Patency and development of stenosis in modified Blalock-Taussig shunts constructed using expanded polytetrafluoroethylene

1997 ◽  
Vol 7 (2) ◽  
pp. 153-159
Author(s):  
François Godart ◽  
Shakeel A. Qureshi ◽  
Ary Simha ◽  
Nuala Fagg ◽  
Philip B. Deverall ◽  
...  
Keyword(s):  
Regression Analysis ◽  
Heart Disease ◽  
Patency Rate ◽  
Cyanotic Heart Disease ◽  
Progressive Reduction ◽  
Expanded Polytetrafluoroethylene ◽  
Blalock Taussig Shunt

AbstractConstruction of a modified Blalock-Taussig shunt using polytetrafluroethylene is frequently used for palliation in infants with complex cyanotic heart disease. This study was performed to assess angiographically the late patency rate of such prosthetic shunts. A modified Blalock-Taussig shunt had been constructed in 82 children and, of these, 63 (77%) patients had post-operative angiography and were included in this study. There were 29 males and 34 females, ranging in age from 1 day to 164 months. A second shunt was needed in 7 patients. Thus, 70 shunts were studied. Of the shunts, 16 were 4 mm in diameter, 28 shunts 5 mm in diameter, and 26 shunts 6 mm in diameter. Postoperative angiography was performed on 1 day to 132 months (median 39 months) after construction of the shunts. Acute post operative occlusion occurred in 2(3%) patients, who had 5 and 6 mm shunts, respectively. At the latest follow-up (median 39 ± 26 months), 6(9%) late occlusions were noticed. Overall patency was 89% for all the shunts, with 94% of the 4 mm shunts, 85% of the 5 mm and 88% of the 6 mm shunts being patent. Regression analysis showed a progressive reduction in diameter of the graft with time. This narrowing of the graft may have been related to the formation of a ‘neointima’ due to fibrous hyperplasia.

Stent Implantation to Maintain Patency of a Stenosed Blalock Taussig Shunt

2005 ◽  
Vol 13 (3) ◽  
pp. 274-276 ◽  
Author(s):  
Amjad Kouatli ◽  
Jameel Al-Ata ◽  
M Omar Galal ◽  
Muhammed A Amin ◽  
Arif Hussain
Keyword(s):  
Congenital Heart Disease ◽  
Heart Disease ◽  
Oxygen Saturation ◽  
Stent Implantation ◽  
Congenital Heart ◽  
Balloon Dilation ◽  
Complex Congenital Heart Disease ◽  
Blalock Taussig Shunt

A 14-year-old female with complex congenital heart disease underwent a left-sided classical Blalock Taussig (BT) shunt 15 days after birth. Ten years after the operation her oxygen saturation had decreased significantly. An angiography revealed a severely stenosed BT shunt. Balloon dilation including implantation of a 6 × 13 mm stent was performed successfully. Immediately after intervention, oxygen saturation rose from 55% to 80 84% in room air. Follow-up at a year and a half later showed the classical BT shunt was still patent.

scholarly journals Influence of Waist-to-Hip Ratio on the Prognosis of Heart Failure Patients With Revascularized Coronary Heart Disease

2021 ◽  
Vol 8 ◽  
Author(s):  
Yingyue Zhang ◽  
Yan Zhang ◽  
Yajun Shi ◽  
Wei Dong ◽  
Yang Mu ◽  
...  
Keyword(s):  
Heart Failure ◽  
Coronary Heart Disease ◽  
Regression Analysis ◽  
Heart Disease ◽  
Cox Regression ◽  
Characteristic Curve ◽  
Cardiac Events ◽  
Cox Regression Analysis ◽  
Waist To Hip Ratio

Background: Heart failure (HF) is considered one of the most common complications of coronary heart disease (CHD), with a higher incidence of readmission and mortality. Thus, exploring the risk factors related to the prognosis is necessary. Moreover, the effect of the waist-to-hip ratio (WHR) on HF patients with revascularized CHD is still unclear. Thus, we aimed to assess the influence of WHR on the prognosis of HF patients with revascularized CHD.Methods: We collected data of HF patients with revascularized CHD who were referred to the Cardiac Rehabilitation Clinic of PLA Hospital from June 30, 2015, to June 30, 2019. Cox proportional hazard regression analysis was used to determine the relationship between WHR and prognosis of HF patients with revascularized CHD. Patients were divided into higher and lower WHR groups based on the cutoff WHR value calculated by the X-tile software. Cox regression analysis was used to analysis the two groups. We drew the receiver operating characteristic curve (ROC) of WHR and analyzed the differences between the two groups. Endpoints were defined as major adverse cardiac events (MACE) (including all-cause mortality, non-fatal myocardial infarction, unscheduled revascularization, and stroke).Results: During the median follow-up of 39 months and maximum follow-up of 54 months, 109 patients were enrolled, of which 91.7% were males, and the mean age was 56.0 ± 10.4 years. WHR was associated with the incidence of MACE in the Cox regression analysis (p = 0.001); an increase in WHR of 0.01 unit had a hazard ratio (HR) of 1.134 (95%CI: 1.057–1.216). The WHR cutoff value was 0.93. Patients in the higher WHR group had a significantly higher risk of MACE than those in the lower WHR group (HR = 7.037, 95%CI: 1.758–28.168). The ROC area under the curve was 0.733 at 4 years. Patients in the higher WHR group had a higher body mass index (BMI; 26.7 ± 3.5 vs. 25.4 ± 2.4, P = 0.033) than patients in the lower WHR group.Conclusions: WHR is an independent risk factor of the long-term prognosis of Chinese HF patients with revascularized CHD. Patients with WHR ≥ 0.93 require intensified treatment. Higher WHR is related to higher BMI and ΔVO2/ΔWR.

scholarly journals Perigraft seroma following Right Modified Blalock Taussig shunt in a child with complex cyanotic heart disease

2013 ◽  
Vol 18 (2) ◽  
pp. 25
Author(s):  
DCL De Silva ◽  
SN Perera ◽  
I Wijemanne ◽  
LAP Perera ◽  
R Mahalekamge ◽  
...  
Keyword(s):  
Heart Disease ◽  
Cyanotic Heart Disease ◽  
Perigraft Seroma ◽  
Blalock Taussig Shunt

Thrombocytopaenia in cyanotic CHD

2020 ◽  
pp. 1-6
Author(s):  
Simona Danioth ◽  
Urs Schanz ◽  
Matthias Greutmann
Keyword(s):  
Platelet Count ◽  
Heart Disease ◽  
Haemoglobin Level ◽  
Oxygen Saturation ◽  
Heart Defects ◽  
Inverse Correlation ◽  
Rank Test ◽  
Cyanotic Heart Disease ◽  
Platelet Counts

Abstract Introduction: Thrombocytopaenia is common in adults with cyanotic heart disease. Our aim was to explore potential mechanisms for thrombocytopaenia in these vulnerable patients. Methods: Adults with cyanotic heart defects were identified from our clinical database. Haemoglobin levels, platelet counts, and resting oxygen saturations were determined at baseline and during follow-up. Associations between patient characteristics and cardiac physiology with these parameters at baseline and during follow-up were analysed using regression models. Survival estimates were determined by the Kaplan–Meier method. Results: We included 79 patients (mean age 32.2 ± 12.4, 48 (61%) Eisenmenger syndrome, 20 (25%) Down syndrome). Mean oxygen saturation was 84.1 ± 5.9%; 38 (48%) had thrombocytopaenia. There was a strong inverse correlation between platelet count and haemoglobin level (R = −0.655, R2 = 0.429, p < 0.0001) and a weaker but significant positive correlation between platelet count and oxygen saturation (R = 0.345, R2 = 0.119, p = 0.002). There was a significant inverse correlation between decrease in platelet count and increase in haemoglobin level during follow-up (R = −0.401, R2 = 0.161, p = 0.001) but not to changes in oxygen saturation (R = 0.043, R2 = 0.002, p = 0.726). Survival estimates were lower for patients with thrombocytopaenia at baseline (log-rank test p < 0.0001). Conclusions: Our findings suggest a direct inverse correlation between platelet counts and haemoglobin levels in adults with cyanotic heart disease. Further studies are required to explore the mechanisms of thrombocytopaenia in cyanotic heart disease and its potential role as an independent marker of risk.

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