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Ohayon M, Campoli P, Martrille L, Brix M, Kopp Q, Cohet M, Tran N, Lardenois É, Gauchotte G. [Two experimental models for wound vitality evaluation in forensic pathology: A clinical prospective non-interventional study and an animal model]. Ann Pathol 2022; 42:448-457. [PMID: 35272864 DOI: 10.1016/j.annpat.2022.01.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 12/03/2021] [Accepted: 01/18/2022] [Indexed: 11/17/2022]
Abstract
AIM OF THE STUDY In forensic pathology, wound age evaluation allows to determine if a wound was inflicted before or after death, and to date wounds of different ages. This dating is performed in conventional histopathology by observing inflammatory cells and hemorrhage at the wound site. However, these criteria seem to show low sensitivity and/or specificity. The aim of our study was to compare two models of wound vitality evaluation: a human surgical model, and a porcine experimental model; using these histological criteria. PATIENTS AND METHOD In the two human (n=38) and porcine (n=11) models, three wounds were performed at regular time-lapse before devascularization/sacrifice, and a control wound after devascularization/sacrifice. The main evaluation criteria were the presence of interstitial hemorrhage and the number of interstitial polymorphonuclear neutrophils at 10 high power fields. RESULTS In the two models, the number of polymorphonuclears neutrophils was significantly higher in vital wounds compared to the post-devascularization/sacrifice wounds (P<0.001), with a very low sensitivity (human model: 4.3%; porcine: 47%). Hemorrhagic infiltration was more frequent in vital wounds (human: P<0.001; porcine: P=0.01), with a low specificity (human: 48%; porcine: 54%). DISCUSSION AND CONCLUSION This first study confirms, in the two models, the limitations of conventional histopathology in wound vitality evaluation. The next step will be testing several immunohistochemical markers in the two models.
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Affiliation(s)
- Mikael Ohayon
- Service d'anatomie et cytologie pathologiques, département de biopathologie, hôpitaux de Brabois, CHRU de Nancy, 54500 Vandœuvre-lès-Nancy, France
| | - Philippe Campoli
- Service d'anatomie et cytologie pathologiques, département de biopathologie, hôpitaux de Brabois, CHRU de Nancy, 54500 Vandœuvre-lès-Nancy, France
| | - Laurent Martrille
- Service de médecine légale, hôpitaux de Brabois, CHRU de Nancy, 54500 Vandœuvre-lès-Nancy, France
| | - Muriel Brix
- Service de chirurgie plastique et reconstructrice, hôpital Central, CHRU de Nancy, 54000 Nancy, France
| | - Quentin Kopp
- Service de chirurgie plastique et reconstructrice, hôpital Central, CHRU de Nancy, 54000 Nancy, France
| | - Michael Cohet
- Service de chirurgie plastique et reconstructrice, hôpital Central, CHRU de Nancy, 54000 Nancy, France
| | - Nguyen Tran
- Pôle de chirurgie, faculté de médecine de Nancy, université de Lorraine, 54500 Vandœuvre-lès-Nancy, France
| | - Émilie Lardenois
- Service d'anatomie et cytologie pathologiques, département de biopathologie, hôpitaux de Brabois, CHRU de Nancy, 54500 Vandœuvre-lès-Nancy, France
| | - Guillaume Gauchotte
- Service d'anatomie et cytologie pathologiques, département de biopathologie, hôpitaux de Brabois, CHRU de Nancy, 54500 Vandœuvre-lès-Nancy, France; Service de médecine légale, hôpitaux de Brabois, CHRU de Nancy, 54500 Vandœuvre-lès-Nancy, France; Inserm U1256, équipe 3 MIGB, NGERE, université de Lorraine, 54500 Vandœuvre-lès-Nancy, France; Centre de ressources biologiques BB-0033-00035, CHRU de Nancy, 54500 Vandœuvre-lès-Nancy, France.
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Maurac A, Lardenois É, Eyries M, Ghigna MR, Petit I, Montani D, Guillaumot A, Caput B, Chabot F, Chaouat A. T-box protein 4 mutation causing pulmonary arterial hypertension and lung disease. Eur Respir J 2019; 54:13993003.00388-2019. [DOI: 10.1183/13993003.00388-2019] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 05/05/2019] [Indexed: 12/26/2022]
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