Unroofing Technique for Anomalous Origin of the Left Coronary Artery from the Right Sinus of Valsalva: Report of a Case

Anomalous origin of the left coronary artery (AOLCA) from the right sinus of Valsalva constitutes a rare congenital coronary artery anomaly. Patients with an anomalous left main coronary artery face a significantly higher risk of sudden cardiac death compared to those with an anomalous right coronary artery. The anomalous coronary artery traversing between the ascending aorta and the pulmonary artery markedly heightens the risk of myocardial ischemia, arrhythmia, and sudden death. Symptomatic patients often exhibit a longer intramural course of the coronary artery, which may necessitate earlier intervention or influence the choice of surgical repair method. Surgical intervention is advocated for patients with this anomaly, even in the absence of symptoms. For anomalous aortic origin of a coronary artery from the opposite sinus of Valsalva with an intramural course, coronary unroofing is the preferred revascularization procedure. This report presents a case of AOLCA originating from the right sinus of Valsalva, treated surgically using the unroofing technique for the aortic intramural segment of the anomalous coronary artery traversing between the great vessels. The unroofing technique is recommended for treating AOLCA with an extensive intramural course that does not involve the commissure.

A Case of Pediatric Heart Failure Caused by Anomalous Origin of the Left Coronary Artery from the Pulmonary Artery: Case Report and Literature Review

A female patient aged 3 months and 10 days was admitted to the cardiology department because of symptoms of heart failure.According to the echocardiography results,the patient received a diagnosis of primary endocardial fi broelastosis and was treated withγ-globulin,prednisone,digoxin,and diuretics.Coronary computed tomographic angiography and coronary angiography were performed as there was no improvement after 2 months of treatment.Finally,the patient received a diagnosis of anomalous origin of the left coronary artery from the pulmonary artery(ALCAPA).ALCAPA is a rare congenital heart defect that can cause severe heart failure during infancy,and is easily misdiagnosed clinically.In this report,we show the process of misdiagnosis of the case and consult the relevant literature,hoping to improve the understanding and early diagnosis of ALCAPA.

Surgical Outcomes of Anomalous Origin of the Left Coronary Artery from the Pulmonary Artery in Children： An Echocardiography Follow？up

Background：Anomalous origin of the left coronary artery from the pulmonary artery （ALCAPA） is a rare but potentially life-threatening congenital heart defect. A retrospective analysis was carried out to elucidate the surgical outcomes of ALCAPA in infants and children using follow-up echocardiography. Methods： From September 2008 to March 2017, 26 children diagnosed with ALCAPA underwent left coronary re-implantation. All surviving patients received echocardiography during follow-up. Results： The mortality rate after the operation was 11.5%. Before repair, twenty patients （76.9%） presented with left ventricular （LV） dysfunction. The mean Z-score of the preoperative LV end-diastolic diameter was 4.42 ± 2.09. Mitral regurgitation （MR） was present in all patients. Two patients （7.7%）, both with mitral valve prolapse, underwent mitral valve repair at the time of ALCAPA repair. Two children required postoperative extracorporeal membrane oxygenation. LV function normalized at a median time of 5.3 months （range：0.5–36.0 months）. The Z-score of the LV end-diastolic diameter decreased simultaneously. The degree of MR gradually decreased in all surviving patients.All patients had patency of the proximal left coronary artery confirmed by echocardiography at the most recent follow-up. Six patients （26.1%） showed supravalvar pulmonary stenosis and seven patients （30.4%） showed right pulmonary stenosis during follow-up. Conclusions： Coronary re-implantation was effective for rebuilding a dual coronary system in patients with ALCAPA and resulted in progressive improved LV function and reduced functional MR. Echocardiography was valuable for evaluating the outcomes. LV function, the degree of MR, and possible complications could be detected with follow-up echocardiography.

Nursing cooperation in corrective surgery of anomalous origin of the left coronary artery from the pulmonary artery in adult

Background Anomalous Origin of Coronary Artery （AOCA）, a congenital heart disease with low incidence, can cause sudden cardiac death in the young. It＇ s surgical treatment is scarcely performed in clinical practice, thus the special nursing needed during the surgery for this rare disease is largely unrecognized. Method There were 7 adult patients who had suffered from AOCA received corrective operation in our hospital in the last 10 years. Preoperative preparation, nursing cooperation and emergency procedure were analyzed and summarized. Result The AOCA corrective surgery was all successfully completed on these 7 patients. The nursing key points were drawn from these patients. Conclusion Key points of nursing cooperation in AOCA correction surgery include： understanding the condition, mastering pathological anatomy preoperative, making strict application of gradient temperature control ,observing the change of the disease, and carrying out all kinds of emergency preparation during surgery. Meanwhile, careful check in all cases and literature data, participate in preoperative discussion, and skilled techniques are also important to the success of surgery.

Early variation of left ventricular dimension and mitral regurgitation after correction for anomalous origin of the left coronary artery from the pulmonary artery

Background Anomalous origin of the left coronary artery cardiac lesion resulting in myocardial ischemia even infarction, from the pulmonary artery is a rare congenital morphological impairment and dysfunction of left ventricle, together with mitral regurgitation. Here we will introduce our experience in the surgical repair of this kind of congenital lesion and the retrospective analysis about the improvement of left ventricular dimension and mitral regurgitation in early postoperative term. Method From May 1998 to July 2012, 38 consecutive patients with anomalous coronary artery from the pulmonary artery underwent surgical correction （33 received left coronary artery re-implantation, 4 left coronary artery ligation or primary closure, 1 Takeuchi procedure, and 10 simultaneous mitral valve plasty）. Left ventricular dimension, mitral regurgitation, and ejection fraction, were measured by color Doppler echocardiography preoperatively, and 1 month after discharge. Results Hospital survival was 94.7% （2 in-hospital deaths）. Ten paptients with more than moderate mitral regurgitation received simultaneous mitral plasty, one of whom was converted to mechanical prosthetic valve replacement. Mitral valve annuloplasty was applied in 9 cases of coronary re-implantation correction, 3 of whom also received additional mitral leaflet cleft repair. Meanwhile 8 patients underwent other different concomitant operations. Echocardiographic results for the survivals 1 month after discharge showed that left ventricular end-diastolic, endsystolic dimension decreased from 40.05 ± 5.56 mm and 28.94 ± 6.21 mm to 33.07 ± 6.82 mr, （P 〈 0.01） and 23.04 ±5.87 mm （P 〈 0.01） respectively. The average mitral regurgitation grade was also reduced from 2.36 ± 1.08 to 1.64 ± 93 （P 〈 0.05） in the group. All survival patients improved clinically and NYHA functional class decreased significantly from 2.37 ± 1.08 to 2.10 ±0.54 （P 〈 0.05）. Conclusions The surgical repair of anomalous origin of the left coronary artery from the pulmonary artery is safe and effective, and can get satisfactory dimensional and functional improvement of the left ventricle in early term. Although controversial, concomitant mitral valve plasty can be helpful for critical patients with severe mitral regurgitation.

Postoperative management of patients with repair of anomalous origin of the left coronary artery from the pulmonary arterya report of 30 cases

Anomalous origin of the left coronary artery from the pulmonary artery （ALCAPA） is a rare congenital anomaly It demonstrated the combined effects of the absence of a normal coronary flow with a coronary steal and the profound ischemia that can produce left ventricular dysfunction and mitral regurgitation. We here introduce the postoperative management of patients with repair of anomalous ori artery from the pulmonary artery, with an emphasis on its outcome. Methods Reco gin rds of the left coronary of 31 patients with anomalous origin of the left coronary artery from the pulmonary artery receiving surgery from 1998 to 2010 were reviewed retrospectively, 10 of which were treated with the mitral valve surgically at the same time. The age of patients was 4 months to 16 years （m kilograms）, all of which were diagno edian, sed of anomalous origin of the left coronary artery from the pulmonary by echocardiography and cardiac catheterization. After surgery, electrocardiogram, echocardiography, arterial blood pressure, transcutaneous oxygen saturation and central venous pressure were monitored. Common postoperative complications in our group were analysed. And preoperative and postoperative data including area of mitral regurgitation, left ventricular systolic diameter and left ventricular distolic diameter were obtained. Cardiopulmonary bypass time and mechanical ventilation time of postoperative patients with no pneumonia were compared with those with pneumonia. Binary logistic regression was applied for the analysis of the risk factors of postoperative pneumonia. Results Of 31 patients, 30 survived after surgery with early mortality of 3.23%. One patient died of severe low cardiac output syndrome. Mechanical ventilation time was 4 hours to 168 hours hours （mean, 39.68 ± 50.52 hours; median, 18 hours）. ICU stay was 16 hours to 425 hours （mean, 111.65 ± 127.03 hours; median, 44 hours）. In our group, common postoperative complications were myocardial ischemia（n = 12, 36.4%）, infection（n = 11, 33.3%） including pneumonia （n = 10, 30.3%）, postoperative tachyarrhythmia（n = 5, 15.2%）, low postoperative cardiac output（n = 2, 6.1%）, endocarditis（n = 1, 3.0%）. Compared with preop-erative data, postoperative data including area of mitral regurgitation, left ventricular systolic diameter and left ventricular distolic diameter decreased remarkably（P 〈 0.01）, with left ventricular ejection fraction significantly improved （P 〈 0.05）. Compared with mechanical ventilation time of patients with no postoperative pneumonia, time of those with pneumonia apparently prolonged（P 〈 0.01 ） while cardiopulmonary bypass time extended （P 〈 0.05）. Mechanical ventilation time was a risk factor of postoperative pneumonia （OR = 1.041, OR 95%CI = （1.010, 1.073）. Conclusions Proper therapy strategies according to the knowledge of the ALCAPA disease and the change of postoperative pathology and physiology play an important role in avoiding the postoperative complications and improving postoperative outcomes.