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BMC Geriatrics Mar 2023Postoperative delirium (POD) is a common postoperative complication associated with multiple adverse consequences on patient outcomes and higher medical expenses.... (Meta-Analysis)
Meta-Analysis
BACKGROUND
Postoperative delirium (POD) is a common postoperative complication associated with multiple adverse consequences on patient outcomes and higher medical expenses. Preoperative anxiety has been suggested as a possible precipitating factor for the development of POD. As such, we aimed to explore the association between preoperative anxiety and POD in older surgical patients.
METHODS
Electronic databases including MEDLINE (via PubMed), EMBASE (via Embase.com), Web of Science Core Collection, Cumulative Index to Nursing and Allied Health Literature (CINAHL Complete; via EBSCOhost) and clinical trial registries were systematically searched to identify prospective studies examining preoperative anxiety as a risk factor for POD in older surgical patients. We used Joanna Briggs Institute Critical Appraisal Checklist for Cohort Studies to assess the quality of included studies. The association between preoperative anxiety and POD was summarized with odds ratios (ORs) and 95% confidence intervals (CIs) using DerSimonian-Laird random-effects meta-analysis.
RESULTS
Eleven studies were included (1691 participants; mean age ranging between 63.1-82.3 years). Five studies used a theoretical definition for preoperative anxiety, with the Anxiety subscale of Hospital Anxiety and Depression Scale (HADS-A) as the instrument being most often used. When using dichotomized measures and within the HADS-A subgroup analysis, preoperative anxiety was significantly associated with POD (OR = 2.17, 95%CI: 1.01-4.68, I = 54%, Tau = 0.4, n = 5; OR = 3.23, 95%CI: 1.70-6.13, I = 0, Tau = 0, n = 4; respectively). No association was observed when using continuous measurements (OR = 0.99, 95%CI: 0.93-1.05, I = 0, Tau = 0, n = 4), nor in the subgroup analysis of STAI-6 (six-item version of state scale of Spielberger State-Trait Anxiety Inventory, OR = 1.07, 95%CI: 0.93-1.24, I = 0, Tau = 0, n = 2). We found the overall quality of included studies to be moderate to good.
CONCLUSIONS
An unclear association between preoperative anxiety and POD in older surgical patients was found in our study. Given the ambiguity in conceptualization and measurement instruments used for preoperative anxiety, more research is warranted in which a greater emphasis should be placed on how preoperative anxiety is operationalized and measured.
Topics: Humans; Aged; Aged, 80 and over; Emergence Delirium; Delirium; Prospective Studies; Anxiety; Postoperative Complications; Risk Factors
PubMed: 36997928
DOI: 10.1186/s12877-023-03923-0 -
Journal of Thoracic Disease Mar 2019Blood flow between the aorta and atrium is a rare but complex pathological condition, also known as aorto-atrial fistula (AAF). The exact incidence of this condition is... (Review)
Review
Blood flow between the aorta and atrium is a rare but complex pathological condition, also known as aorto-atrial fistula (AAF). The exact incidence of this condition is unknown, as are the major precipitating factors and best treatment options. We carried out a systematic review of the available case report literature reporting AAF. We systematically reviewed literature on AAF formation and closure. Separate Medline (PubMed), EMBASE, and Cochrane database queries were performed. The following MESH headings were used: atrium, ventricle, fistula, cardiac, shunts, aortic, aorto-atrial tunnels and coronary cameral fistula. All papers were considered for analysis irrespective of their quality, or the journal in which they were published. Fistula formation from the ascending aorta to the atria occurred more often in the right atrium compared to the left. Endocarditis was the major cause of AAF formation, whilst congenital causes were responsible for nearly 12%. In a number of cases fistula formation occurred secondary to cardiac surgery, whilst chest traumas were a relatively rare cause of AAF. Correction via an open surgical approach occurred in 73.5% of cases, whilst percutaneous intervention was utilised in 10% of patients. In 74.3% of all studied cases the fistula repair was successful and patients survived the procedures. In 14.7% of the cases patients did not survive. Similar outcomes were observed between percutaneous and surgical interventions. Data from larger populations with AAF is lacking, meaning that specific data regarding incidence and prevalence does currently not exist.
PubMed: 31019793
DOI: 10.21037/jtd.2019.01.77 -
Journal of Affective Disorders Sep 2023Patients with Post-traumatic stress disorder (PTSD) exposed to traumatic reminders show hyperreactivity in brain areas (e.g., amygdala) belonging or related to the... (Meta-Analysis)
Meta-Analysis Review
Patients with Post-traumatic stress disorder (PTSD) exposed to traumatic reminders show hyperreactivity in brain areas (e.g., amygdala) belonging or related to the Innate Alarm System (IAS), allowing the rapid processing of salient stimuli. Evidence that IAS is activated by subliminal trauma-reminders could shed a new light on the factors precipitating and perpetuating PTSD symptomatology. Thus, we systematically reviewed studies investigating neuroimaging correlates of subliminal stimulation in PTSD. Twenty-three studies were selected from the MEDLINE and Scopus® databases for a qualitative synthesis, 5 of which allowed a further meta-analysis of fMRI data. The intensity of IAS responses to subliminal trauma-related reminders ranged from a minimum in healthy controls to a maximum in the PTSD patients with the most severe (e.g., dissociative) symptoms or the least responsiveness to treatment. Comparisons with other disorders (e.g., phobias) revealed contrasting results. Our findings demonstrate the hyperactivation of areas belonging or related to IAS in response to unconscious threats that should be integrated in diagnostic as well as in therapeutic protocols.
Topics: Humans; Stress Disorders, Post-Traumatic; Subliminal Stimulation; Brain; Amygdala; Brain Mapping; Magnetic Resonance Imaging
PubMed: 37236272
DOI: 10.1016/j.jad.2023.05.047 -
Tropical Medicine and Infectious Disease Sep 2022West Nile virus (WNV) is a mosquito-borne flavivirus that has emerged as a major cause of viral encephalitis and meningitis, rarely leading to death. Several risk... (Review)
Review
West Nile virus (WNV) is a mosquito-borne flavivirus that has emerged as a major cause of viral encephalitis and meningitis, rarely leading to death. Several risk factors have been discussed in the past concerning the severity of the disease, while few reports have focused on precipitating conditions that determine of WNV-related death. Studies on cohorts of patients suffering of West Nile disease (WND) usually encompass low numbers of deceased patients as a result of the rarity of the event. In this systematic review and critical analysis of 428 published case studies and case series, we sought to evaluate and highlight critical parameters of WND-related death. We summarized the symptoms, comorbidities, and treatment strategies related to WND in all published cases of patients that included clinical features. Symptoms such as altered mental status and renal problems presented increased incidence among deceased patients, while these patients presented increased cerebrospinal fluid (CSF) glucose. Our analysis also highlights underestimated comorbidities such as pulmonary disease to act as precipitating conditions in WND, as they were significantly increased amongst deceased patients. CSF glucose and the role of pulmonary diseases need to be revaluated either retrospectively or prospectively in WND patient cohorts, as they may be linked to increased mortality risk.
PubMed: 36136647
DOI: 10.3390/tropicalmed7090236 -
Medical Science Monitor Basic Research Mar 2017BACKGROUND This systematic review with meta-analysis aimed to determine the strength of evidence for evaluating the association of platelet cellular and functional... (Meta-Analysis)
Meta-Analysis Review
BACKGROUND This systematic review with meta-analysis aimed to determine the strength of evidence for evaluating the association of platelet cellular and functional characteristics including platelet count (PC), MPV, platelet distribution width (PDW), platelet factor 4, beta thromboglobulin (BTG), and p-selectin with the occurrence of atrial fibrillation (AF) and consequent stroke. MATERIAL AND METHODS We conducted a meta-analysis of observational studies evaluating platelet characteristics in patients with paroxysmal, persistent and permanent atrial fibrillations. A comprehensive subgroup analysis was performed to explore potential sources of heterogeneity. RESULTS Literature search of all major databases retrieved 1,676 studies. After screening, a total of 73 studies were identified. Pooled analysis showed significant differences in PC (weighted mean difference (WMD)=-26.93 and p<0.001), MPV (WMD=0.61 and p<0.001), PDW (WMD=-0.22 and p=0.002), BTG (WMD=24.69 and p<0.001), PF4 (WMD=4.59 and p<0.001), and p-selectin (WMD=4.90 and p<0.001). CONCLUSIONS Platelets play a critical and precipitating role in the occurrence of AF. Whereas distribution width of platelets as well as factors of platelet activity was significantly greater in AF patients compared to SR patients, platelet count was significantly lower in AF patients.
Topics: Atrial Fibrillation; Blood Coagulation; Blood Platelets; Humans; Platelet Activation; Platelet Count; Stroke
PubMed: 28302997
DOI: 10.12659/msmbr.902557 -
Stroke Apr 2023Remote diffusion-weighted imaging lesions (RDWILs) in the context of spontaneous intracerebral hemorrhage (ICH) are associated with an increased risk of recurrent... (Meta-Analysis)
Meta-Analysis
BACKGROUND
Remote diffusion-weighted imaging lesions (RDWILs) in the context of spontaneous intracerebral hemorrhage (ICH) are associated with an increased risk of recurrent stroke, worse functional outcome, and death. To update current knowledge on RDWILs, we conducted a systematic review and meta-analysis of the prevalence, associated factors and presumed causes of RDWILs.
METHODS
We searched Pubmed, Embase, and Cochrane up to June 2022 for studies reporting RDWILs in adults with symptomatic ICH of no-identified-cause, assessed by magnetic resonance imaging, and analyzed associations between baseline variables and RDWILs in random-effects meta-analyses.
RESULTS
Eighteen observational studies (7 prospective), reporting 5211 patients were included, of whom 1386 had ≥1 RDWIL (pooled prevalence: 23.5% [19.0-28.6]). RDWIL presence was associated with neuroimaging features of microangiopathy, atrial fibrillation (odds ratio, 3.67 [1.80-7.49]), clinical severity (mean difference in National Institutes of Health Stroke Scale score, 1.58 points [0.50-2.66]), elevated blood pressure (mean difference, 14.02 mmHg [9.44-18.60]), ICH volume (mean difference, 2.78 mL [0.97-4.60]), and subarachnoid (odds ratio, 1.80 [1.00-3.24]) or intraventricular (odds ratio, 1.53 [1.28-1.83]) hemorrhage. RDWIL presence was associated with poor 3-month functional outcome (odds ratio, 1.95 [1.48-2.57]).
CONCLUSIONS
RDWILs are detected in approximately 1-in-4 patients with acute ICH. Our results suggest that most RDWILs result from disruption of cerebral small vessel disease by ICH-related precipitating factors such as elevated intracranial pressure and cerebral autoregulation impairment. Their presence is associated with worse initial presentation and outcome. However, given the mostly cross-sectional designs and heterogeneity in study quality, further studies are needed to investigate whether specific ICH treatment strategies may reduce the incidence of RDWILs and in turn improve outcome and reduce stroke recurrence.
Topics: Adult; Humans; Prospective Studies; Cross-Sectional Studies; Cerebral Hemorrhage; Diffusion Magnetic Resonance Imaging; Stroke
PubMed: 36866676
DOI: 10.1161/STROKEAHA.122.040689 -
Current Pain and Headache Reports Oct 2014Migraine attacks rarely occur spontaneously in the absence of any possible precipitating factors. A systematic literature review of 25 publications revealed a consistent... (Review)
Review
Migraine attacks rarely occur spontaneously in the absence of any possible precipitating factors. A systematic literature review of 25 publications revealed a consistent set of stimuli that have been identified as factors associated with the onset of a migraine attack. The weighted average of the "Top 10" trigger factors was determined. Stress was cited as the overall most common migraine precipitating factor, which was identified as a trigger factor by 58 % of 7187 migraineurs. The incidence of migraine precipitating factors, across various populations globally, demonstrates the clinical consistency of migraine in the human population. Future efforts aimed at mitigating these precipitating factors have the potential to significantly improve migraine management. However, the current healthcare system is unlikely to be able to develop detailed personalized management plans. There is a need to develop a novel approach to the identification and management of multiple trigger factors in individual migraineurs.
Topics: Humans; Incidence; Migraine Disorders; Precipitating Factors
PubMed: 25160711
DOI: 10.1007/s11916-014-0454-z -
Journal of the American Geriatrics... Apr 2017Treating the precipitating factors of delirium is the mainstay of the prevention and treatment of delirium. We aim to investigate the role of anemia and blood... (Review)
Review
OBJECTIVES
Treating the precipitating factors of delirium is the mainstay of the prevention and treatment of delirium. We aim to investigate the role of anemia and blood transfusion within the multicomponent prevention and treatment strategy of delirium.
DESIGN
Systematic review.
SETTING
We included cohort studies or Randomized Controlled Trials (RCTs) that considered blood transfusion as treatment for delirium or risk factor, and had delirium as outcome.
PARTICIPANTS
Hospitalized patients above 55 years old.
MEASUREMENTS
We searched MEDLINE from 1946 through November 2014. Quality assessment and data extraction were performed systematically.
RESULTS
We included 23 studies (n = 29,471). The majority of the studies (n = 22) had a limited quality and for one study quality was uncertain. Two studies evaluated the association between transfusion strategy and postoperative delirium and found no association. Twenty-one studies investigated blood transfusion as a risk factor for delirium. In four of the 21 studies it could be assumed that delirium occurred after transfusion. One of these studies stated that transfusion was a significant risk factor for subsequent delirium (odds ratio (OR) = 3.68, 95% confidence interval (CI) = 1.32-10.94). The other three studies found no association between transfusion and delirium. In the remaining 17 studies, it was not clear whether delirium occurred before or after transfusion, so no conclusion could be drawn on the role of transfusion in delirium development.
CONCLUSION
The majority of the included studies was not suited to answer the research question properly as the time course of the beginning of delirium as to transfusion was lacking. Our review shows that there is no good quality evidence available for blood transfusion to be a risk factor for delirium or to be a preventive or treatment option.
Topics: Aged; Anemia; Blood Transfusion; Delirium; Hospitalization; Humans; Middle Aged; Risk Factors
PubMed: 28205243
DOI: 10.1111/jgs.14564 -
Psycho-oncology Aug 2017The purpose of this systematic review was to describe the occurrence of sleep disruptions in pediatric cancer patients and to identify and discuss the factors related to... (Review)
Review
OBJECTIVE
The purpose of this systematic review was to describe the occurrence of sleep disruptions in pediatric cancer patients and to identify and discuss the factors related to the hospital sleep environment that may be associated with disturbed sleep.
METHODS
A total of 108 articles were located in five databases (PubMed, PsychINFO, Medline, CancerLit, and Google Scholar), and seven met our inclusion criteria and formed the basis of this review.
RESULTS
Participants ranged from 1 to 18 years (n = 147). Data from objective and subjective assessments of sleep showed that child sleep was disrupted in the hospital when compared to previously established age-related norms. Noise, light levels, and staff room interruptions were associated with decreased total sleep minutes and increased nighttime awakenings. Methodological limitations of the current research as well as potential directions for future research are discussed.
CONCLUSIONS
Investigations into the sources of increased sleep difficulties can be used to inform hospital procedures to create a more supportive sleep environment and more effective screening tools for patients who may be at greater risk for sleep difficulties. This may help to minimize the role that hospitalization plays in precipitating and perpetuating chronic sleep disturbances in pediatric cancer patients. Copyright © 2016 John Wiley & Sons, Ltd.
Topics: Adolescent; Child; Child, Hospitalized; Child, Preschool; Female; Hospital Design and Construction; Humans; Infant; Male; Neoplasms; Patients; Research; Sleep Wake Disorders
PubMed: 27147507
DOI: 10.1002/pon.4149 -
Current Psychiatry Reports Aug 2017We aimed to systematically review recent publications (01/2014-03/2017) with longitudinal designs allowing for the assessment of the prospective risk of insomnia on new... (Review)
Review
PURPOSE
We aimed to systematically review recent publications (01/2014-03/2017) with longitudinal designs allowing for the assessment of the prospective risk of insomnia on new onset mental illness in key conditions: anxiety, depression, bipolar disorder, posttraumatic stress disorder, substance use disorders, and suicide.
RECENT FINDINGS
A literature yielded 1859 unique articles meeting search criteria were identified; 16 articles met all selection criteria and reviewed with some studies reporting on more than one mental health outcome. Overall, the review supports the hypothesis that insomnia is a predictor of subsequent mental illness. The evidence is strongest for an insomnia-depression relationship. The new studies identified and reviewed add to a modest number of publications supporting a prospective role of insomnia in new onset mental illness in three areas: anxiety disorders, bipolar disorder, and suicide. The few selected new studies focused on SUD were mixed, and no studies focused on PTSD were identified that met the selection criteria. Treatment of insomnia may also be a preventive mental health strategy.
Topics: Anxiety Disorders; Bipolar Disorder; Depressive Disorder; Humans; Longitudinal Studies; Mental Disorders; Prospective Studies; Risk Factors; Sleep Initiation and Maintenance Disorders; Stress Disorders, Post-Traumatic; Substance-Related Disorders; Suicide
PubMed: 28616860
DOI: 10.1007/s11920-017-0802-x