Two-year follow-up status of emergency department patients with chest pain: Was it panic disorder?

It was, in many cases.
 
CJEM. 2003 Jul;5(4):247-54. Related Articles
Two-year follow-up status of emergency department patients with chest pain: Was it panic disorder?

Fleet RP, Lavoie KL, Martel JP, Dupuis G, Marchand A, Beitman BD.

Research Center, Montreal Heart Institute, Montreal, Quebec, Canada.

OBJECTIVES: We previously reported that 25% (108/441) of consecutive patients presenting to the emergency department (ED) of the Montreal Heart Institute with a chief complaint of chest pain suffered from panic disorder (PD). The purpose of the present study was to re-examine these patients (with and without PD) 2 years after their initial ED visit to determine their psychiatric and psychosocial status. METHODS: An interviewer, who was kept blind to patients’ initial medical and psychiatric diagnoses, attempted to contact all patients who participated in the initial study by phone. Patients who completed the phone interview were sent a battery of psychological questionnaires by mail. RESULTS: A total of 301 (70%) patients completed the phone interview, and 228 (52%) patients completed the self-report questionnaires. Participants and non-participants did not differ with respect to age, gender, initial self-report scores, or initial cardiac or psychiatric diagnoses. At follow-up, significantly (p < 0.05) more PD+ than non-PD (PD-) patients reported: 1) chest pains in the last month (57% vs. 31%); 2) one or more ED consultations in the past year for chest pain (40% vs. 14%); 3) one or more hospitalizations in the past year (31% vs. 11%); and 4) perceiving their general health as “poor” (22% vs. 9%). PD+ patients displayed a significant (p < 0.05) worsening of their panic symptoms, agoraphobic avoidance, depression, and trait anxiety, and reported significantly (p < 0.05) greater suicidal ideation compared to PD- patients (32% vs. 9%). Of all PD+ patients, only 22% (18/82) reported receiving some form of mental health treatment for their symptoms. CONCLUSIONS: Unrecognized and untreated PD has a chronic and disabling course. Greater efforts should be made to screen for PD in patients complaining of chest pain in EDs.

PMID: 17472767 [PubMed – in process]

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Pain tolerance selectively increased by a sweet-smelling odor

Psychol Sci. 2007 Apr;18(4):308-11. Related Articles
Pain tolerance selectively increased by a sweet-smelling odor.

Prescott J, Wilkie J.

James Cook University, Cairns, Queensland, Australia.

The mechanism underlying reported analgesic effects of odors in humans is unclear, although odor hedonics has been implicated. We tested whether odors that are sweet smelling through prior association with tasted sweetness might influence pain by activating the same analgesic mechanisms as sweet tastes. Inhalation of a sweet-smelling odor during a cold-pressor test increased tolerance for pain compared with inhalation of pleasant and unpleasant low-sweetness odors and no odor. There were no significant differences in pain ratings among the odor conditions. These results suggest that smelled sweetness can produce a naturally occurring conditioned increase in pain tolerance.

PMID: 17470253 [PubMed – in process]

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Economic costs of full-blown and subthreshold panic disorder

J Affect Disord. 2007 Apr 25; [Epub ahead of print] Related Articles
Economic costs of full-blown and subthreshold panic disorder.

Batelaan N, Smit F, Graaf RD, Balkom AV, Vollebergh W, Beekman A.

Netherlands Institute of Mental Health and Addiction, Utrecht, The Netherlands; Department of Psychiatry and Institute for Research in Extramural Medicine, VU-University Medical Centre, Amsterdam, The Netherlands.

BACKGROUND: Data on the societal costs of mental disorders are necessary to inform health policies. METHODS: This study assessed the costs of panic disorder and subthreshold panic disorder, compared these with costs of other mental disorders, and assessed the effects of (psychiatric and somatic) comorbidity and agoraphobia on the costs of panic. Using a large, population-based study in The Netherlands (n=5504), both medical and production costs were estimated from a societal perspective within a one-year timeframe. RESULTS: Annual per capita costs of panic disorder were euro10,269, while subthreshold panic disorder generated euro6384. These costs were higher than those of the other mental disorders studied. About one quarter of the costs could be attributed to comorbidity. Agoraphobia was associated with higher costs. LIMITATIONS: Methodological choices influence cost estimates. In the present study most of these will result in conservative cost estimates. CONCLUSIONS: Panic thus causes substantial societal costs. Given the availability of effective treatment, treatment may not only benefit individual patients, but also have economic returns for society.

PMID: 17466380 [PubMed – as supplied by publisher]

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The revolution in psychiatric diagnosis: problems at the foundations

Perspect Biol Med. 2007 Spring;50(2):161-80. Related Articles
The revolution in psychiatric diagnosis: problems at the foundations.

Galatzer-Levy IR, Galatzer-Levy RM.

Department of Clinical Psychology, Teachers College, Columbia University, New York, USA. galatzerlevy@sbcglobal.net

The third edition of the American Psychiatric Association’s Diagnostic and Statistical Manual (DSM-III; 1974) not only revolutionized psychiatric diagnosis, it transformed and dominated American psychiatry. The nosology of psychiatry had been conceptually confusing, difficult to apply, and bound to widely questioned theories. Psychiatry and clinical psychology had been struggling with their scientific status. DSM attempted to solve psychiatry’s problems by making psychiatry more like its authors’ perception of general medicine. It tried to avoid theory, especially psychoanalytic theories, by discussing only observable manifestations of disorders. But DSM is actually highly theory-bound. It implicitly and powerfully includes an exclusively “medical” model of psychological disturbance, while excluding other psychiatric ideas. Its authors tried to meet what they saw as “scientific standards.” To a surprising extent, DSM reflects its creators’ personal distaste for psychoanalysis. The result is that DSM rests on a narrow philosophical perspective. The consequences of its adoption are widespread: it has profoundly affected drug development and other therapeutic studies, psychiatric education, attitudes toward patients, the public perception of psychiatry, and administrative and legal decisions. This article explores how DSM’s most problematic features arise from its history in psychiatric controversies of the 1960s and its underlying positivistic philosophy.

PMID: 17468537 [PubMed – in process]

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Morphine self-administration into the lateral septum depends on dopaminergic mechanisms: Evidence from pharmacology and Fos neuroimaging

Behav Brain Res. 2007 Mar 16; [Epub ahead of print] Related Articles
Morphine self-administration into the lateral septum depends on dopaminergic mechanisms: Evidence from pharmacology and Fos neuroimaging.

Le Merrer J, Gavello-Baudy S, Galey D, Cazala P.

Centre de Neurosciences Integratives et Cognitives, Universites Bordeaux 1 et 2, UMR CNRS 5228, Avenue des Facultes, 33405 Talence, France.

Mice self-administer morphine into the lateral septum (LS), but the neuronal connections underlying this behaviour remain unknown. The present study tested whether the acquisition of intra-LS morphine self-administration depends on dopaminergic mechanisms. Mice were allowed to self-inject morphine (5 or 20ng/50nl) or vehicle directly into the LS using a spatial discrimination Y-maze task. Fos imaging was used to evaluate neuronal activation in cerebral structures directly connected to the LS or belonging to the dopaminergic system. The involvement of dopaminergic and opioidergic mechanisms was assessed by pre-treating naive mice peripherally with the D1 antagonist SCH23390, the D2/D3 antagonist sulpiride or the opiate antagonist naloxone before daily self-administration sessions. Mice acquired self-administration behaviour for intra-LS morphine that was associated with increased Fos expression in the ventral tegmental area (VTA), dorsal and ventral striatum and prefrontal cortex. Pre-treating animals with naloxone, SCH23390 or sulpiride completely prevented them from acquiring intra-LS morphine self-administration. All three antagonists consistently blocked Fos expression in the prefrontal cortex, but not in the VTA and striatum. Taken together, our results show that morphine self-administration into the LS depends on dopaminergic (D1 and D2/D3) and opioidergic mechanisms. Furthermore, they suggest that opioid peptides released in the LS could participate in regulating the activity of mesotegmental dopaminergic neurons.

PMID: 17467070 [PubMed – as supplied by publisher]

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