Long-term results in isolated ventricular septal defect surgically repaired after age 10. Comparison with the natural course in similarly-aged patients

Long-Term Outcomes of Surgical Repair for Ventricular Septal Defect in Adults

Data of the outcomes of ventricular septal defect (VSD) closure in adults are limited to establish recommendations. Therefore, we reviewed our experience with surgical VSD closure in adult patients. We retrospectively reviewed 152 patients who underwent surgical VSD closure between January 1996 and April 2020. The median age of the patients was 30.5 [interquartile range (IQR) 23.1-42.7] years. The median follow-up duration was 10.9 (IQR 4.8-16.1) years. VSDs were classified according to the Society of Thoracic Surgeons classification as type 2 (n = 66, 43.4%), type 1 (n = 59, 38.8%), and type 4 (n = 27, 17.8%). Aortic cusp prolapse (n = 86, 56.6%) and aortic valve regurgitation (AR, n = 75, 49.3%) were the most common indications for surgical closure. Four patients underwent late reoperation (2.6%) due to AR, infective endocarditis and residual VSD. In the log-rank test, preoperative trivial or more degree of AR (P = 0.004) and coronary cusp deformity (P = 0.031) was associated with late moderate or greater degree of AR. Preoperative moderate or greater AR was associated with reoperation (P = 0.047). Only concomitant aortic valve (AV) repair at the time of VSD closure was a significant risk factor for late significant AR progression in the multivariable analysis. VSD closure in adults can be performed with low mortality and morbidity rates. AR can progress after VSD closure because the aortic cusp may have irreversible damage from long-standing shunt flow exposure. We conclude that VSD with AV deformity or AR in adults should be treated aggressively before disease progression with irreversible damage occurs.

[Ventricular septal defects in adults: 15 years of surgical experience in a single Colombian cardiovascular center]

OBJECTIVE

To review the surgical experience with ventricular septal defects in adults in Colombia.

METHOD

Descriptive, retrospective study of surgically repaired patients between 1995 and 2010. Clinical, echocardiographic, hemodynamic, and surgical findings were related to hospital and outpatient outcomes.

RESULTS

Fifty-two patients were analyzed (mean age 29.3 ± 9.9 years, 54% women). Ventricular septal defects were classified, according to the Society of Thoracic Surgeons, as type 2 (membranous, 84.6%), type 1 (subarterial, 13.5%), and type 3 (inlet, 1.9%). Dyspnea, Qp/Qs ≥ 2, and pulmonary hypertension were the most common indications for surgery. No peri-operative deaths were found. Outpatient mean follow-up was 2.7 ± 3.6 years and was possible for 90% of the original cohort and late mortality was 5% (one case). Despite that residual ventricular septal defects (29%) were frequent, no patient required surgical re-intervention for this reason. Improvements in functional class and pulmonary artery systolic pressure were also observed.

CONCLUSIONS

Surgical closure of ventricular septal defects in adults is a safe procedure without early mortality and a low complications index. Residual ventricular septal defects underline the need for life-long follow-up.

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.

Reoperations in adults with congenital heart disease: analysis of early outcome

BACKGROUND

Grown-ups with congenital heart disease (GUCH) are an increasingly important group of patients, with many requiring reoperations because of late complications or residual defects, correction after palliation, further palliation or heart transplantation.

METHODS

In order to identify perioperative risk factors, we have retrospectively analysed perioperative mortality and morbidity of 66 consecutive GUCH patients needing reoperations between July 1987 and December 2000 with a mean age of 28+/-12 (14.2-63.5) years and preoperative ejection fraction of 57+/-21%. Primary cardiac defects were LVOT pathology (17 patients), coarctation (10), Tetralogy of Fallot (TOF) (9), VSD (9), transposition of the great arteries (TGA) (7), Marfan syndrome (6), ASD (5) and others (3).

RESULTS

Reoperations included various aortic valve procedures (28), aortic replacements (16), ASD/VSD closures (16), conduits (11), RVOT procedures (8), coarctation repair (5), cardiac transplantation (3) or others (8). Early mortality was 7.6%. Serious postoperative complications occurred in 24%. Presence of cyanosis, heart failure, VSD, TGA, pulmonary atresia, correction after palliative surgery and number of previous operations were preoperative risk factors and duration of operation, cardiopulmonary bypass and aortic cross-clamp, core temperature, low output syndrome, use of epinephrine, pneumonia and ARDS, renal failure, dialysis and stroke perioperative risk factors for fatal outcome.

CONCLUSIONS

Reoperations in GUCH patients are mostly due to outflow tract lesions, coarctations and TOF. Perioperative risks remain important especially with cyanosis, TGA, pulmonary atresia and poor ventricular function. Therefore, close follow-up, timely referral for re-intervention and adequate perioperative management are mandatory to reduce perioperative risks and improve results.

Long-term follow-up in isolated ventricular septal defect considered too small to warrant operation

An isolated ventricular septal defect (VSD) was diagnosed in 70 patients (39 men and 31 women, mean age 29 years, range 10-64 years). Surgery was judged unnecessary. The follow-up period was at least 10 years, or until death or 31 December 1988, comprising a mean duration of 21 (range 6-29) years. The mortality was 11/69 (one lost to follow-up), and was not significantly higher than in a matched 'normal' group. Six deaths were cardiac, four of which could probably be related to the VSD. The follow-up study revealed that: (1) 14 (22%) subjects had major, VSD-related complications, and cardiac surgery was indicated in eight patients; (2) six (10%) had minor complications. By the end of 1988, 24% of subjects had significant dyspnoea, 22% had chest pain and 19% used cardioactive drugs. Only 33% were receiving regular cardiac control in a hospital. Thus unoperated adults with a small VSD should be monitored closely, since this condition is far from benign.

Social function of adults with isolated ventricular septal defects. Possible negative effects of surgical repair?

Possible long-term deterioration of social function has been studied in adults over 30 years of age with congenital, isolated ventricular septal defects (VSD). This deterioration may possibly have been caused by brain damage connected with open heart surgery performed after age 10 years. Thirty-five patients with a mean age of 39 (range 31-61) years have been followed up for an average of 15 (3-21) years when restudied after surgical repair of VSD performed at a mean age of 23 (10-51) years (Group 1). Their social status was compared with 61 non-operated subjects with basically smaller defects, mean age 43 (31-73) years, who had been followed up for an average of 14 (3-21) years. Group 1 had a higher educational level, were less stressed at work, had a higher gross income (NS) and were less physically disabled (p less than 0.01). Both groups had a higher educational level than normal 40-year-old Norwegians. The percentages receiving disablement pension were 12% in group 1 and 13% in group 2. Despite a higher abortion rate (33% vs. 18%), group 1 females had a higher number of liveborn babies than those in group 2 (NS). Regular medical check-ups were attended by 45% and 60% in groups 1 and 2 respectively, and about half took antibiotics prophylactically. Unlike when initially investigated, group 1 had a better cardiac condition than group 2. Compared with the non-operated group, the operated patients had suffered no detrimental effects on their social function. We therefore advocate a liberal policy for surgical repair of VSD after age 10 years.