Fetal Asphyxia: Causes, Birth Injuries, and Medical Negligence

Fetal asphyxia occurs when a fetus or newborn does not receive adequate oxygen because blood flow or gas exchange has been significantly impaired before, during, or immediately after birth. A prolonged or severe oxygen shortage can cause damage to the brain and other organs and may result in permanent disabilities. For families facing these consequences, determining what happened and whether the injury could have been prevented can be critically important. Kalfayan Merjanian, LLP represents families in California whose children have suffered serious injuries due to medical malpractice during pregnancy, labor, delivery, or the newborn period.

The term “fetal asphyxia” is sometimes used interchangeably with fetal hypoxia, birth asphyxia, or hypoxic-ischemic injury. These terms are related but are not necessarily identical. Medical professionals generally evaluate a combination of evidence, including fetal heart rate patterns, umbilical cord blood gases, the infant’s condition at birth, neurological findings, imaging, and other clinical information when determining whether a significant hypoxic-ischemic event occurred. The American College of Obstetricians and Gynecologists (ACOG) cautions that a low Apgar score by itself does not establish asphyxia or prove that an injury resulted from an intrapartum oxygen-deprivation event.

What Is Fetal Asphyxia?

Fetal asphyxia describes a serious impairment of oxygen and carbon dioxide exchange that can cause progressive hypoxemia, increased carbon dioxide levels, and metabolic acidosis. When oxygen delivery to the fetus is reduced for a sufficient period, the body initially attempts to protect vital organs by redirecting blood flow. If the oxygen deprivation becomes severe or prolonged, these compensatory mechanisms can fail, potentially causing injury to the brain, heart, kidneys, liver, and other organs.

One of the most serious potential consequences is hypoxic-ischemic encephalopathy, commonly called HIE. HIE is a form of neonatal brain dysfunction associated with inadequate oxygen and blood flow to the brain. Depending on the severity and timing of the injury, a child may experience seizures, developmental problems, cerebral palsy, cognitive impairment, movement disorders, or other permanent neurological disabilities.

Not every newborn who experiences oxygen deprivation will develop HIE, and not every case of HIE is caused by negligent medical care. Establishing what caused the oxygen deprivation and whether healthcare providers acted appropriately requires careful review of the circumstances surrounding the pregnancy, labor, delivery, and newborn period.

What Causes Fetal Asphyxia?

Fetal asphyxia can have many potential causes. Some occur before labor, while others develop during labor and delivery or shortly after birth.

Problems involving the placenta can interfere with oxygen delivery to the fetus. Placental abruption, for example, can cause the placenta to separate from the uterus before delivery and compromise the fetus’s oxygen supply. Other maternal conditions, including severe hypotension or complications that significantly impair maternal circulation, can also affect placental blood flow.

Umbilical cord complications can also reduce oxygen delivery. Cord prolapse, compression, or certain cord abnormalities may interfere with blood flow between the placenta and fetus. A significant interruption of placental blood flow can produce a rapid deterioration in fetal condition.

Problems during labor may also contribute to fetal oxygen deprivation. Abnormal uterine activity, prolonged or complicated labor, or other circumstances can place stress on the fetus. An abnormal fetal heart rate tracing may provide an important warning that the fetus is not tolerating labor appropriately. ACOG has emphasized the importance of appropriately interpreting fetal heart rate patterns and using standardized terminology and training for clinicians who monitor patients during labor.

In some situations, fetal asphyxia may be associated with a failure to recognize that delivery should occur promptly. If a fetus shows signs of significant compromise, the medical team may need to take appropriate steps to improve fetal oxygenation or proceed with an urgent delivery, depending on the circumstances.

Can Fetal Heart Rate Monitoring Identify Oxygen Deprivation?

Electronic fetal monitoring can provide important information about how a fetus is responding to labor. Changes in fetal heart rate may indicate that the fetus is experiencing reduced oxygenation or other stress. Clinicians must interpret these patterns in the context of the mother’s condition, contractions, medications, stage of labor, and other circumstances.

An abnormal tracing does not automatically mean that permanent brain injury has occurred. Likewise, a normal tracing does not eliminate every possible cause of a birth injury. Instead, fetal monitoring is one piece of evidence that may help physicians determine whether the fetus is tolerating labor and whether intervention may be necessary.

When an infant later develops HIE or another neurological injury, the fetal heart monitoring strips may become particularly important in reconstructing the events leading up to delivery. Experts may evaluate whether concerning patterns were recognized, whether appropriate interventions were attempted, and whether there was an unreasonable delay in responding to signs of fetal compromise.

What Injuries Result From Fetal Asphyxia?

The consequences of fetal asphyxia vary considerably depending on the severity and duration of oxygen deprivation and the child’s individual circumstances. A significant hypoxic-ischemic event can cause injury to multiple organ systems, but neurological damage is among the most serious potential consequences.

Children who sustain brain injuries associated with oxygen deprivation may experience seizures, developmental delays, problems with muscle tone and movement, difficulties with speech and communication, cognitive impairments, vision or hearing problems, and other neurological disabilities. Severe injuries may result in cerebral palsy or profound lifelong impairments.

Some children initially appear to recover from a difficult delivery but later demonstrate developmental or neurological problems. For this reason, the absence of an immediately obvious disability does not necessarily establish that an infant suffered no neurological injury. Physicians may use neurological examinations, EEG testing, MRI scans, blood tests, and other evaluations to assess the child’s condition.

Does a Low Apgar Score Prove Fetal Asphyxia?

An Apgar score is an assessment of a newborn’s condition immediately after birth and response to resuscitation. However, a low Apgar score is not, by itself, a diagnosis of fetal asphyxia or HIE.

Many factors can influence an Apgar score, including gestational age, medications given to the mother, resuscitation, and respiratory or neurological conditions. A persistently low score can be an important clinical finding, but it must be considered alongside other evidence. Umbilical cord blood gases, fetal heart rate patterns, neurological examinations, neuroimaging, placental pathology, and evidence of organ dysfunction may all be relevant when evaluating a suspected hypoxic-ischemic event.

This distinction can matter in a birth injury investigation. A low Apgar score may raise questions about what happened before or during delivery, but additional evidence is generally needed to establish the nature, timing, and cause of an injury.

Can Fetal Asphyxia Be Caused by Medical Negligence?

Fetal asphyxia can occur even when medical providers meet the applicable standard of care. However, in many instances, a preventable medical error may contribute to oxygen deprivation and a resulting birth injury.

Potential concerns can include failing to recognize significant changes in fetal heart rate, failing to respond appropriately to a nonreassuring fetal heart rate tracing, delaying an indicated cesarean delivery, improperly managing complications involving the umbilical cord or placenta, or failing to recognize a maternal condition that is compromising fetal oxygenation.

Questions can also arise about the management of an emergency delivery. If a healthcare provider recognizes that a fetus is in serious distress but does not take appropriate action within the circumstances of the case, the resulting delay may potentially contribute to brain injury.

The care provided immediately after birth may also be relevant. A newborn who is not breathing adequately may require prompt resuscitation. If the medical team fails to recognize the need for resuscitation or does not provide appropriate neonatal care, additional injury may occur. The medical literature recognizes that effective resuscitation is an important component of care for an infant affected by asphyxia.

How Is a Fetal Asphyxia Birth Injury Case Investigated?

A thorough investigation generally requires more than reviewing the infant’s diagnosis. Attorneys and medical experts may need to reconstruct the events over the course of the pregnancy, labor, delivery, and newborn period.

Relevant records can include prenatal records, maternal vital signs, fetal monitoring strips, nursing documentation, physician notes, medication records, delivery records, operative reports, umbilical cord blood gas results, Apgar scores, neonatal resuscitation records, NICU records, imaging studies, EEG results, laboratory testing, and placental pathology.

The timing of the injury is often particularly important. A medical expert may analyze whether the available evidence is consistent with an acute event immediately before delivery, a longer period of oxygen deprivation, an injury that developed before labor, or another cause of neonatal encephalopathy. ACOG has noted that neonatal encephalopathy can have multiple potential causes, making careful evaluation of the entire clinical history important when assessing causation.

In a California medical malpractice case, expert testimony is important because the plaintiff must establish the applicable standard of care, a breach of that standard, and a causal connection between the provider’s conduct and the injury. Medical malpractice claims involving the care or treatment provided by a healthcare provider generally require expert testimony addressing these issues.

What Are the Legal Time Limits for a California Birth Injury Claim?

Families should not assume that they can wait indefinitely to investigate a suspected birth injury. California imposes specific deadlines on medical malpractice claims, including claims involving injuries to children.

California Code of Civil Procedure section 340.5 provides a three-year outside period from the date of injury or one year from the date the plaintiff discovers, or should have discovered, the injury, whichever occurs first, subject to statutory exceptions and special rules. The statute contains separate provisions addressing minors, including a rule for children under six years of age that can extend the filing period to the child’s eighth birthday in certain circumstances.

California law also requires advance written notice to a healthcare provider at least 90 days before filing a medical malpractice lawsuit. Because the deadlines and requirements can depend on the facts of the particular claim, families should have a potential case evaluated as soon as possible.

How Can a Birth Injury Attorney Help After Fetal Asphyxia?

When a child has suffered a serious injury following suspected fetal asphyxia, parents may have questions about whether the injury could have been prevented and what caused the oxygen deprivation. A detailed review of the medical records can help identify the sequence of events and determine whether there are grounds for a medical negligence claim.

The long-term consequences of a severe birth injury can affect nearly every aspect of a child’s life. A child may require ongoing medical treatment, therapy, assistive equipment, educational services, in-home care, or other forms of support. The family may also face substantial future expenses that are difficult to estimate without input from appropriate medical and life-care experts.

Kalfayan Merjanian, LLP helps California families investigate serious birth injuries and pursue accountability when medical negligence has caused preventable harm. If your child experienced oxygen deprivation, HIE, or another serious neurological injury before, during, or shortly after birth, contact Kalfayan Merjanian, LLP to discuss the circumstances of the delivery and learn whether a legal claim may be available. Early investigation can be important for preserving medical evidence, understanding the cause of the injury, and protecting the family’s legal rights.