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Biomedical subjects

J Randall Curtis

Publications and source records attributed to J Randall Curtis.

At least 55 records · Page 3Linked to original sources
PubMed2004

Beta-blockers as single-agent therapy for hypertension and the risk of mortality among patients with chronic obstructive pulmonary disease.

PURPOSE: To assess the association between the type of antihypertensive medication and all-cause mortality among patients with chronic obstructive pulmonary disease (COPD). METHODS: The cohort comprised 1966 patients (mean [+/- SD] age, 65.8 +/- 10.7 years) enrolled in general internal medicine clinics at seven Veterans Affairs medical centers between December 1996 and October 1999. Patients had a diagnosis of both COPD and hypertension and were receiving single-agent antihypertensive therapy. RESULTS: Compared with calcium channel blockers, beta-blockers were associated with a decrease in mortality from any cause after adjusting for propensity for having been prescribed a beta-blocker (hazard ratio = 0.57; 95% confidence interval: 0.33 to 0.89). The association was similar when beta-blockers were compared with all other antihypertensive medications, and the decreased risk of mortality was apparent among patients with pre-existing cardiac disease. Restriction of analyses to long-acting calcium channel blockers or to patients who used beta-agonists did not affect the point estimates. Exposure to the remaining classes of antihypertensive agents was not associated with mortality. CONCLUSION: Beta-blockers may have beneficial effects in patients who have COPD, pre-existing cardiac disease, and hypertension. Beta-blockers may not be contraindicated among patients with COPD.

Adrenergic beta-Antagonists↗
PubMed2004

Association between chronic heart failure and inhaled beta-2-adrenoceptor agonists.

BACKGROUND: Recent reports suggest an association between beta-agonists and the risk of incident chronic heart failure (CHF). We sought to examine the association between inhaled beta-agonists and risk of incident and nonincident heart failure. METHODS: We performed a nested case-control study within the Ambulatory Care Quality Improvement Project (ACQUIP). Case subjects were defined as having had a hospitalization with a primary discharge diagnosis of CHF. Controls were randomly selected from the ACQUIP cohort. The exposure was the number of beta-agonist canisters filled in the 90 days before an index date. RESULTS: After adjusting for potentially confounding factors, there appeared to be no association between the use of inhaled beta-agonists and the risk of heart failure (1-2 canisters per month, OR 1.3 [95% CI 0.9, 1.8], > or =3 canisters per month, 1.1 [95% CI 0.8, 1.6]). However, among the cohort that had a history of CHF, there appeared to be a dose-response association between the number of inhaled beta-agonists and the risk of hospitalization for chronic heart failure (1-2 canisters per month, adjusted OR 1.8 [95% CI 1.1, 3.0], > or =3 canisters per month, adjusted OR 2.1 [95% CI 1.2, 3.8]). CONCLUSION: beta-Agonists did not appear to be associated with incident heart failure but were associated with risk of CHF hospitalization among those subjects with a previous CHF diagnosis. Although a causal relationship cannot be inferred from these findings, further research is warranted to determine the safety and effectiveness of inhaled beta-agonists for patients with CHF.

Administration, Inhalation↗
PubMed2004

Communicating about end-of-life care with patients and families in the intensive care unit.

Discussing end-of-life care and death with patients and their families is an extremely important part of providing a good quality care in the intensive care unit (ICU). Although there is little empiric research to guide ICU clinicians in the most effective way to have these conversations, there is a developing literature and experience and an increasing emphasis on making this an important part of the care we provide. Much like other ICU procedures or skills,providing sensitive and effective communication about end-of-life care requires training, practice, and supervision, as well as planning and preparation. Although different clinicians may have different approaches and should change their approach to match the needs of individual patients and their families, this article reviews some of the fundamental components to discussing end-of-life care in the ICU that should be part of the care of patients with life-threatening illnesses in the ICU.

Advance Care Planning↗
PubMed2004

A content analysis of forms, guidelines, and other materials documenting end-of-life care in intensive care units.

OBJECTIVE: The purpose of this study was to determine the extent to which data entry forms, guidelines, and other materials used for documentation in intensive care units (ICUs) attend to 6 key end-of-life care (EOLC) domains: 1) patient and family-centered decision making, 2) communication, 3) continuity of care, 4) emotional and practical support, 5) symptom management and comfort care, and 6) spiritual support. A second purpose was to determine how these materials might be modified to include more EOLC content and used to trigger clinical behaviors that might improve the quality of EOLC. PARTICIPANTS: Fifteen adult ICUs-8 medical, 2 surgical, and 4 mixed ICUs from the United States, and 1 mixed ICU in Canada, all affiliated with the Critical Care End-of-Life Peer Workgroup METHODS: Physician-nurse teams in each ICU received detailed checklists to facilitate and standardize collection of requested documentation materials. Content analysis was performed on the collected documents, aimed at characterizing the types of materials in use and the extent to which EOLC content was incorporated. MEASUREMENTS AND MAIN RESULTS: The domain of symptom management and comfort care was integrated most consistently on forms and other materials across the 15 ICUs, particularly pain assessment and management. The 5 other EOLC domains of patient and family centered decision-making, communication, emotional and practical support, continuity of care, and spiritual support were not well-represented on documentation. None of the 15 ICUs supplied a comprehensive EOLC policy or EOLC critical pathway that outlined an overall, interdisciplinary, sequenced approach for the care of dying patients and their families. Nursing materials included more cues for attending to EOLC domains and were more consistently preprinted and computerized than materials used by physicians. Computerized forms concerning EOLC were uncommon. Across the 15 ICUs, there were opportunities to make EOLC- related materials more capable of triggering and documenting specific EOLC clinical behaviors. CONCLUSIONS: Inclusion of EOLC items on ICU formatted data entry forms and other materials capable of triggering and documenting clinician behaviors is limited, particularly for physicians. Standardized scales, protocols, and guidelines exist for many of the EOLC domains and should be evaluated for possible use in ICUs. Whether such materials can improve EOLC has yet to be determined.

Attitude of Health Personnel↗
PubMed2004

Agreement among family members in their assessment of the Quality of Dying and Death.

Improving end-of-life care requires accurate indicators of the quality of dying. The purpose of this study was to measure the agreement among family members who rate a loved one's dying experience. We administered the Quality of Dying and Death instrument to 94 family members of 38 patients who died in the intensive care unit. We measured a quality of dying score of 60 out of 100 points and found moderate agreement among family members as measured by an intraclass correlation coefficient (ICC) of 0.44. Variability on individual items ranged from an ICC of 0.15 to 1.0. Families demonstrated more agreement on frequencies of events (ICC 0.54) than on determinations of quality (ICC 0.32). These findings reveal important variability among family raters and suggest that until the variability is understood, multiple raters may generate more comprehensive end-of-life data and may more accurately reflect the quality of dying and death.

Attitude to Death↗
PubMed2004

Narcotic and benzodiazepine use after withdrawal of life support: association with time to death?

OBJECTIVE: To determine whether the dose of narcotics and benzodiazepines is associated with length of time from mechanical ventilation withdrawal to death in the setting of withdrawal of life-sustaining treatment in the ICU. DESIGN: Retrospective chart review. SETTING: University-affiliated, level I trauma center. PATIENTS: Consecutive critically ill patients who had mechanical ventilation withdrawn and subsequently died in the ICU during two study time periods. RESULTS: There were 75 eligible patients with a mean age of 59 years. The primary ICU admission diagnoses included intracranial hemorrhage (37%), trauma (27%), acute respiratory failure (27%), and acute renal failure (20%). Patients died during a median of 35 min (range, 1 to 890 min) after ventilator withdrawal. On average, 16.2 mg/h opiates in morphine equivalents and 7.5 mg/h benzodiazepine in lorazepam equivalents were administered during the time period starting 1 h before ventilator withdrawal and ending at death. There was no statistically significant relationship between the average hourly narcotic and benzodiazepine use during the 1-h period prior to ventilator withdrawal until death, and the time from ventilator withdrawal to death. The restriction of medication assessment in the last 2 h of life showed an inverse association between the use of benzodiazepines and time to death. For every 1 mg/h increase in benzodiazepine use, time to death was increased by 13 min (p = 0.015). There was no relationship between narcotic dose and time to death during the last 2 h of life (p = 0.11). CONCLUSIONS: We found no evidence that the use of narcotics or benzodiazepines to treat discomfort after the withdrawal of life support hastens death in critically ill patients at our center. Clinicians should strive to control patient symptoms in this setting and should document the rationale for escalating drug doses.

APACHE↗
PubMed2004

Evaluation of a standardized order form for the withdrawal of life support in the intensive care unit.

OBJECTIVE: The intensive care unit remains a setting where death is common, and a large proportion of these deaths are preceded by withdrawal of life support. We describe a quality improvement project implementing and evaluating a "withdrawal of life support order form" to improve quality of end-of-life care in the intensive care unit. DESIGN: Before-after evaluation. SETTING: County-owned, university-operated, tertiary, level I trauma center. SUBJECTS: Subjects were 143 nurses and 61 physicians. INTERVENTIONS: We conducted a before-after evaluation of the order form's implementation. The order form has sections on preparations, sedation/analgesia, withdrawal of mechanical ventilation, and the principles of life support withdrawal. To evaluate the form, we surveyed intensive care unit clinicians regarding satisfaction with the form, measured nurse-assessed quality of dying and death with a 14-item survey (scored 0 for worst possible death to 100 for best possible), and performed chart review to assess narcotic and benzodiazepine use and time from ventilator withdrawal to death. MEASUREMENTS AND MAIN RESULTS: We surveyed 143 nurses and 61 physicians about satisfaction with the form. Among nurses reporting that the form was used (n = 73), most (84%) reported that the order form was helpful and they were most satisfied with the sedation and mechanical ventilation sections. Almost all physicians found the form helpful (95%), and > 70% of physicians found three of the four sections helpful (sedation, mechanical ventilation, and preparations). We obtained quality of dying and death scores for 41 patient deaths before and 76 deaths after the intervention. These scores did not significantly change (mean preintervention score, 78.3; mean postintervention score, 74.2; p = .54) before and after the intervention. Total doses of narcotics and benzodiazepines increased after implementation of the order form in the hour before ventilator withdrawal, the hour after ventilator withdrawal, and the hour before death (p < or = .03). There was no change in the median time from ventilator withdrawal to death (preintervention 37 mins, postintervention 39 mins; p = .49). CONCLUSIONS: Nurses and physicians found the withdrawal of life support order form helpful. The order form did not improve nurses' assessment of patients' dying experience. Medications for sedation increased during the postorder form period without evidence of significantly hastening death. Although the order form was helpful to clinicians and changed medication delivery, demonstrating clear improvements in quality of dying may require larger sample sizes, more sensitive measures, or more effective interventions.

Aged↗
PubMed2004

Family satisfaction with family conferences about end-of-life care in the intensive care unit: increased proportion of family speech is associated with increased satisfaction.

OBJECTIVE: Family members of critically ill patients report dissatisfaction with family-clinician communication about withdrawing life support, yet limited data exist to guide clinicians in this communication. The hypothesis of this analysis was that increased proportion of family speech during ICU family conferences would be associated with increased family satisfaction. DESIGN: Cross-sectional study. SETTING: We identified family conferences in intensive care units of four Seattle hospitals during which discussions about withdrawing life support were likely to occur. PARTICIPANTS: Participants were 214 family members from 51 different families. There were 36 different physicians leading the conferences, as some physicians led more than one conference. INTERVENTIONS: Fifty-one conferences were audiotaped. MEASUREMENTS: We measured the duration of time that families and clinicians spoke during the conference. All participants were given a survey assessing satisfaction with communication. RESULTS: The mean conference time was 32.0 mins with an sd of 14.8 mins and a range from 7 to 74 mins. On average, family members spoke 29% and clinicians spoke 71% of the time. Increased proportion of family speech was significantly associated with increased family satisfaction with physician communication. Increased proportion of family speech was also associated with decreased family ratings of conflict with the physician. There was no association between the duration of the conference and family satisfaction. CONCLUSIONS: This study suggests that allowing family members more opportunity to speak during conferences may improve family satisfaction. Future studies should assess the effect of interventions to increase listening by critical care clinicians on the quality of communication and the family experience.

Communication↗
PubMed2004

Factors associated with nurse assessment of the quality of dying and death in the intensive care unit.

OBJECTIVE: To determine the feasibility of using nurse ratings of quality of dying and death to assess quality of end-of-life care in the intensive care unit and to determine factors associated with nurse assessment of the quality of dying and death for patients dying in the intensive care unit. DESIGN: Prospective cohort study. SETTING: Hospital intensive care unit. PATIENTS: 178 patients who died in an intensive care unit during a 10-month period at one hospital. INTERVENTIONS: Nurses completed a 14-item questionnaire measuring the quality of dying and death in the intensive care unit (QODD); standardized chart reviews were also completed. MEASUREMENTS AND MAIN RESULTS: Five variables were found to be associated with QODD scores. Higher (better) scores were significantly associated with having someone present at the time of death (p <.001), having life support withdrawn (p =.006), having an acute diagnosis such as intracranial hemorrhage or trauma (p =.007), not having cardiopulmonary resuscitation in the last 8 hrs of life (p <.001), and being cared for by the neurosurgery or neurology services (p =.002). Patient age, chronic disease, and Glasgow Coma Scale scores were not associated with the 14-item QODD. Using multivariate analyses, we identified three variables as independent predictors of the QODD score: a) not having cardiopulmonary resuscitation performed in the last 8 hrs of life; b) having someone present at the moment of death; and c) being cared for by neurosurgery or neurology services. CONCLUSIONS: Intensive care unit nurse assessment of quality of dying and death is a feasible method for obtaining quality ratings. Based on nurse assessments, this study provides evidence of some potential targets for interventions to improve the quality of dying for some patients: having someone present at the moment of death and not having cardiopulmonary resuscitation in the last 8 hrs of life. If nurse-assessed quality of dying is to be a useful tool for measuring and improving quality of end-of-life care, it is important to understand the factors associated with nurse ratings.

Adolescent↗
PubMed2004

Management of the critically ill patient with severe acute pancreatitis.

OBJECTIVE: Acute pancreatitis represents a spectrum of disease ranging from a mild, self-limited course requiring only brief hospitalization to a rapidly progressive, fulminant illness resulting in the multiple organ dysfunction syndrome (MODS), with or without accompanying sepsis. The goal of this consensus statement is to provide recommendations regarding the management of the critically ill patient with severe acute pancreatitis (SAP). DATA SOURCES AND METHODS: An international consensus conference was held in April 2004 to develop recommendations for the management of the critically ill patient with SAP. Evidence-based recommendations were developed by a jury of ten persons representing surgery, internal medicine, and critical care after conferring with experts and reviewing the pertinent literature to address specific questions concerning the management of patients with severe acute pancreatitis. DATA SYNTHESIS: There were a total of 23 recommendations developed to provide guidance to critical care clinicians caring for the patient with SAP. Topics addressed were as follows. 1) When should the patient admitted with acute pancreatitis be monitored in an ICU or stepdown unit? 2) Should patients with severe acute pancreatitis receive prophylactic antibiotics? 3) What is the optimal mode and timing of nutritional support for the patient with SAP? 4) What are the indications for surgery in acute pancreatitis, what is the optimal timing for intervention, and what are the roles for less invasive approaches including percutaneous drainage and laparoscopy? 5) Under what circumstances should patients with gallstone pancreatitis undergo interventions for clearance of the bile duct? 6) Is there a role for therapy targeting the inflammatory response in the patient with SAP? Some of the recommendations included a recommendation against the routine use of prophylactic systemic antibacterial or antifungal agents in patients with necrotizing pancreatitis. The jury also recommended against pancreatic debridement or drainage for sterile necrosis, limiting debridement or drainage to those with infected pancreatic necrosis and/or abscess confirmed by radiologic evidence of gas or results or fine needle aspirate. Furthermore, the jury recommended that whenever possible, operative necrosectomy and/or drainage be delayed at least 2-3 wk to allow for demarcation of the necrotic pancreas. CONCLUSIONS: This consensus statement provides 23 different recommendations concerning the management of patients with SAP. These recommendations differ in several ways from previous recommendations because of the release of recent data concerning the management of these patients and also because of the focus on the critically ill patient. There are a number of important questions that could not be answered using an evidence-based approach, and areas in need of further research were identified.

Acute Disease↗
PubMed2004

The use of high positive end-expiratory pressure for respiratory failure in abdominal compartment syndrome.

We report a case in which a non-trauma patient suffering hematemesis and undergoing massive volume resuscitation developed abdominal compartment syndrome (ACS). The abdominal distension severely compromised his pulmonary functioning: a chest radiograph showed low lung volumes and dense bilateral parenchymal opacities. His blood oxygen saturation reached as low as 32%. Because he was hemodynamically unstable and coagulopathic, decompressive surgery was not possible. We gradually raised the ventilator settings to reinflate the lungs (positive end-expiratory pressure [PEEP] was raised to 50 cm H(2)O, peak inspiratory pressure to 100 cm H(2)O, and plateau inspiratory pressure to 80 cm H(2)O) and continued fluid resuscitation, and within an hour his blood oxygen saturation increased to 100%. In this case high PEEP was beneficial in a situation in which decompressive surgery was not feasible, but we do not suggest that high PEEP necessarily improves survival or that high PEEP is better than surgical decompression. On the contrary, high-pressure ventilation can be harmful in the setting of acute lung injury and acute respiratory distress syndrome, so we do not advocate high PEEP for all patients with hypoxemia and ACS, especially considering that many of the conditions associated with ACS can also precipitate acute lung injury and acute respiratory distress syndrome. As well, high-pressure ventilation can increase the risk of hypotension by impairing venous return. However, our case suggests that high PEEP may temporize in certain situations in which ACS causes life-threatening hypoxia but surgical decompression is not possible.

Abdomen↗
PubMed2003

Inhaled corticosteroids in chronic obstructive pulmonary disease and risk of death and hospitalization: time-dependent analysis.

Observational studies of inhaled corticosteroids in chronic obstructive pulmonary disease (COPD) have shown improved survival whereas randomized trials have not. It has been suggested that this difference may be due to immortal time bias. To investigate this further, we performed a prospective cohort study of patients with COPD, using time-dependent methods to determine whether use of inhaled corticosteroids more than 80% of the time reduced the risk of all-cause mortality and COPD exacerbations. Of 8,033 patients, 2,686 (33%) received inhaled corticosteroids. We did not find a significant reduction in mortality for average inhaled steroid use at either low (hazard ratio [HR], 0.96; 95% confidence interval [CI], 0.69-1.33) or medium/high dose (HR, 0.86; 95% CI, 0.67-1.10). Similarly, recent inhaled corticosteroid use was not associated with a reduction in mortality at low (HR, 0.80; 95% CI, 0.60-1.07) or medium/high doses (HR, 0.88; 95% CI, 0.71-1.09). There was no association between inhaled corticosteroid use and hospitalizations or exacerbations due to COPD. Patients using medium/high-dose inhaled corticosteroids did not have a significantly lower risk of COPD hospitalizations (HR, 0.85; 95% CI, 0.64-1.13) or COPD exacerbations (HR, 1.13; 95% CI, 0.94-1.36). In a time-dependent study of outpatients with COPD, adherence to inhaled corticosteroid use was not associated with a decreased risk of mortality or exacerbations.

Administration, Inhalation↗
PubMed2003

Measuring and improving the quality of dying and death.

Improving end-of-life experience is a major challenge to successful aging. Deaths that are reasonably free of discomfort, in accordance with patients' wishes, and within acceptable professional and ethical standards are high-quality deaths. The authors developed a 31-item measure of the quality of dying and death and applied it in a community sample and a sample of hospice enrollees. Scores on the Quality of Dying and Death Instrument and measures of perceived quality of care were collected from patients' loved ones after death. Higher overall after-death ratings of the quality of care received from all providers and from physicians were associated with higher-quality dying and death. How well patients' symptoms were controlled in the community study and how well wishes were followed and treatments were explained in the hospice study were associated with higher-quality dying. Major challenges to end-of-life research include recruiting representative population samples, given widespread reluctance of patients and loved ones to participate in research at the end of life; important variation in evaluations among different reporters after death; reluctance of loved ones to assign negative evaluations to dying experiences after death; and the highly individual and dynamic nature of dying experiences. Overcoming these challenges is of great importance in the search for the social, organizational, and individual determinants of high-quality dying in the U.S. cultural and health care context.

Hospices↗
PubMed2003

Association between acute and chronic graft-versus-host disease and bronchiolitis obliterans organizing pneumonia in recipients of hematopoietic stem cell transplants.

Bronchiolitis obliterans organizing pneumonia (BOOP) has been reported following hematopoietic stem cell (HSC) transplantation, but the clinical features and risk factors for this disorder have not been well characterized. This case-control study of 49 patients with histologic BOOP and 161 control subjects matched by age and year of transplantation describes the clinical features and analyzes the risk factors for BOOP following HSC transplantation. Data on clinical features and outcome were collected by chart review. Odds ratios, estimating the relative risk of BOOP in allogeneic HSC recipients, were calculated by conditional logistic regression with adjustment for potential confounding factors. Clinical features of BOOP in this population were similar to idiopathic BOOP and BOOP occurring in other disease settings. There was an association between acute and chronic graft-versus-host disease (GVHD) and the subsequent development of BOOP (odds ratios, 3.8 [95% CI, 1.2 to 12.3] and 3.1 [95% CI, 1.1 to 9.2], respectively). Patients with BOOP were more likely to have acute GVHD involving the skin (odds ratio, 4.6; P =.005) and chronic GVHD involving the gut (odds ratio, 6.6; P =.018) and oral cavity (odds ratio, 5.9; P =.026). This study shows that histologic BOOP following HSC transplantation has clinical features that resemble idiopathic BOOP and is strongly associated with prior acute and chronic GVHD. These results have important implications for the care of patients who develop respiratory symptoms after HSC transplantation and may help elucidate the pathogenesis of idiopathic BOOP.

Acute Disease↗