Gastroesophageal Reflux Nursing Care Management

Gastroesophageal reflux (GER) is stomach contents, acid and digestive enzymes, flowing back into the esophagus, causing heartburn and regurgitation. In infants it is mostly physiologic and self-resolving, so the work is sorting the spitty-but-thriving baby from the one with red flags. Occasional reflux is normal; persistent or severe reflux can become gastroesophageal reflux disease (GERD) and needs intervention. The complications that move a case from physiologic to pathologic are failure to thrive, erosive esophagitis, esophageal stricture, and chronic respiratory disease.

What is Gastroesophageal Reflux?

In infants, an immature lower esophageal sphincter (LES) produces frequent transient lower esophageal relaxations (tLESRs), letting gastric contents flow back into the esophagus. Reflux is a common physiologic phenomenon in the first year: as many as 60-70% of infants have emesis during at least 1 feeding per 24-hour period by age 3-4 months. The line between physiologic and pathologic reflux is not just the number and severity of episodes on intraesophageal pH monitoring; it is the presence of reflux-related complications.

Classification

• Physiologic (functional) reflux. No predisposing factors; growth and development are normal, and pharmacologic treatment is usually unnecessary.
• Pathologic reflux (GERD). Complications occur, requiring careful evaluation and treatment.
• Secondary reflux. An underlying condition predisposes to reflux; examples are asthma (which may itself be caused or worsened by reflux) and gastric outlet obstruction.

Pathophysiology

Reflux after meals happens in healthy people, but those episodes are transient and cleared quickly. Three structural and mechanical factors matter here. The angle of His (between the esophagus and the axis of the stomach) is obtuse in newborns and decreases as infants develop, building a more effective barrier against reflux. A hiatal hernia can displace the LES into the thoracic cavity, where lower intrathoracic pressure facilitates reflux, though a hiatal hernia by itself does not predict reflux. Resistance to gastric outflow raises intragastric pressure and drives reflux and vomiting, as in gastroparesis, gastric outlet obstruction, and pyloric stenosis.

Statistics and Incidences

Reflux is most severe in infancy. It peaks at age 1-4 months but occurs at all ages, even in healthy teenagers. About 85% of infants vomit during the first week of life, and 60-70% show clinical reflux at age 3-4 months. Symptoms abate without treatment in 60% of infants by age 6 months, as they sit upright and start solids, and resolve in roughly 90% by age 8-10 months.

Clinical Manifestations

Symptoms come from the consequences of emesis (poor weight gain) or from acid exposure of the esophageal lining.

• Heartburn. Harder for children to describe; they usually report a stomach ache or chest discomfort after meals.
• Dental problems. In toddlers and older children, excessive regurgitation erodes tooth enamel.
• Esophagitis, which shows as crying and irritability in the nonverbal infant.
• Failure to thrive from insufficient calories due to repeated vomiting and nutrient losses.
• Regurgitation or vomiting after meals, especially with resistance to gastric outflow.

Assessment and Diagnostic Findings

Most cases are diagnosed from history and physical exam alone.

• Manometry assesses esophageal motility and LES function.
• Esophagogastroduodenoscopy is useful when patients fail medical therapy; it visualizes the mucosa for peptic ulcer disease, Helicobacter pylori, strictures, and peptic esophagitis.
• Histologic findings of peptic esophagitis: basal cell hyperplasia, extended papillae, and mucosal eosinophils.
• Upper GI imaging series evaluates upper GI anatomy, but contrast imaging is neither sensitive nor specific for reflux.
• Gastric scintiscan with milk or formula containing a small amount of technetium sulfur colloid assesses gastric emptying and can reveal reflux (not its degree).
• Esophagography under fluoroscopy can show esophageal peristalsis but should not be used to gauge reflux severity.
• Intraesophageal pH probe monitoring. A continuous distal esophageal pH probe documents reflux severity and frequency.
• Intraluminal esophageal electrical impedance (EEI) detects both acid and nonacid reflux by measuring retrograde flow.

Medical Management

Medical therapy generally gives a good long-term response, often letting you stop antisecretory medications during infancy.

• Positioning. Avoid the seated or supine position shortly after meals; prone positioning may be recommended for at least the first postprandial hour, and prone sleeping has been shown to decrease reflux frequency.
• Dietary measures. Thickening formula helps, especially when excessive vomiting comes with poor weight gain; younger formula-fed infants may benefit from a pre-thickened formula (such as Enfamil-AR). For breastfed infants, increase feeding frequency, thicken expressed milk, and consider early rice cereal feedings at age 3 months. For children, give small frequent meals and avoid greasy and spicy foods, chocolate, peppermint, tomato products, citrus, and caffeine, which lower LES pressure or slow gastric emptying.
• Step-up and step-down therapy. Per NASPGHAN guidelines and under a pediatric gastroenterologist, step-up therapy progresses from diet and lifestyle changes to H2-receptor blockers (ranitidine, nizatidine) to proton pump inhibitors (omeprazole, lansoprazole).
• Fundoplication. Surgery reestablishes the antireflux barrier without obstructing the food bolus; the Nissen fundoplication, a complete 360° wrap, best controls reflux symptoms.

Pharmacologic Management

A therapeutic response may take up to 2 weeks.

• Antacids give symptomatic relief in infants and can ease constipation (aluminum) or loose stools (magnesium).
• Histamine H2 antagonists do not reduce reflux frequency but cut acid in the refluxate by inhibiting acid production; all are equipotent at equivalent doses and work best in nonerosive esophagitis. They are the drugs of choice for children, with well-established pediatric doses and liquid forms.
• Proton pump inhibitors are for patients needing complete acid suppression (infants with chronic respiratory disease or neurologic disabilities); give with the first meal of the day. For nasogastric or gastrostomy tubes, mix granules with acidic juice or a suspension, then flush the tube to prevent blockage.

Nursing Management

Nursing Assessment

• History. Adult-type symptoms (heartburn, vomiting, regurgitation) cannot be readily assessed in infants; pediatric patients typically cry and have sleep disturbance and decreased appetite.
• Physical exam. No classic physical signs exist in children (though an infant arriving in a bib is a tip-off); one exception is the uncommon Sandifer syndrome, often misdiagnosed as spastic torticollis.

Nursing Diagnosis

• Imbalanced nutrition: less than body requirements related to inability to take in enough food because of reflux.
• Acute pain related to irritated esophageal mucosa.
• Imbalanced nutrition: more than body requirements related to eating to ease the pain.
• Risk for aspiration related to esophageal compromise affecting the LES.
• Deficient knowledge related to lack of information about the disease process.
• Anxiety related to a change in the infant's health status (possible surgery).
• Risk for injury related to abnormal blood profile.

Nursing Care Planning and Goals

• The patient takes in daily nutritional requirements for activity level and metabolic needs.
• Pain is relieved.
• The patient reaches and maintains adequate body weight.
• The patient maintains a patent airway.
• The patient gains knowledge of actions that reduce reflux.
• Caregivers report anxiety reduced to none or mild.
• The child has no esophageal bleeding (negative Guaiac tests).
• The child shows appropriate growth.

Nursing Interventions

• Improve nutrition. Measure weight and height accurately; give small frequent high-calorie, high-protein meals; keep the patient upright at least 2 hours after meals and avoid eating 3 hours before bedtime; have them eat slowly and chew well; make gradual dietary changes; and keep activities away from meals and snacks.
• Relieve pain. Assess for heartburn and carefully locate the pain, distinguishing reflux from angina pectoris.
• Prevent aspiration. Keep the patient out of the supine position, sit them upright after meals, avoid highly seasoned food, acidic juices, alcohol, bedtime snacks, and high-fat foods, and elevate the head of bed.
• Health education. Teach the disease process, modifiable habits, and medications, including effects and side effects, and to report persistent symptoms despite treatment.
• Relieve anxiety. Let parents voice concerns and ask questions about the illness, treatment, surgery, and recovery; encourage them to stay and assist in care; answer frequently with clear, truthful explanations using pictures, drawings, and models.
• Prevent injury. Tell parents the infant usually outgrows the disorder and reaches normal function by 6 weeks of age, and that persistent reflux usually resolves by 6 months; prepare the family for diagnostic studies and possible surgery; and teach Guaiac testing of stool and vomitus with return demonstration.

Evaluation

Goals are met when the child takes in daily nutritional requirements, reports relieved pain, reaches and maintains adequate body weight, maintains a patent airway, shows increased knowledge of reflux-reducing actions, has no esophageal bleeding on Guaiac testing, and shows appropriate growth, and when caregivers report anxiety reduced to none or mild.

Documentation Guidelines

• Individual findings, contributing factors, interactions, the nature of social exchanges, and specifics of behavior.
• Intake and output.
• Cultural and religious beliefs and expectations.
• Plan of care and teaching plan.
• Responses to interventions, teaching, and actions performed.
• Attainment of or progress toward the desired outcome.