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Tuesday, May 5, 2020

PEDIATRICS MCQS, TOACS, PEARLS & UPDATES FOR MRCPCH/FCPS/MCPS EXAMS: Pediatric Quiz: Pediatric Gastrointestinal disored...

PEDIATRICS MCQS, TOACS, PEARLS & UPDATES FOR MRCPCH/FCPS/MCPS EXAMS: Pediatric Quiz: Pediatric Gastrointestinal disored...: Pediatric Quiz PEDIATRIC SHORT CASE STUDY Index => PEDIATRIC SHORT CA...

PEDIATRICS MCQS, TOACS, PEARLS & UPDATES FOR MRCPCH/FCPS/MCPS EXAMS: PEDIATRIC QUIZ: FOR YOUR CLINICAL EXAMS

PEDIATRICS MCQS, TOACS, PEARLS & UPDATES FOR MRCPCH/FCPS/MCPS EXAMS: PEDIATRIC QUIZ: FOR YOUR CLINICAL EXAMS: PEDIATRIC QUIZ PEDIATRIC QUIZ Index => PEDIATRIC QUIZ Quiz ...

PEDIATRIC QUIZ: FOR YOUR CLINICAL EXAMS

PEDIATRIC QUIZ PEDIATRIC QUIZ

PEDIATRIC QUIZ

Quiz

 

Thursday, April 30, 2020

DAILY PEDIATRIC QUIZ: Learn Pediatric and Clear Your exams


DAILY PEDIATRIC QUIZ: Learn Pediatric and Clear Your exams


PEDIATRICS MCQS, TOACS, PEARLS & UPDATES FOR MRCPCH/FCPS/MCPS EXAMS: Indications and Timing of Intervention for Common ...

PEDIATRICS MCQS, TOACS, PEARLS & UPDATES FOR MRCPCH/FCPS/MCPS EXAMS: Indications and Timing of Intervention for Common ...: Indications and Timing of Intervention for Common Congenital Heart Diseases Atrial Septal Defect (ASD) Diagnostic work-up: Phy...

Indications and Timing of Intervention for Common Congenital Heart Diseases (ASD)


Indications and Timing of Intervention for Common Congenital Heart Diseases

Atrial Septal Defect (ASD)

Diagnostic work-up:
Physical examination, ECG, X-ray chest, echocardiography, and cardiac catheterization (may need in select cases).




Types of Atrial septal defect:
Ostium secundum (~75%);
Ostium primum (15%-20%);
Sinus venosus (5%-10%); and
Coronary sinus (<1%). 


Patent foramen ovale:
Small defect in fossa ovalis region with a flap with no evidence of right heart volume overload. Diagnosed on echocardiography, is a normal finding in newborns. 


Indication for closure:
ASD with left-to-right shunt associated with evidence of right ventricular volume overload without evidence of irreversible pulmonary vascular disease.
Indications for ASD closure remain the same irrespective of the method of closure.

Contraindications for closure:
Severe pulmonary arterial hypertension or irreversible pulmonary vascular disease. 


Ideal Age of Closure Asymptomatic child:
2-4 years. For sinus venosus defect surgery may be delayed to 4-5 years.
Symptomatic ASD: Rarely seen in infants. Present with congestive heart failure, pulmonary arterial hypertension. Early closure is recommended after ruling out associated lesions such as left ventricular inflow obstruction, aortopulmonary window, total anomalous pulmonary venous drainage, etc.
If presenting beyond ideal age: Elective closure irrespective of age as long as there is left-to-right shunt with right heart volume overload and pulmonary vascular resistance is within operable range.

Method of Closure:
Surgical: Established mode.
Device: For secundum ASDs with adequate rims and weight of child >15kg.

Recommendations for Follow-up:
Follow-up after surgical closure: Clinical and echo in the first year only. No further follow-up required if no residual disease, no pulmonary hypertension or arrhythmia.

Patient/guardians should be explained about reporting to hospital in case of any cardiac symptoms, or symptoms suggestive of arrhythmias.

Follow-up after device closure:
(a) Anti-platelet agents for total duration of 6 months
(b) Echocardiography: - At discharge, 1 month, 6 months, 1 year, then every 3-5 years.

Infective endocarditis prophylaxis: It is recommended for 6 months after device or surgical closure. However, all patients are advised to maintain good oro-dental hygiene after this period also.


Tuesday, April 14, 2020

Prolonged Fever: 07 Essential steps to reach the diagnosis? Blind empirical drug therapy when indicated?

Prolonged Fever


STEP # 01: Keep in mind the causes of prolonged fever

These are infections & non-infectious causes

Infections causes:

Bacterial infections 
Systemic infections: Salmonellosis, brucellosis, listeriosis, leptospirosis, tularemia, tuberculosis 
Hidden focal infections: Abscess (liver, perinephric, pelvic), endocarditis, pericarditis, pyelonephritis, osteomyelitis 

Viral infections 
Infectious mononucleosis, cytomegalovirus infection, Human immunodeficiency virus (HIV), hepatitis 

Parasitic infestations 
Malaria, toxoplasmosis, visceral larva migrans

Non-infectious causes:

Rheumatic diseases
Rheumatic fever, systemic rheumatoid arthritis, polyarteritis nodosa, systemic lupus erythematosus, kawasaki disease, mixed connective tissue disease

Malignancies
Leukemia, lymphoma, neuroblastoma

Immune reactions
Drug fever, serum sickness

Other causes
Factitious fever or false fever, Crohn disease, Diabetes insipidus, Anhydrotic ectodermal dysplasia, Familial Mediterranean fever

STEP # 02: Is it  prolonged fever?

Prolonged fever is a fever with duration of more than 10 - 14 days. Although it is not as common as short febrile illness, it causes greater concern of both parents and doctors.
Fortunately, unlike adults, most cases of prolonged fever in children are caused by benign infections and the prognosis for ultimate recovery is generally good.

STEP # 03: Is it  true prolonged fever?

Is it truly a prolonged fever?
• Is there an evident cause?
• Unexplained prolonged fever... What is the cause?

Is it truly a prolonged fever?
The complaint of prolonged fever, as any other prolonged complaint, should not be accepted without careful analysis. Parents may misinterpret normal temperature as a mild fever. Careful history may reveal that the condition represents 2 short febrile illnesses rather than a prolonged one. Documentation of fever is important in accepting the complaint as a true prolonged fever.

STEP # 04: Is there an evident cause for prolonged fever?

With documented prolonged fever, detailed history and meticulous examination may
reveal an evident cause or at least suggest a specific disease.

History and examination in children with prolonged fever

Nonspecific findings denoting significant illness

Symptoms: Anorexia, weight loss.
Signs: Toxic look, pallor, cachexia, lymphadenopathy or Hepatosplenomegaly.

Specific findings suggesting a particular disease

Symptoms related to a specific system: CNS, chest, heart, GIT, urinary.

History of contact to an adult with chronic chest disease: ? Tuberculosis.

History of eating rabbit meat: ? Tularemia.

History of medications: ? Drug fever.

Rigors: Septicemia, pyelonephritis or malaria.

Pharyngitis: Infectious mononucleosis, cytomeglovirus, tularemia, toxoplasmosis.

CNS examination May suggest meningitis.

Chest examination: May reveal pneumonia or empyema.

Cardiac examination: May reveal endocarditis or pericarditis.

Abdominal examination: Liver (hepatitis, abscess) or loin tenderness (perinephric abscess).

Skeletal examination: Arthritis or osteomyelitis (focal tenderness).

Rectal examination: Focal tenderness suggests pelvic abscess.

STEP # 05: After history and examination, did you find any cause for prolonged fever?

With clinical suspicion of any disease, investigations should be directed to confirm or exclude the suspected disease.

Unexplained prolonged fever... What is the cause?
When history and physical examination fail to reveal an evident cause or to suggest a specific disease, the term “unexplained prolonged fever” or “fever of unknown origin
(FUO)” can be used. These terms should be restricted to cases of documented fever with duration of at least 10-14 days.

STEP # 06: Whether to admit or not?

In patients with good general condition and a rather short history, simple investigations (CBC, ESR, CRP, urine analysis) can be made on an outpatient basis.
Normal laboratory findings in this group indicate that the illness is mostly a benign viral infection. Reassurance and follow-up are important.

Patients with clinical findings indicating that the illness is significant should be hospitalized and further investigated. Hospitalization is also indicated in those with abnormal results of initial simple investigations.

Hospitalization is useful for several reasons:
a. Documentation of fever: Temperature should be regularly measured by a reliable person to exclude the possibility of “factitious or false fever”.
b. Drugs should be avoided as much as possible to exclude the possibility of drug fever. In this case, fever will subside within 1-3 days of discontinuation of the responsible drug.
c. Close observation for the general condition (appetite, activity, reaction to stimulation), presence of rigors (septicemia, malaria) or appearance of new symptoms or signs. Frequently, the fever may subside spontaneously without any specific therapy and even before completing the investigations.

STEP # 06: Investigations in children with unexplained prolonged fever

Nonspecific Investigations to confirm the presence of significant illness
Complete blood count (CBC): Leukocytosis, leukopenia or eosinophilia (larva migrans).
Erythrocyte sedimentation rate (ESR): Above 30 mm (first hour).
C-reactive protein (CRP): Above 20 - 30 mg/liter.
Chest X-ray: Pneumonic consolidation or pulmonary infiltrate.

Specific investigations to identify the causative disease
Initial investigations
Blood culture (aerobic and anaerobic): May be repeated.
Urine culture.
Tuberculin test and culture of gastric washing.
Blood film for malaria.
Common serological tests: Typhoid, infectious mononucleosis (monospot), brucella.

When the above specific initial investigations are negative
Specific blood culture for listeriosis, leptospirosis, tularemia.
Specific serological tests for leptospirosis, tularemia, toxoplasmosis.
Bone marrow examination (for leukemic blast cells) and culture (bacteria).
Abdominal ultrasonography: For liver abscess, epinephric abscess.
Echocardiography: In patients with preexisting cardiac disease (infective endocarditis).

When all of above are negative
Lymph node biopsy: May reveal lymphoma.
Radioactive scanning: May reveal osteomyelitis.
Total body CT scanning or MRI: May reveal hidden tumors.

Remember: International studies showed that in 25% of cases, the cause remains unknown even after exhaustive investigations.

STEP # 07: Blind empirical drug therapy may or may not be started? When indicated?

Blind empirical drug therapy should be generally avoided as it may mask the condition and makes the diagnosis more difficult. Exceptions to this rule are:
a. Blind antibiotic therapy in patients with the clinical diagnosis of septicemia but the organism could not be isolated.
b. Blind antituberculous therapy in sick patients with cachexia and weight loss and when the possibility of tuberculosis is strongly standing in spite of the negative laboratory investigations.