IntussusceptionMANAGEMENT

PEDIATRIC-SPECIFIC PRESENTATIONS · 12 SECTIONS

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448 items

☷ Legend

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Cardiovascular Presentations66▾

Respiratory Presentations47▾

Neurological Presentations77▾

Gastrointestinal Presentations63▾

Genitourinary and Reproductive Presentations44▾

Infectious Disease Presentations146▾

Trauma Presentations88▾

Toxicologic Presentations67▾

Psychiatric Presentations25▾

Musculoskeletal and Rheumatologic Presentations89▾

Dermatology Presentations21▾

Environmental and Exposure Presentations26▾

Hematologic and Oncologic Presentations30▾

Pediatric-Specific Presentations13▾

Bronchiolitis Croup Emergency delivery Febrile seizure Intussusception Kawasaki disease Neonatal jaundice Neonatal sepsis Nursemaid's elbow Pediatric fever 0 to 28 days Pediatric fever 29 to 60 days Pediatric fever 61 to 90 days Pyloric stenosis

Endocrine and Metabolic Presentations42▾

ENT and Maxillofacial Presentations21▾

Ophthalmologic Presentations15▾

Obstetric Presentations17▾

Systemic and Miscellaneous Presentations15▾

01Approach to the Critical Patient/attcp48

Immediate priorities

›High-risk states

›Shock

›Hypotension for age

›Altered mental status

›Peritonitis

›Guarding

›Rebound tenderness

›Suspected perforation

›Free air concern

›Toxic appearance

›Resuscitation bundle

›Airway and breathing

›Oxygen for hypoxemia

›Bag valve mask support if tiring

›Circulation

›IV or IO access

›Isotonic crystalloid bolus 20 mL/kg

›Repeat bolus for persistent hypoperfusion

›NPO status

›NPO for suspected intussusception

›Maintenance IV fluids if prolonged NPO

›Early consultation triggers

›Pediatric surgery or general surgery

›Radiology for enema reduction capability

›Time-critical decisions

›If peritonitis or perforation

›Avoid enema reduction

›Immediate surgical pathway

›If stable without peritonitis

›Ultrasound first-line

›Image-guided enema reduction pathway

Monitoring and escalation

›Monitoring

›Continuous pulse oximetry

›Target SpO2 94% or higher

›Cardiac monitor

›Persistent tachycardia as hypovolemia marker

›Blood pressure cycling

›Age-based hypotension thresholds

›Escalation criteria

›Rising lactate mmol/L

›Ischemia concern

›Earlier operative planning

›Worsening abdominal exam

›Repeat focused exam after analgesia

›Stop nonoperative pathway

›Recurrent severe pain after successful reduction

›Recurrence concern

›Repeat ultrasound pathway

02History/hx43

Presentation patterns

›Classic symptom cluster

›Intermittent colicky abdominal pain

›Pain free intervals

›Episodic inconsolable crying in infants

›Vomiting

›Nonbilious early

›Bilious with obstruction progression

›Lethargy episodes

›Pallor

›Somnolence as primary complaint

›Bloody stool

›Currant jelly stool late finding

›Occult blood possible

›Atypical presentations

›Isolated lethargy

›Minimal abdominal findings early

›Mislabeling as sepsis risk

›Diarrhea early

›Gastroenteritis mimic

›Blood may appear later

›Older child or adult

›Higher lead point probability

›Subacute or chronic symptoms

Risk factors and lead points

›Age and seasonality

›Peak age 6 to 36 months

›Highest incidence 6 to 24 months

›Rare younger than 3 months

›Viral prodrome

›Recent URI symptoms

›Mesenteric lymphoid hyperplasia association

›Pathologic lead point clues

›Age over 2 years

›Meckel diverticulum risk

›Polyp risk

›Recurrent intussusception history

›Lead point evaluation consideration

›Prior successful enema reduction

›Henoch Schonlein purpura history

›Small bowel involvement risk

›Recurrence risk

›Known lymphoma

›Lead point likelihood

›Weight loss and night sweats context

03Physical Exam/exam33

Abdominal and systemic exam

›General appearance

›Toxic appearance

›Sepsis physiology

›Perforation concern

›Lethargy

›Episodic

›Poor perfusion correlation

›Abdominal exam

›Tenderness pattern

›Intermittent

›Progression to constant

›Palpable sausage shaped mass

›Right upper quadrant common

›Epigastric mass possible

›Distention

›Obstruction severity marker

›Dehydration association

›Guarding or rebound

›Peritonitis marker

›Contraindication to enema reduction

›Rectal and skin

›Gross blood or mucus

›Late sign

›Not required for diagnosis

›Purpura

›HSP association

›Small bowel lead point risk

PITFALLS

›Normal exam between pain episodes

›Reassessment during pain episode

›Low threshold for ultrasound

›Analgesia avoidance

›Adequate analgesia improves exam reliability

›Avoid delayed diagnosis due to pain undertreatment

04Differential Diagnosis/ddx30

Life threatening and common mimics

›Pediatric surgical abdomen

›Appendicitis (ICD-10 K35.80)

›RLQ focal tenderness

›Persistent pain without complete intervals

›Malrotation with midgut volvulus (ICD-10 Q43.3)

›Bilious vomiting early

›Rapid deterioration

›Incarcerated hernia (ICD-10 K40.30)

›Groin mass

›Localized tenderness

›Necrotizing enterocolitis in neonate (ICD-10 P77.9)

›Prematurity

›Pneumatosis concern

›Medical mimics

›Gastroenteritis (ICD-10 A09)

›Prominent diarrhea

›Diffuse cramping

›Constipation (ICD-10 K59.00)

›Stool burden history

›Chronic pattern

›Testicular torsion (ICD-10 N44.00)

›Abdominal pain in young boy

›Abnormal testicular position

›Adult causes of bowel obstruction

›Adhesive SBO (ICD-10 K56.50)

›Prior surgery history

›Diffuse distention

›Malignancy related obstruction (ICD-10 C18.9)

›Weight loss

›Occult bleeding

05Laboratory Tests/lt30

Core labs and indications

›Dehydration and metabolic impact

›Electrolytes

›Sodium mmol/L

›Potassium mmol/L

›Glucose mmol/L

›Hypoglycemia with poor intake

›Stress hyperglycemia context

›Ischemia and sepsis screening

›Venous blood gas

›Lactate mmol/L

›pH

›Complete blood count

›Leukocytosis support for inflammation

›Anemia with GI bleeding concern

›Blood culture if toxic

›Fever

›Shock physiology

›Pre-procedure and operative readiness

›Type and screen

›Planned OR

›Hemodynamic instability

›Coagulation studies

›Known bleeding disorder

›Anticoagulant exposure in adult

Interpretation pitfalls

›Normal labs do not exclude intussusception

›Early disease without ischemia

›Intermittent symptoms

›Elevated lactate

›Late marker

›Ischemia or shock correlation

06Diagnostic Tests/dt48

Scoring Systems

›Clinical risk pattern recognition

›High suspicion pattern

›Episodic severe pain

›Vomiting without diarrhea

›Lead point probability pattern

›Age over 2 years

›Recurrent episodes

›Failed enema reduction predictors

›Symptom duration over 24 hours

›Dehydration or shock physiology

MRI

›Limited role in acute pediatric evaluation

›Availability constraints

›Time to scan

›Sedation needs

›Radiation avoidance context

›Alternative when ultrasound nondiagnostic and CT undesirable

›Usually not appropriate in suspected intussusception pathways

›Adult evaluation standard

›CT abdomen and pelvis with IV contrast

›Lead point detection

›Ischemia and perforation assessment

›Transient small bowel intussusception recognition

›Short segment

›No obstruction

›Pediatric selective use

›Nondiagnostic ultrasound with persistent concern

›Alternative diagnosis evaluation

›Complication evaluation

Ultrasound

›Primary diagnostic modality in children

›Diagnostic performance

›High sensitivity and specificity in experienced hands

›Bedside POCUS can expedite diagnosis

›Key sonographic findings

›Target sign

›Pseudokidney sign

›Complication findings

›Free fluid

›Absent bowel wall perfusion concern

›POCUS workflow

›Quadrant sweep technique

›RUQ

›RLQ

›If POCUS positive

›Surgical consult

›Radiology confirmation or direct reduction pathway per local protocol

›If POCUS negative with ongoing high suspicion

›Radiology performed ultrasound

›Serial exams

07Disposition/dispo27

Site of care decisions

›Immediate admission or transfer

›Failed enema reduction

›Surgical management pathway

›Higher level pediatric center transfer if unavailable

›Peritonitis or perforation

›Operative management

›Broad spectrum antibiotics

›Hemodynamic instability

›PICU level monitoring

›Ongoing fluid or vasopressor needs

›Post reduction observation and discharge

›Observation criteria

›Stable vitals

›Pain controlled

›Discharge criteria

›Tolerating oral intake

›Reliable caregivers

›Return precautions emphasis

›Recurrence risk highest early

›Rapid return for recurrent symptoms

Follow-up planning

›Lead point evaluation triggers

›Age over 2 years

›Outpatient pediatric surgery or GI follow-up

›Consider Meckel evaluation pathway per specialist

›Multiple recurrences

›Advanced imaging or endoscopy planning

›Surgical exploration consideration

08Treatment/t72

Supportive care and symptom control

›Analgesia

›Acetaminophen PO 15 mg/kg

›Maximum 1000 mg

›Interval every 6 hours

›Ibuprofen PO 10 mg/kg

›Maximum 600 mg

›Interval every 6 to 8 hours

›Morphine IV 0.05 mg/kg

›Titration 0.02 mg/kg every 10 minutes for persistent pain

›Monitoring for respiratory depression

›Antiemetic

›Ondansetron ODT 0.15 mg/kg

›Maximum 8 mg

›Repeat once if vomiting persists

›Gastric decompression

›Nasogastric tube

›Persistent vomiting

›Marked distention

›Fluids

›Isotonic crystalloid bolus 20 mL/kg

›Repeat bolus for delayed capillary refill

›Maintenance fluids after resuscitation

Nonoperative reduction

›Image-guided enema reduction

›Candidate criteria

›Hemodynamic stability

›No peritonitis

›Contraindications

›Peritonitis

›Suspected perforation

›Pneumatic enema

›Air insufflation under fluoroscopy or ultrasound guidance

›Institutional pressure protocol

›Common maximum pressure 120 mmHg

›Stepwise pressure increases

›Hydrostatic enema

›Saline or contrast under imaging guidance

›Alternative when pneumatic unavailable

›Reduction success confirmation

›Reflux of air or contrast into terminal ileum

›Symptom resolution

›Recurrence management

›Repeat enema reduction

›Early recurrence common within 48 hours

›High success with repeat attempts in stable patients

Operative management

›Surgery indications

›Failed enema reduction

›Persistent intussusception

›Worsening clinical status

›Perforation

›Free air

›Generalized peritonitis

›Pathologic lead point suspicion

›Older child

›Adult intussusception

›Operative options

›Manual reduction

›Viable bowel

›No fixed lead point

›Resection

›Nonviable bowel

›Malignancy concern in adult

Antibiotics

›Antibiotics strategy

›No routine antibiotics for uncomplicated enema reduction

›Afebrile

›No peritonitis

›Broad spectrum coverage for perforation or operative pathway

›Ceftriaxone IV 50 mg/kg

›Maximum 2000 mg

›Interval every 24 hours

›Metronidazole IV 10 mg/kg

›Maximum 500 mg

›Interval every 8 hours

09Special Populations/sp27

Pregnancy

›Pregnancy considerations

›Rare presentation

›Broad differential

›Obstetric consultation early

›Imaging strategy

›Ultrasound first

›MRI as radiation sparing alternative when nondiagnostic

›Maternal instability

›Standard resuscitation priorities

›Early surgical involvement

Geriatric

›Older adult patterns

›Higher malignancy lead point likelihood

›CT evaluation priority

›Operative management common

›Medication risk

›Opioid sensitivity

›Renal dosing for antibiotics

Pediatrics

›Age specific issues

›Infants and toddlers highest incidence

›Intermittent crying episodes

›Lethargy as key clue

›Lead point probability increases with age

›Over 2 years evaluation consideration

›Over 5 years strong lead point concern

›Weight-based dosing

›Analgesia dosing per kg

›Fluid bolus 20 mL/kg

10Background/b35

Epidemiology

›Epidemiology snapshot

›Most common cause of intestinal obstruction in young children

›Peak age 6 to 24 months

›Male predominance

›Adult intussusception rare

›Pathologic lead point common

›Malignancy proportion higher than pediatrics

Pathophysiology

›Mechanism

›Telescoping of bowel segment into distal segment

›Venous congestion

›Bowel wall edema

›Progression

›Obstruction

›Ischemia

›Common pediatric type

›Ileocolic

›Ileocecal

›Lead points

›Pediatric common lead points

›Meckel diverticulum

›Lymphoma

›Adult common lead points

›Benign polyp

›Malignancy

Therapeutic Considerations

›Rationale for enema reduction

›Pressure reduction of telescoped segment

›Restores perfusion

›Avoids laparotomy when successful

›Pneumatic effectiveness

›High success rate in ileocolic disease

›Comparable safety to hydrostatic in large studies

›Recurrence biology

›Residual edema

›Early recurrence risk

›Repeat reduction often effective

11Patient Discharge Instructions/pdi30

copy discharge instructions

›Home care plan

›Normal activity as tolerated

›Rest after ED visit

›Avoid heavy exertion same day

›Fluids and diet

›Clear fluids initially

›Advance to regular diet as tolerated

›Return to ED immediately

›Recurrent severe belly pain

›Episodic crying

›Pain with pauses

›Recurrent vomiting

›Green or bilious vomiting

›Unable to keep fluids down

›Blood in stool

›Red blood

›Dark jelly-like stool

›Fever or worsening illness

›New fever

›Increasing sleepiness

›Signs of dehydration

›Very dry mouth

›No urine 8 hours

›Follow-up

›Primary care within 24 to 48 hours

›Recheck hydration

›Review recurrence symptoms

›Specialty follow-up if recommended

›Recurrent episodes

›Older age lead point evaluation

12References/r25

Guidelines and society resources

›Imaging and diagnosis

›ACR Appropriateness Criteria for suspected pediatric intussusception

›Ultrasound usually appropriate for initial imaging

›CT usually not appropriate for routine initial pediatric imaging

›ACEP Sonoguide intussusception

›Ultrasound consideration for pediatric clinical concern

›POCUS workflow support

›Management and outcomes

›BMJ Best Practice intussusception

›Enema reduction for stable patients without perforation concern

›Air reduction effectiveness

›UpToDate intussusception in children

›Early recurrence risk within 48 hours

›Repeat reduction strategy

›StatPearls adult intussusception

›Surgical management common due to lead point frequency

›Malignancy consideration

Evidence base

›POCUS diagnostic accuracy

›Systematic reviews and meta-analyses on POCUS accuracy for pediatric intussusception

›High sensitivity and specificity in trained operators

›Care streamlining and time-to-diagnosis reduction

›Enema reduction comparisons

›Systematic reviews comparing pneumatic and hydrostatic reduction

›Pneumatic reduction higher success in multiple analyses

›Similar safety profile

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Reviewed by SymptomDx Medical Team · Last reviewed June 16, 2026

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