Showing posts with label UGIB. Show all posts
Showing posts with label UGIB. Show all posts

Wednesday, October 27, 2021

UGIB Q&A

 Q1. What is the anatomical level to ddx upper and lower GI bleed?

  • at the duodenal-jejunal junction at the ligament of treitz
  • UGIB are bleeding proximal to ligament of trietz
  • LGIB can also cause from bleeding of small bowel, 
    • those bleeding distal to the ligament of treitz can consider as lower GI bleed


Q2. What are your aims in assessment for a patient with UGIB?

  • to assess if patient is stable
  • if they are in active bleeding
  • is it variceal or non variceal bleed

Q2. How to access the stability of the patient?

  • vital signs
  • mental status
  • urine output. 
all these could help chart the grade of shock clinically - especially Heart Rate !

- if you notice from the table below. 

  • the heart rate could already classify the type of shock into class I and class II and it also shows us "THERE is BLEEDING" 
  • BP came 2nd as when we realise BP drop, shock is already grade 3. 
    • and blood loss has already reached at least 1.5L
    • if grade 2 systolic pressure is still normal and diastolic is low : 



Q3.  How do we access if they are still actively bleeding?

  • colour of hemetemesis
    • fresh blood
    • coffee ground colour
  • amount of hemetemesis
    • large?
** anemic Sx is not enough to diagnose if they are still having active bleed. as acute bleed will cause collapse first even before they have the symptoms. 

Q3a. If patient has history of melena, is it usually active bleed or already stopped?

  • Yes, usually it is active and has maroon colour, also called fresh melena 
  • Blood is irritative to gut, they either comes out from the mouth or the anus. 
    • opposite to fresh melena is old melena or stale melena
  • Old melena: black is colour, and towards formed stool. 




Q4. Some of the black stool presentation still could be active bleed, what type of presentation we can see in this type of patient?

  • large amount of black stool and watery
  • also called watery melenic stool 
    •  patient family/ Staff nurse can have complain of patient changing diapers multiple times however soaked. although it is not red, still considered active bleed. 
    • can happen in both UGIB and LGIB
Rule out UGIB first as 80% of PR bleed is from upper GI, 20% from LGIB

  •  Despite resuscitation, patient still has persistent tachycardia


Q5. How to access the source of bleeding, variceal vs non variceal?

  • Patient's History
    • variceal bleed: large amount of fresh hematemesis, has copious blood
      • usually described as bowls of blood or cups of blood. 
      • massive bleeding usually came from varices
      • however it is usually PAINLESS
      • causes:
        • any history of liver disease: jaundice, stigmata of liver disease, portal hypertension secondary to chronic liver disease, hep B
        • high risk behaviour
    • non variceal bleed: cause is usually peptic ulcer disease (PUD)
      • pain 
      • have hx of epigastric pain
      • cause: 
        • long standing NSAIDS usage/ steroids usage
        • hx of hyperuraemia (CKD)

Why do we need to differentiate variceal and non variceal bleed?

  • variceal bleed: need urgent OGDS (no active bleed)
  • non variceal still can wait and scope within 24 hours 


Q1: if patient is suspected with variceal bleed, he has active bleeding and continuously vomit blood. 
his vitals are not stable. Outline your acute management


  • ABC
  • A: If airway compromise to intubate , to secure airway
  • insert 2 large bore IV cannula
  • blood taking(FBC+coag) + GXM + safe O blood (preferably cross match blood)
  • fluid resus with crystalloid then add colloid while waiting for blood and blood products
    • can refer to the fluid and electrolyte QnA link here
  • to arrest and stop the bleeding
    • inserting sengstaken tube
  • vital signs monitoring
THEN SEND pt to ICU once he is stable

since patient having active bleed, he is not fit for OGDS, as we couldnt view the source of bleeding clearly. the active bleed will obscure the lens of OGDS
** differences between UGIB 2 to PUD , pt who has variceal bleed, you will need urgent OGDS as long as they have no active bleed. those with UGIB 2 to PUD we still can wait and scope within 24 hours. 

Q1a: what do we do next once patient in ICU- medical therapy?

  • start IVI octreotide
    • on pt with and without active bleed. 
  • replace blood loss and correct coagulopathy
    •  FFP
    • start antifibrinolytic agent eg: IV tranxenemic acid 500mg TDS
    • transfused if needed
  • start PPI infusion
    • reduces mortality in variceal bleed
    • due to reduce in acid in stomach, it also lower down incidence of rebleeding 
  • start antibiotic
    • as pt usually immunocompromised due to hepatic failure
    • in various study shows abx may reduce mortality rate in bleeding pt

  • beta blocker
    • usually given after patient recover
    • as might cause low systemic blood pressure in acute setting

Q2: how does octreotide help with the bleeding?

  • it inhibits release of glucagon 
  • glucagon is splanchnic vasodilator
  • when splanchnic circulation is reduced it will cause reduce in portal pressure

Q3: how long can we place the sengstaken tube?

  • 48hours
  • longest: 72 hours/3days
  • as it is just a temporary solution to the problem. 
  • however have to deflate the esophageal balloon intermittently every 2 hours
    • important to reinfate to prevent hypoxia and necrosis of compressed tissue
    • and esophageal perforation is fatal cause it is in the thoracic cavity if perforated. 

Q4: what is the PPI infusion that is given

  • IVI pantoprazole 80mg stat then 8mg/hr
  • GOLD STANDARD to give the regime stated above. 
  • if no pantoprazole, omeprazole is also accepted

Q4b: why PPI is important and superior as medical treatment?

  • proton pump inhibitor, blocks the H+/K+ ATPase
  • inhibition is irreversible. 
  • therefore causes profound and prolonged reduction of acid production

CPG malaysia for UGIB mx



do review back the summary done last time and come test yourself here!'https://yu4med.blogspot.com/2021/04/ugib.html







Friday, April 9, 2021

UGIB

UGIB : Upper Gastrointestinal Bleeding

Intro:

1. Types of UGIB 

2. pathogenesis 

3. Signs and symptoms to look out for

4. Investigations

5. Management

6. Follow up plans

* scores used: Rockfall score, Child pugh score

Types: varieal and non variceal

1. variceal: 

    • ulcer in esophagus wall caused by increase pressure in vein
    • closely related to portal hypertension - in pt with cirrhosis/ hepB
    • rupture will cause death and massive bleeding

2. non variceal 

  • are ulcers not in esophagus, can be in stomach or any other places
  • non variceal bleeding ties closely related to the portal tension. 

* portal tension(normal : 5-10, high>12mmHg)

    - if portal tension is > IJC tension. it will cause back flow of blood into the vessel lining on the stomach or esophageal, which could lead to rupture of the vessels. 


Pathogenesis

- it is important to understand the pathogenesis before we understnad the disease. 

- the table below summarise common scenarios that we can see in ward . 



Signs and symptoms 

symptoms: coughing blood, melenic stools, epigastric pain after food relieve by vomiting: PU, absent: variceal bleed, epigastric pain relieve by food : DU

signs: pallor, weak, lethargic, anemic: dizziness, palpitation , syncope





Investigations (Ix):

  • FBC: infection, anemia, thrombocytopenia: hypersplenism in liver disease
    • -plt count aim at >50x10/L
  • RFT: electrolyte imbalance/ AKI, 
    • urea increase when absorb products of luminal blood which are supposed to be metabolised in the liver . 
    • normal creat, with increase urea= severe bleeding
  • LFT: AST, ALP, ALT any disoriented, 
  • coag: anticoagulated pt
    • is pt on anti coagulants?
    • any warfarin used?


  • infective screening: 
    • hep B , HbsAg- active or not
  • OGDS: any bleeding in the esophagus - golden standard
    • - forrest grading I(active  bleeding), IIa(oozing)-c(black spot), III(clean base)
  • H.pylori:
    • - rapid urease test - to confirm if any h.pylori activity
    • - serology/ab testing
    • - urea breath test: after treatment to confirm eradication: stop abx 4week, stop PPI 2wk prior


ROCKALL score

  • < 3 good prognosis, >5 high mortality, need icu care



MANAGEMENT (Mx): 

S1. KNBM

  • prepare 2 large bore Iv cannula- green

initial clinical assessment: 

  • - severe bleeding: shock, tachy, low bp, cold and wet, agitated, oliguria, mental status
  • - comorbidities: cardiorespi, cerebrovascular, renal disease
  • - seek evidence of CLD (variceal bleed): jaundice, hepatosplenomegaly, ascites

   child pugh score

  •         - encephalopathy, alb<2.8, INR>2, Ascites, bil >3 . if score>10 child pugh C



S2. check vital signs: BP, HR, RR

S3. Resus NS crystalloid solution infusion, send for GSH to prepare for blood transfusion(pc and FFP)

+ oxygen

+ whold drugs that causes bleeding: aspirin, warfarin

- indication for blood transfusion: BP<100, HR>110, Hb<8, postural hypotension, chest pain with Hb<10

S4. IVI pantoprazole

- why PPI?

    -irreversibly bing to the H/K ATPase of gastric parietal cells, which helps decrease the H+ secretion into gastric lumen, increase gastric pH (alkali), can slower the PU disease

    - gastric acid prevents cessation of bleeding from PU by inhibition of clot formation, promotion of clot lysis and ongoing tissue damage. thats why PPI and H2 antagonist needed to inhibit gastric acid formation. 

    - PPI helps reduce the number of active bleeding ulcer and increase the number of clean based ulcers. it also helps reducing th need for endoscopic intervention and hospitalization.


S5. other meds

if suspect variceal bleeding: octreotide (somatostatin)/ terlipressin to prevent rebleeding

Octreotide reduces portal and variceal pressures as well as splanchnic and portal-systemic collateral blood flows [2]. It also prevents postprandial splanchnic hyperemia in patients with portal hypertension [3] and lowers gastric mucosal blood flow in normal and portal hypertensive stomachs

- abx prophylaxis- for 7d: norfloxacin, ciproflocaxin, cephalosporin. 

S6. ideally to get endoscopy within 24hrs. OGDS ligation on the bleeding site. 

S7. H. pylori eradication 7d course: PPI, amoxicillin/metronidazole, clarithromycin


Follow up(F/U) plans

- readmit and re endoscope 6weeks to rule out malignancy. for h.pylori eradication properly


  • H. pylori eradication

triple therapy: PPI with clarithromycin and amoxicillin /metronidazole for 7d
- if allergy to penicillin replace with bismuth

  • primary prophylaxis

- screening every1-2years

- non selective beta adrenergic antagonist- propanolol, nadolol

    - nitrates

    - blocked beta 1 which cause vaso-constriction and reduce splanchnic blood flow by blocking vasodilation beta 2 receptor


- endoscopic: variceal ligation and injection sclerotherapy

references:

1. https://www.osmosis.org/answers/melena

2. GASTRO cpg malaysia