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Whiplash is a poorly understood problem that attracts accusations of malingering and compensation neurosis. Recent research has revealed a variety of occult lesions that can be responsible for the chronic pain and suffering after whiplash; however, appropriate diagnostic techniques are still either lacking or not widely used. While there are reasonable options for acute management there is no proven therapy for the chronic situation.
A retrospective analysis of electronystagmography (ENG) subtests performed on 93 acutely dizzy patients in the emergency room (ER) shows that "pendular tracking" has high sensitivity and specificity for determining central pathology. Small combinations of subtests altered sensitivity or specificity only slightly over pendular alone. Detection of spontaneous nystagmus was also helpful in ruling out "other" diagnoses such as hyperventilation syndrome, psychogenesis, or malingering. Popularity of the shortened ENG in the ER was evidenced by the high rate of charting of results and the frequency with which the test was requested after the study terminated. ENG also identified four cases of previously unsuspected central nervous system (CNS) lesion.
Sleepwalking is one of the parasomnias, a group of disorders that also includes night terrors, nocturnal enuresis and nightmares. This disorder of arousal is much more common in children than in adults, and it is commonly associated with other parasomnias. Sleepwalking typically occurs during the first three hours of sleep, when sleep stages 3 and 4 (non-rapid-eye-movement sleep) are most prevalent. The episodes usually last 30 seconds to 30 minutes. The differential diagnosis of sleepwalking includes partial complex seizures occurring during sleep, rapid-eye-movement behavior disorder, night terrors, malingering, dissociative phenomena and medication effects. The treatment of sleepwalking in children includes providing a regular sleep-wake schedule, ensuring that the child has sufficient sleep and reassuring the parents. Medications and psychotherapy may be indicated in some adult patients.
Historically, the use of the insanity defense has been limited although not exclusively to those with a psychotic mental disorder at the time of the crime. Occasionally, an insanity acquittee may primarily suffer from a personality disorder at the time of commitment to the psychiatric hospital. Such examples can include someone with a personality disorder who malingers psychosis and legal insanity or who at the time of the crime may have been suffering from a drug-induced or brief reactive psychosis. One such case will be presented as well as dilemmas created for the clinician and forensic evaluator. In addition, pertinent medical and psychological literature and legal case precedents will be discussed. Finally, a proposed guideline for the treatment and evaluation of the personality-disordered insanity acquittee will be offered, focusing specifically on the aspects of the personality disorder that contribute to the individual's dangerousness.
Short episodes of electrical stimulation were applied to the right quadriceps muscle of healthy subjects at different times during 60 second sustained voluntary muscle contractions at different levels ranging from 0% to 100% of maximal voluntary contraction force. The amplitude of electrically-induced increments of torque (delta T) has been shown to depend upon both the level of muscular contraction and time from the beginning of the contraction. We have considered that the dependence of delta T upon the time from the beginning of contraction reflects muscle fatigue. A group of subjects was asked to simulate fatigue and to decrease the level of contraction to 50% of the required level. They demonstrated strikingly different dependencies of delta T upon time from the beginning of contraction. Two kinds of malingering have been analyzed with the help of a simple mathematical representation of the dependence of delta T upon actual voluntary contraction force. The described method is promising for studying muscular fatigue of central and peripheral origin and for detecting malingerers.
Most probably common in emergency departments, but still not well studied in this context, the disorders formerly called "hysteria" are now included in the group "Somatization, undifferentiated somatoform, conversion and dissociative disorders" (SSCD disorders) DSM IV. Their common presentation is that of idiopathic somatic symptoms linked with mental disorders. In the emergency department these symptoms confront physicians who generally do not have extensive psychiatric training. The symptoms occur, and disappear, undetermined by the patients, who are genuinely ill and not malingering. Aside from the somatisation disorder, which by definition is chronic, invalidating and rare, the other disorders (SCD) can: be contingent on the picture of another acute, easily recognisable mental disorder; or, on the other hand, be highly reactional and transient; or constitute the "somatic presentation" of an anxious disorder, the panic attack, well known in somatic emergencies. Management is based on diagnostic considerations and by the difficulties of the patient to accept a psychic cause of the symptoms whereas he is experiencing an organic disorder. The possibilities of discussing such psychogenesis in the context of the emergency department are slight, and the best course is often to adopt a pragmatic and prudent medical approach. An essential point is respect of the patient and his ideas. The legal provision, which already exists, for the presence of psychiatrists in emergency departments should lead to physician-psychiatrist cooperation that would be beneficial for these patients.
This study was undertaken to determine the association between health providers' stress and performances, and patients who presented with disability forms that the providers did not feel were justified. Two questionnaires were given to health-care providers at the Family Practice Clinic, Martin Luther King/Drew Medical Center, Los Angeles, California. One questionnaire assessed the level of stress they suffered from, and a second questionnaire assessed how these types of patients may affect their general performance. The data suggested that the performance of providers was definitely affected by hostile, demanding, threatening, and malingering patients. The students, residents, nurses, and clinic administrative staff were all affected. Third-year medical students and foreign-trained doctors appeared not to be affected as much, probably because of a lack of knowledge about the "system" or because they preferred not to "rock the boat".
Factitious disorders are fabricated illnesses. Conceptually, these disorders lie in the gray zone between malingering and real diseases. Clinical awareness will prevent unnecessary diagnostic and therapeutic interventions. The author profiles those patients and symptoms that accompany factitious disorders as well as factitious disorders by proxy. In the case of the latter, child abuse may be uncovered as well. Although rare, factitious disorders will be present in a busy primary care practice. Clinical detection based on patient profiles can aide discovery. Early recognition and management may prevent a chronic and debilitating course from culminating into one in which the person becomes a "professional patient."
OBJECTIVE: To search for syndromes in Persian Gulf War veterans. PARTICIPANTS: Two hundred forty-nine (41%) of the 606 Gulf War veterans of the Twenty-fourth Reserve Naval Mobile Construction Battalion living in 5 southeastern states participated; 145 (58%) had retired from service, and the rest were still serving in the battalion. DESIGN: Participants completed a standardized survey booklet measuring the anatomical distributions or characteristics of each symptom, a booklet measuring wartime exposures, and a standard psychological personality assessment inventory. Two-stage factor analysis was used to disentangle ambiguous symptoms and identify syndromes. MAIN OUTCOME MEASURES: Factor analysis-derived syndromes. RESULTS: Of 249 participants, 175 (70%) reported having had serious health problems that most attributed to the war, and 74 (30%) reported no serious health problems. Principal factor analysis yielded 6 syndrome factors, explaining 71% of the variance. Dichotomized syndrome indicators identified the syndromes in 63 veterans (25%). Syndromes 1 ("impaired cognition," characterized by problems with attention, memory, and reasoning, as well as insomnia, depression, daytime sleepiness, and headaches), 2 ("confusion-ataxia," characterized by problems with thinking, disorientation, balance disturbances, vertigo, and impotence), and 3 ("arthro-myo-neuropathy," characterized by joint and muscle pains, muscle fatigue, difficulty lifting, and extremity paresthesias) represented strongly clustered symptoms; whereas, syndromes 4 ("phobia-apraxia"), 5 ("fever-adenopathy"), and 6 ("weakness-incontinence") involved weaker clustering and mostly overlapped syndromes 2 and 3. Veterans with syndrome 2 were 12.5 times (95% confidence interval, 3.5-44.8) more likely to be unemployed than those with no health problems. A psychological profile, found in 48.4% of those with the syndromes, differed from posttraumatic stress disorder, depression, somatoform disorder, and malingering. CONCLUSION: These findings support the hypothesis that clusters of symptoms of many Gulf War veterans represent discrete factor analysis-derived syndromes that appear to reflect a spectrum of neurologic injury involving the central, peripheral, and autonomic nervous systems.
Pain problems occupy muct of the time and therapeutic efforts of physicians. Nonmedical practitioners and cultists have likewise attracted many people seeking pain relief. In many cases the cultists seem to do as well as the ethical practitioner. A realistic view of pain takes into account the significance of the pain to the individual, the degree of anxiety and/or depression that contributes to the aggravation and prepetuation of the pain, and finally the manipulative and defensive value that the pain may have to the individual. A purely mechanistic approach which would attempt to distinguish "real pain", ie, pain associated with a demonstrable lesion, and "imagined pain" will prove counterproductive. Likewise accusations of consciously pretended pain or malingering tend to be nontherapeutic. A sound therapeutic approach is to regard all pain as real, realizing that the pain of depression may be the most unendurable type of pain. Major psychotropic drugs for relief of anxiety and for treatment of depression have appplication in the management of selected pain problems.
As research strategies for studying competence to stand trial evolve, interest in the decision-making process of clinicians and the factors that may influence the clinical process has grown. This study assesses the reliability of clinical opinions regarding the basis for competence decisions and the influence that severity of the offense has upon the clinical determinations of competence. One-hundred eighty-eight criminal defendants in an outpatient forensic clinic were evaluated by pairs of clinicians (psychiatrists and clinical psychologists). Each clinician was asked to complete a questionnaire regarding the defendant's overall degree of competence on a 0 to 10 rating scale, ability to understand charges and proceedings and ability to assist in one's defense, and the likelihood that the defendant was malingering. Results demonstrated a high degree of reliability not only in clinical determinations of competence (agreement in 187 of 188 cases), but in estimates of overall degree of competence and the basis for findings of competence or incompetence (e.g., the Dusky criteria). Misdemeanor defendants were more likely to be found incompetent to stand trial. However, degree of competence was only associated with offense severity for defendants found incompetent to stand trial. There was no relationship between these variables for competent defendants. These results suggest that clinicians may require a higher degree of competence for defendants charged with more serious offenses, although this process may not apply equally to competent and incompetent defendants. Furthermore, conducting competence interviews jointly appears to increase the concordance of competence opinions.
The recording of olfactory evoked potentials in healthy humans, using a continuous flow olfactory stimulator, is described. A stimulator pushed inert gas (N2) in a continuous flow through the nose at a rate of 4 l/min. At fixed 30-second intervals, (32 times) the flow was replaced by an equal amount of CO2, a trigeminal stimulant. Each pulse lasted 200 ms. An electronic timing circuit triggered both the stimulator and the recorder. Signal acquisition was performed using an Evoked Potential Recorder (Nicolet Compact Four by Nicolet Biomedical Instruments), triggered by the stimulator. Using this stimulator device reliable olfactory evoked potentials can be recorded in a clinical setting. Since this is a non invasive technique which can be used to test olfactory function whether or not the patient cooperates, it is expected to become widely used, particularly in non collaborating patients and in those suspected of malingering.
The objective evaluation of smell is the least used functional ear, nose and throat exploration. Evoked potentials can be recorded after chemical olfactory stimulation using a method similar to recording cortical auditory evoked potentials. Our results with this technique and peppermint oil as the stimulant were fully satisfactory. In 10 patients with normal smell, a characteristic wave with a long latency was recorded in the absence of auditory and visual stimuli. In contrast, in 10 anosmic patients this characteristic recording was absent. The easy recording technique proposed here can be useful for olfactory assessment of objective disorders, detection of malingers, and medical-legal reports.
Olfactory testing has been of minor interest in Occupational Health due to the lack of testing methods able to detect malingering. On the other hand there is evidence that occupational exposure to several, mainly neurotoxic, substances may result in olfactory damage. We have combined three different testing methods in one package in order to assure a forensic-degree level of results. The package consists of: 1. primary neuron functionality testing with a single olfactory stimulant; 2. olfactory-trigeminal discrimination testing with regular sniff-test; 3. odor identification score by Doty's UPSIT test. Final judgement of a link between olfactory system impairment and occupational exposure to chemicals requires a good knowledge of the present and past occupational exposure and of the general conditions of the patient. It requires collaboration between the Occupational Health specialist and the expert in Olfactology and may be completed with endoscopy, radiography and other specific controls. We suggest that a more extensive use of appropriate olfactory testing should be established at least for special risk groups of workers. This will not only detect occupational health damage that would otherwise have remained unknown, but can also furnish new information on the neurotoxic effects of many inhalable chemicals.
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