The Newborn Foot Examination

One of the most common questions asked by new parents concerns their newborn's feet. "Is this normal?" is an appropriate question to ask when a body part on your child doesn't quite look right. 

Though changes in the angles of the feet are typically normal, it is imperative that the pediatrician rules out conditions that require closer observation and management. Here is the "differential diagnosis" for oddly shaped baby feet:

Metatarsus Adductus

The "forefoot" or front part of the foot is turned in (adducted) toward the center, while the middle and hint foot portions are normal. Typically caused by "intrauterine molding", or the way the baby was positioned in the womb. The physician will perform a quick test to be sure the forefoot can be moved to midline without resistance. If the feet are too rigid, a referral to a pediatric orthopedist is warranted. There, the feet may be placed in special "reverselast" shoes and reevaluated in 6 weeks. If this does not fix the problem, serial lower leg casting may be required. The last step would be surgery, which isn't done until 4 years of age. 

Talipes Equinovarus (clubfoot)

The whole foot is adducted. As with above, a quick test for rigidity is performed. If correctable, it is referred to as "positional clubfoot" and is simply observed over time. The more serious diagnosis is congenital clubfoot, which occurs in 1 out of every 1,000 births. Congenital clubfoot requires x-ray imaging, referral to pediatric orthopedics and treatment with special casting referred to as the "Ponseti method". Surgery may be required between ages 3-12 months. 

 

Pes Planus (flat foot)

The lack of an identifiable arch in the foot. This is quite common, seen in approximately 1 in every 4 children. This condition is simply observed over time, since arches typically develop by age 10. If the child complains of pain in the feet as they get older, they may require stretching exercises or special shoes. 

Congenital Vertical Talus (rocker bottom foot)

Rocker bottom feet are characterized by elevated, dislocated, midfeet. The condition is typically associated with genetic syndromes or single gene deletions. Referral is made to pediatric orthopedics. 

Protect Your Baby From Bronchiolitis

Bronchiolitis is a relatively common respiratory condition seen in children younger than 2 years old.  According to a recent study out of Finland published in the Scandanavian journal Acta Paediatrica, bronchiolitis is a major cause of lower respiratory tract illness and hospitalization in babies, especially those younger than 6 months old. The condition is mostly caused by the respiratory syncytial virus (RSV), which is the infectious agent in over 75% of cases.  Other viruses, including influenza (flu) and adenovirus represent the remaining 25% and in many cases exist as co-infections.

RSV season typically begins in October and ends in April.  The virus is spread via the hands of caregivers and other inanimate surfaces (fomites), and can stay alive on them for several hours. The virus enters the respiratory tract and infiltrates the top cell layer of the lungs, known as bronchiolar epithelium, causing inflammation and swelling and obstructing the small airways. Once this happens, air passing through these small spaces emits a whistle-like sound that can be heard as a wheeze outside of the body.

This wheeze, along with a runny nose (rhinitis), cough, and fever, is suggestive of  RSV bronchiolitis. It is important, however, for the pediatrician to rule out other disease processes, such as pneumonia or foreign body aspiration. Studies have shown that infants <12 weeks old, particularly those who were premature at birth, have an increased risk of requiring hospitalization and medical intervention. For many babies, though, this disease is self-limiting and no tests or treatments are necessary.

There are established risk factors for RSV that you can’t avoid; childcare attendance, school aged siblings, prematurity, congenital cardiopulmonary disease and immunodeficiency. But the steps listed below have been shown to reduce the risk of spreading RSV:

• When in a group setting such as daycare or doctors offices, be sure that you and others caring for your children decontaminate their hands with alcohol-based sanitizer before and after direct contact with children or inanimate objects

• Do not smoke tobacco or wear clothing that has been around cigarette smoke unless it has been thoroughly washed

• Avoid exposing your infant to air pollutants

• Always breastfeed your infant whenever possible to allow your infant's immune system to strengthen

• Always follow current vaccination guidelines, including the flu vaccine

References

Bronchiolitis. Dynamed Database. Updated 2014 May 12 02:17:00 PM. Accessed June 6 2014. 

Pruikkonen H1, Uhari M, Dunder T, Pokka T, Renko M. Infants Under Six Months With Bronchiolitis Are Most Likely To Need Major Medical Interventions In The Five Days After Onset. Acta Paediatr. 2014 [Epub ahead of print]

Preterm infant mortality falling, prevalence of cerebral palsy rising

A recent study by Vincer et al published in the Journal of Pediatrics and Child Health reported on the rates of preterm infant mortality and cerebral palsy (CP) over the last 20 years. They found that the birth prevalence of CP among very preterm infants (less than 31 weeks) is on the rise, but the reasons are unclear.

CP is a permanent condition caused by damage to motor control centers in the brain before or shortly after birth, resulting in non-progressive impaired movement and permanent physical disability. The affected child typically has problems with uncontrolled spastic movements and/or impaired coordination of movement. Some cases are associated with epilepsy, poor cognition and/or difficulty with communication.

Between 1988 and 2007, very preterm infant mortality steadily declined while CP has been on the upswing. Vincer et al notes that maternal risk factors, anemia and tocolytic use have all been on the rise as well. Whether or not these represent a correlation has yet to be determined.

Reference

Vincer MJ, Allen AC, Allen VM, Baskett TF, O’Connell CM. Trends in the prevalence of cerebral palsy among very preterm infants (<31 weeks’ gestational age). Paediatr Child Health. 2014; 19(4):185-9.

The Latest Nutrition Recommendations for Your Infant or Child

Good nutrition during the developing years of life has been correlated with improved growth, body height, IQ, educational achievement and hourly wage. Are you familiar with the current guidelines for infants, adolescents and teens?

Age 0-4 months. Breast feeding only, either directly from breast or expressed via pump. Supplement with Vitamin D 400 IU/Day (800 in winter). If mother cannot breast feed, iron-fortified infant formula is recommended. Do not offer juices, water, nonhuman milk or foods.

• If family history of allergy or atopic dermatitis, using breast milk or hypoallergenic hydrolyzed (casein or 100% whey protein) infant formulas instead of cow’s milk formulas may reduce the risk in the child.
• If infant was preterm or small for gestational age (SGA), nutrient-enriched and soy formulas are not recommended.
• Many formulas boast the addition of probiotics and long chain polyunsaturated fatty acids (LCPUFA) to their products, but there is no evidence that these are beneficial to the infant.

Age 4-6 months. Begin to introduce single grain, iron-fortified cereal (1 tbsp cereal mixed with 4tbsp breast milk, gradually increase the amount of cereal over time). Never put cereal in a bottle! Sit child upright and feed to them with a spoon.

Cues that an infant is ready for solid foods include:

• Doubled birth weight
• Ability to sit up without support with control of head and neck
• Infant shows interest in foods parents are eating

Age 6-8 months. Once all cereals have been tried, continue breast milk while gradually adding solids. Begin introducing 1-2 tbsp of both fruits and vegetables, strained, twice daily and increase to 2-3 tbsp. Try baby fruit juice in a cup and offer finely chopped or mashed fruits and cooked vegetables once all strained varieties have been tried. Introduce 1 food each week to determine which foods are poorly tolerated. Start with single ingredient baby foods before introducing mixed ones. Limit 1 serving per day of carrots, beets and spinach (may cause methemoglobinemia) and never feed them honey.

Age 8-12 months. Introduce finger foods in cups and encourage self-feeding (allow baby to get messy).  Begin to add finely chopped meats, one per week. Avoid sweetened beverages and foods that may get stuck in the throat (nuts, raw carrots, round candies, hot dogs, apple pieces, grapes and chips). Introduce no more than 4 ounces of unsweetened 100% fruit juice a day. Be sure to sit child up straight in high chair while eating, and always taste heated foods before serving. Do not restrict fat intake unless directed to do so by pediatrician.

Age 12-24 months. Add whole milk and eggs. Offer small portions. Never force toddler to eat. Continue to offer foods that have been rejected! Bedtime bottles are recommended. Transition to reduced fat (2% or fat-free) unflavored cow’s milk. Continue unsweetened 100% fruit juice and water. Limit sodium, sugar-sweetened beverages, saturated and trans fat intake. Encourage fruits, vegetables and whole grains and always offer water.

Age 2-21 years.  Primary beverage should be fat-free unflavored milk. Encourage healthy eating habits starting at age 11, stressing daily breakfast, limited fast food and eating meals as a family. Continue to limit sodium, sugar-sweetened beverages, saturated and trans fat intake. Encourage fruits, vegetables and whole grains.

• It is important not to overfeed your child. This has been associated with higher fat mass in children, insulin sensitivity (risk of diabetes) and childhood obesity.

References

Nutrition (pediatric and preventive care). In DynaMed [database online]. EBSCO Information Services. http://web.a.ebscohost.com.ezproxy.hsc.usf.edu/dynamed/detail?vid=3&sid=7ebdc599-239e-4629-b0ad-740dd1944370%40sessionmgr4005&hid=4107&bdata=JnNpdGU9ZHluYW1lZC1saXZlJnNjb3BlPXNpdGU%3d#db=dme&AN=115435.

Updated May 02, 2014. Accessed May 6, 2014.