Totale kavopulmonale Anastomose zur definitiven Palliation komplexer univentrikulärer Kreislaufsysteme – potentielle präoperative Risikofaktoren (Total cavopulmonary anastomosis for definitive palliation in complex univentricular hearts – potential preoperative risk factors)

1997 ◽  
Vol 86 (1) ◽  
pp. 20-25 ◽  
Author(s):  
R. Kaulitz ◽  
H. Hecker ◽  
I. Luhmer ◽  
J. Feickert ◽  
G. Ziemer *, † , H.-C. Kallfelz
Keyword(s):  
Risk Factors ◽  
Preoperative Risk ◽  
Preoperative Risk Factors ◽  
Cavopulmonary Anastomosis ◽  
Total Cavopulmonary Anastomosis

scholarly journals Survival after bidirectional cavopulmonary anastomosis: Analysis of preoperative risk factors

2007 ◽  
Vol 134 (1) ◽  
pp. 82-89.e2 ◽  
Author(s):  
Mark A. Scheurer ◽  
Elizabeth G. Hill ◽  
Nagavardhan Vasuki ◽  
Scott Maurer ◽  
Eric M. Graham ◽  
...  
Keyword(s):  
Risk Factors ◽  
Preoperative Risk ◽  
Preoperative Risk Factors ◽  
Cavopulmonary Anastomosis ◽  
Bidirectional Cavopulmonary Anastomosis

Meniscal Deficiency Period and High Body Mass Index Are Preoperative Risk Factors for Joint Space Narrowing After Meniscal Allograft Transplantation

2021 ◽  
Vol 49 (3) ◽  
pp. 693-699
Author(s):  
Sang-Min Lee ◽  
Seong-Il Bin ◽  
Jong-Min Kim ◽  
Bum-Sik Lee ◽  
Kuen Tak Suh ◽  
...  
Keyword(s):  
Risk Factors ◽  
Femoral Condyle ◽  
Joint Space ◽  
Preoperative Risk ◽  
Meniscal Allograft Transplantation ◽  
Time Points ◽  
Allograft Transplantation ◽  
Preoperative Risk Factors ◽  
Meniscal Allograft ◽  
The Difference

Background: Several studies have reported further reduction in joint space width (JSW) after meniscal allograft transplantation; some contributing postoperative factors are known, although preoperative factors remain unclear. This study is the first to analyze the preoperative risk factors for reduced JSW in patients after lateral meniscal allograft transplantation (LMAT). Hypothesis: Poor cartilage status and high preoperative body mass index (BMI) influence the postoperative progression of joint space narrowing. Study Design: Case-control study; Level of evidence, 3. Methods: We retrospectively studied 79 patients after LMAT who were observed for at least 5 years. JSWs on weightbearing flexion posteroanterior radiographs were measured preoperatively and at the 5-year mark. Differences in JSW were divided into more progression and less progression groups. The modified Outerbridge cartilage grades based on magnetic resonance imaging assessments were compared at subtotal/total meniscectomy and at LMAT to determine the difference between time points. Preoperative between-group differences in sex, age, surgical side, follow-up period, weight, height, BMI, and meniscal deficiency period were analyzed. Clinical outcomes were evaluated using the Lysholm score. Data were examined using univariate and multivariate logistic regressions. Results: Radiographically, the overall change in JSW from preoperative to follow-up was 0.58 mm (range, –0.23 to 1.83 mm). Reductions in JSW in the more progression and less progression groups were 0.94 ± 0.32 and 0.22 ± 0.21 mm (mean ± SD), respectively. There was no difference in cartilage status between the groups at meniscectomy or LMAT; however, changes between time points were significant on the lateral femoral condyle and lateral tibial plateau. Clinically, there were significant differences in weight, BMI, and meniscal deficiency period between the 2 groups. Postoperative Lysholm scores increased as compared with the preoperative scores, but there was no difference among the postoperative time points. In the univariate logistic regression risk analysis, weight, BMI, meniscal deficiency period, and the difference in cartilage status between time points for the lateral femoral condyle and lateral tibial plateau were identified as significant. In the subsequent multivariate logistic regression, BMI (odds ratio, 1.45; P = .016) and meniscal deficiency period (odds ratio, 1.21; P = .037) were the statistically significant factors. Conclusion: BMI and meniscal deficiency period were preoperative risk factors for JSW narrowing after LMAT. This suggests that the meniscal deficiency period from meniscectomy to LMAT may be shortened and that proper weight management can lead to successful LMAT.

scholarly journals Preoperative risk factors for postoperative blood transfusion after hip fracture surgery: establishment of a nomogram

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Fu Cheng Bian ◽  
Xiao Kang Cheng ◽  
Yong Sheng An
Keyword(s):  
Risk Factors ◽  
Regression Analysis ◽  
Hip Fracture ◽  
Blood Transfusion ◽  
Multivariate Logistic Regression ◽  
Preoperative Risk ◽  
Hip Fracture Surgery ◽  
Preoperative Risk Factors ◽  
Independent Risk Factors ◽  
Fracture Surgery

Abstract Background This study aimed to explore the preoperative risk factors related to blood transfusion after hip fracture operations and to establish a nomogram prediction model. The application of this model will likely reduce unnecessary transfusions and avoid wasting blood products. Methods This was a retrospective analysis of all patients undergoing hip fracture surgery from January 2013 to January 2020. Univariate and multivariate logistic regression analyses were used to evaluate the association between preoperative risk factors and blood transfusion after hip fracture operations. Finally, the risk factors obtained from the multivariate regression analysis were used to establish the nomogram model. The validation of the nomogram was assessed by the concordance index (C-index), the receiver operating characteristic (ROC) curve, decision curve analysis (DCA), and calibration curves. Results A total of 820 patients were included in the present study for evaluation. Multivariate logistic regression analysis demonstrated that low preoperative hemoglobin (Hb), general anesthesia (GA), non-use of tranexamic acid (TXA), and older age were independent risk factors for blood transfusion after hip fracture operation. The C-index of this model was 0.86 (95% CI, 0.83–0.89). Internal validation proved the nomogram model’s adequacy and accuracy, and the results showed that the predicted value agreed well with the actual values. Conclusions A nomogram model was developed based on independent risk factors for blood transfusion after hip fracture surgery. Preoperative intervention can effectively reduce the incidence of blood transfusion after hip fracture operations.

Preoperative risk factors for conversion and learning curve of minimally invasive distal pancreatectomy

Surgery ◽  
2017 ◽  
Vol 162 (5) ◽  
pp. 1040-1047 ◽  
Author(s):  
Yongfei Hua ◽  
Ammar A. Javed ◽  
Richard A. Burkhart ◽  
Martin A. Makary ◽  
Matthew J. Weiss ◽  
...  
Keyword(s):  
Risk Factors ◽  
Minimally Invasive ◽  
Learning Curve ◽  
Distal Pancreatectomy ◽  
Preoperative Risk ◽  
Preoperative Risk Factors

scholarly journals Preoperative risk factors of malnutrition for cardiac surgery patients

2016 ◽  
Vol 23 (2) ◽  
pp. 99-109 ◽  
Author(s):  
Donata Ringaitienė ◽  
Dalia Gineitytė ◽  
Vaidas Vicka ◽  
Tadas Žvirblis ◽  
Jūratė Šipylaitė ◽  
...  
Keyword(s):  
Risk Factors ◽  
Cardiac Surgery ◽  
Bioelectrical Impedance ◽  
Impedance Analysis ◽  
Preoperative Risk ◽  
Related Factors ◽  
Laboratory Findings ◽  
Logistic Regression Models ◽  
Preoperative Risk Factors ◽  
Valve Pathology

Background. Malnutrition (MN) is prevalent in cardiac surgery, but there are no specific preoperative risk factors of MN. The aim of this study is to assess the clinically relevant risk factors of MN for cardiac surgery patients. Materials and methods. The nutritional state of the patients was evaluated one day prior to surgery using a bioelectrical impedance analysis phase angle (PA). Two groups of patients were generated according to low PA: malnourished and well nourished. Risk factors of MN were divided into three clinically relevant groups: psychosocial and lifestyle factors, laboratory findings and disease-associated factors. Variables in each different group were entered into separate multivariate logistic regression models. Results. A total of 712 patients were included in the study. The majority of them were 65-year old men after a CABG procedure. Low PA was present in 22.9% (163) of patients. The analysis of disease-related factors of MN revealed the importance of heart functions (NYHA IV class OR: 3.073, CI95%: 1.416–6.668, p = 0.007), valve pathology (OR: 1.825, CI95%: 1.182–2.819, p = 0.007), renal insufficiency (OR: 4.091, CI95%: 1.995–8.389, p 

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