Eso Varices/Mallory Weiss Flashcards

(33 cards)

1
Q
A
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2
Q

Portal Hypertension

general and common causes

caput medusae
A

An increase in the pressure within theportalvein
Common causes:
Cirrhosis due to chronic viral hepatitis C
Alcohol-induced liver disease

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3
Q

Portal Hypertension

Clin man

A

Manifestations:
Esophageal varices
Caput medusae
Hypersplenism = over active spleen
Anemia
Neutropenia
Thrombocytopenia
Marked ascites
Hemorrhoids

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4
Q

Portal HTN

A
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5
Q

Portal HTN

Varix
Most common sites

A

Abnormally dilated vessel with a tortuous course
Usually occurs in the venous system, but may also occur in arterial or lymphatic vessels

Most common sites for varix formation:
Distal esophagus
Proximal stomach

Umbilicus
Rectum
Retroperitoneum

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6
Q

Esophageal varices

general

A

Dilated submucosal veins in the distal esophagus connecting to the portal and systemic circulation
Most dangerous varices due to the risk of rupture → massive upper gastrointestinal bleeding
PAINLESS bleeding

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7
Q

Esophageal varices

Risk factors for bleeding

A

Risk factors for bleeding:
Size of the varices
Presence of red whale markings (longitudinal dilated venules on the varix surface)
Severity of liver disease
Active alcohol abuse

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8
Q

Variceal Bleeding

S/Sx of shock

A

Painless, upper GI bleeding
Acute, subacute, or chronic
Site of bleeding:
Distal esophagus – most often
Gastric fundus – less often

Acute massive bleed → shock
Systolic BP < 100 mm Hg
Pulse rate > 100 bpm, weak
Pale
Diaphoretic
Restless
Thirsty

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9
Q

Esophageal varices bleeding

Diagnostics

A

Endoscopy
Test of choice for esophageal and gastric varices

Evaluation for coagulopathy
High association of varices and hepatic disease
PT/INR and PTT

Additional tests
CBC – anemia and thrombocytopenia
Liver tests – AST, ALT, Alkaline phosphatase, bilirubin

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10
Q

esophageal varicose bleed

non pharm Tx

A

40% of variceal bleeds stop spontaneously
Bleeding varices - EMERGENCY

Airway management - Intubation
2 large-bore IVs
Fluid resuscitation
Blood transfusion
Type and cross-match 6 units of packed red blood cells
Correction of coagulopathy
1-2 units of fresh frozen plasma
Platelet transfusion (>50,000 mcL)

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11
Q

esophageal varicose bleed

Pharm Tx and intervention

A

Antibiotics
3rd generation cephalosporins (Rocephin) IV to prevent bacteremia and sepsis

IV octreotide
Synthetic analog of somatostatin that reduces portal pressure

Endoscopic banding or sclerotherapy
Performed when the patient is hemodynamically stable

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12
Q

Esophageal varicosity

prognosis
Chronic maintenance

A

Mortality depends primarily on the severity of the associated liver disease
20% mortality at 6 weeks
Recurrence rate of variceal bleeding is 50-75% within 1-2 years
β-blockers to ↓ recurrent bleeding- for chronic maintenance not acute Tx

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13
Q

Mallory-Weiss Syndrome

general

A

Syndrome characterized by esophageal bleeding caused by a longitudinal laceration(s) at or near the gastroesophageal junction as a result of vomiting or retching
Repeated episodes (typical presentation)
Single episode
3x more common in men
Accounts for 5-10% of upper gastrointestinal bleeding

Superficial bleeds

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14
Q

Mallory Weiss Syndrom

Patho

A

Pathogenesis:
Rapid ↑ in intraabdominal pressure and intragastric pressure
This pressure overcomes the lower esophageal sphincter pressure so the gastric contents are released into theesophagus
Normal autonomic reflexes cause theupper esophageal sphincter (UES) to relax → vomiting

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15
Q

Mallory Weiss

RF

A

Alcohol use disorder
Seen in 40-80% of patients; may coexist with esophageal varices

Events that create a sudden rise in thepressure gradient across thegastroesophageal junction:
Forceful or recurrent retching
Vomiting
Violent coughingspasms
Blunt abdominal trauma

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16
Q

Mallory Weiss

Clin man

A

Acute onset hematemesis
Presenting symptom in all patients
Variable amount
Streaks of blood → copious amount of fresh red blood
Severe bleeding
Shock (20% of patients)
Postural hypotension (45% of patients)
Normally preceded by one or more episodes of non-bloody emesis, retching, or coughing
Epigastric or back pain
Melena
Seen later in a patient Dx with a tear
May be light-headedness, dizziness, syncopal
Secondary to dehydration from underlying vomiting

typically bright red

17
Q

mallory weiss

Dx

A

Clinical suspicion with a history of hematemesis occurring after episode(s) of non-bloody vomiting

Esophagogastroduodenoscopy (EGD) Diagnostic study of choice for esophageal tears

Allows for visual inspection of the esophagus, stomach, and duodenum
Minimal bleeding and the patient is stable, EGD may be deferred, but the patient should be referred to GI
Severe bleeding with hemodynamic instability – stability must be obtained prior to performing the endoscopy
After 96 hours, most tears are well-healed and difficult to visualize

only do EGD on STABLE pt

18
Q

mallory weiss tear

Predictive Factors for Recurrent Bleeding

A

Initial presentation of shock
History of liver cirrhosis
Decreased hemoglobin requiring a blood transfusion
Low platelet count
Active bleeding noted at the time of endoscopy

19
Q

mallory weiss

20
Q

mallory weiss

non pharm Tx

A

Most episodes of bleeding stop spontaneously

Severe bleeding (10% of patients)
Close monitoring of vital signs
Place 2 large-bore IVs
Fluid resuscitation
Transfusion of PRBCs, if needed

21
Q

mallory weiss

pharm Tx

A

Pharmacotherapy
IV proton pump inhibitor (PPI) - used for acidsuppression

22
Q

mallory weiss

Labs

A

Labs
CBC and coagulation assessment (PT/INR, PTT)
Initially NPO; bleeding resolved → clear liquids

23
Q

mallory weiss

Endoscopic hemostasis

A

Used for patients who are hemodynamically unstable
Dilute epinephrine injections made 3-5 mm apart circumferentially around the site of bleeding
Electrocautery
Esophageal clips
Band ligation

24
Q

mallory weiss

Tx for difficult to treat tears

A

Arteriography with embolization

Surgical repair – rarely needed

25
# Esophageal Perforation general
Spontaneous transmural perforation of the esophagus exposing the mediastinum to GI contents Iatrogenic perforation (85-90%) Endoscopic procedures or other instrumentation Penetrating injuries (gunshot wound > blunt injuries Foreign body ingestion Spontaneous perforation/rupture (**Boerhaave syndrome**) Most lethal perforation of the GI tract Mortality 30% → subsequent infection
26
# esophageal perf Best outcomes result from
early diagnosis and definite surgical management within 12 hours of rupture
27
# esophageal perf patho
Depends on the underlying cause Boerhaave syndrome: Sudden increase in intraluminal pressure in the esophagus, coupled with negative intrathoracic pressure, can lead to rupture Most common site of rupture is the lower posterolateral third of the esophagus
28
# esophageal perf
-Vomiting -Severe retrosternal chest pain or epigastric pain -Subcutaneous emphysema (SCE) Occurs when gas or air (generally from the chest cavity) travels under the skin Usually occurs on the chest, neck, and face
29
# esophageal perf other Sx aside from Macklers
Hematemesis: if present, diagnosis is often mistaken for Mallory-Weiss tear Chest pain Dysphagia Fever Shock
30
# esophageal perf Imaging
Chest x-ray Suggests the diagnosis Pneumomediastinum Subcutaneous emphysema Contrast esophagography (Gastrograffin) **Confirms the diagnosis** Contrast leakage from the esophagus to the mediastinum Length 0f the perforation and its location CT scan of the chest Performed when: Chest x-ray or esophagography is inconclusive Patient is unstable
31
# esophageal perf ABCDE survey
Airway: Ensure the patency of the airway Breathing: Ensure proper ventilation is occurring Circulation: Measure blood pressure and pulse, and administer IV fluids Disability: Perform basic neurologic examination Exposure: Search for injuries
32
# esophageal perf Tx pharm and nonpahrm
ABCDE survey Close monitoring of vital signs Intravenous volume resuscitation NPO IV proton pump inhibitor (PPI) Administration of broad-spectrum antibiotics Prompt endoscopic stenting and/or surgical intervention
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