Voltammetric analysis for distinguishing portal hypertension-related from malignancy-related ascites: A proof of concept study

被引:5
|
作者
Muley, Moises [1 ]
Vespasiani-Gentilucci, Umberto [1 ]
De Vincentis, Antonio [1 ]
Santonico, Marco [2 ]
Pennazza, Giorgio [3 ]
Sanguedolce, Simona [1 ]
De Luca, Cristiana [4 ]
Plotti, Francesco [4 ]
Picardi, Antonio [1 ]
Antonelli-Incalzi, Raffaele [5 ]
机构
[1] Univ Campus Biomed, Internal Med & Hepatol, Rome, Lazio, Italy
[2] Univ Campus Biomed, Dept Sci & Technol Humans & Environm, Unit Elect Sensor Syst, Rome, Lazio, Italy
[3] Univ Campus Biomed, Dept Engn, Elect Sensor Syst Unit, Rome, Lazio, Italy
[4] Univ Campus Biomed, Gynaecol & Obstet Unit, Rome, Lazio, Italy
[5] Univ Campus Biomed, Geriatr Unit, Rome, Lazio, Italy
来源
PLOS ONE | 2020年 / 15卷 / 05期
关键词
SPONTANEOUS BACTERIAL PERITONITIS; BREATH-PRINT ANALYSIS; DIFFERENTIAL-DIAGNOSIS; ALBUMIN GRADIENT; BIOCHEMICAL-ANALYSIS; TUMOR-MARKERS; E-NOSE; SERUM; CIRRHOSIS; MANAGEMENT;
D O I
10.1371/journal.pone.0233350
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Background Serum-ascites albumin gradient (SAAG) remains the most sensitive and specific marker for the differentiation of ascites due to portal hypertension from ascites due to other causes. SAAG has some limitations and may fail in selected conditions. Voltammetric analysis (VA) has been used for the detection of electroactive species of biological significance and has proven effective for detection infections in biological fluids. Aims In this study, we compared the accuracy of voltammetric analysis (VA) with that of SAAG to differentiate ascites due to portal hypertension from that having a different origin. Methods 80 ascites samples were obtained from patients undergoing paracentesis at the Campus Bio-Medico Hospital of Rome. VA was performed using the BIONOTE device. The ability of VA to discriminate ascitic fluid etiology and biochemical parameters was evaluated using Partial Least Square Discriminant Analysis (PLS-DA), with ten-fold cross-validations. Results Mean age was 68.6 years (SD 12.5), 58% were male. Ascites was secondary to only portal hypertension in 72.5% of cases (58 subjects) and it was secondary to a baseline neoplastic disease in 27.5% of cases (22 subjects). Compared to SAAG >= 1.1, e-tongue predicted ascites from portal hypertension with a better accuracy (92.5% Vs 87.5%); sensitivity (98.3% Vs 94.8%); specificity (77.3% Vs 68.2%); predictive values (PPV 91.9% Vs 88.7% and NPV 94.4% Vs 83.3%). VA correctly classified ascites etiology in 57/58 (98.2%) of cases with portal hypertension and in 17/22 (77.2%) of cases with malignancy. Instead, VA showed poor predictive capacities towards total white blood count and polymorphonuclear cell count. Conclusions According to this proof of concept study, VA qualifies as a promising low-cost and easy method to discriminate between ascites secondary to portal hypertension and ascites due to malignancy.
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页数:12
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