LOGO Presented By: Dr.Faris Al Kahtani Medical Student 2009 This lecture was conducted during the Nephrology Unit Grand Ground by Medical Student under.

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Presentation transcript:

LOGO Presented By: Dr.Faris Al Kahtani Medical Student 2009 This lecture was conducted during the Nephrology Unit Grand Ground by Medical Student under Nephrology Division under the supervision and administration of Prof. Jamal Al Wakeel, Head of Nephrology Unit, Department of Medicine and Dr. Abdulkareem Al Suwaida, Chairman of Department of Medicine and Nephrology Consultant. Nephrology Division is not responsible for the content of the presentation for it is intended for learning and /or education purpose only.

LOGO switch off your mobiles please

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Company Logo Peptic Ulcer Definition A circumscribed ulceration of the gastrointestinal mucosa occurring in areas exposed to acid and pepsin and most often caused by Helicobacter pylori infection.

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Company Logo Etiology  A peptic ulcer is a mucosal break, 3 mm or greater, that can involve the stomach or duodenum.  The most important contributing factors are H pylori, NSAIDs, acid, and pepsin.  Additional aggressive factors include smoking, ethanol, bile acids, aspirin, steroids, and stress.  Important protective factors are mucus, bicarbonate, mucosal blood flow, prostaglandins, hydrophobic layer, and epithelial renewal.  When an imbalance occurs, PUD might develop.

Company Logo Helicobacter pylori

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Company Logo Duodenal Ulcers  duodenal sites are 4x as common as gastric sites  most common in middle age  peak years  Male to female ratio—4:1  Genetic link: 3x more common in 1 st degree relatives  more common in patients with blood group O  associated with increased serum pepsinogen  H. pylori infection common  up to 95%  smoking is twice as common

Company Logo Gastric Ulcers  common in late middle age  incidence increases with age  Male to female ratio—2:1  More common in patients with blood group A  Use of NSAIDs - associated with a three- to four-fold increase in risk of gastric ulcer  Less related to H. pylori than duodenal ulcers – about 80%  % of patients with a gastric ulcer have a concomitant duodenal ulcer

Company Logo Comparing Duodenal and Gastric Ulcers

Company Logo Peptic Ulcers: Gastric & Dudodenal

Company Logo By History:-  Pain—“aching”, or “burning”  Duodenal ulcers: occurs 1-3 hours after a meal and may awaken patient from sleep. Pain is relieved by food, antacids, or vomiting.  Gastric ulcers: food may exacerbate the pain while vomiting relieves it.  Nausea, vomiting, belching, dyspepsia, bloating, chest discomfort, anorexia, hematemesis, &/or melena may also occur.  nausea, vomiting, & weight loss more common with Gastric ulcers

Company Logo By Examination:-  Epigastric tenderness.  Guaic-positive stool resulting from occult blood loss  Succussion splash resulting from scaring or edema due to partial or complete gastric outlet obstruction :  A succussion splash describes the sound obtained by shaking an individual who has free fluid and air or gas in a hollow organ or body cavity.  Usually elicited to confirm intestinal or pyloric obstruction.  Done by gently shaking the abdomen by holding either side of the pelvis. A positive test occurs when a splashing noise is heard, either with or without a stethoscope. It is not valid if the pt has eaten or drunk fluid within the last three hours.

Company Logo Diagnostic Plan  Stool for fecal occult blood.  Labs: CBC (R/O bleeding), liver function test, amylase, and lipase.  Upper GI Endoscopy: Any pt >50 yo with new onset of symptoms or those with alarm markings including anemia, weight loss, or GI bleeding.  Preferred diagnostic test b/c its highly sensitive for dx of ulcers and allows for biopsy to rule out malignancy and rapid urease tests for testing for H. Pylori.

Company Logo  H. Pylori can be diagnosed by urea breath test, blood test, stool antigen assays, & rapid urease test on a biopsy sample :  Rapid urease test is a rapid test for diagnosis of Helicobacter pylori.The basis of the test is the ability of H. pylori to secrete the urease enzyme, which catalyzes the conversion of urea to ammonia and bicarbonate.Helicobacter pyloriureaseureaammoniabicarbonate  urea breath test : Patients swallow urea labelled with an uncommon isotope, either radioactive carbon-14 or non-radioactive carbon-13. In the subsequent minutes, the detection of isotope-labelled carbon dioxide in exhaled breath indicates that the urea was split; this indicates that urease (the enzyme that H. pylori uses to metabolize urea) is present in the stomach, and hence that H. pylori bacteria are present.ureaisotope radioactivecarbon-14carbon-13carbon dioxideureaseenzymemetabolizestomach

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Company Logo Treatment Plan: H. Pylori  Medications: Triple therapy for 14 days is considered the treatment of choice.  Proton Pump Inhibitor + clarithromycin and amoxicillin Omeprazole (Prilosec): 20 mg PO bid for 14 d or Lansoprazole (Prevacid): 30 mg PO bid for 14 d or Rabeprazole (Aciphex): 20 mg PO bid for 14 d or Esomeprazole (Nexium): 40 mg PO qd for 14 d plus Clarithromycin (Biaxin): 500 mg PO bid for 14 and Amoxicillin (Amoxil): 1 g PO bid for 14 d Can substitute Flagyl 500 mg PO bid for 14 d if allergic to PCN  In the setting of an active ulcer, continue qd proton pump inhibitor therapy for additional 2 weeks.  Goal: complete elimination of H. Pylori. Once achieved reinfection rates are low. Compliance!

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Company Logo Treatment Plan  Medications—treat with Proton Pump Inhibitors or H2 receptor antagonists to assist ulcer healing  H2: Tagament, Pepcid, Axid, or Zantac for up to 8 weeks  PPI: Prilosec, Prevacid, Nexium, Protonix, or Aciphex for 4-8 weeks.

Company Logo Lifestyle Changes  Discontinue NSAIDs and use Acetaminophen for pain control if possible.  Acid suppression--Antacids  Smoking cessation  No dietary restrictions unless certain foods are associated with problems.  Alcohol in moderation  Men under 65: 2 drinks/day  Men over 65 and all women: 1 drink/day  Stress reduction

Company Logo Prevention  Consider prophylactic therapy for the following patients:  Pts with NSAID-induced ulcers who require daily NSAID therapy.  Pts older than 60 years.  Pts with a history of PUD or a complication such as GI bleeding.  Pts taking steroids or anticoagulants or patients with significant comorbid medical illnesses.  Prophylactic regimens that have been shown to dramatically reduce the risk of NSAID-induced gastric and duodenal ulcers include the use of a prostaglandin analogue or a proton pump inhibitor :  Misoprostol (Cytotec) mg PO 4 times per day.  Omeprazole (Prilosec) mg PO every day.  Lansoprazole (Prevacid) mg PO every day.

Company Logo Complications  Perforation & Penetration—into pancreas, liver and retroperitoneal space  Peritonitis  Bowel obstruction, Gastric outflow obstruction, & Pyloric stenosis  Bleeding--occurs in 25% to 33% of cases and accounts for 25% of ulcer deaths.  Gastric CA

Company Logo Surgery  People who do not respond to medication, or who develop complications:  Vagotomy - cutting the vagus nerve to interrupt messages sent from the brain to the stomach to reducing acid secretion.  Antrectomy - remove the lower part of the stomach (antrum), which produces a hormone that stimulates the stomach to secrete digestive juices. A vagotomy is usually done in conjunction with an antrectomy.  Pyloroplasty - the opening into the duodenum and small intestine (pylorus) are enlarged, enabling contents to pass more freely from the stomach. May be performed along with a vagotomy.

Company Logo Evaluation/Follow- up/Referrals  H. Pylori Positive: retesting for Tx efficacy Urea breath test—no sooner than 4 weeks after therapy to avoid false negative results Stool antigen test—an 8 week interval must be allowed after therapy.  H. Pylori Negative: evaluate symptoms after one month. Patients who are controlled should cont. 2-4 more weeks.  If symptoms persist then refer to specialist for additional diagnostic testing.

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