PMID- 22691211 OWN - NLM STAT- MEDLINE DCOM- 20120813 LR - 20221207 IS - 0392-856X (Print) IS - 0392-856X (Linking) VI - 30 IP - 2 Suppl 71 DP - 2012 Mar-Apr TI - Prevalence and clinical importance of gastroesophageal reflux in Chinese patients with systemic sclerosis. PG - S60-6 AB - OBJECTIVES: To estimate the prevalence of gastroesophageal reflux (GER) and its clinical relevance with other manifestations in Chinese patients with systemic sclerosis (SSc). METHODS: A prospective cross-sectional study of 205 Chinese patients with SSc was conducted at Peking Union Medical College Hospital (PUMCH). GER was diagnosed as mild heartburn or regurgitation >/=2 days per week, or moderate/severe heartburn or regurgitation >/=1 day a week. PAH was defined as pulmonary artery systolic pressure (PASP) >45mmHg at rest as estimated by transthoracic echocardiography (TTE). Demographic, clinical, and laboratory data were calculated between GER and non-GER groups, and relative examinations including a six-minute walk test, pulmonary function test and modified Rodnan skin score (mRSS) were also performed. RESULTS: The prevalence of GER was 43.90% (90/205) among 205 Chinese patients with SSc. The presence of Raynaud phenomenon (98.9% vs. 92.2%), fingertip ulcers (56.7% vs. 51.3%), pulmonary arterial hypertension (PAH) (18.89% vs. 6.96%, respectively), and all gastrointestinal tract manifestations occurred significantly more frequent in patients with GER than in patients without GER, respectively (p<0.05). There were no differences in the development of any autoantibody between GER patients and non-GER patients (p>0.05). Echocardiography showed that the left ventricular ejection fraction (LVEF) was lower (62.27+/-10.48 vs. 70.09+/-5.26, respectively) and pericarditis was more frequent (22.6% vs. 11.0%, respectively) in SSc-related GER than in SSc patients without GER, respectively. The New York Heart Association (NYHA) functional class of SSc-related GER was worse than patients without GER (p=0.015). A pulmonary function test showed that forced vital capacity FVC% (78.93+/-17.90 vs. 84.55+/-17.45, respectively, p=0.042), forced expiratory volume FEV1% (77.12+/-15.65 vs. 84.30+/-16.25, respectively, p=0.004), and diffusing capacity DLCO% (4.76+/-1.76 vs. 5.63+/-2.12, respectively, p<0.001) were lower, and the FVC%/DLCO% ratio (1.46+/-0.42 vs. 1.28+/-0.27, respectively, p=0.001)was higher in SSc-related GER than non-GER patients (p<0.05). We also found that GER was an independent risk factor of PAH in SSc patients (p=0.030, OR=7.532). CONCLUSIONS: GER is common in Chinese patients with SSc, and patients with GER are susceptible to microvascular damage. Therefore, SSc patients presenting with GER should be screened for PAH. FAU - Liu, Xinjuan AU - Liu X AD - Department of Rheumatology, Chinese Academy of Medical Science, Beijing, China. lxjw2009@gmail.com FAU - Li, Mengtao AU - Li M FAU - Xu, Dong AU - Xu D FAU - Hou, Yong AU - Hou Y FAU - Wang, Qian AU - Wang Q FAU - Tian, Zhuang AU - Tian Z FAU - Sun, Qiuning AU - Sun Q FAU - Zeng, Xiaofeng AU - Zeng X LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120530 PL - Italy TA - Clin Exp Rheumatol JT - Clinical and experimental rheumatology JID - 8308521 SB - IM MH - Adolescent MH - Adult MH - Aged MH - Asian People/*statistics & numerical data MH - Chi-Square Distribution MH - Child MH - China/epidemiology MH - Cross-Sectional Studies MH - Familial Primary Pulmonary Hypertension MH - Female MH - Gastroesophageal Reflux/diagnosis/*ethnology MH - Humans MH - Hypertension, Pulmonary/ethnology MH - Logistic Models MH - Male MH - Middle Aged MH - Odds Ratio MH - Predictive Value of Tests MH - Prevalence MH - Prognosis MH - Prospective Studies MH - Risk Assessment MH - Risk Factors MH - Scleroderma, Systemic/diagnosis/*ethnology MH - Severity of Illness Index MH - Young Adult EDAT- 2012/07/26 06:00 MHDA- 2012/08/14 06:00 CRDT- 2012/06/14 06:00 PHST- 2011/11/30 00:00 [received] PHST- 2012/02/01 00:00 [accepted] PHST- 2012/06/14 06:00 [entrez] PHST- 2012/07/26 06:00 [pubmed] PHST- 2012/08/14 06:00 [medline] AID - 5635 [pii] PST - ppublish SO - Clin Exp Rheumatol. 2012 Mar-Apr;30(2 Suppl 71):S60-6. Epub 2012 May 30.