The Impact of Frailty Components and Preoperative Mechanical Cardiac Support Changes with Time after Heart Transplantation

BACKGROUND

Frailty has been proven to be associated with mortality after orthotopic heart transplantation (OHT). The aim of our study was to determine the impact of frailty on mortality in the current era using pretransplant mechanical cardiac support (MCS).

METHODS

We retrospectively calculated the frailty scores of 471 patients undergoing OHT in a single institution between January 2012 and August 2022. The outcome was all-cause mortality.

RESULTS

The median survival time was 1987 days (IQR: 1487 days) for all patients. In total, 266 (56.5%) patients were categorized as nonfrail, 179 (38.0%) as prefrail, and 26 (5.5%) as frail. The survival rates were 0.73, 0.54, and 0.28 for nonfrail, prefrail, and frail patients, respectively. The frailty score was associated with mortality [HR: 1.34 (95% CI: 1.22-1.47, p < 0.001)]. Among the components of the frailty score, age above 50 years, creatinine ≥ 3.0 mg/dL or prior dialysis, and hospitalization before OHT were independently associated with mortality. Continuous-flow left ventricular assist devices (CF-LVAD) were associated with an increased risk for all-cause mortality [AHR: 1.80 (95% CI: 1.01-3.24, p = 0.047)].

CONCLUSIONS

The components of the frailty score were not equally associated with mortality. Frailty and pretransplant MCS should be included in the risk estimation.

The Perioperative Period of Heart Transplantation Is Affected by Thyroid Hormone Status

Background: Orthotopic heart transplantation (HTx) is a long-term surgical therapeutic approach for patients with end-stage heart failure. The objective of the present study was to uncover associations between altered thyroid hormone (TH) status and adverse outcomes after HTx. Methods: In this prospective, single-center cohort study, 283 patients underwent HTx between 2013 and 2020 at the Heart and Vascular Center of Semmelweis University in Hungary. We measured serum free triiodothyronine (fT3), free thyroxine (fT4), and thyrotropin (TSH) pre- and postoperatively. TaqMan qPCR was used to measure type 2 deiodinase and type 3 deiodinase mRNA (Dio2 and Dio3, respectively) levels from the diseased heart bioptates. To assess the local TH action of the heart, mRNA levels of Hcn2 and Myh7 were measured in a subgroup of patients receiving extracorporeal membrane oxygenation (ECMO) postoperatively. Groups were compared using nonparametric tests. Cox regression analysis and logistic regression test were used to investigate the outcomes. The connection between serum TH parameters and cardiac gene expressions was assessed using linear regression. Results: Serum TSH (p = 0.009), fT3 (p < 0.001), and fT4 (p < 0.001) levels were lower after HTx than preoperatively. Levothyroxine (LT4) administered to donors was associated with better survival after 30 days (p = 0.049). LT4 replacement given to recipients after HTx was associated with better survival after 30 days (p = 0.018), 1 year (p = 0.002), and 2 years (p = 0.001). Dio3 mRNA level was significantly increased in patients who were treated with ECMO (p = 0.026), left ventricular assist device (LVAD) (p = 0.008), and biventricular assist device (BiVAD) (p = 0.013) preoperatively, and ECMO (p = 0.042) postoperatively, compared with those who did not require any type of mechanical circulatory support (MCS). We found no significant difference in the expression of the Hcn2 and Myh7 marker genes between patients on postoperative ECMO and those without MCS, and neither did they correlate with serum hormone levels (p = 0.519 and p = 0.056, respectively). Conclusions: We conclude that TH status plays an important role in HTx patients, and monitoring of TH status in the perioperative period may contribute to improved treatment outcomes. Our findings require independent confirmation in a randomized controlled clinical trial.

Non-Invasive Tools in Perioperative Stroke Risk Assessment for Asymptomatic Carotid Artery Stenosis with a Focus on the Circle of Willis

This review aims to explore advancements in perioperative ischemic stroke risk estimation for asymptomatic patients with significant carotid artery stenosis, focusing on Circle of Willis (CoW) morphology based on the CTA or MR diagnostic imaging in the current preoperative diagnostic algorithm. Functional transcranial Doppler (fTCD), near-infrared spectroscopy (NIRS), and optical coherence tomography angiography (OCTA) are discussed in the context of evaluating cerebrovascular reserve capacity and collateral vascular systems, particularly the CoW. These non-invasive diagnostic tools provide additional valuable insights into the cerebral perfusion status. They support biomedical modeling as the gold standard for the prediction of the potential impact of carotid artery stenosis on the hemodynamic changes of cerebral perfusion. Intraoperative risk assessment strategies, including selective shunting, are explored with a focus on CoW variations and their implications for perioperative ischemic stroke and cognitive function decline. By synthesizing these insights, this review underscores the potential of non-invasive diagnostic methods to support clinical decision making and improve asymptomatic patient outcomes by reducing the risk of perioperative ischemic neurological events and preventing further cognitive decline.

Teaching nontechnical skills in the undergraduate education of health care professionals: a nationwide cross-sectional study in Hungary

BACKGROUND

The aim of our cross-sectional study was to evaluate the current situation and curriculum of nontechnical skills (NTS) training in the undergraduate education of health care professionals in Hungary.

METHODS

All institutes with relevant NTS training in Hungarian faculties of medicine and faculties of health sciences were asked to fill out a 19-item questionnaire. Descriptive statistics were performed, and the characteristics of NTS teaching and non-NTS teaching institutes were compared. The independent predictors of teaching NTS in a particular institute were identified with multiple logistic regression.

RESULTS

Seventy-seven institutes responded (52% response rate), of which 66% trained NTS. The most frequent method of NTS training is talking about them during a practice or lecture, and less than half of NTS respondents use simulation. The most frequent cause of not teaching NTS is a lack of human or technical resources. The type of faculty (p = 0.025), academic year (p = 0.001), field of medicine (p = 0.025), and importance of teamwork (p = 0.021) differed between NTS and noNTS institutes. Teaching students in academic year two represented the only independent predictor of NTS education (p = 0.012).

CONCLUSIONS

Our findings show that the undergraduate curriculum of Hungarian universities includes some type of NTS education; however, this education requires further development.

Recipient Pericardial Apolipoprotein Levels Might Be an Indicator of Worse Outcomes after Orthotopic Heart Transplantation

BACKGROUND

End-stage heart failure (ESHF) leads to hypoperfusion and edema formation throughout the body and is accompanied by neurohormonal and immunological alterations. Orthotopic heart transplantation (HTX) has been used as a beneficial option for ESHF. Due to the shortage of donor hearts, the ideal matching and timing of donors and recipients has become more important.

PURPOSE

In this study, our aim was to explore the relationship between the clinical outcomes of HTX and the cytokine and apolipoprotein profiles of the recipient pericardial fluid obtained at heart transplantation after opening the pericardial sac.

MATERIALS AND METHODS

The clinical data and the interleukin, adipokine, and lipoprotein levels in the pericardial fluid of twenty HTX recipients were investigated. Outcome variables included primer graft dysfunction (PGD), the need for post-transplantation mechanical cardiac support (MCS), International Society for Heart and Lung Transplantation grade ≥2R rejection, and mortality. Recipient risk scores were also investigated.

RESULTS

Leptin levels were significantly lower in patients with PGD than in those without PGD (median: 6.36 (IQR: 5.55-6.62) versus 7.54 (IQR = 6.71-10.44); p = 0.029). Higher ApoCII levels (median: 14.91 (IQR: 11.55-21.30) versus 10.31 (IQR = 10.02-13.07); p = 0.042) and ApoCIII levels (median: 60.32 (IQR: 43.00-81.66) versus 22.84 (IQR = 15.84-33.39); p = 0.005) were found in patients (n = 5) who died in the first 5 years after HTX. In patients who exhibited rejection (n = 4) in the first month after transplantation, the levels of adiponectin (median: 74.48 (IQR: 35.51-131.70) versus 29.96 (IQR: 19.86-42.28); p = 0.039), ApoCII (median: 20.11 (IQR: 13.06-23.54) versus 10.32 (IQR: 10.02-12.84); p = 0.007), and ApoCIII (median: 70.97 (IQR: 34.72-82.22) versus 26.33 (IQR: 17.18-40.17); p = 0.029) were higher than in the nonrejection group. Moreover, the pericardial thyroxine (T4) levels (median: 3.96 (IQR: 3.49-4.46) versus 4.69 (IQR: 4.23-5.77); p = 0.022) were lower in patients with rejection than in patients who did not develop rejection.

CONCLUSION

Our results indicate that apolipoproteins can facilitate the monitoring of rejection and could be a useful tool in the forecasting of early and late complications.

Hormonal changes in the first 24 postoperative hours after cardiac surgical procedures

Background

Hormone level changes after heart surgeries are a widely observed phenomenon due to neurohormonal feedback mechanisms that may affect postoperative morbidity and mortality. The current study aimed to analyze the changes in thyroid and sex hormones in the first 24 postoperative hours after heart surgery.

Methods

This prospective, observational study (registered on ClinicalTrials.gov: NCT03736499; 09/11/2018) included 49 patients who underwent elective cardiac surgical procedures at a tertiary heart center between March 2019 and December 2019. Thyroid hormones, including thyroid-stimulating hormone (TSH), triiodothyronine (T3), and thyroxine (T4), and sex hormones, including prolactin (PRL) and total testosterone, were measured preoperatively and at 24 h postoperatively.

Results

Significant decreases in serum TSH (P < 0.001), T3 (P < 0.001) and total testosterone (P < 0.001) levels were noted, whereas T4 (P = 0.554) and PRL (P = 0.616) did not significantly change. Intensive care unit (ICU) hours (P < 0.001), mechanical ventilation (P < 0.001) and Vasoactive-Inotropic Score (VIS) (P = 0.006) were associated with postoperative T3 level. ICU hours were associated with postoperative T4 level (P = 0.028). Postoperative and delta testosterone levels were in connection with lengths of stay in ICU (P = 0.032, P = 0.010 respectively). Model for End-Stage Liver Disease (MELD) scores were associated with thyroid hormone levels and serum testosterone.

Conclusions

T3 may represent a marker of nonthyroidal illness syndrome and testosterone may reflect hepatic dysfunction. In addition, PRL may act as a stress hormone in female patients.

Factors improving mortality in critically ill patients with liver failure - A systematic review

Background

Acute and chronic hepatic failure can lead to increased mortality in critically ill and perioperative patients. Understanding the pathophysiological principles of these conditions in critically ill patients is of great importance to reduce mortality. The aim of our systematic literature review was to identify all randomized controlled trials on any intervention that had a statistically significant documented reduction in mortality in patients with hepatic failure.

Methods

We searched PubMed, Scopus and Embase databases for pertinent studies on January 1st 2021. The following studies were included: randomized controlled trials; studies investigating adult critically ill or perioperative patient populations with any form of hepatic failure; mortality as primary or secondary outcome; and statistically significant differences in mortality between the examined groups.

Results

We finally found nine trials in our systematic review on the effect of antibiotic administration and infectious diseases among patients with cirrhosis (three studies); immune modulation after liver transplantation (one study); administration of colloids in cirrhotic patients (one study); the effect of high-volume plasma exchange in acute liver failure (one study); administration of N-acetylcysteine in acute liver failure (one study); and treatment with terlipressin (two studies).

Conclusion

In the present review we found only nine randomized studies with a documented survival benefit in patients with liver failure. Strategies that most improved mortality were associated with the outcome of sepsis and renal function.

Comprehensive frailty assessment with multidimensional frailty domains as a predictor of mortality among vascular and cardiac surgical patients

Purpose

The frailty concept has become a fundamental part of daily clinical practice. In this study our purpose was to create a risk estimation method with a comprehensive aspect of patients' preoperative frailty.

Patients and methods

In our prospective, observational study, patients were enrolled between September 2014 and August 2017 in the Department of Cardiac Surgery and Department of Vascular Surgery at Semmelweis University, Budapest, Hungary. A comprehensive frailty score was built from four main domains: biological, functional-nutritional, cognitive-psychological and sociological. Each domain contained numerous indicators. In addition, the EUROSCORE for cardiac patients and the Vascular POSSUM for vascular patients were calculated and adjusted for mortality.

Results

Data from 228 participants were included for statistical analysis. A total of 161 patients underwent vascular surgery, and 67 underwent cardiac surgery. The preoperatively estimated mortality was not significantly different (median: 2.700, IQR (interquartile range): 2.000-4.900 vs. 3.000, IQR: 1.140-6.000, P = 0.266). The comprehensive frailty index was significantly different (0.400 (0.358-0.467) vs. 0.348 (0.303-0.460), P = 0.001). In deceased patients had elevated comprehensive frailty index (0.371 (0.316-0.445) vs. 0.423 (0.365-0.500), P < 0.001). In the multivariate Cox model an increased risk for mortality in quartiles 2, 3 and 4 compared with quartile 1 as a reference was found (AHR (95% CI): 1.974 (0.982-3.969), 2.306 (1.155-4.603), and 3.058 (1.556-6.010), respectively).

Conclusion

The comprehensive frailty index developed in this study could be an important predictor of long-term mortality after vascular or cardiac surgery. Accurate frailty estimation could make the traditional risk scoring systems more accurate and reliable.

Donor Pericardial Interleukin and Apolipoprotein Levels May Predict the Outcome after Human Orthotopic Heart Transplantation

The proinflammatory cascade that is activated at the time of brain death plays a crucial role in organ procurement. Our aim of this study was to explore the relationship between the clinical outcome of orthotopic heart transplantation, as well as cytokine and apolipoprotein profiles of the pericardial fluid obtained at donation. Interleukin, adipokine and lipoprotein levels in the pericardial fluid, as well as clinical data of twenty donors after brain death, were investigated. Outcome variables included primary graft dysfunction, the need for posttransplantation mechanical cardiac support and International Society for Heart and Lung Transplantation grade ≥ 2R rejection. Hormone management and donor risk scores were also investigated. Lower levels of IL-6 were observed in primary graft dysfunction (median: 36.72 [IQR: 19.47–62.90] versus 183.67 [41.21–452.56]; p = 0.029) and in the need for mechanical cardiac support (44.12 [20.12–85.70] versus 247.13 [38.51–510.38]; p = 0.043). Rejection was associated with lower ApoAII (p = 0.021), ApoB100 (p = 0.032) and ApoM levels (p = 0.025). Lower adipsin levels were detected in those patients receiving desmopressin (p = 0.037); moreover, lower leptin levels were found in those patients receiving glucocorticoid therapy (p = 0.045), and higher T3 levels were found in those patients treated with L-thyroxine (p = 0.047) compared to those patients not receiving these hormone replacement therapies. IL-5 levels were significantly associated with UNOS-D score (p = 0.004), Heart Donor Score (HDS) and Adapted HDS (p < 0.001). The monitoring of immunological and metabolic changes in donors after brain death may help in the prediction of potential complications after heart transplantation, thus potentially optimizing donor heart allocation.

[Associations between cardiovascular diseases and psychosocial factors and options for intervention]

Coronary artery disease is a highly prevalent heart disease and the leading cause of morbidity and mortality in developed countries. During the last decades, numerous studies have focused on the comprehension of the relationship between coronary heart disease and different psychosocial factors. Coronary artery bypass graft surgery is a common treatment for coronary artery disease and is usually associated with improved clinical outcomes. Symptoms of anxiety and unipolar depression are common psychological disorders in patients awaiting coronary artery bypass graft surgery. Several prospective cohort studies have been carried out on the factors affecting the short- and long-term outcome of coronary artery bypass graft surgery. Scientific literature reports that not only clinical features, e.g., cardial state, comorbidity or intraoperative factors influence the outcome of cardiac surgery. In a comprehension of psychosocial factors over traditional risk factors (hypertension, LDL cholesterol level, diabetes mellitus, smoking, obesity and physical inactivity) on morbidity and mortality rates, the previously mentioned ones proved to be determinant. Gathering patients' psychological status before undergoing heart surgery and providing psychological interventions if they are indicated would be beneficial. A better understanding of whether and when psychological interventions affect specific outcomes may help design even more powerful interventions and make better predictions of which patients will benefit from which psychological intervention. Psychological assessment and intervention thus merit integration into routine surgical care. Orv Hetil. 2023; 164(11): 411-419.

Association between Hepatic Venous Congestion and Adverse Outcomes after Cardiac Surgery

INTRODUCTION

Hepatic venous flow patterns reflect pressure changes in the right ventricle and are also markers of systemic venous congestion. Fluid management is crucial in patients undergoing cardiac surgery.

METHODS

Our goal was to determine which factors are associated with the increased congestion of the liver as measured by Doppler ultrasound in patients undergoing cardiac surgery. This prospective, observational study included 41 patients without preexisting liver disease who underwent cardiac surgery between 1 January 2021 and 30 September 2021 at a tertiary heart center. In addition to routine echocardiographic examination, we recorded the maximal velocity and velocity time integral (VTI) of the standard four waves seen in the common hepatic vein (flow profile) using Doppler ultrasound preoperatively and at the 20-24th hour of the postoperative period. The ratios of the retrograde and anterograde hepatic venous waves were calculated, and the waveforms were compared to the baseline value and expressed as a delta ratio. Demographic data, pre- and postoperative echocardiographic parameters, intraoperative variables (procedure, cardiopulmonary bypass time), postoperative factors (fluid balance, vasoactive medication requirement, ventilation time and parameters) and perioperative laboratory parameters (liver and kidney function tests, albumin) were used in the analysis.

RESULTS

Of the 41 patients, 20 (48.7%) were males, and the median age of the patients was 65.9 years (IQR: 59.8-69.9 years). Retrograde VTI growth showed a correlation with positive fluid balance (0.89 (95% CI 0.785-0.995) c-index. After comparing the postoperative echocardiographic parameters of the two subgroups, right ventricular and atrial diameters were significantly greater in the "retrograde VTI growth" group. The ejection fraction and decrement in ejection fraction to preoperative parameters were significantly different between the two groups. (p = 0.001 and 0.003). Ventilation times were longer in the retrograde VTI group. The postoperative vs. baseline delta VTI ratio of the hepatic vein correlated with positive fluid balance, maximum central venous pressure, and ejection fraction. (B = -0.099, 95% CI = -0.022-0.002, p = 0.022, B = 0.011, 95% CI = 0.001-0.021, p = 0.022, B = 0.091, 95% CI = 0.052-0.213, p = 0.002, respectively.) Conclusion: The increase of the retrograde hepatic flow during the first 24 h following cardiac surgery was associated with positive fluid balance and the decrease of the right ventricular function. Measurement of venous congestion or venous abdominal insufficiency seems to be a useful tool in guiding fluid therapy and hemodynamic management.

Association between Preoperative Retrograde Hepatic Vein Flow and Acute Kidney Injury after Cardiac Surgery

Key questions: Is there a predictive value of hepatic venous flow patterns for postoperative acute kidney injury (AKI) after cardiac surgery? Key findings: In patients who underwent cardiac surgery, retrograde hepatic venous waves (A, V) and their respective ratio to anterograde waves showed a strong association with postoperative AKI, defined as the percentage change of the highest postoperative serum creatinine from the baseline preoperative concentration (%ΔCr). The velocity time integral (VTI) of the retrograde A wave and the ratio of the retrograde and anterograde waves’ VTI were independently associated with AKI after adjustment for disease severity. Take-home message: A higher ratio of retrograde/antegrade waves in hepatic venous retrograde waves, which are related to hepatic stasis, may predict AKI after cardiac surgery. Introduction: Hepatic venous flow patterns reflect pressure changes in the right ventricle and are also markers of systemic venous congestion. Pulsatility of the inferior caval vein was used to predict the risk of acute kidney injury (AKI) after cardiac surgery. Aims: Our objective was to evaluate the association between preoperative hepatic venous flow patterns and the risk of AKI in patients after cardiac surgery. Methods: This prospective, observational study included 98 patients without preexisting liver disease who underwent cardiac surgery between 1 January 2018, and 31 March 2020, at a tertiary heart center. In addition to a routine echocardiographic examination, we recorded the maximal velocity and velocity time integral (VTI) of the standard four waves in the common hepatic vein with Doppler ultrasound. Our primary outcome measure was postoperative AKI, defined as the percentage change of the highest postoperative serum creatinine from the baseline preoperative concentration (%ΔCr). The secondary outcome was AKI, defined by KDIGO (Kidney Disease Improving Global Outcomes) criteria. Results: The median age of the patients was 69.8 years (interquartile range [IQR 25−75] 13 years). Seventeen patients (17.3%) developed postoperative AKI based on the KDIGO. The VTI of the retrograde A waves in the hepatic veins showed a strong correlation (B: 0.714; p = 0.0001) with an increase in creatinine levels after cardiac surgery. The velocity time integral (VTI) of the A wave (B = 0.038, 95% CI = 0.025−0.051, p < 0.001) and the ratio of VTI of the retrograde and anterograde waves (B = 0.233, 95% CI = 0.112−0.356, p < 0.001) were independently associated with an increase in creatinine levels. Conclusions: The severity of hepatic venous regurgitation can be a sign of venous congestion and seems to be related to the development of AKI.

Preoperative nutritional state is associated with mid- and long-term mortality after cardiac surgery

BACKGROUND

The frailty score has been developed to determine physiological functioning capacity. The aim of our research was to explore the relationship between frailty factors and mortality in cardiac surgery patients.

METHODS

Our research is an observational, single-center, prospective cohort study (registered on ClinicalTrials.gov: NCT02224222), and we studied 69 patients who underwent elective cardiac surgery between 2014 and 2017. Thirty days before the surgery, they completed a questionnaire that contained questions related to social support, self-reported life quality-happiness, cognitive functions, anxiety and depression. Demographic, anthropometric and medical data were widely collected. The Geriatric Nutritional Risk Index (GNRI) and the Comprehensive Geriatric Assessment (CGA)-based frailty index were calculated as a sum and the domains, respectively. Cox regression and the Kaplan-Meier tests were applied to analyze survival and relative risk. The primary outcome was mid-term mortality.

RESULTS

The patients' mean age was 65.43 years [standard deviation (SD): 9.81 years]. The median followup was 1,656 days of survival [interquartile range (IQR), 1,336-2,081 years], during this period 14 patients died. The median of EuroSCORE II was 1.56 (1.00-2.58) points. The median preoperative albumin level was 32.80 g/L (IQR, 29.9-35.8 g/L). Major adverse cardiovascular and cerebral events (MACCEs) occurred 7 times during follow-up. The nutrition score of the CGA was significantly associated with worse long-term survival [score; hazard ratio (HR): 5.35; 95% CI: 1.10-25.91, P=0.037]. After adjustment for EuroSCORE II and postoperative complications the noncardiovascular CGA score was associated with overall mortality [adjusted hazard ratio (AHR): 1.44, 95% CI: 1.02-2.04, P=0.036]. In the multivariable Cox regression, GNRI <91 showed an increased risk for mortality (AHR: 4.76, 95% CI: 1.52-14.92, P=0.007).

CONCLUSIONS

The CGA-based noncardiovascular score and nutritional status should be assessed before cardiac surgery prehabilitation and may help decrease long-term mortality.

European Association of Cardiothoracic Anesthesiology and Intensive Care Pediatric Cardiac Anesthesia Fellowship Curriculum: First Edition

Pediatric cardiac anesthesia is a subspecialty of cardiac and pediatric anesthesiology dedicated to the perioperative care of patients with congenital heart disease. Members of the Congenital and Education Subcommittees of the European Association of Cardiothoracic Anaesthesiology and Intensive Care (EACTAIC) agreed on the necessity to develop an EACTAIC pediatric cardiac anesthesia fellowship curriculum. This manuscript represents a consensus on the composition and the design of the EACTAIC Pediatric Cardiac Anesthesia Fellowship program. This curriculum provides a basis for the training of future pediatric cardiac anesthesiologists by clearly defining the theoretical and practical requirements for fellows and host centers.

ADHD symptomatology of children with congenital heart disease 10 years after cardiac surgery: the role of age at operation

BACKGROUND

The aim of the present study was to investigate the differences in ADHD symptomatology between healthy controls and children who underwent cardiac surgery at different ages.

METHODS

Altogether, 133 children (54 patients with congenital heart disease undergoing first cardiac surgery under 3 years of age, 26 operated at the age of 3 or later, and 53 healthy controls) were examined. Patients completed the Youth Self Report (YSR), while their parents completed the Child Behaviour Checklist (CBCL) and the ADHD Rating Scale-IV.

RESULTS

Children receiving surgery for the first time under the age of 3 years were more likely diagnosed with cyanotic type malformation and have undergone to a greater number of operations. However, ADHD symptoms of those treated surgically at or above 3 years of age were more severe than that of the control group or those who were treated surgically at a younger age. The control group and those treated surgically below the age of three did not differ across any of the ADHD symptom severity indicators.

CONCLUSIONS

The age at the time of cardiac surgery might be associated with later ADHD symptom severity - with lower age at operation associated with better outcomes. Further, adequately powered studies are needed to confirm these exploratory findings and investigate the moderators of this relationship.

Changing strategies in aortic root reconstruction in Marfan syndrome

Összefoglaló. Bevezetés: A Marfan-szindróma autoszomális domináns módon öröklődő, szisztémás kötőszöveti betegség. A hosszú távú túlélés szempontjából fontos a nagyérkatasztrófák megelőzése. Szívsebészeti szempontból a legfontosabb elváltozás az aortagyök tágulata. Aortagyök-rekonstrukciós beavatkozásaink Bentall-DeBono-, David I. és módosított Yacoub-műtétek, melyek mind preventív jelleggel, mind dissectio esetén jó eredménnyel végezhetők. Célkitűzés: A marfanos betegeknél eltérő technikával végzett aortagyök-rekonstrukciós műtéteink összehasonlítása. Módszer: A Semmelweis Egyetem Városmajori Szív- és Érgyógyászati Klinikáján 1993 és 2020 között Marfan-szindrómásoknál elvégzett Bentall-DeBono-, David I. és módosított Yacoub-féle aortagyök-rekonstrukciókat elemeztük. A műtét szerinti csoportok életkora a beavatkozás idején 29,69 (21,98-41,25) év, 29,15 ± 11,99 év és 35,29 ± 14,14 év volt, a fenti sorrendben. Az adatok forrásául a Magyar Marfan Regiszter és az Aortagyök-rekonstrukciós Regiszter szolgált. Eredmények: Az utánkövetési idő 132 ± 81,04 hónap volt a Bentall-, 76 ± 27,77 hónap a David-, valamint 4,5 (0,75-11,75) hónap a Yacoub-műtét esetén. A David- és a Yacoub-beavatkozások gyakrabban voltak profilaktikusak, mint a Bentall-operációk (p = 0,0153; p = 0,0085). A Bentall-műtéteknél ritkább volt a primer műtét esetleges későbbi elégtelenségéből fakadó reoperáció, mint a David-operációknál (p<0,001). David-beavatkozásnál a Bentall-műtéthez képest hosszabb volt a cardiopulmonaris bypass (p = 0,0013) és az aortalefogás ideje (p = 0,0048), valamint David- és Yacoub-műtét esetén gyakrabban lépett fel korai posztoperatív szövődmény, mint Bentall-operációnál (p = 0,0005; p = 0,0037). A késői szövődmények és a túlélés tekintetében a csoportok nem különböztek. Következtetés: Marfan-szindrómában a leggyakrabban halált okozó szövődmény az akut aortaruptura, illetve akut aortadissectio. Eredményeink alapján mindhárom profilaktikus aortagyök-rekonstrukciós műtéti típus jól reprodukálható és jó eredménnyel végezhető Marfan-szindrómában. Orv Hetil. 2021; 162(18): 696-704.

SUMMARY

INTRODUCTION

Marfan syndrome is an autosomal dominant, systemic connective tissue disorder. Preventing vascular complications is essential for long-term survival. Aortic dilation is the main cardiac surgical manifestation. Bentall-DeBono, David I and modified Yacoub aortic root reconstructions treat and prevent aortic dissections with great outcomes.

OBJECTIVE

Comparing results of aortic root reconstructions in Marfan syndrome.

METHOD

We analysed the data of Bentall-DeBono, David I and modified Yacoub operations performed in Marfan syndrome at the Heart and Vascular Center, Semmelweis University between 1993 and 2020. Ages of surgical groups at the time of operation were 29.69 (21.98-41.25) years, 29.15 ± 11.99 years and 35.29 ± 14.14 years, respectively. Data were obtained from the Hungarian Marfan Register and the Aortic Root Reconstruction Register.

RESULTS

Follow-up time was 132 ± 81.04 months for Bentall, 76 ± 27.77 months for David and 4.5 (0.75-11.75) months for Yacoub groups. David and Yacoub operations were prophylactic more frequently than Bentall ones (p = 0.0153; p = 0.0085). Freedom from reoperation after primary surgery insufficiency was more common for Bentall than for David procedure (p<0.001). Compared to Bentall, David surgeries required longer cardiopulmonary bypass (p = 0.0013) and aortic cross clamp time (p = 0.0048), more early postoperative complications occurred after David and Yacoub, than after Bentall operations (p = 0.0005; p = 0.0037). Late complications and survival did not differ among the groups.

CONCLUSION

In Marfan syndrome, acute aortic rupture and dissection are the main contributors to mortality. Based on our results, the prophylactic aortic root reconstructions are reproducible and can be performed with great outcomes. Orv Hetil. 2021; 162(18): 696-704.

The effect of cognitive dysfunction on mid- and long-term mortality after vascular surgery

Background

In recent decades, previous studies have noted the importance of frailty, which is a frequently used term in perioperative risk evaluations. Psychological and socioeconomical domains were investigated as part of frailty syndrome. The aim of this study was to assess the importance of these factors in mortality after vascular surgery.

Methods

In our prospective, observational study (ClinicalTrials.gov Identifier: NCT02224222), we examined 164 patients who underwent elective vascular surgery between 2014 and 2017. At the outpatient anaesthesiology clinic, patients completed a questionnaire about cognitive functions, depression and anxiety, social support and self-reported quality of life were assessed using a comprehensive frailty index, in addition to medical variables. Propensity score matching was performed to analyse the difference between patients and controls in a nationwide population cohort. The primary outcome was 4 year mortality. The Kaplan-Meier method and Cox regression analysis were used for statistical analyses.

Results

The patients’ mean age was 67.05 years (SD: 9.49 years). Mini-Mental State Examination scores of less than 27 points were recorded for 41 patients. Overall mortality rates were 22.4 and 47.6% in the control and cognitive impairment groups, respectively (p = 0.013). In the univariate Cox regression analysis, cognitive impairment measured using age- and education-adjusted MMSE scores increased the risk of mortality (AHR: 2.842, 95% CI: 1.389-5.815, p = 0.004).

Conclusion

Even mild cognitive dysfunction measured preoperatively using the MMSE represents a potentially important risk factor for mortality after vascular surgery.

Examination of Coping Strategies among On-Site Paramedics

The occurrence of physical and psychological symptoms that negatively influence everyday activities, efficient job performance, and professional patient treatment are common among paramedic workers. Aim: We uncovered the characteristic coping strategies applied by on-site paramedics and searched for correlations between these strategies and demographic, socio-economic characteristics, as well as factors related to work, workplace, and health behaviours. Sample and methodology: The survey was conducted between March 1, 2018, and February 28, 2019, among employees of the DG National Ambulance Service and participants of the Chamber of Hungarian Health Care Professionals. We used an abbreviated version of the Ways of Coping Questionnaire that contains 22 items (WOC-22). Descriptive statistics, independent samples T-tests, correlation calculations, analysis of variance with the Games-Howell post-hoc test were also carried out. Results: Tension reduction was a more common coping strategy among female and/or single paramedics as well as also being characteristic of people who work as paramedic officers. Problem-oriented coping stood out as a characteristic of people who have a higher level of education and/or are more satisfied with their financial situation. Risk-seeking appears dominantly among those who are not religious and/or have a lower level of education. Conclusions: Although paramedics are basically characterized by problem-oriented coping strategies, they quite often apply non-adaptive strategies as well; consequently, the chance of developing anxiety remains higher for them. Our aim is to use effective intervention methods for curbing the development of anxiety conditions among the ambulance personnel that have long-lasting negative effects on health care. To achieve this goal, we recommend including a questionnaire about coping strategies into the admission process of would-be paramedics; also, completing such questionnaires among the whole emergency workforce.

Cost Assessment of Inpatient Care Episodes of Stroke in Romania

Introduction: Stroke is the second leading cause of death worldwide and Romania is no exception. There is a high economic burden associated with the treatment of stroke patients, which puts pressure on the healthcare budget. This study aims to measure the inpatient treatment costs of stroke patients in Romania. Methods: Our retrospective analysis follows stroke patients in six Romanian hospitals at different progressivity level from different regions. Patients are identified from the official hospital databases, reported for reimbursement purposes. Mean inpatient costs incurred with the treatment of these stroke patient episodes are calculated using the gross costing method. The cost data are derived from the management control system of the study hospitals. Results: 3,155 patient episodes of stroke were identified in the study hospitals. The average cost per stroke inpatient care episode sums up to EUR 995.57 (95% CI: EUR 963.74-EUR 1 027.39) in 2017, while the overall yearly healthcare burden adds up to EUR 140 million, representing 2.18% of the total national health insurance budget and a cost of EUR 7.15 per capita. Conclusion: The hospital cost of stroke inpatient care episode in Romania is high and it represents a sizable part of the healthcare budget, but it is among the lowest in Europe, which can mainly be explained by the level of economic development of the country. As both the number of patients and the cost of acute care are expected to increase in the future, the economic burden of stroke is also expected to increase.

Long-term psychological effects of pediatric cardiac surgery

Bevezetés: A korai életkorban szívsebészeti beavatkozáson átesett gyermekek fejlődése során fellépő viselkedési diszfunkciók jelentősen függenek a perioperatív szakban átélt eseményektől. Célkitűzés: A jelen vizsgálat célja, hogy feltárja a hosszú távú viselkedési változásokat a szívsebészeti beavatkozáson átesett gyermekek körében, és leírja azokat a perioperatív állapotokat, melyek befolyásolhatják a későbbi megküzdési mechanizmusokat. Módszer: 80, szívműtéten átesett és 62 egészséges kontroll adatait elemeztük. A pszichológiai status felmérése a vizsgálati időszakban a Megküzdési Módok Kérdőív, illetve a Gyermekviselkedési Kérdőív önértékelő kérdéssorának segítségével, míg a perioperatív adatok felvétele az intézeti adatbázisból retrospektíven történt. Eredmények: Az operált gyermekek körében mind a problémamegoldó, mind az érzelemközpontú megküzdési főskála szignifikánsan alacsonyabb értékeket mutatott az egészséges kontrollcsoporthoz képest. A Gyermekviselkedési Kérdőív önértékelő változata sem internalizáció, sem externalizáció tekintetében nem mutatott szignifikáns eltérést. A hosszú időn át inkomplett keringéssel rendelkező betegek és a kontrollcsoport között szignifikáns eltérést figyeltünk meg az érzelemközpontú megküzdés, illetve a szomatizáció terén, míg az acyanoticus és a kontrollcsoport között a problémaközpontú megküzdés alskáláin (problémaelemzés, alkalmazkodási képesség). A többszöri műtét mind az érzelem-, mind a problémaközpontú megküzdés alacsonyabb fokú aktivációjával összefüggést mutatott, és a hosszú kórházi tartózkodással együtt egy menekülő-elkerülő magatartásforma kialakulásához vezetett. Következtetés: Úgy tűnik, hogy a kialakult maladaptív viselkedési mechanizmusok jellege jelentősen függ az inkomplett keringés fennállásának időtartamától, a műtétek számától és a kórházi tartózkodás hosszától. A megküzdési stratégiák mozgósítása legfőképp csökkent érzelem- vagy problémaközpontú válaszkészségben, illetve a szomatizációs tendenciák és a menekülő-elkerülő magatartásforma felerősödésében nyilvánul meg. Orv Hetil. 2020; 161(42): 1787–1796.

Psychological factors affecting Marfan syndrome patients with or without cardiac surgery

BACKGROUND

Marfan syndrome (MFS) is a systemic connective tissue disorder belonging to a group of rare diseases. Several psychologically distressing factors can challenge life for MFS patients. The aim of the present study was, therefore, to assess the psychological and psychosocial aspects of MFS with the goal of identifying a means of improving disease management for patients.

METHODS

A total of 66 adult patients with MFS were enrolled into the study prospectively and were divided into operated (OP) and non-operated (NOP) subgroups. Multiple questionnaire tests were used to determine the mental and physical state of our patients. Demographic and surgical data were collected. The results of the tests were also compared to the Hungarostudy (HS) population (representing the average Hungarian population) by using a propensity-matched control.

RESULTS

OP group scores yielded more alcohol consumption (P<0.001), while NOP group showed more sleep disturbances. Scores on the MMSE, BECK, STAI and STAI-T tests showed no significant difference comparing the OP and NOP groups. MFS patients appear to have moderate pain-related disability and mild depressive symptoms and sleep disturbances (P<0.05) compared to the HS group. On 10-point scale, MFS patients were more satisfied with their lives (P<0.001) and considered themselves happier (P<0.001) than the HS population; however, they also spent more days on sick leave and in hospital over the past year. The HS group yielded a higher overall percentage of current smokers and pack-per-year consumption than the MFS patients overall (P=0.003 and P<0.001 respectively).

CONCLUSIONS

Marfan patients' psychosocial life differs in many ways (including sleep disturbances, healthier lifestyle, pain-related suffering) from the average Hungarian population. Therefore, as part of a multidisciplinary approach during treatment, modern management of MFS should include psychosocial exploration and psychological support in addition to traditional medical options.

Perioperative Low Tetraiodothyronine Levels and Adverse Outcomes After Heart Transplantation: A Retrospective, Observational Study

OBJECTIVES

Thyroid dysfunction has been shown to be associated with increased all-cause mortality and severity of chronic heart failure in critical illness and severe cardiac diseases. The present study was conducted to ascertain the relationship between perioperative free triiodothyronine and free tetraiodothyronine (fT4) levels and postoperative adverse outcomes after heart transplantation (HTX).

DESIGN

Retrospective, observational study.

SETTING

Single-center study in a quaternary care university clinical center.

PARTICIPANTS

The study comprised adult patients who underwent HTX between 2015 and 2019 and had at least 1 perioperative thyroid hormone laboratory test on the day of surgery or in the 24 hours before/after the procedure (free triiodothyronine, fT4, and thyroid-stimulating hormone).

INTERVENTIONS

No interventions were applied.

MEASUREMENTS AND MAIN RESULTS

The primary outcome was primary graft dysfunction (PGD), defined by the consensus conference of the International Society for Heart and Lung Transplantation. A total of 151 patients were included in the final analyses. Twenty-nine (19.2%) patients had PGD. Fourteen (9.3%) patients had low fT4 levels. An independent association was found between fT4 and PGD (odds ratio 6.49; 95% confidence interval 2.26-18.61; p = 0.001), with adjusted multivariate Cox regression models.

CONCLUSION

The perioperative fT4 level could be a prognostic marker of adverse outcomes in HTX. The authors suggest appropriate perioperative monitoring of fT4 levels. Additional research is warranted to examine the optimal timing, dosage, and method of replacement.

Model for end-stage liver disease scores in veno-arterial extracorporeal membrane oxygenation

INTRODUCTION

Veno-arterial extracorporeal membrane oxygenation is a valuable therapeutic approach in patients with severe heart failure due to different etiologies. Current prognosis with veno-arterial extracorporeal membrane oxygenation is unsatisfactory, and the risk stratification is still challenging. Therefore, we aimed to evaluate the predictive value of different baseline model for end-stage liver disease scores for survival in patients with veno-arterial extracorporeal membrane oxygenation.

METHODS

We conducted an observational, retrospective study of consecutive veno-arterial extracorporeal membrane oxygenation-treated patients between January 2012 and August 2018. The four types of model for end-stage liver disease scores-model for end-stage liver disease, international normalized ratio-excluded model for end-stage liver disease, modified model for end-stage liver disease, and model for end-stage liver disease with sodium-were calculated preoperatively. Veno-arterial extracorporeal membrane oxygenation was used based on the four clinical indications: primer graft failure after heart transplantation, weaning failure from cardiopulmonary bypass, acute myocardial infarction with refractory cardiogenic shock, and bridge to transplantation or bridge to candidacy. The primary endpoint of the study was overall mortality. The secondary endpoint was in-hospital mortality. We performed univariable and multivariable Cox regression analyses.

RESULTS

Data from 135 patients were analyzed. The median follow-up was 952 days (interquartile range = 417-1555 days). In-hospital mortality was 62.2%, and overall mortality was 71.1%. The multivariable Cox regression analysis is adjusted for indication, and the survival after veno-arterial extracorporeal membrane oxygenation score showed that the following scores were associated with overall mortality: model for end-stage liver disease (hazard ratio = 1.04; 95% confidence interval = 1.01-1.07; p = 0.016), modified model for end-stage liver disease (hazard ratio = 1.04; 95% confidence interval = 1.01-1.06; p = 0.006), and model for end-stage liver disease with sodium (hazard ratio = 1.05; 95% confidence interval = 1.02-1.08; p = 0.001).

CONCLUSION

Model for end-stage liver disease, modified model for end-stage liver disease, and model for end-stage liver disease with sodium scores could be useful in the risk stratification of veno-arterial extracorporeal membrane oxygenation treatment in varying clinical indications.

Routine aortic valve replacement followed by a myriad of complications: role of 3D printing in a difficult cardiac surgical case

Aortic valve replacement (AVR) is a routine cardiac surgical intervention that is rarely associated with severe complications. In this report, we present a complex and unique case following AVR in a middle-aged woman. We show the growing necessity for a strong cooperation between interventional cardiologists and cardiac surgeons, together with the emerging role of cardiac tomography based three-dimensional printing technique in planning and executing precision surgery within the chest.

Chylothorax after pediatric cardiac surgery complicates short-term but not long-term outcomes-a propensity matched analysis

BACKGROUND

The occurrence of postoperative chylothorax in children with congenital heart disease is a rare and serious complication in cardiac intensive care units (ICUs). The aim of our study was to identify the perioperative characteristics, treatment options, resource utilization and long term complications of patients having chylothorax after a pediatric cardiac surgery.

METHODS

Patients were retrospectively assessed for the presence of chylothorax between January 2002 and December 2012 in a tertiary national cardiac center. Occurrence, treatment options and long term outcomes were analyzed. Chylothorax patients less than 2 years of age were analyzed using propensity-matched statistical analysis in regard to postoperative complications after discharge.

RESULTS

During the 10-year period, 48 patients had chylothorax after pediatric cardiac surgery. The highest incidence was observed on the second postoperative day (7 patients, 14.6%). Seven patients (14.6% of the chylothorax population) died. During the follow up period, 5 patients had additional thromboembolic complications (2 had confirmed thrombophilia). Eleven patients had a genetic abnormality (3 had Down's syndrome, 3 had Di-Giorge's syndrome, 1 had an IgA deficiency and 4 had other disorders). During the reoperations (49 cases), no chylothorax occurred. After propensity matching, the occurrence of pulmonary failure (P=0.001) was significantly higher in the chylothorax group, and they required prolonged mechanical ventilation (P=0.002) and longer hospitalization times (P=0.01). After discharge, mortality and neurologic and thromboembolic events did not differ in the matched groups.

CONCLUSIONS

Chylothorax is an uncommon complication after pediatric cardiac surgery and is associated with higher resource utilization. Chylothorax did not reoccur during reoperations and was not associated with higher mortality or long-term complications in a propensity matched analysis.

Are vital exhaustion and depression independent risk factors for cardiovascular disease morbidity?

OBJECTIVE

The aim of this study was to examine the concurrent effects of vital exhaustion and depression on the development of cardiovascular disease (CVD) morbidity.

METHOD

The sample of this representative, 4-year longitudinal study comprised 2,725 participants (43.56% male, Mage = 58.39 years, SDage = 14.39 years). Individuals being treated for hypertension (n = 277) and cardio- and/or cerebrovascular incidents (n = 131) for the first time during the follow-up period were compared with participants never treated for CVD (n = 2,317). Joint principal component analysis was conducted on the items of the vital exhaustion (shortened Maastricht Questionnaire) and depression (shortened Beck Depression Inventory) measures simultaneously resulting in 3 components representing depression, vital exhaustion, and sleep difficulties. The role of these 3 components in predicting the incidence of CVD morbidity was examined using logistic regression-controlling for traditional risk factors such as sex, age, education, body mass index, smoking, alcohol use, and physical inactivity.

RESULTS

In the multivariate analyses, vital exhaustion (OR = 1.20, CI = 1.03-1.39, p = .021) and sleep-related problem (OR = 1.16, CI = 1.00-1.33, p = .044) scores proved to be independent predictors of treatment initiation for hypertension, while sleep-related difficulties predicted CVD event incidence (OR = 1.27, CI = 1.06-1.52, p = .009). However, depressive symptomatology factor scores were not associated with either cardiovascular outcome in the regression analyses.

CONCLUSIONS

Vital exhaustion and depressive symptomatology showed a different pattern in their relationship with CVD incidence, with vital exhaustion being the more robust predictor. These results suggest that the 2 constructs are not identical and that vital exhaustion deserves consideration when planning and implementing interventions to reduce CVD risk. (PsycINFO Database Record

Risk factors for multiple suicidality in Hungary

Introduction

Suicide rate in Hungary is among the highest in the European Union (2015: 18.9/100,000 inhabitant). Although there is no national registration system of suicide attempts in Hungary, according to previous studies Hungarian Romas have three times higher suicide attempt rate than non-Romas.

Objectives

The aim of this study was to explore socio-demographic and mental health risk factors of multiple suicide attempts in Hungary.

Methods

A total of 1547 suicide attempts were assessed via retrospective data analysis using patient records. Data on socio-demographic variables, psychiatric diagnoses, methods and reported reasons of suicide attempts were investigated. Binary logistic regression analyses were performed to identify potential risk factors for multiple suicide attempts.

Results

The ratio of multiple attempters were 37.7% in the sample, with a Roma predominance (Roma: 51.8%, non-Roma: 34.8%, χ2(1) = 27.64; P < 0.001). Of the potential factors examined, Roma ethnicity (OR: 2,03; CI: 1.53–2.70; P < 0.001), economic inactivity (OR: 1.7; CI: 1.36–2.18; P < 0.001), mood disorders (OR: 1.58; CI: 1.25–1.99; P < 0.001), personality disorders (OR: 2.09; CI: 1.45–3.01; P = 0.00), organic mental disorders (OR: 1.76; CI: 1.01–3.07; P = 0.44) and mistreatment as reported reasons (OR: 3.95; CI: 1.17–13.32; P = 0.02) were found as significant risk factors of multiple suicide attempts.

Conclusion

National registration of suicide attempts would be necessary for a more thorough analysis. Beside the more advanced treatment of mental health disorders, increased efforts in prevention are recommended with a special focus of low SES groups and Roma ethnicity. The specific background factors in Roma ethnic group should be further examined.

Disclosure of interest

The authors have not supplied their declaration of competing interest.

Community-based 4-level approach: Background, implementation and evidence for efficacy

The community-based 4-level-intervention concept developed within the “European Alliance against Depression” (http://www.eaad.net/) combines two important aims: to improve the care and treatment of patients with depression and to prevent suicidal behavior. It has been shown to be effective concerning the prevention of suicidal behavior [1–4] and is worldwide the most broadly implemented community-based intervention targeting depression and suicidal behavior. The 4-level intervention concept comprises training and support of primary care providers (level 1), a professional public relation campaign (level 2), training of community facilitators (teacher, priests, geriatric caregivers, pharmacists, journalists) (level 3), and support for self-help of patients with depression and for their relatives (level 4). In order to deepen the understanding of factors influencing the effectiveness of the intervention, a systematic implementation research and process analysis was performed within the EU-funded study “Optimizing Suicide Prevention Programs and Their Implementation in Europe” (http://www.ospi-europe.com/; 7th Framework Programme) [5]. These analyses were based on data from four intervention and four control regions from four European countries. In addition to intervention effects on suicidal behaviour, a variety of intermediate outcomes (e.g. changes in attitude or knowledge in different populations) were considered. Strong synergistic as well as catalytic effects were identified as a result of being active simultaneously at four different levels. Predictable and unpredictable obstacles to a successful implementation of such community-based programs will be discussed. Via the EAAD, the intervention concept and materials (available in eight different languages) are offered to interested region in and outside of Europe.

Disclosure of interest

The authors have not supplied their declaration of competing interest.

[Mechanical circulatory support saves lives -- three years' experience of the newly established assist device program at Semmelweis University, Budapest, Hungary]

INTRODUCTION

Since the celebration of the 20th anniversary of the first heart transplantation in Hungary in 2012 the emerging need for modern heart failure management via mechanical circulatory support has evolved. In May 2012 the opening of a new heart failure and transplant unit with 9 beds together with the procurement of necessary devices at Semmelweis University accomplished this need.

AIM

The aim of the authors was to report their initial experience obtained in this new cardiac assist device program.

METHOD

Since May, 2012, mechanical circulatory support system was applied in 89 cases in 72 patients. Indication for support were end stage heart failure refractory to medical treatment and acute left or right heart failure.

RESULTS

Treatment was initiated for acute graft failure after heart transplantation in 27 cases, for end stage heart failure in 24 cases, for acute myocardial infarction in 21 cases, for acute postcardiotomy heart failure in 14 cases, for severe respiratory insufficiency in 2 cases and for drug intoxication in one case. Among the 30 survivor of the whole program 13 patients were successfully transplanted.

CONCLUSIONS

The available devices can cover all modalities of current bridge therapy from short term support through medium support to heart transplantation or long term support and destination therapy. These conditions made possible the successful start of a new cardiac assist device program.

Impact of the insulin and glucose content of the postoperative fluid on the outcome after pediatric cardiac surgery

INTRODUCTION

The aim of this study was to investigate the role of the insulin and glucose content of the maintenance fluid in influencing the outcomes of pediatric patients undergoing heart surgery.

METHODS

A total of 2063 consecutive pediatric patients undergoing cardiac surgery were screened between 2003 and 2008. A dextrose and an insulin propensity-matched group were constructed. In the dextrose model, 5% and 10% dextrose maintenance infusions were compared below 20 kg of weight.

RESULTS

A total of 171 and 298 pairs of patients were matched in the insulin and glucose model, respectively. Mortality was lower in the insulin group (12.9% vs. 7%, p = 0.049). The insulin group had longer intensive care unit (ICU) stay [days, 10.9 (5.8-18.4) vs. 13.7 (8.2-21), p = 0.003], hospital stay [days, 19.8 (13.6-26.6) vs. 22.7 (17.6-29.7), p < 0.01], duration of mechanical ventilation [hours, 67 (19-140) vs. 107 (45-176), p = 0.006], and the incidence of severe infections (18.1% vs. 28.7%, p = 0.01) and dialysis (11.7% vs. 24%, p = 0.001) was higher. In the dextrose model, the incidence of pulmonary complications (13.09% vs. 22.5%, p < 0.01), low cardiac output (17.11% vs. 30.9%, p < 0.01), and severe infections (10.07% vs. 20.5%, p < 0.01) was higher, and the duration of the hospital stay [days, 16.4 (13.1-21.6) vs. 18.1 (13.8-24.6), p < 0.01] was longer in the 10% dextrose group.

CONCLUSIONS

Insulin treatment appeared to decrease mortality, and lower glucose content was associated with lower occurrence of adverse events.

Self-rated health is associated with the length of stay at the intensive care unit and hospital following cardiac surgery

Background

Recently, a considerable amount of evidence suggested that anxiety, depression and other psychosocial variables might influence the outcomes of cardiac surgery. This study investigated the relationship between length of stay at the intensive care unit (ICU) and hospital after surgery and different psychosocial variables (e.g. depression, anxiety, self rated health, happiness, satisfaction).

Methods

We enrolled prospective patients who were waiting for elective cardiac surgery (N = 267) and consented to take part in the study. We collected data of sociodemographic, medical and perioperative factors as well as psychosocial questionnaires completed 1.56 days (standard deviation [SD] = 0.7) before surgery. The primary clinical endpoint was an ICU stay of at least 3 days and the secondary was hospital stay of at least 10 days.

Results

Two hundred sixty-seven patients participated in this study. Four patients (1.5%) died in the hospital and 38 patients (14.5%) spent more than 3 days in the ICU and 62 patients (23.2%) spent more than 10 days in the hospital. After controlling for medical and sociodemographic factors, lower self rated health (Adjusted Odds Ratio [AOR]: 0.51, 95% confidence interval [CI]: 0.28-0.95; p = 0.03), lower rate of happiness (AOR: 0.76, 95% CI: 0.59-0.97, p = 0.03), postoperative cardiac failure (AOR: 7.09, 95% CI:1.21-41.54; p = 0.03) and postoperative complications (AOR: 9.52, 95% CI: 3.76-24.11; p < 0.001) were associated with longer ICU stay. More than 10 days of hospital stay was associated with higher occurrence of COPD (AOR 4.56, CI: 1.95-10.67, p < 0.001), NYHA stage (AOR 6.76, CI: 2.57-17.79, p < 0.001), operation time (AOR 1.45, CI: 1.19-1.76, p < 0.001), female gender (AOR 2.16, CI: 1.06-4.40, p = 0.034) and lower self-rated health (AOR 0.63, CI: 0.41-0.99, p = 0.044).

Conclusions

Lower happiness and self-rated health may influence the outcome of cardiac surgery. Therefore, these variables should be assessed in patients.

Assessment of global tissue perfusion and oxygenation in neonates and infants after open-heart surgery

OBJECTIVES

Monitoring and preserving adequate perfusion and oxygen balance is a primary objective of critical care. This prospective observational study aimed to assess the relationship between global haemodynamic parameters and variables reflecting tissue oxygenation during the early period following corrective cardiac surgery in neonates and infants. The postoperative time course of oxygen delivery and consumption was evaluated. As surrogate markers of oxygen balance, the central venous oxygen saturation (ScvO2) and venoarterial PCO2 difference (PvaCO2) were thoroughly investigated.

METHODS

Thirteen children <1 year of age who underwent open-heart surgery were prospectively enrolled. In addition to conventional postoperative monitoring, transpulmonary thermodilution (TPTD) was used to monitor cardiac output and calculate oxygen delivery and consumption. In parallel with each TPTD measurement, arterial and central venous blood gas values were recorded. Global haemodynamic parameters and oxygenation measurements were compared with weighted linear regression statistics and Pearson's correlation coefficient.

RESULTS

Data from 145 TPTD measurements and 304 blood gas samples were recorded. The early postoperative period was characterized by a supply-dependent oxygen consumption, as demonstrated by the direct correlation between the change in oxygen delivery and consumption (r = 0.62, P < 0.001). Regarding haemodynamic parameters, none of the heart rate, mean arterial pressure or cardiac index correlated with the measured ScvO2. However, the ScvO2 and PvaCO2 were found to correlate significantly (r = -0.49, P < 0.001), and both strongly related to oxygen extraction.

CONCLUSIONS

Both the ScvO2 and PvaCO2 are reliable and comparable parameters in following tissue oxygen balance during the early postoperative course after open-heart surgery in neonates and infants. As part of multiparameter monitoring, our data highlight the importance of regular ScvO2 measurements and PvaCO2 calculations in paediatric intensive care.

Reducing mortality in acute kidney injury patients: systematic review and international web-based survey

OBJECTIVE

To identify all interventions that increase or reduce mortality in patients with acute kidney injury (AKI) and to establish the agreement between stated beliefs and actual practice in this setting.

DESIGN AND SETTING

Systematic literature review and international web-based survey.

PARTICIPANTS

More than 300 physicians from 62 countries.

INTERVENTIONS

Several databases, including MEDLINE/PubMed, were searched with no time limits (updated February 14, 2012) to identify all the drugs/techniques/strategies that fulfilled all the following criteria: (a) published in a peer-reviewed journal, (b) dealing with critically ill adult patients with or at risk for acute kidney injury, and (c) reporting a statistically significant reduction or increase in mortality.

MEASUREMENTS AND MAIN RESULTS

Of the 18 identified interventions, 15 reduced mortality and 3 increased mortality. Perioperative hemodynamic optimization, albumin in cirrhotic patients, terlipressin for hepatorenal syndrome type 1, human immunoglobulin, peri-angiography hemofiltration, fenoldopam, plasma exchange in multiple-myeloma-associated AKI, increased intensity of renal replacement therapy (RRT), CVVH in severely burned patients, vasopressin in septic shock, furosemide by continuous infusion, citrate in continuous RRT, N-acetylcysteine, continuous and early RRT might reduce mortality in critically ill patients with or at risk for AKI; positive fluid balance, hydroxyethyl starch and loop diuretics might increase mortality in critically ill patients with or at risk for AKI. Web-based opinion differed from consensus opinion for 30% of interventions and self-reported practice for 3 interventions.

CONCLUSION

The authors identified all interventions with at least 1 study suggesting a significant effect on mortality in patients with or at risk of AKI and found that there is discordance between participant stated beliefs and actual practice regarding these topics.

Down syndrome and postoperative complications after paediatric cardiac surgery: a propensity-matched analysis

OBJECTIVES

The incidence of congenital heart disease is ~50%, mostly related to endocardial cushion defects. The aim of our study was to investigate the postoperative complications that occur after paediatric cardiac surgery.

METHODS

Our perioperative data were analysed in paediatric patients with Down syndrome undergoing cardiac surgery. We retrospectively analysed the data from 2063 consecutive paediatric patients between January 2003 and December 2008. After excluding the patients who died or had missing data, the analysed database (before propensity matching) contained 129 Down patients and 1667 non-Down patients. After propensity matching, the study population comprised 222 patients and 111 patients had Down syndrome.

RESULTS

Before propensity matching, the occurrences of low output syndrome (21.2 vs 32.6%, P = 0.003), pulmonary complication (14 vs 28.7%, P < 0.001) and severe infection (11.9 vs 22.5%, P = 0.001) were higher in the Down group. Down patients were more likely to have prolonged mechanical ventilation [median (interquartile range) 22 (9-72) h vs 49 (24-117) h, P = 0.007]. The total intensive care unit length of stay [6.9 (4.2-12.4) days vs 8.3 (5.3-13.2) days, P = 0.04] and the total hospital length of stay [17.3 (13.3-23.2) days vs 18.3 (15.1-23.6) days, P = 0.05] of the Down patients were also longer. Mortality was similar in the two groups before (3.58 vs 3.88%, P = 0.86) and after (5.4 vs 4.5%, P = 1.00) propensity matching. After propensity matching, there was no difference in the occurrence of adverse events.

CONCLUSIONS

After propensity matching Down syndrome was not associated with increased mortality or complication rate following congenital cardiac surgery.

Postoperative differences between colonization and infection after pediatric cardiac surgery-a propensity matched analysis

Background

The objective of this study was to identify the postoperative risk factors associated with the conversion of colonization to postoperative infection in pediatric patients undergoing cardiac surgery.

Methods

Following approval from the Institutional Review Board, patient demographics, co-morbidities, surgery details, transfusion requirements, inotropic infusions, laboratory parameters and positive microbial results were recorded during the hospital stay, and the patients were divided into two groups: patients with clinical signs of infection and patients with only positive cultures but without infection during the postoperative period. Using propensity scores, 141 patients with infection were matched to 141 patients with positive microbial cultures but without signs of infection. Our database consisted of 1665 consecutive pediatric patients who underwent cardiac surgery between January 2004 and December 2008 at a single center. The association between the patient group with infection and the group with colonization was analyzed after propensity score matching of the perioperative variables.

Results

179 patients (9.3%) had infection, and 253 patients (15.2%) had colonization. The occurrence of Gram-positive species was significantly greater in the colonization group (p = 0.004). The C-reactive protein levels on the first and second postoperative days were significantly greater in the infection group (p = 0.02 and p = 0.05, respectively). The sum of all the positive cultures obtained during the postoperative period was greater in the infection group compared to the colonization group (p = 0.02). The length of the intensive care unit stay (p < 0.001) was significantly longer in the infection group compared to the control group.

Conclusions

Based on our results, we uncovered independent relationships between the conversion of colonization to infection regarding positive S. aureus and bloodstream results, as well as significant differences between the two groups regarding postoperative C-reactive protein levels and white blood cell counts.