Purpose:This study sought to explore the effect of intraoperative mean blood glucose levels and variability on postoperative acute kidney injury(AKI)in children undergoing congenital cardiac surgery.Methods:We conduct...Purpose:This study sought to explore the effect of intraoperative mean blood glucose levels and variability on postoperative acute kidney injury(AKI)in children undergoing congenital cardiac surgery.Methods:We conducted a prospective nested case-control study in children(age<18 years)undergoing congenital heart surgery with cardiopulmonary bypass(CPB)at the Fuwai Hospital between April 01,2022 and July 30,2022.Cases were individuals who developed AKI within the first postoperative 7 days(AKI group)and controls were those without AKI(Non-AKI group)according to KDIGO criteria.AKI and Non-AKI groups unmatched and 1:1 matched by age,sex,and baseline serum creatinine were separately analyzed.Multivariate logistic and conditional logistic regressions were used to assess the associations between blood glucose variables and AKI.Results:688 consecutively approached patients were included in the final analysis.On multivariate analysis,intra-CPB(adjusted odds ratio[OR]0.802;95%confidence interval[CI],0.706 to 0.912;p=0.001)and post-CPB(adjusted OR 0.830;95%CI,0.744 to 0.925;p=0.001)blood glucose levels were associated with postoperative AKI.There were no significant differences in pre-CPB blood glucose(adjusted OR 0.926;95%CI,0.759 to 1.129;p=0.446)or intraoperative glycemic fluctuations(adjusted OR 0.905;95%CI,0.723 to 1.132;p=0.382)between AKI and Non-AKI groups.Results based on matched cases and controls were consistent with those from the unmatched analyses.Conclusion:Higher intraoperative blood glucose levels during and after CPB were protective factors against postoperative AKI in pediatric patients after congenital heart surgery.展开更多
A 75-year-old male patient had stable angina pectoris After coronary angiography we decided to perform a coronary artery bypass graft surgery. Twenty years ago the patient underwent radical cystectomy and bilateral ur...A 75-year-old male patient had stable angina pectoris After coronary angiography we decided to perform a coronary artery bypass graft surgery. Twenty years ago the patient underwent radical cystectomy and bilateral ureterosigmoidostomy because of bladder cancer After that, his micturition was via the rectum. We did not experience that before. As is known, monitoring of urine output is very important after cardiac surgery The patient was consulted with an urologist for how to monitor urine output in him. Transrectal catheterization was recommended for our follow-up, but before the catheterization bowel cleansing is necessary. Four-vessel on-pump coronary artery bypass graft surgery was performed without any problem. Peroperative urine volume and arterial blood gas results were normal. Urine output is a sensitive variable reflecting the patient's effective blood volume and tissue perfusion. Urinary catheterization is a standard for all cardiac surgeries and it allows the patients' urine to drain freely from the bladder for collection. Monitoring of urine output in patients with ureterosigmoidostomy is impossible by standard urinary catheterization method. In this casewe performed transrectal catheterization for Urine flow follow-up. Urine flow follow-up is essential after the open-heart surgery and it can be measured in different ways, as in our case.展开更多
Objective: To compare the clinical outcomes of minimally invasive right subaxillary vertical thoracotomy and traditional median stemotomy through right atrium in treatment of common congenital heart diseases. Methods:...Objective: To compare the clinical outcomes of minimally invasive right subaxillary vertical thoracotomy and traditional median stemotomy through right atrium in treatment of common congenital heart diseases. Methods: Clinical data of 59 cases of common congenital heart diseases treated with minimally invasive right axillary vertical thoracotomy from May, 2011 to February, 2013 and 77 cases of same diseases with traditional median stemotomy in the past three years were retrospectively analyzed, including atrial septal defect, membranous ventricular septal defect and partial endocardial cushion defect. The results were compared from the two groups, including the time for operation and cardiopulmonary bypass, amount of blood transfusion, postoperative drainage, ventilation time, hospital stay, and prognosis. Results: No severe complications happened in both groups, like deaths or secondary surgery caused by bleeding. No significant differences were in CPB time and postoperative ventilator time between groups (P>0.05), while for all of the operative time, the length of incision, postoperative drainage and hospital stay, minimally invasive right axillary vertical thoracotomy was superior to median stemotomy, with statistically significant differences (P<0.05). In six month followup after operation, no complications of residual deformity and pericardial effusion were found in both groups by doing echocardiography, but mild pectus carinatum was found in 8 patients in the traditional median sternotomy group (traditional group), whereas patients in another group were well recovered. Conclusions: Minimally invasive right subaxillary vertical thoracotomy for common congenital heart diseases is as safe as traditional median stemotomy, without the increasing incidence of postoperative complications. Additionally, compared with traditional median stemotomy, minimally - invasive right subaxillary vertical thoracotomy is better in the aspects of hidden incision, appearance, and postoperative recovery.展开更多
The development of the heart-lung machine made repair of intracardiac lesions possible. One of the key requirements of the heart-lung machine was anticoagulation. Heparin was discovered by a medical student, Jay McLea...The development of the heart-lung machine made repair of intracardiac lesions possible. One of the key requirements of the heart-lung machine was anticoagulation. Heparin was discovered by a medical student, Jay McLean, working in the laboratory of Dr. William Howell at Johns Hopkins. John Gibbon contributed more to the successful development of the heart-lung machine than anyone else. His interest began as a young doctor since 1930s. Gibbon's work on the heart-lung machine took place over the next 20 years in laboratories at Massachusetts General Hospital, the University of Pennsylvania, and Thomas Jefferson University In 1937, he reported the first successful demonstration that life could be maintained by an artificial heart and lung, and the native heart and lungs could resume fimction. After World War II, Dr. Gibbon resumed his work and received support from IBM to build a heart-lung machine on a more sophisticated scale. Eventually, the team developed a larger oxygenator that the IBM engineers incorporated into a new machine. On May 6, 1953, Dr. Gibbon performed the first successful operation using an extracorporeal circuit on an 18-year-old girl with a large atrial septal defect. It wasn't until 1958, when a system that involved bubbling blood was perfected, that "heart-lung" machines came of age. Despite so many chill winds and cold rains, "heart-lung" machine, the budding rose of surgery, was eventually blossom brightly in the radiant rays of sunlight. John Gibbon's dream had become a reality. His work serves as an important example to surgeons who are struggling today with the surgical therapies and technologies of tomorrow.展开更多
Objective To explore the effects of ultrafiltration technique in preventing and relieving pulmonary injury in children undergoing open heart surgery and cardiopulmonary bypass (CPB). Methods Thirty cases with congenit...Objective To explore the effects of ultrafiltration technique in preventing and relieving pulmonary injury in children undergoing open heart surgery and cardiopulmonary bypass (CPB). Methods Thirty cases with congenital heart defects were divided into a control group and an experimental group. In the control group,conventional cardiopulmonary bypass was used without ultrafiltration; while in the experimental group,cardiopulmonary bypass with balanced ultrafiltration and modified ultrafiltration were used. Pulmonary static compliance (C stat ),airway resistance (R aw ),alveolar-arterial oxygen difference (A-a DO 2),hematocrit (HCT),serum albumin (Alb),interleukin-6 (IL-6),endothelia-1 (ET-1) and thromboxane (TXB 2) were measured. Results The pulmonary function was improved,HCT and serum albumin concentrations were increased,and some harmful medium-size solutes were decreased in the experimental groups compared with the control group.Conclusions Combination of balanced ultrafiltration with modified ultrafiltration can effectively concentrate blood,exclude harmful inflammatory mediators,and attenuate lung edema and inflammatory responsive pulmonary injury.展开更多
Objective: To comparatively study the different effects of open heart surgery on brain tissues of patients with congenital and rheumatic heart disease. Methods: Forty patients with congenital heart disease (CHD, CHD g...Objective: To comparatively study the different effects of open heart surgery on brain tissues of patients with congenital and rheumatic heart disease. Methods: Forty patients with congenital heart disease (CHD, CHD group, n=20) or rheumatic heart disease (RHD, RHD group, n=20) underwent on-pump (cardiopulmonary bypass, CPB) heart-beating open heart surgery. Blood samples before CPB, and 20 minutes, 1 hour, 24 hours and 7 days after CPB were collected, and the levels of neuron-specific enolase (NSE) and protein S-100b in the plasma were determined with enzyme-linked immunoadsorbent assay (ELISA), respectively. All the patients were examined with electroencephalogram (EEG) before and 1 week after operation. The changes of NSE, S-100b and EEG compared to verify the difference of postoperative cerebral injury between CHD cases and RHD cases. Results: The plasma level of S-100b increased significantly 20 minutes after CPB and was still higher than the preoperative level at 24 hours after operation in both groups (P< 0.01). The plasma level of NSE increased more significantly in the CHD group than in the RHD group 20 minutes after CPB and it returned to the normal level 24 hours after CPB in the CHD group but remained at a high level in the RHD group (P< 0.01). The levels of NSE and S-100b returned to the normal levels on the 7th day after CPB. Abnormal EEG was found in 75% of the patients in the CHD group and 60% in the RHD group. Conclusions: On-pump heart-beating open heart surgery can cause certain cerebral injury in the patients with CHD or RHD. The injury was more severe and recovered more quickly in the CHD group than in the RHD group.展开更多
There is increasing concern about the safety of homologous blood transfusion during cardiac surgery,and a restrictive transfusion practice is associated with improved outcome.Transfusion-free pediatric cardiac surgery...There is increasing concern about the safety of homologous blood transfusion during cardiac surgery,and a restrictive transfusion practice is associated with improved outcome.Transfusion-free pediatric cardiac surgery is unrealistic for the vast majority of procedures in neonates or small infants;however,considerable progress has been made by using techniques that decrease the need for homologous blood products or even allow bloodless surgery in older infants and children.These techniques involve a decrease in prime volume by downsizing the bypass circuit with the help of vacuumassisted venous drainage,microplegia,autologous blood predonation with or without infusion of recombinant(erythropoietin),cell salvaging,ultrafiltration and retrograde autologous priming.The three major techniques which are simple,safe,efficient,and cost-effective are:a prime volume as small as possible,cardioplegia with negligible hydric balance and circuit residual blood salvaged without any alteration.Furthermore,these three techniques can be used for all the patients,including emergencies and small babies.In every pediatric surgical unit,a strategy to decrease or avoid blood bank transfusion must be implemented.A strategy to minimize transfusion requirement requires a combined effort involving the entire surgical team with pre-,peri-,and postoperative planning and management.展开更多
Background: Acute kidney injury (AKI) is a severe common postoperative complication of cardiac surgery (CS). It increases the risk of mortality by up to 80%. Therefore, it is essential to have preoperative risk evalua...Background: Acute kidney injury (AKI) is a severe common postoperative complication of cardiac surgery (CS). It increases the risk of mortality by up to 80%. Therefore, it is essential to have preoperative risk evaluation tools. Frailty is a marker of deterioration of physiologic systems and may be associated with AKI. Purpose: The study aimed to determine the utility of frailty as a predictor of AKI after CS. Method: We enrolled 91 patients undergoing CS with cardiopulmonary bypass to determine if they had frailty before surgery and were associated with postoperative AKI. The diagnosis of postoperative AKI was based on the serum creatinine criteria of the Acute Kidney Injury Network classification up to 7 days following CS. Results: The incidence of postoperative AKI was 62% in the frail group and 21% in the non-frail group. Frailty was associated with a higher risk of AKI (relative risk [RR] = 3.00, 95% CI 1.56 - 5.77, p = 0.00). In regression models, there were associations between frailty and postoperative AKI. Conclusion: This study demonstrated that frailty could be a predictor for post-CS AKI. Therefore, frailty assessment should become an essential part of the preoperative evaluation to help the anesthesiologist to estimate the surgical risk and develop preoperative and transoperative strategies to preserve the renal function and improve the cardiac surgery outcome.展开更多
Background The neutrophil-to-lymphocyte ratio(NLR)stands as a valuable marker for assessing inflammation and predicting adverse outcomes post-cardiac surgery.This study aimed to ascertain the prognostic relevance of p...Background The neutrophil-to-lymphocyte ratio(NLR)stands as a valuable marker for assessing inflammation and predicting adverse outcomes post-cardiac surgery.This study aimed to ascertain the prognostic relevance of preoperative NLR concerning prolonged ICU stay among infants undergoing congenital heart surgery employing cardiopulmonary bypass.Methods A retrospective review was conducted involving 187 consecutive infants(≤1 year)who underwent congenital heart disease surgery between January and April 2019,stratified into two groups based on NLR(NLR<0.484,NLR≥0.484).The primary outcome was prolonged intensive care unit(ICU)length of stay,defined patients with ICU stays duration higher than the third quartile.Correlations between preoperative NLR and clinical outcomes were assessed.Receiver operating characteristic curve analysis,multivariable Logistic regression,and restricted cube plots were utilized to gauge the association of preoperative NLR with prolonged ICU stay.Results The area under the receiver operating characteristic curve of NLRpredictive capability for prolonged ICU length of staywas 0.691.Subgroup analyses revealed poorer prognoses among patients with high NLR(≥0.484).Multivariable Logistic regression analysis indicated that heightened preoperative NLR(OR:2.63,95%CI:1.18-5.83,P=0.018)independently was correlated with prolonged ICU length of stay in infants'post-cardiac surgery.Conclusions In summary,the NLR emerges as a significant predictive factor for prolonged ICU stay in infants undergoing cardiac surgery.Nevertheless,further research is warranted to comprehensively grasp the relationship between the NLR and prolonged ICU stay.展开更多
基金the CAMS Innovation Fund for Medical Sciences(CIFMS)(2021-I2M-C&T-B-036).
文摘Purpose:This study sought to explore the effect of intraoperative mean blood glucose levels and variability on postoperative acute kidney injury(AKI)in children undergoing congenital cardiac surgery.Methods:We conducted a prospective nested case-control study in children(age<18 years)undergoing congenital heart surgery with cardiopulmonary bypass(CPB)at the Fuwai Hospital between April 01,2022 and July 30,2022.Cases were individuals who developed AKI within the first postoperative 7 days(AKI group)and controls were those without AKI(Non-AKI group)according to KDIGO criteria.AKI and Non-AKI groups unmatched and 1:1 matched by age,sex,and baseline serum creatinine were separately analyzed.Multivariate logistic and conditional logistic regressions were used to assess the associations between blood glucose variables and AKI.Results:688 consecutively approached patients were included in the final analysis.On multivariate analysis,intra-CPB(adjusted odds ratio[OR]0.802;95%confidence interval[CI],0.706 to 0.912;p=0.001)and post-CPB(adjusted OR 0.830;95%CI,0.744 to 0.925;p=0.001)blood glucose levels were associated with postoperative AKI.There were no significant differences in pre-CPB blood glucose(adjusted OR 0.926;95%CI,0.759 to 1.129;p=0.446)or intraoperative glycemic fluctuations(adjusted OR 0.905;95%CI,0.723 to 1.132;p=0.382)between AKI and Non-AKI groups.Results based on matched cases and controls were consistent with those from the unmatched analyses.Conclusion:Higher intraoperative blood glucose levels during and after CPB were protective factors against postoperative AKI in pediatric patients after congenital heart surgery.
文摘A 75-year-old male patient had stable angina pectoris After coronary angiography we decided to perform a coronary artery bypass graft surgery. Twenty years ago the patient underwent radical cystectomy and bilateral ureterosigmoidostomy because of bladder cancer After that, his micturition was via the rectum. We did not experience that before. As is known, monitoring of urine output is very important after cardiac surgery The patient was consulted with an urologist for how to monitor urine output in him. Transrectal catheterization was recommended for our follow-up, but before the catheterization bowel cleansing is necessary. Four-vessel on-pump coronary artery bypass graft surgery was performed without any problem. Peroperative urine volume and arterial blood gas results were normal. Urine output is a sensitive variable reflecting the patient's effective blood volume and tissue perfusion. Urinary catheterization is a standard for all cardiac surgeries and it allows the patients' urine to drain freely from the bladder for collection. Monitoring of urine output in patients with ureterosigmoidostomy is impossible by standard urinary catheterization method. In this casewe performed transrectal catheterization for Urine flow follow-up. Urine flow follow-up is essential after the open-heart surgery and it can be measured in different ways, as in our case.
基金supported by college medical journal clinicalspecial funds(11321587)
文摘Objective: To compare the clinical outcomes of minimally invasive right subaxillary vertical thoracotomy and traditional median stemotomy through right atrium in treatment of common congenital heart diseases. Methods: Clinical data of 59 cases of common congenital heart diseases treated with minimally invasive right axillary vertical thoracotomy from May, 2011 to February, 2013 and 77 cases of same diseases with traditional median stemotomy in the past three years were retrospectively analyzed, including atrial septal defect, membranous ventricular septal defect and partial endocardial cushion defect. The results were compared from the two groups, including the time for operation and cardiopulmonary bypass, amount of blood transfusion, postoperative drainage, ventilation time, hospital stay, and prognosis. Results: No severe complications happened in both groups, like deaths or secondary surgery caused by bleeding. No significant differences were in CPB time and postoperative ventilator time between groups (P>0.05), while for all of the operative time, the length of incision, postoperative drainage and hospital stay, minimally invasive right axillary vertical thoracotomy was superior to median stemotomy, with statistically significant differences (P<0.05). In six month followup after operation, no complications of residual deformity and pericardial effusion were found in both groups by doing echocardiography, but mild pectus carinatum was found in 8 patients in the traditional median sternotomy group (traditional group), whereas patients in another group were well recovered. Conclusions: Minimally invasive right subaxillary vertical thoracotomy for common congenital heart diseases is as safe as traditional median stemotomy, without the increasing incidence of postoperative complications. Additionally, compared with traditional median stemotomy, minimally - invasive right subaxillary vertical thoracotomy is better in the aspects of hidden incision, appearance, and postoperative recovery.
文摘The development of the heart-lung machine made repair of intracardiac lesions possible. One of the key requirements of the heart-lung machine was anticoagulation. Heparin was discovered by a medical student, Jay McLean, working in the laboratory of Dr. William Howell at Johns Hopkins. John Gibbon contributed more to the successful development of the heart-lung machine than anyone else. His interest began as a young doctor since 1930s. Gibbon's work on the heart-lung machine took place over the next 20 years in laboratories at Massachusetts General Hospital, the University of Pennsylvania, and Thomas Jefferson University In 1937, he reported the first successful demonstration that life could be maintained by an artificial heart and lung, and the native heart and lungs could resume fimction. After World War II, Dr. Gibbon resumed his work and received support from IBM to build a heart-lung machine on a more sophisticated scale. Eventually, the team developed a larger oxygenator that the IBM engineers incorporated into a new machine. On May 6, 1953, Dr. Gibbon performed the first successful operation using an extracorporeal circuit on an 18-year-old girl with a large atrial septal defect. It wasn't until 1958, when a system that involved bubbling blood was perfected, that "heart-lung" machines came of age. Despite so many chill winds and cold rains, "heart-lung" machine, the budding rose of surgery, was eventually blossom brightly in the radiant rays of sunlight. John Gibbon's dream had become a reality. His work serves as an important example to surgeons who are struggling today with the surgical therapies and technologies of tomorrow.
基金ThisresearchwassupportedbyagrantfromtheNationalNaturalScienceFoundationofChina (No 3 0 170 92 9)
文摘Objective To explore the effects of ultrafiltration technique in preventing and relieving pulmonary injury in children undergoing open heart surgery and cardiopulmonary bypass (CPB). Methods Thirty cases with congenital heart defects were divided into a control group and an experimental group. In the control group,conventional cardiopulmonary bypass was used without ultrafiltration; while in the experimental group,cardiopulmonary bypass with balanced ultrafiltration and modified ultrafiltration were used. Pulmonary static compliance (C stat ),airway resistance (R aw ),alveolar-arterial oxygen difference (A-a DO 2),hematocrit (HCT),serum albumin (Alb),interleukin-6 (IL-6),endothelia-1 (ET-1) and thromboxane (TXB 2) were measured. Results The pulmonary function was improved,HCT and serum albumin concentrations were increased,and some harmful medium-size solutes were decreased in the experimental groups compared with the control group.Conclusions Combination of balanced ultrafiltration with modified ultrafiltration can effectively concentrate blood,exclude harmful inflammatory mediators,and attenuate lung edema and inflammatory responsive pulmonary injury.
文摘Objective: To comparatively study the different effects of open heart surgery on brain tissues of patients with congenital and rheumatic heart disease. Methods: Forty patients with congenital heart disease (CHD, CHD group, n=20) or rheumatic heart disease (RHD, RHD group, n=20) underwent on-pump (cardiopulmonary bypass, CPB) heart-beating open heart surgery. Blood samples before CPB, and 20 minutes, 1 hour, 24 hours and 7 days after CPB were collected, and the levels of neuron-specific enolase (NSE) and protein S-100b in the plasma were determined with enzyme-linked immunoadsorbent assay (ELISA), respectively. All the patients were examined with electroencephalogram (EEG) before and 1 week after operation. The changes of NSE, S-100b and EEG compared to verify the difference of postoperative cerebral injury between CHD cases and RHD cases. Results: The plasma level of S-100b increased significantly 20 minutes after CPB and was still higher than the preoperative level at 24 hours after operation in both groups (P< 0.01). The plasma level of NSE increased more significantly in the CHD group than in the RHD group 20 minutes after CPB and it returned to the normal level 24 hours after CPB in the CHD group but remained at a high level in the RHD group (P< 0.01). The levels of NSE and S-100b returned to the normal levels on the 7th day after CPB. Abnormal EEG was found in 75% of the patients in the CHD group and 60% in the RHD group. Conclusions: On-pump heart-beating open heart surgery can cause certain cerebral injury in the patients with CHD or RHD. The injury was more severe and recovered more quickly in the CHD group than in the RHD group.
文摘There is increasing concern about the safety of homologous blood transfusion during cardiac surgery,and a restrictive transfusion practice is associated with improved outcome.Transfusion-free pediatric cardiac surgery is unrealistic for the vast majority of procedures in neonates or small infants;however,considerable progress has been made by using techniques that decrease the need for homologous blood products or even allow bloodless surgery in older infants and children.These techniques involve a decrease in prime volume by downsizing the bypass circuit with the help of vacuumassisted venous drainage,microplegia,autologous blood predonation with or without infusion of recombinant(erythropoietin),cell salvaging,ultrafiltration and retrograde autologous priming.The three major techniques which are simple,safe,efficient,and cost-effective are:a prime volume as small as possible,cardioplegia with negligible hydric balance and circuit residual blood salvaged without any alteration.Furthermore,these three techniques can be used for all the patients,including emergencies and small babies.In every pediatric surgical unit,a strategy to decrease or avoid blood bank transfusion must be implemented.A strategy to minimize transfusion requirement requires a combined effort involving the entire surgical team with pre-,peri-,and postoperative planning and management.
文摘Background: Acute kidney injury (AKI) is a severe common postoperative complication of cardiac surgery (CS). It increases the risk of mortality by up to 80%. Therefore, it is essential to have preoperative risk evaluation tools. Frailty is a marker of deterioration of physiologic systems and may be associated with AKI. Purpose: The study aimed to determine the utility of frailty as a predictor of AKI after CS. Method: We enrolled 91 patients undergoing CS with cardiopulmonary bypass to determine if they had frailty before surgery and were associated with postoperative AKI. The diagnosis of postoperative AKI was based on the serum creatinine criteria of the Acute Kidney Injury Network classification up to 7 days following CS. Results: The incidence of postoperative AKI was 62% in the frail group and 21% in the non-frail group. Frailty was associated with a higher risk of AKI (relative risk [RR] = 3.00, 95% CI 1.56 - 5.77, p = 0.00). In regression models, there were associations between frailty and postoperative AKI. Conclusion: This study demonstrated that frailty could be a predictor for post-CS AKI. Therefore, frailty assessment should become an essential part of the preoperative evaluation to help the anesthesiologist to estimate the surgical risk and develop preoperative and transoperative strategies to preserve the renal function and improve the cardiac surgery outcome.
文摘Background The neutrophil-to-lymphocyte ratio(NLR)stands as a valuable marker for assessing inflammation and predicting adverse outcomes post-cardiac surgery.This study aimed to ascertain the prognostic relevance of preoperative NLR concerning prolonged ICU stay among infants undergoing congenital heart surgery employing cardiopulmonary bypass.Methods A retrospective review was conducted involving 187 consecutive infants(≤1 year)who underwent congenital heart disease surgery between January and April 2019,stratified into two groups based on NLR(NLR<0.484,NLR≥0.484).The primary outcome was prolonged intensive care unit(ICU)length of stay,defined patients with ICU stays duration higher than the third quartile.Correlations between preoperative NLR and clinical outcomes were assessed.Receiver operating characteristic curve analysis,multivariable Logistic regression,and restricted cube plots were utilized to gauge the association of preoperative NLR with prolonged ICU stay.Results The area under the receiver operating characteristic curve of NLRpredictive capability for prolonged ICU length of staywas 0.691.Subgroup analyses revealed poorer prognoses among patients with high NLR(≥0.484).Multivariable Logistic regression analysis indicated that heightened preoperative NLR(OR:2.63,95%CI:1.18-5.83,P=0.018)independently was correlated with prolonged ICU length of stay in infants'post-cardiac surgery.Conclusions In summary,the NLR emerges as a significant predictive factor for prolonged ICU stay in infants undergoing cardiac surgery.Nevertheless,further research is warranted to comprehensively grasp the relationship between the NLR and prolonged ICU stay.