Sequential follow up after diagnosis and Helicobacter pylori eradication treatment. Endoscopic, histological, and molecular findings
| Follow up after H pylori eradication | Endoscopic pattern1-150 | Histological scoring1-151 | PCR1-152 | H pylori1-154 |
| April 1998 (diagnosis) | I | High grade | Not done | Urease + |
| July 1998 (3 months) | I | 1 | Monoclonal | Negative |
| Oct 1998 (6 months) | N | 0 | Monoclonal | Negative |
| March 1999 (11 months) | CG | 0 | Monoclonal | Negative |
| Dec 1999 (20 months) | CG | 0 | Monoclonal | Negative |
| May 2000 (25 months) | N | 0 | Ponyclonal | Negative |
| Dec 2000 (32 months) | N | 0 | Monoclonal | Negative |
↵1-150 I, infiltrative pattern: mucosa was more or less extensively infiltrated/or the folds were thickened with or without superficial erosive lesions; CG, chronic gastritis pattern: presence of irregular patchy erythematous lesions. Other minor endoscopic changes were accepted as normal (N).2
↵1-151 Histological scoring following the Wotherspoon system.1
↵1-152 PCR (polymerase chain reaction), IgH gene analysis (FR/2/FR3 and LJH/VLJH).2 ,7
↵1-154 H pylori evaluated in histological samples and in the culture of gastric biopsies, and breath test urea13C.