70

Neonatal Gastrointestinal problems

Embed Size (px)

Citation preview

Prof. Mohamed El Kalioby

Prof. of Pediatrics & Neonatology

Suez Canal University

COMMON NEONATAL

GASRTINTESTINAL PROBLEMS

ITEMSITEMS• Vomiting• Constipation• Diarrhea• Abdominal Colic• NEC • Congenital Anomalies

Cleft lip / palateTEFCHPSAtresia

[email protected]

NEONATAL VOMITINGNEONATAL VOMITING

NEONATAL VOMITINGNEONATAL VOMITING

Vomiting or, more often, regurgitation is a relatively frequent symptom during the neonatal period.

[email protected]

NEONATAL VOMITINGNEONATAL VOMITING

In the first few hours after birth, infants may vomit mucus, occasionally blood streaked. This vomiting rarely persists after the first few feedings.

It may be due to irritation of the gastric mucosa by material swallowed during delivery.

If the vomiting is protracted, gastric lavage with physiologic saline solution may relieve it

[email protected]

NEONATAL VOMITINGNEONATAL VOMITING

Many babies vomit at some time.

In most cases this is unimportant and unlikely to be clinically significant.

Small, frequent vomits are referred to as ‘posits’.

[email protected]

NEONATAL VOMITINGNEONATAL VOMITING

• Spitting up (About 40%)Not forceful. Small volumes (< 5-10 mL) during or shortly

after feeding, often when being burped.Typically caused by rapid/overfeeding and air

swallowing.Gentle patting on the infant's back should be all

that is required during a spitting up episode.

[email protected]

NEONATAL VOMITINGNEONATAL VOMITING

• Infant regurgitation

Vomiting ≥ 2 times/day for at least 3 weeks in the first 1-12 months of life in an otherwise healthy infant.

Often transient in nature and due to immature gastrointestinal tract (GER).

[email protected]

NEONATAL VOMITINGNEONATAL VOMITING

Management of Infant regurgitationReassurance is the only treatment needed.Conservative measures:

Upright positioning after feeding,

Elevating the head of the bed?Domperidone:

Dose: (0.25–0.5 mg/kg/dose (3-4 times/day. Maximum 2.4 mg/kg/d or 80 mg/ d).

[email protected]

NEONATAL VOMITINGNEONATAL VOMITING

WarningWarning• Vomit contains blood (red or black)

(Colour depends upon how long blood has been in the stomach)• Vomit is bile (green, not yellow)• Vomiting is projectile• Baby is unwell• Baby is failing to thrive• Baby has GER (could be aspirating)• Associated diarrhea• Abdomen is distended

[email protected]

NEONATAL VOMITINGNEONATAL VOMITING

[email protected]

Vomiting occurs shortly after birth and persistent:Intestinal obstruction, Metabolic disorders, and ?Increased intracranial pressure.

A history of maternal hydramnios suggests upper gastrointestinal (esophageal, duodenal, ileal) atresia. Bile-stained emesis suggests intestinal obstruction beyond the duodenum.

NEONATAL VOMITINGNEONATAL VOMITING

Abdominal roentgenograms:air-fluid levels, distended bowel loops, characteristic patterns of obstruction (double bubble: duodenal atresia), and pneumoperitoneum (intestinal perforation).

[email protected]

air-fluid levels

NEONATAL VOMITINGNEONATAL VOMITING

[email protected]

Double bobble shadow

Distended bowel loops

NEONATAL VOMITINGNEONATAL VOMITING

Pneumoperitoneum (intestinal perforation). [email protected]

NEONATAL VOMITINGNEONATAL VOMITING

• A barium swallow roentgenogram with small bowel follow-through is indicated in the presence of bilious emesis.

• Ultrasonography (CHPS)

[email protected]

NEONATAL VOMITINGNEONATAL VOMITING

A 7 day old baby, born at term, presented to the neonatal unit with a history of vomiting with each feed and 20% weight loss (birth weight 3270 g). Vomiting started soon after birth and it was described by the parents as being projectile; it occurred during or after feeds and was non-bilious. The baby was dehydrated on admission (dry skin and mucous membranes), but was otherwise well. Clinical examination was otherwise unremarkable including no visible peristalsis and no masses palpable. The parents interacted appropriately with the baby and there were no causes for concern among the nursing or medical staff. Initial capillary blood gas analysis showed a metabolic alkalosis.

[email protected]

NEONATAL VOMITINGNEONATAL VOMITING

What is the main diagnosis to exclude?

Hypertrophic pyloric stenosis: ABG classically shows hypochloraemic hypokalaemic metabolic alkalosis.

[email protected]

NEONATAL VOMITINGNEONATAL VOMITING

What investigations would you perform to diagnose this?

Ultrasound scanning:non-invasive, does not use radiation, and can differentiate between several diagnoses (hypertrophic pyloric stenosis, gastro-oesophageal reflux disease, and duodenal anomalies).

[email protected]

NEONATAL VOMITINGNEONATAL VOMITING

[email protected]

NEONATAL NEONATAL CONSTIPATIONCONSTIPATION

Normal bowel habitsFirst bowel movement: within 36 h of birth (later in preterm).90 % of normal newborns pass meconium within 24 h.

During the first week of life: approximately four soft or liquid bowel movements per day (generally more in breast- compared with bottle-fed infants).

During the first three months of life: breastfed infants have about three soft bowel movements per day. Some breastfed infants have a bowel movement after each feeding, whereas others have only one bowel movement per week.

[email protected]

DEFINITIONDefinition of constipation is relative and depends on:•stool consistency, •stool frequency, and •difficulty in passing the stool.

“a delay or difficulty in defecation, present for two or more weeks, sufficient to cause significant distress to the patient”

[email protected]

A normal child may have a soft stool only every 2 or 3 days without difficulty; this is not constipation.

However, a hard stool passed with difficulty every 3rd day should be treated as constipation.

[email protected]

Constipation is common and varies considerably in its severity

The clinician has an important role in identifying the small fraction of children with organic causes of constipation.

[email protected]

ETIOLOGYConstipation may arise from:

[email protected]

I. defects in filling the rectum

II. defects in emptying the rectum or

colonic stasis

excessive drying of stool

failure to initiate reflexes from the rectum

Weak defecation reflex initiated by pressure receptors in the rectal muscle

ETIOLOGY

I. Defective rectal filling (colonic peristalsis is ineffective):hypothyroidism or opiate use and when bowel obstruction (by a structural anomaly or by Hirschsprung disease).

[email protected]

ETIOLOGY

II. Defective emptying the rectum: lesions involving rectal muscles, lesions of sacral spinal cord afferent and efferent fibers, or lesions affecting muscles of the abdomen and pelvic floor. Disorders of anal sphincter relaxation may also contribute to fecal retention

[email protected]

ETIOLOGY

Most children with constipation do not have an underlying medical problem.

[email protected]

WarningWarning Don’t pass meconium after 36 h. Dietetic Causes: Underfeeding /

Cow's milk intolerance. Associating vomiting.

MANAGEMENTBreast FeedingInfants who breastfeed are rarely constipated Glycerin suppositories or rectal stimulation with a lubricated rectal thermometer can be used occasionally if there is very hard stool in the rectum. These interventions should not be used frequently because tolerance may develop; in addition, glycerin may irritate the anus or rectal mucosa.

[email protected]

NEONATAL DIARRHEANEONATAL DIARRHEA

DEFINITION

WHO: passage of three or more loose or watery stools per day.

Nevertheless, absolute limits of normalcy are difficult to define; any deviation from the child's usual pattern should arouse some concern

[email protected]

[email protected]

Ill appearance, Dehydration, Passage of blood or

mucus, regardless of the actual

number of stools or their water content.

NEONATAL COLICNEONATAL COLIC

Colic is commonly described as a behavioral syndrome in neonates and infants that is characterized by excessive, paroxysmal crying. Colic is most likely to occur in the evenings, and it occurs without any identifiable cause.

Possible other causes of excessive crying (eg, having hair in the eye, strangulated hernia, otitis, sepsis); colic remains a diagnosis of exclusion.

[email protected]

ETIOLOGYGastrointestinal causes (eg, GERD, over- or

underfeeding, milk protein allergy, early introduction of solids)

Inexperienced parents (controversial) or incomplete or no burping after feeding

Exposure to cigarette smoke and its metabolites

Food allergyLow birth weightCharacteristic intestinal microflora

[email protected]

ETIOLOGY

Weight loss, Difficult or painful

swallowing, Significant vomiting,Chronic severe diarrhea,Blood in stool Unexplained fever, Urinary symptoms

[email protected]

MANAGEMENT

Rule out common causes of cryingRecommend that the parents not exhaust

themselves, and encourage them to consider leaving their baby with other caretakers for short respites

Consistent follow-up and a sympathetic physician are the cornerstones of management

[email protected]

MANAGEMENT 2

Drug treatment generally has no place in management of colic unless GERD appears likely.

?Anticholinergic agents: effective but has rare serious adverse effects and cannot be recommended.

[email protected]

MANAGEMENT 3

Various benign but unproven treatment modalities are available, including the following:Maternal low-allergen diet (ie, low in dairy, soy, egg, peanut, wheat, shell fish) may offer relief from excessive crying in some infants. Lactobacillus reuteri (Probiotics)SimethiconeOral hypertonic glucoseNutritional supplements and other complementary medicines

[email protected]

Necrotizing Enterocolitis

(NEC)

Necrotizing Enterocolitis 1

Risk Factors:•Premature infants•Feeding of concentrated formulas•GIT infections•Polycythemia, CHD

[email protected]

Necrotizing Enterocolitis 2

C/P•Nonspecific •History of formula feeding•Vomiting, diarrhea, feeding intolerance and high gastric residuals following feedings. •More specific: abdominal distention and frank or occult blood in the stools

[email protected]

Necrotizing Enterocolitis 3

C/P (Cont)GI signs: any or all of the following:•Increased abdominal girth•Visible intestinal loops•Obvious abdominal distention and decreased bowel sounds•Change in stool pattern•Hematochezia•Palpable abdominal mass•Erythema of the abdominal wall

Systemic signs: any of the following:•Respiratory failure•Decreased peripheral perfusion•Circulatory [email protected]

Necrotizing Enterocolitis 4

Management:•NPO•Nasogastric tube to decompress gas•IV fluid•Antibiotics•Extra oxygen•Abdominal x-rays to monitor progress•Measure abdominal girth every four hours

[email protected]

CONGENITAL ANOMALIESCONGENITAL ANOMALIES

Cleft Lip and PalateCleft Lip and Palate

Incomplete Cleft Palate

Unilateral Complete cleft lip & Palate

Bilateral Complete cleft lip & Palate

[email protected]

Treatment

Plasticsurgery.org

Isolated Cleft lip

[email protected]

Treatment 2

Goals of surgery:Close the defectCosmetic: Symmetrical appearance of face

Timing of surgery:2 to 3 months

[email protected]

Z-plasty is the most commonly used technique

Treatment 3

[email protected]

Treatment 4

[email protected]

Treatment 5

Pre Surgery CareConstruction of a plastic obturator to assist in feedings.Use of soft artificial nipples with large openings, a squeezable bottle, and proper instruction

[email protected]

Treatment 6

Post Surgery Care Airway managementPain control Position in infant seat – upright positionElbow restraintsWound careMinimizing cryingFeeding techniques

[email protected]

Treatment 7

Cleft Palate RepairGoals of surgery:Union of the cleft segments, Intelligible and pleasant speech,Reduction of nasal regurgitation, and Avoidance of injury to the growing maxilla.

[email protected]

Treatment 8

Timing of Surgery:Variable according to:size, shape, and degree of deformity.adequacy of the existing palatal segments, morphology of the surrounding areas (e.g., width of the oropharynx), neuromuscular function of soft palate and pharyngeal walls.

Ideally: before 1 yr of age to enhance normal speech development. Babies should be weaned from bottle or breast.When surgical correction is delayed beyond 3rd yr, the child develop intelligible speech.

[email protected]

Treatment 9 Palate Repair

Pre-surgery feedingAlternate nipple design

Breast feeding consultant

ESSREnlarge / stimulate / swallow / rest

[email protected]

Treatment 12

Post Surgery CarePosition on sideNPO for 48 hoursSuction with bulb syringe onlyAvoid injury to palate with syringes, straws, cups etc.

[email protected]

EA & TEF

[email protected]

Esophagus ends in a blind pouch.

Failure of the esophagus to recanalize between 4th & 6th W of development.

ES & TEF 2

[email protected]

Type A – Esophageal atresia without tracheoesophageal fistula (8-10 %)Type B – Esophageal atresia with proximal tracheoesophageal fistula (<1 percent)Type C – Esophageal atresia with distal tracheoesophageal fistula (85-87 %)Type D – Esophageal atresia with tracheoesophageal fistula to both the proximal and distal esophageal segments (<1 percent)Type E – Tracheoesophageal fistula with no esophageal atresia (4 %)

ES & TEF 3

Symptoms and Signs: Excessive salivation / frothy mucus Respiratory Distress Inability to pass NG tube (Except ?) Choking and coughing on feeding (The

rationale for giving sterile water for the first feed).

Diagnosis: – Clinical– CXR

[email protected]

ES & TEF 4

[email protected]

X-ray Findings

[email protected]