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06.09.2017 | Original Article | Ausgabe 11/2017

Digestive Diseases and Sciences 11/2017

Preoperative Pulmonary Function Tests Predict Aspiration Pneumonia After Gastric Endoscopic Submucosal Dissection

Zeitschrift:
Digestive Diseases and Sciences > Ausgabe 11/2017
Autoren:
Akihiro Matsumi, Ryuta Takenaka, Chihiro Ando, Yuki Sato, Kensuke Takei, Eriko Yasutomi, Shotaro Okanoue, Shohei Oka, Daisuke Kawai, Junro Kataoka, Koji Takemoto, Hirofumi Tsugeno, Shigeatsu Fujiki, Yoshiro Kawahara

Abstract

Background

ESD allows higher rates of en-bloc and R0 resections, but has occasionally complications such as aspiration pneumonia. Factors associated with aspiration pneumonia are not completely understood.

Aims

To analyze the relationship between aspiration pneumonia and preoperative factors including pulmonary function tests.

Methods

A total of 978 patients with gastric tumors who had received pulmonary function tests were treated by ESD between June 2006 and May 2014. Pulmonary function tests were assessed using a spirometer. The patients were categorized into four groups according to the predicted vital capacity (%VC) and forced expiratory volume in 1 s as a percentage of forced vital capacity (FEV1.0%): normal; restrictive pulmonary dysfunction; obstructive; and mixed. The factors associated with aspiration pneumonia were retrospectively analyzed.

Results

Among the 268 cases with abnormal pulmonary function, 10 cases (3.7%) developed aspiration pneumonia. On the other hand, 7 cases (1.0%) with normal pulmonary function developed pneumonia. There was a significant correlation between pulmonary function and aspiration pneumonia (p = 0.010). When the pulmonary function cases were stratified into subgroups, 2.5% of cases with obstructive pulmonary dysfunction developed pneumonia, 5.5% with restrictive and 5.3% with mixed. By logistic regression analysis, pulmonary function, the presence of cerebral vascular disease, and procedure time were identified as significant independent risk factors associated with aspiration pneumonia. The odds ratios for pulmonary function, cerebral vascular disease, and procedure time were 3.6, 5.1, and 5.2, respectively.

Conclusions

Preoperative pulmonary function tests may be useful markers to evaluate the risk for aspiration pneumonia after gastric ESD.

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