Task force 1: the changing profile of congenital heart disease in adult life

What's Happening in Paediatric Cardiology?

Recent decades have witnessed dramatic advances in the care of adults with heart disease. However, equally significant advances have occurred in the care of children. In this review we describe some of the advances, which have been made in the care of children with heart disease, focusing not only on technological advances, but also on developments in team-based care, which together have resulted in significant improvements in outcomes.

Academic performance and behavioral difficulties after neonatal and infant heart surgery

Although advances in medical and surgical arenas have allowed the ability to "mend" children born with congenital heart disease, the increasing number of survivors has created a growing cohort of children with potential academic difficulties. This article reviews the current understanding of the midterm neurologic outcomes of children who underwent neonatal and infant cardiac surgery. Lesions including transposition of great arteries, tetralogy of Fallot, hypoplastic left heart syndrome, total anomalous pulmonary venous connection, and single ventricle lesions requiring Fontan palliation or cardiac transplantation are discussed.

Adolescents in transition of adult care: why the concern?

This article has described issues associated with transition planning for youth with CHD. A number of approaches have been described to address the needs of this growing number of youth with CHD. Transition to adulthood has been and will continue to be a significant clinical concern as the adult survival rate increases. Health care professionals who are involved in transition planning will be focused on the health-related concerns of the transfer to an ACHD, insurability, and long-term CHD management, as well as issues related to employment, education, social relationships, and independent living. Successful transitioning is dependent on long-term planning,. youth-centered approaches, service coordination, and referral to adult agencies. As youth, families, adult survivors, and experts have discovered, long-term survival means more than the physical aspects of CHD.

Congenital heart disease never goes away, even when it has been 'treated': the adult with congenital heart disease

PURPOSE OF REVIEW

As the specialties of pediatrics and pediatric cardiology continue to forge ahead with better diagnoses, medical care, and surgical results, an expanding population of patients with congenital heart disease (CHD) outgrows the pediatric age group, yet does not quite graduate to routine adult cardiology or general medicine. The adult with congenital heart disease (ACHD) faces medical, surgical, and psychosocial issues that are unique to this population and must be addressed as such. This review attempts to discuss and highlight some of the important advances and controversies brought up in the past year, in the care and management of these patients.

RECENT FINDINGS

The past five to 10 years have seen dynamic interest in understanding sequelae of corrected, uncorrected, or palliated congenital heart disease. The search for the ideal surgery, optimal prosthesis, and a smooth transition to adult care continues and is reflected in the vast amount of academic work and publications in this field. Of particular interest, conduit reoperations and single ventricle pathway modifications are still an art and a science in evolution.

SUMMARY

While all are agreed that there is a pressing need to focus on the delivery of care to the adult with congenital heart disease, this essentially requires a clearer understanding of late sequelae of CHD. The sheer heterogeneity of anatomy, age, surgery, and institutional management protocols can make it difficult to develop clear guidelines. This review attempts to give an up-to-date perspective on some of the new findings related to the more common lesions and problems faced in this group.

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

BACKGROUND

Specialized tertiary care facilities developed in response to the increasing numbers of adults with congenital heart disease (CHD). Because this patient population comprises a relatively new area of specialized cardiovascular interest, the first facilities necessarily evolved without preexisting guidelines or interaction.

OBJECTIVES

To characterize the major features of the six original and largest tertiary adults CHD facilities.

METHODS

Written questionnaire sent to six participating facilities in North America and Europe. Information was analyzed centrally.

RESULTS

All but one facilities was established over 20 years ago, and each cares for over 1500 patients. Hospital admissions ranged from 100 to 660 patients/unit/year. Of the total number of registered patients, 52-81% had undergone one or more reparative surgeries. Reoperations constituted 25-80% of the 50-170 operations/unit/year. Overall mean surgical mortality was 1.9%/year. Inpatient and outpatient care was provided in adult (n = 4) or both adult and pediatric (n = 2) settings. All six facilities enjoyed close collaboration between adult and pediatric cardiologists, cardiac surgeons, nurse specialists and cardiac and non-cardiac consultants. Training and research were pivotal activities.

CONCLUSIONS

Provision of comprehensive care by multidisciplinary teams including adult and pediatric cardiologists, cardiac surgeons, specialized nurses and other cardiac and non-cardiac consultants was the unifying feature for all six tertiary care facilities reported here. There were minor differences among them based on available resources, local expertise and national health care policies. There appears to be a significant shortfall in tertiary care provision for the adult with CHD that requires further planning and resource allocation. These data may be useful for new and evolving adult CHD services.

Sequential combined spinal-epidural anesthesia for cesarean section in a woman with a double-outlet right ventricle

The number of women with complex cyanotic heart disease reaching childbearing age is continuously increasing. For anesthesiologists, management of this 'new' obstetric population is particularly challenging. We report the case of a parturient with a palliated double-outlet right ventricle, who underwent a cesarean section at 34 weeks with low-dose sequential combined spinal-epidural anesthesia with patient-controlled epidural postoperative analgesia. Anesthetic considerations and specific limitations of invasive monitoring are discussed, along with a review of recent literature on maternal and neonatal complications associated with pregnancies in women with cyanotic congenital heart disease.

Congenital heart disease in the adult: 2004

The number of newborn infants with congenital heart disease is relatively stable.However, because of marked advances in correction and palliation of these conditions,the great majority will survive into adult life, significantly increasing the number of such patients in our population. Most patients with congenital heart disease, treated or not,will require routine, continued medical observation and, therefore, many radiologists will become involved in their care. Not uncommonly, pertinent clinical information is not provided to the radiologist, particularly when the patient presents to an Emergency Room because of intercurrent disease. In order to interpret the chest film or CT examination and provide a pertinent report, the radiologist must be conversant with the patterns of the more common congenital cardiac anomalies as well as their post-operative appearances and potential complications.

Health status, functional abilities, and quality of life after the Mustard or Senning operation

BACKGROUND

Life expectancy of patients who underwent atrial switch operation for the transposition of the great arteries is relatively good. However, many patients are faced with residua and sequelae, which may hamper their functioning and quality of life. This multicenter study assessed the perceived health status, functional abilities, and quality of life in long-term survivors of the Mustard or Senning operation.

METHODS

A group of 89 patients (58% male) were selected from four tertiary care centers, consisting of 37 Mustard and 52 Senning operation patients. Perceived health status was measured using a linear analog scale. The educational level, employment status, New York Health Association classification, ability index, and Baecke questionnaire were used to evaluate functional abilities. Quality of life was assessed with a linear analog scale, the Satisfaction with Life Scale, and the Congenital Heart Disease-TNO/AZL Adult Quality of Life.

RESULTS

Patients reported good to very good perceived health, functional capacities, and quality of life. The responses of patients with complex transposition were equivalent to those of patients with simple transposition. The most dominant concerns reported by survivors of the Mustard and Senning operations were experiences about physical limitations and worries about a current or future job or income.

CONCLUSIONS

Long-term survivors after atrial inflow correction demonstrated favorable perceived health, functional status, and quality of life; these conditions were, to a large extent, comparable with the status of the general population. These outcome variables were not negatively affected by the complexity of the transposition.

Prevalence of congenital heart disease

BACKGROUND

Today most patients with congenital heart disease survive childhood to be cared for by adult cardiologists. The number of physicians that should be trained to manage these lesions is unknown because we do not know the number of patients.

METHODS

To answer this question, the expected numbers of infants with each major type of congenital heart defect born in each 5-year period since 1940 were estimated from birth rates and incidence. The numbers expected to survive with or without treatment were estimated from data on natural history and the results of treatment. Finally, lesions were categorized as simple, moderate, or complex, based on the amount of expertise in management needed for optimal patient care.

RESULTS

From 1940 to 2002, about 1 million patients with simple lesions, and half that number each with moderate and complex lesions, were born in the United States. If all were treated, there would be 750,000 survivors with simple lesions, 400,000 with moderate lesions, and 180,000 with complex lesions; in addition, there would be 3,000,000 subjects alive with bicuspid aortic valves. Without treatment, the survival in each group would be 400,000, 220,000, and 30,000, respectively. The actual numbers surviving will be between these 2 sets of estimates.

CONCLUSIONS

Survival of patients with congenital heart disease, treated or untreated, is expected to produce large numbers of adults with congenital disease, and it is likely that many more adult cardiologists will need to be trained to manage moderate and complex congenital lesions.

Prevalence and correlates of successful transfer from pediatric to adult health care among a cohort of young adults with complex congenital heart defects

OBJECTIVES

More than 85% of children born today with chronic medical conditions will live to adulthood, and many should transfer from pediatric to adult health care. The numbers of adults with congenital heart defects (CHDs) are increasing rapidly. Current guidelines recommend that just over half of adult CHD patients should be seen every 12 to 24 months by a cardiologist with specific CHD expertise at a regional CHD center, because they are at risk for serious complications (eg, reoperation and/or arrhythmias) and premature mortality. The present study aimed to determine the percent of young adults with CHDs who successfully transferred from pediatric to adult care and examine correlates of successful transfer.

DESIGN

Cross-sectional study with prevalence data from an entire cohort.

SETTING AND PATIENTS

All patients (n = 360) aged 19 to 21 years with complex CHDs who, according to current practice guidelines, should be seen annually at a specialized adult CHD center were identified from the database of the cardiology program at the Hospital for Sick Children in Toronto, Canada, a pediatric tertiary care center. Of these patients, 234 completed measures about health beliefs, health behaviors, and medical care since age 18 years.

MAIN OUTCOME MEASURE

All 15 specialized adult CHD centers in Canada formed the Canadian Adult Congenital Heart (CACH) Network. Attendance for at least 1 follow-up appointment at a CACH center before the age of 22 years was ascertained for all eligible patients. Attendance at a CACH center provides a clear criterion for successful transfer.

RESULTS

In the total cohort, 47% (95% confidence interval [CI]: 42-52) had transferred successfully to adult care. There was no difference in rates of successful transfer between patients consenting to complete questionnaires (48%) and those who declined (47%). More than one quarter (27%) of the patients reported having had no cardiac appointments since 18 years. In multivariate analyses of the entire cohort, successful transfer was significantly associated with more pediatric cardiovascular surgeries (odds ratio [OR]: 2.47; 95% CI: 1.40-4.37), older age at last visit to the Hospital for Sick Children (OR: 1.29; 95% CI: 1.10-1.51), and documented recommendations in the medical chart for follow-up at a CACH center. In multivariate analyses of the patients completing questionnaires, successful transfer was significantly related to documented recommendations and patient beliefs that adult CHD care should be at a CACH center (OR: 3.64; 95% CI: 1.34-9.90). Comorbid conditions (OR: 3.13; 95% CI: 1.13-8.67), not using substances (eg, binge drinking; OR: 0.18; 95% CI: 0.07-0.50), using dental antibiotic prophylaxis (OR: 4.23; 95% CI: 1.48-12.06), and attending cardiac appointments without parents or siblings (OR: 6.59; 95% CI: 1.61-27.00) also correlated with successful transfer.

CONCLUSIONS

This is the first study to document the percent of young adults with a chronic illness who successfully transfer to adult care in a timely manner. Patients were from an entire birth cohort from the largest pediatric cardiac center in Canada, and outcome data were obtained on all eligible patients. Similar data should be obtained for other chronic illnesses. There is need for considerable improvement in the numbers of young adults with CHDs who successfully transfer to adult care. At-risk adolescents with CHDs should begin the transition process before their teens, should be educated in the importance of antibiotic prophylaxis, should be contacted if a follow-up appointment is missed, and should be directed to a specific CHD cardiologist or program, with the planned timing being stated explicitly. Adult care needs to be discussed in the pediatric setting, and patients must acquire appropriate beliefs about adult care well before transfer. Developmentally appropriate, staged discussions involving the patient, with and without parents, throughout adolescence may help patients acquire these beliefs and an understanding of the need for ongoing care. Improved continuity of pediatric care and provision of clear details for adult follow-up might be sufficient to cause substantive improvements in successful transfer. An understanding of why patients drop out of pediatric care may be needed to improve the continuity of care throughout adolescence. Almost one quarter of the patients believed adult care should be somewhere other than at a CACH center despite opposite recommendations. For these patients, a single discussion of adult care during the final pediatric visit may be too little, too late. In addition to earlier discussions, multiple mechanisms such as referral letters and transition clinics are needed. Similarly, patients engaging in multiple risky or poor health behaviors such as substance use may need more intensive programs to make substantial changes in these behaviors, which hopefully would lead to successful transfer. Overall, these data support the view that transition to adult care (a planned process of discussing and preparing for transfer to an adult health center) is important and should begin well before patients are transferred. The future health of adults with chronic conditions may depend on our ability to make these changes.

Emergency hospital admissions and three-year survival of adults with and without cardiovascular surgery for congenital cardiac disease

OBJECTIVE

This study determined the quantity and nature of emergencies leading to unscheduled hospital admissions of adults with congenital cardiac disease and their mid-term survival.

RESULTS

During 1 year, 429 adults with congenital cardiac diseases were admitted 571 times, and 124 admissions (22%) of 95 patients (22%) were emergency admissions. Fifteen of the 95 patients were seen for the first time in 1 of the participating centers. The underlying anomalies were Fallot's tetralogy and pulmonary atresia (n = 26/7), univentricular heart after Fontan procedure (n = 25), atrial septal defect (n = 18), Eisenmenger syndrome (n = 12), complete transposition (n = 11), and others (n = 25). Indications for admission were cardiovascular complications (n = 103; 83%) (arrhythmia, cardiac failure, syncope, pacemaker problems, pericardial tamponade, and sudden death), infections (n = 8, 6%) (endocarditis, pacemaker infection, pneumonia, and cerebral abscess), acute chest pain (n = 7; 6%), and acute abdominal pain (n = 4; 3%). All patients required immediate emergency care, and 16 patients (17%) required urgent cardiovascular or abdominal surgery. Six patients died during the hospital stay. During a follow-up of 2.9 years (SD 0.8), 16 (18%) of the discharged patients died, and 2 additional patients underwent heart or heart-lung transplantation.

CONCLUSION

Adults with congenital cardiac disease often experience serious emergency situations with a high in-hospital and mid-term post-hospital mortality. Care given by physicians with special expertise is important in this specific group of patients.

Transitioning adolescents with congenital heart disease into adult health care

The effort and commitment dedicated to the treatment of children with congenital heart disease over the past 50 years has been astounding. Therefore, it is imperative to ensure these young patients who have survived the varying challenges of their conditions a smooth transition into a new world of adult health care. The key to the long-term management of an increasing number of children surviving congenital heart disease is the effective coordination of care from pediatric to adult health care. Strategies for facilitating the transition of the adolescent with congenital heart disease into adult health care practices are presented in this paper.

Anaesthesia in parturients with heart disease: a five year review in an Australian tertiary hospital

At the Royal Women's Hospital, Queensland, between 1993 and 1997 there were 56 vaginal and 22 caesarean deliveries involving 68 women with heart disease. Over half of those women required anaesthetic input, in particular, the women who had the most serious cardiac compromise. There were two maternal deaths, four unbooked and five booked admissions to intensive or coronary care unit.

Depression and anxiety in adults with congenital heart disease: a pilot study

OBJECTIVE

To examine the presence of depression and anxiety in adults with congenital heart disease and the association of medical severity with depression and anxiety.

DESIGN

Prospective, pilot study.

SETTING

An adult outpatient cardiology clinic in university-affiliated children's hospital in Northeast.

PATIENTS

Twenty-two adult patients with congenital heart disease followed in an adult cardiology clinic. Patients were selected who had no evidence of emotional or behavioral difficulties, (ie, no symptoms of depression or anxiety). Outcome Measures Standardized semi-structured psychiatric interview with structured checklist eliciting Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) diagnostic criteria for depressive and anxiety disorders, Brief Symptom Inventory (BSI), and the Cardiologist's Perception of Medical Severity scale.

RESULTS

Among patients who had been assumed to be "well adjusted," 36.4% were experiencing a diagnosable psychiatric disorder, with anxiety or depressive symptoms being prominent. There were 6 patients (27.3%) who had BSI scores above 63 indicating pathological emotional functioning. There was significant convergent validity between the clinical diagnoses of depression and anxiety using both diagnostic interviews to identify DSM-IV diagnostic conditions and the BSI. There were significant associations between patient's medical severity scores and with the DSM-IV diagnosis of depression and the BSI global index score and depression subscale.

CONCLUSIONS

This pilot study raises important concerns about the emotional functioning of many adults facing congenital heart disease, particularly those with complex lesions. From a clinical perspective, this work suggests that health care professionals should be alert for emotional difficulties and the possible need for psychological intervention for adult survivors of congenital heart disease even among those that are seemingly emotionally well adjusted.

The incidence of congenital heart disease

This study was designed to determine the reasons for the variability of the incidence of congenital heart disease (CHD), estimate its true value and provide data about the incidence of specific major forms of CHD. The incidence of CHD in different studies varies from about 4/1,000 to 50/1,000 live births. The relative frequency of different major forms of CHD also differs greatly from study to study. In addition, another 20/1,000 live births have bicuspid aortic valves, isolated anomalous lobar pulmonary veins or a silent patent ductus arteriosus. The incidences reported in 62 studies published after 1955 were examined. Attention was paid to the ways in which the studies were conducted, with special reference to the increased use of echocardiography in the neonatal nursery. The total incidence of CHD was related to the relative frequency of ventricular septal defects (VSDs), the most common type of CHD. The incidences of individual major forms of CHD were determined from 44 studies. The incidence of CHD depends primarily on the number of small VSDs included in the series, and this number in turn depends upon how early the diagnosis is made. If major forms of CHD are stratified into trivial, moderate and severe categories, the variation in incidence depends mainly on the number of trivial lesions included. The incidence of moderate and severe forms of CHD is about 6/1,000 live births (19/1,000 live births if the potentially serious bicuspid aortic valve is included), and of all forms increases to 75/1,000 live births if tiny muscular VSDs present at birth and other trivial lesions are included. Given the causes of variation, there is no evidence for differences in incidence in different countries or times.