Cardiovascular Surgery Department Research Articles

Early Mortality in Cardiac Surgery - Is Lactate Significant?

Serum lactate is a consequence of tissue hypoperfusion and has been used routinely for patient management following cardiac surgery. This study aims to determine the association of lactate with early mortality and postoperative morbidity. This is a prospective cohort study carried out in the Department of Cardiovascular and Thoracic Surgery, King George's Medical University (India), from January 2020 to December 2022. A total of 270 patients were included in this study. Serum lactate levels were measured preoperatively, intraoperatively on-pump, coming off-pump, and at six, 12, 24, and 48 hours postoperatively. Early mortality was noted in 17 cases (6.3%). While both lactate and lactate clearance correlated with duration of mechanical ventilation, vasopressor duration, and intensive care unit and hospital stay, correlation with early mortality was noted only with lactate at 24 hours. Logistic regression analysis demonstrated that lactate levels at preoperative period (adjusted odds ratio [OR] 4.76 [1.67-13.59], P=0.004) and at 24 hours after bypass (OR 1.21 [1.00-1.47], P=0.046) and vasopressor duration (OR 1.11 [1.04-1.19], P=0.002) are independent predictors of mortality. Receiver operating characteristic curve analysis showed that arterial lactate on-pump, off-pump, and at six, 12, and 24 hours after surgery had significant area under the curve for predicting mortality. Arterial lactate and lactate clearance show good correlation with duration of mechanical ventilation, vasopressor support, and intensive care unit and hospital stay and can serve as a good indicator to guide therapeutic decisions in postoperative period. However, it fails to be a sensitive predictor of mortality.

Intervention Effect of the Mobile Phone APP Based Continuous Care on Patients after Mechanical Heart Valve Replacement: A Randomised Controlled Trials.

To determine the effect of continuous care based on mobile application on patients' quality of life and self-care ability after mechanical heart valve replacement. Ninety patients who underwent cardiac mechanical valve replacement in the cardiovascular surgery department of a tertiary general hospital in Guizhou Province from September 2020 to January 2022 were selected for the study. The subjects were randomly divided into a control group and an intervention group using the SPSS25.0 software, with 45 patients in the two groups. The control group received routine nursing care during hospitalization, health education the day before discharge, and regular telephone and outpatient follow-up 6 months after discharge. Based on the control group's care, the intervention group received Mobile APP continuous care for 6 months. The effectiveness of patient's quality of life, medication adherence, international normalized ratio (INR) value compliance rates and self-care ability following mechanical heart valve replacement were evaluated the day before discharge and at the 1, 3 and 6 months after discharge. Scores of quality of life, warfarin medication adherence, and self-care ability rose considerably in the intervention group compared to the control group, and the differences were statistically significant. The mobile phone application (APP) 's continuity of care could improve patients' quality of life, medication adherence, INR value compliance rates, and self-care ability. No: ChiCTR2400081250. Registered 27 February, 2024, https://www.chictr.org.cn.

Prevalence of frailty and associated factors in coronary artery bypass graft surgery patients

Abstract Background Frail patients are at increased risk for postoperative delirium, complications, delayed recovery, prolonged hospital and intensive care unit stay, morbidity and mortality. The number of studies examining frailty in cardiovascular surgery patients is limited (1,2). In this context, it is important to determine the prevalence of frailty in cardiac surgery patients (3,4). Purpose This research was conducted to examine the prevalence of frailty in coronary artery bypass graft surgery patients and associated factors with frailty. Methods The research was descriptive cross-sectional type. It was conducted between 18.02.2021 and 18.02.2022 at the cardiovascular surgery department of a training and research hospital in Turkey. A total of 96 patients who had undergone coronary artery bypass graft (CABG) were included. The "Sociodemographic and Clinical Data Form" which was prepared in accordance with the literature, the "Modified Fried Frailty Index", the "Mini Nutritional Assessment Test-Short Form", the "Barthel Daily Living Activities Index", the "Charlson Comorbidity Index", and the "Montreal Cognitive Assessment Scale" were used to collect data. The data were analyzed using the SPSS 23.0 package program. Descriptive statistics, Kolmogorov-Smirnov test, Chi-square test, One Way ANOVA, Kruskal Wallis test and multinomial logistic regression analysis were used in the evaluation of the data. Results As a result of the study, the mean age of the patients was 65.65±8.72 years (min:40-max:85), 62.5% consisted of males. The majority of patients (94.8%) had comorbid diseases, most of whom had hypertension (66.7%) and diabetes mellitus (63.5%). The mean ejection fraction of the patients was normal (54.59±8.70) according to the European Society of Cardiology and the majority (80.2%) were in the preserved LVEF group. The mean EuroSCORE was intermediate (4.79±2.40) and 49% of the patients were at intermediate risk for mortality. The majority of the patients (94.8%) were in the ASA III class according to the American Society of Anaesthesiologists. Of the patients. 14.6% were determined as ‘non-frail’, 45.8% as ‘pre-frail’ and 39.6% as ‘frail’. Age, educational status, income level, beta-blocker use, nutritional status, daily living activities, cognitive status, number of comorbidities, and level of potassium, procalcitonin and creatinine were found to be associated with frailty (p<0.05). Malnutrition, decreased daily living activity, cognitive impairment and creatinine elevation were found to be predictors of frailty (p<0.05). Sociodemographic and Clinical Characteristics by Frailty Status was presented in Table 1. Conclusions More than a third of CABG patients were frail. Malnutrition, decreased daily living activity, impaired cognitive status and high creatinine levels increased the risk. It is important to assesment frail cardiac surgery patients and provide them with appropriate nursing management.

Lived experiences of frail patients undergoing coronary artery bypass grafting: a phenomenological study

Abstract Background Frailty is an important issue in cardiovascular surgery. To provide individualised care to the needs of frail patients undergoing coronary artery bypass graft (CABG) surgery, it is needed to determine the patients' surgical experiences. Qualitative studies examining the experiences of frail patients undergoing surgery are limited (1,2). In addition, there is no study examining the surgical experiences of frail patients undergoing CABG surgery in our country. Purpose To examine frail patients' lived experiences of CABG surgery in early period. Methods In this qualitative study, a phenomenological approach was used. The study was conducted between 28.06.2021 and 18.02.2022 at the cardiovascular surgery department of a training and research hospital in Turkey. The study sample consisted of 14 patients who had CABG surgery and were determined to be frail in the preoperative period using the Modified Fried Frailty Index. Criterion sampling method, one of the purposeful sampling methods, was used in sample selection. The "Semi-Structured Interview Form" was used to collect the data. Data collection was carried out in the early pre-discharge period. The interviews were audio recorded and transcribed verbatim. The data were analysed using the MAXQDA 2020 program. Content analysis and thematic analysis were used in the analysis of the data. Results The mean age of the patients was 65.6±8.84 (min:45-max:76) years. Nine of the patients were female, 13 were married, 13 were primary school graduates, and 9 were lived together with a partner. Thirteen of the patients had comorbid diseases, 12 had hypertension and 11 had diabetes mellitus. The mean length of hospital stay was 19.79 days±5.59 and the mean length of stay in the intensive care unit was 8.64 days±4.46 days. 13 patients had postoperative complications. Four main themes were identified: i) "problems", ii) "coping", iii) "perceptions toward CABG" and iv) "expectations", in addition to nine sub-themes related to these main themes. Pain, postoperative complications such as bleeding, shortness of breath, infection, fear and anxiety were the most frequently expressed problems. The importance of support from health care professionals and family members was emphasised the most in terms of coping. In the theme of perception toward surgery, the surgical process being more difficult than expected and postoperative relief were the most mentioned issues. When the expectations of patients were examined, the importance of effective communication during the surgical process was highlighted the most. Conclusions Frail patients had both positive and negative experiences in the postoperative period, highlighting the significance of effective nursing care. The individualised patient-specific nursing care was required. Cardiovascular surgery nurses should evaluate patients in terms of frailty and consider the frailty status of patients while providing care.

Investigation of burnout and quality of work life of cardiac surgery nurses: A cross-sectional study.

The care processes of cardiac surgery patients are difficult, complex and stressful. Nurses, who have an important role in the care of these patients, may experience burnout or poor quality of work life may be affected because of difficult care processes, and professional difficulties. This study analysed burnout and quality of work life in cardiac surgery nurses. This cross-sectional study was conducted with 68 nurses in the clinic and intensive care unit of a university hospital's cardiovascular surgery department. Clinical nurses care for inpatients in this department, while intensive care nurses care for patients in the intensive care unit. The 'Sociodemographic and Descriptive Characteristics of Nurses Form', 'Maslach Burnout Inventory' and 'Nursing Work Quality of Life Scale' were used to collect the data. The mean score of emotional exhaustion sub-dimension of Maslach Burnout Inventory was 15.25 ± 5.08 (min: 7, max: 27), the mean score of the personal accomplishment sub-dimension was 17.48 ± 4.90 (min: 8, max: 27), and the mean score of depersonalization sub-dimension was 5.60 ± 2.70 (min: 0, max: 13). The mean scores of the emotional exhaustion sub-dimension (t: -2.380, p: .020, risk ratio [RR]: 1.67, confidence interval [CI]: [14.21, 18.82]) and the personal accomplishment sub-dimension (t: -2.604, p: .011, RR: 1.00, CI: [16.08, 19.92]) were higher in intensive care nurses. The mean total score of the nursing quality of work life scale was 107.20 ± 14.60 (min: 72, max: 149). A negative statistically significant relationship was found between the mean scores of emotional exhaustion (r: -0.243, p: .045) and depersonalization sub-dimension (r: -0.325, p: .007) of the Maslach Burnout Scale and the mean total score of the nursing quality of work life scale. In this study, it can be said that cardiac surgery nurses had moderate levels of emotional burnout, personal accomplishment and quality of work life, and low levels of depersonalization. At the same time, it can be seen that intensive care nurses have higher levels of emotional burnout. The increased emotional burnout and depersonalization in nurses decreased the quality of work life. This study provided an understanding of burnout and quality of work life of cardiac surgery nurses. Strategies can be developed to reduce burnout and improve the quality of the work life of cardiac surgery nurses. Particular attention should be paid to intensive care nurses who experience more burnout on several sub-dimensions. This may be a good approach to improving the quality of patient care.

Exploring factors associated with bleeding events after open heart surgery in patients on dialysis − effects of the presence or absence of warfarin therapy

BackgroundPerioperative management of patients on dialysis is critical for controlling bleeding and thrombotic risk, in addition to infection control. Postoperative anticoagulation is often difficult to control, and different institutions have different policies. Therefore, in this study, we aimed to investigate factors associated with postoperative bleeding events and whether warfarin (WF) therapy affects the incidence of postoperative bleeding events, total mortality, and stroke.MethodsPatients who were admitted to the cardiovascular surgery department and underwent valve replacement or plasty were included, and those who underwent mechanical valve introduction were excluded. Thirty-nine patients were included in the study. The primary endpoint was to identify factors associated with the composite endpoint of postoperative bleeding events, and the secondary endpoint was to determine the effect size of WF therapy on postoperative bleeding events, all-cause mortality, and stroke and the strength of association between the crossed endpoints. The strength of the association between the crossed items was examined.ResultsLow body weight (p = 0.038) was identified as a factor associated with the primary endpoint of postoperative bleeding events. The secondary endpoint of whether or not patients received WF therapy was largely unrelated to bleeding events, all-cause mortality, and postoperative stroke up to 90 days after surgery.ConclusionsPreliminary studies suggest that low body weight is a risk factor for postoperative bleeding events in patients on dialysis, although further exploration of other factors will be necessary with the accumulation of similar cases.

Postoperative QRS duration to left ventricular end-diastolic diameter ratio as a predictor for the risk of postoperative atrial fibrillation in cardiac surgery: A single-center prospective study

Background and aimsPostoperative atrial fibrillation (POAF) is a frequent complication following cardiac surgery and is associated with adverse clinical outcomes. Our study aimed at determining the clinical and echocardiographic predictors of POAF in patients with cardiac surgery and management of this group of patients may improve their outcome. MethodsWe prospectively enrolled patients from the department of cardiovascular surgery in the Second Hospital of Tianjin Medical University from October 23, 2020 to October 30, 2022, without a history of atrial fibrillation. Cox regression was used to identify significant predictors of POAF. ResultsA total of 217 patients (79 [36.41 %] were female, 63.96 ± 12.32 years) were included. 88 (40.55 %) patients met the criteria for POAF. Cox regression showed that preoperative left atrial diameter (LAD) (HR: 1.040, 95 % CI 1.008–1.073, p = 0.013) and postoperative QRS/LVEDD (HR: 0.398, 95 % CI 0.193–0.824, p = 0.013) and E/e’ (HR: 1.029, 95 % CI 1.002–1.057，p = 0.033) were predictors of POAF. ConclusionPreoperative LAD and postoperative QRS/LVEDD and E/e’ were predictors of POAF in patients undergoing cardiac surgery. Trial registration sitehttp://www.chictr.org.cn Registration numberChiCTR2200063344.

Tactics of Surgical Repair of Single Ventricle with Excessive Pulmonary Blood Flow and Obstruction of the Distal Arch of the Aorta in Newborns

Pulmonary artery stenosis with distal aortic arch reconstruction and coarctation of the aorta in newborns is an effective palliative procedure for single ventricle and high pulmonary hypertension on the way to total cavo-pulmonary anastomosis. The aim. To present a case of complex correction of a single ventricle of the heart with tricuspid valve atresia and high pulmonary hypertension, obstruction of the distal aortic arch and coarctation of the aorta, and a final effective Fontan procedure with a good long-term outcome. Case report. On December 15, 2011, a 9-day-old newborn patient M. was admitted for treatment at the Department of Cardiovascular Surgery of Odesa Regional Children’s Clinical Hospital with a diagnosis of: a single ventricle of the heart, transposition of the great arteries, tricuspid atresia, distal arch hypoplasia, coarctation of the aorta, patent ductus arteriosus, high pulmonary hypertension. The first stage of surgical treatment was carried out on December 19, 2011: main pulmonary artery banding, reconstruction of the distal arch of the aorta through modified Amato technique, closure of the patent ductus arteriosus, resection of the coarctation of the aorta and extended end-to-end aortoplasty. At the age of 1 year (December 27, 2012), the second stage was performed: bidirectional Glenn procedure with plastic surgery of bifurcation and right pulmonary artery branch. The third stage was performed at the age of 3 years 11 months (November 19, 2015): Fontan procedure with extracardiac conduit. Conclusions. Early elimination of pulmonary hypertension by pulmonary artery banding ensures the preservation of the pulmonary vascular bed with low resistance, which is a crucial condition for the effective final hemodynamic correction of the single ventricle of the heart – the Fontan procedure. In case of hypoplasia of the distal aortic arch with coarctation in newborns, one of the alternative approaches is the use of modified Amato technique avoiding artificial circulation.

Risk assessments of drug-related problems for cardiac surgery patients.

Patients undergoing cardiac surgery are considered at high risk for developing drug-related problems (DRPs) due to comorbidities and complexity of drug treatment. This study aimed to identify DRPs in patients undergoing cardiac surgery and to develop and implement a framework to reduce potential risks associated with drugtreatment. Prospectively designed quasi-experimental study. This study consisted of observational (risk assessment and framework development) and interventional (framework implementation) periods and was conducted at a department of cardiovascular surgery in a university hospital. An expert panel evaluated the causes of DRPs. Then a framework was developed in consensus to identify safeguards to be implemented during the interventionalperiod. A total of 200 patients (100 patients per study period) were included. During the observational period, a total of 275 DRPs and 487 causes were identified; 74.5% of DRPs were not solved. For the risk analysis, 487causes were evaluated and only 32.6% were considered acceptable risk. By implementing the framework in the interventional period, 215 DRPs and 304 causes were identified and 386interventions were recommended by a clinical pharmacist. Atotal of 342 (88.6%) interventions were accepted by a health care team, and 128 (59.5%) DRPs were completely solved. For the risk analysis, 304 causes were evaluated and 84.9% were considered acceptable risk ( P < .001 compared with the observational period). It is possible to reduce risk levels or prevent occurrence of DRPs by implementing a framework for risk management developed by a multidisciplinary care team in areas such as cardiac surgery where time is limited.

Staging reinterventions for remodeling of residual aortic dissection: a single-center retrospective study.

Inadequate remodeling of residual aortic dissection (RAD) following repair of Stanford A or B aortic dissections has been identified as a significant predictor of patient mortality. This study evaluates the short- to mid-term outcomes of staged reinterventions for RAD at a single center with prospective follow-up. Data were retrospectively collected from patients with RAD who underwent staged reinterventions or received none-surgery treatment in the Cardiovascular Surgery Department of our hospital between July 2019 and December 2021. The cohort included 54 patients with residual distal aortic dissection post-primary surgery, comprising 28 who underwent open surgery and 26 who received thoracic endovascular aortic repair (TEVAR). Patients were divided into two groups: those who underwent staged stent interventions for distal dissection [staged reintervention (SR) group] and those who did not undergo surgery (non-surgery group). For the SR group, second or third staged stent interventions were performed. The study assessed distal remodeling of aortic dissection between the groups, focusing on endpoints such as mortality (both general and aortic-specific), occurrences of visceral branch occlusion, necessity for further interventions, and significant adverse events. Morphological changes were analyzed to determine the therapeutic impact. The study encompassed 54 participants, with 33 in the SR group and 21 in the non-surgical control group. Baseline demographics and clinical characteristics were statistically comparable across both groups. During an average follow-up of 31.5 ± 7.0 months, aortic-related mortality was 0% in both groups; all-cause mortality was 3% (one case) and 5% (one case) in the SR and control groups, respectively, with no statistically significant difference noted. In the SR group, a single patient experienced complications, including renal artery thrombosis, leading to diminished blood flow. An increased true lumen (TL) area and a decreased false lumen area at various aortic planes were observed in the SR group compared to the control group. The staged reintervention strategy for treating RAD is safe and provides promising early results.

Therapeutic strategy for totally thoracoscopic repeat mitral valve surgery under moderate hypothermia-induced ventricular fibrillation

Objective: To examine the therapeutic strategy and its impacting factors by analyzing the perioperative outcomes of total thoracoscopic repeat mitral valve surgery under moderate hypothermia-induced ventricular fibrillation with cardiopulmonary bypass. Methods: This study is a retrospective case series. Totally 63 patients who underwent repeat mitral valve surgery by the same surgeon from January 2021 to December 2023 in Department of Cardiovascular Surgery, the First Medical Center of People's Liberation Army General Hospital were retrospectively enrolled. There were 28 males and 35 females with an age of (58.3±15.9) years (range: 13 to 84 years). Surgery was performed using a totally thoracoscopic approach under moderate hypothermia-induced ventricular fibrillation. Mitral valvuloplasty was completed in 32 cases and mitral valve replacement in 31 cases. Preoperative baseline data and perioperative outcomes of the patients were collected and Logistic regression was used to analyze independent influencing factors of premature ventricular contractions in the early postoperative period. Results: The intraoperative cardiopulmonary bypass time was (191.5±50.9) minutes (range: 95 to 286 minutes), and the hypothermic ventricular fibrillation time was (99.0±39.8) minutes (range: 34 to 203 minutes). The anal temperature before the start of cardiopulmonary bypass was (36.3±0.5) ℃ (range: 35.2 to 38.0 ℃), the lowest intraoperative anal temperature was (27.3±1.3) ℃(range: 23.7 to 30.1 ℃), and the anal temperature at the time of the cessation of cardiopulmonary bypass was (36.3±0.4) ℃ (range: 35.2 to 37.0 ℃), and excessive rewarming was observed in 33 cases. Six cases applied the artificial heart assist device. Seventeen cases developed premature ventricular contractions in the early postoperative period. Two cases developed neurologic complications. Five cases developed respiratory complications. One case developed urological systemic complications. Six cases were mechanically ventilated for more than 3 days, and the duration of ICU stay in 16 cases was more than 3 days and the postoperative discharge time of (M(IQR)) 8.0 (3.5) days (range: 3 to 26 days). Two cases died or were discharged voluntarily. Logistic regression results showed that persistent preoperative atrial fibrillation (OR=11.424, 95%CI: 1.477 to 144.564, P=0.033) and excessive rewarming (OR=15.249, 95%CI: 1.357 to 279.571, P=0.038) were independent risk factors for the appearance of premature ventricular contractions in the early postoperative period. Conclusions: The technique of total thoracoscopic surgery under induced moderate hypothermic ventricular fibrillation with cardiopulmonary bypass could be applied to repeated mitral valve surgeries with less trauma and faster recovery. Persistent preoperative atrial fibrillation and excessive rewarming are independent risk factors for the occurrence of premature ventricular contractions in the early postoperative period.

Early to mid-term clinical outcomes of aortic valve repair in patients with bicuspid aortic insufficiency

Objective: To examine the early to mid-term clinical outcomes of aortic valve repair in patients with bicuspid aortic insufficiency. Methods: This is a retrospective cohort study. The clinical data of 124 patients with BAV insufficiency who underwent aortic valve repair from January 2017 to June 2023 in the Department of Cardiovascular Surgery at Fuwai Hospital were analyzed retrospectively. There were 117 males and 7 females with an age of (38.1±12.7) years (range: 14 to 65 years). Depending on whether the aortic sinus was replaced or not, surgical approaches were divided into valve sparing root replacement (reimplantation, remodeling, modified remodeling) and isolated aortic valve repair (annuloplasty, isolated aortic valve leaflet repair). Perioperative and follow-up data were collected. Kaplan-Meier method was used to plot the curves of survival rate, free recurrence rate of massive aortic valve insufficiency and free re-operation rate, and Log-rank test was used for comparison between groups. Results: Among the surgeries, there were 47 cases of reimplantation, 8 cases of remodeling, 8 cases of modified remodeling, 48 cases of aortic annuloplasty (external annuloplasty in 22 cases, CV-0 annuloplasty in 26 cases), and 13 cases of isolated leaflet repair. Leaflet plication was the most used leaflet repair technique, used in 103 patients. The cardiopulmonary bypass time was (133.7±56.9) minutes (range: 48 to 461 minutes), and aortic cross-clamp time was (103.8±47.8) minutes (range: 25 to 306 minutes), with no surgical mortality. All patients underwent outpatient or telephone follow-up. The cumulative follow-up time was 340.3 person-years and the mean follow-up time was (M (IQR)) 34.0 (25.5) months (range: 3 to 76 months). The 5-year survival rate was 98.4%, the 5-year freedom from significant insufficiency rate was 93.4% and the 5-year freedom from aortic valve reoperation rate was 95.6%. The subgroup analysis revealed a significantly better freedom from the significant insufficiency rate in the aortic valve annular reduction group compared to the non-reduction group (P<0.01). Conclusions: Aortic valve repair in patients with bicuspid aortic insufficiency could obtain steady early to mid-term outcomes. Aortic annuloplasty can reduce the risk of recurrent aortic valve insufficiency in patients undergoing aortic repair.

Technical exploration and early results of two-port total thoracoscopic aortic-mitral double-valve replacement

Objective: To examine the clinical outcomes of patients undergoing total thoracoscopic aortic-mitral double-valve replacement. Methods: This is a retrospective case series study. The clinical data of 50 patients who underwent double-valve replacement under a total thoracoscopic two-port approach from November 2021 to August 2022 in the Department of Cardiovascular Surgery, Fujian Medical University Union Hospital were retrospectively analyzed. There were 32 males and 18 females, with an age of (55.3±8.8) years (range: 21 to 62 years). Among them, 36 cases had rheumatic heart disease and 14 cases had infective endocarditis. The 3rd intercostal space between the right anterior axillary line and the midclavicular line was selected as the main operating hole, the total thoracoscopic double-valve replacement were successfully carried out. Baseline data, intraoperative information, surgical outcomes, and postoperative complications were collected for all patients. Results: The cardiopulmonary bypass time was (168.2±30.9) minutes (range: 125 to 187 minutes), the aortic cross-clamping time was (118.8±16.5) minutes (range: 96 to 147 minutes). Five patients received bioprosthetic valves, and 45 received mechanical prosthetic valves. Postoperative mechanical ventilation lasted (9.6±3.4) hours (range: 5.1 to 14.2 hours), the ICU stay was (24.8±7.3) hours (range: 16.3 to 30.1 hours), and the postoperative hospital stay was (6.5±1.2) days (range: 5.0 to 8.0 days). Four patients received red blood cell transfusions of (2.7±0.9) units (range: 2 to 4 units), and the postoperative chest drainage volume was (222.1±56.3) ml (range: 175 to 289 ml). No deaths occurred intraoperatively or in the early postoperative period. One patient required reoperation due to bleeding in the aortic incision. Three patients had mild to moderate paravalvular leakage around the prosthetic aortic valve, with no cases of third-degree atrioventricular block or conversions to median sternotomy. Conclusions: The early outcomes of total thoracoscopic double valve replacement surgery are satisfactory, demonstrating safety and efficacy. This surgical approach expands the scope of total thoracoscopic cardiac surgery, which warrants further investigation and research.

Evaluation of Single/Multiple Joint Effects of Lipid Profiles on Hypertension, Diabetes Mellitus and Obesity Accompanying Coronary Artery Disease

Objective: Although cardiovascular diseases are among the most prominent causes of mortality/morbidity in the world, they are even more important together with comorbidities. This study aims to reveal the single/multiple effects of total cholesterol (TC), high-density lipoprotein-cholesterol (HDL-C), low-density lipoprotein-cholesterol (LDL-C), and triglyceride (TG) on hypertension (HT), type 2 diabetes mellitus (T2DM) and obesity accompanying coronary artery disease (CAD). Method: The data were retrospectively achieved from the records of CAD patients undergoing coronary bypass surgery at the Department of Cardiovascular Surgery, Medical Center, University. The medical knowledge discovery process (MKDP) was applied to the data concerning HT, DM, obesity, TC, HDL-C, LDL-C, and TG variables. Different methods were used to determine the optimal cut-off points of lipid profiles. Logistic regression analysis (LRA) was examined the single/multiple effects of lipid profiles on HT, T2DM, and obesity. Results: TC, LDL-C, TG, and HDL-C lipid profiles categorized according to the cut-off points determined in the current study were analyzed with LRA models. LDL-C (&gt;117 mg/dL)*TC (&gt;191 mg/dL)*HDL-C (&gt;37.2 mg/dL) in HT and TC (&gt;190 mg/dL)*TG (&gt;197) mg/dL)*HDL-C (&gt;36.3 mg/dL) in T2DM interaction terms had a moderate effect size. LDL-C (&gt;115 mg/dL)*TG (&gt;197 mg/dL)*HDL-C (&gt;36.3 mg/dL) interaction terms in T2DM and TC (&gt;192 mg/dL)*LDL-C (&gt;117 mg/dL)*HDL-C (&gt;36.8 mg/dL), TK (&gt;192 mg/dL)*TG (&gt;193 mg/dL)*HDL-C (&gt;36.8 mg/dL) and LDL-C (&gt;117 mg/dL)*TG (&gt;193 mg/dL)*HDL-C (&gt;36.8 mg/dL) interaction terms in obesity were reported as having a high effect size. Conclusion: In conclusion, it is recommended to use the approach that analyzes the cut-off points proposed in this study for lipid profiles in predicting HT, T2DM, and obesity.

Candida auris Outbreak in a Multidisciplinary Hospital in Romania during the Post-Pandemic Era: Potential Solutions and Challenges in Surveillance and Epidemiological Control.

Candida auris is a newly emerging yeast, which is raising public health concerns due to its outbreak potential, lack of protocols for decontamination and isolation of patients or contacts, increased resistance to common antifungals, and associated high mortality. This research aimed to describe the challenges related to identifying the outbreak, limiting further contamination, and treating affected individuals. We retrospectively analyzed all cases of C. auris detected between October 2022 and August 2023, but our investigation focused on a three-month-long outbreak in the department of cardio-vascular surgery and the related intensive care unit. Along with isolated cases in different wards, we identified 13 patients who became infected or colonized in the same area and time, even though the epidemiological link could only be traced in 10 patients, according to the epidemiologic investigation. In conclusion, our study emphasizes the substantial challenge encountered in clinical practice when attempting to diagnose and limit the spread of an outbreak. Therefore, it is crucial to promptly apply contact precaution measures and appropriate environmental cleaning, from the first positive case detected.

Epidemiology of Fontan-associated liver disease in Japan: Results from a nationwide survey in 2021.

Although the Fontan procedure has improved the survival of patients with single-ventricle heart disease, the long-term consequences of the procedure have been a concern. This study aimed to explore the patients' postoperative clinical characteristics, including a diagnosis of Fontan-associated liver disease (FALD). A nationwide Japanese epidemiological survey of post-Fontan patients was undertaken in 2021. The survey targets were selected from all departments of pediatrics, pediatric surgery, cardiology, cardiovascular surgery, and gastroenterology using stratified random sampling by the number of beds. Each department was asked to complete a mail-back questionnaire on the numbers of patients and their clinical characteristics. The diagnosis of FALD was made by each attending physician. The estimated number of post-Fontan patients was 7810 (95% confidence interval, 5430-10200) in 2020, with a period prevalence of 61.9 per million. During the follow-up of 13.8years after the Fontan procedure, 40% of patients were diagnosed with FALD. An elevated γ-glutamyl transpeptidase level was the most common finding leading to the FALD diagnosis (41%), and 45% of the patients also showed liver fibrosis. Compared with non-FALD patients, FALD patients were older, had longer duration since the Fontan procedure, and had more severe cardiac or liver conditions. However, more than half of the non-FALD patients had elevated liver enzyme levels, suggesting underestimation of the number of FALD patients. In 2020, approximately 40% of post-Fontan patients underwent follow-up with a diagnosis of FALD, although the lack of established diagnostic criteria for FALD could affect the reported prevalence of FALD.

Lessons Learned From Three Patients Who Underwent Cesarean Section and Cardiac Valvular Surgery Simultaneously: Anesthesiologists’ Perspective

Background: Cardiac valvular disease constitutes a challenge during pregnancy. Herein, we present our experience with three patients who underwent caesarean section and cardiac valvular surgery simultaneously. The purpose of this case series was to outline the clinical characteristics and to highlight the surgical/anesthesiologic pitfalls to be considered in patients who will undergo cardiac valvular surgery and caesarean section simultaneously. Methods: This retrospective case series was implemented using data extracted from the medical files of three patients who underwent cardiac valvular surgery and caesarean section in the obstetrics and gynecology and cardiovascular surgery departments of our tertiary care center. Demographic data, history, echocardiographic findings, surgical and anesthesiologic techniques as well as perioperative information and therapeutic outcomes were recorded. Results: Three pregnant women with an average age of 33.67 years were diagnosed with various cardiac valvular pathologies on the 3rd trimester. Owing to their diminished cardiac reserves and clear indications for cesarean section, the patients underwent cardiac valvular surgery subsequent to the cesarean section. Procedures were completed successfully on all patients and mothers and infants were discharged after a maternal follow-up in intensive care unit. Conclusion: We suggest that cardiac valve surgery can be performed simultaneously just after cesarean section in selected cases. Risks and benefits must be analyzed well prior to the decision making for the absolute necessity of the invasive procedure. Close collaboration between disciplines, well equipped referral centers, trained personnel and increased awareness on possible complications are the key points for successful surgical management of pregnant women with cardiac valve disease.

Risk factors for prolonged postoperative ICU stay in the patients with Stanford type A aortic dissection

ObjectiveTo investigate the independent risk factors for postoperative prolonged ICU stay in patients with Stanford type A aortic dissection (TAAD) and assess the clinical outcomes of prolonged ICU stay.MethodThe clinical data of 100 patients with TAAD admitted to the Department of Cardiovascular Surgery, First Affiliated Hospital of Anhui Medical University from December 2018 to September 2022 were retrospectively collected and analyzed. Patients were divided into two groups, based on the postoperative ICU stay (7 days as the threshold), regular ICU stay group (< 7 days) and prolonged ICU stay group (≥ 7 days). First, preoperative and intraoperative materials were collected for univariate analysis. Then, the significant variables after univariate analysis were analyzed using logistic regression, and the final independent risk factors for prolonged ICU stay were determined. Meanwhile, the postoperative clinical outcomes were analyzed with the aim of assessing the clinical outcomes due to prolonged ICU stay.ResultsThere were 65 and 35 patients in the regular ICU stay group and the prolonged ICU stay group, respectively. In accordance with the result of univariate analysis in the two groups, emergency surgery (χ2 = 13.598; P < 0.001), preoperative urea nitrogen (t = 3.006; P = 0.004), cardiopulmonary bypass (CPB) time (t = 2.671; P = 0.001) and surgery time (t = 2.630; P = 0.010) were significant. All significant variates were analyzed through logistic regression, and it was found that emergency surgery (OR = 0.192; 95% CI: 0.065–0.561), preoperative urea nitrogen (OR = 0.775; 95% CI: 0.634–0.947) and cardiopulmonary time (OR = 0.988; 95% CI: 0.979–0.998) were independent risk factors for prolonged postoperative ICU stay. The Receiver Operating Characteristic (ROC) curves of these three factors were also effective in predicting postoperative prolonged ICU stay (Emergency surgery, AUC = 0.308, 95% CI: 0.201–0.415; Preoperative urea nitrogen, AUC = 0.288, 95% CI: 0.185–0.392; cardiopulmonary time, AUC = 0.340, 95% CI: 0.223–0.457). Moreover, compared with a single factor, the predictive value of combined factors was more significant (AUC = 0.810, 95% CI: 0.722–0.897). For the comparison of postoperative data in the two groups,, compared with the regular ICU stay group, the incidence of adverse events in the prolonged ICU stay group increased significantly, including limb disability of limbs (χ2 = 22.182; P < 0.001), severe organ injury (χ2 = 23.077; P < 0.001), tracheotomy (χ2 = 17.582; P < 0.001), reintubation (χ2 = 28.020; P < 0.001), 72 h tracheal extubation after surgery (χ2 = 29.335; P < 0.001), 12 h consciousness recovery after surgery (χ2 = 18.445; P < 0.001), ICU re-entering (χ2 = 9.496; P = 0.002) and irregular discharging (χ2 = 24.969; P < 0.001).ConclusionEmergency surgery, preoperative urea nitrogen, and CPB time are risk factors for postoperative prolonged ICU stay after TAAD surgery. Furthermore, prolonged ICU stay is associated with worse clinical outcomes. Hence, a reasonable strategy should be adopted proactively focusing on the risk factors to shorten ICU stays and improve clinical outcomes.

Effects of percutaneous closure of atrial septal defects via the right internal jugular vein.

Percutaneous atrial septal defect (ASD) closure is the preferred treatment for patients with suitable ASD anatomy. The safety and effectiveness of transcatheter closure have been established. However, reports on transesophageal echocardiography (TEE)-guided percutaneous closure of ASD via the right internal jugular vein (RIJV) are limited. The study aims to discuss the safety and effectiveness of percutaneous trans-jugular vein closure of ASD. We conducted a retrospective analysis of patients (n=103) with secondary ASD who underwent surgical treatment in the Department of Cardiovascular Surgery, the Second Hospital of Jilin University between July 2015 to July 2022. The article is a cross-sectional study. Clinical data, including age, gender, weight, defect diameter, tricuspid regurgitation, left atrial (LA) size, and the operation results, were collected and evaluated. Nonparametric rank sum tests were used to assess tricuspid regurgitation before and after surgery, while paired sample t-tests were used to compare LA size before and after surgery. TEE-guided percutaneous closure of ASD via the RIJV was successfully performed in 97 out of 103 (94.2%) cases. The average procedure time was 34.48±13.06 min, and the mean age at the time of the procedure and ASD size were 36±18 years and 15.45±5.82 mm, respectively. On analyzing medical records and echocardiographic images, postoperative complications were found to occur in four (3.9%) patients. Among these, three patients had residual shunt as indicated by echocardiography during the operation, which subsequently disappeared at the three-month follow-up. One patient developed atrial fibrillation after surgery but returned to normal sinus rhythm with medication. Percutaneous closure of ASD via the RIJV was unsuccessful in 6 patients (5.8%), with 5 of them undergoing transthoracic ASD closure and achieving satisfactory results. One patient refused further surgical treatment. No pericardial effusion, thrombosis, atrioventricular block, or other complications were observed during the 3-month to 1-year follow-up period. ASD closure via the RIJV is a safe and effective therapeutic approach. The initial results are satisfactory, but further studies with large sample sizes and long-term follow-up are warranted to assess the long-term outcomes.

Evaluation of surgical outcomes in mechanical aortic valve replacement at Hue Central Hospital

Background: Mechanical aortic valve replacement (AVR) is the preferred treatment for young patients with severe aortic valve disease. Objective: To assess the outcomes of mechanical AVR. Methods: This study included 41 patients who underwent mechanical AVR at the Department of Cardiovascular and Thoracic Surgery, Hue Central Hospital, from January 2021 to January 2023. Results: The average age was 49.17 ± 10.78 years, with a male-to-female ratio of 4:3. Pre-surgery, 51.23% were in NYHA class I-II, and 48.77% in NYHA III-IV. Key measurements included a left ventricular ejection fraction (LVEF) of 56.17 ± 9.23%, a left ventricular end-diastolic diameter (LVEDD) of 52.66 ± 8.35 mm, and a left ventricular end-systolic diameter (LVESD) of 36.88 ± 8.02 mm. At 6 months, 87.81% were in NYHA I-II, and 12.19% in NYHA III-IV; LVEF was 61.68 ± 2.55%, LVEDD was 44.15 ± 4.08 mm, and LVESD was 29.0 ± 3.77 mm. Complications of acute kidney failure 7.31%, cardiac arrhythmia 4.88%. There were no deaths after surgery. Conclusion: Mechanical AVR surgery is a safe and effective treatment option. Key words: mechanical aortic valve replacement, aortic valve replacement, aortic valve.