International journal of cardiology · 2020
Elevated C-reactive protein is significantly associated with left ventricular dysfunction in patients with aortic regurgitation and concomitant collagen disease.
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Usuku Hiroki, Yamamoto Eiichiro, Noguchi Momoko, Komorita Takashi, Takae Masafumi, Oike Fumi, Yamanaga Kenshi, Ito Miwa, Fujisue Koichiro, Sueta Daisuke, Kanazawa Hisanori, Araki Satoshi, Arima Yuichiro, Takashio Seiji, Nakamura Taishi, Suzuki Satoru, Kawano Hiroaki, Soejima Hirofumi, Kaikita Koichi, Matsushita Kenichi, Fukui Toshihiro, Matsui Hirotaka, Tsujita Kenichi
Аннотация
BACKGROUND: Collagen disease is an important cause of aortic regurgitation (AR). Although aortic valve surgery is recommended for patients with AR and depressed left ventricular (LV) function, there have been few reports about risk factors for LV dysfunction in patients with AR concomitant with collagen disease.
METHODS AND RESULTS: We conducted this study at Kumamoto University Hospital in Japan. A total of 41 patients who had moderate to severe AR and concomitant collagen disease between January 2014 and December 2019 were enrolled. With regard to baseline characteristics, there were no significant differences in the type of collagen disease or El Khoury class between patients with preserved LV function and those with reduced LV function. B-type natriuretic peptide (375.2 [257.9-3852.6]pg/ml vs. 64.0 [33.3-133.6]pg/ml, p < 0.01), C-reactive protein (CRP) levels (2.00 [1.24-9.14]mg/dl vs. 0.19 [0.06-0.52]mg/dl, p < 0.01) and neutrophil-to-lymphocyte ratio (7.94 [3.30-9.98] vs. 3.94 [1.83-5.58], p < 0.05) were significantly higher, and hemoglobin level (10.7 ± 1.6 g/dl vs. 12.2 ± 1.8 g/dl, p < 0.05) was significantly lower in patients with reduced LV function than in those with preserved LV function. There were no significant differences in any variables associated with severity and features of AR. Multivariable logistic regression analysis showed that high CRP levels (≥1.0 mg/dl) were independently and significantly associated with LV dysfunction in patients with AR and collagen disease, even after adjusting for the severity of AR (odds ratio: 95.7; 95% confidence interval: 4.6-1990.4, p < 0.01).
CONCLUSIONS: Uncontrolled inflammation, represented as high CRP levels, is an important marker for LV dysfunction in patients with AR and collagen disease.
METHODS AND RESULTS: We conducted this study at Kumamoto University Hospital in Japan. A total of 41 patients who had moderate to severe AR and concomitant collagen disease between January 2014 and December 2019 were enrolled. With regard to baseline characteristics, there were no significant differences in the type of collagen disease or El Khoury class between patients with preserved LV function and those with reduced LV function. B-type natriuretic peptide (375.2 [257.9-3852.6]pg/ml vs. 64.0 [33.3-133.6]pg/ml, p < 0.01), C-reactive protein (CRP) levels (2.00 [1.24-9.14]mg/dl vs. 0.19 [0.06-0.52]mg/dl, p < 0.01) and neutrophil-to-lymphocyte ratio (7.94 [3.30-9.98] vs. 3.94 [1.83-5.58], p < 0.05) were significantly higher, and hemoglobin level (10.7 ± 1.6 g/dl vs. 12.2 ± 1.8 g/dl, p < 0.05) was significantly lower in patients with reduced LV function than in those with preserved LV function. There were no significant differences in any variables associated with severity and features of AR. Multivariable logistic regression analysis showed that high CRP levels (≥1.0 mg/dl) were independently and significantly associated with LV dysfunction in patients with AR and collagen disease, even after adjusting for the severity of AR (odds ratio: 95.7; 95% confidence interval: 4.6-1990.4, p < 0.01).
CONCLUSIONS: Uncontrolled inflammation, represented as high CRP levels, is an important marker for LV dysfunction in patients with AR and collagen disease.