acute liver failure


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Khushbu    on Jul 16, 2012 Says :

nice presentation.
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Slide 1 : Acute Liver Failure
Slide 2 : INTRODUCTION ACUTE LIVER FAILURE IS SUDDEN SEVERE IMPAIRMENT OF LIVER FUNCTIONS WITH COMPLICATIONS OF HEPATIC ENCEPHALOPATHY AND IMPAIRED PROTEIN SYNTHESIS. IT INDICATES THAT LIVER HAS SUSTAINED SEVERE DAMAGE[80-90% LIVER CELL FUNCTION LOSS]
Slide 3 : AETIOLOGY ACUTE VIRAL HEPATITIS[A,B,D] DRUGS- PARACETAMOL,HALOTHANE,ANTI TB DRUGS POISONS-AMANITA [MUSHROOM] EXCESSIVE ALCOHOL INTAKE MISCELLANEOUS-WILSON DISEASE,ACUTE FATTY LIVER OF PREGNANCY,REYE’S SYNDROME IN CHILDRENS SHOCK AND CARDIAC FAILURE
Slide 4 : BASED ON TIME TAKEN FROM JAUNDICE TO DEVELOPMENT OF HEPATIC ENCEPHALOPATHY ACUTE LIVER FAILURE CLASSIFIED AS 1.HYPERACUTE [WITHIN 1 WEEK] 2.ACUTE [8-28 DAYS] 3.SUBACUTE [4-12 WEEKS]
Slide 5 : PATHOLOGY WIDE SPREAD HEPATOCELLULAR NECROSIS BEGINING IN CENTRIZONAL DISTRIBUTION PROGESSING TOWARDS PORTAL TRACTS
Slide 6 : Signs and Symptoms 1.CEREBRAL DISTURBANCES[HEPATIC ENCEPHALOPATHY] 2.CEREBRAL OEDEMA-increased intracranial tension,fixed pupil,papillodema,hypertensive episodes,profuse sweating. 3.JAUNDICE 4.COAUGULOPATHY-IMPAIRED SYNTHESIS OF COAGULATION FACTORS[PROLONG PROTHROMBIN TIME]. 5.Renal failure-in about 50% patients with liver failure. 6.Fetor hepaticus 7.asterixis[flapping tremor]
Slide 7 : More Signs and Symptoms Right hypochodrial pain Nausea ,vomiting,malaise. Local or general myoclonus,focal fits,decerebrate posturing. Ascites and oedema are late symptoms
Slide 8 : INVESTIGATIONS Toxicologyscreening of blood &urine. Prothrombin time prolongation Complete blood picture Viral hepatitis serology IgM anti-Hbc,IgM anti HAV.ANTI HEV &HEC. AUTOIMMUNE MARKERS-ANF ,ASMA,LKM. ULTRASOUND LIVER AND DOPPLER HEPATIC VEINS.
Slide 9 : TREATMENT IMMEADIATE ADMISSION TO ICU. SUPPORTIVE RX WITH ADEQUATE NUTRITION MAINTAINANCE OF FLUID BALANCE MECHANICAL VENTILATION INTRACRANIAL TENSION MONITORING IN SEVERE ENCEPHALOPATHY
Slide 10 : TREATMENT CONTD… N ACETYL CYSTEINE THERAPY FOR PARACETAMOL POISOINING LIVER TRANSPLANTATION
Slide 11 : CRITERIA FOR LIVER TRASPLANTATION FOR PATIENTS WITH PARACETAMOL TOXICITY- 1.pH<7.3 or 2 .PT >100 sec 3. serum creatinine levels-3.4 mg/dl 4.grade 3 or 4 encephalopathy
Slide 12 : FOR OTHER PATIENTS PT>100 SEC or THREE OF THE FOLLOWING VARIABLES AGE<10 YEARS or > 40 YRS CAUSES-1.NonA NonB hepatitis 2.drug induced hepatitis 3.Duration of jaundice before encephalopathy >7 days PT>50 sec Serum bilirubin levels>17.6mg/dl

 



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