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- Lindström, Leif, et al.
(författare)
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Maintenance therapy with second generation antipsychotics for bipolar disorder - A systematic review and meta-analysis
- 2017
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Ingår i: Journal of Affective Disorders. - : ELSEVIER SCIENCE BV. - 0165-0327 .- 1573-2517. ; 213, s. 138-150
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Forskningsöversikt (refereegranskat)abstract
- Background: Second generations antipsychotics (SGA) are frequently used for maintenance treatment in bipolar disorder. We systematically reviewed the efficacy and long-term effects of treatment with SGA, regardless of treatment strategy (SGA administered either as monotherapy or as adjunctive therapy), in comparison to placebo, lithium or valproate. Primary outcomes were relapses (mood episode recurrence) and discontinuation. Method: Clinical studies were identified through database searching in PubMed, Embase, PsychInfo and Cochrane Library and critically appraised based on the Cochrane Handbook. Full data extraction of raw data was performed and analyzed with meta-analyses, and level of evidence graded using GRADE. Only randomized controlled studies (RCT) and observational studies were included, with a minimum follow-up of 6 months. Comparators used were restricted to placebo, lithium, valproate or other anti-epileptic drugs. Results: We identified 15 RCTs on SGA in bipolar disorder with follow-up-time of 6 months up to 2 years, and one observational study reporting long-term effects of up to 4 years. A total of 6142 patients were included in the randomized trials. No long-term RCTs beyond 2 years follow-up was identified. All RCTs except for one included patients with bipolar disorder type I only. All RCTs except for two included patients pre-stabilized on the drug under investigation prior to randomization (enrichment design). For SGA as adjunctive therapy to lithium or valproate, meta-analyses showed that treatment with either aripiprazole (RR: 0.65, 95% CI 0.50-0.85), quetiapine (RR: 0.38, 95% CI 0.32-0.46) or ziprasidone (RR: 0.62, 95% CI 0.40-0.96) reduced the overall risk of relapses in patients that had responded during the stabilization phase. Adjunctive therapy with quetiapine was the only drug that reduced both manic and depressive episodes. For SGA as monotherapy, only quetiapine was shown to be better than lithium/ valproate for both manic and depressive relapses, but only for patients stabilized on quetiapine during the acute phase. As monotherapy, olanzapine, quetiapine and risperidone were shown to be superior to placebo in reducing the overall risk of relapses. Limitations: There were considerable limitations to the evidence base of maintenance treatment with SGA in bipolar disorder. Most studies used stabilized patients, i.e. enrichment design (selection bias), had considerable dropout levels (attrition bias), and variable degree of reporting bias. No long-term RCT data on efficacy is available beyond 2 years, and almost all studies are on bipolar disorder type I patients only. Despite these limitations, we elucidate quantitative findings from meta-analyses conducted on the randomized trials published on the topic.
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| 2. |
- Abdelraheem, Mohamed Ahmed, et al.
(författare)
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Executing Boolean queries on an encrypted Bitmap index
- 2016
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Ingår i: CCSW 2016 - Proceedings of the 2016 ACM Cloud Computing Security Workshop, co-located with CCS 2016. - New York, NY, USA : Association for Computing Machinery (ACM). - 9781450345729 ; , s. 11-22
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Konferensbidrag (refereegranskat)abstract
- We propose a simple and efficient searchable symmetric encryption scheme based on a Bitmap index that evaluates Boolean queries. Our scheme provides a practical solution in settings where communications and computations are very constrained as it offers a suitable trade-off between privacy and performance.
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| 5. |
- Alenius, Malin, et al.
(författare)
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Gene polymorphism influencing treatment response in psychotic patients in a naturalistic setting
- 2008
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Ingår i: Journal of Psychiatric Research. - : Elsevier BV. - 0022-3956 .- 1879-1379. ; 42:11, s. 884-893
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Tidskriftsartikel (refereegranskat)abstract
- RATIONALE: Many patients with psychotic symptoms respond poorly to treatment. Factors possibly affecting treatment response include the presence of polymorphisms in genes coding for various receptor populations, drug-metabolizing enzymes or transport proteins. OBJECTIVES: To investigate whether genetic polymorphisms could be indicators of treatment response to antipsychotic drugs. The genes of interest were the dopamine D2 receptor gene (DRD2), the serotonin 2A and 2C receptor genes (HTR2A and HTR2C), the P-glycoprotein gene (ABCB1 or MDR1) and the drug-metabolizing cytochrome P450 2D6 gene (CYP2D6). MATERIAL AND METHODS: Data for this naturalistic, cross-sectional study of patients requiring antipsychotic drugs and attending the Psychosis Outpatient Care clinic in Jönköping, Sweden were obtained from patient interviews, blood samples and information from patient files. Blood samples were genotyped for DRD2 Taq1 A, Ins/Del and Ser311Cys, HTR2A T102C, HTR2C Cys23Ser, ABCB1 1236C>T, 2677G>T/A, 3435C>T and genetic variants of CYP2D6. The patients (n=116) were grouped according to the CANSEPT method regarding significant social and clinical needs and significant side effects. RESULTS: Patients on olanzapine homozygous for ABCB1 3435T, had more significant social and clinical needs than others. Patients with one or two DRD2 Taq1 A1 alleles had a greater risk of significant side effects, particularly if they were male, Caucasian, had a schizophrenic or delusional disorder or were taking strong dopamine D2-receptor antagonistic drugs. CONCLUSION: If these results are confirmed, patients carrying the DRD2 Taq1 A1 allele would benefit from using drugs without strong dopamine D2 receptor antagonistic properties.
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| 6. |
- Alenius, Malin, et al.
(författare)
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Knowledge and insight in relation to functional remission in patients with long-term psychotic disorders
- 2010
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Ingår i: Social Psychiatry and Psychiatric Epidemiology. - : Springer Science and Business Media LLC. - 0933-7954 .- 1433-9285. ; 45:5, s. 523-529
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Patients with psychotic symptoms often respond poorly to treatment. Outcomes can be affected by biological, physiological and psychological factors according to the vulnerability-stress model. The patient's coping strategies and beliefs have been correlated with outcomes. OBJECTIVES: To investigate the knowledge and insight in relation to treatment response. METHODS: A naturalistic study was performed using patient interviews and information gathered from patient drug charts. Apart from the rating scales used for classification of treatment response (CANSEPT method), the SPKS knowledge of illness and drugs rating scale was utilized. RESULTS: In the group of patients in functional remission (FR; n = 38), 37% had insight into their illness as compared to 10% among those not in functional remission (non-FR; n = 78; P < 0.01). As much as 23% of the non-FR group had no strategy for responding to warning signs versus 8% in the FR group (P < 0.05). CONCLUSIONS: Better treatment outcomes appear to be associated with better insight into illness, higher knowledge of warning signs and better coping strategies.
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| 7. |
- Alenius, Malin, 1974-
(författare)
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Treatment Response in Psychotic Patients in a Naturalistic Setting : Classification, Genes, Drugs, Insight and Social Networks
- 2009
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Many patients with psychotic symptoms respond poorly to treatment. Various approaches have been made to classify these patients according to treatment response. However, existing classifications have been criticized for various reasons and a new classification system is needed. Further, no satisfactory explanation of the poor treatment response has been apparent. The general aim of this thesis was therefore to develop and validate a new classification method of functional remission in a naturalistic population of patients with psychosis and to utilize this classification to investigate the population from genetic, drug treatment, insight and social network points of view. Data for this cross-sectional study of patients (n=123) attending the Psychosis Outpatient Care clinic in the county of Jönköping, Sweden, were obtained from patient interviews, blood samples and information from patient files. The new classification method CANSEPT, which combines the CAN rating scale (CAN), the UKU side effect rating scale (SE) and the patient’s previous treatment history (PT), showed validity in discriminating the patients and was accepted well by the patients. CANSEPT was used to group the patients in the other studies in this thesis. The results indicated that the gene polymorphism ABCB1 3435T, was related to worse significant social and clinical needs for patients on olanzapine, while the polymorphism DRD2 Taq1 A1 was related to a greater risk of significant side effects; especially if male, or taking strong dopamine D2-receptor antagonistic drugs. Drug treatment factors were also related to treatment response; longer duration of untreated prodromal and early psychosis was seen for patients with current significant social and clinical needs and non-adherence to treatment was associated with worse significant side effects. Worse treatment outcomes also appeared to be associated with smaller social network groups, worse insight into illness, poorer knowledge of warning signs and worse coping strategies. In summary, CANSEPT was shown to be a useful valid, multidimensional tool for classification of treatment response. Gene polymorphisms, duration of untreated illness, non-adherence to treatment, social networks and knowledge should be taken into consideration when investigating inadequate treatment response.
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| 8. |
- Alenius, Malin, et al.
(författare)
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Treatmentresponse in psychotic patients classified according to social and clinical needs, drug side effects, and previous treatment; a method to identify functional remission
- 2009
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Ingår i: Comprehensive Psychiatry. - : Elsevier BV. - 0010-440X .- 1532-8384. ; 50:5, s. 453-462
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Various approaches have been made over the years to classify psychotic patients according to inadequate treatment response, using terms such as treatment resistant or treatment refractory. Existing classifications have been criticized for overestimating positive symptoms; underestimating residual symptoms, negative symptoms, and side effects; or being to open for individual interpretation. The aim of this study was to present and evaluate a new method of classification according to treatment response and, thus, to identify patients in functional remission. METHOD: A naturalistic, cross-sectional study was performed using patient interviews and information from patient files. The new classification method CANSEPT, which combines the Camberwell Assessment of Need rating scale, the Udvalg for Kliniske Undersøgelser side effect rating scale (SE), and the patient's previous treatment history (PT), was used to group the patients according to treatment response. CANSEPT was evaluated by comparison of expected and observed results. RESULTS: In the patient population (n = 123), the patients in functional remission, as defined by CANSEPT, had higher quality of life, fewer hospitalizations, fewer psychotic symptoms, and higher rate of workers than those with the worst treatment outcome. CONCLUSION: In the evaluation, CANSEPT showed validity in discriminating the patients of interest and was well tolerated by the patients. CANSEPT could secure inclusion of correct patients in the clinic or in research.
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| 9. |
- Arvidsson, Eva, et al.
(författare)
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Primary care patients' attitudes to priority setting in Sweden
- 2009
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Ingår i: Scandinavian Journal of Primary Health Care. - : Informa UK Limited. - 0281-3432 .- 1502-7724. ; 27:2, s. 123-128
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Tidskriftsartikel (refereegranskat)abstract
- Objective. To analyse attitudes to priority setting among patients in Swedish primary healthcare. Design. A questionnaire was given to patients comprising statements on attitudes towards prioritizing, on the role of politicians and healthcare staff in prioritizing, and on patient satisfaction with the outcome of their contact with primary healthcare (PHC). Settings. Four healthcare centres in Sweden, chosen through purposive sampling. Participants. All the patients in contact with the health centres during a two-week period in 2004 (2517 questionnaires, 72% returned). Main outcomes. Patient attitudes to priority setting and satisfaction with the outcome of their contact. Results. More than 75% of the patients agreed with statements like Public health services should always provide the best possible care, irrespective of cost. Almost three-quarters of the patients wanted healthcare staff rather than politicians to make decisions on priority setting. Younger patients and males were more positive towards priority setting and they also had a more positive view of the role of politicians. Less than 10% of the patients experienced some kind of economic rationing but the majority of these patients were satisfied with their contact with primary care. Conclusions. Primary care patient opinions concerning priority setting are a challenge for both politicians and GPs. The fact that males and younger patients are less negative to prioritizing may pave the way for a future dialogue between politicians and the general public.
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| 10. |
- Arvidsson, Eva, 1959-, et al.
(författare)
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Så resonerar läkare och sjuksköterskor vid prioriteringar av patienter i primärvård
- 2007
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Studier av prioriteringar i primärvården är särskilt intressanta eftersom det är där de allra flesta av oss kommer i kontakt med hälso- och sjukvården. Det är också i primärvården prioriteringar och olika former av ransonering på grund av begränsade resurser är vanliga. De allra flesta av oss förstår och accepterar att vi inte omedelbart kan få träffa en läkare om det inte rör sig om akuta och allvarliga sjukdomstillstånd. Vi finner många gånger ett råd om egenvård som en tillfredställande lösning för tillfället. Hur olika prioriteringar görs ”bakom kulisserna” är dock många gånger oklart för oss. Vi kan ibland t.ex. undra varför vi får betala för vissa vårdtjänster medan andra är gratis. Osäkerhet om på vilka grunder prioriteringar sker gäller inte bara för patienter utan även sjukvårdspersonal. Erfarenheter från flera olika håll i Sverige pekar på att de etiska riktlinjer som utgör kärnan i riksdagens prioriteringsprinciper är svåra att använda i praktiken. Det är därför angeläget att få mer kunskap om hur prioriteringsprinciper och begrepp uppfattas av sjukvårdspersonalen för att utveckla arbetsformer som är begripliga och förenliga med rådande rutiner.Distriktsläkare, mottagningssköterskor och distriktssköterskor vid fyra vårdcentraler som tidigare deltagit i en prioriteringsstudie har inbjudits att diskutera prioriteringar utifrån ett antal frågeställningar. Resultaten från dessa diskussioner visar bland att olika begrepp tolkas på många olika sätt. En framgångsrik implementering av den etiska plattformen kräver antagligen betydligt mer av öppna diskussioner om prioriteringar och principer i det dagliga vårdarbetet.Två allmänläkare Eva Arvidsson från Kalmar och Malin André från Falun har bidragit med den största insatsen i projektet som för övrigt inbegriper Lars Borgquist från Avdelningen för allmänmedicin vid Linköpings universitet och Kjell Lindström från Primärvårdens utvecklingsenhet i Jönköping. Studien har finansierats av Forskningsrådet för sydöstra sjukvårdsregionen (FORSS).Jag vill på projektgruppens vägnar tacka alla medverkande från vårdcentralerna Lindsdal och Borgholm i Kalmar läns landsting, Öxnehaga i Jönköpings läns landsting och Ryds vårdcentral i Landstinget i Östergötland.Linköping 2007-07-24Per Carlsson
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