Sonia Kotanidou

Ms. Sonia Kotanidou

orcid

Research Focus & Metrics

Academic Career Length

3Years (2024-Present)

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

Representative Publications

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PANAGIOTIS TSIKOURASPANAGIOTIS TSIKOURAS
PANAGIOTIS TSIKOURAS
Panos AntsaklisPanos Antsaklis
Panos Antsaklis
KNKonstantinos Nikolettos
Konstantinos Nikolettos
SKSonia Kotanidou
Sonia Kotanidou
NKNektaria Kritsotaki
Nektaria Kritsotaki
NNNikos Nikolettos
Nikos Nikolettos
Fetal growth restriction (FGR), or intrauterine growth restriction (IUGR), is still the second most common cause of perinatal mortality. The factors that contribute to fetal growth restriction can be categorized into three distinct groups: placental, fetal, and maternal. The prenatal application of various diagnostic methods can, in many cases, detect the deterioration of the fetal condition in time because the nature of the above disorder is thoroughly investigated by applying a combination of biophysical and biochemical methods, which determine the state of the embryo–placenta unit and assess the possible increased risk of perinatal failure outcome and potential for many later health problems. When considering the potential for therapeutic intervention, the key question is whether it can be utilized during pregnancy. Currently, there are no known treatment interventions that effectively enhance placental function and promote fetal weight development. Nevertheless, in cases with fetuses diagnosed with fetal growth restriction, immediate termination of pregnancy may have advantages not only in terms of minimizing perinatal mortality but primarily in terms of reducing long-term morbidity during childhood and maturity.

29 January 2025 in Journal of Clinical Medicine
Verified
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PANAGIOTIS TSIKOURASPANAGIOTIS TSIKOURAS
PANAGIOTIS TSIKOURAS
KNKonstantinos Nikolettos
Konstantinos Nikolettos
SKSonia Kotanidou
Sonia Kotanidou
NKNektaria Kritsotaki
Nektaria Kritsotaki
EOEfthymios Oikononou
Efthymios Oikononou
NNNikos Nikolettos
Nikos Nikolettos
Objective: Pre-eclampsia (PE) is a complex, advancing condition marked either by the recent emergence of hypertension and proteinuria or by the recent onset of hypertension accompanied by notable end-organ impairment, which may occur with or without proteinuria. PE usually appears in the postpartum phase or after the 20th week of gestation, though it might appear sooner in cases of molar pregnancy. Pathophysiology: This disorder is a serious multisystem condition during pregnancy that can lead to serious, life-threatening complications for both the mother and the fetus if it is not diagnosed and managed promptly. These changes result from widespread and intense vasoconstriction caused by renin, angiotensin II (Ang II), aldosterone, and catecholamines. The renin–angiotensin–aldosterone system (RAAS) and its sequence of signaling reactions demonstrate its crucial role in regulating blood pressure and electrolyte balance that diverges in PE from that observed in healthy pregnancies. However, it is widely recognized that the above description is incomplete for pre-eclampsia and further relationships should be analyzed. The purpose of this article is to review and synthesize alterations in renal function and the RAAS during normal pregnancy and pre-eclampsia. We aim to provide clinical gynecologists with a comprehensive understanding of how pregnancy-specific adaptations can impact renal function and the RAAS, as well as the deviations observed in pre-eclampsia. Conclusion: This information is essential to enhance clinical awareness, improve the accuracy of diagnosis, and support evidence-based decision-making in the management of pregnant patients, especially those complicated by pre-eclampsia.

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Journal Article
Open access
PANAGIOTIS TSIKOURASPANAGIOTIS TSIKOURAS
PANAGIOTIS TSIKOURAS
SKSonia Kotanidou
Sonia Kotanidou
KNKonstantinos Nikolettos
Konstantinos Nikolettos
NKNektaria Kritsotaki
Nektaria Kritsotaki
ABAnastasia Bothou
Anastasia Bothou
NNNikos Nikolettos
Nikos Nikolettos
The term dystocia refers to labor characterized by a slow progression with delayed rates or even pauses in the dilation of the cervix or the descent of the fetus. Dystocia describes the deviation from the limits that define a normal birth and is often used as a synonym for the term pathological birth. Shoulder dystocia, also known as the manual exit of the shoulders during vaginal delivery on cephalic presentation, is defined as the “failure of the shoulders to spontaneously traverse the pelvis after delivery of the fetal head”. This means that obstetric interventions are necessary to deliver the fetus’s body after the head has been delivered, as gentle traction has failed. Abnormal labor (dystocia) is expressed and represented in partograms or by the prolongation of the latent phase or by slowing and pausing in the phases of cervical dilatation and fetal descent. While partograms are helpful in visualizing the progress of labor, regular use of them has not been shown to enhance obstetric outcomes considerably, and no partogram has been shown to be superior to others in comparative trials. Dystocia can, therefore, appear in any phase of the evolution of childbirth, so it is necessary to simultaneously assess all the factors that may contribute to its abnormal evolution, that is, the forces exerted, the weight, the shape, the presentation and position of the fetus, the integrity and morphology of the pelvis, and its relation to the fetus. When this complication occurs, it can result in an increased incidence of maternal morbidity, as well as an increased incidence of neonatal morbidity and mortality. Although several risk factors are associated with shoulder dystocia, it has proven impossible to recognize individual cases of shoulder dystocia in practice before they occur during labor. Various guidelines have been published for the management of shoulder dystocia, with the primary goal of educating the obstetrician and midwife on the importance of a preplanned sequence of maneuvers, thereby reducing maternal and neonatal morbidity and mortality.

22 August 2024 in Biomedicines
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PANAGIOTIS TSIKOURASPANAGIOTIS TSIKOURAS
PANAGIOTIS TSIKOURAS
NKNektaria Kritsotaki
Nektaria Kritsotaki
KNKonstantinos Nikolettos
Konstantinos Nikolettos
SKSonia Kotanidou
Sonia Kotanidou
EOEfthymios Oikononou
Efthymios Oikononou
NNNikos Nikolettos
Nikos Nikolettos
Adenomyosis is characterized by ectopic proliferation of endometrial tissue within the myometrium. Histologically, this condition is marked by the presence of islands of benign endometrial glands surrounded by stromal cells. The myometrium appears thinner, and cross-sectional analysis often reveals signs of recent or chronic hemorrhage. The ectopic endometrial tissue may respond to ovarian hormonal stimulation, exhibiting proliferative or secretory changes during the menstrual cycle, potentially leading to bleeding, uterine swelling, and pain. Adenomyosis can appear as either a diffuse or focal condition. It is crucial to understand that adenomyosis involves the infiltration of the endometrium into the myometrium, rather than its displacement. The surgical management of adenomyosis is contingent upon its anatomical extent. The high incidence of the disease and the myths that develop around it increase the need to study its characteristics and its association with pregnancy and potential obstetric complications. These complications often require quick decisions, appropriate diagnosis, and proper counseling. Therefore, knowing the possible risks associated with adenomyosis is key to decision making. Pregnancy has a positive effect on adenomyosis and its painful symptoms. This improvement is not only due to the inhibition of ovulation, which inhibits the bleeding of adenomyotic tissue, but also to the metabolic, hormonal, immunological, and angiogenic changes associated with pregnancy. Adenomyosis affects pregnancy through disturbances of the endocrine system and the body’s immune response at both local and systemic levels. It leads to bleeding from the adenomyotic tissue, molecular and functional abnormalities of the ectopic endometrium, abnormal placentation, and destruction of the adenomyotic tissue due to changes in the hormonal environment that characterizes pregnancy. Some of the obstetric complications that occur in women with adenomyosis in pregnancy include miscarriage, preterm delivery, placenta previa, low birth weight for gestational age, obstetric hemorrhage, and the need for cesarean section. These complications are an understudied field and remain unknown to the majority of obstetricians. These pathological conditions pose challenges to both the typical progression of pregnancy and the smooth conduct of labor in affected women. Further multicenter studies are imperative to validate the most suitable method for concluding labor following surgical intervention for adenomyosis.

Verified
Journal Article
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SKSonia Kotanidou
Sonia Kotanidou
NNNikos Nikolettos
Nikos Nikolettos
NKNektaria Kritsotaki
Nektaria Kritsotaki
PANAGIOTIS TSIKOURASPANAGIOTIS TSIKOURAS
PANAGIOTIS TSIKOURAS
ATAngeliki Tiptiri-Kourpeti
Angeliki Tiptiri-Kourpeti
KNKonstantinos Nikolettos
Konstantinos Nikolettos
Kisspeptins play a crucial role in the normal functioning of the reproductive axis in both humans and animals by stimulating the secretion of gonadotropin-releasing hormone (GnRH) from the hypothalamus. Recent studies have investigated the association of kisspeptins to infertility of diverse causes and the therapeutic potential of kisspeptins in infertility. Exogenous administration of kisspeptins appears to hold significant promise in restoring fertility, with ongoing studies in their application in ovarian stimulation protocols and as cryoprotectants during vitrification. This review provides a comprehensive analysis of the role of kisspeptins in reproductive physiology and their potential as therapeutic agents for infertility, highlighting their advantages over conventional treatments and their future prospects in clinical practice.

Verified
Journal Article
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KNKonstantinos Nikolettos
Konstantinos Nikolettos
APAlexandros Patsouras
Alexandros Patsouras
SKSonia Kotanidou
Sonia Kotanidou
Nikolaos GarmpisNikolaos Garmpis
Nikolaos Garmpis
Iason PsilopatisIason Psilopatis
Iason Psilopatis
Christos DamaskosChristos Damaskos
Christos Damaskos
Background/Objectives: Endometriosis is characterized by the presence of ectopic endometrial-like glands and stroma outside the endometrial cavity, which mainly occurs in the pelvic cavity. Pulmonary endometriosis, or thoracic endometriosis syndrome (TES), describes the rare presence of endometrial-like cells in the thoracic cavity and includes catamenial pneumothorax, catamenial hemothorax, hemoptysis, and lung nodules. Our aim is to summarize the results of all reported cases of TES. Methods: Extensive research was conducted through MEDLINE/PUBMED using the keywords “thoracic endometriosis”, “thoracic endometriosis syndrome”, “catamenial pneumothorax”, “catamenial hemoptysis”, and “TES”. Following PRISMA guidelines, all published cases of TES between January 1950 and March 2024 were included. A systematic review of 202 studies in English, including 592 patients, was performed. Results: The median age of women with TES is 33.8 years old. The most common clinical presentation is catamenial pneumothorax (68.4%), while lesions are mainly found in the right lung unilaterally (79.9%). Chest computed tomography (CT) was used alone or after an X-ray to determine the pathological findings. Ground-glass opacity nodules and cystic lesions represent the most common finding in CT, while pneumothorax is the most common finding in X-rays. Video-assisted thoracoscopic surgery (VATS) is the main therapeutic approach, usually in combination with hormonal therapy, including GnRH analogues, progestins, androgens, or combined oral contraceptives. Hormonal therapy was also administered as monotherapy. Symptom recurrence was reported in 10.1% of all cases after the treatment. Conclusions: High clinical awareness and a multidisciplinary approach are necessary for the best clinical outcome for TES patients. More studies are required to extract safer conclusions.