Related Experiment Video
Updated: Aug 5, 2026
08:08
Increasing Pulmonary Artery Pulsatile Flow Improves Hypoxic Pulmonary Hypertension in Piglets
Published on: May 11, 2015
Pulmonary Hypoplasia
Aneesha Geraghty1,2, Patrick Smith2,3, Kristen Arnold2,4,5
1University of Cincinnati College of Medicine, Cincinnati, Ohio.
Neoreviews
|July 31, 2026
Summary
Pulmonary hypoplasia, a severe congenital disorder impairing fetal lung development, presents variable outcomes. Advances in prenatal diagnosis and interventions offer hope, but ongoing research is crucial for improving infant survival and long-term health.
Area of Science:
- Neonatology
- Pediatric Pulmonology
- Fetal Medicine
Background:
- Pulmonary hypoplasia is a rare congenital disorder of impaired fetal lung development.
- It stems from diverse etiologies like congenital diaphragmatic hernia and prolonged oligohydramnios.
- This condition significantly contributes to neonatal morbidity and mortality.
Purpose of the Study:
- To review the current understanding of pulmonary hypoplasia.
- To discuss diagnostic advancements and prenatal interventions.
- To outline current and future management strategies for affected infants.
Main Methods:
- Review of current literature on pulmonary hypoplasia.
- Analysis of diagnostic tools including fetal ultrasonography and MRI.
- Evaluation of prenatal interventions and postnatal management approaches.
Main Results:
- Improved prenatal diagnosis through advanced imaging.
- Promising results from prenatal interventions like fetal endoscopic tracheal occlusion.
- Persistent challenges in long-term outcomes for survivors, including impaired growth and neurodevelopment.
Conclusions:
- Pulmonary hypoplasia requires multidisciplinary, individualized postnatal care.
- While survival has improved, long-term morbidity remains a concern.
- Further research is essential to optimize clinical outcomes and mitigate complications.
Related Concept Videos
01:30Pulmonary Hypertension: Classification and Pathogenesis
Pulmonary hypertension (PH) is a severe health condition in which the mean pulmonary arterial pressure increases to 25 mmHg or more, even when the body is at rest. This high pressure in the blood vessels that transport blood from the heart to the lungs can cause various symptoms, including shortness of breath, can lead to right heart failure, and significantly affect the overall quality of life.
There are various classifications for PH, each relating to different underlying causes and also...
There are various classifications for PH, each relating to different underlying causes and also...
01:10Atelectasis II: Pathophysiology
Atelectasis develops when alveoli lose their air and collapse inward. Because lung tissue is naturally elastic, these air sacs shrink rather than remaining open. Collapsed alveoli are no longer ventilated, reducing their role in gas exchange. Blood flow may continue in these regions, creating a ventilation–perfusion mismatch. Clinical findings include decreased breath sounds, dullness to percussion, reduced chest expansion, and decreased tactile fremitus as sound transmission through collapsed...
01:29Pulmonary Embolism I: Introduction
Pulmonary embolism (PE) occurs when a thrombus, fat or air embolus, amniotic fluid, or tumor tissue blocks one or more pulmonary arteries. These blockages originate in the venous system or the right side of the heart.EtiologyPE primarily arises from deep vein thrombosis (DVT) and other hypercoagulable states, such as inherited thrombophilias. Additional etiological factors include venous stasis, commonly seen in obesity, and endothelial injury from surgery and trauma. Less common causes include...
01:19Pulmonary Embolism I: Introduction
A blood clot, or thrombus, is a semi-solid mass composed of fibrin, platelets, and red blood cells. When it forms within a vessel, it can obstruct blood flow, known as thrombosis. If part of the clot detaches, it becomes an embolus that can travel and block distant vessels. When this occurs in the pulmonary arteries, it causes a condition known as pulmonary embolism (PE).Origin and ImpactMost often, the embolus originates from a thrombus in the deep veins of the lower limbs, a condition called...
01:21Acute Respiratory Failure-II
Type I Respiratory Failure, or hypoxemic respiratory failure, occurs when the partial pressure of oxygen (PaO2) in arterial blood falls below 60 mmHg while breathing room air without a corresponding increase in arterial carbon dioxide levels (PaCO2). This condition highlights a significant impairment in the lungs' capacity to oxygenate the blood.
The underlying physiological abnormalities that contribute to hypoxemic respiratory failure include:
The underlying physiological abnormalities that contribute to hypoxemic respiratory failure include:
01:17Pulmonary Cycle: Exhalation
In terms of human respiration, the act of expelling air, known as exhalation (or expiration), operates on the principle of pressure gradients. During expiration, the pressure within the lungs exceeds that of the surrounding atmosphere. Under normal conditions, quiet breathing involves passive exhalation and is free of muscular contractions. This is because the exhalation process is driven by the natural elastic recoil of the lungs and chest wall, both of which have an inherent tendency to...