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Coarctation Repair (coarctation + repair)

Distribution by Scientific Domains

Medical Sciences	100%

Selected Abstracts

Device Closure of a Secundum Atrial Septal Defect in a 4-Month-Old Infant with a Marginal Left Ventricle Following Coarctation Repair

CONGENITAL HEART DISEASE, Issue 6 2007
Emilie Jean-St-Michel BSc
ABSTRACT A male infant presented at birth with severe coarctation of the aorta and marginal left ventricular and mitral valve dimensions associated with a large secundum atrial septal defect. Following successful arch repair, the left ventricle remained small with preferential left-to-right atrial shunting and a dilated right ventricle. Clinically, the infant continued with tachypnea, poor feeding, and failure to thrive. At 4 months of age, the defect was closed with an Amplatzer Atrial Septal Occluder which resulted in immediate left ventricular cavity enlargement and clinical improvement. [source]

Descending Aortic Dissection Post Coarctation Repair in a Patient with Turner's Syndrome

JOURNAL OF CARDIAC SURGERY, Issue 2 2003
B. Badmanaban F.R.C.S.
A 45-year-old woman with Turner's syndrome had repair of coarctation by resection and interposition graft. Her postoperative course was uneventful. Chest X-ray two months postoperatively showed a hematoma in the proximal descending aorta, and a CT scan confirmed dissection distal to the coarctation repair, which was treated medically. Subsequent CT scanning one year later showed the hematoma resolving with no increase in the diameter of the dissected segment.(J Card Surg 2003;18:153-154) [source]

Near infrared spectroscopy monitoring during pediatric aortic coarctation repair

PEDIATRIC ANESTHESIA, Issue 7 2006
RICHARD J. BERENS MCW CHW
Summary Background:, Near infrared spectroscopy (NIRS) measures regional tissue oxygenation continuously and noninvasively and may allow assessment of changes in regional perfusion in real time. Methods:, We used NIRS monitoring to track real-time changes in regional oxygenation (rSO2) above and below the aortic cross-clamp in patients undergoing aortic coarctation repair and routinely stored these data in an operative electronic data base. This allowed us to analyze the changes in rSO2 during aortic coarctation repair for three pediatric age groups (neonates, infants <1 year, and children >1 year). Two site [cerebral (rSO2 -C) and somatic thoracodorsal (rSO2 -S)] rSO2 monitoring was performed in patients undergoing aortic coarctation repair. Data for rSO2 were analyzed across sites and age groups before, during and after cross-clamp. Results:, Twenty-six patients were available for analysis (11 neonates, 5 infants and 10 children). The regional oxygenation below the cross clamp (rSO2 -S) declined significantly in all three age groups, but the decrease in neonates and infants <1 year of age was significantly greater than in the older children. Conclusions:, Monitoring rSO2 -S provides real-time trend information of regional oxygenation below the aortic cross-clamp. The decline in rSO2 -S during aortic cross-clamp was rapid and large in most neonates and young infants <1 year which suggests impairment of regional perfusion presumably because of a lack of adequate collateral circulation to the monitored regional tissue. In contrast, the rSO2 -S changed only to a minor degree in most infants and children >1 year, possibly because they had time to develop a more adequate collateral circulation around incomplete aortic obstruction. [source]

Fate of hypertension after repair of coarctation of the aorta in adults

BRITISH JOURNAL OF SURGERY (NOW INCLUDES EUROPEAN JOURNAL OF SURGERY), Issue 4 2001
Dr M. A. Bhat
Background: Unrepaired aortic coarctation is known to have a detrimental effect on survival. The benefit of coarctation repair on systolic hypertension in adults has been questioned. This retrospective study was conducted to evaluate the impact of repair of aortic coarctation on systolic hypertension in adults. Methods: Repair of aortic coarctation was performed in 84 patients aged 16,54 (mean 29) years. All patients were hypertensive before surgical intervention (mean systolic blood pressure 162 mmHg; mean diastolic blood pressure 93 mmHg). All patients underwent echocardiography and/or cardiac catheterization. The peak mean systolic gradient across the coarctation was 60 mmHg. The patients were followed after coarctation repair for between 1 and 12 (mean 5·2) years. Results: There was significant regression of hypertension (P < 0·001) in all patients. Thirty-five patients (42 per cent) did not need any antihypertensive medication 3 months after surgery. The prevalence of hypertension at the last follow-up (after mean 5·2 years) was 31 per cent. Conclusion: Surgical repair of coarctation of the aorta in adults leads to regression of systolic hypertension and a decreased requirement for antihypertensive medication. © 2001 British Journal of Surgery Society Ltd [source]

Assessment of left ventricular systolic function using tissue Doppler imaging in children after successful repair of aortic coarctation

CLINICAL PHYSIOLOGY AND FUNCTIONAL IMAGING, Issue 1 2010
Tomasz Florianczyk
Summary Aim:, Assessment of left ventricular systolic function in children after the successful repair of aortic coarctation using tissue Doppler imaging (TDI). Methods:, The study group consisted of 32 patients (mean age 12·0 ± 4·2 years) after the aortic coarctation repair. The TDI parameters and the conventional echocardiographic endocardial and midwall indices of the left ventricular systolic function were analysed and compared with the results obtained from 34 healthy children. Results:, The systolic mitral annulus motion velocity, systolic myocardial velocity of the medial segment of the left ventricular septal wall, left ventricular strain and Strain Rate (SR) in the study group were significantly higher than in the control group, respectively: 6·92 ± 0·75 cm s,1 versus 6·45 ± 0·83 cm s,1; 5·82 ± 1·03 cm s,1 versus 5·08 ± 1·11 cm s,1; ,28·67 ± 6·04% versus ,22·53 ± 6·44% and ,3·20 ± 0·76 s,1 versus ,2·39 ± 0·49 s,1. Except midwall shortening fraction the conventional endocardial and midwall echocardiographic indices in the study group were significantly higher in comparison to the healthy controls. The left ventricular systolic meridional fibre stress and end-systolic circumferential wall stress did not differ between the examined groups. There were no differences of the TDI or conventional parameters between hypertensive and normotensive patients. Conclusions:, Left ventricular systolic performance in children after the surgical repair of aortic coarctation reveals tendency to rise in late follow-up despite a satisfactory result after surgery. Higher systolic strain and SR in children treated due to coarctation of the aorta may suggest the increased preserved left ventricular performance despite normalization of afterload. [source]