Tissue Doppler imaging of the diaphragm in healthy subjects and critically ill patients

E Soilemezi, S Savvidou, P Sotiriou… - American Journal of …, 2020 - atsjournals.org
Rationale: Tissue Doppler imaging (TDI) is an echocardiographic method that measures the
velocity of moving tissue. Objectives: We applied this technique to the diaphragm to assess …

Linear and non-linear analysis of heart rate variability in master athletes and healthy middle-aged non-athletes

P Sotiriou, E Kouidi, T Samaras… - Medical engineering & …, 2013 - Elsevier
The present study examined the autonomic cardiac modulation of veteran athletes by the
use of traditional and modern methods of heart rate variability (HRV) analysis. Twenty-nine …

Left ventricular myocardial mechanics in cirrhosis: a speckle tracking echocardiographic study

ED Pagourelias, P Sotiriou… - …, 2016 - Wiley Online Library
Cirrhosis is commonly associated with impaired left ventricular (LV) myocardial contractile
reserve to stress and diastolic dysfunction. The aim of this study was to assess LV systolic …

Exploring the determinants of the cardiac changes after ultra-long duration exercise: the echocardiographic Spartathlon study

GA Christou, ED Pagourelias… - European Journal of …, 2020 - academic.oup.com
Aim The investigation of the pathophysiological determinants of cardiac changes following
ultra-long duration exercise. Methods Twenty-seven runners who finished a 246 km running …

Impact of a 246 Km ultra-marathon running race on heart: insights from advanced deformation analysis

ED Pagourelias, GA Christou, PG Sotiriou… - European Journal of …, 2022 - Taylor & Francis
Although previous studies suggest that prolonged intense exercise such as marathon
running transitorily alters cardiac function, there is little information regarding ultramarathon …

Arterial adaptations in athletes of dynamic and static sports disciplines–a pilot study

P Sotiriou, E Kouidi, A Karagiannis… - Clinical Physiology …, 2019 - Wiley Online Library
Background Structural and functional arterial adaptations with regard to the type and level of
training in young athletes are understudied. Our research aimed at evaluating them in two …

[HTML][HTML] Electrocardiographic characteristics of pediatric and adolescent football players

M Doumparatzi, P Sotiriou, A Deligiannis… - Sports Medicine and …, 2023 - Elsevier
Electrocardiographic characteristics of children and adolescents present differences
compared to adults. The aim of our work was to study electrocardiograms (ECGs) of football …

Arterial function after a 246 km ultra-marathon running race

N Koutlianos, P Sotiriou, G Christou… - … Journal of Sports …, 2021 - thieme-connect.com
There is little research about the effects of ultra-endurance exercise on arterial
morphological and functional properties. The aim was to assess the acute changes of the …

A novel strategy for evaluating tilt test in athletes with syncope

GA Christou, EJ Kouidi, MA Anifanti… - European Journal of …, 2016 - academic.oup.com
Background The tilt test is used for the diagnosis of reflex syncope (RS) and is characterized
by low sensitivity, especially in athletes. The objective of the study was the implementation of …

Pathophysiological mechanisms of noncardiac syncope in athletes

GA Christou, EJ Kouidi, MA Anifanti, PG Sotiriou… - International Journal of …, 2016 - Elsevier
Objective The investigation of the differences in orthostatic responses of individuals with a
history of noncardiac syncope (NCS) between athletes and nonathletes. Methods A passive …