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McMurray KMJ, Sah R. Neuroimmune mechanisms in fear and panic pathophysiology. Front Psychiatry 2022; 13:1015349. [PMID: 36523875 PMCID: PMC9745203 DOI: 10.3389/fpsyt.2022.1015349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 11/02/2022] [Indexed: 12/02/2022] Open
Abstract
Panic disorder (PD) is unique among anxiety disorders in that the emotional symptoms (e.g., fear and anxiety) associated with panic are strongly linked to body sensations indicative of threats to physiological homeostasis. For example, panic attacks often present with feelings of suffocation that evoke hyperventilation, breathlessness, or air hunger. Due to the somatic underpinnings of PD, a major focus has been placed on interoceptive signaling and it is recognized that dysfunctional body-to-brain communication pathways promote the initiation and maintenance of PD symptomatology. While body-to-brain signaling can occur via several pathways, immune and humoral pathways play an important role in communicating bodily physiological state to the brain. Accumulating evidence suggests that neuroimmune mediators play a role in fear and panic-associated disorders, although this has not been systematically investigated. Currently, our understanding of the role of immune mechanisms in the etiology and maintenance of PD remains limited. In the current review, we attempt to summarize findings that support a role of immune dysregulation in PD symptomology. We compile evidence from human studies and panic-relevant rodent paradigms that indicate a role of systemic and brain immune signaling in the regulation of fear and panic-relevant behavior and physiology. Specifically, we discuss how immune signaling can contribute to maladaptive body-to-brain communication and conditioned fear that are relevant to spontaneous and conditioned symptoms of PD and identify putative avenues warranting future investigation.
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Affiliation(s)
- Katherine M. J. McMurray
- Department of Pharmacology and Systems Physiology, University of Cincinnati, Cincinnati, OH, United States
- Veterans Affairs Medical Center, Cincinnati, OH, United States
| | - Renu Sah
- Department of Pharmacology and Systems Physiology, University of Cincinnati, Cincinnati, OH, United States
- Veterans Affairs Medical Center, Cincinnati, OH, United States
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Layer P, Andresen V, Allescher H, Bischoff SC, Claßen M, Elsenbruch S, Freitag M, Frieling T, Gebhard M, Goebel-Stengel M, Häuser W, Holtmann G, Keller J, Kreis ME, Kruis W, Langhorst J, Jansen PL, Madisch A, Mönnikes H, Müller-Lissner S, Niesler B, Pehl C, Pohl D, Raithel M, Röhrig-Herzog G, Schemann M, Schmiedel S, Schwille-Kiuntke J, Storr M, Preiß JC, Andus T, Buderus S, Ehlert U, Engel M, Enninger A, Fischbach W, Gillessen A, Gschossmann J, Gundling F, Haag S, Helwig U, Hollerbach S, Karaus M, Katschinski M, Krammer H, Kuhlbusch-Zicklam R, Matthes H, Menge D, Miehlke S, Posovszky MC, Schaefert R, Schmidt-Choudhury A, Schwandner O, Schweinlin A, Seidl H, Stengel A, Tesarz J, van der Voort I, Voderholzer W, von Boyen G, von Schönfeld J, Wedel T. Update S3-Leitlinie Reizdarmsyndrom: Definition, Pathophysiologie, Diagnostik und Therapie. Gemeinsame Leitlinie der Deutschen Gesellschaft für Gastroenterologie, Verdauungs- und Stoffwechselkrankheiten (DGVS) und der Deutschen Gesellschaft für Neurogastroenterologie und Motilität (DGNM) – Juni 2021 – AWMF-Registriernummer: 021/016. ZEITSCHRIFT FUR GASTROENTEROLOGIE 2021; 59:1323-1415. [PMID: 34891206 DOI: 10.1055/a-1591-4794] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- P Layer
- Medizinische Klinik, Israelitisches Krankenhaus, Hamburg, Deutschland
| | - V Andresen
- Medizinische Klinik, Israelitisches Krankenhaus, Hamburg, Deutschland
| | - H Allescher
- Zentrum für Innere Medizin, Gastroent., Hepatologie u. Stoffwechsel, Klinikum Garmisch-Partenkirchen, Garmisch-Partenkirchen, Deutschland
| | - S C Bischoff
- Institut für Ernährungsmedizin, Universität Hohenheim, Stuttgart, Deutschland
| | - M Claßen
- Klinik für Kinder- und Jugendmedizin, Klinikum Links der Weser, Bremen, Deutschland
| | - S Elsenbruch
- Klinik für Neurologie, Translational Pain Research Unit, Universitätsklinikum Essen, Essen, Deutschland.,Abteilung für Medizinische Psychologie und Medizinische Soziologie, Ruhr-Universität Bochum, Bochum, Deutschland
| | - M Freitag
- Abteilung Allgemeinmedizin Department für Versorgungsforschung, Universität Oldenburg, Oldenburg, Deutschland
| | - T Frieling
- Medizinische Klinik II, Helios Klinikum Krefeld, Krefeld, Deutschland
| | - M Gebhard
- Gemeinschaftspraxis Pathologie-Hamburg, Hamburg, Deutschland
| | - M Goebel-Stengel
- Innere Medizin II, Helios Klinik Rottweil, Rottweil, und Innere Medizin VI, Psychosomat. Medizin u. Psychotherapie, Universitätsklinikum Tübingen, Tübingen, Deutschland
| | - W Häuser
- Innere Medizin I mit Schwerpunkt Gastroenterologie, Klinikum Saarbrücken, Saarbrücken, Deutschland
| | - G Holtmann
- Faculty of Medicine & Faculty of Health & Behavioural Sciences, Princess Alexandra Hospital, Brisbane, Australien
| | - J Keller
- Medizinische Klinik, Israelitisches Krankenhaus, Hamburg, Deutschland
| | - M E Kreis
- Klinik für Allgemein-, Viszeral- und Gefäßchirurgie, Charité - Universitätsmedizin Berlin, Campus Benjamin Franklin, Berlin, Deutschland
| | | | - J Langhorst
- Klinik für Integrative Medizin und Naturheilkunde, Sozialstiftung Bamberg, Klinikum am Bruderwald, Bamberg, Deutschland
| | - P Lynen Jansen
- Deutsche Gesellschaft für Gastroenterologie, Verdauungs- und Stoffwechselkrankheiten, Berlin, Deutschland
| | - A Madisch
- Klinik für Gastroenterologie, interventionelle Endoskopie und Diabetologie, Klinikum Siloah, Klinikum Region Hannover, Hannover, Deutschland
| | - H Mönnikes
- Klinik für Innere Medizin, Martin-Luther-Krankenhaus, Berlin, Deutschland
| | | | - B Niesler
- Abteilung Molekulare Humangenetik Institut für Humangenetik, Universitätsklinikum Heidelberg, Heidelberg, Deutschland
| | - C Pehl
- Medizinische Klinik, Krankenhaus Vilsbiburg, Vilsbiburg, Deutschland
| | - D Pohl
- Klinik für Gastroenterologie und Hepatologie, Universitätsspital Zürich, Zürich, Schweiz
| | - M Raithel
- Medizinische Klinik II m.S. Gastroenterologie und Onkologie, Waldkrankenhaus St. Marien, Erlangen, Deutschland
| | | | - M Schemann
- Lehrstuhl für Humanbiologie, TU München, Deutschland
| | - S Schmiedel
- I. Medizinische Klinik und Poliklinik Gastroenterologie, Universitätsklinikum Hamburg-Eppendorf, Deutschland
| | - J Schwille-Kiuntke
- Abteilung für Psychosomatische Medizin und Psychotherapie, Medizinische Universitätsklinik Tübingen, Tübingen, Deutschland.,Institut für Arbeitsmedizin, Sozialmedizin und Versorgungsforschung, Universitätsklinikum Tübingen, Tübingen, Deutschland
| | - M Storr
- Zentrum für Endoskopie, Gesundheitszentrum Starnberger See, Starnberg, Deutschland
| | - J C Preiß
- Klinik für Innere Medizin - Gastroenterologie, Diabetologie und Hepatologie, Vivantes Klinikum Neukölln, Berlin, Deutschland
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Rastogi V, Singh D, Mazza JJ, Parajuli D, Yale SH. Flushing Disorders Associated with Gastrointestinal Symptoms: Part 2, Systemic Miscellaneous Conditions. Clin Med Res 2018; 16:29-36. [PMID: 29650526 PMCID: PMC6108508 DOI: 10.3121/cmr.2017.1379b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 11/30/2017] [Accepted: 12/21/2017] [Indexed: 12/12/2022]
Abstract
Flushing disorders with involvement of the gastrointestinal tract represent a heterogeneous group of conditions. In part 1 of this review series, neuroendocrine tumors (NET), mast cell activation disorders (MCAD), and hyperbasophilia were discussed. In this section we discuss the remaining flushing disorders which primarily or secondarily involve the gastrointestinal tract. This includes dumping syndrome, mesenteric traction syndrome, rosacea, hyperthyroidism and thyroid storm, anaphylaxis, panic disorders, paroxysmal extreme pain disorder, and food, alcohol and medications. With the exception of paroxysmal pain disorders, panic disorders and some medications, these disorders presents with dry flushing. A detailed and comprehensive family, social, medical and surgical history, as well as recognizing the presence of other systemic symptoms are important in distinguishing the different disease that cause flushing with gastrointestinal symptoms.
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Affiliation(s)
- Vaibhav Rastogi
- University of Central Florida College of Medicine/HCA, Consortium Graduate Medical Education, North Florida, Regional Medical Center, 6500 W Newberry Rd, Gainesville, FL 32605
- University of Central Florida College of Medicine, 6850, Lake Nona Blvd, Orlando, FL 32827
| | - Devina Singh
- Feinstein Institute for Medical Research, 350 Community, Dr. Manhasset, NY 11030
| | - Joseph J Mazza
- Marshfield Clinic Research Institute, 1000 North Oak, Avenue, Marshfield, WI 54449
| | - Dipendra Parajuli
- University of Louisville, Department of Medicine, Gastroenterology, Hepatology and Nutrition. Director, Fellowship Training Program, Director, Medical Procedure Unit Louisville VAMC 401 East Chestnut Street, Louisville, KY 40202
| | - Steven H Yale
- University of Central Florida College of Medicine/HCA, Consortium Graduate Medical Education, North Florida, Regional Medical Center, 6500 W Newberry Rd, Gainesville, FL 32605.
- University of Central Florida College of Medicine, 6850, Lake Nona Blvd, Orlando, FL 32827
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Hausteiner-Wiehle C, Henningsen P. Irritable bowel syndrome: Relations with functional, mental, and somatoform disorders. World J Gastroenterol 2014; 20:6024-6030. [PMID: 24876725 PMCID: PMC4033442 DOI: 10.3748/wjg.v20.i20.6024] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2013] [Accepted: 03/19/2014] [Indexed: 02/06/2023] Open
Abstract
This review describes the conceptual and clinical relations between irritable bowel syndrome (IBS), other functional, somatoform, and mental disorders, and points to appropriate future conceptualizations. IBS is considered to be a functional somatic syndrome (FSS) with a considerable symptom overlap with other FSSs like chronic fatigue syndrome or fibromyalgia syndrome. IBS patients show an increased prevalence of psychiatric symptoms and disorders, especially depression and anxiety. IBS is largely congruent with the concepts of somatoform and somatic symptom disorders. Roughly 50% of IBS patients complain of gastrointestinal symptoms only and have no psychiatric comorbidity. IBS concepts, treatment approaches, as well as health care structures should acknowledge its variability and multidimensionality by: (1) awareness of additional extraintestinal and psychobehavioral symptoms in patients with IBS; (2) general and collaborative care rather than specialist and separated care; and (3) implementation of “interface disorders” to abandon the dualistic classification of purely organic or purely mental disorders.
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Sugaya N, Yoshida E, Yasuda S, Tochigi M, Takei K, Ohtani T, Otowa T, Minato T, Umekage T, Sakano Y, Chen J, Shimada H, Nomura S, Okazaki Y, Kaiya H, Tanii H, Sasaki T. Irritable bowel syndrome, its cognition, anxiety sensitivity, and anticipatory anxiety in panic disorder patients. Psychiatry Clin Neurosci 2013; 67:397-404. [PMID: 23890055 DOI: 10.1111/pcn.12069] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2011] [Revised: 05/26/2013] [Accepted: 05/29/2013] [Indexed: 11/27/2022]
Abstract
AIM The present study examined the effect of irritable bowel syndrome (IBS), cognitive appraisal of IBS, and anxiety sensitivity on anticipatory anxiety (AA) and agoraphobia (AG) in patients with panic disorder (PD). METHODS We examined 244 PD patients who completed a set of questionnaires that included the Rome II Modular Questionnaire to assess the presence of IBS, the Anxiety Sensitivity Index (ASI), the Cognitive Appraisal Rating Scale (CARS; assessing the cognitive appraisal of abdominal symptoms in four dimensions: commitment, appraisal of effect, appraisal of threat, and controllability), and items about the severity of AA and AG. The Mini International Neuropsychiatric Interview was used to diagnose AG and PD. RESULTS After excluding individuals with possible organic gastrointestinal diseases by using 'red flag items,' valid data were obtained from 174 participants, including 110 PD patients without IBS (PD/IBS[-]) and 64 with IBS (PD/IBS[+]). The PD/IBS[+] group had higher AA and higher comorbidity with AG than the PD/IBS[-] group. In the PD/IBS[+] group, the controllability score of CARS was significantly correlated with AA and ASI. Multiple regression analysis showed a significant effect of ASI but not of controllability on AA in PD/IBS[+] subjects. CONCLUSION This study suggested that the presence of IBS may be related to agoraphobia and anticipatory anxiety in PD patients. Cognitive appraisal could be partly related to anticipatory anxiety in PD patients with IBS with anxiety sensitivity mediating this correlation.
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Affiliation(s)
- Nagisa Sugaya
- Addictive Substance Project, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan.
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Chen YH, Lin HC. Patterns of psychiatric and physical comorbidities associated with panic disorder in a nationwide population-based study in Taiwan. Acta Psychiatr Scand 2011; 123:55-61. [PMID: 20156213 DOI: 10.1111/j.1600-0447.2010.01541.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVE This study aims to document a range of risk of psychiatric and physical comorbidities among PD patients using a nationwide population-based dataset in Taiwan. METHOD A total of 3672 patients with at least three consensus diagnoses with PD were included, together with 18 360 matched controls without PD. Logistic regression analyses were performed after adjusting for sociodemographic characteristics. RESULTS After adjusting for the patients' sex, age and geographic region, patients with PD were more likely to have major depressive disorder (OR = 23.45), bipolar disorder (OR = 15.54), cardiac dysrhythmia (OR = 15.12), coronary heart disease (OR = 7.69), myocardial infarction (OR = 6.55), irritable bowel syndrome (OR = 4.82), peptic ulcers (OR = 4.30), cerebrovascular disease (OR = 3.61), hypertension (OR = 3.31), epilepsy (OR = 3.07), hepatitis (OR = 2.70), hyperlipidemia (OR = 2.20), asthma (OR = 2.17), schizophrenia (OR = 2.14), neoplasms (OR = 2.02), renal disease (OR = 1.89) and diabetes (OR = 1.26), compared to patients in the comparison cohort. CONCLUSION We conclude that PD is associated with an array of psychiatric and physical illnesses.
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Affiliation(s)
- Y-H Chen
- Taipei Medical University, Taiwan
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Lambert RA, Lorgelly P, Harvey I, Poland F. Cost-effectiveness analysis of an occupational therapy-led lifestyle approach and routine general practitioner's care for panic disorder. Soc Psychiatry Psychiatr Epidemiol 2010; 45:741-50. [PMID: 19688282 DOI: 10.1007/s00127-009-0114-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2008] [Accepted: 07/31/2009] [Indexed: 10/20/2022]
Abstract
OBJECTIVE To assess the cost-effectiveness of an occupational therapy-led lifestyle approach to treating panic disorder in primary care compared with routine general practitioner's (GP) care. The burden of mental health disorders is considerable. Cost-effective interventions are necessary to alleviate some of these burdens. Habitual lifestyle behaviours influence mood, although to date mainly single lifestyle factor trials have been conducted to examine the effects on anxiety. METHODS An economic evaluation was conducted alongside an unblinded pragmatic randomised controlled trial with assessment at 5 and 10 months. Costs and consequences, as measured by the Beck anxiety inventory (BAI) and quality adjusted life years (QALYs), were compared using incremental cost-effectiveness ratios (ICERs). RESULTS The occupational therapy-led lifestyle intervention was more costly than routine GP care at both 5 and 10 months. Significant outcome improvements were evident at 5 months when using the BAI, although these were not maintained at 10 months. Small differences in mean QALYs were found. The estimated ICER was 36 pounds per BAI improvement for 5 months and 39 pounds for 10 months, and 18,905 pounds per QALY gained for 5 months and 8,283 pounds for 10 months. CONCLUSIONS If the maximum willingness to pay per additional QALY is 30,000 pounds, then there is an 86% chance that a lifestyle intervention may be considered to be value-for-money over 10 months.
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Affiliation(s)
- Rodney A Lambert
- School of Allied Health Professions, University of East Anglia, Norwich, UK.
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Vianna EPM, Weinstock J, Elliott D, Summers R, Tranel D. Increased feelings with increased body signals. Soc Cogn Affect Neurosci 2010; 1:37-48. [PMID: 18985099 DOI: 10.1093/scan/nsl005] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Since the beginning of psychology as a scientific endeavour, the question of whether the body plays a role in how a person experiences emotion has been the centre of emotion research. Patients with structural gastrointestinal disorders, such as Crohn's disease, provide an intriguing opportunity to study the influence of body signals on emotions and feelings. In the present study, emotionally salient films were presented to participants with Crohn's disease in either the active state (Crohn's-active, CA) or silent state (Crohn's-silent, CS), and to normal comparison (NC) participants. We hypothesized that CA participants would have increased feelings, compared with CS and NC participants, when viewing emotional films designed to elicit happiness, disgust, sadness and fear. Gastric myoelectrical activity (electrogastrogram, or EGG) was measured during the films, and after each film was presented, participants rated emotion intensity (arousal) and pleasantness (valence). All groups labelled the emotions similarly. In support of the hypothesis, CA participants showed an increase in subjective arousal for negative emotions compared with CS and NC participants. The CA participants also showed increased EGG during emotional film viewing, as well as a strong positive correlation of EGG with arousal ratings. Together, these findings can be taken as evidence that aberrant feedback from the gastrointestinal system up-regulates the intensity of feelings of negative emotions.
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Graff LA, Walker JR, Bernstein CN. Depression and anxiety in inflammatory bowel disease: a review of comorbidity and management. Inflamm Bowel Dis 2009; 15:1105-18. [PMID: 19161177 DOI: 10.1002/ibd.20873] [Citation(s) in RCA: 385] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
While there has been a great deal of speculation over the years on the importance of emotional factors in inflammatory bowel disease (IBD), it is only in the last decade or so that studies with stronger designs have been available to clarify the nature of this relationship. This review considers recent evidence on the prevalence of anxiety and depressive disorders in IBD, the role of these disorders as a risk factor for IBD onset, the degree to which they affect the course of the IBD, and the contribution of corticosteroid treatment to psychiatric symptom onset. There is evidence that anxiety and depression are more common in patients with IBD and that the symptoms of these conditions are more severe during periods of active disease. The few studies that address the issue of anxiety and depression as risk factors for IBD do not yet provide enough information to support definite conclusions. There is evidence, however, that the course of the disease is worse in depressed patients. Treatment with corticosteroids can induce mood disorders or other psychiatric symptoms. The second part of the review focuses on patient management issues for those with comorbid anxiety or depression. Practical approaches to screening are discussed, and are recommended for routine use in the IBD clinic, especially during periods of active disease. We review evidence-based pharmacological and psychological treatments for anxiety and depression and discuss practical considerations in treating these conditions in the context of IBD to facilitate overall management of the IBD patient.
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Affiliation(s)
- Lesley A Graff
- Department of Clinical Health Psychology, University of Manitoba, Winnipeg, Manitoba, Canada.
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Ciovica R, Riedl O, Neumayer C, Lechner W, Schwab GP, Gadenstätter M. The use of medication after laparoscopic antireflux surgery. Surg Endosc 2009; 23:1938-46. [PMID: 19169748 DOI: 10.1007/s00464-008-0271-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2008] [Accepted: 11/05/2008] [Indexed: 12/20/2022]
Abstract
BACKGROUND Laparoscopic antireflux surgery (LARS) significantly improves symptoms of gastro-esophageal reflux disease (GERD) and quality of life. Nevertheless, 14-62% of patients report using antisecretory medication after surgery, although only a tiny percentage has proven recurrence of GERD. We sought to determine symptoms of GERD, quality of life, and use of medication before and after LARS, and to compare our findings with those from previous studies. METHODS Five hundred fifty-three patients with GERD who underwent LARS were evaluated before and at 1 year after surgery. After surgery, multidisciplinary follow-up care was provided for all patients by surgeons, psychologists, dieticians, and speech therapists. RESULTS Symptoms of GERD and quality of life improved significantly and only 4.2% of patients still required medication after surgery [proton pump inhibitors (PPI) (98.4 vs. 2.2%; p < 0.01), prokinetics (9.6 vs. 1.1%; p < 0.01), and psychiatric medication (8 vs. 1.6%; p < 0.01)]. CONCLUSION LARS significantly reduced medication use at 1-year follow-up. However, these effects might be attributed, in part, to the multidisciplinary follow-up care. Further studies are therefore required to investigate which patients may benefit from multidisciplinary follow-up care and whether its selective application may reduce the need for medication after LARS.
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Affiliation(s)
- Ruxandra Ciovica
- Department of Surgery, General Hospital of Krems, Mitterweg 10, 3500, Krems, Austria
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Sugaya N, Kaiya H, Kumano H, Nomura S. Relationship between subtypes of irritable bowel syndrome and severity of symptoms associated with panic disorder. Scand J Gastroenterol 2008; 43:675-81. [PMID: 18569984 DOI: 10.1080/00365520701883478] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVE To investigate the relationship between subtypes of irritable bowel syndrome (IBS) and severity of symptoms associated with panic disorder (PD). MATERIAL AND METHODS The study comprised 178 consecutive new PD outpatients. Sixty-four patients met the Rome-II criteria for IBS (IBS[+]; 29 diarrhea-predominant IBS (IBSD), 14 constipation-predominant IBS (IBSC), 21 other types of IBS). RESULTS IBSD patients with agoraphobia avoided a greater number of scenes owing to fear of panic attack than did PD patients without IBS (IBS[-]) and with agoraphobia. IBS[+] patients with avoidant behavior due to fear of IBS symptoms had significantly higher Beck Depression Inventory (BDI) scores and avoided a larger number of scenes owing to fear of panic attack than IBS[+] patients with agoraphobia and without avoidant behavior due to fear of IBS symptoms or IBS[-] patients with agoraphobia. CONCLUSIONS The results suggest that the presence of IBSD or avoidant behavior because of fear of IBS symptoms may be associated with a more severe form of agoraphobia, and the latter may also be associated with depression.
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Affiliation(s)
- Nagisa Sugaya
- Graduate School of Human Sciences, Waseda University, 2-579-15 Mikajima, Tokorozawa, JP-359-1192 Saitama, Japan.
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Mikocka-Walus AA, Turnbull DA, Moulding NT, Wilson IG, Holtmann GJ, Andrews JM. Does psychological status influence clinical outcomes in patients with inflammatory bowel disease (IBD) and other chronic gastroenterological diseases: an observational cohort prospective study. Biopsychosoc Med 2008; 2:11. [PMID: 18538012 PMCID: PMC2443162 DOI: 10.1186/1751-0759-2-11] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2008] [Accepted: 06/06/2008] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Whether there is a temporal relationship between psychological problems and clinical outcomes in patients with diseases of the digestive tract has not been widely researched. Thus, our aims were 1) To observe and compare prospectively clinical outcomes in relation to psychological co-morbidity in patients with inflammatory bowel disease (IBD), irritable bowel syndrome (IBS) and chronic hepatitis C (HCV) and, 2) To test the hypothesis that patients with psychological co-morbidities are less likely to have a satisfactory response to standard treatment at 12 months. METHODS Overall, 139 patients were enrolled in this observational cohort prospective study. Over the ensuing year, physical and psychological measures were made at baseline and after 12 months (HADS, SCL90, SF-12 and disease activity measures). A logistic regression was conducted to observe any relationship between baseline characteristics and patients' clinical outcomes after 12 months. RESULTS Overall, there was no relationship between psychological status and quality of life at baseline and relapse at 12 months (p > 0.05). However, patients with inactive disease at baseline were at lower risk of relapse after 12 months (OR = 0.046, CI: 0.012-0.178). No significant relationship was found between psychological problems such as depression/anxiety and a total number of relapses in the IBD group. However, interestingly, patients with an active disease at baseline tended to have a greater number of relapses (OR = 3.07, CI: 1.650-5.738) and CD participants were found at lower risk of relapse than UC participants (OR = 0.382, CI: 0.198-0.736). CONCLUSION In contrast to previous investigations, this study suggests that there is no temporal relationship between psychological problems at baseline and clinical outcomes over time. Longer and larger prospective studies are needed to better understand this result.
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Affiliation(s)
- Antonina A Mikocka-Walus
- Discipline of General Practice, University of Adelaide, Level 3, Eleanor Harrald Building, Adelaide 5005, SA, Australia
- Department of Epidemiology & Preventive Medicine, Monash University, The Alfred, Level 3, Burnet Tower, 89 Commercial Rd, Melbourne 3004, VIC, Australia
| | - Deborah A Turnbull
- School of Psychology, University of Adelaide, Level 4, Hughes Building, Adelaide 5005, SA, Australia
| | - Nicole T Moulding
- School of Social Work and Social Policy, University of South Australia, Magill Campus, H1-32, Magill 5068, SA, Australia
| | - Ian G Wilson
- School of Medicine, University of Western Sydney, Locked Bag 1797, Penrith South DC NSW 1797, Australia
| | - Gerald J Holtmann
- Department of Gastroenterology and Hepatology, Royal Adelaide Hospital, North Wing Q7, Adelaide 5005, SA, Australia
| | - Jane M Andrews
- Department of Gastroenterology and Hepatology, Royal Adelaide Hospital, North Wing Q7, Adelaide 5005, SA, Australia
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Katerndahl DA. Chest pain and its importance in patients with panic disorder: an updated literature review. PRIMARY CARE COMPANION TO THE JOURNAL OF CLINICAL PSYCHIATRY 2008; 10:376-83. [PMID: 19158976 PMCID: PMC2629063 DOI: 10.4088/pcc.v10n0505] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2007] [Accepted: 01/14/2008] [Indexed: 10/20/2022]
Abstract
CONTEXT Chest pain is a common symptom in primary care settings, associated with considerable morbidity and health care utilization. Failure to recognize panic disorder as the source of chest pain leads to increased health care costs and inappropriate management. OBJECTIVE To identify characteristics of the chest pain associated with the presence of panic disorder, review the consequences and possible mechanisms of chest pain in panic disorder, and discuss the recognition of panic disorder in patients presenting with chest pain. DATA SOURCES Potential studies were identified via a computerized search of MEDLINE and PsycINFO databases and review of bibliographies. MeSH headings used included panic disorder with chest pain, panic disorder with coronary disease or cardiovascular disorders or heart disorders, and panic disorder with cholesterol or essential hypertension or tobacco smoking. STUDY SELECTION The diagnosis of panic disorder in eligible studies was based on DSM criteria, and studies must have used objective criteria for coronary artery disease and risk factors. Only case control and cohort studies were included. DATA SYNTHESIS Although numerous chest pain characteristics (believed to be both associated and not associated with coronary artery disease) have been reportedly linked to panic disorder, only nonanginal chest pain is consistently associated with panic disorder (relative risk = 2.03, 95% CI = 1.41 to 2.92). CONCLUSION Chest pain during panic attacks is associated with increased health care utilization, poor quality of life, and phobic avoidance. Because the chest pain during panic attacks may be due to ischemia, the presence of panic attacks may go unrecognized. Ultimately, the diagnosis of panic disorder must be based on DSM criteria. However, once panic disorder is recognized, clinicians must remain open to the possibility of co-occurring coronary artery disease.
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Affiliation(s)
- David A Katerndahl
- Department of Family and Community Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA.
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Lambert RA, Harvey I, Poland F. A pragmatic, unblinded randomised controlled trial comparing an occupational therapy-led lifestyle approach and routine GP care for panic disorder treatment in primary care. J Affect Disord 2007; 99:63-71. [PMID: 17014912 DOI: 10.1016/j.jad.2006.08.026] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2006] [Revised: 08/08/2006] [Accepted: 08/11/2006] [Indexed: 11/18/2022]
Abstract
BACKGROUND Treated anxiety increased in the UK by over 30% since 1994. Medication and psychological treatment is most common, but outcomes are sometimes poor, with high relapse rates. Lifestyle has a potential role in treatment, but is not considered in clinical guidelines. Panic disorder is potentially influenced by lifestyle factors. METHODS 16 week unblinded pragmatic randomised controlled trial in 15 East of England primary care practices (2 Primary Care Trusts). Participants met DSM-IV criteria for panic disorder with/without agoraphobia. Follow-up at 20 weeks and 10 months. Control arm, unrestricted routine GP care. Trial Arm, Occupational therapy-led lifestyle treatment comprising: lifestyle review of fluid intake, diet pattern, exercise, caffeine, alcohol and nicotine; negotiation of positive lifestyle changes; monitoring and review of impact of changes. PRIMARY OUTCOME MEASURE Beck Anxiety Inventory. DATA ANALYSIS Intention-to-treat analysis provided between-group comparisons using analysis of co-variance. Bonferroni method to adjust p-values. RESULTS From 199 referrals, 36 GP care and 31 lifestyle arm patients completed to final follow-up. Significantly lower lifestyle arm BAI scores at 20 weeks (p<0.001), non-significant (p=0.167) at 10 months after Bonferroni correction. 63.6% lifestyle arm, and 40% GP arm patients (p=0.045) panic-free at 20 weeks; 67.7% and 48.5% (p=0.123) respectively at 10 months. LIMITATIONS Final study size/power calls for caution in interpreting findings. CONCLUSIONS A lifestyle approach may provide a clinically effective intervention at least as effective as routine GP care, with significant improvements in anxiety compared with routine GP care at the end of treatment. Further study is required before suggesting practice changes.
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Affiliation(s)
- Rodney A Lambert
- School of Allied Health Professions, University of East Anglia, Norwich, Norfolk, England, NR4 7TJ, UK.
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Abstract
Psychiatric comorbidity is not an uncommon phenomenon in patients with noncardiac chest pain (NCCP). Panic disorder seems to be the most important psychiatric comorbidity for a number of reasons. First, it is the most common psychiatric disorder associated with NCCP. Second, panic disorder is a highly treatable condition that can produce dramatic improvement of NCCP when treatment is appropriate. Finally, the treatment of psychiatric comorbidity, whether panic disorder or other psychiatric disorders, can pay significant dividends in terms of improving the patient's overall well-being and adaptation to illness, even if his/her chest pain symptoms are not alleviated. Adopting a biopsychosocial model to intervene on the stress of these patients' experience is a key concept that can make NCCP a much less formidable challenge for the gastroenterologist.
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Affiliation(s)
- Kevin W Olden
- Division of Gastroenterology, University of South Alabama, Knollwood Pavilion, 5600 Girby Road, Mobile, AL 36693, USA.
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Lydiard RB. Increased prevalence of functional gastrointestinal disorders in panic disorder: clinical and theoretical implications. CNS Spectr 2005; 10:899-908. [PMID: 16273019 DOI: 10.1017/s1092852900019878] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND Functional gastrointestinal disorders (FGID) are a group of disorders characterized by recurrent gastrointestinal distress for which no structural or biochemical cause can be discerned. Irritable bowel syndrome (IBS) is an FGID estimated to affect 10% to 25% of the United States population. IBS occurs in over 40% of individuals with panic disorder, and in patients with IBS, 25% to 30% have panic disorder, which has led to speculation about possible shared pathophysiology between the two. Less is known about the prevalence of other FGID in individuals with panic disorder. OBJECTIVE The purpose of this study was to examine the prevalence of IBS and all the other FGID in patients with current Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) panic disorder. INTRODUCTION We assessed FGIDs in 73 treatment-seeking DSM-IV panic disorder patients via the Diagnostic Interview Questions for Functional Gastrointestinal Disorders and made descriptive comparisons with a large convenience sample from an already-completed United States Household Survey (USHS), which employed the same diagnostic criteria. RESULTS The prevalence of IBS and other FGIDs in both men and women with panic disorder were substantially higher than in the USHS respondents. Women with panic disorder had significantly more functional chest pain than men, but there was no gender difference in IBS. With the exception of functional anorectal and biliary disorders, the FGID prevalences were comparatively higher in panic disorder versus the USHS respondents. DISCUSSION This survey supports earlier reports of a high prevalence of IBS in individuals with panic disorder and also suggests that the prevalence of several other FGIDs were comparatively high as well. Methodological limitations precluded direct statistical analysis. It may be that commonly overlapping psychiatric and often-painful FGIDs, and extra-intestinal disorders increase the risk for comorbidity in already-affected individuals via shared pathophysiology. One potential model for which there is some evidence for a role in stress, panic disorder, FGIDs and several extra-intestinal functional conditions is dysregulation of corticotropin-releasing factor function. CONCLUSION The prevalence of FGIDs in DSM-IV panic disorder was comparatively higher than in USHS respondent community sample, which used similar FGID diagnostic criteria. The cause for the apparent close association of panic disorder with FGID may represent shared pathophysiology. Increased understanding of the mechanism of the overlap may allow for improved treatment of the significant proportion of the population suffering from comorbid psychiatric and functional medical conditions.
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Affiliation(s)
- R Bruce Lydiard
- Department of Neuropsychiatry and Behavioral Science, University of South Carolina, Columbia, SC, USA.
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Ballas CA, Staab JP. Medically unexplained physical symptoms: toward an alternative paradigm for diagnosis and treatment. CNS Spectr 2003; 8:20-6. [PMID: 14978460 DOI: 10.1017/s1092852900008245] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The treatment of patients with unexplained medical symptoms is difficult because there is neither a clear etiology for the symptoms, nor a useful paradigm with which to understand and treat them. Patients with such symptoms are often referred to psychiatry with vague diagnoses of "somatization" or "hypochondriasis." Rather than considering somatoform diagnoses based on the number or diversity of physical symptoms, evolving research suggests an emphasis on the type of physical symptom as an indicator of Axis I pathology. This article links specific symptomatic complaints, such as chronic pain, chest pain, and dizziness, to the respective Axis I disorders associated with them, such as depression, panic disorder, and anxiety disorders.
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Affiliation(s)
- Christos A Ballas
- Department of Psychiatry, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
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Abstract
Irritable bowel syndrome is a biopsychosocial disorder characterized by dysregulation of intestinal motor, sensory, and central nervous system functions. It is associated with significant disability and health-care costs. The traditional diagnostic approach leads to excessive investigation for many patients. A reductionist approach of focusing on evaluation and treatment of a single mechanism is unlikely to prove effective. Identification of the characteristic symptom pattern is the key to cost-effective management. A strong patient-physician relationship is essential for a successful outcome. Optimal outcome is predicated on an individualized treatment plan that integrates pharmacologic and behavioral modalities.
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Affiliation(s)
- Richard B Birrer
- St. Joseph's Regional Medical Center Locust Valley, New York, USA
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Kamolz T, Bammer T, Granderath FA, Pointner R. Laparoscopic antireflux surgery in gastro-oesophageal reflux disease patients with concomitant anxiety disorders. Dig Liver Dis 2001; 33:659-64. [PMID: 11785710 DOI: 10.1016/s1590-8658(01)80041-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Several psychological factors are known to affect the subjective outcome, such as quality of life, after laparoscopic antireflux surgery. AIM To evaluate: a. outcome of laparoscopic antireflux surgery in gastro-oesophageal reflux disease patients with concomitant anxiety disorders, b. potential effects of laparoscopic antireflux surgery on psychiatric comorbidities. PATIENTS AND METHODS Out of more than 550 patients who underwent laparoscopic antireflux surgery, 21 suffered from additional anxiety disorders. Outcome assessments included traditional data, evaluation of symptoms and side-effects, and quality of life. These data were evaluated before laparoscopic antireflux surgery and 6 weeks, 3 months and 1 year after surgery, RESULTS Post-operative lower oesophageal sphincter pressure and DeMeester score were normal in all patients. Subjective severity of anxiety disorders remained unchanged in 13 patients 1 year after surgery. One patient suffered from severe dysphagia and required single dilatation. In this patient, severity and frequency of panic attacks increased for approximately 6 months after laparoscopic antireflux surgery. In 7 patients, total relief of panic symptoms was reported within 3 months post-operatively. Severity of most gastro-oesophageal reflux disease-related symptoms decreased significantly after laparoscopic antireflux surgery, but severity of some symptoms remained stable in patients with continuing anxiety disorders. In all patients, Gastrointestinal Quality of Life Index increased significantly. This improvement was less marked in patients with continuing anxiety disorders. Patients presenting total relief of panic symptoms showed an outcome comparable to normal data. CONCLUSIONS Data obtained suggest that patients with concomitant anxiety disorders should not generally be excluded from laparoscopic antireflux surgery but should be selected more carefully. In these patients, surgery significantly improves quality of life and eliminates gastro-oesophageal reflux disease-related symptoms. Some patients demonstrated less symptomatic relief. In contrast, laparoscopic antireflux surgery was able to eliminate panic disorders in one third of our patients.
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Affiliation(s)
- T Kamolz
- Department of General Surgery, Public Hospital of Zell am See, Austria.
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Abstract
Within the literature, it appears evident that neither a univariate etiologic model nor a single-agent treatment approach is sufficient to address the many diagnostic, assessment, and therapeutic challenges posed by irritable bowel syndrome (IBS). Various scientific advances have been made over the past 5 years, particularly in the areas of nonpharmacologic management of IBS. However, further collaboration between scientists and clinicians from multiple disciplines is strongly encouraged.
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Affiliation(s)
- S M Turner
- Department of Family Medicine, Oklahoma State University College of Osteopathic Medicine, 1111 W. 17th Street, Tulsa, OK 74107-1898, USA.
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Alpers DH. Is irritable bowel syndrome more than just a gastroenterologist's problem? Am J Gastroenterol 2001; 96:943-5. [PMID: 11316208 DOI: 10.1111/j.1572-0241.2001.03715.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Abstract
Approximately 30% of coronary angiograms performed in this country are negative for significant coronary artery disease. These patients are classified as having noncardiac or unexplained chest pain (UCP). Despite the good overall prognosis, this condition has significant morbidity and costs. The pathophysiology of this condition is likely caused by overlapping cardiac, esophageal, and psychiatric abnormalities with visceral hyperalgesia playing a central role. Gastroenterologists are often consulted in the evaluation of these patients because esophageal disorders are among the most common conditions associated with UCP. However, clinical symptoms are unreliable in differentiating between esophageal and cardiac causes of UCP. Gastroesophageal reflux disease, not esophageal motility disorders, is the most common esophageal disorder present in patients with UCP. The most useful diagnostic test in the evaluation of UCP is 24-h pH monitoring. An initial empiric trial of high-dose acid suppression is the most cost-effective intervention in the management of these patients. A clinical algorithm is suggested for the evaluation and treatment of UCP.
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Affiliation(s)
- J Fang
- Department of Gastroenterology and Hepatology, University of Utah Health Sciences Center, Salt Lake City 84105, USA
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Taylor GJ. Recent developments in alexithymia theory and research. CANADIAN JOURNAL OF PSYCHIATRY. REVUE CANADIENNE DE PSYCHIATRIE 2000; 45:134-42. [PMID: 10742872 DOI: 10.1177/070674370004500203] [Citation(s) in RCA: 401] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVE To review recent developments in alexithymia theory and research that are relevant to the field of psychosomatic medicine. METHOD Articles were selected from the alexithymia literature published over the past decade that describe advances in the theoretical understanding of alexithymia or report empirical investigations of the relationships of the construct with emotion regulation and with somatic illness and disease. Empirical investigations of the neural correlates of alexithymia were reviewed also, as were studies that explore therapeutic attempts to modify alexithymic characteristics. RESULTS The salient features of the alexithymia construct are now thought to reflect deficits in the cognitive processing and regulation of emotions. This is supported by studies showing that alexithymia is associated with maladaptive styles of emotion regulation, low emotional intelligence, a bidirectional interhemispheric transfer deficit, and reduced rapid eye movement (REM) density (number of eye movements divided by number of REM periods). Although empirical evidence demonstrates that alexithymia is associated with several somatic disorders, more prospective studies are required to establish the direction of causality. Preliminary data suggest that psychotherapies involving specific techniques to enhance emotional awareness and integrate symbolic and subsymbolic elements of emotion schemas may be effective in reducing alexithymic characteristics. CONCLUSION Alexithymia is proving to be a heuristically useful construct for exploring the role of personality and emotions in the pathogenesis of certain somatic illnesses and diseases.
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Trikas P, Vlachonikolis I, Fragkiadakis N, Vasilakis S, Manousos O, Paritsis N. Core mental state in irritable bowel syndrome. Psychosom Med 1999; 61:781-8. [PMID: 10593629 DOI: 10.1097/00006842-199911000-00010] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Psychiatric illness is higher among patients with irritable bowel syndrome (IBS) who seek medical care; however, a specific psychopathology that differentiates patients with IBS from patients with other organic gastrointestinal disorders has not been found. In the study described here, we investigated the predominant psychiatric symptoms in women with IBS. METHODS The criteria of Manning et al., as modified by Thompson et al., were used to make the diagnoses of IBS. Psychiatric assessment was performed by using a structured interview in 64 women, aged 20 to 70 years, 36 with IBS and 28 with chronic cholelithiasis. Diagnosis of chronic cholelithiasis was made by histopathological examination. The final diagnoses were confirmed by interview after 1 year. The diagnostic system based on the fourth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV) was used to make the current diagnoses. The Present State Examination (PSE)-Index of Definition (ID) computer program (CATEGO) was used to define total psychopathology (total PSE score), current clinical severity (ID), and clusters of psychiatric symptoms. RESULTS No difference in the specific DSM-IV diagnostic categories was found, but there were more total depressive disorders in the IBS group. The ID and total PSE score were high among patients with IBS. Multiple logistic regression analysis showed that duration of gastrointestinal pain, and the symptoms of general anxiety, and hypochondriasis significantly predicted a diagnosis of IBS. CONCLUSIONS Female patients with IBS are categorized into the general DSM-IV category of depressive disorder, their current psychiatric severity is high compared with that of women with chronic cholelithiasis, and patients with IBS are characterized by the psychiatric syndromes of general anxiety and hypochondriasis. The implications of these findings and areas for future research are discussed.
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Affiliation(s)
- P Trikas
- Department of Psychiatry and Behavioral Sciences, Faculty of Medicine, University of Crete, Heraklion, Greece
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Burke P, Elliott M, Fleissner R. Irritable bowel syndrome and recurrent abdominal pain. A comparative review. PSYCHOSOMATICS 1999; 40:277-85. [PMID: 10402871 DOI: 10.1016/s0033-3182(99)71219-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Clinical findings on irritable bowel syndrome in adults and recurrent abdominal pain in children are reviewed to determine if what is known about each disorder can illuminate our understanding of the other. The evidence reveals striking similarities between the disorders in prevalence, course, medical and psychiatric comorbidity, family medical and psychiatric history, and association with life events. Continuity between the two disorders is also suggested by the results of follow-up and follow-back studies. The review shows the importance of a developmental perspective for understanding functional bowel disorders in adults and points to areas where further research would be useful.
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Affiliation(s)
- P Burke
- University of Arizona Health Sciences Center, Department of Psychiatry, Tucson 85724-5002, USA.
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