Risk Factors For Unfavorable Outcomes After Bidirectional Cavopulmonary Anastomosis

2017 ◽  
Vol 8 (5) ◽  
pp. 575-583 ◽  
Author(s):  
Nataliya R. Nichay ◽  
Yuriy N. Gorbatykh ◽  
Igor A. Kornilov ◽  
Ilya A. Soynov ◽  
Yuriy Y. Kulyabin ◽  
...  
Keyword(s):  
Risk Factors ◽  
Proportional Hazards ◽  
Cox Regression ◽  
Fontan Procedure ◽  
Unfavorable Outcome ◽  
Atrioventricular Valve Regurgitation ◽  
Cavopulmonary Anastomosis ◽  
Mean Pressure ◽  
Bidirectional Cavopulmonary Anastomosis ◽  
Anomalous Pulmonary Venous Connection

Background: Bidirectional cavopulmonary anastomosis (BCPA) is an important preliminary step toward the Fontan procedure; thus, understanding of risk factors for morbidity and mortality after BCPA may ultimately promote improved rates of success with Fontan completion and general survival. This study evaluated survival and predictors of unfavorable outcomes in patients after BCPA. Methods: Clinical data of 157 patients who underwent BCPA from 2003 to 2015 at a single center were retrospectively analyzed. Results: Three-year and nine-year survival after BCPA were 87.1% ± 2.8% and 85.8% ± 2.9%, respectively. Freedom from unfavorable outcomes (mortality, BCPA takedown, nonsuitability for Fontan procedure) was 83.8% ± 3.1% at three years and 73.5% ± 4.8% at nine years. Multivariate proportional hazards regression analysis revealed that total anomalous pulmonary venous connection (TAPVC; hazard ratio [HR]: 3.74, 95% confidence interval [CI]: 1.35-10.36; P = .01) and increased mean pressure in BCPA circuit (HR: 1.17, 95% CI: 1.02-1.34; P = .03) were independent risk factors for unfavorable outcomes. Postoperative mean pressure in BCPA circuit in patients with poor outcomes was median 16 mm Hg (interquartile range [IQR]: 14-18 mm Hg) versus median 14 mm Hg (IQR: 12-15.5 mm Hg) in patients with favorable outcomes ( P < .01). Preoperative (HR: 1.87, 95% CI: 1.20-2.91; P < .01) and postoperative atrioventricular valve regurgitation (AVVR; HR: 2.22, 95% CI: 1.24-3.94; P < .01) were also associated with unfavorable outcome in univariate Cox regression. Conclusions: Elevated mean pressure in the BCPA circuit is the main predictor of unfavorable outcome; therefore, thorough preoperative examination and careful patient selection are critical points for successful intermediate-stage and later Fontan completion. Total anomalous pulmonary venous connection and insufficient correction of AVVR worsen the prognosis in this patient group.

the clinical impact of antegrade pulmonary blood flow on the bidirectional cavopulmonary shunt in infants

2004 ◽  
Vol 14 (S3) ◽  
pp. 44-47 ◽  
Author(s):  
lucia migliazza ◽  
francesco seddio ◽  
francesco paolo annecchino ◽  
giancarlo crupi
Keyword(s):  
Blood Flow ◽  
Pulmonary Blood Flow ◽  
Ventricular Dysfunction ◽  
Fontan Procedure ◽  
Volume Overload ◽  
Clinical Impact ◽  
Cavopulmonary Anastomosis ◽  
Alternative Sources ◽  
Bidirectional Cavopulmonary Anastomosis ◽  
Cavopulmonary Shunt

the bidirectional cavopulmonary anastomosis is commonly used in the palliation of patients with a functionally univentricular physiology. the management of alternative sources of flow of blood to the lungs, as well as the magnitude of acceptable accessory blood flow at the time of surgery, nonetheless, remains controversial. these issues are particularly significant when a cavopulmonary anastomosis is performed in infants who may become candidates for a fontan procedure. indeed, a long-standing volume overload, which is invariably associated with the maintenance of accessory sources of pulmonary blood flow, may result in systemic ventricular dysfunction. these observations prompted us to review the influence of antegrade pulmonary blood flow in the management of infants undergoing a cavopulmonary anastomosis.

scholarly journals Survival Analysis of Symptomatic COVID-19 in Phuentsholing Municipality, Bhutan

2021 ◽  
Vol 18 (20) ◽  
pp. 10929
Author(s):  
Kinley Gyeltshen ◽  
Tsheten Tsheten ◽  
Sither Dorji ◽  
Thinley Pelzang ◽  
Kinley Wangdi
Keyword(s):  
Risk Factors ◽  
Proportional Hazards ◽  
Cox Regression ◽  
Local Population ◽  
Population Group ◽  
Cox Proportional Hazards ◽  
Front Line ◽  
Active Population ◽  
Front Line Workers ◽  
Isolation Ward

COVID-19 is a disease that is caused by a highly transmissible and pathogenic novel coronavirus: severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). All of the COVID-19 positive cases in Bhutanese travellers returning via the Phuentsholing point of entry, the local population, and Indian nationals were isolated in the Phuentsholing COVID-19 isolation ward, Bhutan. This study aimed to identify the risk factors for developing symptoms among COVID-19 positive patients in this ward. A retrospective cohort study was conducted using the data regarding COVID-19 positive cases in the Phuentsholing COVID-19 isolation ward from 28 May 2020 to 31 May 2021. The Cox proportional hazards regression model was used to identify the risk factors of developing COVID-19 symptoms. There were 521 patients in the study; 368 (70.6%) were males and 153 (29.4%) were females. The mean age was 32 years (with a range of 1–78 years), and 290 (56.0%) reported at least one symptom. The median length of isolation was eight days (with a range of 3–48 days). The common symptoms were: cough (162, 31.0%), fever (135, 26.0%), and headache (101, 19.0%). In the multivariable Cox regression, vaccinated patients were 77.0% (p = 0.047) less likely to develop symptoms compared to those who were not vaccinated. The front line workers and the mini-dry port (MDP) workers were 15 (p = 0.031) and 41 (p < 0.001) times more likely to be symptomatic compared to returning travellers. The young and economically active population group was most commonly affected by COVID-19. The presence of risk factors, such as being front line workers, MDP workers, or not being vaccinated against COVID-19, meant that patients had a higher probability of developing symptoms of COVID-19.

scholarly journals Clinical Characteristics and Risk Factors for Mortality of COVID-19 Patients With Diabetes in Wuhan, China: A Two-Center, Retrospective Study

2020 ◽  
Author(s):  
Qiao Shi ◽  
Xiaoyi Zhang ◽  
Fang Jiang ◽  
Xuanzhe Zhang ◽  
Chibu Bimu ◽  
...  
Keyword(s):  
Risk Factors ◽  
Cardiovascular Disease ◽  
Retrospective Study ◽  
Proportional Hazards ◽  
Cox Regression ◽  
Laboratory Data ◽  
Cox Proportional Hazards ◽  
Hospital Death ◽  
Regression Analyses ◽  
Patients With Diabetes

<div><b>OBJECTIVE: </b>Diabetes is common in COVID-19 patients and associated with unfavorable outcomes. We aimed to describe the characteristics, outcomes and analyze the risk factors for in-hospital mortality of COVID-19 patients with diabetes.</div><div><b><br></b></div><div><b>RESEARCH DESIGN AND METHODS: </b>This two-center, retrospective study was performed at two tertiary hospitals in Wuhan, China. Confirmed COVID-19 patients with diabetes (N=153) who were discharged or died from January 1, 2020, to March 8, 2020, were identified. One sex- and age-matched COVID-19 patient without diabetes was randomly selected for each patient with diabetes. Demographic, clinical, and laboratory data were abstracted. Cox proportional hazards regression analyses were performed to identify the risk factors associated with the mortality in these patients.</div><div><br></div><div><b>RESULTS:</b> Of 1561 COVID-19 patients, 153 (9.8%) had diabetes, with a median age of 64.0 (IQR, 56.0-72.0) years. A higher proportion of ICU admission (17.6% vs 7.8%, P=0.01) and more fatal cases (20.3% vs 10.5%, P=0.017) were identified in COVID-19 patients with diabetes than in the matched patients. Multivariable Cox regression analyses of these 306 patients showed that hypertension (hazards ratio [HR] 2.50, 95% CI 1.30-4.78), cardiovascular disease (HR 2.24, 95% CI 1.19-4.23) and chronic pulmonary disease (HR 2.51, 95% CI 1.07-5.90) were independently associated with in-hospital death. Diabetes (HR 1.58, 95% CI 0.84-2.99) was not statistically significantly associated with in-hospital death after adjustment. Among patients with diabetes, nonsurvivors were older (76.0 vs 63.0 years), most were male (71.0% vs 29.0%), and were more likely to have underlying hypertension (83.9% vs 50.0%) and cardiovascular disease (45.2% vs 14.8%) (all P-values<0.05). Age ≥70 years (HR 2.39, 95% CI 1.03-5.56) and hypertension (HR 3.10, 95% CI 1.14-8.44) were independent risk factors for in-hospital death of patients with diabetes.</div><div><br></div><div><b>CONCLUSIONS: </b>COVID-19 patients with diabetes had worse outcomes compared with the sex- and age-matched patients without diabetes. Older age and comorbid hypertension independently contributed to in-hospital death of patients with diabetes.</div>

scholarly journals Dietary Patterns May Be Nonproportional Hazards for the Incidence of Type 2 Diabetes: Evidence from Korean Adult Females

Nutrients ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 2522
Author(s):  
Chung ◽  
Kim ◽  
Kwock
Keyword(s):  
Risk Factors ◽  
Type 2 Diabetes ◽  
Metabolic Syndrome ◽  
Dietary Patterns ◽  
Proportional Hazards ◽  
Cox Regression ◽  
Diabetes Incidence ◽  
Interaction Terms ◽  
Proportional Hazards Assumption

This study aimed to examine the association between the incidence of type 2 diabetes and various risk factors including dietary patterns based on the rigorous proportional hazards assumption tests. Data for 3335 female subjects aged 40–69 years from the Korea Genome and Epidemiology Study were used. The assumption of proportional hazards was tested using the scaled Schoenfeld test. The stratified Cox regression was used to adjust the nonproportionality of diabetic risk factors, and the regression was adjusted for potential confounding variables, such as age, marital status, physical activity, drinking, smoking, BMI, etc. Metabolic syndrome and meat and fish pattern variables were positively associated with diabetes. However, dietary patterns and metabolic syndrome variables violated the proportional hazards assumption; therefore, the stratified Cox regression with the interaction terms was applied to adjust the nonproportionality and to allow the possible different parameters over each stratum. The highest quartile of meat and fish pattern was associated with diabetes only in subjects aged over 60 years. Moreover, subjects who were obese and had metabolic syndrome had higher risk in bread and snacks (HR: 1.85; 95% CI: 1.00–3.40) and meat and fish pattern (HR: 1.82; 95% CI: 1.01–3.26), respectively. In conclusion, a quantitative proportional hazards assumption test should always be conducted before the use of Cox regression because nonproportionality of risk factors could induce limited effect on diabetes incidence.

P6229Potato consumption is associated with total and cause-specific mortality: a population-based cohort study and pooling of prospective studies with 73,717 participants

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
M Mazidi ◽  
D P Mikhailidis ◽  
N Katsiki ◽  
D Pella ◽  
M Banach
Keyword(s):  
Risk Factors ◽  
Prospective Studies ◽  
Cardiometabolic Risk ◽  
Proportional Hazards ◽  
Cox Regression ◽  
Cox Proportional Hazards ◽  
Cardiometabolic Risk Factors ◽  
Cox Models ◽  
Potato Consumption

Abstract Background The long-term effect of potato consumption on mortality and cardiometabolic risk factors is still largely unknown. Purpose Using the National Health and Nutrition Examination Surveys (NHANES) 1999–2010, we evaluated the long-term impact of potato intake on total and cause-specific (cardiovascular disease [CVD],cerebrovascular disease and cancer] mortality, and the results were next validated in the systematic review and meta-analysis of cohort studies investigating pooled associations of potato consumption with all-cause and cause-specific death. Methods Vital status through December 31, 2011 was ascertained. Cox proportional hazards were applied to determine the hazard ratios (HRs) and 95% confidence intervals (95% CIs) of mortality for each quartile of the potato intake, with the lowest quartile (Q1 – with the lowest intake) used as reference. We used adjusted Cox regression to determine the risk ratio (RR) and 95% CI, as well as random effects models and generic inverse variance methods to synthesize quantitative and pooled data, followed by a leave-one-out method for sensitivity analysis. Results Among the 24,856 participants included, 3433 deaths occurred during the mean follow-up of 6.4 years. In multivariate adjusted Cox models, total (42%), CVD (65%), cerebrovascular (26%) and cancer (52%) mortality risk was greater in individuals with higher potato consumption than those with the lowest intake (p<0.001 for all comparisons). However this link disappeared after adjustment for confounding factors (see Table below). Results from pooling current prospective studies with 73,717 participants revealed a non-significant association between total (RR: 1.25, 0.98–1.60, p=0.066), CVD (RR: 0.99, 0.90–1.08, p=0.845) and stroke mortality (RR: 0.94, 0.85–1.03, p=0.214) with potato consumption. Individuals with a higher potato intake had a less favorable profile of cardiometabolic factors, including greater WC (97.2 vs. 99.5 cm, p<0.001) and a less favorable profile of systolic and diastolic blood pressure, levels of triglycerides (TGs), high-density lipoprotein-cholesterol (HDL-C) and TG/HDL-C ratio (p<0.001 for all comparisons). HRs for mortality across potato intake. Conclusions Our results highlighted the neutral effect of potato intake on long-term mortalities; whereas potato consumption was adversely related to cardiometabolic risk factors. These findings should be taken into consideration for public health strategies, establishing the position for potatoes in the food pyramid. Acknowledgement/Funding None

scholarly journals Cardiac performance and quality of life in patients who have undergone the Fontan procedure with and without prior superior cavopulmonary connection

2012 ◽  
Vol 23 (3) ◽  
pp. 335-343 ◽  
Author(s):  
Andrew M. Atz ◽  
Thomas G. Travison ◽  
Brian W. McCrindle ◽  
Lynn Mahony ◽  
Andrew C. Glatz ◽  
...  
Keyword(s):  
Fontan Procedure ◽  
Cross Sectional Study ◽  
Univentricular Heart ◽  
P Value ◽  
Cross Sectional ◽  
Ventricular Performance ◽  
Cavopulmonary Anastomosis ◽  
Bidirectional Cavopulmonary Anastomosis ◽  
Fontan Surgery ◽  
Cavopulmonary Connection

AbstractBackgroundA superior cavopulmonary connection is commonly performed before the Fontan procedure in patients with a functionally univentricular heart. Data are limited regarding associations between a prior superior cavopulmonary connection and functional and ventricular performance late after the Fontan procedure.MethodsWe compared characteristics of those with and without prior superior cavopulmonary connection among 546 subjects enrolled in the Pediatric Heart Network Fontan Cross-Sectional Study. We further compared different superior cavopulmonary connection techniques: bidirectional cavopulmonary anastomosis (n equals 229), bilateral bidirectional cavopulmonary anastomosis (n equals 39), and hemi-Fontan (n equals 114).ResultsA prior superior cavopulmonary connection was performed in 408 subjects (75%); the proportion differed by year of Fontan surgery and centre (p-value less than 0.0001 for each). The average age at Fontan was similar, 3.5 years in those with superior cavopulmonary connection versus 3.2 years in those without (p-value equals 0.4). The type of superior cavopulmonary connection varied by site (p-value less than 0.001) and was related to the type of Fontan procedure. Exercise performance, echocardiographic variables, and predominant rhythm did not differ by superior cavopulmonary connection status or among superior cavopulmonary connection types. Using a test of interaction, findings did not vary according to an underlying diagnosis of hypoplastic left heart syndrome.ConclusionsAfter controlling for subject and era factors, most long-term outcomes in subjects with a prior superior cavopulmonary connection did not differ substantially from those without this procedure. The type of superior cavopulmonary connection varied significantly by centre, but late outcomes were similar.

the effect of the position of an additional systemic-to-pulmonary shunt on the fluid dynamics of the bidirectional cavo-pulmonary anastomosis

2004 ◽  
Vol 14 (S3) ◽  
pp. 38-43 ◽  
Author(s):  
francesca gervaso ◽  
silvia kull ◽  
giancarlo pennati ◽  
francesco migliavacca ◽  
gabriele dubini ◽  
...  
Keyword(s):  
Pulmonary Stenosis ◽  
Fontan Procedure ◽  
Pulmonary Arteries ◽  
Volume Overload ◽  
Additional Source ◽  
Arteriovenous Fistulas ◽  
Palliative Procedure ◽  
Cavopulmonary Anastomosis ◽  
One Step ◽  
Bidirectional Cavopulmonary Anastomosis

the bidirectional cavo-pulmonary anastomosis is a well-established palliative procedure for patients with a functionally univentricular circulation. it is usually considered one step in preparation for fontan procedure, but it may be performed as a long-term palliation for patients deemed to be at high-risk. in this subset of patients, a valuable surgical option could be to add, or maintain, an additional source of flow of blood to the lungs, either derived from a patent but banded trunk or one protected by native pulmonary stenosis, or a systemic-to-pulmonary arterial shunt. the risk and benefits of providing an additional source of pulmonary flow after construction of a bidirectional cavopulmonary anastomosis are strongly debated. in terms of benefit, the arterial saturation of oxygen is increased due to the greater ratio of pulmonary-to-systemic flow, arteriovenous fistulas are prevented and, as a consequence of the arterial pulsatile flow, the pulmonary arteries are stimulated to grow. the most significant drawbacks are volume overload of the functionally single ventricle, and higher pressures compared to an isolated bidirectional cavopulmonary anastomosis.

scholarly journals Outcomes of the Surgical Management of Atrial Isomerism and Functional Single Ventricle: A Single-Centered Cohort From China

2021 ◽  
Vol 8 ◽  
Author(s):  
Ming-Hui Zou ◽  
Fan Cao ◽  
Li Ma ◽  
Wei-Dan Chen ◽  
Wen-Lei Li ◽  
...  
Keyword(s):  
Risk Factors ◽  
Congenital Heart Disease ◽  
Heart Disease ◽  
Congenital Heart ◽  
Palliative Surgery ◽  
Complex Congenital Heart Disease ◽  
Atrioventricular Valve Regurgitation ◽  
Independent Risk Factors ◽  
Atrial Isomerism ◽  
Anomalous Pulmonary Venous Connection

Objectives: The management of atrial isomerism with complex congenital heart disease remains challenging. Experience has been largely obtained in advanced countries. The clinical diversity is greater in China. We evaluated the early- and medium-term outcomes of surgical treatment of these patients.Methods: We reviewed 86 patients of atrial isomerism with complex congenital heart disease undergoing varied surgeries in our center in 2008–2020. Cox regression models were used to analyze the risk factors for mortality.Results: There were 75 cases of right and 11 of left atrial isomerism. Eighty-three (96.5%) patients underwent single-ventricle staged palliation approach, with 10 early and 7 late deaths. The overall 1-, 5-, and 10-year survival rates were 84.7, 79.3, and 79.3%, respectively. Thirty-six (43.4%) patients completed the Fontan procedure with median age of 48 months and freedom from death or Fontan failure at 1-, 5-, and 8-years were 94.4, 87.4, and 80.7%, respectively. Concomitant total anomalous pulmonary venous connection [hazard ratio (HR): 5.15 (1.95–12.94), p = 0.008], more than moderate atrioventricular valve regurgitation [HR: 4.82 (2.42–6.79), p = 0.003], and the need for first-stage palliative surgery [HR: 4.58 (1.64–10.76), p = 0.015] were independent risk factors for mortality.Conclusions: Despite even greater clinical diversity, the surgical outcomes of atrial isomerism with complex congenital heart disease are improving in China. The early and intermediate outcomes are comparable to many previous reports. Concomitant total anomalous pulmonary venous connection, moderate or severe atrioventricular valve regurgitation, and the need for a first-stage palliative surgery are still independent risk factors for mortality.

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