administered mail survey. SETTING: Six hundred intensive care units. PARTICIPANTS: A random, nationally representative sample of nursing and physician directors of 600 adult ICUs in the United States. INTERVENTIONS: Mail survey. MEASUREMENTS AND MAIN RESULTS: We asked participants about barriers to end-of-life care (1 = huge to 5 = not at all a barrier), perceived benefit of strategies to improve end-of-life care, and availability of these strategies. From 468 ICUs (78.0% of sample), 590 ICU directors participated (406 nurses [65.1% response] and 184 physicians [31.7% response]). Respondents had a mean of 16.6 yrs (sd 7.6 yrs) of ICU experience. Important barriers to better end-of-life care included patient/family factors, including unrealistic patient/family expectations 2.5 (1.0), inability of patients to participate in discussions 2.7 (0.9), and lack of advance directives 2.9 (1.0); clinician factors, which included insufficient physician training in communication 2.9 (1.1) and competing demands on physicians' time 3.0 (1.1); and institution/ICU factors, such as suboptimal space for family meetings 3.5 (1.2) and lack of a palliative care service 3.4 (1.2). More than 80% of respondents rated 14 of 14 strategies as likely to improve end-of-life care, including trainee role modeling by experienced clinicians, clinician training in communication and symptom management, regular meetings of senior clinicians with families, bereavement programs, and end-of-life care quality monitoring. However, few of these strategies were widely available. CONCLUSIONS: Intensive care unit directors perceive important barriers to optimal end-of-life care but also universally endorse many practical strategies for quality improvement.

Attitude of Health Personnel↗

Proposed quality measures for palliative care in the critically ill: a consensus from the Robert Wood Johnson Foundation Critical Care Workgroup.

For critically ill patients and their loved ones, high-quality health care includes the provision of excellent palliative care. To achieve this goal, the healthcare system needs to identify, measure, and report specific targets for quality palliative care for critically ill or injured patients. Our objective was to use a consensus process to develop a preliminary set of quality measures to assess palliative care in the critically ill. We built on earlier and ongoing efforts of the Robert Wood Johnson Foundation Critical Care End-of-Life Peer Workgroup to propose specific measures of the structure and process of palliative care. We used an informal iterative consensus process to identify and refine a set of candidate quality measures. These candidate measures were developed by reviewing previous literature reviews, supplementing the evidence base with recently published systematic reviews and consensus statements, identifying existing indicators and measures, and adapting indicators from related fields for our objective. Among our primary sources, we identified existing measures from the Voluntary Hospital Association's Transformation of the ICU program and a government-sponsored systematic review performed by RAND Health to identify palliative care quality measures for cancer care. Our consensus group proposes 18 quality measures to assess the quality of palliative care for the critically ill and injured. A total of 14 of the proposed measures assess processes of care at the patient level, and four measures explore structural aspects of critical care delivery. Future research is needed to assess the relationship of these measures to desired health outcomes. Subsequent measure sets should also attempt to include outcome measures, such as patient or surrogate satisfaction, as the field develops the means to rigorously measure such outcomes. The proposed measures are intended to stimulate further discussion, testing, and refinement for quality of care measurement and enhancement.

Continuity of Patient Care↗

End-of-life care in the intensive care unit: state of the art in 2006.

Evidence suggests that change is occurring in end-of-life care in the intensive care unit (ICU). There is a growing need and appreciation for the importance of education for the multidisciplinary team, but particularly for physicians, in gaining communication skills to improve the quality of end-of-life care and provide palliative care in the ICU. Studies have indicated that families are unhappy with the communication they receive when a family member is in the ICU. Evidence also suggests that families want to be involved in decisions about their loved one's care. Interventions have been tested in numerous ICUs that others can evaluate for application to their own facility in an attempt to create a global standard for end-of-life care in the ICU. Quality indicators have been defined, and an audit tool can help assess levels of performance.

Communication↗

International differences in end-of-life attitudes in the intensive care unit: results of a survey.

BACKGROUND: Important international differences exist in attitudes toward end-of-life issues in the intensive care unit. METHODS: A simple questionnaire survey was sent by e-mail to participants at an international meeting on intensive care medicine. Respondents were asked to choose 1 of 3 to 5 possible answers for each of 4 questions related to the treatment of a hypothetical patient in a vegetative state due to anoxic encephalopathy after cardiac arrest with no family and no advance directives. RESULTS: From 3494 valid addresses, 1961 complete questionnaires (56%) were received from 21 countries. Sixty-two percent of physicians from Northern and Central Europe said they involved nurses in end-of-life discussions compared with only 32% of physicians in Southern Europe, 38% in Brazil, 39% in Japan, and 29% in the United States (P<.001 for all comparisons). Written do-not-resuscitate orders were preferred in Northern and Central Europe, whereas oral orders took preference in Southern Europe, Turkey, and Brazil. One third of Japanese physicians said that they would not apply do-not-resuscitate orders. Most participants from Japan, Turkey, the United States, Southern Europe, and Brazil chose to treat the hypothetical patient with antibiotics if he/she developed septic shock, whereas in Northern Europe, Central Europe, Canada, and Australia, terminal withdrawal of mechanical ventilation and extubation were the more commonly chosen responses. CONCLUSIONS: In countries where intensive care medicine is relatively well developed, considerable differences remain in physicians' attitudes toward end-of-life care in the intensive care unit. Substantial work remains if an international consensus on these issues is to be reached.

Attitude to Death↗

Early changes in organ function predict eventual survival in severe sepsis.

OBJECTIVE: Early identification and treatment of severe sepsis can significantly reduce mortality rate. We hypothesized that a risk prediction model based on early (baseline to day 1 of study) response to standard care should be significantly related to 28-day survival. DESIGN: Analysis of organ dysfunction data from two placebo-controlled severe sepsis trials (PROWESS and secretory phospholipase A2 inhibitor trials). SETTING: Research laboratory. PATIENTS: The placebo arms of two randomized, double-blind sepsis trials were combined (n = 1036). These patients met criteria for severe sepsis and received supportive standard intensive care and fluid resuscitation. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: Sequential Organ Failure Assessment (SOFA) scores were calculated daily using the most aberrant physiologic or laboratory variables. Baseline and post-baseline SOFA scores categorized as improved, unchanged, or worsened were used in regression analyses correlating organ dysfunction changes with 28-day mortality. Improvement in cardiovascular (p = .0010), renal (p < .0001), or respiratory (p = .0469) function from baseline to day 1 was significantly related to survival. Odds ratios (95% confidence intervals) associated with improved vs. worsened respiratory, cardiovascular, or renal function before start of day 1 were 0.56 (0.35-0.91), 0.33 (0.18-0.59), and 0.30 (0.17-0.52), respectively. Continued improvement in cardiovascular function before start of day 2 and start of day 3 was associated with further improvement in survival (p <. 0001), with odds ratios of 0.15 (0.06-0.39) and 0.11 (0.04-0.31) for patients who improved compared with those who worsened. No other organ system was retained in the model, and improvement beyond day 1 in any other organ function did not add to the model's predictive power. CONCLUSIONS: These analyses suggest that outcomes for patients with severe sepsis are closely related to early (baseline to day 1 here) improvement, or lack thereof, in organ function. Also, clinical improvement on subsequent days may have little additional impact on the likelihood of survival.

Adult↗

A descriptive evaluation of transfusion practices in patients receiving mechanical ventilation.

STUDY OBJECTIVES: To characterize and compare transfusion practices in a broad sample of patients receiving mechanical ventilation (MV) and not receiving MV in the ICU. DESIGN: Retrospective subgroup analysis from the prospective, multicenter, observational CRIT study. SETTING: Two hundred eighty-four medical, surgical, or medical/surgical ICUs. PATIENTS: Critically ill adults. MAIN RESULTS: Of the 4,892 patients enrolled in the CRIT study, 60% were receiving MV on ICU admission or within 48 h after admission for a median of 4 days. Patients receiving MV had higher baseline APACHE (acute physiology and chronic health evaluation) II scores than patients not receiving MV (22.8 +/- 7.8 and 14.9 +/- 6.4, respectively [mean +/- SD]; p < 0.0001). Despite similar baseline hemoglobin levels (11.0 +/- 2.3 g/dL and 10.9 +/- 2.5 g/dL, p = 0.17), more patients receiving MV underwent transfusions (49% vs 33%, p < 0.0001), and they received significantly more RBCs than patients not receiving MV (p < 0.0001). The principal reason for transfusion in both groups was low hemoglobin level (78.4% and 84.6%, respectively); however, patients receiving MV had higher pretransfusion hemoglobin levels (8.7 +/- 1.7 g/dL) than patients not receiving MV (8.2 +/- 1.7 g/dL, p < 0.0001). Notably, 40.1% of all transfusions in patients receiving MV were administered after day 3 of the ICU stay, compared to 21.2% in patients not receiving MV (p < 0.0001), and a higher percentage of patients receiving MV remaining in the ICU after day 3 underwent transfusions (33.4% vs 18.3%, p < 0.0001). Mortality was higher (17.2% vs 4.5%, p < 0.0001) and mean hospital (15 days vs 10 days, p < 0.0001) and ICU stays (9 days vs 4 days, p < 0.0001) were longer in the subgroup receiving MV. CONCLUSIONS: Mechanical ventilation appears to be an easily identifiable early marker for allogeneic blood exposure risk in ICU patients. While the longer ICU stays account for much of this risk, patients receiving MV also appear to undergo transfusions at higher hemoglobin thresholds than patients not receiving MV, at least early in the ICU stay. Justification of this relatively liberal transfusion practice in patients receiving MV will require further study.

APACHE↗

Pathophysiology of oxygen delivery in respiratory failure.

Complex physiologic interactions exist between oxygenation, hemoglobin, and cardiac output (Qt) in critically ill patients with respiratory failure. When any or all of these three critical factors fail, clinicians are challenged to support oxygen delivery (DO(2)) in order to avoid tissue hypoxia, end-organ damage, and high mortality rates. Many of the interventions performed to improve DO(2), including mechanical ventilation, blood transfusions, fluid management, and invasive monitoring of cardiac function, are accompanied by serious risks that can exacerbate the pathology of DO(2). This article provides an overview of oxygenation, hemoglobin, and Qt in patients with respiratory failure and highlights some of the current research that seeks safe and effective ways to improve DO(2) in these patients.

Blood Transfusion↗

Clinical issues and research in respiratory failure from severe acute respiratory syndrome.

The National Heart, Lung, and Blood Institute, along with the Centers for Disease Control and Prevention and the National Institute of Allergy and Infectious Diseases, convened a panel to develop recommendations for treatment, prevention, and research for respiratory failure from severe acute respiratory syndrome (SARS) and other newly emerging infections. The clinical and pathological features of acute lung injury (ALI) from SARS appear indistinguishable from ALI from other causes. The mainstay of treatments for ALI remains supportive. Patients with ALI from SARS who require mechanical ventilation should receive a lung protective, low tidal volume strategy. Adjuvant treatments recommended include prevention of venous thromboembolism, stress ulcer prophylaxis, and semirecumbent positioning during ventilation. Based on previous experience in Canada, infection control resources and protocols were recommended. Leadership structure, communication, training, and morale are an essential aspect of SARS management. A multicenter, placebo-controlled trial of corticosteroids for late SARS is justified because of widespread clinical use and uncertainties about relative risks and benefits. Studies of combined pathophysiologic endpoints were recommended, with mortality as a secondary endpoint. The group recommended preparation for studies, including protocols, ethical considerations, Web-based registries, and data entry systems.

Adrenal Cortex Hormones↗

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

PURPOSE: Setting treatment goals in the intensive care unit (ICU) often involves resuscitation decisions. Our objective was to study the rate of establishing do-not-resuscitate (DNR) directives, determinants, and outcomes of those directives for mechanically ventilated patients. METHODS: In a multicentre observational study, we included consecutive adults with no DNR directives within 24 hr of ICU admission who were mechanically ventilated for at least 48 hr. We identified the rate with which DNR directives were established, and factors associated with these directives. RESULTS: Among 765 patients, DNR directives were established for 231 (30.2%) patients; 143 (62.1%) of these were established within the first week. Factors independently associated with a DNR directive were: patient age [> or = 75 yr (hazard ratio [HR] 2.3, 95% confidence interval 1.5-3.4], 65 to 74 yr (HR 1.8, 1.2-2.7), 50 to 64 yr (HR 1.4, 1.0-2.2) relative to < 50 yr); medical rather than surgical diagnosis (HR 1.8, 1.3-2.5); multiple organ dysfunction score (HR 1.7 for each five-point increment, 1.4-2.0); physician prediction of ICU survival [< 10% (HR 15.0, 6.7-33.6)], 10 to 40% [(HR 5.0, 2.3-11.2), 41 to 60% (HR 4.0, 1.8-9.0) relative to > 90%]; and physician perception of patient preference to limit life support (no advanced life support [(HR 5.8, 3.6-9.4) or partial advanced life support (HR 3.2, 2.2-4.6) compared to full measures]. CONCLUSION: One third of mechanically ventilated patients had DNR directives established early during their ICU stay after the first 24 hr of admission. The strongest predictors of DNR directives were physician prediction of low probability of survival, physician perception of patient preference to limit life support, organ dysfunction, medical diagnosis and age.

APACHE↗

Blood transfusion practice today.

In trying to develop a cohesive and logical transfusion strategy, one must try to keep all of the previously mentioned information in mind. While recognizing that RBC transfusions are an integral part of care for critically ill patients, one also must recognize that there are large amounts of data that associate multiple transfusions of allogeneic blood with increased risk of morbidity and mortality. Some data exist showing causation and association, such as studies demonstrating the immunomodulatory effects of allogeneic transfusions. In addition, the blood supply is a limited resource that should not be used indiscriminately. It therefore behooves clinicians to subject each unit of blood transfused to scrutiny. In all likelihood, patients who are not actively bleeding and who are not hypovolemic probably get little to no benefit from allogeneic blood transfusions while their hemoglobin is greater than 7 g/dL. They do, however, get needless exposure to a potentially toxic substance. Although it is the authors' hope that more research will be performed to clarify the risks and benefits of blood transfusion, the authors also hope that knowledge of already published studies will continue to spread and replace the unfounded practices of the past.

Clinical Trials as Topic↗

Caring for the caregiver.

There are certainly many coping behaviors that may assist ICU caregivers in the process of caring for themselves. Staff support groups,regular interdisciplinary meetings to discuss difficult cases,and bringing trained personnel into the intensive care unit (ICU)environment to offer staff training in communication and conflict resolution skills have been suggested as methods for alleviating caregiver stress. Combining these as well as other tools with a deeper look at the caregiver-patient relationship are important building blocks for creating a sane, healthy environment in the ICU. Over the next years, as the population ages, and as technologic advances continue, the critical care units will play an even more prominent role in health care. Given the threat posed by the severe nursing shortage, it becomes apparent that, to prepare for this increased need for critical care services, efforts must be directed to identify the sources of distress for ICU caregivers and develop focused training programs that alleviate the inevitably strains and pressures that arise in the process of compassionate caring for the critically ill.

Adaptation, Psychological↗