Konstantinos Manganas

Dr. Konstantinos Manganas

orcid

Research Focus & Metrics

Academic Career Length

5Years (2022-Present)

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

Representative Publications

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16 March 2025 in British Journal of Haematology
Verified
Journal Article
Closed access
SDSophia Delicou
Sophia Delicou
KMKonstantinos Manganas
Konstantinos Manganas
Michael D. DiamantidisMichael D. Diamantidis
Michael D. Diamantidis
TVTheodora Maria Venou
Theodora Maria Venou
PDPolyxeni Delaporta
Polyxeni Delaporta
EVEfthymia Vlachaki
Efthymia Vlachaki
1

12 July 2023 in British Journal of Haematology
Verified
Journal Article
Closed access
KMKonstantinos Manganas
Konstantinos Manganas
SDSophia Delicou
Sophia Delicou
AXAikaterini Xydaki
Aikaterini Xydaki
AKAlexandra Kourakli
Alexandra Kourakli
LELoukia Evliati
Loukia Evliati
JKJohn Koskinas
John Koskinas

10 April 2024 in Thalassemia Reports
Verified
Journal Article
Open access
PDF file
KMKonstantinos Manganas
Konstantinos Manganas
AXAikaterini Xydaki
Aikaterini Xydaki
AKAngeliki Kotsiafti
Angeliki Kotsiafti
OLYMPIA PAPAKONSTANTINOUOLYMPIA PAPAKONSTANTINOU
OLYMPIA PAPAKONSTANTINOU
SDSophia Delicou
Sophia Delicou
Extramedullary hematopoiesis (EMH) serves as a compensatory mechanism in chronic hemolytic anemias, such as thalassemia, and can result in spinal cord compression. This case report highlights a 36-year-old woman with transfusion-dependent β-thalassemia (TDT) who presented with lower extremity motor deficiency, pelvic paresthesia, and bladder dysfunction. The patient had a history of lower back pain, bilateral lower limb weakness, and demonstrated poor compliance with iron chelation therapy. MRI findings indicated spinal cord compression attributable to extramedullary hematopoiesis. Due to the infeasibility of surgical intervention, the patient underwent hypertransfusion and iron chelation therapy. While neurological symptoms improved, urinary retention persisted. The patient continues to receive iron chelation treatment and undergo transfusions. Managing extramedullary hematopoiesis in thalassemia necessitates an individualized treatment approach.

6 June 2022 in Thalassemia Reports
Verified
Journal Article
Open access
PDF file
SDSophia Delicou
Sophia Delicou
AXAikaterini Xydaki
Aikaterini Xydaki
KMKonstantinos Manganas
Konstantinos Manganas
EKEMMANOUIL SPYRIDON KOULLIAS
EMMANOUIL SPYRIDON KOULLIAS
LELoukia Evliati
Loukia Evliati
TATheodoros Aforozis
Theodoros Aforozis
During a pandemic, people are fearful of becoming infected with the virus, which causes anxiety, loss of purpose, and depression. This study aimed to evaluate the social and psychological impact, as well as the impact on homecare, of patients with hemoglobinopathies during the pandemic. Material and Methods: In total, 130 patients from four Thalassemia and Sickle Cell Disease Units of the National Health System of Greece Hospitals were examined via an anonymous questionnaire developed and distributed through stratified sampling. Results: Transfusion-dependent thalassemia, transfused sickle cell disease, and other hemoglobinopathies were represented by 130 patients. During the pandemic, the main concern of patients was the affordability of blood for transfusion. During the lockdown, patients’ moods varied, and their daily lives were disrupted by a lack of access to basic goods and communication with friends and family. Their eating habits, access to exercise, and, to a lesser extent, their financial situation have all been affected in their daily lives. It is crucial to highlight that while access to health services did not suffer in terms of medication and regular visits for their actual disease, it did suffer in terms of the systematic monitoring of complications.
1

4 March 2022 in Hemoglobin
Verified
Journal Article
Closed access
KMKonstantinos Manganas
Konstantinos Manganas
SDSophia Delicou
Sophia Delicou
AXAikaterini Xydaki
Aikaterini Xydaki
John KoskinasJohn Koskinas
John Koskinas
Red blood cell (RBC) transfusions have been established as one of the primary therapies in treating sickle cell anemia. However, they are not free of side effects, with overloading the body with iron being one of the most important. Iron chelation therapy greatly reduces the iron load of the body. In addition, hydroxyurea (HU), an oral chemotherapeutic drug also has a significant role in the treatment of the disease with beneficial effects on many of the clinical problems that arise, mainly in reducing painful crises. The aim of this study was to investigate the effect of synergistic transfusion therapy and HU on the response to deferasirox (DFX) chelation therapy. Eighteen patients with sickle cell disease were divided into two groups based on their treatment, either with simple transfusions and DFX or with a combination of transfusion therapy, DFX and HU, and were evaluated with magnetic resonance imaging (MRI) for liver iron concentration (LIC) and biochemistry. All patients completed the study. The results of the study showed improvement in serum ferritin (FER) levels and LIC after 12 months of therapy in both groups, especially in the group receiving the combination therapy with HU. In addition, there was a noteworthy improvement in serum glutamic-oxaloacetic transaminase (SGOT), serum glutamic pyruvic transaminase (SGPT) and lactate dehydrogenase (LDH) levels with serum creatinine (Cr) levels remaining stable during the study in both groups. Hydroxyurea, when combined with iron chelators such as DFX, provides an additional benefit of iron chelation in patients receiving chronic transfusion therapy.

Verified
Journal Article
Open access
PDF file
KPKlairi Papachristou
Klairi Papachristou
MAMaria Angelara
Maria Angelara
KMKonstantinos Manganas
Konstantinos Manganas
Theodoros AndroutsakosTheodoros Androutsakos
Theodoros Androutsakos
Primary biliary cholangitis (PBC) is a chronic, cholestatic disease, with a female predominance and a female-to-male ratio of approximately 10:1, that typically follows a slowly progressive, decades-long disease course. The disease is usually asymptomatic at the time of diagnosis and it is not uncommon for a patient to present with cirrhosis. Patients with PBC may also present with extrahepatic manifestations, including pruritus, chronic fatigue, and osteoporosis, while co-existence of other autoimmune diseases, such as autoimmune hepatitis, Hashimoto’s disease, Sjogren’s syndrome, or systemic sclerosis is not uncommon. The exact pathogenesis of PBC remains elusive with a variety of different factors, including genetic, epigenetic, and environmental ones, alongside immune dysregulation leading to a dysfunction of biliary “bicarbonate umbrella”, a protective mechanism by which cholangiocyte-secreted bicarbonate creates an alkaline microenvironment shielding the epithelium from bile acid-induced injury, and increased biliary epithelial cells apoptosis.