PAEDIATRIC CASE RECORD
Case No: _____
RN of patient: Muhammad Adib Amal Bin Mohd Johari Name of Hospital: Hospital Sultanah Aminah Johor Bahru (HSAH)
Age: 5 years 9 months Sex: Male
Date of admission: 26/06/2026 Date of clerking: 26/06/2026
Date of Discharge: _____ Informant: Father (reliable historian)
Address: (residential area near river)
Presenting Complaints
- Pain and swelling over the right dorsum of hand following alleged snake bite at 15:50H today
History of Presenting Complaints
Muhammad Adib Amal is a 5-year-9-month-old boy who presented to the emergency department following an alleged snake bite to his right dorsum of hand at approximately 15:50H on 26/06/2026. The incident was witnessed by his elder sister.
Prior to the event, the child was playing near the water meter at the front of his house, which is situated in a residential area near a river. A snake emerged from under stones near the water meter and bit him on the right dorsum of the hand. The snake was subsequently struck by the father and brought to the hospital for identification. The snake has been identified as a Trimeresurus purpureomaculatus (Mangrove Pit Viper).
Immediately following the bite, the child sustained pain over the right dorsum of the hand, associated with localised swelling and minimal bleeding from two fang marks. His sister alerted the father, who rushed to the child. No tourniquet was applied, no sucking of the wound was attempted, and no massage was performed over the bite site. The father applied herbal leaves (daun bisa) over the bitten area and the child consumed water prepared from the leaves prior to hospital arrival.
On further systemic enquiry, there was no loss of consciousness, no confusion, no sweating, no palpitations, no bleeding tendency, no shortness of breath, no abdominal pain, no gastrointestinal losses, and no blurred vision. Bowel and urinary output were as usual. He was tolerating oral intake minimally. No fever was noted.
Upon review in the emergency department, the child was stable on room air, with no pain and no shortness of breath or chest pain. Right hand examination confirmed two fang marks with localised swelling over the dorsum, warmth to touch, no necrotic patch, and no signs of compartment syndrome. Radial pulse was palpable with intact distal circulation and sensation.
Treatment Received
- No antivenom administered (no systemic envenomation features; local envenomation only)
- Right upper limb elevated
- Swelling monitored with demarcation of swelling margin
- Distal circulation charting of right upper limb commenced
- No surgical procedure planned for right upper limb at this time
- Under joint Orthopaedic and Paediatrics teams
History of Allergy
No known drug allergy. No known food allergy.
Systems Review
Cardiovascular: No palpitations. No bleeding tendency. Good peripheral perfusion - radial pulse palpable, CRT < 2 seconds.
Respiratory: No shortness of breath. No chest pain. Stable on room air. No wheeze.
Gastrointestinal: No abdominal pain. No vomiting. No diarrhoea. Tolerating oral intake minimally since the incident.
Neurological: No loss of consciousness. No confusion. No blurred vision. Sensation intact over right hand and fingers.
Haematological: No active bleeding tendency. No bruising or petechiae. No haematuria or melaena reported. Haematological parameters to be monitored given pit viper venom with haemotoxic potential.
Musculoskeletal: Pain and swelling localised to right dorsum of hand. Full range of movement at elbow, wrist, and fingers. No compartment syndrome features.
Dermatological: Two fang marks over right dorsum of hand. Minimal bleeding. No erythema, no necrotic patch, no blistering at time of presentation.
Past Medical and Surgical History
- Infant of a mother with gestational diabetes mellitus (GDM) - admitted after birth at Hospital A for monitoring. No further sequelae documented.
- No other known medical illness.
- No prior surgical history.
This is his 2nd hospitalisation overall.
Birth History
Antenatal: Mother had gestational diabetes mellitus (GDM). No other antenatal complications documented.
Natal: Born at term, 38 weeks gestation, via spontaneous vaginal delivery (SVD). Birth weight not documented. No birth asphyxia.
Postnatal/Neonatal: Admitted after birth as infant of mother with GDM - monitored for hypoglycaemia. No prolonged NICU stay documented. No neonatal jaundice requiring phototherapy noted.
Feeding/Dietary History
Exclusive breastfeeding: Not documented.
Weaning/supplementary feed: Age-appropriate weaning history, no concerns raised.
Present feeding/diet: Tolerating oral intake minimally since the snake bite incident. No specific dietary restrictions. No food allergies.
Immunization History
Vaccinations up to date as per Malaysian National Immunisation Programme for age. Tetanus prophylaxis status noted - up to date with DTP series as per national schedule; no additional tetanus toxoid required.
Developmental History
| Domain | Milestone |
|---|
| Gross Motor | Playing actively and independently outdoors prior to incident - age-appropriate |
| Vision and Fine Motor | No concerns raised by parents |
| Hearing, Speech and Language | Communicating appropriately with family and medical staff - age-appropriate |
| Social, Emotional, and Behavioural | Attends kindergarten/preschool. Plays with siblings. Age-appropriate social development. |
Interpretation of developmental milestones / DQ: Developmental milestones appropriate for chronological age of 5 years 9 months. No developmental delay identified.
Family History
- Parents: No known medical illness
- Elder sister: Well, no known medical illness
- No family history of bleeding disorders or coagulopathy
- No family history of snake bite or envenomation
Social and Environmental History
Education: Attending kindergarten/preschool. Age-appropriate school attendance.
Employment: Not applicable (paediatric patient).
Smoking: Not documented.
Diet: No specific dietary restrictions. Normal diet for age.
Home circumstances: Lives in a residential area situated near a river. History of snake activity around the house - snake emerged from under stones near the water meter at the front of the property. High-risk environment for snake encounters given proximity to river and natural habitat.
History of contact with any illness: No recent contact with infectious illness.
Effect of illness on patient and family: Sudden traumatic event witnessed by the elder sister and managed initially by the father. Father acted appropriately by avoiding tourniquet, sucking, and massage. Application of herbal leaves (daun bisa) and administration of the leaf water were noted - parents counselled regarding the importance of not applying traditional remedies to snake bite wounds as they may obscure wound assessment and introduce infection risk.
Summary of History with Provisional Diagnosis
Muhammad Adib Amal is a 5-year-9-month-old boy with no significant past medical history who presented with an alleged snake bite to the right dorsum of the hand at 15:50H on 26/06/2026. The snake was identified as a Trimeresurus purpureomaculatus (Mangrove Pit Viper). He had two fang marks with localised swelling and warmth over the right dorsum of the hand. There were no features of systemic envenomation. Examination confirmed no compartment syndrome, intact distal neurovascular status, and no necrotic changes. X-ray of the right hand showed no foreign body, no osteomyelitis changes, and no gas shadow.
Provisional Diagnosis:
- Alleged snake bite - Trimeresurus purpureomaculatus (Mangrove Pit Viper) - localised envenomation, right hand, no systemic envenomation
Physical Examination
General Examination
General Appearance: Alert, conscious, pink. Not in distress at the time of review. No pallor, no cyanosis, no jaundice. Not tachypnoeic. Appears comfortable.
Vital Signs:
- Temperature: Afebrile
- Heart Rate: Within normal range for age
- Respiratory Rate: Not tachypnoeic, within normal range for age
- SpO2: Stable on room air
- Blood Pressure: Not documented
Anthropometric Measurements:
- Height: _____ cm Head circumference: _____ cm
- Weight: 17.1 kg BMI: _____ kg/m²
Impression: Alert, haemodynamically stable child following localised snake envenomation to the right hand with no systemic features.
Head to Toe Examination
Face, Head and Neck:
- Appearance: No dysmorphic features. No facial swelling.
- Hands: Right hand - two fang marks visible over the dorsum. Localised swelling over the dorsum of the right hand. Warm to touch. No necrotic patch. No blistering. No erythema at this time.
- Pallor: Absent
- Cyanosis: Absent
- Jaundice: Absent
- Oral cavity: Moist mucous membranes. No oral bleeding or mucosal haemorrhage.
- Eyes: No ptosis, no diplopia, no blurred vision reported. Pupils equal and reactive.
- ENT: No epistaxis. No bleeding from gums.
- Shape of head: Normocephalic
- Neck: No lymphadenopathy. No neck stiffness.
- Hair: Normal
- Fontanels: Closed (age-appropriate)
- Extremities: Right upper limb - see dedicated examination below. Left upper and bilateral lower limbs: no swelling, no injury. Good perfusion bilaterally.
- Skin: No petechiae, no purpura, no ecchymoses elsewhere on the body.
Examination of Back:
- Spine: No deformity. Normal alignment.
- Sacral oedema: Absent
Lymph Nodes:
- Cervical: Not enlarged
- Occipital: Not enlarged
- Axillary (right): Mildly enlarged reactive lymph nodes possible given localised envenomation - to monitor
- Inguinal: Not enlarged
Systems Examination
Systems involved:
- Musculoskeletal / Right Upper Limb (primary)
- Haematological (monitoring for coagulopathy)
- Cardiovascular
- Neurological
Right Upper Limb - Detailed Examination:
| Parameter | Finding |
|---|
| Fang marks | Two fang marks present over right dorsum of hand |
| Swelling | Present, localised to dorsum of right hand |
| Warmth | Warm to touch |
| Erythema | No erythema at present |
| Necrotic patch | Absent |
| Blistering | Absent |
| Range of movement | Full range at elbow, wrist, and all finger joints |
| Passive stretch test | Negative (no pain on passive finger extension - no compartment syndrome) |
| Compartment | Soft, not tense |
| Radial pulse | Palpable |
| CRT | < 2 seconds |
| Sensation | Intact over right hand and fingers |
Impression of right hand: Localised pit viper envenomation with local tissue effect only (swelling, warmth). No features of compartment syndrome. Intact neurovascular status distally.
Cardiovascular:
Heart sounds dual, regular, no murmur. Good pulse volume. No haemodynamic compromise. CRT < 2 seconds centrally and peripherally.
Respiratory:
Lungs clear on auscultation. No wheeze, no crepitations. Not tachypnoeic. Stable on room air. No neurotoxic features (no respiratory paralysis, no respiratory distress).
Abdomen:
Soft, non-distended. No tenderness. No organomegaly. Bowel sounds present and normal. No signs of abdominal compartment involvement.
Neurological:
Alert and conscious. Communicates appropriately. No ptosis, no diplopia, no dysarthria. No focal neurological deficit. No altered sensorium. Sensation intact in right upper limb.
Clinical Summary / Analysis of Patient's Problems
Muhammad Adib Amal is a 5-year-9-month-old previously healthy boy presenting with an alleged bite from a Trimeresurus purpureomaculatus (Mangrove Pit Viper) to the right dorsum of the hand. The snake was witnessed, identified, and brought to hospital. He has localised envenomation characterised by two fang marks, swelling, and warmth over the right dorsum of the hand. There are no features of systemic envenomation (no coagulopathy, no neurotoxicity, no cardiovascular compromise, no respiratory involvement). No compartment syndrome. Distal neurovascular status intact. X-ray shows no foreign body, no gas shadow, no bony changes.
A. Provisional Diagnosis
Localised envenomation - Trimeresurus purpureomaculatus (Mangrove Pit Viper) bite, right hand - no systemic envenomation at presentation
Points in favour:
- Witnessed bite with identified snake species (Trimeresurus purpureomaculatus - Mangrove Pit Viper, a haemotoxic pit viper common in riverine and mangrove habitats)
- Two clear fang marks on right dorsum of hand
- Localised swelling, warmth, and pain at bite site - consistent with local tissue effect of venom
- Residential area near river - plausible habitat for Mangrove Pit Viper
- No tourniquet or sucking applied - appropriate first aid limiting venom distribution
- Haemodynamically stable, no bleeding tendency, no systemic envenomation at time of review
Points against:
- Onset of systemic envenomation (coagulopathy, haemorrhage) with Trimeresurus species may be delayed - patient remains at risk and requires close monitoring for at least 24-48 hours
- Herbal remedy (daun bisa) applied - may confound local wound assessment
B. Differential Diagnoses
I. Dry bite (no venom injected)
- Trimeresurus species can deliver dry bites with fang marks but no envenomation
- Two fang marks present with localised swelling - suggests at least local envenomation has occurred
- Dry bite remains possible if swelling does not progress and no systemic features develop
- Clinical monitoring over 24-48 hours will differentiate
II. Non-venomous snake bite
- If the snake identification is incorrect, envenomation risk would be lower
- However, snake was brought to hospital and identified as Trimeresurus purpureomaculatus
- Two fang marks are consistent with a viperid bite pattern
III. Compartment syndrome of the right hand
- A known serious complication of pit viper envenomation due to progressive tissue swelling
- Currently excluded: compartment soft, passive stretch test negative, radial pulse palpable, CRT < 2s, sensation intact
- Must continue to monitor closely as swelling may progress
IV. Secondary wound infection / cellulitis
- Risk of secondary bacterial infection from the wound itself or from application of herbal leaves over the bite site
- No signs of infection at present - wound warm but no erythema, no pus, no necrosis
- Monitor over 24-48 hours; wound care and tetanus status to be ensured
Investigations (with Interpretation)
General Investigations
| Investigation | Result | Interpretation |
|---|
| X-ray Right Hand/Radius-Ulnar | No foreign body, no osteomyelitis changes, no gas shadow | No bony injury, no retained fang fragment, no gas-forming infection |
| FBC | Pending | To assess for thrombocytopaenia (venom-induced thrombocytopaenia with Trimeresurus species) and haemoconcentration |
| Coagulation profile (PT, APTT, INR, fibrinogen) | Pending | Key investigation - Trimeresurus purpureomaculatus venom is haemotoxic; defibrination syndrome and coagulopathy are known complications |
| Blood film | Pending | To assess for microangiopathic changes, fragmented RBCs, thrombocytopaenia |
| Renal profile (urea, creatinine, electrolytes) | Pending | Myonecrosis and haemoglobinuria can cause acute kidney injury in severe envenomation |
| LFT | Pending | Baseline; venom-induced hepatotoxicity possible in severe cases |
| Urinalysis | Pending | To look for haematuria, haemoglobinuria, or myoglobinuria |
| Blood grouping and crossmatch | To be sent | In anticipation of potential need for fresh frozen plasma or blood products if coagulopathy develops |
Specific Investigations / Monitoring:
- Serial swelling measurements with demarcation charting of right dorsum of hand
- Distal circulation charting: radial pulse, CRT, sensation, capillary filling - hourly initially, then 2-hourly once stable
- Repeat coagulation profile at 6 hours and 24 hours post-bite to detect delayed onset of haemotoxic coagulopathy
Final Diagnosis:
- Alleged snake bite - Trimeresurus purpureomaculatus (Mangrove Pit Viper) - localised envenomation, right hand dorsum, no compartment syndrome, no systemic envenomation at presentation
- Infant of mother with GDM - previous admission (resolved, no ongoing sequelae)
Management Plan
1. Envenomation Management - Local
- Right upper limb elevation to reduce swelling and promote lymphatic drainage
- Monitor and demarcate swelling margin with a skin marker - reassess every 1-2 hours for progression
- Distal circulation charting hourly: radial pulse, CRT, skin temperature, sensation, and capillary refill
- Passive stretch test to be repeated with each assessment to detect early compartment syndrome
- No tourniquet, no incision, no suction - avoid wound manipulation
- Wound care: clean the bite site gently; no herbal applications to continue
- Tetanus status confirmed up to date - no additional prophylaxis required
2. Antivenom
- No antivenom indicated at this time - no systemic envenomation features present
- Criteria for antivenom administration (to be reviewed): evidence of systemic envenomation - coagulopathy (prolonged PT/APTT, low fibrinogen, elevated D-dimer), haemorrhage, progressive severe local swelling, or cardiovascular/neurological compromise
- Polyvalent or species-specific antivenom to be on standby; discuss with toxicology or poison centre if systemic features develop
- Risk of antifascin reaction and anaphylaxis if antivenom given - ensure resuscitation equipment and adrenaline available at bedside
3. Haematological Monitoring
- Serial FBC, coagulation profile (PT, APTT, fibrinogen, D-dimer), and renal profile at:
- Baseline (on admission)
- 6 hours post-bite
- 24 hours post-bite
- If any clinical deterioration - urgent repeat
- If coagulopathy detected: consider fresh frozen plasma (FFP), cryoprecipitate, or antivenom depending on severity
4. Pain Management
- Paracetamol (15 mg/kg/dose) PRN for pain
- Avoid NSAIDs (risk of worsening coagulopathy if haemotoxic envenomation develops)
- Avoid intramuscular injections given risk of haematoma if coagulopathy develops
5. Hydration
- Encourage oral fluid intake
- IV access secured and maintained - IV fluids if oral intake inadequate or clinical deterioration
- Monitor urine output - aim > 1 mL/kg/hour; haemoglobinuria or myoglobinuria mandates aggressive IV hydration
6. Observation and Admission
- Admit under joint Paediatrics and Orthopaedic teams
- Minimum 24-48 hours observation given risk of delayed haemotoxic envenomation with Trimeresurus purpureomaculatus
- Nurse in monitored bay with regular vital signs
- Stable on room air - observe under RA
7. Parental Counselling
- Explain the nature of the snake species and the risk of delayed coagulopathy
- Counsel regarding the importance of avoiding traditional remedies (herbal applications) on the wound
- Reassure regarding current stability and explain monitoring plan
- Advise on environmental precautions at home given proximity to river - keep the area around the water meter clear of stones and debris
Progress in the Hospital
Day 1 (26/06/2026, evening):
Muhammad Adib Amal admitted following witnessed Trimeresurus purpureomaculatus bite to the right dorsum of the hand at 15:50H. On review, child alert, conscious, and haemodynamically stable. Right hand: two fang marks with localised swelling and warmth over dorsum, no necrotic patch, no compartment syndrome features, radial pulse palpable, CRT < 2s, sensation intact. X-ray right hand: no foreign body, no gas shadow, no bony injury. No antivenom given. Right upper limb elevated. Distal circulation charting commenced hourly. Swelling margin demarcated. Bloods sent including FBC, coagulation profile, renal profile, and urinalysis. Under joint Paediatrics and Orthopaedics teams. Parents counselled. Plan to monitor closely for 24-48 hours for systemic envenomation.
Status of Patient at Time of Discharge
(To be completed at discharge)
Discharge criteria:
- Minimum 24-48 hours observation completed
- Serial coagulation profiles normal at 6 hours and 24 hours post-bite
- No signs of systemic envenomation (no coagulopathy, no haemorrhage, no renal impairment)
- Swelling stable or regressing, no compartment syndrome
- Intact distal neurovascular status of right upper limb
- Tolerating full oral intake
- Wound reviewed - no signs of secondary infection
- Parents educated on wound care, signs of late envenomation to watch for (bruising, bleeding, progressive swelling), and when to return to hospital
- Environmental safety counselling given regarding residential area near river