Arizona Phrenic Nerve Palsy Lawyer

Nationally Recognized Arizona Birth Injury Attorneys for Nerve Palsy Cases

Understanding Infant Phrenic Nerve Injuries and Diaphragm Paralysis

Phrenic nerve palsy is a nerve injury, often caused by birth trauma, that results in paralysis of the diaphragm muscle and prevents an infant from breathing independently. Understanding this injury is the first step toward determining whether your family has a legal claim, and an Arizona phrenic nerve injury attorney can help you connect the medical facts to a potential case.

The phrenic nerve controls the diaphragm, which is the primary muscle responsible for breathing. Here is how that respiratory system works:

• Origin: The phrenic nerve originates from the cervical spine (C3, C4, and C5 nerve roots in the neck).
• Function: It sends signals from the brain to the diaphragm, telling it to contract and flatten, which draws air into the lungs.
• Vulnerability: Because of its path along the neck, the phrenic nerve is exposed to stretching or compression during a difficult delivery, making it susceptible to trauma.

When this nerve is damaged, the diaphragm on the affected side can no longer contract properly. Diaphragm paralysis in infants falls into two categories. Unilateral paralysis, which affects the hemidiaphragm on just one side, is the more common form that may allow the infant to compensate with the functioning side despite causing significant respiratory distress.

Bilateral paralysis is a far more dangerous condition affecting both sides of the diaphragm. It can lead to immediate respiratory failure that often requires emergency mechanical ventilation to keep the newborn alive.

As legal professionals at Avvo have noted, phrenic nerve damage resulting from medical procedures can form the basis of a malpractice claim when a provider’s actions fell below accepted standards. If your infant was diagnosed with diaphragm paralysis after a traumatic delivery, an infant diaphragm paralysis lawyer can evaluate whether negligence caused the injury and help you explore your options for phrenic nerve damage legal help.

How Medical Negligence Causes Phrenic Nerve Damage

Medical negligence in phrenic nerve cases typically occurs during a traumatic delivery when a physician applies excessive traction or uses improper maneuvering, causing hyperextension of the infant’s neck and stretching or tearing the phrenic nerve. A birth injury lawyer in Arizona can investigate whether the force used during your child’s delivery was appropriate given the circumstances.

Traction injuries during shoulder dystocia

Traction injuries during shoulder dystocia are the most common cause. Shoulder dystocia, a complication where the baby’s shoulder becomes lodged behind the mother’s pubic bone, requires specific maneuvers to safely free the infant. According to a literature review published in PubMed Central, shoulder dystocia management demands careful technique to avoid excessive lateral force on the head and neck. When a provider pulls too hard or at the wrong angle, the infant’s neck can hyperextend beyond its safe range, stretching the delicate nerve fibers that run from the cervical spine to the diaphragm.

Instrumental delivery

Instrumental delivery carries additional risk. Forceps and vacuum extraction are tools that, when used correctly, can assist a stalled delivery. But improper application or excessive force with these instruments can amplify the traction on the infant’s head and neck. The question in a medical malpractice case for nerve palsy is not whether these tools were used, but whether they were used appropriately and whether a reasonably competent physician would have made different decisions.

Surgical error

Surgical error can also cause phrenic nerve damage outside the delivery room. In pediatric cardiac surgeries, for example, thermal injury from electrocautery, a tool that uses electrical current to cut tissue and control bleeding, can inadvertently burn or damage the phrenic nerve where it passes near the heart. Suing for phrenic nerve injury in surgical cases involves a different set of facts, but the core legal question remains the same: did the provider violate the standard of care?

The distinction between a complication and negligence is central to every case we evaluate:

	Natural Complication	Provider Negligence
Force Applied	Controlled, appropriate traction	Excessive or lateral traction beyond accepted limits
Response to Dystocia	Recognized maneuvers (McRoberts, suprapubic pressure)	Continued pulling without repositioning
Instrument Use	Applied per clinical guidelines	Improper placement, excessive force, or prolonged application
Documentation	Clear notes reflecting clinical judgment	Missing or inconsistent records
Outcome	Injury despite proper care	Injury resulting from deviation from the standard of care

Our team reviews delivery records, fetal monitoring strips, and nursing notes to determine which column a case falls into. That investigation is what separates a difficult outcome from actionable medical malpractice.

Recognizing the Symptoms of Phrenic Nerve Trauma

Common symptoms of infant nerve damage include labored breathing, a “seesaw” breathing pattern, a weak cry, and recurrent respiratory infections. An Arizona birth trauma attorney can help connect these symptoms to the events of delivery and determine whether delayed recognition or misdiagnosis compounded the injury.

Respiratory distress is often the first and most alarming sign. As the National Heart, Lung, and Blood Institute (NHLBI) explains, newborns with breathing conditions may show shortness of breath, rapid or shallow breathing, flaring nostrils, or grunting sounds. When the diaphragm is paralyzed, these signs can appear immediately after birth.

One of the more distinctive indicators is paradoxical breathing, sometimes called “seesaw breathing.” In a healthy infant, the chest and abdomen rise together during inhalation. With a paralyzed diaphragm, the abdomen sinks inward while the chest rises, creating an alternating, rocking motion. This pattern signals that the diaphragm is not functioning properly.

A less commonly discussed sign involves hiccups. Hiccups are actually a reflex driven by the phrenic nerve. Abnormal hiccup patterns, either persistent hiccupping or a complete absence of hiccups, can indicate phrenic nerve irritation or dysfunction. While this symptom alone is not diagnostic, it provides another piece of clinical evidence that your legal help for diaphragm paralysis team can use.

Symptoms parents and providers should watch for include:

• Rapid, shallow, or labored breathing shortly after birth
• Seesaw (paradoxical) chest and abdomen movement
• Weak or absent cry
• Difficulty feeding or tiring quickly during feedings
• Recurrent pneumonia or respiratory infections
• Bluish skin color (cyanosis) during activity or feeding
• Abnormal hiccup patterns

Severe cases may lead to respiratory failure, while secondary complications like pneumonia develop because a paralyzed diaphragm cannot fully expand the lung, creating areas where fluid and bacteria collect. Feeding difficulties arise when the infant cannot coordinate breathing and swallowing.

Under Arizona Revised Statutes § 12-542, there are time limits for filing medical malpractice claims. If your infant is showing these symptoms after a difficult delivery, early documentation of these signs strengthens both the medical treatment plan and any potential legal claim.

Diagnostic Standards: The Sniff Test and Imaging

Doctors diagnose phrenic nerve palsy using chest X-rays to identify an elevated hemidiaphragm and fluoroscopy, known as the “sniff test,” to observe the diaphragm’s movement in real time. When these diagnostic steps are delayed or skipped, an Arizona medical negligence attorney can evaluate whether a failure to diagnose worsened the outcome.

The diagnostic workup typically involves several imaging studies:

• Chest X-ray: This is usually the first test ordered. An elevated hemidiaphragm, where one side of the diaphragm sits higher than the other, is the classic radiographic sign of unilateral phrenic nerve palsy. According to the NCBI Bookshelf resource on Unilateral Diaphragmatic Paralysis, this finding on X-ray should prompt further investigation.
• Fluoroscopy (the “Sniff Test”): This real-time X-ray technique asks the patient to sniff quickly while a radiologist watches the diaphragm. A paralyzed hemidiaphragm will move upward (paradoxically) instead of downward during the sniff. In infants, clinicians observe natural breathing cycles to detect this abnormal motion.
• Ultrasound: A non-invasive option that can assess diaphragm thickness and movement without radiation exposure, making it particularly useful for newborns who may need repeated monitoring.

The legal significance of these diagnostic tools is direct. If a provider dismissed respiratory symptoms as a minor infection or transient newborn issue without ordering appropriate imaging, that delay may constitute a medical misdiagnosis. Physicians use these tests to determine if the care met the medical standard. A misdiagnosis lawyer in Arizona can review the medical timeline to determine whether the standard of care required earlier testing and whether a failure to diagnose nerve palsy led to preventable complications.

Under Arizona Revised Statutes § 12-542, the clock on filing a claim can begin when an injury is discovered or should have been discovered. A missed or delayed diagnosis may affect both the medical outcome and the legal timeline.

Treatment Options and Long-Term Prognosis

Treatment for phrenic nerve palsy ranges from conservative oxygen therapy and monitoring to surgical interventions like diaphragm plication or phrenic nerve grafting for cases involving permanent damage. The type and duration of treatment directly affects the compensation a family may pursue in an Arizona birth injury settlement.

	Conservative Care	Surgical Intervention
Approach	Observation, CPAP, or mechanical ventilation	Diaphragm plication, nerve grafting, or diaphragmatic pacing
Goal	Support breathing while waiting for spontaneous nerve recovery	Restore diaphragm function when recovery stalls or nerve damage is permanent
Timeline	Weeks to months of monitoring	Performed after conservative care fails or injury is confirmed as permanent
Best For	Mild unilateral palsy with signs of improvement	Severe or bilateral palsy, or cases with no recovery after 6-12 months

For infants with milder injuries, conservative care may be enough. Continuous positive airway pressure (CPAP) or mechanical ventilation supports the baby’s breathing while the nerve attempts to heal on its own. Some infants recover function within weeks or months.

When spontaneous recovery does not occur, surgical options become necessary. Surgeons may perform diaphragm plication, a procedure where they tighten and stabilize the paralyzed diaphragm so it no longer moves paradoxically, improving lung expansion. Research published in PubMed Central on diaphragmatic paralysis after cardiac surgery discusses the effectiveness of thoracoscopic plication techniques in pediatric patients. Other options include phrenic nerve grafting, an attempt to repair the damaged nerve itself by bridging the injured segment with donor nerve tissue to restore signal transmission.

For the most severe cases, diaphragmatic pacing is an advanced option. This involves implanting a device that electrically stimulates the phrenic nerve or diaphragm muscle, similar in concept to a cardiac pacemaker. It can reduce or eliminate the need for long-term ventilator dependence.

The reality is that some infants face lifelong respiratory challenges. Chronic breathing difficulties, recurrent infections, exercise intolerance, and developmental delays from periods of low oxygen are all potential long-term consequences. A phrenic nerve palsy lawsuit accounts for these future needs, and our team works with medical experts to project the true cost of your child’s care to ensure you receive fair compensation for long term care.

Establishing Liability in Arizona Medical Malpractice Cases

To succeed in a malpractice claim in Arizona, you must prove that the medical provider breached the accepted standard of care and that this breach directly caused the phrenic nerve injury. The standard of care refers to the level of care a reasonably competent healthcare provider would have provided under similar circumstances. Proving medical malpractice in Arizona requires building a clear chain from the provider’s duty to the harm your child suffered.

The legal framework follows a specific progression:

• Duty of care: The provider had a doctor-patient relationship with you or your child, establishing a legal obligation to deliver care consistent with accepted medical standards.
• Breach of the standard of care: A qualified expert witness must testify that a reasonably competent physician in the same specialty would have acted differently. For delivery-related phrenic nerve injuries, this often means showing that the provider applied breach of the standard of care through excessive lateral traction or failing to perform recognized shoulder dystocia maneuvers.
• Causation: The breach must be directly linked to the injury. Our medical team and expert witnesses reconstruct the delivery timeline, analyzing fetal monitoring strips, nursing notes, and physician documentation to establish whether the specific maneuver or omission caused the nerve damage.
• Damages: You must demonstrate measurable harm, both economic and non-economic. This includes past and future medical bills, surgical costs, rehabilitation, assistive equipment, pain and suffering, and diminished quality of life.

A Phoenix malpractice lawyer at our firm approaches each element with the same rigor. Our team includes former defense attorneys and experienced hospital nurses who provide insider insight into hospital protocols. Our in-house nursing staff reviews the clinical records first, identifying charting gaps and inconsistencies. We then work with recognized expert witnesses in obstetrics, neonatology, or pediatric surgery to evaluate the care specific to your case.

Because our team includes former defense attorneys, we anticipate how hospitals and their insurers will try to frame the injury as an unavoidable complication. We prepare evidence and expert testimony to address those arguments directly. Every case we accept is prepared as if it will go to a jury, which puts us in a strong position whether the case resolves through negotiation or at trial.

Arizona Statute of Limitations for Birth Injury Claims

In Arizona, parents generally have two years to file a medical malpractice claim, but tolling provisions for minors may extend this deadline. A statute of limitations is a legal deadline for filing a lawsuit. Even so, consulting with an attorney about the statute of limitations in Arizona as early as possible is essential to preserving the evidence your case depends on.

The general two-year period is set by Arizona Revised Statutes § 12-542. For birth injuries involving minors, Arizona law includes tolling provisions that can pause or extend the filing deadline. Tolling is a legal term meaning the deadline is paused or delayed, often to account for the age of the child. The specific extension depends on the circumstances of your case, so we recommend getting legal guidance rather than assuming you have more time.

One important exception: claims against government-run hospitals or publicly employed physicians in Arizona have much shorter notice requirements. Missing these early deadlines can permanently bar your claim, regardless of how strong the underlying evidence is.

Acting quickly also protects the integrity of your case. Medical records, fetal monitoring data, and staffing logs are most complete and accessible in the months following delivery. The longer you wait, the greater the risk that records are altered, archived, or lost. Prompt action is essential for evidence preservation and protecting the integrity of your case. If you believe your child’s phrenic nerve injury resulted from a deadline to sue for birth injury that is approaching, contact our team to preserve your legal options.

Contact the Arizona Birth Injury Attorneys at Hastings Law Firm Today for Help

Phrenic nerve injuries in newborns are often the result of preventable medical errors, not unavoidable complications. When a provider’s actions during delivery or surgery fall below the accepted standard of care, your family deserves both answers and accountability.

Hastings Law Firm represents families across Arizona on a contingency fee basis, which means you pay no attorney fees or costs unless we recover compensation for your child. Our free case evaluations are led by a patient advocate who can review your child’s medical records and help you understand what happened and what your legal options may be.

Our team of attorneys, nurse consultants, and former defense lawyers is built specifically for cases like these. We know how hospitals respond to malpractice claims, and we prepare every case to go to trial from day one.

Contact Hastings Law Firm today to schedule a free, confidential case review. Let us help you find the answers you deserve and protect your child’s future.