[The phenomenon of covert self-mutilation in the surgical routine]. / Das Phänomen der heimlichen Automutilation im chirurgischen Alltag.

Factitious disorders are conditions which are unknown to many physicians but have a prevalence of 1-5 % in outpatient departments and hospitals. In order to avoid prolonged and complicated (false) treatment in surgery this article gives a review of the definition, epidemiology and pathogenesis of factitious disorders as well as clinical symptoms and therapy options. A focus is placed on the identification of patients, treatment strategies and the prevention of malpractice. Additionally, clinical features of the disorder are illustrated with the description of some characteristic cases.

[Somatoform vertigo syndromes]. / Nicht-organischer Schwindel.

About 30 % of patients presenting to general practitioners complain of episodic or chronic vertigo or dizziness symptoms mostly with substantial impact on their daily living and activities. 30 to 50 % of the dizziness disorders are organically not sufficiently explained and are caused by mental or psychosomatic diseases. Somatoform dizziness syndromes can occur without a preceding vestibular disorder (e. g., primary somatoform dizziness) or they can develop in consequence of an organic vestibular disorder (secondary somatoform dizziness). However, it often takes months or even years until the correct diagnosis is made and an appropriate psychosomatic therapy can be initiated. Therefore, it is essential for the course of the disease that at an early stage not only careful interdisciplinary organic but also psychosomatic diagnostics are applied.

[Psychosomatic vertigo disorders]. / Psychosomatische Schwindelerkrankungen.

Somatoform vertigo is one of the most frequent forms of vertigo, alongside neuropathia vestibularis and benign peripheral positional vertigo. False diagnoses often lead to patients suffering from symptoms for periods of months or even years, which imposes significant limitations on their working and private lives. An early interdisciplinary diagnosis and the consequent timely commencement of a specific psychosomatic therapy is thus essential. Somatoform vertigo can be caused by many different psychological disorders. The clinical symptomatology, diagnosis and differential diagnosis are described and illustrated by case vignettes. Risk factors and preventive measures are briefly summarized.

[Dizziness from a psychosomatic perspective]. / Schwindel aus psychosomatischer Sicht.

Somatoform dizziness is one of the most frequent forms of dizziness besides vestibular neuritis and benign peripheral positional vertigo. Due to false diagnoses patients often suffer from the symptoms for months and even years and because of this the working and private activities are severely restricted. An early interdisciplinary diagnosis is very important and a specific psychosomatic therapy should be started as early as possible. Somatoform dizziness can be due to a variety of mental or psychosomatic disorders. It can occur without a preceding peripheral vestibular disorder (primary somatoform dizziness) or it can develop after a peripheral vestibular disorder (secondary somatoform dizziness). The clinical symptomatology, diagnosis and differential diagnosis are described and illustrated by clinical vignettes. Risk factors and preventive measures are briefly summarized.

[Diagnosis of vertigo: keep an eye on central eye movement disorders]. / Diagnose von Schwindel mit besonderem Blick auf Augenbewegungsstörungen.

With specialist knowledge ophthalmologists can make a valuable contribution to the interdisciplinary work-up of patients with vertigo as the leading symptom. The neuro-ophthalmological examination of eye movements by an ophthalmologist and/or orthoptist is an important contribution because the various vertigo syndromes can only be correctly evaluated by a combined examination of the vestibular and ocular motor systems. If the ophthalmologist is the first doctor to examine a patient suspected disorders from other specialist fields can be indicated, in particular neurology and otorhinolaryngology. When taking the patient history the ophthalmologist should inquire about the type and duration of the vertigo, triggering or modifying factors and accompanying symptoms. This is followed by a systematic examination of the eye position and the different types of eye movements, the head-impulse test and a special examination to check for the presence of nystagmus.

Who is at risk for ongoing dizziness and psychological strain after a vestibular disorder?

Patients with vestibular vertigo syndromes often suffer from anxiety and depression, whereas patients with psychiatric disorders often experience subjective unsteadiness, dizziness, or vertigo. Thus, it has been hypothesized that the vestibular system may be interlinked with the emotion processing systems. The aim of the current study was to evaluate this hypothesis by correlating vestibular and psychiatric symptoms with the course of the disease over 1 year. This interdisciplinary, prospective, longitudinal study included a total of 68 patients with acute vestibular vertigo syndromes. Four subgroups of patients with benign paroxysmal positioning vertigo (BPPV, n=19), acute vestibular neuritis (VN, n=14), vestibular migraine (VM, n=27), or Menière's disease (MD, n=8) were compared. All patients underwent neurological and neuro-otological examinations and filled out standardized self-report inventories including the Vertigo Symptom Scale (VSS), the Vertigo Handicap Questionnaire (VHQ) and the Symptom Checklist 90R (GSI, SCL-90R) at five different times (T0-T4) in the course of 1 year. VM patients experienced significantly more "vertigo and related symptoms" (VSS-VER), "somatic anxiety and autonomic arousal" (VSS-AA), and "vertigo induced handicap" (VHQ) than all other patients (P<0.001-P=0.006). Patients with a positive history of psychiatric disorders had significantly more emotional distress (GSI, SCL-90R), regardless of the specific phenomenology of the four diagnostic subgroups. Finally, fluctuations of vestibular excitability correlated positively with the extent of subjectively perceived vertigo. VM patients are significantly more handicapped by vertigo and related symptoms. They show significantly elevated fluctuations of vestibular excitability, which correlate with the (subjective) severity of vertigo symptoms.

[Somatoform vertigo syndrome]. / Somatoforme Schwindelsyndrome.

Nearly 50% of the patients in general medicine practice suffer from vertigo. In specialized vertigo clinics approximately 50% of the patients have either a primary or secondary somatoform vertigo, which develops after a peripheral vestibular disorder (in nearly 30%). The different subgroups of somatoform vertigo and a pathogenetic model for the two forms of somatoform vertigo are presented. Interesting interactions between neuro-anatomical, neurophysiological and psychological mechanisms concerning anxiety and vertigo are described. Therapeutic principles which are important for the treatment of patients with complex somatoform vertigo disorders are described.

Validation of the German version of the Vertigo Symptom Scale (VSS) in patients with organic or somatoform dizziness and healthy controls.

OBJECTIVE: The objective of this study was to validate the German version of the Vertigo Symptom Scale (VSS) and to determine its ability to differentiate the type, frequency, and severity of balance disorders. The scale (34 items) was designed by Yardley and coworkers and has been already validated in its English and Spanish versions. METHODS: 98 patients with organic vertigo syndromes, 90 patients with somatoform (psychogenic) dizziness and 56 healthy controls were evaluated with the VSS and additional standardized questionnaires regarding distress (SCL-90R), quality of life (SF-36), anxiety and depression (HADS). In order to differentiate organic from somatoform dizziness all patients underwent detailed clinical neurological and vestibular neurophysiological testing. RESULTS: The two identified subscales 'vertigo and related symptoms' (VER) and 'somatic anxiety and autonomic arousal' (AA) had good internal consistencies (Cronbach's alpha: VER 0.79; AA 0.89). Test-retest correlations were r = 0.75 for VER and r = 0.75 for AA. VER could discriminate well between dizziness patients and healthy controls. AA discriminated moderately between somatoform and organic dizziness. We found close relations between the AA scale and different measures of emotional distress. Correlations between VER and measures of emotional distress were weaker. CONCLUSION: The German version of the VSS has good reliability and validity in the detection of different vertigo syndromes. Measurement of anxiety symptoms can be helpful to identify patients with somatoform dizziness.

Interaction of somatoform and vestibular disorders.

BACKGROUND: The high coincidence of organic vestibular and somatoform vertigo syndromes has appeared to support pathogenic models showing a strong linkage between them. It was hypothesised that a persisting vestibular dysfunction causes the development of anxiety disorders. OBJECTIVE: To determine the relation between vestibular deficits and somatoform vertigo disorders in an interdisciplinary prospective study. METHODS: Participants were divided into eight diagnostic groups: healthy volunteers (n=26) and patients with benign paroxysmal positioning vertigo (BPPV, n=11), vestibular neuritis (n=11), Menière's disease (n=7), vestibular migraine (n=15), anxiety (n=23), depression (n=12), or somatoform disorders (n=22). Neuro-otological diagnostic procedures included electro-oculography with rotatory and caloric testing, orthoptic examination with measurements of subjective visual vertical (SVV) and ocular torsion, and a neurological examination. Psychosomatic diagnostic procedures comprised interviews and psychometric instruments. RESULTS: Patients with BPPV (35.3%) and with vestibular neuritis (52.2%) had pathological test values on caloric irrigation (p<0.001). Otolith dysfunction with pathological tilts of SVV and ocular torsion was found only in patients with vestibular neuritis (p<0.001). Patients with Menière's disease, vestibular migraine, and psychiatric disorders showed normal parameters for vestibular testing but pathological values for psychometric measures. There was no correlation between pathological neurological and pathological psychometric parameters. CONCLUSIONS: High anxiety scores are not a result of vestibular deficits or dysfunction. Patients with Menière's disease and vestibular migraine but not vestibular deficits showed the highest psychiatric comorbidity. Thus the course of vertigo syndromes and the possibility of a pre-existing psychopathological personality should be considered pathogenic factors in any linkage between organic and psychometric vertigo syndromes.

Quality of life in patients with chronic urticaria is differentially impaired and determined by psychiatric comorbidity.

BACKGROUND: Chronic urticaria (CU), one of the most common skin disorders, is characterized by spontaneous recurrent bouts of weals and pruritus and associated with severely impaired quality of life (QoL). OBJECTIVES: To determine what aspects of life quality are affected and to characterize the factors that impact on QoL in CU patients. SUBJECTS AND METHODS: This interdisciplinary interview/questionnaire-based study included 100 patients admitted to a University Hospital Dermatology Department for the identification of underlying causes of CU; 96 healthy subjects matched for age and sex were used as controls. QoL was assessed using Skindex-29, a validated instrument to measure the effects of skin disease on overall QoL (composite score) and three defined QoL aspects (emotions, symptoms, functioning). RESULTS: CU patients exhibited markedly reduced overall QoL compared with healthy control subjects. CU had distinct effects on the three QoL aspects assessed (functioning = emotions > symptoms). The age or sex of patients, the absence or presence of angio-oedemas, and the duration or cause of CU did not significantly influence QoL impairment. Interestingly, psychiatric comorbidity (depression, anxiety, somatoform disorders) was associated with a more pronounced reduction of QoL compared with CU patients without a psychiatric diagnosis and the severity of psychiatric disease was found to correlate with QoL impairment. CONCLUSIONS: Our data confirm that overall QoL is markedly reduced in CU patients. Social functioning and emotions were found to be the areas of QoL most affected in CU patients. Psychiatric comorbidity significantly increased QoL impairment, whereas QoL in CU patients was not significantly affected by age or sex, the absence or presence of angio-oedema, or the course or cause of CU.

[Neurological and somatoform vertigo syndromes]. / Neurologische und somatoforme Schwindelsyndrome.

Vertigo is one of the most common cardinal symptoms encountered in the practice of general medicine and after headache the most frequent major complaint in neurology. The various vertigo syndromes should be differentiated according to organic and somatoform manifestations. Unfortunately, somatoform vertigo disorders are often not included in the differential diagnosis or be-latedly considered, which delays the diagnosis. This compounds the tendency of vertigo disorders to rapidly become chronic and frequently results in severe impairment of the patient's quality of life, even precipitating early retirement and incurring high costs for health care systems. Hence, in cases of complex vertigo disorders, early interdisciplinary cooperation is both helpful and essential during diagnostic work-up to include signs of somatic and psychosomatic origin.

Anxiety disorders and other psychiatric subgroups in patients complaining of dizziness.

Two hundred and two consecutive patients with dizziness were evaluated using blind neuro-otological testing and examination, blind psychiatric examination, including structured interviews (according to DSM-IV), the Symptom Check-List (SCL 90 R), and the State-Trait Anxiety Inventory (STAI). In 28% of the patients (N=50) dizziness was of organic origin (O group); in 55.3% (N=99) of psychogenic origin (P group) and in 16.8% comorbid psychiatric disorders were found (Mixed group). In 5.3% (N=10) neither organic nor psychiatric results could be found, which could explain the dizziness (Ideopathic group). Compared with the Organic group the patients with psychiatric disorders (P and Mixed group) had much more extensive workups for dizziness, intense emotional distress (anxiety, depression), greater handicaps, and high somatization scores. In the P and Mixed groups three main subgroups of psychiatric disorders could be found: anxiety (N=56), depressive (N=20), and somatoform disorders (N=53). Patients with anxiety and depressive disorders showed the greatest emotional distress and handicaps. The results indicate that psychiatric disorders, above all anxiety disorders, should be included in the differential diagnosis in patients with a long duration of dizziness and great handicaps. An interdisciplinary treatment (including psychiatric treatment) would be superior to an exclusive somatic one.

[Psychogenic vertigo incapacitates patients longer. What psychiatric illnesses might manifest as vertigo]. / Psychogener Schwindel legt Patienten länger lahm. Welche seelischen Erkrankungen hinter Schwindel stecken können.

Dizziness is a common symptom that, despite extensive medical evaluation, often remains unexplained. Psychiatric or psychosomatic disorders underlie the condition in 30-55% of the cases. The most common disturbances are phobic and anxiety disorders, followed by dissociative, depressive and somatoform disorders. The assessment of psychiatric and psychosomatic symptoms should always be included in the neuro-otological examination of dizziness. Early interdisciplinary treatment should be initiated with the aim of preventing chronification of psycho-genetic vertigo.

[Factitious disorders and Munchausens's syndrome. The state of research]. / Artifizielle Störungen und Münchhausen-Syndrom. Gegenwärtiger Stand der Forschung.

.5-2% of patients of general medicine suffer from factitious disorders. These disorders require utmost skill in recognition, diagnosis and treatment; inadequate treatment may result in severe complications. Literature has grown tremendously during recent years, but many physicians are still not adequately aware of the specific problems. The current state of research concerning phenomenology, pathogenesis, psychopathology, psychodynamics and therapy is presented and discussed.

["Phobic postural vertigo". A further differentiation of psychogenic vertigo conditions seems necessary]. / "Phobischer Schwankschwindel". Eine weitere Differenzierung psychogener Schwindelzustände erscheint erforderlich.

Due to the results of an interdisciplinary study on patients with vertigo as the chief symptom and on the background of psychodynamic theories concerning anxiety disorders the term of phobic postural vertigo (Brandt & Dieterich 1986) is discussed. It becomes obvious that phobic postural vertigo is a generalizing term which encompasses different forms of psychogenic vertigo. The authors plead for a more differentiated diagnosis and subgroup oriented classification of vertigo caused by psychiatric disorders.

[Illness-specific control issues in patients with vertigo as the main symptom]. / Krankheitsspezifische Kontrollüberzeugungen bei Patienten mit der Leitsymptomatik Schwindel.

The study explored the relationship between health locus of control and anxiety in 90 patients with the chief complaint of dizziness/vertigo. The patients were subjected to a neurological examination, including standardised history, physical examination, electronystagmography with caloric testing and posturography, auditory and visually brainstem-evoked responses, masseter reflex, vertebrobasiliar transcranial Doppler, optional: cranial imaging (CCT/MRI), cardial diagnostic, and a psychiatric-psychodynamic examination (including psychometric tests: STAI-G X2, KKG, SBA-S). The whole group of patients (psychogenic and organic dizziness) had a specific pattern of health locus of control: "double health external" (Type IV-Wallston and Wallston 1982). Patients with psychogenic dizziness showed a higher score of external locus of control (chance) compared with the patients with organic dizziness. High anxiety scores were accompanied by high scores of external locus of control (powerful others and chance) above all in the patients with psychogenic dizziness. Implications for therapy are discussed.