Psychological predictors of chronic posttraumatic stress disorder after motor vehicle accidents

A prospective longitudinal study assessed 967 consecutive patients who attended an emergency clinic shortly after a motor vehicle accident, again at 3 months, and at 1 year. The prevalence of posttraumatic stress disorder (PTSD) was 23.1% at 3 months and 16.5% at 1 year. Chronic PTSD was related to some objective measures of trauma severity, perceived threat, and dissociation during the accident, to female gender, to previous emotional problems, and to litigation. Maintaining psychological factors, that is, negative interpretation of intrusions, rumination, thought suppression, and anger cognitions, enhanced the accuracy of the prediction. Negative interpretation of intrusions, persistent medical problems, and rumination at 3 months were the most important predictors of PTSD symptoms at 1 year. Rumination, anger cognitions, injury severity, and prior emotional problems identified cases of delayed onset.

Psychological predictors of chronic posttraumatic stress disorder after motor vehicle accidents

A prospective longitudinal study assessed 967 consecutive patients who attended an emergency clinic shortly after a motor vehicle accident, again at 3 months, and at 1 year. The prevalence of posttraumatic stress disorder (PTSD) was 23.1% at 3 months and 16.5% at 1 year. Chronic PTSD was related to some objective measures of trauma severity, perceived threat, and dissociation during the accident, to female gender, to previous emotional problems, and to litigation. Maintaining psychological factors, that is, negative interpretation of intrusions, rumination, thought suppression, and anger cognitions, enhanced the accuracy of the prediction. Negative interpretation of intrusions, persistent medical problems, and rumination at 3 months were the most important predictors of PTSD symptoms at 1 year. Rumination, anger cognitions, injury severity, and prior emotional problems identified cases of delayed onset.

Allelic loss on chromosome 22q in epithelioid sarcomas

Epithelioid sarcomas are soft tissue tumors with an indolent, but potentially aggressive, clinical behavior. Distinction from other benign and malignant entities may be a diagnostic dilemma. In this study, we evaluate the presence of loss of heterozygosity (LOH) of chromosome 22q in tumor DNA from 13 epithelioid sarcomas, four epithelioid angiosarcomas, and two epithelioid hemangioendotheliomas, and investigate its possible role in diagnosis. LOH was detected in 6 of 10 (60%) of the informative epithelioid sarcomas. No allele loss was detected in the informative vascular tumors, three angiosarcomas, and two hemangioendotheliomas. Chromosome 22q carries the locus of a tumor suppressor gene, the neurofibromatosis 2 (NF2) gene, which has been shown to be lost or mutated in some NF2-related tumors, sporadic meningiomas, and vestibular schwannomas, as well as a few other tumors. Our data suggest that a region of chromosome 22q may be the locus of a tumor suppressor gene involved in the tumorigenesis of these neoplasms. Genetic alterations of yet-unknown tumor suppressor genes in this region, or even the NF2 tumor suppressor gene, may play a role in epithelioid sarcomas tumorigenesis. The fact that LOH was only detected in epithelioid sarcomas and not in the vascular tumors studied suggests a possible role for this marker in diagnosis.

Long-term outcome of motor vehicle accident injury

OBJECTIVE

To define the psychological outcome at 5 years of a sample of non-head-injured motor vehicle accident victims and identify baseline predictors.

METHODS

Self-report questionnaires were completed by 111 consecutive subjects who had been injured in a motor vehicle accident 5 years earlier and who had been assessed previously in a prospective 1-year study.

RESULTS

Although most subjects reported a good outcome, a substantial minority described continuing social, physical, and psychological difficulties and a quarter of those studied suffered phobic anxiety about travel as a driver or passenger. There was little change in quality of life outcome and effects on travel between assessments at 3 months, 1 year, and 5 years. The prevalence of posttraumatic stress disorder remained approximately 10% throughout the follow-up; most early cases had remitted by 5 years, and a similar number of delayed new onsets had occurred between 1 year and 5 years. PTSD at 5 years was predicted by physical outcome and by postaccident intrusive memories and emotional distress. Compensation proceedings were initiated by 66 subjects and were often prolonged and a cause of distress. There were no significant associations with outcome. Trends for a poor outcome in claimants, especially those not settled at 5 years, may be due to their having more serious physical problems.

CONCLUSION

Psychological complications are important and persistent after injury in a motor vehicle accident, are associated with adverse effects on everyday activities, and pose a challenge for consultation-liaison psychiatry.

Compensation claims following road accidents: a six-year follow-up study

Systematic information was obtained on 96 subjects who were all those seeking compensation from a cohort of 172 consecutive road accident injury victims. Subjects were interviewed immediately after the accident, and again at three months and one year. Further telephone or postal information was obtained about compensation proceedings for up to six years. Compensation proceedings were often prolonged and final settlements were modest and late in relation to the losses suffered. Awards were largely used to make up financial losses. However, they failed to meet needs, especially the considerable early financial problems. There was no evidence that subjects exaggerated their losses; many preferred not to claim or to settle early. There was no evidence that settlement was followed by significant change in clinical state. There was considerable dissatisfaction with the procedures for obtaining compensation. Subjects were often more concerned with recognition of their distress and suffering than with the size of financial settlements. Seeking compensation was not a major predictor of medical and social outcome.

Cancer incidence among predominantly black, rural-poor populations in southern states

BACKGROUND

A seven-county, predominantly black, rural-poor population in Alabama is targeted for a program aimed at improving access to state-of-the-art cancer care. This paper presents combined age-adjusted cancer incidence rates for predominantly black, rural counties in North Carolina and Georgia similar to the Alabama counties and compares these rates with Surveillance, Epidemiology, and End Results (SEER) incidence rates.

METHODS

Cancer incidence data from 1990 to 1993 were obtained from the Georgia Center for Cancer Statistics for 10 rural counties with predominantly black populations. Likewise, cancer incidence data from 1990 to 1993 were obtained for seven rural-poor counties in North Carolina from the North Carolina Central Cancer Registry. SEER incidence rates from 1990 to 1992 were obtained for nine SEER sites.

RESULTS

The overall cancer incidence rate from North Carolina and Georgia is lower by 22% than the SEER rate. Cancer incidence rates for cancers of the breast, colon/rectum, lung, and prostate were at least 15% lower than the SEER rates, while the invasive cervical cancer rate was 1.78 times higher than the SEER rate.

CONCLUSION

Blacks comprise about 50% of the population in these counties. In contrast, the SEER population is predominantly white, and the black population is primarily urban. Estimates of the number of cancer cases in black, rural-poor populations based on SEER incidence rates is not reflective of the cancer experience in these populations.

Modification of patient driving behavior after implantation of a cardioverter defibrillator

Driving habits among recipients of ICDs have not been well characterized previously, yet such information may have implications for development of national policy. This study was undertaken to characterize driving behavior after defibrillator implantation in our patient population. From 1988-1993, 82 ICDs were implanted at the University of Florida. All patients received defibrillator teaching preoperatively and postoperatively with particular emphasis placed on driving restrictions. A standardized questionnaire was developed to ascertain driving behavior, compliance with restrictions, and occurrence of motor vehicle accidents following implantation. The patients were divided into two groups according to whether or not they had received a shock from their device since implantation. Group I patients did, and Group II patients did not. Fifty-two out of 82 (63%, Group I) patients had at least one shock. The remaining 30 patients had received no shocks. Mean age and gender were no different between the two groups. Mean time since implantation was 6 +/- 1.3 years in Group I, compared to 4 +/- 1.5 years in Group II (P = 0.001). Forty-seven out of 52 (90%) and 26 out of 30 (87%) in Groups I and II, respectively, resumed driving after defibrillator implantation. There was no difference in the amount of time that passed prior to resumption of driving. Group I patients drove more, 20.5 +/- 27 miles/day compared to patients in Group II, 8.3 +/- 9.7 miles/day (P = 0.02). No patient experienced device discharge during driving; likewise, no patient was involved in a motor vehicle accident secondary to their device firing. Sixty-seven out of 82 (82%) patients complied with the instructions they thought they heard; seven patients in Group I and eight patients in Group II deliberately did not follow our advice. The majority of patients do comply with physician instructions, although the instructions they remember are not always the instructions given. If a national policy is created to prohibit driving after ICD implantation, effective enforcement may be difficult.

Identical genetic changes in different histologic components of Wilms' tumors

BACKGROUND

In young children and infants, Wilms' tumor is the most common cancer of the kidney. Wilms' tumor exhibits heterogeneous histopathologic features, consisting of rapidly proliferating blastemal and epithelial cells and a stromal component that has heterologous elements (e.g., cartilage, bone, and striated muscle). It is unclear whether the stromal and heterologous components of sporadic Wilms' tumor are neoplastic or should be considered non-neoplastic.

PURPOSE

Our purpose was twofold: 1) to selectively analyze the different histologic tissue components of sporadic Wilms' tumors, including blastemal, epithelial, stromal, and heterologous elements, for loss of heterozygosity (LOH) of the WT1 gene and for expression of the WT1 gene and 2) to determine the role of WT1 gene expression in the development of these tissues.

METHODS

By use of tissue microdissection techniques, various histologic elements (blastema, stroma, epithelium, and striated muscle) of sporadic Wilms' tumor were obtained from specimens taken from 18 patients. DNA was extracted from the dissected tissue fragments, and DNA solutions were amplified by use of the polymerase chain reaction and the polymorphic genomic markers D11S1392 and D11S904 to detect LOH at the WT1 gene locus (11p13). Three selected specimens with heterologous elements and LOH at 11p13 were analyzed for expression of the WT1 gene by means of the in situ reverse transcription-polymerase chain reaction.

RESULTS

Nine (50%) of the 18 specimens showed LOH at the WT1 locus. Although identical WT1 gene deletion was consistently observed in all of the various histologic components of these nine specimens, WT1 gene expression was high in the blastemal and epithelial elements and low in the stromal and heterologous elements.

CONCLUSIONS AND IMPLICATIONS

Identical allelic deletion at 11p13 in all components of the sporadic Wilms' tumors examined suggests that the stromal tissue components are neoplastic rather than non-neoplastic. In conjunction with variable WT1 gene expression in the different histologic components, the results raise the possibility that undifferentiated blastemal cells are the precursors of the stromal and heterologous elements. Morphologically benign stromal and heterologous elements may therefore be derived from neoplastic cells. The developmental state of the various tissue components of Wilms' tumor may be attributed to an altered residual WT1 gene that is required for the maturation of blastemal and epithelial cells but that is not required for the maturation of stromal and heterologous elements.

Outcome of 'whiplash' neck injury

Psychological factors have been alleged to be important in the course and outcome of 'whiplash' neck injury but there is little quantitative evidence. This study uses quantitative methods involving a prospective interview assessment to describe psychological and quality of life predictors, and 3 and 12 month outcome. Consecutive attenders to the Accident and Emergency department of a teaching district hospital with a clinical diagnosis of 'whiplash' neck injury were included and there were follow-up interviews at home. Neck symptoms were recorded, and there was a standard mental-state interview with added questions about post-traumatic symptoms and a semi-structured interview for disability and consequences for quality of life. There was a wide individual variation in course and outcome; the majority of subjects complained of persistent neck symptoms and a sizeable minority reported specific post-traumatic psychological symptoms (intrusive memory, phobic travel anxiety), similar to those described by patients suffering multiple injuries. Social impairment, including effects on travel, were considerable in one-quarter. Reports of persistent neck symptoms were not associated with any baseline psychological variables or with compensation proceedings; psychological factors appeared to be more important in determining the extent of social impairment. We conclude that travel, social and psychological morbidity is substantially greater than previously recognized.

Mapping of a gene for type 2 diabetes associated with an insulin secretion defect by a genome scan in Finnish families

Non-insulin dependent diabetes mellitus (NIDDM) affects more than 100 million people worldwide and is associated with severe metabolic defects, including peripheral insulin resistance, elevated hepatic glucose production, and inappropriate insulin secretion. Family studies point to a major genetic component, but specific susceptibility genes have not yet been identified-except for rare early-onset forms with monogenic or mitochondrial inheritance. We have screened over 4,000 individuals from a population isolate in western Finland, identified 26 families (comprising 217 individuals) enriched for NIDDM and performed a genome-wide scan using non-parametric linkage analysis. We found no significant evidence for linkage when the families were analysed together, but strong evidence for linkage when families were classified according to mean insulin levels in affecteds (in oral glucose tolerance tests). Specifically, families with the lowest insulin levels showed linkage (P = 2 x 10(-6)) to chromosome 12 near D12S1349. Interestingly, this region contains the gene causing the rare, dominant, early-onset form of diabetes MODY3. Unlike MODY3 families, the Finnish families with low insulin have an age-of-onset typical for NIDDM (mean = 58 years). We infer the existence of a gene NIDDM2 causing NIDDM associated with low insulin secretion, and suggest that NIDDM2 and MODY3 may represent different alleles of the same gene.

Alcohol and road traffic accidents

Twenty per cent of a prospective representative sample of subjects suffering road accident injury were classified as 'problem drinkers'. A third had blood alcohol levels > 80 mg/dl at admission. There were few changes in alcohol consumption or drinking in relation to driving at 1 year follow-up. No specialist help was offered during initial or follow-up hospital care.

Non-cardiac chest pain and benign palpitations in the cardiac clinic

OBJECTIVES

To assess the characteristics of consecutive patients referred from general practice with the presenting disorder of chest pain or palpitations, and to determine the outcome at six months and three years.

SETTING

A single consultant teaching hospital cardiac clinic receiving new referrals from a health district.

DESIGN

94 consecutive referrals by general practitioners to a cardiac clinic with the presenting disorder of chest pain or palpitations were assessed at first attendance (research interview, cardiologists' ratings, systematic medical case note information), home interview six months later, and by a postal questionnaire at three years.

OUTCOME MEASURES

Physical and psychological symptoms, limitation of activities, satisfaction with care, and use of health care resources.

RESULTS

39 patients were given a cardiac diagnosis and 51 patients were not given a cardiac or other major physical diagnosis. The non-cardiac group was more likely to be young women, and to report other physical symptoms and previous psychiatric problems. The cardiac and non-cardiac groups reported progressive improvement in presenting symptoms and disability at the six months and three year follow up, but little change in mental state. Even so, three quarters of the non-cardiac subjects described continuing limitation of activities, concern about the cause of their symptoms, and dissatisfaction with medical care.

CONCLUSIONS

A substantial proportion of the consecutive referrals continued to describe symptoms and disability throughout the three years after clinic attendance. Outcome was poor for those who had negative investigations and were reassured that they had no cardiac disorder or other serious physical finding. These results have implications for defining the role of psychological assessment and for the formulation of cost effective clinical measures to (a) minimise disability associated with cardiac disorder; and (b) prevent and treat handicaps in those without major physical diagnoses.

Psychiatric consequences of road traffic accidents

OBJECTIVE

To determine the psychiatric consequences of being a road traffic accident victim.

DESIGN

Follow up study of road accident victims for up to one year.

SETTING

Emergency department of the John Radcliffe Hospital, Oxford.

SUBJECTS

188 consecutive road accident victims aged 18-70 with multiple injuries (motorcycle or car) or whiplash neck injury, who had not been unconscious for more than 15 minutes, and who lived in the catchment area.

MAIN OUTCOME MEASURES

Present state examination "caseness"; post-traumatic stress disorder and travel anxiety; effects on driving and on being a passenger.

RESULTS

Acute, moderately severe emotional distress was common. Almost one fifth of subjects, however, suffered from an acute stress syndrome characterised by mood disturbance and horrific memories of the accident. Anxiety and depression usually improved over the 12 months, though one tenth of patients had mood disorders at one year. In addition, specific post-traumatic symptoms were common. Post-traumatic stress disorder occurred during follow up in one tenth of patients, and phobic travel anxiety as a driver or passenger was more common and frequently disabling. Emotional disorder was associated with having pre-accident psychological or social problems and, in patients with multiple injuries, continuing medical complications. Post-traumatic syndromes were not associated with a neurotic predisposition but were strongly associated with horrific memories of the accident. They did not occur in subjects who had been briefly unconscious and were amnesic for the accident. Mental state at three months was highly predictive of mental state at one year.

CONCLUSIONS

Psychiatric symptoms and disorder are frequent after major and less severe road accident injury. Post-traumatic symptoms are common and disabling. Early information and advice might reduce psychological distress and travel anxiety and contribute to road safety and assessing "nervous shock."

Effective career ladders

Motivation, quality improvement, productivity enhancement. These are just some of the benefits of an effective career ladder program. The key term here is effective. It is easy for laboratory personnel to stagnate professionally if they do not have a career ladder program, but it is even easier for them to become frustrated--even cynical--over a program that fails to live up to its expectations to encourage, support, and reward professional advancement. If you have been looking form some ideas to get your own career ladder program off the ground, the following responses from your colleagues may help as CLMR asks: What makes your career ladder program effective?

Cardiac failure: symptoms and functional status

The associations between exercise capacity, symptoms and specific aspects of quality of life were examined in subjects participating in a trial of the treatment of heart failure. Patients were assessed on entry and after three months treatment. The principle symptoms were fatigue, breathlessness and chest pain. These limited the extent and speed of physical activities, restricted social, leisure and family life and were associated with emotional distress. There were associations between baseline exercise capacity and measures of quality of life. Change in exercise capacity during three months treatment was correlated with changes in measures of symptoms, limitation of activity and quality of life. The findings confirm the value of change in exercise capacity as a measure of functional status and suggest that it should be supported by a limited number of specific measures of quality of life.

Exercise capacity and quality of life in the treatment of heart failure

In a double-blind study comparing two active treatments (digoxin and xamoterol) and placebo in patients with heart failure, improvements in exercise capacity and quality of life were observed in all three groups, with no significant differences. The substantial benefits seen in the placebo group were probably the result of increased attention from the medical and research staff and suggest the therapeutic value of special heart failure clinics. The relationship between exercise and symptomatic/functional status has been unclear. We developed quantitative measures of quality-of-life variables and examined their relationship with exercise capacity. There were significant relationships between change in exercise duration and changes in breathlessness, tiredness, chest pain, walking difficulty, rate of walking, difficulty with daily tasks, speed of daily tasks, mood, and sleeping. This study confirms the validity of measuring change in exercise capacity and demonstrates that specific measurements of quality of life make an important contribution to the evaluation of the treatment of heart failure.

Quality of life in non-insulin-dependent diabetes and a comparison with insulin-dependent diabetes

The reported effects of diabetes on quality of life have been assessed in two groups of attenders at out-patient clinics: 1. One hundred and twenty-one non-insulin-dependent diabetic patients randomly allocated to diet, tablet or ultralente insulin therapy; 2. Fifty-seven patients with insulin-dependent diabetes consecutively attending an out-patient clinic. The overall picture for those with non-insulin-dependent diabetes was of relatively little disruption to most areas of life, but 27% reported considerable loss of enjoyment and reduction in social life. High fasting plasma glucose was significantly associated with fatigue and leisure difficulties. The type of therapy, tablet, diet or insulin, made little difference to psychological, social or attitude variables. Those with insulin dependent diabetes showed similar psychological morbidity, but described a rather different pattern of social consequences with more effects on work and less on leisure.

Prediction of outcome after coronary artery surgery

Coronary artery surgery is usually successful in relieving angina but benefits for quality of everyday life are sometimes disappointing. Generalized linear inter-active modelling (GLIM) was used to examine pre-operation predictions of psychological and social outcome 3 and 12 months after coronary artery surgery. The study identified predictors of return to work (social class, previous employment status), psychiatric outcome (pre-operation mental state) and social adjustment (pre-operation mental state, age, social class). Although our analysis of potential predictors of 1 yr outcome at 3 months after surgery was less detailed, early convalescence is likely to be the best time for clinical identification of those at risk of poor long term outcome. The findings have implications for selection and preparation for surgery and identification of those who might benefit from extra rehabilitation.

Quality of life after coronary artery surgery

Seventy-nine men were assessed using standard interview procedures before and at three and 12 months after coronary artery surgery. At one year, the majority reported relief of angina and reduced difficulty in performing everyday activities, but there was considerable individual variation in changes in quality of life. Overall, there were improvements in mental state, leisure activity, satisfaction and family life, but few benefits for work and sexual relations. For a fifth of patients global quality of life was no better or was worse than before surgery and this poor outcome was not closely related to physical state. Patients who described psychological symptoms or had a 'passive' approach to their illness before operation were less likely to have a good outcome. It is probable that the benefits of surgery could be substantially increased by provision of better facilities including simple individually planned preparation and rehabilitation. The study demonstrates that specific interview based ratings can be used to quantify changes in those aspects of quality of life which are most important to patients and their families.