Double inlet left ventricle
57 dilv, hrhs, coarc
The tricuspid valve normally connects to the right pumping chamber (ventricle), while the mitral valve connects to the left ventricle. These valves act as one-way doors that enable blood to flow from the atria to the ventricles while preventing blood from returning to the atria. The ventricles are separated by a wall called the septum.
Both the tricuspid and mitral valves in babies with this defect allow blood to flow into the left ventricle. Only the left ventricle is functional. The right ventricle is weak and underdeveloped because it is not used.
Since children with this condition only have one working ventricle in their heart, it is also known as a single-ventricle heart defect. Single-ventricle defects are among the most difficult heart birth defects to diagnose.
Your doctor will examine your infant, monitor their pulse, and listen to their heart to diagnose this condition. Doctors will also detect a heart murmur in children with a double inlet left ventricle, which is the sound of blood flowing in the heart in an abnormal way.
Single ventricle heart defect and treatment explained – dilv
Hearts with both atrioventricular (AV) valves associated with and attached to one ventricular chamber of left ventricular morphology are known as double inlet left ventricles (DILV).  One of the two AV valves can be more than 50% straddling the ventricular septum. [two]  The AV valves are similar to the tricuspid and mitral valves. The AV valve near the free wall has mitral valve morphology, while the AV valve near the septal wall has tricuspid valve morphology.  However, in many cases of DILV, the AV valve structure isn’t distinct enough to distinguish morphologic tricuspid and mitral valves accurately. [two] Up to 15%–20% of patients have hypoplasia and stenosis of one AV valve. In 14 percent of cases, the AV valve near the septum straddles the VSD and enters the narrow outlet chamber. 1st  The left ventricular chamber has a smooth septal wall and a free wall on one side with several papillary muscles, which is typical of the left ventricle.  The antero-superior shoulder is often borne by the incomplete right ventricle (outlet chamber).  The smooth ventricular septum is anterior and leftward near the outlet chamber in left-handed ventricular topology or L-ventricular loop (65%). It is anterior and rightward in right-handed ventricular topology or D-ventricular loop (35 percent). On the inferior or diaphragmatic wall of the left ventricle, there is always a broad muscle bundle called the posterior median ridge that runs from base to apex between the AV valves. 1st
Double inlet ventricle: pulmonary artery band
Abby had a complicated congenital heart defect in which only one of the heart’s two lower pumping chambers (ventricles) is developed enough to operate properly, according to Jack Rychik, MD, director of the Fetal Heart Program.
Abby required a series of cardiac operations to rebuild her tiny heart and reroute blood in order to survive her treatment for double inlet left ventricle. While surgery does not restore normal circulation to children with a double inlet left ventricle, it does allow their hearts to better pump blood to their lungs and other parts of their bodies.
The SDU is the world’s first birthing center devoted solely to mothers who are bearing babies with identified birth defects such as a double inlet left ventricle. The SDU helps these babies to be born in a pediatric hospital, where they can receive the best possible treatment from the moment they are born.
Abby’s health began to deteriorate at the age of three weeks. She was malnourished and her blood oxygen levels were low. A cardiologist examined her and recommended that she be admitted to the CICU. A follow-up echocardiogram revealed a tumor in her right atrium called an atrial myxoma that was rapidly developing. The tumor, in combination with the double inlet left ventricle, caused an extremely fast heart rate.
Double inlet ventricle
The segmental, sequential approach to heart malformation examination and classification has undeniably increased the diagnosis and classification of complex congenital heart disease (CHD).
The importance of considering malformed hearts in terms of atrial, ventricular, and arterial components was first stressed by De la Cruz (1) and Van Praagh (2–4), but in our opinion, the merit of systematic categorization and clinical implementation must be credited to Anderson and co-workers (5–11).
When considering the diagnosis of any CHD, think of the heart as a three-story house. The platform, the ventricles, the first floor, and the great arteries, the second floor, are bound by valve orifices and separated by septa (Figure 1). (12, 13).
Figure 1: Congenital heart disease segmental review. Atria, ventricles, and the great arteries form the normal heart, which are joined at atrioventricular and ventriculo-arterial junctions [partially updated from Refs. (12, 13)].