Konstantinos Kontoangelos

Prof. Dr. Konstantinos Kontoangelos


Research Focus & Metrics

Academic Career Length

8Years (2019-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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15 June 2020 in Psychiatry Investigation
Verified
Journal Article
Open access
PDF file
KKKonstantinos Kontoangelos
Konstantinos Kontoangelos
MEMarina Economou
Marina Economou
CPCharalambos Papageorgiou
Charalambos Papageorgiou
Objective As the coronavirus (COVID-19) pandemic sweeps across the world, it is causing widespread concern, fear and stress, all of which are natural and normal reactions to the changing and uncertain situation that everyone finds themselves in.Methods In this general review, we examined the literature about the psychological effects of COVID-19 pandemia. In total 65 papers were reviewed using the Medline computer database. Only publications in English were selected.Results Children are likely to be experiencing worry, anxiety and fear and older people are also those with underlying health conditions, having been identified as more vulnerable to COVID-19, can be extremely frightening and very fear-inducing. China and several other countries took strict isolation measures. Medical staff and affiliated healthcare workers (staff) are under both physical and psychological pressure.Conclusion The COVID-19 pandemic is exceptional. Its effect will likely be imprinted on each individual involved. Extensive stressors will emerge or become worsened. Many medical staff workers will be harmfully psychologically affected.

21 October 2022 in Clinical Practice & Epidemiology in Mental Health
Verified
Journal Article
Open access
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KKKonstantinos Kontoangelos
Konstantinos Kontoangelos
ARAthanasios Raptis
Athanasios Raptis
VLVaia Lambadiari
Vaia Lambadiari
MEMarina Economou
Marina Economou
STSofia Tsiori
Sofia Tsiori
CPCharalabos Papageorgiou
Charalabos Papageorgiou
Background: Diabetes burnout is a condition when a patient with diabetes feels tired from his/her disease and neglects it for a certain period or continuously. Objective: Diabetes burnout is frequent, and there is extended literature about psychosocial stress and its negative effects on health. Methods: A search for relevant studies was conducted using PubMed, Google Scholar and ResearchGate. A systematic review was conducted on the relevant articles after critical appraisal. Only publications in English were selected. The objective of this study was to evaluate the association between burnout syndrome and diabetes mellitus. Results: This article mainly focused on studies that evaluated the presence of burnout and diabetes mellitus effects. Diabetes can influence psychological health equally with somatic strength. Relatives can also express depression, guilt, fright, worry, rage, and burnout. Psychosocial job stress and extended working hours are linked with a higher possibility of myocardial infarction, diabetes mellitus, and hypertension. Conclusion: Diabetes burnout is a combination of emotions and practices, ranging from tiredness to indifference, linked with a distressing sense of hopelessness. Revealing this health condition is necessary so that preventive measures can be taken.

21 February 2022 in Brain Sciences
Verified
Journal Article
Open access
PDF file
Anastasios GiannopoulosAnastasios Giannopoulos
Anastasios Giannopoulos
IZIoanna Zioga
Ioanna Zioga
KKKonstantinos Kontoangelos
Konstantinos Kontoangelos
PPPanos Papageorgiou
Panos Papageorgiou
FKFotini Kapsali
Fotini Kapsali
CPCharalabos Papageorgiou
Charalabos Papageorgiou
Background: Body dysmorphic disorder (BDD) is a psychiatric disorder characterized by excessive preoccupation with imagined defects in appearance. Optical illusions induce illusory effects that distort the presented stimulus, thus leading to ambiguous percepts. Using electroencephalography (EEG), we investigated whether BDD is related to differentiated perception during illusory percepts. Methods: A total of 18 BDD patients and 18 controls were presented with 39 optical illusions together with a statement testing whether or not they perceived the illusion. After a delay period, they were prompted to answer whether the statement was right/wrong and their degree of confidence in their answer. We investigated differences of BDD patients on task performance and self-reported confidence and analyzed the brain oscillations during decision-making using nonparametric cluster statistics. Results: Behaviorally, the BDD group exhibited reduced confidence when responding incorrectly, potentially attributed to higher levels of doubt. Electrophysiologically, the BDD group showed significantly reduced alpha power at the fronto-central and parietal scalp areas, suggesting impaired allocation of attention. Interestingly, the lower the alpha power of the identified cluster, the higher the BDD severity, as assessed by BDD psychometrics. Conclusions: Results evidenced that alpha power during illusory processing might serve as a quantitative EEG biomarker of BDD, potentially associated with reduced inhibition of task-irrelevant areas.

11 October 2023 in JMIR Formative Research
Verified
Journal Article
Open access
CTCharalampos Tsirmpas
Charalampos Tsirmpas
MNMaria Nikolakopoulou
Maria Nikolakopoulou
SKSharon Kaplow
Sharon Kaplow
DADimitrios Andrikopoulos
Dimitrios Andrikopoulos
PFPanagiotis Fatouros
Panagiotis Fatouros
CPCharalabos Papageorgiou
Charalabos Papageorgiou
Background: A total of 1 in 2 adults with attention-deficit/hyperactivity disorder (ADHD) struggles with major depressive or anxiety disorders. The co-occurrence of these disorders adds to the complexity of finding utility in as well as adherence to a treatment option. Digital therapeutic solutions may present a promising alternative treatment option that could mitigate these challenges and alleviate symptoms. Objective: This study aims to investigate (1) the feasibility and acceptance of a digital mental health intervention, (2) participants’ engagement and retention levels, and (3) the potential efficacy with respect to anxiety and depression symptoms in a population with ADHD. Our main hypothesis was that a digital, data-driven, and personalized intervention for adults with coexisting ADHD and depressive or anxiety symptoms would show high engagement and adherence, which would be accompanied by a decrease in depressive and anxiety symptoms along with an increase in quality of life and life satisfaction levels. Methods: This real-world data, single-arm study included 30 adult participants with ADHD symptomatology and coexisting depressive or anxiety symptoms who joined a 16-week digital, data-driven mental health support program. This intervention is based on a combination of evidence-based approaches such as cognitive behavioral therapy, mindfulness, and positive psychology techniques. The targeted symptomatology was evaluated using the Patient Health Questionnaire–9, Generalized Anxiety Disorder–7, and Barkley Adult ADHD Rating Scale–IV. Quality of life aspects were evaluated using the Satisfaction With Life Scale and the Life Satisfaction Questionnaire, and user feedback surveys were used to assess user experience and acceptability. Results: The study retention rate was 97% (29/30), and high engagement levels were observed, as depicted by the 69 minutes spent on the app per week, 5 emotion logs per week, and 11.5 mental health actions per week. An average decrease of 46.2% (P<.001; r=0.89) in depressive symptoms and 46.4% (P<.001; r=0.86) in anxiety symptoms was observed, with clinically significant improvement for more than half (17/30, 57% and 18/30, 60%, respectively) of the participants. This was followed by an average increase of 23% (P<.001; r=0.78) and 20% (P=.003; r=0.8) in Satisfaction With Life Scale and Life Satisfaction Questionnaire scores, respectively. The overall participant satisfaction level was 4.3 out of 5. Conclusions: The findings support the feasibility, acceptability, and value of the examined digital program for adults with ADHD symptomatology to address the coexisting depressive or anxiety symptoms. However, controlled trials with larger sample sizes and more diverse participant profiles are required to provide further evidence of clinical efficacy.

SMStamatis Mourtakos
Stamatis Mourtakos
GVGeorgia Vassiliou
Georgia Vassiliou
KKKonstantinos Kontoangelos
Konstantinos Kontoangelos
Anastassios PhilippouAnastassios Philippou
Anastassios Philippou
TETzavellas Odysseas Elias
Tzavellas Odysseas Elias
CPChristos Papageorgiou
Christos Papageorgiou
Background: Recent research indicates that both endocannabinoids (eCB) and heart rate variability (HRV) are associated with stress-induced experiences. However, these underlying mechanisms are not elucidated. The present study aims to investigate whether exposure to acute and chronic stress conditions can give rise to measurable changes, both to the peripheral eCB ligands and HRV. Methods: Thirteen candidates under intense preparation for their enlistment in the Hellenic Navy SEALs (HNS) participated in the study. All subjects underwent mental state examination, while HRV variables in time and frequency domain recordings were acquired. Furthermore, at baseline and 30 days after prolonged and intensive physical exercise, hair was collected to measure eCB ligands, such as anandamide (AEA), 2-arachidonoylglycerol (2-AG), and the N-acyl ethanolamine (NAE) molecules: palmitoylethanolamide (PEA) and oleoylethanolamide (OEA). Results: Comparing basal hair concentrations of eCB ligands before and after intense physical exercise, we found that AEA, PEA, and OEA were notably increased, whereas no differences were observed regarding the ligand 2-AG. Furthermore, there were observed associations between the concentrations of peripheral eCB ligands, both at baseline and after the prolonged physical exercise and the time and frequency domains of HRV. Conclusions: These findings suggest that endocannabinoid–HRV interrelations might share a short-term, and long-term adaptability of the changes in self-regulation associated with stress. Further studies will be required to determine the validity of peripheral eCB signaling and HRV as a biomarker for different aspects of the stress response.

24 May 2023 in Behavioral Medicine
Verified
Journal Article
Closed access
KKKonstantinos Kontoangelos
Konstantinos Kontoangelos
DSDimitris Soulis
Dimitris Soulis
SSStergios Soulaidopoulos
Stergios Soulaidopoulos
CAChristos-Konstantinos Antoniou
Christos-Konstantinos Antoniou
STSofia Tsiori
Sofia Tsiori
VKVasiliki Katsi
Vasiliki Katsi
Cardiovascular diseases (CVD) is associated with deteriorating of quality of life (QOL) and exercise capacity (EC) but less is known on how EC interplays with QOL. The present study explores the relationship between quality of life and cardiovascular risk factors in people who present in cardiology clinics. A total of 153 adult presentations completed the SF-36 Health Survey and provided data for hypertension, diabetes mellitus, smoking, obesity, hyperlipidemia and history of coronary heart disease. Physical capacity was assessed by treadmill test. were correlated with the scores of the psychometric questionnaires. Participants with longer duration on treadmill exercise score higher on the scale of physical functioning. The study found that treadmill exercise intensity and duration were associated with improved scores in dimensions of the physical component summary and the physical functioning of SF-36, respectively. The presence of cardiovascular risk factors is related to a decreased quality of life. Patients with cardiovascular diseases should undergo particularly detailed analysis of the quality of life along with specific mental factors such as depersonalization and posttraumatic stress disorder.