Page 5 - 53-Peptic ulcer diseases (Loét dạ dày)
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CHAPTER 53  Peptic Ulcer Disease  809


               Dyspeptic upper abdominal symptoms consisting of pain or dis-  management of suspected PUD (Fig. 53.3). The strategies are (1)
             comfort in the upper abdomen are common in clinical practice,   “test-and-treat,” based on a noninvasive diagnosis of Hp infection   53
             accounting for 2% to 5% of visits to family practitioners (see Chap-  and subsequent eradication therapy when Hp is detected, and (2)
             ter 14).  Owing to the high cost and impracticality of subjecting all   empirical antisecretory therapy, usually with a PPI.
                  38
             dyspeptic individuals to prompt endoscopy, 2 other nonendoscopic   Gisbert and Calvet  reviewed the literature and concluded
                                                                                   39
             strategies (besides UGI series, with its inherent lower sensitivity   that the Hp test-and-treat strategy will cure most cases of PUD
             and specificity for PUD) have been proposed as an initial step in the   and prevent most cases of gastroduodenal disease. A small pro-
                                                                  portion of patients with Hp-related functional dyspepsia would
                                                                  also improve in their symptoms. The test-and-treat strategy has

               BOX 53�1   Alarm Features in Patients With UGI Symptoms*  been compared with endoscopy-directed diagnosis in 8 random-
                                                                  ized controlled trials (RCTs). These trials differed in how Hp was
               Age older than 55 years with new-onset dyspepsia   diagnosed, and the upper age cutoff varied from 45 to 55 years. In
               Family history of UGI cancer                       some studies, serology was used for diagnosis of infection, which
               GI bleeding, acute or chronic, including unexplained iron deficiency  is less specific than  C urea breath testing (see Chapter 52). The
                                                                                13
               Jaundice                                           background Hp prevalence in the study populations ranged from
               Left supraclavicular lymphadenopathy (Virchow node)  23% to 53%. After a 12-month follow-up, the prevalence of dys-
               Palpable abdominal mass                            peptic symptoms was similar in the 2 groups. In 7 of the 8 trials,
               Persistent vomiting                                cost data were reported, and the test-and-treat strategy was less
               Progressive dysphagia                              expensive  because  of  the  many  endoscopies  avoided.  Ford  and
               Unintended weight loss                             colleagues performed a meta-analysis of 5 RCTs involving 1924
                                                                  patients and found a slight benefit at 12 months of prompt EGD
               *These features should prompt EGD and often other testing to establish a   on dyspeptic symptoms over test-and-treat (risk ratio, 0.95; 95%
                definitive diagnosis (see Chapter 14).            confidence index [CI], 0.92 to 0.99), possibly because a normal
                                                                  EGD may have had a reassuring effect in some patients. 40





                                                          Adult dyspepsia patient
                                      ≥ 60 years of age                          < 60 years of age




                                                                                           Hp
                                    Endoscopy
                                                                                       test and treat
                        Organic               Normal                          Positive            Negative
                        pathology



                       Manage according     Manage according to          Hp       No response
                      to relevant guideline     Chapter 14            eradication                 PPI


                                                             Response          Response             No
                                                                                                    Response


                                                                                Response         TCA
                                                               Success                         or prokinetic


                                                                                   Response
                                                                                                    No
                                                                                                    Response


                                                                                                Consider
                                                                                              psychotherapy




                          Fig. 53.3   ACG and Canadian Association of Gastroenterology (CAG) guideline algorithm for the management
                          of undiagnosed PUD. This is also the current management approach for patients with suspected PUD.  TCA,
                          tricyclic antidepressant. (Adapted from Moayyedi P, Lacy BE, Andrews CN, et  al. ACG and CAG clinical guide-
                          line: management of dyspepsia. Am J Gastroenterol 2017; 112:988-1013.)
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