Gastrointestinalemergencies Richard
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Gastrointestinal Emergencies
Dr Richard Warner
SpR Gastroenterology
September 2005
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GI emergencies
GI bleeding
Paracetamol Overdose
Severe ulcerative colitis/Crohn’s colitis
Liver Failure
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Upper GI Bleeding
Incidence 100/100,000
Mortality - 1947 9.9%, 1995 11% (6%), 33% (17%) in hospitalised patients
Higher MR in elderly with co-morbidity
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Causes of Upper GI Bleeding
peptic ulceration (35-50%)
oesophagitis, gastritis, duodenitis (5-15%)
gastroduodenal erosions (8-15%)
Mallory Weiss tear (15%)
varices (5-10%)
tumour (1%)
angiodysplasia, telangiectasia (2-3%)
vascular ectasia, Dieulafoy’s lesion(1-2%)
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Varices
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Varices
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Varices
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Oesophagitis
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Mallory Weiss Tear
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Gastric ulceration
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Angiodysplasia
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Duodenal Ulceration
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Symptoms at Presentation
haematemesis/melaena/both
breathlessness, chest pain
collapse
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Management of Upper GI Bleed
Resuscitation
Assessment of vital signs
wide bore venous cannulae/?central line
crystalloid, colloid/blood
blood tests and cross match
monitoring - bp, hr, urine output, ?cvp
early endoscopy and inform surgeons
high dose iv ppi for peptic ulcers
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Factors in History
NSAIDs, clopidogrel, steroids
alcohol history
liver disease
anticoagulants
family history
severe vomiting
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Severe UGI Bleed/ High risk
Haematemesis and melaena
cardiovascular compromise
age>65
co-existing cardiorespiratory disease
Hb <10g/l
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Rockall Scoring System(Risk of rebleeding and death)
0 1 2 3
Age <60 60-79 80
Shock No shock tachycardiabp >100
hypotension
Comorbidity Nil major Major co-morbidity,heart failure,ihd
Renal, liverfailuremetastaticdisease
Diagnosis MW tear, nolesion
All otherdiagnoses
Upper GImalignancy
Major SRH None or dark spot
High riskstigmata
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Rockall Scoring System 2
Score less than 3 = excellent prognosis
?fast tracked for discharge
score > 8 = high mortality risk
close monitoring
stratified post endoscopy
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Endoscopy for UGI Bleeding
Diagnostic and therapeutic
Peptic ulceration - injection, heater probe, haemoclips
high risk - actively bleeding vessel (0-75%)
non-bleeding visible vessel (4-27%)
adherent clot
therapy rebleeding, surgery, mortality
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Evidence for Intravenous Omeprazole
Lau et al 2000 (NEJM)
15-20% rebleeding rate for peptic ulcers
80mg bolus, 8mg/hour for 72 hours, 20mg
orally for 8 weeks
adrenaline+thermocoagulation, randomised to ppi (120) or placebo (120) (30 day FU)
rebleeding in placebo 22.5% (20% ), omeprazole 6.7% (4%)
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Variceal Bleeding
Mortality 30-80% (average 50%)
?Severity underlying liver disease (A<B<C)
50% rebleed in 10 days
30-50% cirrhotics have a variceal bleed
40-80% rebleed in 1 year
33% survive 3 years
no bleed if portal pressure <12mmHg
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Therapy for Varices
Endoscopic - banding or sclerotherapy
Medical - terlipressin, octreotide
Tamponade - Sengstaken-Blakemore tube
Surgery - shunts, oesophageal transection
TIPSS
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Endoscopic Therapy of Varices
Sclerotherapy control of bleeding
Band Ligation 1995 Lo demonstrated band ligation better than sclerotherapy (94%:80%)1998 Stiegmann demonstrated control of bleeding decreased rate of complications, decreased MR compared to sclerotherapy
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Medical Therapy of Bleeding Varices
vasopressin/glypressin +/- GTN increased rate control of bleeding, no benefit survival
somatostatin/octreotide increased rate control of bleeding, improved survival
somatostatin=sclerotherapy=tamponade
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Sengstaken
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Primary and Secondary Prevention of Variceal
BleedingBetablockers - propanolol 40-80mg bd
Primary - screen cirrhotics
?prophylactic banding (Gastro 2002)
Secondary - once bleed settled
Aiming portal pressure <12mmHg/ 20%
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Role of Beta-blockers
Decrease portal pressure, splanchnic vasoconstriction
Primary 9 RCT, 1 meta-analysis
significant decrease in risk of bleeding
cirrhotics screened, if varices start blocker
Secondary755 patients in 11 trials significant decrease in rebleeding rates
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TIPPS
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Transjugular Intrahepatic Porto-systemic Shunt
Refractory variceal bleeding
refractory ascites
Budd-Chiari
95-100% success rate
0-2% procedural mortality, 10% morbidity
30 day mortality 5-15%
bridge to transplantation
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Complications of TIPSS
Restenosis, occlusion (rebleeding)
thromboembolism
hepatic encephalopathy (13-55%)
haemorrhage, haemobilia, cholangitis
stent migration
heart failure, liver failure
infection
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Variceal Bleed Treatment Plan
Resuscitation and early endoscopy
Banding +/-sclerotherapy
?haemostasis repeat 5-7 days
?failed iv vasoconstrictor +/-tamponade
?failed endoscopy x2/medical Rx ?TIPSS
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Lower GI Bleeding
Diverticular disease
Adenoma/Carcinoma
Colitis
Angiodysplasia
Vasculitis
Ischaemia
Haemorrhoids
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Paracetamol Overdose
15g potentially lethal
conjugates sulphate and glucuronidetoxic metabolite NAPQI binds glutathioneexcreted as cysteine conjugateN-acetyl cysteine/methionine releases glutathione
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High risk paracetamol overdoses
Pre-existing liver disease
high alcohol intake
enzyme inducing medication
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Paracetamol OD Symptoms
Usually after 24 hours
anorexia, nausea, vomiting
day 2 abdominal pain, liver tenderness
liver damage detectable>18 hours
maximal liver damage 72-96hours
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Complications of Paracetamol Overdose
Jaundice and FHF
renal failure (ATN)
hyperlactataemia (mild early, late severe)
metabolic acidosis
hypophosphataemia, hypo/hyperglycaemia
cardiac arrhythmias
pancreatitis, GI bleeding, cerebral oedema
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Management of Paracetamol OD
? level 4hours
lower significant level if high risk
? gastric lavage
iv n-acetyl cysteine
IV fluids ++
Antibiotics
early liaison with liver unit, ? renal dialysis
liver transplantation
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Prognostic factors
PTT >100s (PTT >180s < 8% survival)
pH <7.30 (15% survival)
creatinine >300 (23% survival)
factor VIII/V close correlation prediction survival
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Severe Ulcerative colitis
Truelove and Witt’s Criteria of severity
bowel frequency >6/day, bloody diarrhoea
heart rate >90/min
ESR >30mm/hr
temperature >37.5
Hb <10g/dl
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Symptoms severe UC
? systemically unwell
Fever
Abdominal pain
dehydration
electrolyte imbalance
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Assessment of severe UC
Stool cultures
Blood tests - FBC, U&Es, ESR, LFTs, albumin, CRP
AXR - toxic megacolon, mucosal islands small bowel loops
flexible sigmoidoscopy - severity ulceration
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Management of Severe UC
Joint physician/surgeons
high dose intravenous steroids
rectal steroid
ivi
free fluids/light diet
close monitoring
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Course of Severe UC
25% severe colitics considered for colectomy
urgent colectomy if complications
daily AXR if abnormal
regular blood tests
If at day 3 CRP >45 or bowel frequency >8/day & CRP <45 = 83% risk colectomy
?role for iv/oral cyclosporin
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Crohn’s colitis
High dose iv steroids +/- rectal steroids
Antibiotics - metronidazole
role for anti-TNF
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Liver Failure/DecompensationHistory is crucial
Establish Childs score
Ascites, Albumin, Bilirubin, PT, Encephalopathy.
Look for why Decompensated
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Decompensation
GI Bleed
Sepsis
Drugs
Constipation
Dehydration
End Stage
?? Head injury
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Investigations
FBC/MCV
Clotting
U+Es
Albumin + LFTs
CRP/ESR
AFP + USS (? PV thrombosis/hepatoma)
Hep screen if not previously done
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Investigations
Ascitic diagnostic tap
Blood Cultures
Urine Cultures
Consider OGD
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Treatment
Stop all sedating/toxic drugs
Laxatives
Antibiotics
Vitamin K / Thiamine/Pabrinex
Decide ITU/Transplant candidate
Consider NG tube
High protein / Low Salt diet
Avoid Saline !!!!!!
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Ascites is not just a Cosmetic Problem !
Median Survival 2 years from onsetSurvival depends mainly on Liver FunctionSBP occurs ~25%Low urinary Na+ & SBP predict high mortality
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SBP
No Set Rules!
? Drain
3 x 100mls 20% salt poor HAS day 1+2
2 x 100mls 20% HAS day 3
Antibiotics long term
Consider transplant
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Hepatorenal syndrome
Splanchnic vasodilatation
Effective underfilling
Salt and water retentionVasoconstrictor systems
Renal vasoconstriction
Hepatorenal syndrome
Ascites
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Hepatorenal syndrome
DiagnosisDiagnosisDiagnosis according to strict criteria (IAC 1996)
Renal failure in context of liver failure in absence of other cause associated with low urinary sodium
Type 1Rapidly progressive renal failure.
Median survival 15 daysType 2
Slowly progressive but patients at risk of deterioration to Type 1.
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Treatment optionsVasoconstrictorsTerlipressinNoradrenalineMidodrine and octreotide
Increase central blood volumeAlbuminTIPSS
Transplantation
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Hepatorenal syndromeTerlipressin with albuminTerlipressin with albumin
Long acting vasopressin analague, splanchnic vasoconstrictor
21 patients with Type 1 HRS Terlipressin (0.5-2mg IV Q4hrly) + Albumin
(1g/kg then 20-30g/day) 15 days or until creatinine normal 12/21 (57%) complete response 12/21 (57%) complete response (historically 15%) CR 77% with albumin Vs 25% if no albumin (CR 77% with albumin Vs 25% if no albumin (P<0.03P<0.03)) 17% relapsed after withdrawal drug CR associated with increased survival
Ortega, Hepatology, 2002
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Hepatorenal syndromeNoradrenaline
N=12 0.5-3mg/h + albumin + frusemide 10+/-3days Aim CrCl > 40ml/min, creatinine < 133micmol/L Reversal 10/12
association with increase MAP, decrease renin-aldosterone
3 OLT, 4 “more stable”, 5 “early deaths”
Duvoux Hepatol 2002
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Hepatorenal syndromeMidodrine and octreotide
N= 13 Type 1 HRS
Oral midodrine (oral vasoconstrictor)+ S/C octreotide Vs M+O+DA to increase MAP >15mmHg for 20 days
Small study but improved survival in M+O Vs +DAAngeli
1999
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Hepatorenal syndromeTIPSS
41 non transplant candidates ( non randomised)31 TIPSS (21 type 1, 10 type 2)
Maximal benefit takes 2 weeks
Increased creatinine clearance, salt excretionSurvival 3/12: 81% Vs 10%
Brensing Gut 2000
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Hepatorenal Syndrome
TIPSSType 2 HRS
N=18 Type 2 HRS CP CNo HE resistant to medical therapyComplete remission of ascites Improved renal function
Testino, Hepatogastro 2003
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Hepatorenal Syndrome
Medical therapy as a Bridge to TIPSS
N=14, Type 1 HRS, M+O 14 days10/14 improved renal function and sodium
handling5/10 - TIPSS
Normal renal function, Na handling and no ascites at 1 year
Wong Hepatol 2004
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Hepatorenal syndrome
Effect of HRS upon outcome of OLT
N=9 HRS with terlipressin RxN=27 without HRS
Same 3 year survivalSame renal function post OLT, time in
hospital and ITU post OLT
Restuccia T, J Hepatol 2004
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Hepatorenal syndrome
SummaryTerlipressin with plasma expansion Increasing role of TIPSS in
Transplant candidatesType 2 HRSMedical therapy as bridge to TIPSS/ OLT
Consider transplantation