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Schaible SF, Hamann C, Grunt S, Aregger FC, Deml MC. Case report: C1/2 rotational instability progressing to extreme subaxial hyperkyphosis in an adolescent with severe catatonia. Brain Spine 2024; 4:102747. [PMID: 38510616 PMCID: PMC10951775 DOI: 10.1016/j.bas.2024.102747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Accepted: 01/05/2024] [Indexed: 03/22/2024]
Abstract
Introduction Autism spectrum disorder (ASD) is characterized by deficits in social communication, repetitive behaviors, and can be accompanied by a spectrum of psychiatric symptoms, such as schizophrenia and catatonia. Rarely, these symptoms, if left untreated, can result in spinal deformities. Research question and case description This case report details the treatment of a 16-year-old male ASD patient with catatonic schizophrenia and mutism, presenting with neck pain, left-rotated torticollis, and fever. MRI revealed atlantoaxial rotational instability and spinal cord compression from a dislocated dens axis. After inconclusive biopsies, empirical antibiotics, hard collar and halo fixation treatment, persistent instability necessitated C1/2 fusion. The ongoing catatonia was addressed with electroconvulsive therapy. Concurrently, he developed severe subaxial hyperkyphosis. The report examines the decision-making between conservative and surgical management for an adolescent with significant psychiatric comorbidity and progressive spinal symptoms against a backdrop of uncertain etiology. Materials and methods A case report and review of the literature. Results Posterior C1-C7 stabilization was successfully executed, effectively restoring cervical sagittal alignment, which was maintained throughout a two-year follow-up. Concurrently, the catatonia resolved. Discussion and conclusion To our knowledge, this is the third reported case of severe cervical deformity associated with fixed posture in a psychiatric patient. This case report emphasizes the critical importance of multidisciplinary collaboration in managing the interplay between neuropsychiatric disorders and severe spinal deformities. It showcases the practicality and efficacy of surgical intervention for persistent cervical deformity in pediatric schizophrenia patients, highlighting the necessity for a comprehensive risk-benefit analysis.
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Affiliation(s)
- Samuel F Schaible
- Department of Orthopaedic Surgery and Traumatology, University Hospital Bern, Inselspital, University of Bern, CH-3010 Bern, Switzerland
| | - Christoph Hamann
- Division of Child and Adolescent Psychiatry and Psychosomatic Medicine, Department of Paediatrics, Inselspital, Bern University Hospital, University of Bern, CH-3010 Bern, Switzerland
| | - Sebastian Grunt
- Division of Neuropaediatrics, Development and Rehabilitation, Department of Paediatrics, Inselspital, Bern University Hospital, University of Bern, CH-3010 Bern, Switzerland
| | - Fabian C Aregger
- Department of Orthopaedic Surgery and Traumatology, University Hospital Bern, Inselspital, University of Bern, CH-3010 Bern, Switzerland
| | - Moritz C Deml
- Department of Orthopaedic Surgery and Traumatology, University Hospital Bern, Inselspital, University of Bern, CH-3010 Bern, Switzerland
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Liebrand M, Rebsamen M, Nakamura-Utsunomiya A, von den Driesch L, Köck P, Caccia J, Hamann C, Wiest R, Kaess M, Walther S, Tschumi S, Hiyama TY, Kindler J. Case report: Psychosis and catatonia in an adolescent patient with adipsic hypernatremia and autoantibodies against the subfornical organ. Front Psychiatry 2023; 14:1206226. [PMID: 37539324 PMCID: PMC10396436 DOI: 10.3389/fpsyt.2023.1206226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 07/03/2023] [Indexed: 08/05/2023] Open
Abstract
This is the first description of a patient in which adipsic hypernatremia, a rare autoimmune encephalitis, presented in combination with complex psychiatric symptomatology, including psychosis and catatonia. Adipsic hypernatremia is characterized by autoantibodies against the thirst center of the brain. These autoantibodies cause inflammation and apoptosis in key regions of water homeostasis, leading to lack of thirst and highly increased serum sodium. To date, the symptoms of weakness, fatigue and drowsiness have been associated with adipsic hypernatremia, but no psychiatric symptomatology. Here, we showcase the first description of an adolescent patient, in which severe and complex psychiatric symptoms presented along with adipsic hypernatremia. The patient experienced delusion, hallucinations, restlessness and pronounced depression. Further, he showed ritualized, aggressive, disinhibited and sexualized behavior, as well as self-harm and psychomotor symptoms. Due to his severe condition, he was hospitalized on the emergency unit of the child and adolescent psychiatry for 8 months. Key symptoms of the presented clinical picture are: childhood-onset complex and treatment-resistant psychosis/catatonia, pronounced behavioral problems, fatigue, absent thirst perception, hypernatremia and elevated prolactin levels. This case report renders first evidence speaking for a causal link between the autoimmune adipsic hypernatremia and the psychotic disorder. Moreover, it sheds light on a new form of autoimmune psychosis.
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Affiliation(s)
- Matthias Liebrand
- University Hospital of Child and Adolescent Psychiatry and Psychotherapy, University of Bern, Bern, Switzerland
| | - Michael Rebsamen
- Support Center for Advanced Neuroimaging (SCAN), University Institute of Diagnostic and Interventional Neuroradiology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Akari Nakamura-Utsunomiya
- Department of Medical Genetics and Pediatrics, Hiroshima University Graduate School of Biomedical and Health Sciences, Hiroshima, Japan
| | - Luisa von den Driesch
- University Hospital of Child and Adolescent Psychiatry and Psychotherapy, University of Bern, Bern, Switzerland
| | - Patrick Köck
- University Hospital of Child and Adolescent Psychiatry and Psychotherapy, University of Bern, Bern, Switzerland
| | - Julien Caccia
- Department of Pediatrics, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Christoph Hamann
- Department of Pediatrics, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Roland Wiest
- Support Center for Advanced Neuroimaging (SCAN), University Institute of Diagnostic and Interventional Neuroradiology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Michael Kaess
- University Hospital of Child and Adolescent Psychiatry and Psychotherapy, University of Bern, Bern, Switzerland
- Department of Child and Adolescent Psychiatry, Center for Psychosocial Medicine, University Hospital Heidelberg, Heidelberg, Germany
| | - Sebastian Walther
- Translational Research Center, University Hospital of Psychiatry and Psychotherapy, University of Bern, Bern, Switzerland
| | - Sibylle Tschumi
- Department of Pediatrics, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Takeshi Y. Hiyama
- Department of Integrative Physiology, Graduate School and Faculty of Medicine, Tottori University, Tottori, Japan
| | - Jochen Kindler
- University Hospital of Child and Adolescent Psychiatry and Psychotherapy, University of Bern, Bern, Switzerland
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Castiglione-Fontanellaz CEG, Schaufler S, Wild S, Hamann C, Kaess M, Tarokh L. Sleep regularity in healthy adolescents: Associations with sleep duration, sleep quality, and mental health. J Sleep Res 2023:e13865. [PMID: 36852716 DOI: 10.1111/jsr.13865] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 02/03/2023] [Accepted: 02/08/2023] [Indexed: 03/01/2023]
Abstract
Current evidence points to the importance of sleep for adolescent physical and mental health. To date, most studies have examined the association between sleep duration/quality and health in adolescence. An emerging line of research suggests that regularity in the timing of sleep may also play an important role in well-being. To address this aspect of sleep, the present study investigated daily variability of sleep, quantified using the sleep regularity index (SRI), in 46 adolescents (M = 12.78 ± 1.07 years) and its association with depressive symptoms/mental health. Sleep was measured during a 6 month period (M = 133.11 ± 36.42 nights) using actigraphs to quantify SRI values calculated for school days, weekends and holidays. Depressive symptoms and general psychopathology were assessed at the beginning (baseline) and end (follow-up) of the actigraphy measurements. Sleep was most regular during school days and associated with a longer total sleep time, shorter sleep onset latency, and higher sleep efficiency. Moreover, a higher SRI on school days was associated with fewer depressive symptoms at follow-up, whereas higher SRI on weekends was associated with less overall psychopathology at follow-up. Furthermore, the change in overall psychopathology, but not depressive symptoms across the two assessments was correlated with sleep regularity index. Our results suggest that regular timing of sleep is associated with sleep that is of longer duration and higher quality and may be protective of adolescent mental health. Therefore, adolescents should be encouraged not only to get enough sleep, but also to retain regular sleeping patterns to promote well-being and mental health.
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Affiliation(s)
- Chiara E G Castiglione-Fontanellaz
- University Hospital of Child and Adolescent Psychiatry and Psychotherapy, University of Bern, Bern, Switzerland.,Translational Research Center, University Hospital of Psychiatry and Psychotherapy, University of Bern, Bern, Switzerland
| | - Samira Schaufler
- University Hospital of Child and Adolescent Psychiatry and Psychotherapy, University of Bern, Bern, Switzerland
| | - Salome Wild
- University Hospital of Child and Adolescent Psychiatry and Psychotherapy, University of Bern, Bern, Switzerland.,Translational Research Center, University Hospital of Psychiatry and Psychotherapy, University of Bern, Bern, Switzerland.,Graduate School for Health Sciences, University of Bern, Bern, Switzerland
| | - Christoph Hamann
- Division of Child and Adolescent Psychiatry and Psychosomatic Medicine, Department of Pediatrics, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Michael Kaess
- University Hospital of Child and Adolescent Psychiatry and Psychotherapy, University of Bern, Bern, Switzerland.,Department of Child and Adolescent Psychiatry, Center for Psychosocial Medicine, University Hospital Heidelberg, Heidelberg, Germany
| | - Leila Tarokh
- University Hospital of Child and Adolescent Psychiatry and Psychotherapy, University of Bern, Bern, Switzerland.,Translational Research Center, University Hospital of Psychiatry and Psychotherapy, University of Bern, Bern, Switzerland
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Castiglione-Fontanellaz CEG, Timmers TT, Lerch S, Hamann C, Kaess M, Tarokh L. Sleep and physical activity: results from a long-term actigraphy study in adolescents. BMC Public Health 2022; 22:1328. [PMID: 35820897 PMCID: PMC9275054 DOI: 10.1186/s12889-022-13657-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 06/15/2022] [Indexed: 11/10/2022] Open
Abstract
PURPOSE Research to date suggests that physical activity is associated with improved sleep, but studies have predominantly relied on self-report measures and have not accounted for school day/free day variability. To address these gaps in the literature, the aim of the present study was to (a) quantify physical activity in adolescents using long-term daily actigraphy measurement and (b) to examine the association between actigraphically assessed steps and sleep behavior in a sample of healthy adolescents. To be able to capture intra- and inter-individual differences in the daily physical activity of adolescents, we examined within as well as between subjects effects and its association with sleep. METHODS Fifty adolescents between 10 and 14 years of age were included in the present study. In total 5989 days of actigraphy measurement (average of 119 ± 40 days per participant; range = 39-195 days) were analyzed. We use multilevel modeling to disentangle the within and between subject effects of physical activity on sleep. In this way, we examine within an individual, the association between steps during the day and subsequent sleep on a day-to-day basis. On the other hand, our between subjects' analysis allows us to ascertain whether individuals with more overall physical activity have better sleep. RESULTS Within a subject more steps on school and free days were associated with later bed times on school and free days as well as later rise times on school days only. On the other hand, comparing between subjects' effects, more steps were associated with lower sleep efficiency on free and school days. No other significant associations were found for the other sleep variables. CONCLUSION Our results obtained through objective and long-term measurement of both sleep and number of steps suggest weak or non-significant associations between these measures for most sleep variables. We emphasize the importance of the methodology and the separation of within subject from between subject features when examining the relationship between physical activity and sleep.
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Affiliation(s)
- Chiara E G Castiglione-Fontanellaz
- University Hospital of Child and Adolescent Psychiatry and Psychotherapy, University of Bern, Bolligenstrasse 111, Haus A, 3000, Bern, Switzerland.,Translational Research Center, University Hospital of Psychiatry and Psychotherapy, University of Bern, Bern, Switzerland
| | - Tammy T Timmers
- University Hospital of Child and Adolescent Psychiatry and Psychotherapy, University of Bern, Bolligenstrasse 111, Haus A, 3000, Bern, Switzerland
| | - Stefan Lerch
- University Hospital of Child and Adolescent Psychiatry and Psychotherapy, University of Bern, Bolligenstrasse 111, Haus A, 3000, Bern, Switzerland
| | - Christoph Hamann
- Department of Child and Adolescent Psychiatry and Psychosomatic Medicine, University Children's Hospital, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Michael Kaess
- University Hospital of Child and Adolescent Psychiatry and Psychotherapy, University of Bern, Bolligenstrasse 111, Haus A, 3000, Bern, Switzerland.,Department of Child and Adolescent Psychiatry, Center for Psychosocial Medicine, University Hospital Heidelberg, Heidelberg, Germany
| | - Leila Tarokh
- University Hospital of Child and Adolescent Psychiatry and Psychotherapy, University of Bern, Bolligenstrasse 111, Haus A, 3000, Bern, Switzerland. .,Translational Research Center, University Hospital of Psychiatry and Psychotherapy, University of Bern, Bern, Switzerland.
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Kollitsch L, Hamann C, Knüpfer S, Meyer D, Kneissl P, Jüttner E, Osmonov D. Erratum zu: Symptomatische Hodenmetastase eines azinären Adenokarzinoms der Prostata. Urologe A 2021:10.1007/s00120-021-01641-2. [PMID: 34554276 DOI: 10.1007/s00120-021-01641-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- L Kollitsch
- Klinik für Urologie und Kinderurologie, Universitätsklinikum Schleswig-Holstein-Campus Kiel, Kiel, Deutschland.
| | - C Hamann
- Klinik für Urologie und Kinderurologie, Universitätsklinikum Schleswig-Holstein-Campus Kiel, Kiel, Deutschland
| | - S Knüpfer
- Klinik für Urologie und Kinderurologie, Universitätsklinikum Schleswig-Holstein-Campus Kiel, Kiel, Deutschland
| | - D Meyer
- Klinik für Urologie und Kinderurologie, Universitätsklinikum Schleswig-Holstein-Campus Kiel, Kiel, Deutschland
| | - P Kneissl
- Klinik für Urologie und Kinderurologie, Universitätsklinikum Schleswig-Holstein-Campus Kiel, Kiel, Deutschland
| | - E Jüttner
- Institut für Pathologie, Universitätsklinikum Schleswig-Holstein-Campus Kiel, Kiel, Deutschland
| | - D Osmonov
- Klinik für Urologie und Kinderurologie, Universitätsklinikum Schleswig-Holstein-Campus Kiel, Kiel, Deutschland
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Kollitsch L, Hamann C, Knüpfer S, Meyer D, Kneissl P, Jüttner E, Osmonov D. [Symptomatic testicular metastasis of acinar adenocarcinoma of the prostate]. Urologe A 2020; 59:1092-1094. [PMID: 32248276 PMCID: PMC8460512 DOI: 10.1007/s00120-020-01194-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
We report about the rare occurrence of symptomatic testicular metastasis of an acinar adenocarcinoma of the prostate. Testicular metastases are usually incidentally detected in patients treated with bilateral orchiectomy or more often during autopsy. In the literature, there are only a few clinical cases describing symptomatic testicular metastases. However, the possibility of such metastases should be considered in patients diagnosed with advanced prostate cancer. Testicular examination should be performed regularly, even in patients with low prostate-specific antigen levels.
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Affiliation(s)
- L Kollitsch
- Klinik für Urologie und Kinderurologie, Universitätsklinikum Schleswig-Holstein-Campus Kiel, Kiel, Deutschland.
| | - C Hamann
- Klinik für Urologie und Kinderurologie, Universitätsklinikum Schleswig-Holstein-Campus Kiel, Kiel, Deutschland
| | - S Knüpfer
- Klinik für Urologie und Kinderurologie, Universitätsklinikum Schleswig-Holstein-Campus Kiel, Kiel, Deutschland
| | - D Meyer
- Klinik für Urologie und Kinderurologie, Universitätsklinikum Schleswig-Holstein-Campus Kiel, Kiel, Deutschland
| | - P Kneissl
- Klinik für Urologie und Kinderurologie, Universitätsklinikum Schleswig-Holstein-Campus Kiel, Kiel, Deutschland
| | - E Jüttner
- Institut für Pathologie, Universitätsklinikum Schleswig-Holstein-Campus Kiel, Kiel, Deutschland
| | - D Osmonov
- Klinik für Urologie und Kinderurologie, Universitätsklinikum Schleswig-Holstein-Campus Kiel, Kiel, Deutschland
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Hamann C, Naumann CM, Addali M, Witt JH, Kollitsch L, Wagner C, Hamann M, Jünemann KP, Osmonov D. [Multicenter comparison of complications after robot-assisted and open simple prostatectomy]. Urologe A 2020; 59:565-572. [PMID: 32103288 DOI: 10.1007/s00120-020-01141-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Robot-assisted simple prostatectomy (RASP) is a relatively new minimally invasive procedure for surgical treatment to manage symptomatic, therapy-refractory benign prostate hyperplasia (BPH) in prostate volumes >80 cm3. Thus, postoperative morbidity based on Clavien-Dindo and hematological parameters in RASP and open simple prostatectomy (OSP) procedures are examined. PATIENTS AND METHODS We retrospectively reviewed a total of 78 patients: 39 patients underwent RAPS and 39 OSP. The following parameters were statistically evaluated and compared: age, PSA value, prostate volume, ASA score, duration of hospital stay, operative time, Hb decrease on postoperative (po) day 1 and in the 5 five po days, CRP peak in the first 5 po days and transfusion rate. RESULTS The comparison between RASP and standard OSP showed no significant differences regarding the mean patient age (73 vs. 74 years; p =0.54), PSA values (7.7 vs. 10.7 ng/ml; p =0.17), ASA score (2.2 vs. 2.3; p =0.26) and prostate volume (130 vs. 113 cm3; p =0.07). Patients in the RAPAE group had statistically significant longer surgery (178 vs. 110 min; p =<0.01) with a significantly smaller decrease in Hb on po day 1 (1.9 vs. 3.3 g/dl; p ≤0.01) and in the first 5 po days (2.4 vs. 4.2 g/dl; p ≤0.01), lower need for preserved blood (3% vs. 26%; p =0.01) and number of blood bags (0.1 vs. 1.3; p =0.01), a lower po Clavien-Dindo score (0.44 vs. 1.23; p =0.003) and lower CRP values (52 vs. 104 mg/l; p ≤0.01) in the first 5 po days. CONCLUSION RASP is a safe procedure that offers the advantage of reduced blood loss and blood bag consumption and rare complications due to the minimally invasive surgical method. The OSP group showed an increased occurrence of complications due to bleeding, leading to prolonged hospitalization and significantly increased need for blood transfusion. The lesser increase of CRP in RASP group is a result of the lower invasiveness of the robot-assisted procedure.
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Affiliation(s)
- C Hamann
- Klinik für Urologie und Kinderurologie, Universitätsklinikum Schleswig-Holstein - Campus Kiel, Arnold-Heller-Straße 3, 24105, Kiel, Deutschland.
| | - C-M Naumann
- Klinik für Urologie und Kinderurologie, Universitätsklinikum Schleswig-Holstein - Campus Kiel, Arnold-Heller-Straße 3, 24105, Kiel, Deutschland
| | - M Addali
- Klinik für Urologie, Kinderurologie und urologische Onkologie, Prostatazentrum Nordwest, St. Antonius Hospital Gronau GmbH, Gronau, Deutschland
| | - J H Witt
- Klinik für Urologie, Kinderurologie und urologische Onkologie, Prostatazentrum Nordwest, St. Antonius Hospital Gronau GmbH, Gronau, Deutschland
| | - L Kollitsch
- Klinik für Urologie und Kinderurologie, Universitätsklinikum Schleswig-Holstein - Campus Kiel, Arnold-Heller-Straße 3, 24105, Kiel, Deutschland
| | - C Wagner
- Klinik für Urologie, Kinderurologie und urologische Onkologie, Prostatazentrum Nordwest, St. Antonius Hospital Gronau GmbH, Gronau, Deutschland
| | - M Hamann
- Klinik für Urologie und Kinderurologie, Universitätsklinikum Schleswig-Holstein - Campus Kiel, Arnold-Heller-Straße 3, 24105, Kiel, Deutschland
| | - K P Jünemann
- Klinik für Urologie und Kinderurologie, Universitätsklinikum Schleswig-Holstein - Campus Kiel, Arnold-Heller-Straße 3, 24105, Kiel, Deutschland
| | - D Osmonov
- Klinik für Urologie und Kinderurologie, Universitätsklinikum Schleswig-Holstein - Campus Kiel, Arnold-Heller-Straße 3, 24105, Kiel, Deutschland
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Schmitt-Böhrer A, Kolter JF, Kreis A, Hamann C, Bodden C, Sachser N, Asa E, Lesch KP. Impact of different life histories on neuronal morphology in serotonin transporter deficient mice. PHARMACOPSYCHIATRY 2020. [DOI: 10.1055/s-0039-3402985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- A Schmitt-Böhrer
- Universitätsklinikum Würzburg, Zentrum für Psychische Gesundheit, Germany
| | - JF Kolter
- Universitätsklinikum Würzburg, Zentrum für Psychische Gesundheit, Germany
| | - A Kreis
- Universitätsklinikum Würzburg, Zentrum für Psychische Gesundheit, Germany
| | - C Hamann
- Universitätsklinikum Würzburg, Zentrum für Psychische Gesundheit, Germany
| | - C Bodden
- Universitätsklinikum Würzburg, Zentrum für Psychische Gesundheit, Germany
| | - N Sachser
- Universitätsklinikum Würzburg, Zentrum für Psychische Gesundheit, Germany
| | - E Asa
- Universitätsklinikum Würzburg, Zentrum für Psychische Gesundheit, Germany
| | - K-P Lesch
- Universitätsklinikum Würzburg, Zentrum für Psychische Gesundheit, Germany
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Barrett E, Jacobs B, Klasen H, Herguner S, Agnafors S, Banjac V, Bezborodovs N, Cini E, Hamann C, Huscsava MM, Kostadinova M, Kramar Y, Maravic VM, McGrath J, Molteni S, Moron-Nozaleda MG, Mudra S, Nikolova G, Vorkas KP, Prata AT, Revet A, Joseph JR, Serbak R, Tomac A, Van den Steene H, Xylouris G, Zielinska A, Hebebrand J. Correction to: The child and adolescent psychiatry: study of training in Europe (CAP‑STATE). Eur Child Adolesc Psychiatry 2020; 29:409-411. [PMID: 31956946 DOI: 10.1007/s00787-020-01473-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The original article has been corrected.
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Affiliation(s)
- Elizabeth Barrett
- Child and Adolescent Psychiatry, University College Dublin, Dublin, Ireland. .,Child and Adolescent Liaison Psychiatry, Children's University Hospital, Temple St., Dublin 1, Ireland.
| | - Brian Jacobs
- Child and Adolescent Psychiatry, South London and Maudsley Hospital, London, UK.,Section of Child and Adolescent Psychiatry, European Union of Medical Specialists (UEMS-CAP), Brussels, Belgium
| | - Henrikje Klasen
- Department of Psychiatry, Leiden University Medical Centre, Leiden, Netherlands
| | - Sabri Herguner
- Child and Adolescent Psychiatry, Private Practice, Ankara, Turkey
| | - Sara Agnafors
- Division of Child and Adolescent Psychiatry, Department of Clinical and Experimental Medicine, Faculty of Health Sciences, Linköping University, 581 85, Linköping, Sweden
| | - Visnja Banjac
- Clinic of Psychiatry, University Clinical Center of the Republic of Srpska, Radoja Domanovica 21, Banjaluka, Bosnia and Herzegovina
| | - Nikita Bezborodovs
- Department of Psychiatry and Narcology, Riga Stradins University, Tvaika iela 2, Riga, 1005, Latvia
| | - Erica Cini
- Child and Adolescent Psychiatrist, East London Foundation Trust, East London Foundation Trust, London, UK
| | - Christoph Hamann
- University Hospital of Child and Adolescent Psychiatry and Psychotherapy, University of Bern, Forschungsabteilung KJP UPD Bern, Bolligenstrasse 111, Haus A, 3000, Bern 60, Switzerland
| | - Mercedes M Huscsava
- Department of Child and Adolescent Psychiatry, Medical University of Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria
| | - Maya Kostadinova
- Child and Adolescent Psychiatrist, University Hospital "Alexandrovska", Sofia, Bulgaria.,DNCC CAMHS, 44 North Great George's Street, Dublin 1, Ireland
| | - Yuliia Kramar
- TMA ''PSYCHIATRY", Kirilivska str. 103, Kiev, Ukraine
| | - Vanja Mandic Maravic
- Department for Psychotic Disorders, Institute of Mental Health, Belgrade, Serbia
| | - Jane McGrath
- Child and Adolescent Psychiatrist, Linn Dara Child and Adolescent Mental Health Service, Cherry Orchard Hospital, Ballyfermot, Dublin 10, Ireland
| | - Silvia Molteni
- Child Neuropsychiatry Unit, Department of Brain and Behavioral Sciences, University of Pavia, via Mondino 2, 27100, Pavia, Italy
| | - Maria Goretti Moron-Nozaleda
- Department of Psychiatry and Clinical Psychology, Neurodevelopment Outpatient Clinic and Day Hospital for Pre-pubertal Children, Niño Jesús Children's Hospital, Hospital Infantil Universitario Niño Jesús, av/Menéndez Pelayo 65, 28009, Madrid, Spain
| | - Susanne Mudra
- Department of Child and Adolescent Psychiatry, Psychotherapy und Psychosomatics, University Medical Center Hamburg-Eppendorf, Martinistr. 52, W35, 20246, Hamburg, Germany
| | - Gordana Nikolova
- Department of Child and Adolescent Psychiatry, University Clinic of Psychiatry, Belgradska b.b, 1000, Skopje, Macedonia
| | - Kallistheni Pantelidou Vorkas
- Child and Adolescent Psychiatrist, President of Cypriot Society of Child and Adolescent Psychiatry, 77, Kennedy Ave, 1076, Nicosia, Cyprus
| | - Ana Teresa Prata
- Child and Adolescent Psychiatry Specialty, Centro Hospitalar de Lisboa Central, Hospital Dona Estefânia, Rua Jacinta Marto, 1169-045, Lisbon, Portugal
| | - Alexis Revet
- Child and Adolescent Psychiatrist, Department of Child and Adolescent Psychiatry, Faculty of Medicine, Toulouse University Hospital (CHU de Toulouse), UMR1027, INSERM, University of Toulouse III, Toulouse, France
| | - Judeson Royle Joseph
- Child and Adolescent Psyciatric Department, University Hospital of North-Norway, Tromsø, Norway
| | - Reelika Serbak
- Child Psychiatrist, Tallinn Children´s Hospital, Tervise 28, Tallinn, Estonia
| | - Aran Tomac
- Child and Adolescent Psychiatry and in General (Adult) Psychiatry, CAMHS Clare, Unit 6, Quin Rd. Business Pk. Quin Rd., Ennis, Ireland
| | - Helena Van den Steene
- Collaborative Antwerp Psychiatric Research Institute (CAPRI), University of Antwerp, Universiteitsplein 1, 2610, Wilrijk, Belgium
| | - Georgios Xylouris
- Child and Adolescent Psychiatrist, General Childrens Hospital "Agia Sophia", Athens, Greece
| | - Anna Zielinska
- Department of Child and Adolescent Psychiatry, Public Pediatric Teaching Clinical Hospital, Medical University of Warsaw, 63A, Żwirki i Wigury Str., 02-091, Warsaw, Poland
| | - Johannes Hebebrand
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital Essen, University of Duisburg-Essen, Duisburg, Germany
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Barrett E, Jacobs B, Klasen H, Herguner S, Agnafors S, Banjac V, Bezborodovs N, Cini E, Hamann C, Huscsava MM, Kostadinova M, Kramar Y, Maravic VM, McGrath J, Molteni S, Moron-Nozaleda MG, Mudra S, Nikolova G, Vorkas KP, Prata AT, Revet A, Joseph JR, Serbak R, Tomac A, Van den Steene H, Xylouris G, Zielinska A, Hebebrand J. The child and adolescent psychiatry: study of training in Europe (CAP-STATE). Eur Child Adolesc Psychiatry 2020; 29:11-27. [PMID: 31845068 DOI: 10.1007/s00787-019-01416-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 09/29/2019] [Indexed: 10/25/2022]
Abstract
There is great cultural diversity across Europe. This is reflected in the organisation of child and adolescent mental health (CAMH) services and the training of the respective professionals in different countries in Europe. Patients and their parents will want a high quality, knowledgeable, and skillful service from child and adolescent psychiatrists (CAPs) wherever they see them in Europe. A European comparison of training programs allows all stakeholders in different European countries to assess the diversity and to initiate discussions as to the introduction of improvements within national training programs. Major issues to be addressed in comparing child and adolescent psychiatric training programs across Europe include: (1) formal organisation and content of training programs and the relationship to adult psychiatry and paediatrics; (2) flexibility of training, given different trainee interests and that many trainees will have young families; (3) quality of governance of training systems; (4) access to research; and (5) networking. The Child and Adolescent Psychiatry-Study of Training in Europe (CAP-State) is a survey of training for child and adolescent psychiatrists (CAPs) across European countries. It aims to revisit and extend the survey carried out in 2006 by Karabekiroglu and colleagues. The current article is embedded in a special issue of European Child + Adolescent Psychiatry attempting to for the first time address training in CAP at the European and global levels. Structured information was sought from each of 38 European and neighboring countries (subsequently loosely referred to as Europe) and obtained from 31. The information was provided by a senior trainee or recently qualified specialist and their information was checked and supplemented by information from a senior child and adolescent psychiatry trainer. Results showed that there is a very wide range of provision of training in child and adolescent psychiatry in different countries in Europe. There remains very substantial diversity in training across Europe and in the degree to which it is subject to national oversight and governance. Some possible reasons for this variation are discussed and some recommendations made.
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Affiliation(s)
- Elizabeth Barrett
- Child and Adolescent Psychiatry, University College Dublin, Dublin, Ireland. .,Child and Adolescent Liaison Psychiatry, Children's University Hospital, Temple St., Dublin 1, Ireland.
| | - Brian Jacobs
- Child and Adolescent Psychiatry, South London and Maudsley Hospital, London, UK.,Section of Child and Adolescent Psychiatry, European Union of Medical Specialists (UEMS-CAP), Brussels, Belgium
| | - Henrikje Klasen
- Department of Psychiatry, Leiden University Medical Centre, Leiden, Netherlands
| | - Sabri Herguner
- Child and Adolescent Psychiatry, Private Practice, Ankara, Turkey
| | - Sara Agnafors
- Division of Child and Adolescent Psychiatry, Department of Clinical and Experimental Medicine, Faculty of Health Sciences, Linköping University, 581 85, Linköping, Sweden
| | - Visnja Banjac
- Clinic of Psychiatry, University Clinical Center of the Republic of Srpska, Radoja Domanovica 21, Banjaluka, Bosnia and Herzegovina
| | - Nikita Bezborodovs
- Department of Psychiatry and Narcology, Riga Stradins University, Tvaika iela 2, Riga, 1005, Latvia
| | - Erica Cini
- Child and Adolescent Psychiatrist, East London Foundation Trust, East London Foundation Trust, London, UK
| | - Christoph Hamann
- University Hospital of Child and Adolescent Psychiatry and Psychotherapy, University of Bern, Forschungsabteilung KJP UPD Bern, Bolligenstrasse 111, Haus A, 3000, Bern 60, Switzerland
| | - Mercedes M Huscsava
- Department of Child and Adolescent Psychiatry, Medical University of Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria
| | - Maya Kostadinova
- Child and Adolescent Psychiatrist, University Hospital "Alexandrovska", Sofia, Bulgaria.,DNCC CAMHS, 44 North Great George's Street, Dublin 1, Ireland
| | - Yuliia Kramar
- TMA ''PSYCHIATRY", Kirilivska str. 103, Kiev, Ukraine
| | - Vanja Mandic Maravic
- Department for Psychotic Disorders, Institute of Mental Health, Belgrade, Serbia
| | - Jane McGrath
- Child and Adolescent Psychiatrist, Linn Dara Child and Adolescent Mental Health Service, Cherry Orchard Hospital, Ballyfermot, Dublin 10, Ireland
| | - Silvia Molteni
- Child Neuropsychiatry Unit, Department of Brain and Behavioral Sciences, University of Pavia, via Mondino 2, 27100, Pavia, Italy
| | - Maria Goretti Moron-Nozaleda
- Department of Psychiatry and Clinical Psychology, Neurodevelopment Outpatient Clinic and Day Hospital for Pre-pubertal Children, Niño Jesús Children's Hospital, Hospital Infantil Universitario Niño Jesús, av/Menéndez Pelayo 65, 28009, Madrid, Spain
| | - Susanne Mudra
- Department of Child and Adolescent Psychiatry, Psychotherapy und Psychosomatics, University Medical Center Hamburg-Eppendorf, Martinistr. 52, W35, 20246, Hamburg, Germany
| | - Gordana Nikolova
- Department of Child and Adolescent Psychiatry, University Clinic of Psychiatry, Belgradska b.b, 1000, Skopje, Macedonia
| | - Kallistheni Pantelidou Vorkas
- Child and Adolescent Psychiatrist, President of Cypriot Society of Child and Adolescent Psychiatry, 77, Kennedy Ave, 1076, Nicosia, Cyprus
| | - Ana Teresa Prata
- Child and Adolescent Psychiatry Specialty, Centro Hospitalar de Lisboa Central, Hospital Dona Estefânia, Rua Jacinta Marto, 1169-045, Lisbon, Portugal
| | - Alexis Revet
- Child and Adolescent Psychiatrist, Department of Child and Adolescent Psychiatry, Faculty of Medicine, Toulouse University Hospital (CHU de Toulouse), UMR1027, INSERM, University of Toulouse III, Toulouse, France
| | - Judeson Royle Joseph
- Child and Adolescent Psyciatric Department, University Hospital of North-Norway, Tromsø, Norway
| | - Reelika Serbak
- Child Psychiatrist, Tallinn Children´s Hospital, Tervise 28, Tallinn, Estonia
| | - Aran Tomac
- Child and Adolescent Psychiatry and in General (Adult) Psychiatry, CAMHS Clare, Unit 6, Quin Rd. Business Pk. Quin Rd., Ennis, Ireland
| | - Helena Van den Steene
- Collaborative Antwerp Psychiatric Research Institute (CAPRI), University of Antwerp, Universiteitsplein 1, 2610, Wilrijk, Belgium
| | - Georgios Xylouris
- Child and Adolescent Psychiatrist, General Childrens Hospital "Agia Sophia", Athens, Greece
| | - Anna Zielinska
- Department of Child and Adolescent Psychiatry, Public Pediatric Teaching Clinical Hospital, Medical University of Warsaw, 63A, Żwirki i Wigury Str., 02-091, Warsaw, Poland
| | - Johannes Hebebrand
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital Essen, University of Duisburg-Essen, Duisburg, Germany
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Hamann C, Rusterholz T, Studer M, Kaess M, Tarokh L. Association between depressive symptoms and sleep neurophysiology in early adolescence. J Child Psychol Psychiatry 2019; 60:1334-1342. [PMID: 31512761 DOI: 10.1111/jcpp.13088] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/04/2019] [Indexed: 01/01/2023]
Abstract
BACKGROUND Depression is highly prevalent among adolescents, and depressive symptoms rise rapidly during early adolescence. Depression is often accompanied by subjective sleep complaints and alterations in sleep neurophysiology. In this study, we examine whether depressive symptoms, measured on a continuum, are associated with subjective and objective (sleep architecture and neurophysiology) measures of sleep in early adolescence. METHODS High-density sleep EEG, actigraphy, and self-reported sleep were measured in 52 early adolescents (12.31 years; SD: 1.121; 25 female). Depressive symptoms were measured on a continuum using the Center for Epidemiological Studies Depression Scale (CES-D). The association between depressive symptoms and 2 weeks of actigraphy, self-reported sleep, sleep architecture, and sleep neurophysiology (slow wave activity and sigma power) was determined via multiple linear regression with factors age, sex, and pubertal status. RESULTS Despite no association between polysomnography measures of sleep quality and depressive symptoms, individuals with more depressive symptoms manifested worse actigraphically measured sleep. Less sleep spindle activity, as reflected in nonrapid eye movement sleep sigma power, was associated with more depressive symptoms over a large cluster encompassing temporal, parietal, and occipital regions. Furthermore, worse subjectively reported sleep quality was also associated with less sigma power over these same areas. Puberty, age, and sex did not impact this association. CONCLUSIONS Sleep spindles have been hypothesized to protect sleep against environmental disturbances. Thus, diminished spindle power may be a subtle sign of disrupted sleep and its association with depressive symptoms in early adolescence may signal vulnerability for depression.
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Affiliation(s)
- Christoph Hamann
- University Hospital of Child and Adolescent Psychiatry and Psychotherapy, University of Bern, Bern, Switzerland
| | - Thomas Rusterholz
- University Hospital of Child and Adolescent Psychiatry and Psychotherapy, University of Bern, Bern, Switzerland.,Institute of Pharmacology and Toxicology, University of Zurich, Zurich, Switzerland.,Department of Neurology, University Hospital, Inselspital, Bern, Switzerland
| | - Martina Studer
- Department of Neurology, University Hospital, Inselspital, Bern, Switzerland
| | - Michael Kaess
- University Hospital of Child and Adolescent Psychiatry and Psychotherapy, University of Bern, Bern, Switzerland.,Section for Translational Child and Adolescent Psychiatry, Department of Child and Adolescent Psychiatry, Center for Psychosocial Medicine, University Hospital Heidelberg, Heidelberg, Germany
| | - Leila Tarokh
- University Hospital of Child and Adolescent Psychiatry and Psychotherapy, University of Bern, Bern, Switzerland
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Hornung J, Hamann C, Pöpperl G, Tatsch K, Koch W. Equipment-independent reference values for dopamine transporter imaging with 123I-FP-CIT. Nuklearmedizin 2017. [DOI: 10.1160/nukmed-0037] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Summary
Aim: Reliable reference values are helpful to interpret and compare the results of dopamine transporter imaging with SPECT. Since semi-quantitative reference values cannot be easily transferred between imaging equipments, this study aimed to establish equipment independent normal values for the true striatal binding of 123I-FP-CIT. Patients, methods: Specific striatal FP-CIT binding of 6 healthy volunteers and 26 patients with essential tremor were used to generate a reference range by applying an equipment specific resolution dependent factor to compensate for recovery effects. This factor has been determined previously by a series of standardized phantom measurements of an anthropomorphic basal ganglia phantom. Herewith, the resulting DAT binding values represent the expected true specific binding in the striatum. Results: On average, true specific striatal binding was 5.83 ± 0.96 in healthy controls, 5.25 ± 0.67 in patients with essential tremor and 5.36 ± 0.75 in the entire study cohort. Conclusion: These preliminary results may serve as a basis for the generation of a generally accepted equipment independent reference range for dopamine transporter imaging with 123I-FP-CIT. By a simple phantom measurement that can be accomplished within one day factors related to specific imaging equipment and processing can be corrected for, resulting in specific binding values which may enable a more standardized interpretation of dopamine transporter scans.
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13
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Hamann C. New Fragrance Mix I formulation in TRUE Test. Br J Dermatol 2016; 175:824. [DOI: 10.1111/bjd.14663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- C. Hamann
- SmartPractice; 3400 E McDowell Road Phoenix AZ 85008 U.S.A
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14
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Hamann C, Schultze-Lutter F, Tarokh L. Web-Based Assessment of Mental Well-Being in Early Adolescence: A Reliability Study. J Med Internet Res 2016; 18:e138. [PMID: 27306932 PMCID: PMC4927803 DOI: 10.2196/jmir.5482] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Revised: 03/22/2016] [Accepted: 04/17/2016] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND The ever-increasing use of the Internet among adolescents represents an emerging opportunity for researchers to gain access to larger samples, which can be queried over several years longitudinally. Among adolescents, young adolescents (ages 11 to 13 years) are of particular interest to clinicians as this is a transitional stage, during which depressive and anxiety symptoms often emerge. However, it remains unclear whether these youngest adolescents can accurately answer questions about their mental well-being using a Web-based platform. OBJECTIVE The aim of the study was to examine the accuracy of responses obtained from Web-based questionnaires by comparing Web-based with paper-and-pencil versions of depression and anxiety questionnaires. METHODS The primary outcome was the score on the depression and anxiety questionnaires under two conditions: (1) paper-and-pencil and (2) Web-based versions. Twenty-eight adolescents (aged 11-13 years, mean age 12.78 years and SD 0.78; 18 females, 64%) were randomly assigned to complete either the paper-and-pencil or the Web-based questionnaire first. Intraclass correlation coefficients (ICCs) were calculated to measure intrarater reliability. Intraclass correlation coefficients were calculated separately for depression (Children's Depression Inventory, CDI) and anxiety (Spence Children's Anxiety Scale, SCAS) questionnaires. RESULTS On average, it took participants 17 minutes (SD 6) to answer 116 questions online. Intraclass correlation coefficient analysis revealed high intrarater reliability when comparing Web-based with paper-and-pencil responses for both CDI (ICC=.88; P<.001) and the SCAS (ICC=.95; P<.001). According to published criteria, both of these values are in the "almost perfect" category indicating the highest degree of reliability. CONCLUSIONS The results of the study show an excellent reliability of Web-based assessment in 11- to 13-year-old children as compared with the standard paper-pencil assessment. Furthermore, we found that Web-based assessments with young adolescents are highly feasible, with all enrolled participants completing the Web-based form. As early adolescence is a time of remarkable social and behavioral changes, these findings open up new avenues for researchers from diverse fields who are interested in studying large samples of young adolescents over time.
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Affiliation(s)
- Christoph Hamann
- University Hospital of Child and Adolescent Psychiatry and Psychotherapy, University of Bern, Bern, Switzerland
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Boehlke C, Janusch H, Hamann C, Powelske C, Mergen M, Herbst H, Kotsis F, Nitschke R, Kuehn EW. A Cilia Independent Role of Ift88/Polaris during Cell Migration. PLoS One 2015; 10:e0140378. [PMID: 26465598 PMCID: PMC4605505 DOI: 10.1371/journal.pone.0140378] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Accepted: 09/24/2015] [Indexed: 11/29/2022] Open
Abstract
Ift88 is a central component of the intraflagellar transport (Ift) complex B, essential for the building of cilia and flagella from single cell organisms to mammals. Loss of Ift88 results in the absence of cilia and causes left-right asymmetry defects, disordered Hedgehog signaling, and polycystic kidney disease, all of which are explained by aberrant ciliary function. In addition, a number of extraciliary functions of Ift88 have been described that affect the cell-cycle, mitosis, and targeting of the T-cell receptor to the immunological synapse. Similarly, another essential ciliary molecule, the kinesin-2 subunit Kif3a, which transports Ift-B in the cilium, affects microtubule (MT) dynamics at the leading edge of migrating cells independently of cilia. We now show that loss of Ift88 impairs cell migration irrespective of cilia. Ift88 is required for the polarization of migrating MDCK cells, and Ift88 depleted cells have fewer MTs at the leading edge. Neither MT dynamics nor MT nucleation are dependent on Ift88. Our findings dissociate the function of Ift88 from Kif3a outside the cilium and suggest a novel extraciliary function for Ift88. Future studies need to address what unifying mechanism underlies the different extraciliary functions of Ift88.
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Affiliation(s)
| | - Heike Janusch
- Department of Nephrology, University Hospital, Freiburg, Germany
| | - Christoph Hamann
- Department of Nephrology, University Hospital, Freiburg, Germany
| | | | - Miriam Mergen
- Department of Nephrology, University Hospital, Freiburg, Germany
| | - Henriette Herbst
- Department of Nephrology, University Hospital, Freiburg, Germany
| | - Fruzsina Kotsis
- Department of Nephrology, University Hospital, Freiburg, Germany
| | - Roland Nitschke
- Life Imaging Center, Center for Biosystems Analysis, Albert-Ludwig-University, Freiburg, Germany
- Center for Biological Signaling Studies (bioss), Albert-Ludwig-University, Freiburg, Germany
| | - E. Wolfgang Kuehn
- Department of Nephrology, University Hospital, Freiburg, Germany
- Center for Biological Signaling Studies (bioss), Albert-Ludwig-University, Freiburg, Germany
- * E-mail:
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16
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Hamann MF, Hamann C, Trettel A, Jünemann KP, Naumann CM. Computer-aided transrectal ultrasound: does prostate HistoScanning™ improve detection performance of prostate cancer in repeat biopsies? BMC Urol 2015. [PMID: 26223353 PMCID: PMC4518605 DOI: 10.1186/s12894-015-0072-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Background An imaging tool providing reliable prostate cancer (PCa) detection and localization is necessary to improve common diagnostic pathway with ultrasound targeted biopsies. To determine the performance of transrectal ultrasound (TRUS) augmented by prostate HistoScanningTM analysis (PHS) we investigated the detection of prostate cancer (PCa) foci in repeat prostate biopsies (Bx). Methods 97 men with a mean age of 66.2 (44 – 82) years underwent PHS augmented TRUS analysis prior to a repeat Bx. Three PHS positive foci were defined in accordance with 6 bilateral prostatic sectors. Targeted Bx (tBx) limited to PHS positive foci and a systematic 14-core backup Bx (sBx) were taken. Results were correlated to biopsy outcome. Sensitivity, specificity, predictive accuracy, negative predictive value (NPV) and positive predictive value (PPV) were calculated. Results PCa was found in 31 of 97 (32 %) patients. Detection rate in tBx was significantly higher (p < .001). Detection rate in tBx and sBx did not differ on patient level(p ≥ 0.7). PHS sensitivity, specificity, predictive accuracy, PPV and NPV were 45 %, 83 %, 80 %, 19 % and 95 %, respectively. Conclusions PHS augmented TRUS identifies abnormal prostatic tissue. Although sensitivity and PPV for PCa are low, PHS information facilitates Bx targeting to vulnerable foci and results in a higher cancer detection rate. PHS targeted Bx should be considered in patients at persistent risk of PCa.
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Affiliation(s)
- Moritz Franz Hamann
- Department of Urology and Pediatric Urology, University Hospital Schleswig Holstein, Campus Kiel, Arnold Heller Str. 3, 24105, Kiel, Germany.
| | - C Hamann
- Department of Urology and Pediatric Urology, University Hospital Schleswig Holstein, Campus Kiel, Arnold Heller Str. 3, 24105, Kiel, Germany.
| | - A Trettel
- Department of Urology and Pediatric Urology, University Hospital Schleswig Holstein, Campus Kiel, Arnold Heller Str. 3, 24105, Kiel, Germany.
| | - K P Jünemann
- Department of Urology and Pediatric Urology, University Hospital Schleswig Holstein, Campus Kiel, Arnold Heller Str. 3, 24105, Kiel, Germany.
| | - C M Naumann
- Department of Urology and Pediatric Urology, University Hospital Schleswig Holstein, Campus Kiel, Arnold Heller Str. 3, 24105, Kiel, Germany.
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Hamann CR, Brankov N, Hamann D, Hamann C. Chronic areolar dermatitis due to methylisothiazolinone-containing bodywash. Clin Exp Dermatol 2015; 41:114-5. [DOI: 10.1111/ced.12712] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/02/2015] [Indexed: 11/28/2022]
Affiliation(s)
- C. R. Hamann
- Loma Linda University School of Medicine; Loma Linda CA USA
| | - N. Brankov
- Loma Linda University School of Medicine; Loma Linda CA USA
| | - D. Hamann
- Department of Internal Medicine; Division of Dermatology; The Ohio State University; Columbus OH USA
| | - C. Hamann
- Contact Dermatitis Institute; Phoenix AZ USA
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Ollig S, Kieback DG, Reinhardt K, Suesse A, Hamann C. Die Kolposuspension mit BSC transischiorektal – 5-Jahres Langzeitergebnisse. Geburtshilfe Frauenheilkd 2014. [DOI: 10.1055/s-0034-1388254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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19
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Ollig S, Afanasev O, Hamann C, Kieback DG. Die Kolposuspension mit BSC direct – Minimal invasiv, maximal effektiv. Geburtshilfe Frauenheilkd 2014. [DOI: 10.1055/s-0034-1388278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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20
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Kirschner S, Hartmann A, Günther KP, Hamann C. [Endoprosthetic treatment of osteoporosis-related coxarthrosis : aspects of safe patient treatment]. Orthopade 2014; 43:353-64. [PMID: 24664134 DOI: 10.1007/s00132-013-2167-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND With increasing life expectancy the prevalence of osteoarthritis is also substantially rising. Patients aged between 65 and 75 years scheduled for total joint arthroplasty suffer from undetected osteoporosis in 20-25% of cases. OBJECTIVES How to determine osteoporosis during preoperative workup? Which conclusions can be drawn for the operation treatment and the postoperative course? METHODS The literature dealing with the prevalence of osteoporosis, perioperative complications of total hip arthroplasty, selected register informations, guidelines for diagnostics and treatment of osteoporosis and for the postoperative treatment are summarized and discussed. RESULTS The fracture risk is determined according to the guidelines of the Dachverband Osteologie (DVO, Governing Body on Osteology). The implant and the anchorage are selected based on the risk of suffering from osteoporosis. An intraoperative fracture and early aseptic loosening are the main operative risk factors. For the postoperative course in addition to education about arthroplasty, adequate support for prevention of falls is mandatory. Continuous physiotherapy with muscular strengthening is advisable. The long-term medication should be checked for risks in the PRISCUS list of potentially inappropriate medication in the elderly and non-steroidal anti-inflammatory drugs (NSAIDs) should not be prescribed in patients with cardiac comorbidities. Patients with confirmed osteoporosis should be treated with antiresorptive agents.
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Affiliation(s)
- S Kirschner
- UniversitätsCentrum für Orthopädie und Unfallchirurgie, Universitätsklinikum Carl-Gustav Carus, Technische Universität Dresden AöR, Fetscherstr. 74, 01307, Dresden, Deutschland,
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Picke AK, Hamann C, Rauner M, Hofbauer LC. Improvement of osteoblast function and effect of intermittent PTH therapy in high glucose conditions via blocking of N-linked glycosylation. Exp Clin Endocrinol Diabetes 2014. [DOI: 10.1055/s-0034-1372054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Shoolin J, Ozeran L, Hamann C, Bria W. Association of Medical Directors of Information Systems consensus on inpatient electronic health record documentation. Appl Clin Inform 2013; 4:293-303. [PMID: 23874365 DOI: 10.4338/aci-2013-02-r-0012] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2013] [Accepted: 06/11/2013] [Indexed: 11/23/2022] Open
Abstract
In 2013, electronic documentation of clinical care stands at a crossroads. The benefits of creating digital notes are at risk of being overwhelmed by the inclusion of easily importable detail. Providers are the primary authors of encounters with patients. We must document clearly our understanding of patients and our communication with them and our colleagues. We want to document efficiently to meet without exceeding documentation guidelines. We copy and paste documentation, because it not only simplifies the documentation process generally, but also supports meeting coding and regulatory requirements specifically. Since the primary goal of our profession is to spend as much time as possible listening to, understanding and helping patients, clinicians need information technology to make electronic documentation easier, not harder. At the same time, there should be reasonable restrictions on the use of copy and paste to limit the growing challenge of 'note bloat'. We must find the right balance between ease of use and thoughtless documentation. The guiding principles in this document may be used to launch an interdisciplinary dialogue that promotes useful and necessary documentation that best facilitates efficient information capture and effective display.
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Affiliation(s)
- J Shoolin
- Advocate Healthcare , Glencoe, Illinois, USA.
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Fritzsche H, Kirschner S, Hartmann A, Hamann C. [Femoral nerve palsy as delayed complication after total hip replacement: delayed hematoma formation in unexpected screw malpositioning]. Orthopade 2013; 42:651-3. [PMID: 23695194 DOI: 10.1007/s00132-013-2115-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Nerve injury after total hip replacement is a rare but severe complication. If the nerve lesion becomes evident in the early postoperative phase the lesion is often due to an incorrect implant position, direct nerve injury or vascular injury with manifestation of a hematoma which results in nerve compression. Secondary nerve lesions are more often due to a chronic hematoma with nerve compression. Secondary nerve lesions in particular are often a diagnostic challenge and should lead to an early revision after comprehensive imaging diagnostics.
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Affiliation(s)
- H Fritzsche
- Klinik und Poliklinik für Orthopädie, Universitätsklinikum Carl Gustav Carus, Fetscherstr. 74, 01307, Dresden, Deutschland
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Andreou D, Boldt H, Werner M, Hamann C, Pink D, Tunn PU. Sentinel node biopsy in soft tissue sarcoma subtypes with a high propensity for regional lymphatic spread—results of a large prospective trial. Ann Oncol 2013; 24:1400-5. [DOI: 10.1093/annonc/mds650] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
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Hamann C, Zimerson E, Hamann D, Laugesen L, Carlsson B, Nathansen C, Hamann C, Bruze M. Concentration variability of potent allergens of p-tert-butylphenol-formaldehyde resin (PTBP-FR) in patch test preparations and commercially available PTBP-FR. Br J Dermatol 2012; 166:761-70. [DOI: 10.1111/j.1365-2133.2011.10781.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Goettsch C, Rauner M, Hamann C, Sinningen K, Hempel U, Bornstein SR, Hofbauer LC. Nuclear factor of activated T cells mediates oxidised LDL-induced calcification of vascular smooth muscle cells. Diabetologia 2011; 54:2690-701. [PMID: 21701818 DOI: 10.1007/s00125-011-2219-0] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2011] [Accepted: 05/23/2011] [Indexed: 12/21/2022]
Abstract
AIMS/HYPOTHESIS Vascular calcification is a prominent feature of both atherosclerosis and diabetes, and is clinically associated with osteoporosis. The expression of bone-regulatory factors and the impact of oxidative stress in aortic calcification are well-documented. Recently, nuclear factor of activated T cells (NFAT) cytoplasmic, calcineurin-dependent 1 (NFATc1) was identified in calcified aortic valves and has been implicated in vascular calcification. Therefore, we assessed the mechanisms of osteogenic transdifferentiation of vascular smooth muscle cells induced by oxidised LDL (oxLDL) and evaluated the role of NFAT in this process. METHODS Human coronary artery smooth muscle cells (HCASMCs) were cultured for 21 days in medium supplemented with oxLDL. NFAT was inhibited using the NFAT inhibitor VIVIT, or by knockdown with small interfering RNA (siRNA). Osteogenic transdifferentiation was assessed by gene expression, matrix mineralisation and alkaline phosphatase activity. RESULTS Exposure to oxLDL caused the transformation of HCASMCs towards an osteoblast-like phenotype based on increased mineral matrix formation and RUNX2 expression. NFATc1 blockade completely prevented oxLDL-induced osteogenic transformation of HCASMCs as well as oxLDL-induced stimulation of osteoblast differentiation. In contrast, matrix mineralisation induced by osteogenic medium was independent of the NFAT pathway. Of note, oxLDL-conditioned medium from HCASMCs transferred to bone cells promoted osteoblast mineralisation. Consistent with these in vitro findings, diabetic rats with a twofold increase in oxidised lipid levels displayed higher aortic calcium concentrations and increased expression of osteogenic markers and production of NFATc1. CONCLUSIONS/INTERPRETATION Our results identify the NFAT signalling pathway as a novel regulator of oxLDL-induced transdifferentiation of vascular smooth muscle cells towards an osteoblast-like phenotype.
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Affiliation(s)
- C Goettsch
- Division of Endocrinology, Diabetes and Metabolic Bone Diseases, Department of Medicine III, Technical University Medical Center, Fetscherstraße 74, 01307 Dresden, Germany
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Groß GA, Hamann C, Günther PM, Köhler JM. Formation of Polymer and Nanoparticle Doped Polymer Minirods by Use of the Microsegmented Flow Principle. Chem Eng Technol 2007. [DOI: 10.1002/ceat.200600334] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Koch W, Hornung J, Hamann C, Pöpperl G, Tatsch K. Equipment-independent reference values for dopamine transporter imaging with 123I-FP-CIT. Nuklearmedizin 2007; 46:107-11. [PMID: 17549322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
AIM Reliable reference values are helpful to interpret and compare the results of dopamine transporter imaging with SPECT. Since semi-quantitative reference values cannot be easily transferred between imaging equipments, this study aimed to establish equipment independent normal values for the true striatal binding of 123I-FP-CIT. PATIENTS, METHODS Specific striatal FP-CIT binding of 6 healthy volunteers and 26 patients with essential tremor were used to generate a reference range by applying an equipment specific resolution dependent factor to compensate for recovery effects. This factor has been determined previously by a series of standardized phantom measurements of an anthropomorphic basal ganglia phantom. Herewith, the resulting DAT binding values represent the expected true specific binding in the striatum. RESULTS On average, true specific striatal binding was 5.83 +/- 0.96 in healthy controls, 5.25 +/- 0.67 in patients with essential tremor and 5.36 +/- 0.75 in the entire study cohort. CONCLUSION These preliminary results may serve as a basis for the generation of a generally accepted equipment independent reference range for dopamine transporter imaging with 123I-FP-CIT. By a simple phantom measurement that can be accomplished within one day factors related to specific imaging equipment and processing can be corrected for, resulting in specific binding values which may enable a more standardized interpretation of dopamine transporter scans.
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Affiliation(s)
- W Koch
- Department of Nuclear Medicine, University of Munich, Munich, Germany.
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Hamann C, Rudolf J, von Specht H, Freigang B. Die vestibulär evozierten Muskelpotenziale in Abhängigkeit vom nervalen Ursprung und der Lage eines Akustikusneurinoms. HNO 2005; 53:690-4. [PMID: 15558221 DOI: 10.1007/s00106-004-1189-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
INTRODUCTION Most acoustic neuromas (AN) originate from the inferior vestibular nerve (IVN). Vestibular evoked myogenic potentials (VEMP) are accepted as the only unilateral test for the function of the sacculus and the IVN. METHODS The influence of the origin from the IVN and superior vestibular nerve (SVN), and the position of the AN in relation to the internal auditory canal on VEMPs was investigated. A total of 39 patients (aged: 30-67 years, mean: 53 years) were examined. The VEMPs were recorded on the activated sternocleidomastoid muscle and averaged over 200 stimuli. Tone bursts (95 dB nHL; 500 Hz; stimulation rate 5 Hz) were used to generate the VEMPs. RESULTS The exact origin of the AN from the SVN or the IVN could be determined intraoperatively and correlated using VEMP in 28 patients. CONCLUSION The origin of the AN has only a marginal influence on the results of VEMP measurements. The position of the AN in relation to the internal auditory canal seems to have more influence than the origin.
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Affiliation(s)
- C Hamann
- Klinik für Hals-Nasen-Ohren-Heilkunde des Universitätsklinikums Magdeburg.
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Rudolf J, Lampe H, Hamann C, Freigang B. Das Hörvermögen nach Akustikusneurinomexstirpation ist dauerhaft nutzbar. Laryngorhinootologie 2004. [DOI: 10.1055/s-2004-823328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Hamann C, Rudolf J, von Specht H, Freigang B. Die Funktion des Sakkulus bei der akuten peripher vestibulären Störung. Laryngorhinootologie 2004. [DOI: 10.1055/s-2004-823466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Hamann C, Kern JM, Sauvage JP. Palladium(ii)-directed formation of pseudo-rotaxanes : the 3 + 1 approach to threaded species using square-planar geometries. Dalton Trans 2003. [DOI: 10.1039/b306277e] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Clarke AH, Schönfeld U, Hamann C, Scherer H. Measuring unilateral otolith function via the otolith-ocular response and the subjective visual vertical. Acta Otolaryngol Suppl 2002; 545:84-7. [PMID: 11677750 DOI: 10.1080/000164801750388180] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
In the present study, attention is directed to the unilateral response of the otolith system to static and dynamic tilt, as reflected by subjective estimation of the visual vertical (oculogravic perception). Measurements were performed with a variable radius rotary chair, which permits controlled modulation of the centripetal, or radial, acceleration. By limiting the radius, i.e. eccentric displacement of the head by 3.5 cm during constant-velocity rotation about the earth-vertical axis, adequate unilateral stimulation of the otolith organ--predominantly the utricle--is generated, without involving the semicircular canals. This paradigm has been employed to measure the unilateral utriculo-ocular response. In contrast to the otolith-ocular response (OOR), the subjective visual vertical (SVV) reflects the processing of otolithic information in the higher brain centres (thalamus, vestibular cortex). Exploitation of these two complementary approaches provides useful information for both experimental and clinical scientists. The findings also reveal that centripetal acceleratory stimulation during constant angular velocity with the subject centred on axis is sufficient to localize peripheral otolith dysfunction by means of SVV estimation. This represents a novel test of otolith function that can be easily integrated into routine clinical testing.
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Affiliation(s)
- A H Clarke
- Vestibular Research Laboratory HNO-Klinik, Universitätsklinikum Benjamin Franklin Freie Universität Berlin, Berlin, Germany
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Abstract
BACKGROUND During constant velocity rotation about the earth's vertical axis, eccentric displacement of the head can be used to generate adequate stimulation of the otolith organs. More recently, studies have been performed with a variable radius rotatory chair, which permits a controlled modulation of the centripetal or radial acceleration, to achieve linear acceleration frequencies much lower than with a conventional linear sled. METHODS In the present study, frequency response and threshold testing was performed using sinusoidal modulation of the chair radius. Three-dimensional eye movements were recorded with binocular video-oculography. RESULTS The gain (0.09 degree/degree at 0.03 Hz, 0.009 degree/degree at 1 Hz) and phase relationships of the otolith-ocular response (OOR) show a low-pass characteristic over the measured range of 0.03-1.0 Hz. In comparison to the flat response of neurophysiological recordings from the otolith afferent, our findings support the idea that any low-pass filtering of otolith afferents occurs at the level of the vestibular nuclei. CONCLUSION The OOR could be detected at acceleration levels of 0.03 m/s2, much lower than the subjective threshold for the perception of 0.08 m/s2.
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Affiliation(s)
- C Hamann
- Freie Universität Berlin, Universitätsklinikum Benjamin Franklin, Hals-Nasen-Ohrenklinik, Labor für experimentelle Gleichgewichtsforschung, Hindenburgdamm 30, 12200 Berlin.
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Abstract
AIMS Substance dose-related comparison of relaxation effect of nitroglycerin (GTN) and the beta 2-mimetic substance fenoterol in human myometrial tissue. METHODS Test criterion is the isometric force development of isolated human myometrial strips. These muscle strips were removed from the lower uterine segment at cesarean section. Fenoterol in concentrations of 3 x 10(-8)-10(-5) mol/l or GTN in concentrations of 1.7 x 10(-8)-5.8 x 10(-4) mol/l were applied to the 2 x 2 x 10-mm strips, which were fixed and maintained in tissue baths. The curves were plotted on line. The integral or the "area under the curve" (AUC) served as the parameter for muscle strip activity. RESULTS A total of 100 strips from 20 patients were used. GTN demonstrated a significant relaxation effect in the in vitro model on human myometrial strips from pregnant women already treated with oxytocin. The effect was able to be enhanced to a point where oxytocin-induced contractions were completely absent. A relatively clear connection was demonstrated between dose and effect whereby increased muscle relaxation resulted at increased concentrations. Compared to GTN application, muscle strip relaxation was less pronounced under fenoterol; a complete inhibition of myometrial activity was not achieved under fenoterol. CONCLUSIONS With respect to relaxation of the myometrial tissue samples the NO donor GTN is at least as potent as the standard tocolytic agent fenoterol in the in vitro model.
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Affiliation(s)
- M David
- Clinic for Gynecology and Obstetrics, University Clinic Charité, Berlin.
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Hamann C, Werner RA, Franzblau A, Rodgers PA, Siew C, Gruninger S. Prevalence of carpal tunnel syndrome and median mononeuropathy among dentists. J Am Dent Assoc 2001; 132:163-70; quiz 223-4. [PMID: 11217588 DOI: 10.14219/jada.archive.2001.0150] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND The authors undertook a study to determine the prevalence in dentists of abnormal sensory nerve conduction and/or symptoms of carpal tunnel syndrome, or CTS, the most common nerve entrapment syndrome. METHODS In a cross-sectional study, dentists (n = 1,079) were screened during the American Dental Association's Annual Health Screening Program in 1997 and 1998 by means of standard electrodiagnostic measures in the dominant hand and a self-reported symptom questionnaire. The authors diagnosed a median mononeuropathy from a 0.5- or 0.8-millisecond, or ms, prolongation of the median sensory-evoked peak latency compared to the ulnar latency. They diagnosed CTS if the subject also had accompanying symptoms of numbness, tingling or pain. RESULTS Thirteen percent of screened dentists were diagnosed with a median mononeuropathy (using a 0.5-ms prolongation as the criterion), but only 32 percent of these had symptoms consistent with CTS (4.8 percent overall). When the 0.8-ms prolongation was used as the electrodiagnostic criterion, only 2.9 percent (overall) were diagnosed with CTS. People with diabetes, rheumatoid arthritis and obesity were more likely to have a median mononeuropathy. CONCLUSIONS The prevalence of symptoms consistent with CTS in the dominant hand among dentists was higher than the prevalence in the general population. However, when electrodiagnostic confirmation is added, the prevalence of CTS was nearly the same as that among the general population. CLINICAL IMPLICATIONS Early recognition of CTS can lead to more effective management. Education regarding ergonomic risk factors can be an effective preventive measure.
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Affiliation(s)
- C Hamann
- Department of Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor.
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Sanz Garcia S, Santos Heredero X, Izquierdo Hernandez A, Pascual Peña E, Bilbao de Aledo G, Hamann C. Experimental model for local application of growth factors in skin re-epithelialisation. Scand J Plast Reconstr Surg Hand Surg 2000; 34:199-206. [PMID: 11020915 DOI: 10.1080/02844310050159765] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
We did an experimental study to assess the effects of different growth factors on re-epithelialisation of skin wounds by creating a partial-thickness defect in rats with a handle dermatome. Three different growth factors that are particularly involved in the re-epithelialisation phase of wound repair (epidermal growth factor (EGF), keratinocyte growth factor (KGF), and basic fibroblast growth factor (FGF-b) n = 10 in each group) were applied locally in a hydrocolloid dressing containing solutions of the different factors (EGF 10 micrograms/ml, KGF 3.3 ng/ml, bFGF 1 microgram/ml). The dressings were changed daily. The thickness of the epithelium, the percentage of re-epithelialisation, and the maturity of the epithelium were quantified and measured morphometrically. The results showed that: the experimental model allowed us to apply the growth factors, while continuously maintaining the dose within the maximum activity of the growth factor; when EGF, KGF, and bFGF were given according to the protocol there was significant thickening of the new epidermis (p < 0.01) and acceleration of the re-epithelialisation (p < 0.05) rate compared with controls, and significantly more mature epithelium grew (p < 0.05) all of which were evident on both the third and the fifth days; and EGF and KGF cause a more epidermal thickening than bFGF.
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Affiliation(s)
- S Sanz Garcia
- Department of Plastic Surgery, Hospital Universitario del Aire, Madrid, Spain
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Santos FX, Arroyo C, García I, Blasco R, Obispo JM, Hamann C, Espejo L. Role of mast cells in the pathogenesis of postburn inflammatory response: reactive oxygen species as mast cell stimulators. Burns 2000; 26:145-7. [PMID: 10716357 DOI: 10.1016/s0305-4179(99)00021-2] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Thermal trauma has a direct effect on mast cells, triggering the secretion of histamine. This secretion leads to an enhanced xanthine oxidase activity and an increased production of reactive oxygen species (ROS), the latter being produced after burns through differing mechanisms. As ROS have been shown to have deleterious effects on cellular membranes, a lesion of the mast cell membrane could close the circle of autoinjury due to the vasoactive actions of mast cell mediators. Our studies were designed to assess the potentiality of ROS as stimulators of mast cell degranulation after burns by comparing two groups of rats treated, respectively, with SOD and saline solution after a scald injury. Plasma levels of tryptase and histamine were analyzed as markers of mast cell activity. A comparison of the mean increases of tryptase between baseline and 3-h postburn levels in the two groups shows significant differences (p < 0.001) (control: 0.13+/-0.04, SOD: 0.03+/-0.01). When comparing the mean increases between the baseline and 3 h postburn levels of histamine in the two groups, significant differences were also found (p < 0.001) (control group: 2.70+/-0.57. SOD group: 1.22+/-0.32). The lower levels of histamine and tryptase induced by SOD provides indirect evidence that ROS are involved in the process, causing the release of such mediators by mast cells, which may in turn suggest that ROS can act as stimulators of mast cell degranulation in burns.
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Affiliation(s)
- F X Santos
- Experimental Surgery Unit, Hospital del Aire, Madrid, Spain.
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Affiliation(s)
- A H Clarke
- Vestibular Research Laboratory, Universitätsklinikum Benjamin Franklin, Freie Universität, Berlin.
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Hamann C, Hegemann J, Hildebrandt A. Detection of polycyclic aromatic hydrocarbon degradation genes in different soil bacteria by polymerase chain reaction and DNA hybridization. FEMS Microbiol Lett 1999; 173:255-63. [PMID: 10220903 DOI: 10.1111/j.1574-6968.1999.tb13510.x] [Citation(s) in RCA: 66] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Twenty different strains of Pseudomonas, Mycobacterium, Gordona, Sphingomonas, Rhodococcus and Xanthomonas which degrade polycyclic aromatic hydrocarbons (PAH) were characterized in respect to genes encoding degradation enzymes for PAH. Genomic DNA from these strains was hybridized with a fragment of ndoB, coding for the large iron sulfur protein (ISP alpha) of the naphthalene dioxygenase from Pseudomonas putida PaW736 (NCIB 9816). A group of seven naphthalene-degrading Pseudomonas strains showed strong hybridization with the ndoB probe, and five Gordona, Mycobacterium, Rhodococcus and Pseudomonas strains able to degrade higher molecular weight PAH showed weaker hybridization signals. Using a polymerase chain reaction (PCR) approach, seven naphthalene-degrading Pseudomonas strains showed a PCR fragment of the expected size with ndoB-specific primers and additionally ten strains of Gordona, Mycobacterium, Pseudomonas, Sphingomonas and Xanthomonas able to degrade higher molecular weight PAH were detected with degenerate primer-pools specific for the ISP alpha [2Fe-2S]-Rieske center of diverse aromatic hydrocarbon dioxygenases. This suggests a molecular relationship between genes coding for PAH catabolism in various PAH-degrading bacterial taxa, which could be used to evaluate the PAH-degradation potential of mixed populations.
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Affiliation(s)
- C Hamann
- Department of Biology, University of Bremen, Germany
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Hambrecht R, Fiehn E, Weigl C, Gielen S, Hamann C, Kaiser R, Yu J, Adams V, Niebauer J, Schuler G. Regular physical exercise corrects endothelial dysfunction and improves exercise capacity in patients with chronic heart failure. Circulation 1998; 98:2709-15. [PMID: 9851957 DOI: 10.1161/01.cir.98.24.2709] [Citation(s) in RCA: 582] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND The purpose of this study was to determine the effects of systemic exercise training on endothelium-mediated arteriolar vasodilation of the lower limb and its relation to exercise capacity in chronic heart failure (CHF). Endothelial dysfunction is a key feature of CHF, contributing to increased peripheral vasoconstriction and impaired exercise capacity. Local handgrip exercise has previously been shown to enhance endothelium-dependent vasodilation in conduit and resistance vessels in CHF. METHODS AND RESULTS Twenty patients were prospectively randomized to a training group (n=10, left ventricular ejection fraction [LVEF] 24+/-4%) or a control group (n=10, LVEF 23+/-3%). At baseline and after 6 months, peak flow velocity was measured in the left femoral artery using a Doppler wire; vessel diameter was determined by quantitative angiography. Peripheral blood flow was calculated from average peak velocity (APV) and arterial cross-sectional area. After exercise training, nitroglycerin-induced endothelium-independent vasodilation remained unaltered (271% versus 281%, P=NS). Peripheral blood flow improved significantly in response to 90 microg/min acetylcholine by 203% (from 152+/-79 to 461+/-104 mL/min, P<0.05 versus control group) and the inhibiting effect of L-NMMA increased by 174% (from -46+/-25 to -126+/-19 mL/min, P<0.05 versus control group). Peak oxygen uptake increased by 26% (P<0.01 versus control group). The increase in peak oxygen uptake was correlated with the endothelium-dependent change in peripheral blood flow (r=0.64, P<0. 005). CONCLUSIONS Regular physical exercise improves both basal endothelial nitric oxide (NO) formation and agonist-mediated endothelium-dependent vasodilation of the skeletal muscle vasculature in patients with CHF. The correction of endothelium dysfunction is associated with a significant increase in exercise capacity.
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Affiliation(s)
- R Hambrecht
- University of Leipzig, Heart Center, Department of Internal Medicine/Cardiology, Leipzig, Germany.
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Abstract
Three alternative accounts of subject omission, pragmatic, processing and grammatical, are considered from the perspective of child Danish. Longitudinal data for two Danish children are analyzed for subject omission, finite and infinitival verb usage and discourse anchorage of sentence subjects (overt and missing). The data exhibit a well-defined phase of subject omission which coincides with a well-defined phase of infinitival verbal utterances. No evidence is found for input driven accounts of subject omission. Danish adults rarely omit subjects from utterance initial position. Neither is there any evidence to support the claim that omitted subjects are anchored in previous discourse. Evidence supporting a processing constraint explanation of missing subjects is equivocal. The pattern of subject omission, infinitival usage and third person pronoun and past tense usage points to a grammatical explanation of the phenomenon. However, current grammatical accounts have difficulty accommodating several aspects of the data reported. Contrary to structure building theories, the Danish children do not exhibit a phase of development where only uninflected verb forms are used. Danish children also omit subjects from finite utterances. Furthermore, the decline of subject omissions in finite utterances coincides with decline in usage of infinitival utterances. These findings challenge tense-based accounts of children's subject omission. Finally, Danish children exhibit an asymmetry in subject omission according to verb type; subjects are omitted from main verb utterances more frequently than from copula utterances. Given the language typology associated with Danish, this asymmetry is difficult to accommodate within truncation and tense or number-based accounts of subject omission. We suggest that a proper treatment of child subject omission will involve an integration of grammatical and discourse-based approaches.
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Affiliation(s)
- C Hamann
- University of Geneva, Switzerland
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Santos FX, Sanchez-Gabriel J, Mayoral E, Hamann C. Air evacuation of critically burned patients. Mil Med 1995; 160:593-6. [PMID: 8538899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
We analyze the repercussions of air evacuation on the physiopathology of the critically burned patient based on the experience on 63 patients evacuated by air. Clinical repercussions are due to accelerations, vibrations, noise, and, primarily, to altitude. Accelerations are important during take-off and landing, and vibrations may be important in helicopter evacuations in the presence of craniofacial trauma. The noise, especially in helicopters, can interfere with diagnostic and therapeutic maneuvers in-flight. The altitude modifies atmospheric pressure, partial pressure of oxygen, and water concentration in inhaled air. In the aircraft we use, atmospheric pressure is between 550 and 532 mm Hg at the normal flight altitudes. This situation determines the expansion of body gases. Hypoxia seriously worsens any respiratory insufficiency, primarily in the presence of smoke inhalation. The decrease of water concentration in the inhaled air compels the increase of fluid perfusion. Pre-flight and in-flight measures are analyzed, especially with regard to smoke inhalation, pneumothorax, and parenteral perfusion.
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Affiliation(s)
- F X Santos
- Hospital del Aire, Arturo Soria, Madrid, Spain
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Santos FX, Escudero M, Pérez L, Lozano T, Obispo JM, Hamann C, Rodríguez C. Comparison of the effects of nerve growth factor and superoxide dismutase on vascular extravasation in experimental burns. Burns 1995; 21:445-8. [PMID: 8554687 DOI: 10.1016/0305-4179(95)00009-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Superoxide dismutase (SOD), a free-radical scavenger, inhibits the increase of vascular permeability in experimental burn lesions in rats. In this study the aim was to determine whether Nerve Growth Factor (NGF), which has been implicated in the modulation of some inflammatory reactions, behaves in an analogous way. The study compares the haematocrit (Ht) and haemoglobin (Hb) variations in three groups of rats treated respectively with saline solution, SOD and NGF, immediately after causing a 25 per cent dermal burn injury. Statistical comparison (Student's t test) of the Ht and Hb variations between the Control group (Ht and Hb increase) and the NGF group (Ht and Hb decrease), shows significant differences in the intervals between 15 and 60 min (P < 0.01) and between 60 and 120 min (P < 0.05). Although SOD is able to control extravasation in the immediate postburn period (basal-15 min), NGF has a comparable effect in subsequent periods. The overall action of NGF shows that this agent is able to maintain Ht and Hb values at basal levels even after 120 min postburn. These results seem to be the first evidence of an inhibitory effect of NGF on the vascular permeability in burn lesions.
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Affiliation(s)
- F X Santos
- Experimental Surgery Unit, Hospital Universitario del Aire, Madrid, Spain
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Hamann B, Hamann C, Taylor JS. Managing latex allergies in the dental office. J Calif Dent Assoc 1995; 23:45-50. [PMID: 9051991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The consequences of latex allergy can be serious. This paper details the types of allergic reactions and management strategies for both dental workers and patients.
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Affiliation(s)
- B Hamann
- SmartPractice, Phoenix, AZ 85008-7899, USA
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Hamann C. Alternatives for health care workers with latex glove allergies. JAMA 1993; 269:2368. [PMID: 8479059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Abstract
Clinicians usually employ indirect measures of cognitive and physical function in order to assess medical decision-making capacity. We tested a reference group of well elderly (Mini-Mental State Exam [MMSE] score = 29.1 +/- 0.8, mean +/- SD), for their understanding of three increasingly complex, hypothetical treatment situations or "vignettes"--use of a hypnotic, need for thoracocentesis, and desire for CPR. From this, we have developed a more direct, Guttman-like assessment of decision-making capacity. Of 51 Veterans Affairs nursing home residents (MMSE score = 22.4 +/- 6.9), only 33.3% demonstrated intact decision-making capacity by this method, whereas 77% were felt by their primary physicians to be capable of giving consent for oral surgery; 37.3% had very impaired decision-making capacity; and 29.4% were intermediate in this ability. Judged against our more direct assessment of decision-making capacity, primary physicians' judgment of capacity for consent was 31% to 39% sensitive in identifying impaired decision-making and the MMSE was 53% to 63% sensitive. These measures were 100% and 82% to 83% specific in identifying intact decision-making capacity, respectively. We conclude that (1) more directly assessed decision-making capacity varies noticeably among elderly nursing home residents and correlates in only limited fashion with frequently used cognitive screening methods; and (2) cognitive screening tests underestimate the prevalence of impaired decision-making capacity in this population. For informed consent and advance directives, our study suggests that decision-making capacity should be directly, rather than indirectly, assessed.
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Affiliation(s)
- L J Fitten
- Department of Psychiatry, University of California, Los Angeles School of Medicine
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