Premorbid Functional Status Research Articles

Cardiopulmonary rehabilitation after treatment for lung cancer.

Lung cancer is the leading cause of cancer-related death in women and men in the United States. As of 1987, lung cancer deaths in women exceeded deaths caused by breast cancer. Despite years of research and improvements in surgical, chemotherapeutic, and radiation treatments, this fact remains unchanged. Equally dismal is that the expected 5-year survival rate for all patients with lung cancer is 15%. Although hidden in this number is improved survival for many patients who have early disease, it still translates into significant morbidity and early mortality for many patients. Although prevention is key, optimizing the care of these patients with lung cancer is also paramount. Cardiopulmonary rehabilitation programs have been shown to be effective in treating patients with chronic heart and lung diseases, among other illnesses, regardless of prerehabilitation functioning. Not only do morbidity and mortality from cancer hinge directly on premorbid functioning, health, and status, but functional status as a measure of baseline health is a reliable prognostic indicator for patients with lung cancer. As a result, including a program of exercise in any treatment regimen for cancer is sensible. However, rehabilitation in patients with lung cancer has not been studied well. Data on rehabilitation in patients with other cancers and illnesses (eg, chronic obstructive pulmonary disease) are clear in the beneficial effects of supervised exercise on quality of life (QOL). To assess the role of cardiopulmonary rehabilitation in patients with lung cancer undergoing treatment, it is necessary to meld studies regarding patients with noncancerous conditions with studies addressing rehabilitation in patients with cancer. This fusion of information demonstrates that rehabilitation results in significant improvements in QOL in patients who participate, regardless of the disease in question. Although QOL may not always have been an obvious endpoint for treating patients with lung cancer, it is apparent from studies of the patients themselves that an improved QOL is far more important than other goals of therapy.

The Identification of Seniors At Risk Screening Tool: Further Evidence of Concurrent and Predictive Validity

To evaluate the validity of the Identification of Seniors at Risk (ISAR) screening tool for detecting severe functional impairment and depression and predicting increased depressive symptoms and increased utilization of health services. Four university-affiliated hospitals in Montreal. Data from two previous studies were available: Study 1, in which the ISAR scale was developed (n=1,122), and Study 2, in which it was used to identify patients for a randomized trial of a nursing intervention (n=1,889 with administrative data, of which 520 also had clinical data). Patients aged 65 and older who were to be released from an emergency department (ED). Baseline validation criteria included premorbid functional status in both studies and depression in Study 2 only. Increase in depressive symptoms at 4-month follow-up was assessed in Study 2. Information on health services utilization during the 5 months after the ED visit (repeat ED visits and hospitalization in both studies, visits to community health centers in Study 2) was available by linkage with administrative databases. Estimates of the area under the receiver operating characteristic curve (AUC) for concurrent validity of the ISAR scale for severe functional impairment and depression ranged from 0.65 to 0.86. Estimates of the AUC for predictive validity for increased depressive symptoms and high utilization of health services ranged from 0.61 to 0.71. The ISAR scale has acceptable to excellent concurrent and predictive validity for a variety of outcomes, including clinical measures and utilization of health services.

Outcome of Moderate and Severe Traumatic Brain Injury Amongst the Elderly in Singapore

Introduction: In line with other established protocols, our unit has instituted a standardised protocol for the management of moderate and severe traumatic brain injury since 1996 in our neurointensive care unit. Materials and Methods: We reviewed the outcomes, at 6 months’ postinjury, in an elderly group aged >64 years (73.86 ± 8.0 years) and compared them to a younger group aged 20 to 40 years (29.2 ± 5.7 years) in a cohort of 324 patients. Outcome was dichotomised as favourable (mild and moderate disability but independent; Glasgow Outcome Score [GOS] 4 and 5), unfavourable (severe disability and persistent vegetative state; GOS 2 and 3) and death (GOS 1). Results: In the elderly group, the mortality (55.4%) was slightly more than double that of the younger group (20.9%); 21.5% had an unfavourable outcome (14.2% in the younger group) and only 23% had a favourable outcome (compared to 64.9% in the younger group). The final outcomes were significantly worse in all levels in the elderly group. This was in spite of data showing that the mechanism of injury was of a higher impact in the younger group, with a higher incidence of polytrauma and cervical spine injury. On admission, the mean Glasgow Coma Score (GCS) was 8.3 ± 3.91 for the elderly group and 8.59 ± 4.05 for the younger group (P = 0.763). Computed tomography scan showed that the elderly had a higher incidence of mass lesions (extradural haematoma and subdural haematoma) and traumatic subarachnoid haemorrhage. A subgroup (29.2%) of elderly patients had no surgical intervention based on poor clinical/neurological status, premorbid functional status and pre-existing medical conditions, with their family’s consent. The GCS of <8, on admission, was significant (P <0.001) in predicting mortality in the elderly. In the elderly group, the female gender had a higher mortality rate (70.4%) than the males (44.7%) (P = 0.19). Conclusion: Age must be considered an independent factor in outcome prediction in the elderly with moderate and severe traumatic brain injury. A more conservative approach in the management of an elderly patient with severe head injury may be reasonable given its dismal outcomes after careful dialogue with the relatives.

Validation of a model for evaluating outcome after traumatic brain injury

Bush BA, Novack TA, Malec JF, Stringer AY, Millis SR, Madan A. Validation of a model for evaluating outcome after traumatic brain injury. Arch Phys Med Rehabil 2003;84:1803–7. Objective To validate a model that examines the contribution of premorbid variables, injury severity, and functional and cognitive status to outcome 1 year after traumatic brain injury (TBI). Design Cross-validation study using a larger, national, prospective, longitudinal sample. Setting Acute inpatient rehabilitation hospitals at Traumatic Brain Injury Model Systems centers. Participants Two sample populations followed through acute rehabilitation to 1 year after TBI. The original sample included 107 patients, and the cross-validation sample included 294 patients. Participants were predominately young men who had experienced moderate to severe TBI in motor vehicle crashes. Interventions Acute medical and rehabilitation care. Main outcome measures Disability Rating Scale, Community Integration Questionnaire, and return to employment. Results Structural equation modeling was used to compare the fit of the data to a path analysis developed through clinical use and previous research. Both samples provided adequate goodness of fit, supporting the model’s validity. Injury severity affected cognitive and functional status, and cognitive and functional status significantly influenced 1-year outcome. Premorbid factors and injury severity did not directly influence outcome. Conclusions Both samples supported the proposed model, which was cross-validated. Injury severity indirectly influences outcome through its effects on cognitive and functional status. Although treatment to decrease injury severity is obviously important, concentrated rehabilitation interventions aimed at improving patients’ cognitive and functional status may have a more significant impact on 1-year outcome and should be the focus of future research.

Influence of perceived functional and employment status on cardiopulmonary resuscitation directives

Background: Perceptions about functional and employment status before admission to the intensive care unit (ICU) may influence how patients and clinicians make decisions about cardiopulmonary resuscitation. Objective: To examine the relationship between cardiopulmonary resuscitation directives established within 24 hours of admission to the ICU and clinical perceptions of premorbid functional and employment status. Design: Prospective observational study in 15 university-affiliated centers in Canada, the United States, Australia, and Sweden. Patients: A total of 1,008 ICU patients aged 18 years or older expected to stay in the ICU at least 72 hours. Measurements: By using multinomial logistic regression, we examined the relationship between functional status and employment status perceived by the ICU team 1 month before ICU admission (the independent variables) and resuscitation status (the dependent variable). Each patient had either an explicit resuscitation directive (to resuscitate or not to resuscitate), or an implicit resuscitation directive to resuscitate. Results: On average, patients were 61.7 years (±17.4 y) old with an Acute Physiology and Chronic Health Evaluation (APACHE) II score of 21.5 (±8.7); 846 (83.9%) were ventilated mechanically within 48 hours and 345 (34.2%) died in the ICU. Most patients (793, 78.7%) had no explicit resuscitation directive; 98 (9.7%) had an explicit plan to resuscitate, whereas 117 (11.6%) had an explicit plan of do-not-resuscitate. Of 1,008 patients, 98 (9.7%) were severely functionally limited, 217 (21.5%) were somewhat limited, 628 (62.3%) were totally independent, and 65 (6.4%) had unknown functional status 1 month before ICU admission. Severe functional status impairment was associated moderately with an explicit plan to resuscitate (odds ratio, 2.2 relative to no explicit directive) and associated strongly with an explicit do-not-resuscitate plan (odds ratio, 6.2 relative to no explicit directive, P value on the difference = .011). This relationship was not influenced by age, sex, APACHE II score, medical or surgical status, admission diagnosis, employment status, or city. However, severe functional status was associated strongly and significantly with an explicit do-not-resuscitate directive among those who could not participate in decision making (odds ratio, 8.2; 95% confidence interval, 4.5–15.0), and more weakly associated in those who could participate (odds ratio, 1.7; 95% confidence interval, 0.3–8.6). Being unemployed was associated with an increased odds of an explicit resuscitation directive versus no explicit directive (odds ratio, 5.5; 95% confidence interval, 2.2–13.4). Conclusions: Functional status impairment perceived by the ICU team is associated clearly with do-not-resuscitate directives in patients unable to participate in decision making. However, the association appears much weaker in patients able to participate in decision making. Patients’ perceived employment status also may influence resuscitation decisions. Our results emphasize the challenges of ensuring that crucial resuscitation decisions are not affected adversely by patients’ inability to participate in decisions, and by their functional and employment status.

1: Rehabilitation and older people.

Older people make up the majority of participants in general rehabilitation programs. Stroke and hip fracture are the major diagnostic groups. Most older people with significant disability of recent onset have the potential to benefit from rehabilitation. Assessing an older person's premorbid functional and cognitive status, which are strong determinants of rehabilitation outcome, is an important component of management. The major goals of rehabilitation for older people are mobility and self-care without the assistance of another person. Evidence suggests that rehabilitation for older people involving a coordinated multidisciplinary team of health professionals (including nurses and doctors) is effective. Contemporary rehabilitation practice is not confined to traditional inpatient rehabilitation units; it also occurs in the community and other non-hospital settings, and involves general practitioners.

Community-acquired pneumonia in older veterans: does the pneumonia prognosis index help?

Mortality rates from pneumonia increase steadily with age. Recently, a disease severity model (the Pneumonia Prognosis Index (PPI)) has been developed to predict mortality from community-acquired pneumonia (CAP). PPI ranks severity of pneumonia from 1 to 5, with 5 being most severe. This retrospective study utilizes the PPI to address the prognosis of CAP in older adults. Retrospective review of medical charts. Department of Veterans Affairs Medical Center. All adults aged 60 and older admitted to a Veterans Affairs Medical Center with CAP between January 1 and December 31, 1998. PPI was calculated using subjects' demographics, comorbidities, presenting symptoms, and laboratory measurements. Eighty-two patients aged 60 and older were admitted with 101 episodes of CAP. The mean age +/- standard deviation was 72 +/- 9. Seventy-four episodes were admitted from the emergency room, 20 from another hospital, seven from nursing homes, and five from outpatient clinics. Mean length of stay was 7.1 +/- 6 days. Comorbid conditions included coronary artery disease, diabetes mellitus, congestive heart failure, neoplasm, stroke, and renal failure. Most episodes fell into higher PPI classes, with 20% in Class 3, 46% in Class 4, and 32% in Class 5. PPI score was significantly related to length of stay (P < .001), intensity of care (P < .0001), and presence of complications (P <.001). Mortality was 14% at 30 days: 0.5% in Class 3,10.8% in Class 4, and 25% in Class 5. The PPI was effective in identifying older adults with CAP who were at risk of a poor outcome, but the practical utility of this index remains to be determined.Further prospective studies are required to elucidate the importance of comorbidities, severity at presentation, and premorbid functional status on clinical and functional outcomes of CAP in older adults.

Factors associated with withdrawal of mechanical ventilation in a neurology/neurosurgery intensive care unit.

The objective of this study was to identify factors associated with the decision to withdraw mechanical ventilation from patients in a neurology/neurosurgery intensive care unit. Specifically, the following factors were considered: the severity of the neurologic illness, the healthcare delivery system, and social factors. Retrospective analysis of prospectively collected clinical database. Neurology/neurosurgery intensive care unit of a large academic tertiary care hospital. Patients were 2,109 nonelective admissions to the neurology/neurosurgery intensive care unit who received mechanical ventilation over a period of 82 months. None. The average age was 56 +/- 19.7 yrs, 53% were male, and 81% were functionally normal before admission. The median Glasgow Coma Scale score was 14, the average Acute Physiology and Chronic Health Evaluation II severity of illness score was 13.5 +/- 8.3, and probability of death was 18.2 +/- 22.0%. Mechanical ventilation was withdrawn from 284 (13.5%). Factors that were independently associated with withdrawal of mechanical ventilation were as follows: more severe neurologic injury [admission Glasgow Coma Scale score (odds ratio 0.86/point, confidence interval 0.82-0.90), diagnosis of subarachnoid hemorrhage (odds ratio 2.44, confidence interval 1.50-3.99), or ischemic stroke (odds ratio 1.72, confidence interval 1.13-2.60)], older age (odds ratio 1.04/yr, confidence interval 1.03-1.05), and higher Acute Physiology and Chronic Health Evaluation II probability of death (odds ratio 1.03/%, confidence interval 1.02-1.04). Mechanical ventilation was less likely to be withdrawn if patients were African-American (odds ratio 0.50, confidence interval 0.36-0.68) or had undergone surgery (odds ratio 0.44, confidence interval 0.2- 0.67). Marital status, premorbid functional status, clinical service (neurology vs. neurosurgery), attending status (private vs. academic), and type of health insurance were not associated with decisions to withdraw mechanical ventilation. We conclude that decisions to withdraw mechanical ventilation in the neurology/neurosurgery intensive care unit are based primarily on the severity of the acute neurologic condition and age but not on characteristics of the healthcare delivery system. Care is less likely to be withdrawn from African-American patients or those who had surgery.

Outcome after traumatic brain injury: Pathway analysis of contributions from premorbid, injury severity, and recovery variables

Novack TA, Bush BA, Meythaler JM, Canupp K. Outcome after traumatic brain injury: pathway analysis of contributions from premorbid, injury severity, and recovery variables. Arch Phys Med Rehabil 2001;82:300-5. Objective: To examine the relationship of premorbid variables, injury severity, and cognitive and functional status to outcome 1 year after traumatic brain injury (TBI) and to assess the feasibility of multivariate path analysis as a way to discover those relationships. Design: Prospective, longitudinal. Settings: Level I trauma center, acute inpatient rehabilitation hospital. Patients: One hundred seven subjects (87 men, 20 women; mean age, 33.91 ± 14.2 yr) who had experienced severe TBI, typically from motor vehicle crashes. Interventions: Acute medical and rehabilitation care. Main Outcome Measures: Disability Rating Scale, Community Integration Questionnaire, and return to employment. Evaluated in acute rehabilitation, and at 6 and 12 months' postinjury. Results: Path analyses revealed that premorbid factors had significant relationships with injury severity, functional skills, cognitive status, and outcome; injury severity affected cognitive and functional skills; and cognitive status influenced outcome. No significant relationships were found between injury severity and emotional status, injury severity and outcome, emotional status and outcome, and functional skills and outcome. Conclusions: Multivariate analysis is important to understanding outcome after TBI. Injury severity, as measured in this study, is less important to 12-month outcome than the premorbid status of the person and the difficulties (particularly cognitive deficits) exhibited at follow-up 6 months after the trauma.

Mechanical Ventilation in Chronic Obstructive Lung Disease

Exacerbations of COPD are a leading indication for MV in the intensive care unit. A thorough understanding of the pathophysiology of AVF in COPD is critical for physicians caring for these patients. In particular, physicians should understand DHI and use the ventilator and ancillary techniques to minimize its impact. Noninvasive positive-pressure ventilation should be considered strongly in relatively stable patients with an adequate mental status and manageable secretions. Once AVF resolves, patients should be removed from the ventilator as soon as is safe to do so to minimize the adverse effects of prolonged MV. An organized approach to weaning and identifying patients capable of independent breathing is crucial. Most patients with COPD and AVF benefit from MV and generally return to or approach their premorbid functional status. A significant subset, however, will not benefit from, or choose not to undergo, MV. Deciding upon appropriate therapeutic options for these patients relies heavily on effective communication between physician and patient. Comprehensive discussions before the development of AVF can assist decision-making after respiratory failure develops.

Decision Making and End-of-Life Care in Critically Ill Children

1) To comment on the medical literature on decision making regarding end-of-life therapy, 2) to analyze the data on disagreement about such therapy, including palliative care, and withholding and withdrawal practices for critically ill children in the pediatric intensive care unit (PICU), and 3) to make some general recommendations. All papers published in peer-reviewed journals, and all chapters on end-of-life therapy, or on conflict between parents and caregivers about end-of-life decisions in the PICU were retrieved. We found three case series, three systematic descriptive studies, two qualitative studies, four surveys, and many legal opinions, editorials, reviews, guidelines, and book chapters. The main determinants of end-of-life decisions are the child's age, premorbid cognitive condition and functional status, pain or discomfort, probability of survival, and quality of life. Risk factors in persistent conflict between parents and caregivers about end-of-life care include a grave underlying condition or an unexpected and severe event. Making decisions about end-of-life care is a frequent event in the PICU. Children may need both intensive care and palliative care concurrently at different stages of their illness. Disagreements are more likely to be resolved if the root cause of the conflict is better understood.

Predictors of acute hospital costs for treatment of ischemic stroke in an academic center.

We sought to determine predictors of acute hospital costs in patients presenting with acute ischemic stroke to an academic center using a stroke management team to coordinate care. Demographic and clinical data were prospectively collected on 191 patients consecutively admitted with acute ischemic stroke. Patients were classified by insurance status, premorbid modified Rankin scale, stroke location, stroke severity (National Institutes of Health Stroke Scale score), and presence of comorbidities. Detailed hospital charge data were converted to cost by application of department-specific cost-to-charge ratios. Physician's fees were not included. A stepwise multiple regression analysis was computed to determine the predictors of total hospital cost. Median length of stay was 6 days (range, 1 to 63 days), and mortality was 3%. Median hospital cost per discharge was $4408 (range, $1199 to $59 799). Fifty percent of costs were for room charges, 19% for stroke evaluation, 21% for medical management, and 7% for acute rehabilitation therapies. Sixteen percent were admitted to an intensive care unit. Length of stay accounted for 43% of the variance in total cost. Other independent predictors of cost included stroke severity, heparin treatment, atrial fibrillation, male sex, ischemic cardiac disease, and premorbid functional status. We conclude that the major predictors of acute hospital costs of stroke in this environment are length of stay, stroke severity, cardiac disease, male sex, and use of heparin. Room charges accounted for the majority of costs, and attempts to reduce the cost of stroke evaluation would be of marginal value. Efforts to reduce acute costs should be monitored for potential cost shifting or a negative impact on quality of care.

Orthopaedic Manifestations of Chronic Graft-Versus-Host Disease

Chronic graft-versus-host disease (GVHD) is a well-recognized complication of allogeneic bone marrow transplantation (BMT). Musculoskeletal manifestations include joint contractures, polymyositis, polyserositis, and fasciitis. We present 14 patients with orthopaedic complications of chronic GVHD. Long-term conservative management of joint contractures with physical therapy and orthotics was generally successful in restoring patients' premorbid functional status. Surgical release of joint contractures yielded poor results and rendered the affected joints unresponsive to further conservative treatment. Surgical intervention in the treatment of joint contractures resulting from chronic GVHD does not appear qualitatively to improve functional status in patients affected with this disease process.

Illness Presentation in Elderly Patients

Atypical disease presentations, such as delirium, are associated with adverse health outcomes. They are also markers of frailty in elderly people, which is itself associated with adverse hospital outcomes. We investigated the relationship between frailty and atypical disease presentation in predicting adverse hospital outcomes and complications of the hospital course of elderly patients admitted to general medical services. We conducted a cohort study in a large (800 beds) tertiary care university hospital. The prevalence of atypical disease presentations and the incidence of adverse hospital outcomes (death, nursing home admission, prolonged hospital stay, and failure to regain premorbid functional status) were studied in previously well and previously frail elderly patients. Patients were classified as being well or frail on the basis of the premorbid Barthel Index (well, score of > or = 95 [n = 76]; frail, score of < 95 [n = 117]). Frail elderly were older (80 vs 76 years), more often female (62% vs 46%), and less likely to be community dwelling (89% vs 99%). Atypical disease presentation was more common in the frail elderly (59% vs 25%; P < .001). Of those who presented atypically, the frail most often presented with delirium (61%) and the well presented with falls (37%) and delirium (32%). Of the frail elderly with atypical symptoms, 60% had adverse hospital outcomes compared with 32% of the well elderly who presented typically (P < .05). Logistic regression analysis showed that premorbid functional dependence (odds ratio, 2.48; 95% confidence interval, 1.17 to 5.22), atypical disease presentation (odds ratio, 2.37; 95% confidence interval, 1.20 to 4.67), and functional decline at admission (odds ratio, 5.64; 95% confidence interval, 2.37 to 13.44) were all independently predictive of poor hospital outcomes. By contrast, severity of disease, age, and sex did not confer an increased risk of adverse events. Premorbid functional dependency, atypical disease presentation, and functional decline on admission have independent impacts on adverse hospital outcomes. Assessment of each should be incorporated into the routine care of elderly patients.

The availability and reliability of information on the premorbid functional status of stroke patients in hospital

In order to predict outcome after a stroke and set realistic targets for rehabilitation, it is essential to have reliable information on the patient's premorbid functional status. We assessed the availability of information on premorbid continence, mobility and mental status by examining the medical and nursing notes, one week after admission to a teaching hospital, of 164 stroke patients. Simple rating scales were used and results compared to information obtained from patients' relatives. Useful information on previous mobility was obtained from the notes in 58% of cases, on continence in 47%, and mental state in 44%. Although agreement between medical and nursing notes was reasonable (possibly due to sharing of information), agreement with the same information obtained from relatives was very poor. Information on the premorbid functional status of stroke patients is often not available in hospital notes, and when recorded is often inaccurate. Such data should be routinely obtained using standardized measures.

Early stage cervical cancer: psychosocial and sexual outcomes of treatment

Eighty-three women, mean age 45 years, successfully treated by surgery (S) or radiotherapy (RT) for stage 1b cervical cancer were assessed a mean of 97 weeks post treatment. Forty to 50% reported persistent tiredness, lack of energy and weight gain. Sixty per cent had not resumed their full premorbid functional status. Mean scores for anxiety and depression were higher than general population means and this sample scored higher for psychological distress than published data quoted for disease free cancer patients. These women reported many concerns about cervical cancer, most commonly fear of recurrent disease (91%). More than one-third blamed themselves for the disease. There were no significant differences in functional outcome or psychological status between treatment groups or by age or time since treatment. Psychological distress scores were significantly correlated with physical complaints (P < 0.001) and functional outcomes (P < 0.02). For the 61 women who were sexually active, sexual function post-treatment was rated as significantly poorer than subjectively recalled premorbid sexual function (P < 0.005). RT treated patients were more likely to report pain on intercourse and loss of enjoyment. Psychological as well as physical problems were highly correlated with sexual outcome (P < 0.01) 44% were unable to talk adequately with their partners about their experience. The majority felt they needed more information about cervical cancer, its treatment and how to help themselves rehabilitate. Forty-nine per cent would have liked to have had counselling. Even with the same physical morbidity the functional, emotional and sexual status of these women could be improved by giving more attention to their psychological and sexual concerns.