Publication
Increased Risk for Metachronous Gastric Adenocarcinoma Following Gastric MALT Lymphoma-A US Population-Based Study
| dc.contributor.author | Palmela, C | |
| dc.contributor.author | Fonseca, C | |
| dc.contributor.author | Faria, R | |
| dc.contributor.author | Baptista, RB | |
| dc.contributor.author | Ribeiro, S | |
| dc.contributor.author | Ferreira, AO | |
| dc.date.accessioned | 2017-11-14T15:17:51Z | |
| dc.date.available | 2017-11-14T15:17:51Z | |
| dc.date.issued | 2017-06 | |
| dc.description.abstract | Gastric mucosa-associated lymphoid tissue lymphoma (gMALT) and gastric adenocarcinoma (GC) are long-term complications of chronic Helicobacter pylori (HP) gastritis. Treatment of HP infection induces remission in most patients with gMALT. Endoscopic follow-up is not currently endorsed after complete remission. However, the risk of GC in these patients is unclear. OBJECTIVE: The objective of this study is to estimate GC risk in gMALT patients. METHODS: The National Cancer Institute Surveillance, Epidemiology and End Results 13 (SEER) database-Nov 2014 Sub (1992-2012) was used to identify adult patients diagnosed with gMALT between 1992 and 2012. The standardized incidence ratio of second primary GC after a latency period of 12 months was calculated and compared to a reference SEER cohort of identical age, sex and time period. The risk of GC in these patients was also stratified by latency period (five years) and age. RESULTS: We identified 2195 cases of gMALT lymphoma, and 20 (0.91%) of them subsequently developed GC with a relative risk (RR) of 4.32 (95% CI 2.64-6.67) compared to the American population. The median latency time was five years and the risk was maintained afterward (RR 4.92, 95% CI 2.45-8.79). When stratified by age group the risk was highest for the 45-64 group (RR 14.04, 95% CI 5.64-28.93). CONCLUSION: gMALT lymphoma is associated with an increased risk of metachronous gastric adenocarcinoma. The risk is still present after more than five years of follow-up. Further studies may clarify the most adequate follow-up strategy. | pt_PT |
| dc.description.version | info:eu-repo/semantics/publishedVersion | pt_PT |
| dc.identifier.citation | United European Gastroenterol J. 2017 Jun;5(4):473-478 | pt_PT |
| dc.identifier.doi | 10.1177/2050640616671643 | pt_PT |
| dc.identifier.uri | http://hdl.handle.net/10400.17/2803 | |
| dc.language.iso | eng | pt_PT |
| dc.publisher | SAGE Publications | pt_PT |
| dc.subject | Gastric MALT lymphoma | pt_PT |
| dc.subject | Helicobacter pylor | pt_PT |
| dc.subject | Gastric adenocarcinoma | pt_PT |
| dc.subject | Metachronous cancer risk | pt_PT |
| dc.subject | Follow-up studies | pt_PT |
| dc.subject | HDE PED | pt_PT |
| dc.title | Increased Risk for Metachronous Gastric Adenocarcinoma Following Gastric MALT Lymphoma-A US Population-Based Study | pt_PT |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.endPage | 478 | pt_PT |
| oaire.citation.issue | 4 | pt_PT |
| oaire.citation.startPage | 473 | pt_PT |
| oaire.citation.volume | 5 | pt_PT |
| rcaap.rights | openAccess | pt_PT |
| rcaap.type | article | pt_PT |