Endoscopy 2021; 53(08): 784-791
DOI: 10.1055/a-1297-0333
Original article

Caustic ingestion: development and validation of a prognostic score

1   Department of Digestive Medicine, Hospital Clínic Universitari, Universitat de Valencia, Valencia, Spain
,
Rosana Villagrasa
1   Department of Digestive Medicine, Hospital Clínic Universitari, Universitat de Valencia, Valencia, Spain
,
Ana Sanahuja
1   Department of Digestive Medicine, Hospital Clínic Universitari, Universitat de Valencia, Valencia, Spain
,
Ana Sanchez
1   Department of Digestive Medicine, Hospital Clínic Universitari, Universitat de Valencia, Valencia, Spain
,
Galo Antonio Trejo
1   Department of Digestive Medicine, Hospital Clínic Universitari, Universitat de Valencia, Valencia, Spain
,
Belen Herreros
2   Department of Digestive Medicine, Hospital de la Marina Baixa de la Vila Joiosa, Alicante, Spain
,
Isabel Pascual
1   Department of Digestive Medicine, Hospital Clínic Universitari, Universitat de Valencia, Valencia, Spain
,
Pilar Mas
1   Department of Digestive Medicine, Hospital Clínic Universitari, Universitat de Valencia, Valencia, Spain
,
Andres Peña
1   Department of Digestive Medicine, Hospital Clínic Universitari, Universitat de Valencia, Valencia, Spain
,
Miguel Minguez
1   Department of Digestive Medicine, Hospital Clínic Universitari, Universitat de Valencia, Valencia, Spain
› Institutsangaben
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Abstract

Background Caustic ingestion is a potentially severe condition and early identification of poor outcome is essential to improve management; however, prediction based on endoscopy alone can overestimate severity. This study aimed to develop and validate a prognostic score.

Methods A prospective cohort study was designed to include all consecutive patients aged > 15 years who presented with caustic ingestion between 1995 and 2017. Adverse outcome was defined by intensive care unit admission, urgent surgery, or death. The predictive value of clinical, analytical, and endoscopic variables was assessed in the first cohort (derivation cohort) and a prognostic score based on the resulting risk factors was developed by logistic regression. Internal validation (bootstrapping) was performed and then external validation was checked in an independent sample of patients (validation cohort).

Results 469 cases of caustic ingestion were included, 265 in the derivation cohort and 204 in the validation cohort. Ingestion of acidic substances (odds ratio [OR] 3.13, 95 % confidence interval [CI] 2.33 – 4.21), neutrophil count (OR 1.05, 95 %CI 1.04 – 1.06), metabolic acidosis (bicarbonate value, OR 0.82, 95 %CI 0.78 – 0.85), and endoscopic injury (OR 3.81, 95 %CI 3.35 – 4.34) were independent risk factors for poor outcome. The prognostic score based on these variables provided better accuracy than endoscopy alone (P = 0.04), with high sensitivity, specificity, positive and negative predictive values (93.3 %, 92.7 %, 72.7 %, 98.5 %, respectively), and area under the curve (0.976, 95 %CI 0.973 – 0.979; P < 0.001).

Conclusions This score allowed a reliable prognosis of caustic ingestion and was more accurate than endoscopy-based evaluation.

Table 1s–7s, Fig. 1s



Publikationsverlauf

Eingereicht: 18. Mai 2020

Angenommen: 23. Oktober 2020

Accepted Manuscript online:
23. Oktober 2020

Artikel online veröffentlicht:
18. Januar 2021

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