Somatoform disorders in consultation-liaison psychiatry: a comparison with other mental disorders

Consultation-liaison (C-L) psychiatry has an important role in the management of somatoform disorders (SD). Characteristics of SD patients in C-L psychiatry are largely unknown and are presented in this paper. We analyzed 13,314 Dutch psychiatric consultations from 1984 to 1991 and compared patients diagnosed with SD to patients with other mental disorders and to those without a mental disorder. The comparison included socio-demographic variables, consult characteristics, medical history, current somatic morbidity, information about additional diagnostic tests, hospital admission time and aftercare management. Of the 544 SD patients 39.5% (n = 215) were diagnosed with a conversion disorder that illustrates the highly selected nature of SD patients in C-L psychiatry. Employment among SD patients decreased significantly from 58% in the group aged 20-29 years to 6% in the group aged 50-59 years. This decrease was significantly larger as compared to other mental disorders and no mental disorders and was virtually unaffected by correction for potential confounding by gender. Contrary to our expectation no difference between the three groups was observed in claims for disability benefits. Of the SD patients 74.5% were referred for aftercare management, significantly more than the other two groups which is considered a promising development in C-L psychiatry.     

Consultation-Liaison psychiatric service delivery: results from a European study.

The reported findings of the European Consultation-Liaison Workgroup (ECLW) Collaborative Study describe consultation-liaison service delivery by 56 services from 11 European countries aggregated on a C-L service level. During the period of 1 year (1991), the participants applied a standardized, reliability tested method of patient data collection, and data were collected describing pertinent characteristics of the hospital, the C-L service, and the participating consultants. The consultation rate of 1% (median; 1.4% mean) underscores the discrepancy between epidemiology and the services delivered. The core function of C-L services in general hospitals is a quick, comprehensive emergency psychiatric function. Reasons to see patients were the following. deliberate self-harm (17%), substance abuse (7.2%), current psychiatric symptoms (38.6%), and unexplained physical complaints (18.6%) (all means). A significant number of patients are old and seriously ill. Mood disorders and organic mental disorders are most predominant (17.7%). Somatoform and dissociative disorders together constitute 7.5%. C-L services in European countries are mainly emergency psychiatric services and perform an important bridge function between primary, general health, and mental health care.     

Referral pattern of neurological patients to psychiatric Consultation-Liaison Services in 33 European hospitals.

The referral pattern of neurological patients to 33 European psychiatric consultation-liaison (C-L) services in the general hospital was examined. Analyses were conducted on the ECLW CS data set, which consists of 14,717 psychiatric C-L referrals made in 56 European hospitals during 1991. Psychiatric referrals of patients admitted to neurological wards were compared to referrals from other wards. Information was obtained from 33 neurological wards, consisting of 34,506 neurological admissions. Of these admissions, 839 were referred to C-L psychiatry. The median consult rate among the hospitals was 1.8%. Compared to other hospital wards, patients referred from neurology were more frequently diagnosed as suffering from somatoform (P<.01) and dissociative disorders (P<.01), and less from substance abuse (P<.01) and delirium (P<.01). Referral to C-L psychiatry from neurological wards is characterized by an underestimation of psychiatric co-morbidity and a late detection, comparable to other medical specialties. An appeal is made for a standardized referral procedure including admission screening method, detecting patients at risk for nonstandard care during their hospital admission.     

A multicenter investigation of consultation-liaison psychiatry in Italy. Italian C-L Group.

In order to evaluate the extent and quality of consultation-liaison (C-L) activity in Italy, a multicenter investigation was conducted in 17 general hospitals. All of the hospitalized patients referred to C-L psychiatry during a 1-year period were assessed by means of a specific instrument (Patient Registration Form, PRF-SF). Of 518,212 patients, 4182 were referred to C-L services (referral rate = 0.72%). Typical consultations were for female patients (60.1%), admitted to medical wards (71.5%), aged 55-75 years. Most interventions were carried out within 2 days; a minority (22%) were urgent requests. Gastrointestinal and cardiovascular disorders, and unexplained medical symptoms were the most frequent ICD-9 somatic diagnoses at admission. One-third of the patients were not informed of having been referred to C-L and half of them had a lifetime history of psychiatric disturbances. Most frequent ICD-10 psychiatric diagnoses were neurotic, stress-related, and somatoform syndromes (33.1%), affective syndromes (19.4%), and organic mental syndromes (10.7%). Two-thirds of the patients were given only one consultation whereas the reminder received two to four follow-up visits. The rate of transfer to psychiatric wards was low (2.1%). Psychopharmacological treatment was suggested in 65% of cases, and 75.5% of the patients were referred to community psychiatric care at discharge. The implications of the findings are discussed.     

Mental disorders in general hospital patients

Two major epidemiological studies using standardized instruments for diagnosis have revealed that the prevalence of mental disorders in general hospital inpatients range from 41.3% to 46.5%. The most prevalent groups of psychiatric disorders among general hospital inpatients are organic mental illness, depressive disorders, and alcohol dependence or abuse. The prevalence rates of organic brain syndromes, adjustment disorders with depressed mood, and alcohol dependence in general hospital inpatients are above those of the general population. In nearly half of the studied general hospital inpatients receiving a psychiatric diagnosis Consultation-Liaison (C-L) psychiatry interventions were found to be necessary. However, psychiatric consultation rates found in most recently presented studies in Germany and Austria range from 2.66% to 3.30%, and remain low when compared to the reported prevalence figures of psychiatric disorders and the demonstrated necessity for specific therapeutic interventions among general hospital inpatients. There is also evidence stemming from newly presented C-L follow-up studies that the remarkable advances in intensive care treatment, organ transplantation medicine and cardiac surgery with cardiopulmonary bypass within the past decade have an important impact on the general hospital inpatients; psychosocial outcome. One follow-up study of long-term acute respiratory distress syndrome (ARDS) survivors using the Structural Clinical Interview for the DSM-IV (SCID) has shown that 43.5% of these patients met the criteria for a full posttraumatic stress disorder (PTSD), 8.9% of these patients for a subthreshold or partial PTSD (sub-PTSD) at hospital discharge, and 23.9% of them still suffered from full PTSD, 17.8% of them from sub-PTSD. ARDS-Patients with PTSD symptomatology exhibited major impairments in a variety of dimensions of health-related quality of life. Another outcome study examining concurrently psychiatric morbidity and quality of life in intermediate-term survivors of orthotopic liver transplantation (OLT) survivors has documented that 5.4% of these patients had a full PTSD, and 17.3% of them a sub-PTSD at 4 year-follow-up. OLT- related PTSD symptomatology was associated with maximal decrements in health-related quality of life. The duration of intensive care treatment, the number of medical complications, and the occurrence of acute rejection were positively correlated with the risk of PTSD symptoms subsequent to OLT. Finally, one prospective 1-year outcome study has focused on psychiatric morbidity including postoperative delirium in patients who had undergone cardiac surgery employing cardiopulmonary bypass. Postoperative delirium developed in 32.4% of these patients, however, only in 5.9% of them severe delirium was noted. Short-term consequences of cardiac surgery included adjustment disorders with depressed features (32.4%), acute full in-hospital PTSD (17.6%), and in-hospital major depression (17.6%). The diagnostic status of in-hospital PTSD was linked to postoperative delirium. At 12 months, the severity of depression and anxiety disorders including PTSD improved and returned to the preoperative level. However, patients who were found to have major depression or PTSD before discharge, C-L psychiatric consultations were conducted. In conclusion, PTSD symptoms following medical illness and treatment are not rare. If they are untreated, PTSD symptoms such as intrusive recollections, avoidance and hyper-arousal may impair the patients; quality of life more than the primary disease. This seems to be also true for a subthreshold PTSD. To adequately diagnose and treat patients at risk of developing PTSD, close collaboration between physicians of all subspecialties and C-L psychiatrists will be necessary.     

European guidelines for training in consultation-liaison psychiatry and psychosomatics: report of the EACLPP Workgroup on Training in Consultation-Liaison Psychiatry and Psychosomatics

Objective

The European Association of Consultation-Liaison Psychiatry and Psychosomatics (EACLPP) has organized a workgroup to establish consensus on the contents and organization of training in consultation-liaison (C-L) for psychiatric and psychosomatic residents.

Methods

Initially, a survey among experts has been conducted to assess the status quo of training in C-L in different European countries. In several consensus meetings, the workgroup discussed aims, core contents, and organizational issues of standards of training in C-L. Twenty C-L specialists in 14 European countries participated in a Delphi procedure answering a detailed consensus checklist, which included different topics under discussion.

Results

Consensus on the following issues has been obtained: (1) all residents in psychiatry or psychosomatics should be exposed to C-L work as part of their clinical experience; (2) a minimum of 6 months of full-time (or equivalent part-time) rotation to a C-L department should take place on the second part of residency; (3) advanced training should last for at least 12 months; (4) supervision of trainees should be clearly defined and organized; and (5) trainees should acquire knowledge and skills on the following: (a) assessment and management of psychiatric and psychosomatic disorders or situations (e.g., suicide/self-harm, somatization, chronic pain and psychiatric disorders, and abnormal illness behavior in somatically ill patients); (b) crisis intervention and psychotherapy methods appropriate for medically ill patients; (c) psychopharmacology in physically ill patients; (d) communication with severely ill patients and dying patients, as well as with medical staff; (e) promotion of coordination of care for complex patients across several disciplines; and (f) organization of C-L service in relation to general hospital and/or primary care.In addition, the workgroup elaborated recommendations on the form of training and on assessment of competency.

Conclusion

This document is a first step towards establishing recognized training in C-L psychiatry and psychosomatics across the European Union.     

Funding consultation-liaison psychiatry via Medicare screening.

Despite offering many benefits to patients, the hospital, and the hospital staff, an academic psychiatric consultation service is difficult to fund. By screening Medicare patients for psychiatric complications and comorbid conditions, the consultation-liaison (C-L) service can generate incremental revenue for the hospital by moving patients from lower-paying to higher-paying Diagnostic Related Groups (DRGs). The C-L service chief can negotiate with the hospital to obtain a portion of these incremental funds to support the C-L service. Concurrent psychiatric disorders that move patients to more complex DRGs include substance abuse, substance dependence, drug-induced delirium, drug-induced organic affective syndrome, and psychotic depression. This paper presents a method of calculating the incremental hospital revenue generated by such screening along with the results of applying the method to selected DRGs at a west coast teaching hospital. Implementing this program at that hospital in fiscal year 1989 would have resulted in screening 142 Medicare patients (2.2% of Medicare admissions), discovering an estimated 25 patients with comorbid psychiatric conditions, and generating $51,800 in incremental hospital revenue. In creating a screening program, a C-L service chief must be prepared to negotiate issues with the medical records department, referring physicians, and the hospital administration.     

Somatoform disorders: the role of consultation liaison psychiatry

The somatoform disorders are encountered commonly in both primary and secondary care. Despite their high incidence, few hospitals have teams with the expertise to manage this group of conditions. The lack of appropriate carers leads to inappropriate care, including increased numbers of admissions and investigations, to the detriment of the patients. The absence of appropriate care also increases the cost to the health services. Multidisciplinary Consultation Liaison (C-L) Psychiatry teams operate within non-psychiatric settings and are dedicated to the mental health care of patients presenting in these areas. Their unique skills and approaches offer support and education to these non-psychiatric teams and care to this group of patients. They are thus ideally placed to assess, diagnose and manage individuals presenting with somatoform disorders. Unfortunately, these teams are not widely available, largely because the current climate within psychiatry leads services to concentrate on what is defined as serious mental illness, a term usually used synonymously with psychotic disorders, despite the large number of people suffering from somatoform disorders and the cost of their care. The dislike that some colleagues have for this group of conditions may further hamper the creation of these services. In order to provide efficient assessment of and treatment for individuals with somatoform disorders, C-L Psychiatry teams must be created to lead clinical development, research and training in this discipline. These teams will also lead on the further research required.     

Depression in the medically ill: diagnosis and treatment considerations in C-L psychiatry settings

Depression in general hospital patients is one of the main psychiatric problems in the medically ill. It often complicates the treatment and prognosis of patients with active medical conditions. However, depression in the medically ill is frequently under-recognized and under-treated. This article reviews the historical concept of secondary depression, and gives an overview of medical conditions and medications associated with depression. Phenomenological issues in the diagnosis of depression in medically ill populations and treatment considerations in C-L psychiatry settings will be discussed. The authors have used the examples of Parkinson's disease and epilepsy commonly associated with depression to illustrate how these considerations affect the C-L psychiatrist's choice of an antidepressant in the medically ill.     

Somatoform disorders: The role of consultation liaison psychiatry

The somatoform disorders are encountered commonly in both primary and secondary care. Despite their high incidence, few hospitals have teams with the expertise to manage this group of conditions. The lack of appropriate carers leads to inappropriate care, including increased numbers of admissions and investigations, to the detriment of the patients. The absence of appropriate care also increases the cost to the health services. Multidisciplinary Consultation Liaison (C-L) Psychiatry teams operate within non-psychiatric settings and are dedicated to the mental health care of patients presenting in these areas. Their unique skills and approaches offer support and education to these non-psychiatric teams and care to this group of patients. They are thus ideally placed to assess, diagnose and manage individuals presenting with somatoform disorders. Unfortunately, these teams are not widely available, largely because the current climate within psychiatry leads services to concentrate on what is defined as serious mental illness, a term usually used synonymously with psychotic disorders, despite the large number of people suffering from somatoform disorders and the cost of their care. The dislike that some colleagues have for this group of conditions may further hamper the creation of these services. In order to provide efficient assessment of and treatment for individuals with somatoform disorders, C-L Psychiatry teams must be created to lead clinical development, research and training in this discipline. These teams will also lead on the further research required.     

Consultation-liaison psychiatry in western Europe. The European Consultation-Liaison Workgroup

Consultation-liaison psychiatry (C-L) services have developed throughout Europe, largely as a result of individual local initiative. Reviews by contributors from 14 countries reveal similarities in national approaches and in the problems caused by inadequate resources, lack of recognition from psychiatric colleagues, and difficulties in integrating C-L with comprehensive systems of psychiatric care, which are mainly oriented toward community care. National C-L organizations and a recently established European Workgroup have focused attention on the clinical importance of C-L and the need to define national and local policies for its clinical role, staffing, and other resources. There is considerable and increasing interest in European C-L research.     

Consultation-liaison psychiatry in Korea.

The Korean Psychosomatic Society, our national organization for consultation-liaison (C-L) psychiatry was formed within the Korean Neuropsychiatric Association (KNPA) in 1992. Since then, there has been increasing interest in C-L activities in general hospitals. All psychiatry departments in university teaching hospitals offer C-L experiences as part of the rotation for residents. Recently, there have been increasing research activities in C-L psychiatry. However, there are some current obstacles to further development of C-L psychiatry. No reimbursement for C-L activities is one of the most pressing problems facing C-L psychiatrists. Insufficient staffing at C-L services and stigmatization of mental illness are also problems to be dealt with. In order to resolve those issues, a more organized approach to demonstrate the usefulness of psychiatric C-L activities will be needed.     

Consultation-liaison psychiatry: an international perspective.

Consultation-liaison (C-L) psychiatry is the specialty of physical/psychiatric comorbidity and somatization. As such, it addresses the commonest forms of psychiatric presentation in the community; it is mainstream psychiatry. Its name reflects the fact that most of the patients seen by C-L psychiatrists have to be managed jointly with a non-psychiatrist doctor and other professionals. Because of this, the degree of development of the specialty and its mode of operation differ from country to country, depending on the organization of health services and the varying attitudes towards the disorders in which C-L psychiatry specializes. These differences permit a refreshing opportunity to re-examine the ways in which patients with physical/psychiatric comorbidity and somatization can be helped. The International Organization for Consultation-Liaison Psychiatry was formed to facilitate this process. It has identified challenges that are universal, and which if not met rapidly and efficiently will damage our ability to provide appropriate care for the patients whom we serve.     

Patterns of referral from consultation-liaison to social work services

Despite their importance, the nature and context of referral patterns among mental health disciplines in the general hospital has not been sufficiently explored. This study focuses on consultation-liaison (C-L) psychiatry patterns of referral to social work services (SWS). From a structured data base of 1170 consults, it was observed that C-L referred 24% of the cases seen by psychiatry. Psychiatry was more likely to refer those who are: female (p = less than 0.05), living with others (p = less than 0.05), described as less urgent (p = less than 0.05), diagnosed with personality disorders (p = less than 0.01), under greater psychosocial stress (Axis IV) (p = less than 0.001), and evaluated as having better functional status (Axis V) (p = less than 0.001). Regression analysis revealed that four variables had the greatest impact on differentiating those C-L referred to SWS from the "others": 1) constant observation recommended (log -586, p = 0.0001); 2) type of psychiatric management (log -573, p = 0.0001); 3) Medicaid insurance (log -564, p = 0.0001); and 4) original referral for the consultation was the refusal of tests or medical treatment (log -559, p = 0.002).     

Consultation-liaison psychiatry training and supervision results in fewer recommendations for constant observation

In this study, we tested two hypotheses. First, that consultation-liaison (C-L)-trained psychiatry residents would order constant observation (CO) less frequently than psychiatry residents untrained in C-L. Second, we predicted that CO would be ordered less frequently under circumstances when experienced C-L psychiatry attending and fellows would be available to supervise psychiatry residents training in C-L. We reviewed a total of 138 consultations during a 6-month period. Constant observation was recommended in 31 cases (22.5%). Consultations were done by residents who had received training in C-L psychiatry (n=34) and by residents who were not trained in C-L (n=34). Residents not trained in C-L had a significantly higher percentage of CO orders (44.1%) compared to those trained in C-L (15.4%) (chi(2)=12.1, df=1, P<0.001). Because C-L-trained residents provided regular-hour and after-hour consults while residents without C-L training provided only after-hour consults, we also separately analyzed data from the 102 after-hour cases. We again found that residents with C-L training had a significantly lower rate of ordering CO (22.1%) than those who had not yet received C-L psychiatry training (44.1%) (chi(2)=5.31, df=1, P<0.05). We also found that C-L-trained residents ordered CO less frequently during regular hour consults (2.8%) when experienced staff are available in supervision compared to after hours (22.1%) (chi(2)=6.72, df=1, P<0.01). Our findings suggest that training in C-L psychiatry has a significant impact on the use of constant observation for patients in the general hospital thereby reducing the cost of care.     

Psychotherapy in consultation-liaison psychiatry

Psychotherapy in the Consultation-Liaison (C-L) setting is shaped by the realities of the patient's situation, since all patients referred are dealing with physical illness. The patient's state of physical and mental health will determine both the type of therapeutic work possible and the focus of such work. Tailoring the therapeutic intervention to the patient's specific needs and flexibility in altering and adapting therapeutic strategies over time in line with the patient's changing needs are essential. Although periods of treatment may range from single session to long term, supportive, insight oriented, group, family, cognitive and behavioral techniques have all been used successfully in a C-L setting, with measurable impact on well-being. Psychotherapeutic work in C-L is unique in that the focus of the therapist extends beyond the patient and family to include all caregivers, including other health care professionals, in line with the biopsychosocial model.     

Psychosomatic clinic or pain clinic: Which is more viable?

Outpatient consultation-liaison (C-L) psychiatry has been beset with problems concerning funding and patient acceptance. Though the consultation, liaison, and referral clinic models for outpatient C-L psychiatry each offer advantages, they have not conquered these fundamental problems. This paper introduces the multidisciplinary pain clinic as an alternative means of addressing somatic symptoms and psychiatric disorders in an ambulatory medical population. The multidisciplinary pain clinic offers advantages in terms of reimbursement, patient acceptance, and opportunities for interdisciplinary research. The pain clinic model has disadvantages that include administration by departments other than psychiatry, traditional location in a tertiary care hospital, and limitations to who can be treated. However, it offers a place where both the physiological and psychological aspects of somatic symptoms may be addressed. The pain clinic nurtures the priorities and goals of primary care for a patient population whose complexities may outstrip the resources of a single primary care physician.     

Development of consultation-liaison psychiatry in The Netherlands. Its social psychiatric heritage

Dutch consultation-liaison psychiatry (C-L psychiatry) has followed a developmental line separate from the American system. First, C-L psychiatry in the Netherlands has been less influenced by psychosomatic medicine than by social psychiatry. Second, the presence of psychiatric units in general hospitals that appear to be correlated with the growth of C-L psychiatry in the United States occurred later in the Netherlands. Third, little government support for clinical care, research, and especially for training has been available to Dutch psychiatry. Consequently, there has been little recent financial pressure on C-L psychiatry from reduced government support, as occurred in the United States. Finally, the relationship between primary and secondary health care in the Netherlands allows C-L psychiatry to have a direct impact on several inpatient and ambulatory levels in the health care chain. A nationally accepted database form for the computerized registration of the Psychiatric Consultations at the eight university hospitals and ten other general hospitals is currently in use. To facilitate standardization and recording the psychiatric consultation process, the Netherlands Consortium for C-L psychiatry (NCCP) was formed.