metabolic encephalopathy
TRANSCRIPT
Metabolic encephalopathy
Marwan Y.Kattan PGY1
History A 80 y old male pt. known to be
hypertensive ,living alone, admitted for altered level of consciousness.
Pt condition started the day preceding his admission as pt was complaining from generalized fatigue and weakness ,SBP was 200 and he has been advised to double his antihypertensive drug (thiazide).
Next day pt was found at the ground with altered level of consciousness and urinary incontinence.
History
No preceding fever, no chills, no headache, no photophobia,no N & V,no visual problem,no aura or abnormal movements.
No cough, no sputum ,no SOB. No chest pain,no palpitation, no diaphoresis. No flank pain, no dysuria, no hematuria.
History
No history of travel No empty bottle or suicide note was found
Past Medical History
HTN + DM – No CRF No liver cirrhosis or chronic liver disease No malignancy No psychiatric illness No history of blood transfusion
Past Surgical History
Nil
Allergy
NKDA
Social history
Non-smoker Non-alcoholic Non-IV drug user
Medication
Esidrex 25mg 1 tab QD No insulin or antidiabetic agents No benzodiazepam or hypnotics
Physical exam.
V/S HR:60/min irregular irregularity BP:140/80 RR:30/min Temp 36 c
Physical exam
Semi-conscious Not alert Disoriented to P-P-T Elderly male Looking ill Good nutritional status dehydrated
Physical exam
GCS BMR localizes pain5 BVRinappropriate words3 BERspontenous4 Total 12/15
Physical exam
Meningeal signs No neck stiffness No kerning sign No brudzinskiPupils Equal reactive
Physical exam Motor Tone:normal and symmetrical Power :could not be assess Reflex :normal and symmetrical Sensory Pain,touch,vibration,postion :could not be
assess Deep pain: present and symmetrical Babinski :down going
Physical exam
Cerebullar exam&Cranial nerves : could not be assess HEET:no palor, no jaundice, no cynosis, no LAP,no rasid
JVP,no depress fracture, no raccoon eyes, no battle’s sign, no palpable thyroid gland.
Chest :GBAE,inspiratory rhonchi and expiratory crepitation on RLLL.
Heart:S1& S2 irregular irregularity , no murmur Abdomen:soft,no HSM, no palpable kidneys,no ascitis,
BS + Ext: PPP, no LLL
Differential DiagnosisCNS Causes 1- Hypertensive encephalopathy R/O with BP140/80 at presentation 2- CVA 3-epi or sub dural hematoma 4-SAH Brain MRI: no new ischemia, old ischemic
lesions and atrophy, no mass 5- CNS infection 6-seizures
Endocrino.Causes
1-NKDC2-DKA3-hypoglycemia
R/O HGT of 190 U/A -ve keton4-hypothyroidism TSH 0.24,FT3 1.95,FT41.17
Drugs or suicide
No enough clues
sepsis
1-Pneumoina WBC-13.8 N 90%-L 5.3% CRP 5.23 PH 7.43,PCO2 43.5,PO2 68.8,sat 94.6% CXRnormal 4days laterRLLLinfltarateaspiration
sepsis
2-Urosepsis U/ARBC 68 WBC 180 Epith +++ Urine Cxno growth Blood CXStaph.Epi in 1 bottle
Cardiac Cause
Myocardial infarction ECG Slow rate atrial fibrillation troponin 0.168 CPK 694 CK-MB 29 Serial troponin 0.120.0950.084
metabolic Causes
1-Hepatic encephalopathy LFT GOT 70 GPT 35 ALP 61 GGT 40
Metabolic Causes
2-Uremic encephalopathy RFT Urea 56 crea1.16 K 3 Cl 101 Hco3 32.8
Metabolic causes
3-Hypernatremia or Hyponatremia R/O Na 141
Metabolic Causes
4-Hypercalcemia Ca 14.8 Ph 1.4 Alb 4.8
Hypercalcemia
Hyperparathyroidism Bone metastasis 1-MMmale,age,ALP afebrile,Hb15,ESR11 2-prostate caSPA=3.77 3-lung ca 4-thyroid ca 5-kidney ca
Hypercalcemia Thiazide Lithium Vit A or D toxicity Sarcoidosis and other granulomatous
diseases Milk-alkali syndrome Immobility Familial hypocalciuric hypercalcemia hyperthyroidism
hyperparthyroidism
PTH 492.5(15-65)adenoma vs malignancy Neck US enlarge R.inf.parathyroid gland
mangement
Pt receive: IV hydration+lasix+Miacalcic+Zometa AB+Bronchodilator+steroids nifedicor+captopril+IV nitrocine Anticoagulation KCL and sodium phosphate Schedule for surgery
mangement Neck exploration with R.inf.gland resection PTH drop more than 80% 30 min after
resection BXAdenoma Pt improve dramatically and dischaged with Caltrate+1alfa(post-operative hypoca) Sintrom Captopril and nifedicor To be follow up as an out pt.
Symptoms and Signs of hyerCa
A symptomatic >12mg/dl >13mg/dlRF+ectopic soft-tissue calcification Renal: polyuria+thirst+stones GIT: anorexia,nausea,vomiting,constipation Neurologic:weakness,fatigue,confusion,stuporand comaECGshortened QT
Calcium metabolism
Treatment of hypercalcemia
1. According to cause2. According to ca level Mild hyperca<12mg/dlhydration More severe 13-15mg/dlmore agressive Life threatening>15mg/dlemergency
measure
Bisphosphonates High affinity to bone especially in area of
increase bone turnover powerful inhibitors of bone resorption
osteoclast Mechasim:1. Alter osteoclast proton pump function or
impair the relase of acid hydrolases2. Inhibite the differential of monocyte-
macrophage precursors into osteoclast3. Effect on osteoblast as well
Bisphosphonates
Duration of action:1-2d and last for 1 w 3rd generationzolendronate faster and last
longer Dose1-4mg IV over few min
calcitonin Mechanism:1. Inhibite osteoclast and bone resorption2. Increase urinary Ca excretion by inhibition of
renal tubular Ca reabsorption Duration of action: few hours Minimal lowering of Ca Dose:2-8 U/Kg IV,SC or IM Q6-12h