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272 CLINICAL MANAGEMENT OF SWALLOWING DISORDERS
FIGURE 12–1. Market-based feeding assistive devices: breastfeeding positioning, bottle nipple shapes.
FIGURE 12–2. Vacuum-assisted bottles for oral-motor dysfunction.
12. TREATMENT OF FEEDING AND SWALLOWING DISORDERS IN INFANTS AND CHILDREN 273
way closure and sequential pharyngeal contractions.
Positioning an infant optimally while feeding is as important as prescribing flow rates. Resting infants semi-elevated on their side promotes physiolog­ical stability.8 While common for breastfeeding, mirroring this posture for bottle-feeding improves their ability to delicately coordinate the enormously complex sensorimotor task of swallowing.
Depending on the age and disorder of the child, interventions to improve timing will vary. Employ­ing the least-restrictive modification improves com­pliance and reduces barriers to normalize feeding patterns. An example of this for infants is prescrib­ing unaltered expressed milk or formula despite radiographic, endoscopic, or clinical symptoms of aspiration. While thickening the liquids may per-
These
9
arise include mistimed swallows, ineffective pha­ryngeal clearance, and aspiration. Timing disorders typically occur from inaccurate signals from the brain to swallowing muscles. It may also result from hyposensitivity where a child cannot feel material encroaching on the base of tongue to initiate air-
mit better synchrony of pharyngeal transit time, it is cumbersome for the family, extra calories are added,
10
and it is costly. Other feeding parameters can be modified before advising thickeners. Nip­ple flow attenuation, pacing, and positioning are an integral aspect of responsive feeding.
11–13
measures may circumvent the need for thickeners.
Bottle flows differ widely among brands.14 Determining an appropriate fit takes into account liquid viscosity, oral fit, and vacuum strength. Pados et al illustrated these considerable variances in 2019.
4
274 CLINICAL MANAGEMENT OF SWALLOWING DISORDERS
Identifying and understanding infant conscious­ness will impact feeding recommendations. There are 6 basic states: deep sleep, light sleep, drowsiness, quiet alert, active alert, crying.
They can also hold a dry swallow midsequence with the larynx elevated to improve this motion (the Mendelsohn maneuver).
An EMST device can be found by scanning the ac-
companying QR code.
Older children who can follow directions have the opportunity to acquire swallow sequences that reduce premature spillage into the hypopharynx and airway. A preparatory set of “1, 2, 3, swallow” aids motor planning to link oral and pharyngeal coor­dination. If the bolus tends to slip in spite of this safeguard, having children lower their chin to their chest will allow gravity to entrap the bolus until they are ready to swallow. Whenever possible, cre­ate visualization of this during their radiographic or endoscopic instrumental exams. Children and their caregiver counterparts can better understand the pur­pose of maneuvers, which may seem esoteric, when watching misdirected material plunge into the airway.
If the pharyngeal defect relates to ineffec­tive muscle stripping, strengthening programs are advised to reduce stasis. This intervention requires active participation of the child. Recall that any pre­scribed program involves time commitment from the child and caregiver. Ensure that each exercise has a specific purpose and is not part of a “catch­all” plan that takes a long time to complete. Review the task and rationale with examples of pharyngeal retention. An example exercise used for tongue base residual is the Masako maneuver. It works against resistance — a critical aspect of exercise programs. Children extend their tongue forward and gently hold it between their teeth while effortfully swallow­ing their saliva. If material is pooled in the pyriform sinuses, investigation of cricopharyngeal function is in order to ensure hypertonicity or hypertrophy are not impeding flow. When this is unobstructed, enhancing pharyngeal contraction and laryngeal elevation may improve clearance into the esopha­gus. Pharyngeal compression can be achieved in a play-based task where the child attempts to blow up balloons or incorporate an expiratory muscle strength trainer (EMST).
15,16
Pyriform pooling can also minimize if laryngeal excursion is robust. Hav­ing children sing to their highest achievable note and hold it mimics this pattern for swallowing.
17
Pharyngeal residuals are most prominent in children who consume solid foods. The afore­mentioned therapy targets may not be possible in children with cognitive and behavioral disor­ders. In these situations, adjusting the texture may be the most effective means of improving swallowing. Downgrading from chopped solids to puree (International Dysphagia Diet Standardisation Initiative [IDDSI] of 6 to 4) or puree to smoothies (IDDSI 4 to 3) might reduce adherence on pharyngeal cavities and walls.
Disrupted pharyngeal swallowing can lead to aspiration. Aspiration does not result in aspiration pneumonia. variables that grade risk. Children who are healthy at baseline, do not have pulmonary conditions, and can follow directions to cough throughout a meal, are less likely to develop aspiration pneumonia. Reflexive and volitional coughing are vital behaviors that protect the
21,22
lungs. silently, basis for overly conservative recommendations. Many infants with findings of silent aspiration will have spontaneous resolution of this pattern without ever developing airway congestion. Pairing clinical signs with objective markings follows suit with holistic care that is least restric­tive on nutrition and hydration. For children with comorbidities, lung pathologies (ie, bronchopul­monary dysplasia), silent aspiration, and poor cough strength, therapeutic interventions are far more conservative. This degree of medical complexity is typically managed among a team of clinicians and will likely require discussions prior to adjusting oral intake to assess risk/ benefit ratio. Serial instrumental exams are typi­cally performed to incorporate objective findings prior to upgrading textures in a medically fragile child who silently aspirates.
Most infants who aspirate do so
23,24
though this alone should not be the
18–20
There are numerous
12. TREATMENT OF FEEDING AND SWALLOWING DISORDERS IN INFANTS AND CHILDREN 275

COLLABORATIVE GOAL SETTING

On completion of a clinical evaluation and diag­nostic testing, therapy targets are created. When­ever possible, ask children about their vision of the treatment outcome. See if this reconciles with family, caregiver, and medical team goals. Provide education for the child and family to conceptual­ize their dysphagia, the risks, and plausible out­comes. Consider an 8-year-old child with cerebral palsy who is entirely reliant on a feeding tube and proposes eating a cheeseburger as a therapy goal. A compassionate counter-response would acknowl­edge their high-arching goal and outline miniature achievements to begin this process. The clinician may set a goal for secretion management, cough strengthening, and 8 ounces of daily water intake. Should this milestone be met, a pureed meat soup could be the subsequent step advancing toward a cheeseburger. If it appears there is no likelihood of the child achieving a stated goal, biofeedback instru­mental exams and pulmonary health education can reframe clinical perspectives when negotiating oral intake options.
In the setting of severe intellectual impairment, families and caregivers will be driving the conversa­tion of therapy goals. Sometimes these discussions are disheartening because if a child is unable to interact, such as an acquired anoxic brain injury, therapy options are limited. If children present with a feeding tube, tracheostomy for chronic respiratory failure, and cannot follow directions, their candidacy for swallowing therapy is poor. However, children may be evaluated for swallowing therapy who just completed chemotherapy, have emerging cognition, tolerate a speaking valve on their tracheostomy, and demonstrate purposeful movement. These reflect numerous tangible achievements as they prepare for oral hydration and nutrition.
A unique twist on dysphagia that is largely unre­lated to motor dysfunction can be seen in autism spectrum disorder (ASD). interpret benign events as threatening and can result in oral aversions, taste and texture intolerance, and result in growth faltering. Many children on the spectrum are supported by a variety of clinicians, including occupational therapy and psychology. Suc-
25,26
Sensory systems may
cessful desensitization, emotional regulation, and oral acceptance may be in group settings or with cotreatment from other disciplines. Meal coaching and developing healthful ritualistic patterns while integrating novel sensory stimuli are typical therapy goals for children on the autism spectrum. These programs may span months to years. Gaining chil­dren’s trust during the process and acknowledging their challenging new experiences improves rapport and the likelihood of favorable outcomes.
Partnering With Pediatricians
Primary care physicians are the linchpin of a child’s health care management. They have longitudinal relationships with children, their family, and caregiv­ers. After years of building trust and observing med­ical trends, they will be the cornerstone of medical decisions. Depending on children’s complexity, they may create a direct referral for feeding and swallow­ing therapy. If a referral is made among a team of specialists, such as a neurologist or otolaryngologist, maintain contact with the pediatrician. They are ulti­mately responsible for coordinating varying disci­plines such as sequelae following prematurity. Their perspective is indispensable as clinicians develop treatment plans. Historically, the pediatrician will be privy to key players who are engaged in the child’s care and gauge what broad goals may be possible based on responses to other interventions. The clinician should maintain an open dialogue of the diagnostic findings, additional proposed testing, and progress with the goals set forth. Primary care physicians also can synthesize children’s dysphagia in a holistic context and make predictions on their overall well-being.
Multidisciplinary Feeding Teams
Many institutions have established feeding teams that span multiple specialties, including speech pathology, occupational therapy, physical therapy, lactation, registered dieticians, behavioral medicine, gastroenterology, and otolaryngology. The benefit of these teams is a unifying perspective on feeding
276 CLINICAL MANAGEMENT OF SWALLOWING DISORDERS
S
and swallowing from varying angles. The clinicians will typically have regular meetings to discuss cases and reassess management techniques. Cotreatment may occur in severe cases such as oral aversion to improve responses with novel texture and taste. These exposures may be highly anxiety provok­ing and dysregulate a child’s sensory system. Psy­chologists can address emotional wellness, while an occupational therapist may offset digestive hyper­sensitivity with another physical task or desensitiza­tion maneuver. As illustrated, the multidisciplinary approach is particularly beneficial when addressing complex feeding issues with numerous contribut­ing factors. Some programs offer intensive inpatient rehab, day treatment, or high-intensity outpatient interventions.
tarch-Based Thickeners
Utility of Liquid Thickeners
In some situations, oral intake can only be deemed safe by altering liquid viscosity. If all efforts to safe­guard swallowing with pacing and positioning are unsuccessful, thickening agents or carbonated bev­erages dysphagia are starch and gum based. Brand names associated with each are depicted in Figure 12–3. Replicating precise liquid thickening across all feed­ings is challenging. over time and requires controlled procedures for it to mirror what was prescribed by the clinician. Thickening human milk is particularly challenging. Unless the digestive enzymes are autoclaved, starch­based agents will not alter the thickness.
27
may help. Thickening additives used in
28
The material is often unstable
31
29,30
Gum-Based Thickeners
FIGURE 12–3. Liquid thickeners.
12. TREATMENT OF FEEDING AND SWALLOWING DISORDERS IN INFANTS AND CHILDREN 277
are also safety concerns associated with thickening infant formula as it can delay gut emptying and cause necrotizing enterocolitis.
32–34
Preterm and medically complex infants com­monly experience dysphagia and gastroesophageal reflux disease. A decision to alter the liquid viscos­ity to address either issue must be a collaborative pursuit among their providers to assess whether the benefits outweigh risks. Older children may know no other means of liquid texture if they have con­genital dysphagia due to a genetic condition or neu­romuscular disease. Others with acquired dysphagia could find the viscosity unpleasant, placing them at risk for dehydration. Temperature and flavor are options to work within the confines of a prescribed liquid thickness. Additionally, a naturally thick mate­rial such as a nectar or smoothie may be preferred. Incorporating the child’s preferences will improve compliance.
Consider the overall caloric consumption if thick­eners are added to a child’s diet. In some cases, it may increase significantly. Monitor weight closely for changes in gain patterns. Consult with the pediatrician and dietician if weight percentile trends are adversely impacted.
Prescribing thickening liquids has risks that can be equal to those associated with aspira­tion. As such, reintegrating unaltered liquids is advised when this is deemed safe. A study published in 2017 investigated a systemic weaning process for children who were consuming thickened liquids due to aspiration concerns. They reduced the thickness by 10% every 2 weeks. The rationale for their approach was that gradual reintegration of thinner fluids would allow progressive adaptation of the swallowing mechanism over time. In the 50 children who underwent this protocol, 39 were able to fully upgrade to thin liquids. Six children tolerated partial reduction and thickening, while 5 remained on the same liquids because of aspiration risk.
35
Aspiration Versus Sensory Etiologies
Instrumental swallowing evaluations will illustrate whether mealtime distress relates to mechanical problems or if the act of swallowing itself over­whelms the sensory system. Symptoms of aspira­tion such as coughing, gagging, and throat clearing may arise if a child is presented with an unfamil­iar texture, taste, or temperature. Understanding the evolution of sensitivity is important. Children with a history of eosinophilic esophagitis (EoE) experience legitimate discomfort and food impac­tion until their condition is treated. The aftermath may be that swallowing feels threatening even if an esophogastroduodenoscopy (EGD) has con­firmed healthy and pliable esophageal mucosa. The memory and vagal upregulation can prohibit seam­less meal reintegration. This may also occur in chil­dren whose gastroesophageal reflux (GERD) was recently addressed by medication, diet, or position­ing modification.
Once a flexible endoscopic swallowing exam (FEES) or a fluoroscopic swallowing study (VFSS) confirms that swallowing does not result in airway invasion or significant pharyngeal stasis, explore all other possibilities before embarking on a sensory treatment approach. Allergies and GERD are the 2 most common conditions that contribute to throat sensitivity. Esophageal dysmotility and achalasia can also create referred discomfort in the throat and result in feeding aversion.
If these variables have been eliminated or there is a known condition associated with hypersensi­tivity syndromes, such as ASD, familiarization and desensitization regimens tend to be effective. Reas­surance that the swallowing mechanism is intact and safe is a healthy starting point for treatment. Asking children what they feel when trying target foods or beverages helps clarify where to start treat­ment. It also breeds an atmosphere of collaboration that they are likely to find inherently motivating.
Swallowing Safety With Intellectual Impairment
Clinical scenarios may arise where objective test­ing and meal tolerance at home are in conflict. An
278 CLINICAL MANAGEMENT OF SWALLOWING DISORDERS
older child or adolescent with cognitive limitations could require vigilant meal supervision to circum­vent swallowing patterns that are unsafe. Consider nonverbal children with severe intellectual deficits whose only pleasure is eating. They may exhibit impulsive behavior such as eating solids too rapidly without properly chewing. Pacing techniques using bite sip bite sip may be a simple cadence to implement that reduces the likelihood of chok­ing. Smaller utensils and cutting food in advance are other external means of keeping the child on the least-restrictive diet. If children do not exhibit texture preference and they are ultimately less likely to aspirate with a diet downgrade, such as IDDSI 0 and 7 to IDDSI 2 and 3, this could be a feasible strategy to keep them safe at meals. It may also be a technique that does not require such intensive supervision. Each family will present with nuanced concerns that can be addressed with creative inter­ventions. Consider intellectual status when per­forming instrumental swallowing exams. Some may tolerate FEES without difficulty, while others may require a fluoroscopic study for better cooperation as swallowing strategies are trialed.
chewing. Creating a plan where they can transition from sandwiches, meats, hard vegetables, and fruits to densely nutritious smoothies may be a simple modification that encourages better intake.
Taking a survey of typical 24-hour meals and beverages is an important aspect of the evaluation to pinpoint where the deficits arise. Meal obser­vation will illuminate unusual behaviors that may underpin inadequate intake. Mental-health disor­ders can overlap in this domain, such as in the case of anorexia, where a child is purposefully avoiding calories. Locating behavioral medicine providers with eating disorders expertise is helpful to discuss cases and send referrals. For young nonverbal chil­dren or infants, poor growth can be attributed to inadequate feeding patterns. An example is illus­trated in the box below. While most growth faltering due to insufficient calories is unintentional on the caregiver’s part and can be remedied by reconstruct­ing feeding schedules, there can be sinister etiolo­gies. Growth faltering may be a sign of child neglect and abuse. Discuss unsettling caregiver interactions or comments made by children with the medical team to see if there are red flags in other domains of their care.

GROWTH FALTERING

Formerly termed “failure to thrive,” growth faltering is when a child does not meet anticipated weight milestones. The most common cause of this phe­nomenon is inadequate intake. such as a syndrome or dysphagia complicate nutri­tion. Clinicians may encounter referrals with a pri­mary diagnosis of growth faltering. Physicians are seeking to rule out dysphagia and disruptive meal­time patterns that restrict intake. Oral-motor exam, meal observation, and potential instrumental swal­lowing evaluations are advised in these cases.
Sometimes children decline nutrition because they recognize that eating is difficult. This could span from subtle weakness to inflammatory con­ditions that create discomfort when they swallow. Interventions may involve altering textures so calo­ries can be consumed with reduced effort. Children with oral-motor weakness, for example, would have an easier time gaining weight if the mainstay of their food did not involve solids that required excessive
36
Organic disease
Case Vignette
A 4-month-old exclusively breastfed infant is referred for poor weight gain. This is a healthy term girl with no concerning medical conditions aside from a progressive decline in her growth curve. It was first observed at her 2-month well-child visit. Survey of breastfeeding revealed that the parent successfully nursed her first child for 18 months. No supplementation was required, and the parent recalled having a plentiful milk supply. Feeding patterns of the 4-month-old girl were as follows: 0600, 0900, 1200, 1500, 1800. The baby latches to both breasts each feeding, and she receives no other intake. The mother indicated she is following a parenting blog that advises scheduled feeds and sleep training advice that sees parents avoiding nighttime nursing. Weighted feed during the office consul­tation revealed 3-ounce intake between both breasts. Counseling was provided to the
12. TREATMENT OF FEEDING AND SWALLOWING DISORDERS IN INFANTS AND CHILDREN 279
family that their daughter needs 25 to 30ounces in 24hours to maintain her growth curve. They were advised to offer each breast multiple times in 1feed and create more opportunities during the day when their daughter can nurse, including cluster feeding. This advice resulted in normal­ized growth patterns within the ensuing month. The family also indicated that occasionally when their daughter would awaken at night, they offered breastfeeding instead of soothing her back to sleep.
Figure 12–4 provides nutrition requirements
per the American Heart Association.
37

NONORAL FEEDING

An infant or child may arrive at a consultation with a nasogastric (NG) or percutaneous endoscopic gastronomy (PEG) feeding tube. When placed through the nose, dysphagia is predicted to be a temporary problem that could resolve with interven­tion. It may also be a means of gradually reorienting a child to oral intake following major surgery or trauma recovery. Chart review is critical to under­stand the collective direction of a child’s medical team. There could be indications to purposefully withhold oral nutrition or hydration. Seek clearance for trials of various textures before administering them. A conservative approach begins with observa­tion of secretion management, performing an oral mechanism examination, assessing overall develop­mental function, and offering very small amounts of liquids or solids when deemed safe. If the child appears to be a good candidate for rehabilitation and a clinician anticipates modest intake would be tolerated for a fluoroscopic or endoscopic swallow­ing exam, this is the advisable platform to develop therapy goals.
When children arrive with a PEG, their dys­phagia is typically more severe, and they may have a less optimistic prognosis. Children’s ability to actively participate in care, family support, and over­all medical condition are indicators of potential oral tolerance. When a child is PEG dependent due to
profound dysphagia, secretion management is the first step toward oral intake. Until secretions are managed and there is reasonable assumption that trials of liquids or solids would be at least partially tolerated, an instrumental exam is unlikely to be helpful. Working with a child to cough and sponta­neously swallow saliva are necessary cursory skills. This starts with families identifying airway conges­tion and mobilizing mucus by coughing. A goal may be to avoid use of the suction device for a defined period of time. Drooling could also accompany their feeding and swallowing profile. Working on lip clo­sure and spontaneous swallowing are strategies to reduce sialorrhea.
Children with feeding tubes will have inter­acted with a registered dietician who prescribed their formulas and water intake. When a child is ready to initiate an oral gratification or a partly oral diet, coordinate care to calculate what is consumed by mouth versus tube. Timing of early supervised meals may be best delivered when the child is motivated by hunger. With permission of the refer­ring physician, avoiding tube use prior to therapy appointments could enhance their performance. As a child is increasingly safe for oral nutrition, hydra­tion, and oral medications, begin planning for NG or PEG removal. Providers vary in their preferences for when this is withdrawn. Typically, the tube needs to be flushed with water daily even if not in use so it does not become clogged. Based on the mutu­ally set criteria, tubes may be removed once a child proves continued positive growth over a defined period of time without pulmonary deterioration due to aspiration.
280 CLINICAL MANAGEMENT OF SWALLOWING DISORDERS
FIGURE 12–4. Nutrition requirements per the American Heart Association.37
continues
12. TREATMENT OF FEEDING AND SWALLOWING DISORDERS IN INFANTS AND CHILDREN 281
FIGURE 12–4. continued