scholarly journals Early corrective surgery may prevent Baroreflex impairment in congenital heart diseases

2014 ◽  
Vol 1 (1) ◽  
pp. 20-27
Author(s):  
Domonkos Cseh ◽  
Adrienn Sárközi ◽  
Alexandra Pintér

Arrhythmias in tetralogy of Fallot (ToF) and transposition of the great arteries (TGA) could be the consequence of reduced baroreflex-sensitivity (BRS). Hypoxia until the first surgical correction in these patients may impair BRS. We aimed to compare the BRS of ToF, TGA and control subjects and test the effect of the timing of operation on BRS. 19 patients with ToF, 22 patients with TGA and 19 healthy controls were enrolled. Carotid pulse pressure (PPc) was similar in ToF and TGA patients but lower in controls. BRS was lower in the ToF group compared to the control or to the TGA groups. The first operation was performed later in patients with ToF than in patients with TGA. Adjustment for PPc attenuated the difference in BRS between ToF and control subjects. Adjustment for age at corrective surgery abolished the difference in BRS between the ToF and the TGA groups. In ToF patients, reduced BRS could be explained by the stiffening of central arteries and the later corrective surgery. Earlier surgical correction may prevent irreversible deterioration of baroreflex-function and arrhythmia development in ToF patients.

Author(s):  
А.В. Цепокина ◽  
А.В. Понасенко ◽  
Н.С. Деева ◽  
А.В. Шабалдин

Актуальность: Поиск биологических маркёров, вовлеченных в патогенез врожденных пороков сердца (ВПС), остается актуальным вопросом современной медицины и биологии. Врожденные пороки - мультифакторное заболевание, причинами развития которого является взаимовлияющее действие эндогенных и экзогенных факторов. В настоящее время показана роль генов семейства GATA и NOTCH1 в формировании предрасположенности к развитию врожденных пороков сердца. Материалы и методы: Группу исследования составили 58 детей с диагнозом дефекта межжелудочковой и межпредсердной перегородок, в контрольную группу включены 103 ребенка без данной патологии. Генотипирование проводили полимеразной цепной реакцией в режиме реального времени с использованием TaqMan-зондов. Результаты: Исследование встречаемости генотипов генов GATA6 и NOTCH1 в исследуемой и контрольной группах не показало статистически значимых различий. Однако, анализ межгенных взаимодействий при помощи программы MDR 3.0.2. позволил выделить ряд протективных и рисковых генотипов. Заключение: Несмотря на отсутствие статистически значимых различий по частоте встречаемости генотипов, полученные в ходе анализа межгенных связей сочетания генотипов могут быть связаны с предрасположенностью к развитию ВПС. Background: The search for biological markers involved in the congenital heart diseases pathogenesis remains a topical problem in modern medicine and biology. Congenital heart diseases are a multifactorial disease caused by the mutually affecting effects of endogenous and exogenous factors. Currently, the role of GATA and NOTCH1 gene family in the predisposition to development of congenital heart diseases is shown. Materials and methods: 58 children with a diagnosis of congenital heart diseases (defects in the interventricular and atrial septa) and 103 children without this pathology were included in the study and the control groups, respectively. Genotyping was performed by real-time polymerase chain reaction using TaqMan probes Results: A study of the frequencies of the genotypes in the GATA6 and NOTCH1 genes in the study and control groups showed no statistically significant differences. At the same time, the analysis of gene-gene interactions using MDR 3.0.2 software allows to determine a number of protective and risk genotypes. Conclusion: Despite the absence of significant differences in the frequency of genotypes, combinations of genotypes obtained during the analysis of gene-gene interactions may be associated with a predisposition to the development of congenital heart diseases.


2015 ◽  
Vol 2015 ◽  
pp. 1-5 ◽  
Author(s):  
Mohamed O. Hafez ◽  
Saed M. Morsy ◽  
Ragab A. Mahfoz ◽  
Ahmed R. Ali

Background.Children with congenital heart diseases (CHDs) may have a risk of developing myocardial injury caused by volume and pressure overload.Objective.To evaluate the incidence of myocardial injury in children with cyanotic and acyanotic CHDs using cTnI assay and to correlate it with different hemodynamic parameters.Methods.This study included 80 children with CHDs (40 acyanotic and 40 cyanotic) as well as 40 healthy children (control group). Serum cTnI levels were measured for patients and control. Pulmonary to systemic blood flow (Qp/Qs) and pulmonary to systemic arterial pressure (Pp/Ps) ratios were measured for children with CHDs during cardiac catheterization.Results.Sixty-four out of 80 patients with CHDs had myocardial injury as evidenced by increased cTnI. Serum cTnI was significantly higher in both cyanotic and acyanotic groups compared to control group (p<0.05). Serum cTnI level significantly correlated with oxygen saturation (SpO2), ejection fraction (EF), Qp/Qs, and Pp/Ps ratios.Conclusion.The incidence of myocardial injury was high in children with CHDs. The use of cTnI for follow-up of children with CHDs may help early detection of myocardial injury and help early management of these cases.


2017 ◽  
Vol 2 (1) ◽  
Author(s):  
Ahmed Farouk ◽  
Hala M. ElBadre ◽  
Mohammed H. Hassan ◽  
Mohamed A.M. Mostafa ◽  
Mohamed AbdelBary ◽  
...  

2007 ◽  
Vol 5 (3) ◽  
pp. 0-0
Author(s):  
Virgilijus Lebetkevičius ◽  
Virgilijus Tarutis ◽  
Rita Sudikienė ◽  
Daina Liekienė ◽  
Kęstutis Lankutis ◽  
...  

Virgilijus Lebetkevičius1, Virgilijus Tarutis1, Rita Sudikienė1, Daina Liekienė1, Kęstutis Lankutis1, Giedrė Nogienė1, Vidmantas Jonas Žilinskas1, Vytautas Sirvydis1, Kęstutis Versockas2, Žydrė Jurgelienė2, Asta Bliūdžiūtė21 Vilniaus universiteto Širdies chirurgijos centras, Santariškių g. 2, LT-08661 Vilnius2 Vilniaus universiteto ligoninės Santariškių klinikų Anesteziologijos,intensyviosios terapijos ir skausmo gydymo centras, Santariškių g. 2, LT-08661 VilniusEl paštas: [email protected] Tikslas Apžvelgti Vilniaus universiteto Širdies chirurgijos centro naujagimių įgimtų širdies ydų chirurgijos rezultatus, juos įvertinti ir padaryti išvadas. Metodai Nuo 1964 iki 2006 metų Vilniaus universiteto Širdies chirurgijos centre atlikta 5066 įgimtų širdies ydų operacijos vaikams iki 18 metų. Naujagimių dalis – 307 operacijos (6,1%). Korekcijos naujagimiams atliktos naudojant dirbtinę kraujo apytaką (DKA) ir be jos. Rezultatai Įgimtų širdies ydų operacijos suskirstytos į keturis etapus. 1974–1990 metai (1974 m. atlikta pirmoji širdies operacija naujagimiui). Tuo laikotarpiu mirštamumas buvo 100%. 1991–1995 metais – mirštamumas 71%, 1996–2000 metais – mirštamumas 68%, 2001–2006 metais – mirštamumas 38%, 2006 metais mirštamumas – 22%. Išvados Analizuojant naujagimių širdies chirurgijos rezultatus, pažymėtina, kad per pastaruosius metus mirštamumas sumažėjo iki priimtinų dydžių, kurie artėja prie kitų pasaulio širdies chirurgijos klinikų rezultatų. Gerėjant visam kompleksui tyrimo, gydymo, slaugymo priemonių visose grandyse (kardiologija, anesteziologija-reanimatologija, chirurgija), mirštamumą įmanoma sumažinti iki minimalaus. Pagrindiniai žodžiai: įgimtos širdies ydos, širdies chirurgija, naujagimiai Corrective surgery of congenital heart defects: experience of Vilnius University Heart Surgery Centre Virgilijus Lebetkevičius1, Virgilijus Tarutis1, Rita Sudikienė1, Daina Liekienė1, Kęstutis Lankutis1, Giedrė Nogienė1, Vidmantas Jonas Žilinskas1, Vytautas Sirvydis1, Kęstutis Versockas2, Žydrė Jurgelienė2, Asta Bliūdžiūtė21 Vilnius University, Heart Surgery Centre, Santariškių str. 2, LT-08661 Vilnius2 Vilnius University Hospital „Santariškių klinikos“, Anaesthesiology Intensive Careand Pain Management Centre, Santariškių str. 2, LT-08661 VilniusE-mail: [email protected] Objective To access the outcome and mortality trend in newborns undergoing corrective surgery for congenital heart defect. Methods We reviewed the hospital records on 307 neonates under 30 days of life, who had congenital heart defects operated on at the Heart Surgery Center of Vilnius University, Lithuania, in 1994 through 2006. Early and late mortality results were analyzed. Results From January 1974 to 2006, 307 neonates with congenital heart disease underwent surgical repair at Heart Surgery Clinic of Vilnius University. It came to 6.1% of all 5066 procedures of the congenital heart diseases performed. The number of neonate operations considerably increased in the later years, because a special department with proper technique was established. 144 neonates underwent surgery repair with cardiopulmonary bypass and 163 neonates were operated on without cardiopulmonary bypass. The mean age of the patients was 11.8 ± 0.28 days. There were 113 girls and 194 boys. Conclusions Mortality from 71% in 1991–1995 dropped to 38% in 2001–2006 and 22% in 2006. Key words: congenital heart diseases, cardiosurgery, neonates


Author(s):  
Marwa M. Elgendy ◽  
Rania Salah Elzayat ◽  
Mostafa Abdo ◽  
Hamed M. Elsharkawy ◽  
Maha Allam ◽  
...  

Abstract Objectives The aim of this study was to assess the feasibility of urinary N-terminal pro-brain natriuretic peptide (NT-proBNP) as noninvasive screening tool for congenital heart diseases in full-term neonates with respiratory distress. Study Design A prospective cohort study was conducted on 90 full-term infants. Newborn were assigned into three groups: pulmonary, cardiac, and control groups. Urinary NT-proBNP were measured in all studied groups at day 1 (NT-proBNP1) and day 5 (NT-proBNP5). Results Urinary NT-proBNP1 was higher in cardiac group compared with pulmonary and control groups (488 ± 91, 321 ± 80, and 218 ± 41 ng/L, respectively; p ≤ 0.001). NT-proBNP5 was lower in pulmonary and control group than cardiac group (245 ± 84, 137 ± 39, and 546 ± 284 ng/L, respectively, with p ≤ 0.001). Receiver operating characteristic (ROC) analysis was performed to assess predictive value of NT-proBNP1 in cardiac and pulmonary populations. ROC showed area under curve of 0.97 and cutoff point of ≥386.5 ng/L referring to a cardiac etiology with sensitivity of 93.3%, specificity of 86.7%, negative predictive value of 93%, and positive predictive value of 88%. Conclusion Urinary NT-proBNP is feasible to be a noninvasive screening tool to predict congenital heart diseases in full-term neonates. Further studies are needed to assess the correlation between plasma and urinary levels of NT-proBNP in congenital heart diseases in full-term and preterm infants.


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