Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0012833 (dizziness)
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Using self-rating questionnaires, 63 patients with social phobia but without a history of spontaneous panic attacks reported on their symptoms and traits, and on the development of their social phobia. The anxiety responses were composed of many symptoms (median = 14) of marked intensity, with blushing, trembling, cognitive difficulties, communication difficulties, and fears of the impression they make on others as cardinal symptoms. In contrast to the symptom pattern seen in spontaneous panic attacks, dizziness, chest discomforts, and difficulty in getting air were infrequent. The acute responses were generally followed by prolonged reactions with depressed mood, lowered self-esteem, and increased fears of similar situations. Most often the anticipatory anxiety was both intense and of long duration. Marked childhood traits of insecurity were reported by some patients, but these traits did not seem to be a general forerunner of the social phobia. Most patients had a gradual onset of the disorder between the age of ten and twenty, with increasing traits of social insecurity and anxiety responses developing simultaneously, during a period when a group of healthy controls reported that their insecurity was decreasing.
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PMID:Core symptom pattern of social phobia. 916 88

In this multicenter, parallel-group, placebo-controlled, fixed-dose study, the efficacy, safety, dosing characteristics, and discontinuation of clonazepam were analyzed in patients with panic disorder. Four hundred thirteen patients were randomly assigned to receive placebo or one of five fixed daily doses of clonazepam (0.5 mg, 1.0 mg, 2.0 mg, 3.0 mg, and 4.0 mg). After 3 weeks of dose escalation, the fixed dose was given for 6 weeks (the dose-maintenance phase) and then was tapered during a 7-week discontinuance phase. The completion rates for the dose-maintenance phase ranged from 59 to 85% for the clonazepam groups (74% for the placebo group). Efficacy measurements at the end of the dose-maintenance phase indicated clinical improvement in all treatment groups but with a clear differentiation of the four higher doses of clonazepam from the 0.5-mg dose and placebo. The minimum effective dosage, as determined by the Williams' test, was 1.0 mg daily. Dose-response analysis showed that daily dosages of 1.0 mg and higher were equally efficacious in reducing the number of panic attacks. All treatments were well tolerated. Somnolence and ataxia were reported more often by patients in the 3.0- and 4.0-mg groups; depression, dizziness, fatigue, and irritability, although not showing dose-relatedness, were reported by more patients taking clonazepam than placebo. During the discontinuance phase, most patients worsened from their condition at the end of the dose-maintenance phase but did not revert to that at baseline. In addition, with the tapering schedule chosen for this study, patients in all treatment groups tolerated the discontinuance of clonazepam. Daily doses of 1.0 to 2.0 mg of clonazepam offered the best balance of therapeutic benefit and tolerability.
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PMID:Clonazepam in the treatment of panic disorder with or without agoraphobia: a dose-response study of efficacy, safety, and discontinuance. Clonazepam Panic Disorder Dose-Response Study Group. 931 90

To date, the quantitative psychopathology of panic disorder (PD) has been less well studied than that of other psychiatric conditions such as schizophrenia or major depression. The aim of the present study was to assess the frequency and factorial grouping of symptoms in a naturalistic sample of PD patients. A total of 274 consecutive cases of PD who contacted an out-patient clinic in Barcelona, Spain were assessed by two experienced interviewers. The assessment instruments included the Structured Clinical Interview for DSM-III-R Upjohn version (SCID-UP-R) and an inventory of panic attack symptoms based on DSM-III-R. Of the patients who presented at the unit during the assessment period, 8.5% presented with PD. Palpitations, shortness of breath, fear of dying and dizziness were the most frequent and intense symptoms reported by the PD patients. Principal-component analysis revealed four factors which accounted for 57% of the variance, including 'cardiorespiratory' (26.1%) and 'vestibular' (15.1%) factors, and two additional factors with mixed symptoms. The frequency of presentation of symptoms was similar to that reported in other studies. However, some discrepancies were observed that may be attributed to transcultural differences as well as to terminological problems and the range of symptoms assessed. These factors may also explain some of the differences found in factor analysis groupings in previous studies. Our findings support the symptom subtyping of PD.
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PMID:Semiology and subtyping of panic disorders. 957 Apr 87

The primary objectives of this multicenter study were to determine the efficacy and safety of moclobemide, a selective reversible inhibitor of monoamino oxidase A, as drug treatment in DSM-III-R panic disorder with and without agoraphobia. In a comparative double-blind, randomized parallel-group design with fixed-flexible dose moclobemide 450 mg per day was compared to clomipramine 150 mg per day, as that drug was considered standard treatment of panic disorder in Europe. 135 patients were randomized and treated for a period of eight weeks. No other treatment was given. By the end of week 8, 49% of the patients treated with moclobemide and 53% of those treated with clomipramine were seen as treatment responders since they were without panic attacks. 78% of the patients in the moclobemide and 88% in the clomipramine group were considered responders according to clinical global impression of change. No significant differences were found between the two treatments at week 8. Adverse events were observed with significantly higher frequency among patients treated with clomipramine, particularly due to anticholinergic side effects. Close to 20% of those treated with moclobemide experienced headache, dizziness, nausea, insomnia, or dry mouth, but other adverse effects were infrequent. In conclusion, moclobemide in a dose of 450 mg per day seems to be a good drug alternative for treatment of panic disorder with and without agoraphobia.
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PMID:The efficacy and safety of moclobemide compared to clomipramine in the treatment of panic disorder. 1036 62

Disorders of the cardiovascular system are common. Heart pain is one of the most frequent complaints leading patients to seek medical help. Although psychologically conspicuous behaviour in patients with functional cardiac complaints are well known, they are--if at all--diagnosed quite late. Descriptive diagnostics of functional cardiac complaints according to the International Classification of Diseases (ICD-10, Chapter 5) are discussed (Figure 1). Possible physical causes of the disease must first be excluded. In a second step it must be clarified whether the complaints even those non-verbally conveyed are due to psychic illness in a narrower sense. Anxiety and depressive disorders must be taken into consideration here. If the patient demonstrates an avoidance behavior in the case of anxiety, than an agoraphobia can be assumed; in episodic paroxysmal fear on can assume panic attacks in which vegetative anxiety equivalents such as shortness of breath, numbness, palpitation of the heart, tachycardia and chest pain are prominent often accompanied by trembling, perspiration, nausea and dizziness. The different depressive disorders are characterized by a dejected mood, loss of interest, loss of enthusiasm and drive reduction; the disorders are divided up according intensity and course. Within the scope of depressive physical symptoms, frequently unpleasant sensations and pain in the chest area are described along with concern, despair, and an increase in self-observation. If no psychic disturbance in a narrower sense can be diagnosed, then the diagnosis of a somatoform disorder allows for this behavior. It is characteristic for this category of illness that the repeated presentation of physical symptoms in connection with the persistent demand for medical treatment may be observed although no physical causes can be demonstrated. The patients insist that their complaints are of a physical origin despite the doctor's assertion that this is not the case. If the symptoms are related to vegetative innervated organs then one speaks of somatoform autonomous functional disorders (F45.3, Table 1). Cardiovascular disorders fall within this scope. Further diagnoses within the spectrum of somatoform disorders are hypochondric and somatization disorders which demonstrate a variety of symptoms and inconsistent and frequently changing complaints. If a descriptive diagnosis can correspondingly be made then further analysis of the disorder must be carried out in order to reach an indication for psychotherapeutic treatment. From a psychodynamic point of view, the personality- and conflict-related background of the disturbance is relevant. Quite often unconscious ambivalent separation conflicted--be they real are fantasized situations of being left or being left alone--may be observed to trigger cardiovascular symptoms. In the cognitive-behavioral therapeutic tradition an exact analysis of the patients symptomatology is carried out in which prior and actual cause factors of the symptoms are looked for. Irrespective of the different approaches, information on the context of the complaints both on a biological, intrapsychic and interpersonal level is necessary for psychosomatic diagnostics. The better the causal conditions are known on the basis of which functional cardiovascular complaints have arisen, the easier it is to recognize those factors that will influence a change and allow a therapeutic approach. This is best done in cooperation with practitioners and internists who still have a key position in the diagnosis and treatment of patients with functional cardiac disorders. The ways and means in which they conduct the anamnesis is decisive in leading their patients to regard psychosomatic diagnostics as being either stuck in the so-called "psycho corner" or as a helpful relationship which they can accept.
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PMID:[Diagnosis of functional heart complaints from the psychosomatic viewpoint]. 1037 96

This study surveys Khmer refugees attending two psychiatric clinics to determine both the prevalence of panic disorder as well as panic attack subtypes in those suffering panic disorder. A culturally valid adaptation of the SCID-panic module, the Cambodian Panic Disorder Survey (CPDS), was administered to 89 consecutive Cambodian refugees attending these psychiatric clinics. Utilizing culturally sensitive panic probes, the CPDS provides information regarding both the presence of panic disorder and panic-attack subtypes during the month prior to interview. Of 89 patients surveyed at two psychiatric clinics, 53 (60%) currently suffered panic disorder. Among the 53 patients suffering panic disorder, the most common panic attack subtypes during the previous month were the following: "sore neck" [51% of the 53 panic disorder patients (PDPs)], orthostatic dizziness (49% of PDPs), gastrointestinal distress (26% of PDPs), effort induced (21% of PDPs), olfactory induced (21% of PDPs), and "while-sitting dizziness" (16% of PDPs).
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PMID:Panic disorder among Cambodian refugees attending a psychiatric clinic. Prevalence and subtypes. 1107 60

It is a well-known fact, and there are several publications on this matter, the links between panic attacks, simulation, anxiety, depression and lightheadedness or imbalance, but in our perusal of the related literature no connection between pathological mourning, dizziness and imbalance was found. In this paper are reported the outcomes of a prospective study of 58 patients suffering vertigo and imbalance as well and psychiatrically assessed. Pathologic mourning shows its predominance among otic vertiginous. This feature, we think, should be investigated when collecting the anamnesis of patients complaining of dizziness and/or imbalance in order to planning the appropriate treatment.
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PMID:[Vertigo, imbalance and mourning]. 1107 77

Panic disorder (PD) is one of the most common psychiatric illnesses in Thailand but the picture of PD in Thailand is not clear. Therefore, the objective of this research was to review, summarize, and analyse data from research reports concerning the clinical aspects of PD in Thailand. Relevant papers were searched comprehensively. Four groups of data including prevalence and incidence rates, sex differences, clinical symptoms during panic attacks, and scores of the Hamilton anxiety scale (HAM-A) were extracted where available. Data thus obtained were then grouped and compared. It was found that 2.1 per cent to 12.4 per cent of patients who visited the psychiatric outpatient clinic for the first time were diagnosed as having PD. Males were affected at a similar rate to females with a ranging ratio of female:male from 1.3:1 to 0.67:1. The most common symptoms during panic attacks were palpitations, chest pain or discomfort, and dizziness or vertigo, similar to South American studies. Regarding scores of original HAM-A, mean somatic anxiety scores of PD patients who attended the cardiology clinic were significantly higher than generalized anxiety disorder patients (15.0 vs 9.8, p < 0.05). PD patients who attended the psychiatric clinic had higher mean scores of HAM-A when compared to PD patients who visited the cardiology clinic, but it was not statistically significant (27.7 vs 26.6, p > 0.05). However, the fear item of PD patients at the psychiatric clinic had significantly higher scores (2.1) than the other one (0.7). The difference between these findings and those of Western studies may be caused by cultural factors. Thai men tend to react more promptly to panic attacks and seek medical attention while women mostly attributed their symptoms to "Air Disease". However, incidence rates from other rural areas are lacking. Before conclusions can be drawn, research on epidemiologic data in the community should be further investigated.
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PMID:Panic disorder in Thailand: a report on the secondary data analysis. 1114 81

We used structural equation modeling (SEM) to test the hypothesis that childhood instrumental and vicarious learning experiences influence frequency of panic attacks in young adulthood both directly, and indirectly through their effects on anxiety sensitivity (AS). A total of 478 university students participated in a retrospective assessment of their childhood learning experiences for arousal-reactive sensations (e.g., nausea, racing heart, shortness of breath, dizziness) and arousal-non-reactive sensations (i.e., colds, aches and pains, and rashes). SEM revealed that learning history for arousal-reactive somatic symptoms directly influenced both AS levels and panic frequency; AS directly influenced panic frequency; and learning history for arousal-non-reactive symptoms directly influenced AS but did not directly influence panic frequency. These results are consistent with the findings of previous retrospective studies on the learning history origins of AS and panic attacks, and provide the first empirical evidence of a partial mediation effect of AS in explaining the relation between childhood learning experiences and panic attacks in young adulthood. Implications for understanding the etiology of panic disorder are discussed.
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PMID:Causal modeling of relations among learning history, anxiety sensitivity, and panic attacks. 1128 Mar 42

The aim of this study was to assess the prevalence of symptoms of panic disorder in a representative community sample of people with dizziness and to compare the profile of those whose panic was consistently linked to attacks of dizziness with those in whom dizziness was just one of many, variable somatic symptoms of panic. Validated questionnaires assessing physical and psychological symptoms, occupational disability, and handicap were administered to 128 people reporting dizziness in an epidemiological survey. Nearly two thirds of the sample reported having panic attacks, and one in four met key criteria for panic disorder. People whose panic symptoms were consistently associated with dizziness reported higher rates of vertigo than those with panic unrelated to dizziness, and higher rates of fainting, agoraphobic behavior, and occupational disability than either comparison group. Explanation of perceptual-motor triggers for disorientation may increase the predictability of attacks, thus reducing vulnerability to dizziness-provoked panic.
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PMID:Panic disorder with agoraphobia associated with dizziness: characteristic symptoms and psychosocial sequelae. 1137 77


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