Survey of specialized tertiary care facilities for adults with congenital heart disease

Implications of Transfusion in Adults with Congenital Heart Disease Undergoing Cardiac Surgery

The number of adults with congenital heart disease (CHD) requiring cardiovascular (CV) surgery is increasing rapidly in today's era. We hypothesized that exposure to perioperative blood products is associated with worse outcomes in adults. All adults (≥ 18 years old) undergoing CV surgery with Cardio-Pulmonary Bypass (CPB) between 2015 and 2020 were reviewed retrospectively. Associations between transfusion and outcomes were studied by univariable logistic regression and Wilcoxon rank sum tests. Cox/ logistic regression was used to assess (a) postoperative ventilation time and length of stay, and (b) major complications, respectively. Of 323 patients, 170 (53%) received blood products perioperatively. The median age was 27 (interquartile range [IQR]: 22-36) years, there were 181 (46%) males, and 16 (5%) patients had single ventricle anatomy. Patients receiving products experienced more complications (OR: 6.6, 95% CI: [2.9, 14.7], p < 0.001) specifically, cardiac arrest (OR: 8.8, 95% CI: [1.1, 71.9], p = 0.04). Transfusion was associated with greater frequency of thrombosis ((OR: 7.8, 95% CI: [1.8, 34.7], p = 0.01)), longer ventilation time (HR: 3.0, 95% CI: [2.4, 3.9], p < 0.001), and longer hospital length of stay (HR: 2.7, 95% CI: [2.1, 3.4], p < 0.001). Longer CPB time (OR: 1.0, 95% CI: [1.0, 1.1], p < 0.001) and prior cardiac surgery (OR: 1.6, 95% CI: [1.3, 2.1], p < 0.001) were independent predictors of perioperative blood product transfusion. Adults who received perioperative blood products experienced more complications and worse in-hospital outcomes. Future research on optimizing blood product transfusion based on risk prediction is needed to optimize outcomes in adults with CHD.

Association Between Maternal Race and the Occurrence of Cyanotic Congenital Heart Disease in the USA

Overall mortality due to congenital heart disease in the United States declined between 1999 and 2017. However, disparities still exist in occurrence and mortality rates among specific racial/ethnic groups in the USA. This study aims to find the association between maternal race and the occurrence of Cyanotic Congenital Heart Disease (CCHD) in the USA. We carry out analysis on a secondary dataset (2017 Natality) obtained from the US Centers for Disease Control and Prevention. This was analyzed using descriptive, bivariate, and regression analysis. This cross-sectional study obtained sociodemographic information-maternal race, independent and confounder variables (explanatory variables), and the occurrence of Cyanotic Congenital Heart Disease (outcome variable) within the reporting States and U.S. territories. There was a report of 3,864,754 live birth out of 325,719,178 USA races and origin populations for the 2017 review year. A total number of 2130 CCHD birth was reported to have occurred out of the 3,8161,947 live births. The Chi-square test showed a statistically significant association between maternal race and the occurrence of CCHD. As well as, the following confounders mother's age, mother's nativity, combined gestation, pre-pregnancy diabetes, pre-pregnancy hypertension, month prenatal care began, smoking status, and Nutrition (WIC) all having a p-value of 0.01 each, respectively. Unadjusted odds ratios at 95 % CI of the association between maternal race and CCHD were 56 % higher among American Indian and Alaska Native women (95% CI 1.13-2.15) than the white racial group. In addition, the Odds were 13% (95% CI 0.78-0.98) and 46% (95% CI 0.43-0.66) less likely amongst Black and Asian or Pacific Islander, respectively. The odds were 402% markedly high for pre-pregnancy diabetes, 159% for pre-pregnancy hypertension, 38 % for smoking status, and 44%, 159%, and 42% respectively for prenatal care from 1st to 2nd months, 4th to 6th months, and 7th to the final month, when compared to no prenatal care. The odds of having a CCHD was 16% less likely for mothers on Nutrition (mothers on WIC) (95% CI 0.77-0.92), 19% (95% CI 0.73-0.90) for mothers age (under 35 years) category, and likewise for mothers born outside of the USA at 39% (95% CI 1.22-1.56). On Adjustment for confounders, the OR for this relationship was on the higher side for many of the variables. The odds of occurrence of CCHD were 59 % higher amongBlack (95% CI 1.27-2.0), 35% among AIAN (95 % CI 1.05-1.74), and 92 % among American Indian and Alaska Native (95 % CI 1.26-2.93) racial categories whencompared to Asian or Pacific Islander categories. The odds of having a CCHD was also elevated on adjustment for mothers born outside of the USA at 39% (95% CI 1.22-1.56), and at from the 7th to final month 94% (95% CI 1.38-2.73). However, the odds were insignificant in other categories and variables. These estimates suggest theoccurrence of a CCHD is associated with the analyzed independent predictor and confounder variables. An association exists between maternal race and the occurrence of cyanotic congenital heart disease in the USA. Further research in this area, may therefore help to diminish the occurrence, morbidity, and or mortality of CCHD in America and globally as well.

Population and Resource Utilization Among Patients With Adult Congenital Heart Disease: A Snapshot View of a Moderate-Size Canadian Regional Centre

BACKGROUND

Health care resource utilization for patients with adult congenital heart disease (ACHD) has not been well characterized outside of large Canadian specialized regional centres. We sought to describe the ACHD population and resource utilization patterns seen in a medium regional Canadian centre providing specialized ACHD care.

METHODS

A cross-sectional retrospective study was done from a sample of patients seen in 2018 at the ACHD clinic in Manitoba, Canada. Demographic data were collected along with cardiac anatomy and repair type. Health care resource utilization, clinic visits, hospital admissions, unexpected hospital presentations, and cardiac interventions were measured over a 5-year period.

RESULTS

A random sample of 262 patients was selected from our specialized ACHD clinic. Mean age was 33.5 (±13.7) years; 48% of the population was female, and >50% resided within the major city limits. A total of 21% of the population had simple anatomy, 44% had moderate anatomy, and 35% had complex anatomy. The most commonly used imaging modality was echocardiography, followed by cardiac magnetic resonance imaging, with more frequent imaging done in patients with complex anatomy. Unexpected hospital encounters occurred at a rate of 16 per 100 person-years. Total inpatient hospital days occurred at a rate of 33 per 100 person-years, and visits to the congenital clinic occurred at a rate of 90 per 100 person-years.

CONCLUSIONS

Health care resource utilization appears to be highest in older adults and those with more complex ACHD anatomy. As the overall cohort of adults with ACHD continues to age, resource needs are likely to increase.

European Society of Cardiology Working Group on Adult Congenital Heart Disease and Study Group for Adult Congenital Heart Care in Central and South Eastern European Countries consensus paper: current status, provision gaps and investment required

AIMS

To examine the current status of care and needs of adult congenital heart disease (ACHD) services in the Central and South Eastern European (CESEE) region.

METHODS AND RESULTS

We obtained data regarding the national ACHD status for 19 CESEE countries from their ACHD representative based on an extensive survey for 2017 and/or 2018. Thirteen countries reported at least one tertiary ACHD centre with a median year of centre establishment in 2007 (interquartile range 2002-2013). ACHD centres reported a median of 2114 patients under active follow-up with an annual cardiac catheter and surgical intervention volume of 49 and 40, respectively. The majority (90%) of catheter or surgical interventions were funded by government reimbursement schemes. However, all 19 countries had financial caps on a hospital level, leading to patient waiting lists and restrictions in the number of procedures that can be performed. The median number of ACHD specialists per country was 3. The majority of centres (75%) did not have ACHD specialist nurses. The six countries with no dedicated ACHD centres had lower Gross Domestic Product per capita compared to the remainder (P = 0.005).

CONCLUSION

The majority of countries in CESEE now have established ACHD services with adequate infrastructure and a patient workload comparable to the rest of Europe, but important gaps still exist. ACHD care is challenged or compromised by limited financial resources, insufficient staffing levels, and reimbursement caps on essential procedures compared to Western Europe. Active advocacy and increased resources are required to address the inequalities of care across the continent.

Surgical management of CHD in the adult population: the role of humanitarian cardiac surgery mission in Nigeria

BACKGROUND

The clinical effects of CHD can occur during the neonatal period, childhood, adolescent, and even adulthood. Some CHD in the adult population have indications for surgical management.

OBJECTIVE

The objective of this study was to review the role of humanitarian cardiac surgery missions in the surgical management of CHD in the adult population in a developing country.Materials and methodOver a 5.5-year period - June, 2003, February, 2013-October, 2017 - five different humanitarian cardiac surgery teams visited National Cardiothoracic Center of Excellence, Nigeria. During the period, they operated on adults with CHD. A retrospective study of the patients treated was performed using data obtained from our Hospital Information Technology Department. The demography of the patients, types of CHD, operative modalities, as well as the outcome was analysed using Microsoft Excel. The results were presented in arithmetic of percentages using tables.

RESULTS

During the period, a total of 18 CHD patients were treated.

Health-care transition after Kawasaki disease in patients with coronary artery lesion

BACKGROUND

Discussion of health-care transition (HCT) for adults with a childhood history of coronary artery lesions (CAL) after Kawasaki disease (KD) is important. A nationwide questionnaire survey was performed with support by the Japanese Society of Kawasaki Disease. The purpose of this study was to clarify the reality of HCT and loss to follow-up in patients with CAL after KD.

METHODS

The survey was emailed to 48 members of the Japanese Society of Kawasaki Disease from May to July 2014.

RESULTS

Forty surveys were collected, giving a response rate of 83.3%. Sixty-five percent of the respondents belonged to a university hospital. Approximately 90% of the respondents dealt with patients who needed HCT, and 55% had patients who completed HCT. Approximately 70% of the respondents considered that pediatricians should continue sharing HCT information with cardiologists. More than 95% of the respondents had a favorable or average impression of HCT care provided by cardiologists. The percentage of respondents who had loss to follow up for HCT was >40%.

CONCLUSION

Adult cardiologists began managing patients with CAL after KD in more than half of the institutes in this study. Pediatricians should construct a support program for better management of these patients and for cooperation with cardiologists to prevent loss to follow up.

Recommendations for starting a grown up congenital heart disease (GUCH) unit

During the last decades, advances in diagnosis and treatment of congenital heart disease have allowed many individuals to reach adulthood. Due mainly to the great diagnostic diversity and to the co-morbidities usually present in this age group, these patients demand assistance in a multidisciplinary facility if an adequate attention is aimed. In this paper we reviewed, based in the international literature and also on the authors' experience, the structural conditions that should be available for these patients. We highlighted aspects like the facility characteristics, the criteria usually adopted for patient transfer from the paediatric setting, the composition of the medical and para- medical staff taking into account the specific problems, and also the model of outpatient and in-hospital assistance. We also emphasized the importance of patient data storage, the fundamental necessity of institutional support and also the compromise to offer professional training. The crucial relevance of clinical research is also approached, particularly the development of multicenter studies as an appropriate methodology for this heterogeneous patient population.

The importance of national and international collaboration in adult congenital heart disease: A network analysis of research output

BACKGROUND

The determinants of adult congenital heart disease (ACHD) research output are only partially understood. The heterogeneity of ACHD naturally calls for collaborative work; however, limited information exists on the impact of collaboration on academic performance. We aimed to examine the global topology of ACHD research, distribution of research collaboration and its association with cumulative research output.

METHODS AND RESULTS

Based on publications presenting original research between 2005 and 2011, a network analysis was performed quantifying centrality measures and key players in the field of ACHD. In addition, network maps were produced to illustrate the global distribution and interconnected nature of ACHD research. The proportion of collaborative research was 35.6 % overall, with a wide variation between countries (7.1 to 62.8%). The degree of research collaboration, as well as measures of network centrality (betweenness and degree centrality), were statistically associated with cumulative research output independently of national wealth and available workforce. The global ACHD research network was found to be scale-free with a small number of central hubs and a relatively large number of peripheral nodes. In addition, we could identify potentially influential hubs based on cluster analysis and measures of centrality/key player analysis.

CONCLUSIONS

Using network analysis methods the current study illustrates the complex and global structures of ACHD research. It suggests that collaboration between research institutions is associated with higher academic output. As a consequence national and international collaboration in ACHD research should be encouraged and the creation of an adequate supporting infrastructure should be further promoted.

Unscheduled hospitalization in adults with congenital heart disease

BACKGROUND AND OBJECTIVES

Little information is available regarding adult patients with congenital heart disease (CHD) who needed unscheduled hospitalization (USH). This paper aims to elucidate the clinical features of adult patients with CHD requiring USH.

SUBJECTS AND METHODS

Study subjects included patients with CHD aged 18 years or older who were hospitalized at our facility during a 5-year study period. Medical records were retrospectively reviewed and data regarding USH were collected. Patient's background, underlying heart disease, cause of hospitalization, and prognosis (second USH regardless of cause or death) were examined.

RESULTS

Overall, 959 CHD patients underwent a total of 1761 hospitalizations, including 145 patients who were unexpectedly hospitalized 239 times. The median age at USH was 27 years old. Of the 959 patients, 54% were male. Underlying heart diseases included repaired tetralogy of Fallot (21%), single ventricular physiology after Fontan operation (17%), and Eisenmenger syndrome (12%). The causes of USH included arrhythmia (40%), heart failure (20%), infectious disease (13%), and hemorrhage or thrombus (13%). A total of 48 patients required readmission. In total, 13 patients died, including four hospital deaths. The USH-free survival rate was 77% for 1 year and 58% for 3 years.

CONCLUSION

The rate of USH was high for adults with complicated CHD. Common causes of USH included arrhythmia, heart failure, hemorrhage-related or thrombus-related conditions and infection. These data provide the current status of medical care for adult CHD patients in Japan and their therapeutic needs.

Fontan completions over 10 years after Glenn procedures

OBJECTIVE

Despite the broadened indications for Fontan procedure, there are patients who could not proceed to Fontan procedure because of the strict Fontan criteria during the early period. Some patients suffer from post-Glenn complications such as hypoxia, arrhythmia, or fatigue with exertion long after the Glenn procedure. We explored the possibility of Fontan completion for those patients.

METHODS

Between 2004 and 2010, five consecutive patients aged between 13 and 31 years (median 21) underwent Fontan completion. These patients had been followed up for more than 10 years (10 to 13, median 11) after Glenn procedure as non-Fontan candidates. We summarise these patients retrospectively in terms of their pre-operative physiological condition, surgical strategy, and problems that these patients hold.

RESULTS

Pre-operative catheterisation showed pulmonary vascular resistance ranging from 0.9 to 3.7 (median 2.2), pulmonary to systemic flow ratio of 0.3 to 1.6 (median 0.9), and two patients had significant aortopulmonary collaterals. Extracardiac total cavopulmonary connections were performed in three patients, lateral tunnel total cavopulmonary connection in one patient, and intracardiac total cavopulmonary connection in one patient, without a surgical fenestration. Concomitant surgeries were required including valve surgeries--atrioventricular valve plasty in three patients and tricuspid valve replacement in one patient; systemic outflow tract obstruction release--Damus-Kaye-Stansel procedure in two patients and subaortic stenosis resection in one patient; and anti-arrhythmic therapies--maze procedure in two patients, cryoablation in two patients, and pacemaker implantation in two patients. All patients are now in New York Heart Association category I.

CONCLUSION

Patients often suffer from post-Glenn complications. Of those, if they are re-examined carefully, some may have a chance to undergo Fontan completion and benefit from it. Multiple lesions such as atrioventricular valve regurgitation, systemic outflow obstruction, or arrhythmia should be surgically repaired concomitantly.

Referral patterns and perceived barriers to adult congenital heart disease care: results of a survey of U.S. pediatric cardiologists

OBJECTIVES

This study sought to elucidate referral patterns and barriers to adult congenital heart disease (ACHD) care, as perceived by pediatric cardiologists (PCs).

BACKGROUND

Management guidelines recommend that care of adults with moderate/complex congenital heart disease be guided by clinicians trained in ACHD.

METHODS

A cross-sectional survey was distributed to randomly selected U.S. PCs.

RESULTS

Overall response rate was 48% (291 of 610); 88% (257 of 291) of respondents met inclusion criteria (outpatient care to patients >11 years of age). Participants were in practice for 18.2 ± 10.7 years; 70% were male, and 72% were affiliated with an academic institution; 79% stated that they provide care to adults (>18 years). The most commonly perceived patient characteristic prompting referral to ACHD care was adult comorbidities (83%). The most perceived barrier to ACHD care was emotional attachment of parents and patients to the PC (87% and 86%, respectively). Clinician attachment to the patient/family was indicated as a barrier by 70% of PCs and was more commonly identified by responders with an academic institutional affiliation (p = 0.001). A lack of qualified ACHD care providers was noted by 76% of PCs. Those affiliated with an academic institution were less likely to identify this barrier to ACHD care (p = 0.002).

CONCLUSIONS

Most PC respondents in the United States provide care to ACHD patients. Common triggers that prompt referral and perceived barriers to ACHD care were identified. These findings might assist ACHD programs in developing strategies to identify and retain patients, improve collaborative care, and address emotional needs during the transition and transfer process.

Parental knowledge regarding lifelong congenital cardiac care

OBJECTIVE

To assess parental knowledge regarding lifelong congenital cardiac care (LLCCC).

BACKGROUND

National guidelines recommend that nearly 50% of adult survivors with congenital heart disease (CHD) receive LLCCC; the number of adults who receive such care seems far less. Inadequate parental knowledge of LLCCC might contribute to care interruption.

METHODS

In this multicenter study, we administered a questionnaire to parents of children with moderate and complex CHD to assess knowledge of LLCCC.

RESULTS

A total of 500 parents participated; the median age of their children was 10 years (range: 2-18 years). Most parents (81%) understood that their child would need LLCCC, but only 44% recognized that their child's cardiology care should be guided by an adult congenital heart specialist in adulthood. More than half (59%) of the parents stated that their current cardiology team had never spoken to them about LLCCC, but 96% wished to learn more. Variables associated with parental LLCCC knowledge included previous discussions regarding LLCCC, underlying cardiac surgical diagnosis, and level of parental education.

CONCLUSIONS

A substantial number of parents of children with moderate and complex CHD lack knowledge about LLCCC, but almost all of them have a desire to learn more about the care their child will need as an adult.

Follow-up of tetralogy of Fallot patients: tertiary centre versus satellite clinic

BACKGROUND

Canadian Cardiovascular Society consensus guidelines recommend that tetralogy of Fallot patients be seen by a congenital cardiologist every 2 years. In Atlantic Canada, tetralogy of Fallot patients are followed up at either tertiary or satellite clinics, which are held in the community and attended by paediatric cardiologists. The effectiveness of satellite clinics in congenital cardiac disease follow-up is unproven. Our objective was to compare patient-reported quality of life measures to determine whether these were impacted by the site of follow-up.

METHODS

We included patients with tetralogy of Fallot undergoing surgical repair at the Izaak Walton Killam Health Centre from 1 November, 1972 to 31 May, 2002. Quality of life surveys, SF-10 or SF-36v2, were administered to consenting patients. We analysed the subjective health status by patient age and site of follow-up.

RESULTS

Of the 184 eligible patients, 72 were lost to follow-up. Of the locatable patients, 61% completed the questionnaires. In all, 90% (101 out of 112) were followed up at recommended intervals. Of the 112 (68%) patients, 76 were followed up at a tertiary clinic. These patients were older, with a mean age of 18.4 years versus 14.7 years, and scored higher on the SF-36 physical component summary (52.6 versus 45.7, p = 0.02) compared with satellite clinic patients. The SF-36 mental component summary scores were similar for patients regardless of the site of follow-up. SF-10 physical and psychosocial scores were similar regardless of the site of follow-up.

CONCLUSION

Tetralogy of Fallot patients followed at either satellite or tertiary clinics have similar subjective health status.

Opinions of physicians regarding problems and tasks involved in the medical care system for patients with adult congenital heart disease in Japan

BACKGROUND

The aim of this study is to summarize the opinions of physicians regarding problems and tasks involved in the medical care system for patients with adult congenital heart disease (ACHD) in Japan.

METHODS AND RESULTS

We conducted a semistructured interview with 30 subjects consisting of 13 pediatric cardiologists, 11 cardiovascular surgeons, and six cardiologists who were selected from among the randomly sampled medical facilities meeting each of the following institutional criteria: (1) facilities with ≥50 ACHD outpatients; (2) facilities with ACHD-specialized outpatient clinic; (3) facilities that are members of the Japanese Association of Chirdren's Hospitals and Related Facilities. The interview time was 27-91 minutes (mean, 70.0). The age of the subjects ranged from 36 to 62 years (mean, 46.7), and they had 0.5-34 years (mean, 16.2) of experience in treating congenital heart disease. From an analysis of interview details, the following four themes were extracted (in descending order of the number of comments): "(1) Who should treat ACHD" (comments by 29 subjects), "(2) Centralization of medical care" (comments by 29 subjects), "(3) What is the role of children's hospitals in ACHD?" (comments by 24 subjects), and "(4) Psychosocial problems" (comments by 24 subjects).

CONCLUSIONS

Regional ACHD centers need to be established to promote centralization of patients, physicians, and educational function. This will provide higher quality medical service to more patients in the near future.

Structure and process measures of quality of care in adult congenital heart disease patients: a pan-Canadian study

BACKGROUND

There are more adults than children with congenital heart disease. Of over 96,000 ACHD patients in Canada, approximately 50% require ongoing expert care. In spite of published recommendations, data on the quality of care for ACHD patients are lacking.

METHODS

Survey methodology targeted all Canadian Adult Congenital Heart (CACH) network affiliated ACHD centers. Clinics were asked to prospectively collect outpatient and procedural volumes for 2007. In 2008, centers were surveyed regarding infrastructure, staffing, patient volumes and waiting times.

RESULTS

All 15 CACH network registered centers responded. The total number of patients followed in ACHD clinics was 21,879 (median per clinic=1132 (IQR: 585, 1816)). Of the total 80 adult and pediatric cardiologists affiliated to an ACHD clinic, only 27% had received formal ACHD training. Waiting times for non-urgent consultations were 4 ± 2 months, and 4 ± 3 months for percutaneous and surgical procedures. These were beyond Canadian recommended targets at 11 sites (73%) for non-urgent consultations, at 8 sites (53%) for percutaneous interventions and 13 sites (87%) for surgery.

CONCLUSIONS

Of a minimum number of 96,000 ACHD patients in Canada, only 21,879 were being regularly followed in 2007. At most sites waiting times for ACHD services were beyond Canadian recommended targets. In spite of universal health care access, published guidelines for ACHD patient structure and process measures of health care quality are not being met.

Approaches to transition in other chronic illnesses and conditions

This article provides information about the efforts to develop health care transition programs in four groups of patients: those with cystic fibrosis, spina bifida, and congenital heart disease, and childhood cancer survivors. Against the backdrop of information on prevalence, data on long-term outcomes indicate the need for program development to improve these outcomes. The Life Course Model for spina bifida described throughout this issue of Pediatric Clinics of North America provides a model that anticipates and monitors progress toward adult outcomes that are desired for all youth with chronic conditions.

Successful initiation and maintenance of hemodialysis in an adult patient with complete transposition of the great arteries

Cyanotic congenital heart disease (CCHD) is a life-threatening cardiac defect that requires palliative or corrective surgery in early life. Major advances in medical and surgical management have resulted in the survival of CCHD patients to adulthood with or without corrective surgery, though some are at risk of development of end-stage renal disease (ESRD) due to cyanotic nephropathy (CN). There is little or no information on the initiation and maintenance of hemodialysis (HD) in such patients. We present here a case of a 44-year-old man with complete transposition of the great arteries and CN-related ESRD. He had only received a bi-directional Glenn's operation and still suffered persistent severe hypoxemia and impaired cardiac function. ESRD was successfully treated with HD over more than 4 years. The case emphasizes the need for special attention in the selection and initiation of renal replacement therapy.

Canadian Cardiovascular Society 2009 Consensus Conference on the management of adults with congenital heart disease: introduction

With advances in pediatric cardiology and cardiac surgery, the population of adults with congenital heart disease (CHD) has increased. In the current era, there are more adults with CHD than children. This population has many unique issues and needs. Since the 2001 Canadian Cardiovascular Society consensus conference report on the management of adults with CHD, there have been significant advances in the field of adult CHD. Therefore, new clinical guidelines have been written by Canadian adult CHD physicians in collaboration with an international panel of experts in the field. The present introductory section is a summary of the epidemiology and scope of adult CHD in Canada, the structure of the Canadian health care system and adult congenital cardiac health services in Canada. The recommendations for antibiotic prophylaxis and genetic evaluation in this population are included. The complete document consists of four manuscripts, which are published online in the present issue of The Canadian Journal of Cardiology, including sections on genetics, outcomes, diagnostic workups, surgical and interventional options, treatment of arrhythmias, assessment of pregnancy and contraception risks, and follow-up recommendations. The complete document and references can also be found at www.ccs.ca or www.cachnet.org.

Recommendations for cardiovascular magnetic resonance in adults with congenital heart disease from the respective working groups of the European Society of Cardiology

This paper aims to provide information and explanations regarding the clinically relevant options, strengths, and limitations of cardiovascular magnetic resonance (CMR) in relation to adults with congenital heart disease (CHD). Cardiovascular magnetic resonance can provide assessments of anatomical connections, biventricular function, myocardial viability, measurements of flow, angiography, and more, without ionizing radiation. It should be regarded as a necessary facility in a centre specializing in the care of adults with CHD. Also, those using CMR to investigate acquired heart disease should be able to recognize and evaluate previously unsuspected CHD such as septal defects, anomalously connected pulmonary veins, or double-chambered right ventricle. To realize its full potential and to avoid pitfalls, however, CMR of CHD requires training and experience. Appropriate pathophysiological understanding is needed to evaluate cardiovascular function after surgery for tetralogy of Fallot, transposition of the great arteries, and after Fontan operations. For these and other complex CHD, CMR should be undertaken by specialists committed to long-term collaboration with the clinicians and surgeons managing the patients. We provide a table of CMR acquisition protocols in relation to CHD categories as a guide towards appropriate use of this uniquely versatile imaging modality.

[Congenital heart disease. Transition from adolescence to adulthood]

There is a increasing clinical and scientific interest in adults with congenital heart disease. Germany is among, if not the first country worldwide, with a structured care of adults with congenital heart disease. Due to the advances in cardiology and in heart surgery, the primarily high mortality rate of relevant congenital heart disease has declined from 80% to less than 20% during the recent decades. Currently, in Europe the estimated number of adults with congenital heart disease is between 1.2 and 2.7 Mio., and the number in Germany exceeds 180,000. Almost all congenital heart defects, either native or interventionally or surgically treated, need regular control, since even after successful primary treatment significant residua or sequels have to be expected. Optimal care of these patients begins in the childhood and must be continued down to the high adulthood. The complexity of congenital heart defects makes a multidisciplinary approach necessary. A specialized, interdisciplinary cooperation between cardiologists, pediatric cardiologists, cardiac surgeons and other specialists is mandatory.

Planning the specialized care of adult congenital heart disease patients: from numbers to guidelines; an epidemiologic approach

Guidelines published in 2001 recommended 1 regional adult congenital heart disease (ACHD) center per 3 to 10 million population. Our objective was to determine if published guidelines on the numbers of regional ACHD centers are sufficient to meet the needs of adults with congenital heart disease in the general population. Population data were examined to evaluate the recommendations for the number of regional centers. We extrapolated a population prevalence of 4.09 per 1,000 adults corresponding to 847,896 and 87,375 patients with ACHD in the United States and Canada, respectively. We reviewed the information currently available on the numbers of ACHD facilities of any kind indexed to continental populations. We examined the distribution of disease and health services in pediatric and adult populations and examined the evidence for pressure points during the transition process. Published data on 6 of the largest regional ACHD centers were used to model regional center care. We reviewed determinants and recommendations for follow-up in regional centers. We explore 3 scenarios of referral patterns to regional centers, examining their impact of the number of centers required per country population. In conclusion, we demonstrate that 1 regional ACHD center for a population of 2.0 million adults appears to be closer to what is required for improving access to specialized care for patients with ACHD in the United States and Canada.

National Practice Patterns for Management of Adult Congenital Heart Disease

Background— Surgery for grown-up (age ≥18 years) patients with congenital heart disease (GUCH) is frequently performed by surgeons without specialization in pediatric heart surgery. We sought to define national practice patterns and to determine whether outcomes for GUCH patients are improved if they are treated by specialized pediatric heart surgeons (PHSs) compared with non-PHSs.

Methods and Results— We identified index cardiac procedures in patients with 12 congenital heart disease diagnostic groups using the Nationwide Inpatient Sample 1988 to 2003. PHSs were defined as surgeons whose annual practice volumes were made of >75% annual pediatric heart cases. GUCH operations were defined as operations within these 12 diagnoses occurring in patients ≥18 years of age. We identified 30 250 operations, yielding a national estimate of 152 277±7875 operations. Of these, 111 816±7456 (73%) were pediatric operations, and 40 461±1365 (27%) were GUCH operations. PHSs performed 68% of pediatric operations in all diagnostic groups, whereas non-PHSs performed 95% of GUCH operations within the same diagnostic groups ( P <0.0001). In-hospital death rates for GUCH patients operated on by PHSs were lower than death rates for GUCH patients operated on by non-PHSs (1.87% [95% CI, 0.62 to 3.13] versus 4.84% [95% CI, 4.30 to 5.38%]; P <0.0001). Survival advantage increased with increasing surgeon annual pediatric volume ( P =0.0031).

Conclusions— Pediatric patients within specific diagnostic groups are more likely to undergo operation by PHSs, whereas GUCH patients within the same diagnostic groups are more likely to undergo operation by non-PHSs. In-hospital death rates are lower for GUCH patients operated on by PHSs. GUCH patients should be encouraged to obtain surgical operation by PHS.

Coarctation of the descending aorta, patent ductus arteriosus, deficiency of right superior vena cava, and persistent left superior vena cava in a five-month infant demonstrated by multislice computed tomography

A 5-month-old female presented in our hospital with cyanosis, peripheral psychroesthesia, and significantly lower blood pressure of lower limbs compared with the upper limbs; suggesting aortic coarctation. The presence of patent ductus arteriosus (PDA) and persistent left superior vena cava (PLSVC) was suspected by echocardiogram. Before surgery, we performed multislice computed tomography to determine the spatial relationship between the site of aortic coarctation, PDA, and PLSVC. Although contrast material was injected from the right cubital vein, PLSVC was exclusively enhanced; therefore, deficiency of right superior vena cava was diagnosed. Coarctation of the DAo was observed in the right posterior direction of PLSVC and PDA was observed just distal to the coarctation site of the DAo and located at the right posterior direction of PLSVC. Therefore, the spatial relationship of PLSVC, coarctation of DAo and PDA could be evaluated and a direct anastomosis of the DAo and ligation of PDA were performed.

Predictive factors for long-term prognosis in adults with cyanotic congenital heart disease — Japanese multi-center study

OBJECTIVE

Adults with cyanotic congenital heart disease (CCHD) are associated with a significant incidence of morbid events and premature deaths that may be predicted during childhood. We aimed to identify predictive factors related to long-term prognosis through a Japanese multi-center cross-sectional study.

METHODS

Data were collected from 253 adults with CCHD (126 men; age 28 (18 to 56) years) from 15 participating centers between 1998 and 2003. Laboratory data such as cardiothoracic ratio (CTR), percutaneous oxygen saturation (SpO2), hematocrit levels (Ht) and platelet counts (Pl-c) at the age of 15 years were collected for predictive factor analysis for death and cardiovascular and systematic events. Predictive factors were determined by multivariate Cox regression analysis.

RESULTS

After a mean follow-up of 21 (0-42) years, 23 patients died with a median age of 29 (18-54) years (heart failure in 8, sudden in 6 and systematic complications in 9). Survival since 18 years of age was 91% and 84% at 10 and 20 years, respectively. Significant predictive factor for death was Pl-c<130x10(9)/l and for renal failure (n=7) was Ht>65%. 162 patients were hospitalized and predictors for hospitalization due to heart failure (n=45) were common atrioventricular canal CTR>60% and Pl-c<100x10(9)/l and that due to arrhythmias (n=44) were systematic right ventricle and CTR>60%.

CONCLUSIONS

This multi-center study provides an objective basis of assessing the long-term prognosis in patients with CCHD. These data are useful in making decisions regarding medical management and in favorably altering the non-operative course of the disease.

Health care resource utilization in adults with congenital heart disease

The number of adults with congenital heart disease (CHD) is increasing. However, rates of health care resource utilization in this population are unknown. The objectives of this study were to describe the use of general health care resources in adults with CHD and to examine the impact of CHD severity on resource utilization. The study consisted of adults alive in 1996 who had > or = 1 diagnosis of a CHD lesion conforming to the International Classification of Disease, Ninth Revision, in the physician's claims database of the province of Quebec from 1983 to 2000. From 1996 to 2000, rates of health care utilization were measured. The impact of the severity of CHD on the use of health care resources was determined using multivariate models to adjust for age, gender, Charlson co-morbidity score, and duration of follow-up. The study population consisted of 22,096 adults with CHD (42% men). From 1996 to 2000, 87% received outpatient care from specialists, 68% visited emergency rooms, 51% were hospitalized, and 16% were admitted to critical care units. Patients with severe CHD had higher adjusted rates of outpatient cardiologist care (rate ratio [RR] 2.24, 95% confidence interval [CI] 2.06 to 2.45), emergency department utilization (RR 1.09, 95% CI 1.03 to 1.17), hospitalization (RR 1.30, 95% CI 1.19 to 1.43), and days in critical care (RR 2.12, 95% CI 1.80 to 2.50) than patients with other congenital cardiac lesions. Hospitalization rates were higher than in the general Quebec adult population (RR 2.08, 95% CI 2.00 to 2.17). In conclusion, adults with CHD have high rates of health care resource utilization, particularly those with severe lesions. Appropriate resource allocation is required to serve this growing population.

Changes in Hospitalization Patterns Among Patients With Congenital Heart Disease During the Transition From Adolescence to Adulthood

OBJECTIVES

This study was designed to evaluate hospitalization patterns of congenital heart disease (CHD) patients surrounding the transition from adolescence to adulthood.

BACKGROUND

Few population data exist on hospitalizations among adolescent and adult CHD patients.

METHODS

Patients ages 12 to 44 years with CHD were selected from the 2000 to 2003 California hospital discharge database. Patient demographics, hospitalization patterns, emergency department (ED) admissions, CHD complexity, and insurance patterns were described. Data were analyzed in 3-year age increments and compared between patients over and under age 21. Predictors of admission via the ED were determined using multivariate regression analysis.

RESULTS

There were 9,017 hospitalizations at 368 hospitals. For patients ages 12 to 20 years, 12 hospitals accounted for 70% of hospitalizations; for patients ages 21 to 44 years, 25 hospitals accounted for only 44.8% of cases. Regarding insurance, 53% of admissions were private, 44% public, and <4% were self-pay. Sixty-five percent of patients had complex CHD and 19% had a cardiac procedure during hospitalization. The proportion of patients admitted via the ED nearly doubled surrounding the transition to adulthood. The positive predictors of admission via the ED included public insurance, self-pay, and age >17 years, whereas having a procedure and being female decreased the likelihood.

CONCLUSIONS

Congenital heart disease hospitalizations occur at a wide variety of hospitals and disperse as patients enter adulthood. Those without private insurance and >17 years old are at higher risk of being admitted via the ED. These findings require further investigation to examine access to care and possible disparities, as they are important for future healthcare planning.

Risk of Surgery for Congenital Heart Disease in the Adult: A Multicentered European Study

BACKGROUND

Surgery for congenital heart disease (CHD) has changed considerably during the last three decades. The results of primary repair have steadily improved, to allow treating almost all patients within the pediatric age; nonetheless an increasing population of adult patients requires surgical treatment. The objective of this study is to present the early surgical results of patients who require surgery for CHD in the adult population within a multicentered European study population.

METHODS

Data relative to the hospital course of 2,012 adult patients (age > or = 18 years) who required surgical treatment for CHD from January 1, 1997 through December 31, 2004 were reviewed. Nineteen cardiothoracic centers from 13 European countries contributed to the data collection.

RESULTS

Mean age at surgery was 34.4 +/- 14.53 years. Most of the operations were corrective procedures (1,509 patients, 75%), followed by reoperations (464 patients, 23.1%) and palliative procedures (39 patients, 1.9%). Six hundred forty-nine patients (32.2%) required surgical closure of an isolated ostium secundum atrial septal defect. Overall hospital mortality was 2%. Preoperative cyanosis, arrhythmias, and NYHA class III-IV, proved significant risk factors for hospital mortality. Follow-up data were available in 1,342 of 1,972 patients (68%) who were discharged home. Late deaths occurred in 6 patients (0.5%). Overall survival probability was 97% at 60 months, which is higher for corrective procedures (98.2%) if compared with reoperations (94.1%) and palliations (86.1%).

CONCLUSIONS

Surgical treatment of CHD in adult patients, in specialized cardiac units, proved quite safe, beneficial, and low-risk.

The Anesthesiologist's Role in Adults with Congenital Heart Disease

Anesthesia for adults with congenital heart disease has many challenging physiologic considerations. Collaborative relationships of a multidisciplinary team including cardiology, cardiac surgery, anesthesiology, and intensive care are essential to ensure positive outcomes in this population for noncardiac and cardiac surgery.

Delivery of care for adult patients with congenital heart disease in Europe: results from the Euro Heart Survey

AIMS

The increasing number of adults with congenital heart disease (CHD) has prompted the development of recommendations for the management of these patients and for the organization of their healthcare. The aim of this report is to describe the delivery of care in Europe for adults with congenital cardiac anomalies.

METHODS AND RESULTS

As part of the Euro Heart Survey on Adult Congenital Heart Disease, we obtained data from 71 voluntarily participating centres that detailed their care practices for these patients. Forty-eight of these centres were specialist centres and 23 were non-specialist centres. We found that only 19% of the specialist centres complied with defined standards for optimal care structure. The criteria that appeared to be most difficult for all centres to achieve were performing 50 congenital heart operations or more per year and involving nurse specialists in the care of these patients.

CONCLUSION

This survey indicated that the provision of care in Europe for adults with congenital heart defects is suboptimal. To fully realize the benefits of cardiac surgery performed in infants and children, continuous effort must be applied by healthcare professionals in order to implement the recommendations on the organization of care for these patients.