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Medina, Kristianne
Medina, Sakura Cher
Mejino, Carla
Melgarejo, Ivy
Mendoza Alvin
Mendoza, Diana
Mendoza, Donn Paolo
Upper GI Bleeding due to Peptic Ulcer Disease
Group AMendoza, Gracielle
Mindanao, Ace Malvin
Miranda, Maria Carmela
Molina, Ramon Miguel
Monzon, Jerry West
Morales, Arriane
Musni, Merwen Mitchell
Peptic Ulcer Disease
Definition and Epidemiology
Peptic Ulcer Diseasea chronic, recurrent disorder that is characterized by
an ulcer (defined as mucosal erosions equal to or greater than 0.5 cm) of an area of the gastrointestinal tract.
most common sites of this disease are the duodenum (duodenal ulcer) and the stomach (gastric ulcer).
generally exacerbated by fasting and improved with meals
Harrison’s Principle of Internal Medicine, 17th ed
Peptic Ulcer DiseaseDuodenal Ulcer
Ulcers often occur in the first portion of duodenum
Malignancy rareOccurs 90 mins-3 hrs
after eatingUsually awakens patient
at nightRelieved by food intakeRelieved by antacids
Gastric UlcerDistal to the junction
between antrum and acid secretory mucosa
Occurs later in life than DU
Peak incidence >60 y.o.Males > femalesLess common than DUAggravated by food
intakeRelieved by antacids
Harrison’s Principle of Internal Medicine, 17th ed
Epidemiology
Gastric Ulcer• Tend to occur later in life
– 6th decade as the peak incidence.
• About 75% with gastric ulcers harb or H. pylori.
• There is a higher likelihood to be silent and presenting after complication develops.
Harrison’s Principle of Internal Medicine, 17th ed http://www.doh.gov.ph/faqs/peptic_ulcer
Duodenal Ulcer
• Estimated to occur in 6-15% of the population.
• More than 90% of patients with duodenal ulcers and about 75% with gastric ulcers harbor H. pylori which is responsible for frequent relapses of ulcers.
• Death rates, need for surgery and physician visits decrease by >50% over the past 30 years.
EpidemiologyFrequency
United Statesone-year point prevalence is 1.8%lifetime prevalence is approximately 10% affects approximately 4.5 million people annually.Internationalvariable and determined primarily by association
with the major causes of PUD: H pylori and NSAIDs.
Harrison’s Principle of Internal Medicine, 17th ed
EpidemiologyMortality/Morbidity
decreased by >50% over past 30 years1 death per 100,000 caseshospitalization rate is approximately 30 patients per
100,000 cases.
http://emedicine.medscape.com/article/181753
Harrison’s Principle of Internal Medicine, 17th ed
EpidemiologySex
prevalence has shifted from predominance in males to similar occurrences for both sexes.
lifetime prevalence is approximately 11-14% for men and 8-11% for women.
Ageduodenal ulcer typically affects persons 25-55 years of
age while the peak incidence of gastric ulcer occurs around 55-65 years of age
http://www.doh.gov.ph/faqs/peptic_ulcer
http://emedicine.medscape.com/article/181753
EpidemiologyRisk Factors for PUD
intake of acidic drinks (carbonated drinks, juices,alcohol)
intake of NSAIDSpresence of Helicobacter Pylorismokinggenetic Influencestresshypersecretory states
http://www.doh.gov.ph/faqs/peptic_ulcerhttp://emedicine.medscape.com/article/181753
EpidemiologyRisk Factors for H. pylori infection
- Poor socioeconomic status- Less education on proper sanitation- Birth and residence in developing countries- Domestic crowding- Unsanitary living conditions- Unclean food and water- Exposure to gastric contents of an infected individual
Harrison’s Principle of Internal Medicine, 17th ed
PathoPhysiology
Gastric Bleeding due to
Peptic Ulcer Disease
Peptic ulcers are the most common cause of upper GI bleeding
Aprroximately 50% of cases
an increasing proportion is due to nonsteroidal anti-inflammatory drugs (NSAIDs), with the prevalence of Helicobacter pylori decreasing.
Harrison’s Principles of Internal Medicine 17th ed.
Gastroduodenal Mucosal Defense
Harrison’s Principles of Internal Medicine 17th ed.
Causes of Mucosal DamageCigarette SmokingPsychological StressGenetic PredispositionDiet
Increased intake of:AlcoholCaffeine
Harrison’s Principles of Internal Medicine 17th ed.
H. pylori-induced Peptic Ulcer Disease• Risk-factors of H. pylori infection
– Poor socioeconomic status– Less education
• Mode of Transmission– Oral-oral– Fecal-oral
• Factors Affecting Infection– Bacteria’s motility– Ability to produce urease
Harrison’s Principles of Internal Medicine 17th ed.
Peptic Ulcer Disease(due to Helicobacter pylori)
Bacterial Factors• Structure
S-shaped rod with multiple flagella in one pole
• Adhesins• Porins• Enzymes: Urease,
Protease, Phospholipase
Host Factors• Duration• Location• Inflammatory
Response• Genetics ??
Harrison’s Principles of Internal Medicine 17th ed.
Recruitment of neutrophils, lymphocytes, macrophages & plasma cells
Release of Prostaglandin, Substance P, Histamine
Apoptosis(T cells & IFN gamma)
Inflammatory Response to H. Pylori
ULCER
H. Pylori binds to class II MHC on gastric epithelial cells
Cytokine Production• IL-1 alpha/ Beta• IL-2• IL-6• IL-8• TNF alpha• IFN gamma
Epithelial cell injury
Production of O2 or N2 species(neutrophils)
Harrison’s Principles of Internal Medicine 17th ed.
ULCER
Gastrointestinal bleeding
Clinical Presentation
Upper GI Bleeding due to PUD
Peptic Ulcer DiseaseAbdominal/Epigastric PainCommon to many GI diseasesPoor predictive valueBurning or gnawing discomfortIll-defined aching sensation
Harrison’s Principle of Internal Medicine, 17th ed
Epigastric Pain
Gastric Ulcer Duodenal Ulcer
Precipitated by foodUsually accompanied
by nausea and weight loss
90 minutes to 3 hours after a meal
Frequently relieved by antacids or food
Awakes the patient from sleep (12 midnight to 3am)
Harrison’s Principle of Internal Medicine, 17th ed
Epigastric PainPossible Causes
Acid-induced sensitivity to bile acids and pepsinAltered gastroduodenal motility
Harrison’s Principle of Internal Medicine, 17th ed
Symptoms PUD complicationsUpper GI Bleeding
Tarry stoolsCoffee-ground emesis
Harrison’s Principle of Internal Medicine, 17th ed
PE FindingsPeptic Ulcer DiseaseEpigastric Tenderness
Most frequent finding of Peptic Ulcer
Findings indicative of PUD complications:TachycardiaOrthostasisAnemia
Harrison’s Principle of Internal Medicine, 17th ed
Clinical PresentationOur Patient, O.L.
Vague epigastric discomfort
Dizziness & cold clammy sweats
Weight loss (10 kg) for the past 6 months
Peptic Ulcer Disease
Abdominal/epigastric pain (burning sensation, ill- defined, aching sensation)
Vomiting of undigested food
Nausea
Weight loss (gastric outlet obstruction as complication)
Clinical PresentationOur Patient
Coffee ground vomitusMelena (DRE- marroon
colored stools)
Orthostatic hypotension100/60 when sitting120/80 when supine
Tachycardia (PR- 105/min)
Pale palpebral conjuctiva
Upper GI Bleeding due to Peptic Ulcer Disease
Ground Coffee emesisTarry Stools
(complication)
Orthostasis
Tachycardia
Anemia Epigastric tenderness
Diagnostic Evaluation
Upper GI Bleeding due to PUD
Barium Studycommonly used as 1st test for documenting an
ulcerSingle-Contrast Barium 80% sensitivityDouble-Contrast Barium 90% sensitivityDecreased sensitivity for ulcers < 0.5 cm,
previous scarring, and post-op patients
Source: Harrison’s Principles of Internal Medicine, 17th ed.
Barium StudyDU appears as a well demarcated craterA benign GU appears as a discrete crater with
radiating mucosal folds from the ulcer marginMalignant ulcers are often associated with > 3
cm ulcers or those associated with a mass
Source: Harrison’s Principles of Internal Medicine, 17th ed.
Barium Study
A double-contrast radiograph showing a normal stomach
Normal duodenum
Barium Study
Normal duodenum
Barium Study of a benign duodenal ulcer
Barium Study
Normal duodenum Benign Gastric Ulcer
Radiographic Signs of a Benign Gastric Ulcer
•Ulcer Crater•Hampton Line•Ulcer mound•Ulcer Collar
Collection of barium on dependent surface which usually projects beyond anticipated wall of stomach
Collection of barium on dependent surface which usually projects beyond anticipated wall of stomach
1-2 mm thin straight line at neck of ulcer view which represents the thin rim of undermined gastric mucosa
1-2 mm thin straight line at neck of ulcer view which represents the thin rim of undermined gastric mucosa
Smooth, sharply delineated tissue mass surrounding a benign ulcerSmooth, sharply delineated tissue mass surrounding a benign ulcerRadiolucent rim seen in necks of
deep ulcers, representing thicker rim of edematous gastric wall
Radiolucent rim seen in necks of deep ulcers, representing thicker rim of edematous gastric wall
Benign vs Malignant?
ShapeShape
Round, oval, linearIrregular
PenetrationPenetration
Beyond the contour of the stomach
Projects to the lumen
Mucosal FoldsMucosal Folds
Symmetric, radiate to edge of crater
Irregular arrangement, nodular, fused, clumped
Ulcer MoundUlcer Mound
Smooth symmetrical mound of edema with
central crater
Irregular, asymmetric mound of edema with
eccentric crater
EndoscopyMost sensitive and
specific approach Permits direct
visualization of the mucosa
Facilitates photographic documentation of a mucosal defect and tissue biopsy to rule out malignancy or H. pylori
Helpful in identifying lesions too small to detect radiography
For evaluation of atypical radiographic abnormalities
Determines if an ulcer is a source of blood loss
Source: Harrison’s Principles of Internal Medicine, 17th ed.
Esophagogastroduodenoscopy Examination of the lining of the
esophagus, stomach, and upper duodenum.
Performed by passing a flexible endoscope through the mouth
Best method for examining the upper gastrointestinal mucosa
Sensitivity and specificity in diagnosing gastric and duodenal ulcers and cancers
More than 90% Intravenous conscious sedation or
topical pharyngeal anesthesia needed
•Harrison’s Principles of Internal Medicine 17th edition•Bailie, J. (1992). Gastrointestinal Endoscopy, Basic Principles and Practice
•American Family Physician Web site at www.aafp.org/afp
Endoscopy
Normal architecture of the gastric folds Benign duodenal ulcer
www.gastrointestinalatlas.com
Endoscopy
Normal architecture of the gastric foldsBenign gastric ulcer
www.gastrointestinalatlas.com
Endoscopy
www.gastrointestinalatlas.com
Laboratory Tests
Laboratory TestsTests for detection of Helicobacter pylori
Harrison’s Principles of Internal Medicine, 17th ed.Helicobacter pylori and Peptic Ulcer – RA Moore
Invasive (Endoscopy / Biopsy required)
Test Sensitivity Specificity Cost Comments
Rapid urease
90 – 95 98 – 100 +++
False negative with recent use of PPIs, antibiotics, or bismuth compounds
Histology 80 – 90 > 95 ++++
Requires pathology processing and staining; provides histologic information
Culture 60 – 95 100 ++++
Time-consuming, expensive, dependent on experience; allows determination of antibiotic susceptibility
Laboratory TestsTests for detection of Helicobacter pylori
Harrison’s Principles of Internal Medicine, 17th ed.Helicobacter pylori and Peptic Ulcer – RA Moore
Non-Invasive
Test Sensitivity
Specificity
Cost Comments
Serology 85 - 98 90 – 100+
Not useful for early follow-up
Urea breath test
95 - 100 98 – 100 ++useful for early follow-up; false negative with recent therapy
Stool antigen
90 > 90 not established for eradication but promising
Invasive TestsBiopsy Urease Test
one large or two small biopsy specimens are placed into a gel test solution containing urea, a pH color reagent and a bacteriostatic agentIf H pylori is present, bacterial urease converts urea to ammonia
Invasive Tests (Based on Endoscopy Biopsy)
Urea
color change often occurs within minutes but can require up to 24 hours
Ammonia
↑ pHUrease
Urea
Sensitivity Specificity
90 – 95 98 – 100 Biopsy Urease Test
endoscopic diagnostic test of choice
Invasive TestsHistologic Examination
the criterion standard to establish a diagnosis of H pylori infection
Usually performed when the rapid urease test is negative and a high suspicion for H. pylori persists
Invasive Tests (Based on Endoscopy Biopsy)
Histologic Examinationpermitting optimal visualization of H. pyloriyields additional information:
degree and pattern of inflammation
atrophy
metaplasia
dysplasia
detected with hematoxylin & eosin (H&E) stain of gastric tissue, but special stains like a modified Giemsa, Brown-Hopps or silver stain increases the sensitivity
Sensitivity Specificity
80 – 90 > 95
Invasive TestsMicrobiologic Culture
Sensitivity can be limited by prior therapy and contamination with other mucosal bacteria
Culture primarily is used in research studies and is not available routinely for clinical use.
Invasive Tests (Based on Endoscopy Biopsy)
Microbiologic Cultureculture homogenized biopsy on a variety of specialized agar plates at elevated temperatures for at least seven daysthe identity of H. pylori can be confirmed by its typical appearance on Gram’s stain and its positive reactions in oxidase, catalase, and urease testsantibiotic sensitivities can be determined
most specific but may be insensitive because of difficulty with H. pylori
isolation
Sensitivity Specificity
60 – 90 100
Noninvasive Tests13C or 14C Urea Breath Test
the patient drinks a solution containing urea labeled with either the nonradioactive isotope 13C or a minute dose of the radioactive isotope 14C. 13С/12С isotope ratio change which can be detected by mass spectrometry or radioactive counting
13C
13CO2
13CO2
13C-urea
Sensitivity Specificity
95 – 100 98 – 100
Noninvasive TestsStool AntigenTest
simple assay that is dependent on the detection of H. pylori antigens in stoolmore convenient and less expensive than the urea breath test but has been slightly less accurate
Serologymeasuring specific IgG levels in serum by enzyme-linked immunosorbent assay (ELISA) or immunoblot
Sensitivity Specificity
90 >90
Sensitivity Specificity
>80 >90
Noninvasive TestsSerology
USTH: ImmunoComb® Based on a solid phase enzyme immunoassay principle plastic comb with 12 teeth, sensitized at different spots with
reactive materials and an internal control
testtest control
control
HRP Sensitivity
Specificity
96 100
Treatment
Upper GI bleeding due to PUD
GoalsControl upper GI bleedingProvide symptom reliefPromote ulcer healingPrevent recurrence and other complications
Peptic Ulcer Bleeding
Sung, J(2006).Current Management of Peptic Ulcer Bleeding. Journal on Nature Clinical Practice of Gastroenterology and Hepatology. Ret. http://www.medscape.com/viewarticle/521189
Common medical emergency; 300,000 hospital admissions in the US.
Predominant among the elderly80-85% UGI bleeding stops spontaneously 15-20% continues or develops into recurrent
bleeding
Endoscopic Therapy
Sung, J(2006).Current Management of Peptic Ulcer Bleeding. Journal on Nature Clinical Practice of Gastroenterology and Hepatology. Ret. http://www.medscape.com/viewarticle/521189
Injection TherapyInjection with diluted epinephrine (1:10,000)Tamponade effect
Thermal devicesheater probe, monopolar and bipolar
electrocoagulationMechanical devices
Hemoclips
Pharmacologic Mgt for Bleeding PUD
Antisecretory AgentsProton Pump InhibitorsH2 receptor antagonists
Antisecretory AgentsProton Pump Inhibitors
Irreversibly inhibit gastric parietal cell proton pump H+/K+-ATPase.
Inhibit both fasting and meal stimulated secretion Blocks the final common pathway of acid secretion
Omeprazole 20 mg bid 4-8 weeks or IV Omeprazole
Sung, J(2006).Current Management of Peptic Ulcer Bleeding. Journal on Nature Clinical Practice of Gastroenterology and Hepatology. Ret. http://www.medscape.com/viewarticle/521189
Lau et ala high-dose omeprazole infusion (80 mg intravenous
bolus followed by 8 mg per hour for 72 h) or an equivalent of placebo
rate of recurrent bleeding at day 30 was 21.7% and 5.8%, respectively, for those assigned to placebo and omeprazole infusion .reduction in the need for re-treatment and blood transfusiontrend towards fewer surgeries and deaths among those
assigned to omeprazole infusion
Proton Pump Inhibitors for H. Pylori-induced PUD
Mechanisms:Direct antimicrobial properties(minor)Raising intragastric pH
Lowering minimal inhibitory concentrations of antibiotics against H.Pylori
Antisecretory AgentsProton Pump InhibitorsAdverse effects:
Subnormal B12 levels with prolonged therapyIncreased gastric bacterial concentrationIncreases chronic inflammation of gastric bodySmall benign gastric fundic gland polyps
Antisecretory AgentsH2 receptor antagonist
Competitive inhibitors of the action of Histamine at H2 receptors in the parietal cells.
Antisecretory Agents
H2 receptor antagonistsCimetidineFamotidine 20 mg BIDRanitidine 150 mg tab BID
Algorithm on Treatment of UGI Bleeding
Treatment Regimen for H.Pylori Triple Therapy Quadruple Therapy
Omeprazole (20 mg bid)
Omeprazole (20 mg bid)
Omeprazole (20 mg bid)
Clarithromycin (500 mg bid)
Clarithromycin (500 mg bid)
Bismuth Subcitrate (2 tab qid)
Amoxicillin (1 g bid)
Metronidazole (500 mg bid)
Metronidazole (250 mg tid)Tetracycline (500 mg qid)
Other Drugs used for PUD
AntacidsAluminum Hydroxide
Magnesium Hydroxde
Sodium BicarbonateMechanisms:
Reduction of intragastric acidity Stimulation of mucosal prostaglandin production
Promote mucosal defense
Mucosal Protective AgentsBismuth Subcitrate
Selective binding to an ulcer, coating and protecting from acid and pepsin
Inhibition of pepsin activity; stimulation of mucus production; increase PG synthesis
Mucosal Protective AgentsSucralfate
Forms a viscous, tenacious paste that binds to the ulcer or erosion forming a PHYSICAL BARRIER
1 g qid ; 1 hour before meals
Prostaglandin AnalogsMisoprostol
prostaglandin E1 analogue which acts as natural prostaglandin in the body
Only indicated for prevention of NSAID induced gastric ulcers in high risk patients.
causes spontaneous abortion
Side effectsdiarrhea and crampy abdominal pain
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