ABSTRACT
BACKGROUND: We evaluated the microbiota in the stomach of Gastroesophageal Reflux Disease (GERD) patients. We compared Erosive Reflux Disease (ERD) to gastritis and Non-erosive Reflux Disease (NERD) subjects by 16S rRNA approach on gastric biopsy specimens. A total of 197 subjects were included consisting of gastritis (68; 34.52%), ERD (55; 27.92%), and NERD (74; 37.56%). After quality filtering, 187 samples were included for OTU analysis using Qiime2. RESULTS: We observed a significant difference in alpha diversity (Shannon and Simpson indexes were P = 0.0016 and P = 0.017, respectively). A significant decrease in alpha diversity index was observed in NERD with Helicobacter pylori (H. pylori)-positive subjects than in gastritis (Simpson index P = 0.022; Shannon index P = 0.029), indicating a significant influence of H. pylori on the diversity in the stomach despite the diseases. In H. pylori-negative samples, alpha diversity measurement by the abundance coverage estimates (ACE) and Fisher Test revealed that ERD had significantly lower richness than gastritis and NERD groups (P = 0.00012 and P = 0.00043, respectively). Anaerobacillus sp. could only be found in ERD patients by LEFse analysis. CONCLUSIONS: The presence of ERD could alter microbiome diversity. A negative correlation between H. pylori and ERD is shown in this microbiome study but not in NERD.
ABSTRACT
INTRODUCTION: The sellar region is one of the most areas to access in skull base surgery. The endoscopic transsphenoidal approach is a minimally invasive technique developed to create a clear trajectory to the sellar region through the sellar floor. Conversely, this area is surrounded by major intracranial vessels and multiple cranial nerves, hence, every surgical procedure to access this area carries dangerous complications, including hematoma. Remote extradural hematoma is an extremely rare complication following the endoscopic transsphenoidal approach, and the pathogenesis has not been elucidated. CASE PRESENTATION: This study reported a case of 38-years old female suffered from chronic cephalgia and bilateral vision loss since one year ago. Further neuroimaging examination showed solid extra-axial mass, suggesting pituitary adenoma. Laboratory result showed increased Prolactin (216,2 ng/dl) with no other hormonal disturbance. Urgent endoscopic transsphenoidal surgery was planned to excise the tumor. Post-operative CT showed acute right frontal extradural hematoma, in which the patient was planned to have immediate surgery afterwards. DISCUSSION: The specific mechanism of developing EDH post-surgery is unknown because it is an unusual consequence of endoscopic transsphenoidal surgery. Rapid CSF draining during surgery may have led to the formation of a remote extradural hematoma in our patient. CONCLUSION: Endoscopic transsphenoidal surgery also carries the potential risk of remote extradural hematoma, careful steps must be taken to prevent this serious complication during transsphenoidal surgery.
