Mean platelet volume in the differential diagnosis of tuberculous and bacterial meningitis

Introduction: Mean platelet volume (MPV) has been shown to reflect the inflammatory burden in different inflammatory and autoimmune diseases. Our objective was to analyze the MPV in patients with tuberculous (TBM) and bacterial meningitis (BM). Methodology: The demographic and clinical data of 73 c...

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Main Authors: Carlos Rodrigo Camara-Lemarroy, Guillermo Delgado-Garcia, Juan Gilberto De la Cruz-Gonzalez, Hector Jorge Villareal-Velazquez, Fernando Gongora-Rivera
Format: Article
Language:English
Published: The Journal of Infection in Developing Countries 2017-02-01
Series:Journal of Infection in Developing Countries
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Online Access:https://jidc.org/index.php/journal/article/view/7478
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author Carlos Rodrigo Camara-Lemarroy
Guillermo Delgado-Garcia
Juan Gilberto De la Cruz-Gonzalez
Hector Jorge Villareal-Velazquez
Fernando Gongora-Rivera
author_facet Carlos Rodrigo Camara-Lemarroy
Guillermo Delgado-Garcia
Juan Gilberto De la Cruz-Gonzalez
Hector Jorge Villareal-Velazquez
Fernando Gongora-Rivera
author_sort Carlos Rodrigo Camara-Lemarroy
collection DOAJ
description Introduction: Mean platelet volume (MPV) has been shown to reflect the inflammatory burden in different inflammatory and autoimmune diseases. Our objective was to analyze the MPV in patients with tuberculous (TBM) and bacterial meningitis (BM). Methodology: The demographic and clinical data of 73 consecutive patients that presented with either BM (n = 35) or TBM (n = 38) were retrospectively analyzed, as well as that of 28 age- and sex-matched controls. Results: MPV was 8.78 ± 1.58 fL in patients with BM and 6.42 ± 1.39 fL in the TBM group (p < 0.05). In the control group, MPV was 7.4 ± 0.66 fL, significantly higher and lower when compared with TBM and BM, respectively. MPV was significantly associated with diagnosis (adjusted OR: 5.15, 95% CI: 1.090–23.7; p = 0.03). With the optimal cut-off value of 7.62 fL, MPV had 82% sensibility and 78% specificity for the differential diagnosis of TBM versus BM. Lower platelet counts, higher serum creatinine, higher white blood cell counts, and higher blood-cerebrospinal fluid glucose ratio were also predictive of BM. Conclusions: Platelet counts were lower and MPV was higher in patients with BM compared to patients with TBM.  Platelet indices, available in routine bloodwork, could be useful in the early differential diagnosis of these entities.
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spelling doaj-art-50bd0d45c6a242518ca29d4afe935a5a2025-08-20T02:57:21ZengThe Journal of Infection in Developing CountriesJournal of Infection in Developing Countries1972-26802017-02-01110210.3855/jidc.7478Mean platelet volume in the differential diagnosis of tuberculous and bacterial meningitisCarlos Rodrigo Camara-Lemarroy0Guillermo Delgado-Garcia1Juan Gilberto De la Cruz-Gonzalez2Hector Jorge Villareal-Velazquez3Fernando Gongora-Rivera4University Hospital “Dr. Jose E. González”, Autonomous University Of Nuevo Leon, Monterrey, Nuevo Leon, MexicoUniversity Hospital “Dr. Jose E. González”, Autonomous University Of Nuevo Leon, Monterrey, Nuevo Leon, MexicoUniversity Hospital “Dr. Jose E. González”, Autonomous University Of Nuevo Leon, Monterrey, Nuevo Leon, MexicoUniversity Hospital “Dr. Jose E. González”, Autonomous University Of Nuevo Leon, Monterrey, Nuevo Leon, MexicoUniversity Hospital “Dr. Jose E. González”, Autonomous University Of Nuevo Leon, Monterrey, Nuevo Leon, MexicoIntroduction: Mean platelet volume (MPV) has been shown to reflect the inflammatory burden in different inflammatory and autoimmune diseases. Our objective was to analyze the MPV in patients with tuberculous (TBM) and bacterial meningitis (BM). Methodology: The demographic and clinical data of 73 consecutive patients that presented with either BM (n = 35) or TBM (n = 38) were retrospectively analyzed, as well as that of 28 age- and sex-matched controls. Results: MPV was 8.78 ± 1.58 fL in patients with BM and 6.42 ± 1.39 fL in the TBM group (p < 0.05). In the control group, MPV was 7.4 ± 0.66 fL, significantly higher and lower when compared with TBM and BM, respectively. MPV was significantly associated with diagnosis (adjusted OR: 5.15, 95% CI: 1.090–23.7; p = 0.03). With the optimal cut-off value of 7.62 fL, MPV had 82% sensibility and 78% specificity for the differential diagnosis of TBM versus BM. Lower platelet counts, higher serum creatinine, higher white blood cell counts, and higher blood-cerebrospinal fluid glucose ratio were also predictive of BM. Conclusions: Platelet counts were lower and MPV was higher in patients with BM compared to patients with TBM.  Platelet indices, available in routine bloodwork, could be useful in the early differential diagnosis of these entities. https://jidc.org/index.php/journal/article/view/7478meningitismean platelet volumeinflammationplateletsthrombocytopenia
spellingShingle Carlos Rodrigo Camara-Lemarroy
Guillermo Delgado-Garcia
Juan Gilberto De la Cruz-Gonzalez
Hector Jorge Villareal-Velazquez
Fernando Gongora-Rivera
Mean platelet volume in the differential diagnosis of tuberculous and bacterial meningitis
Journal of Infection in Developing Countries
meningitis
mean platelet volume
inflammation
platelets
thrombocytopenia
title Mean platelet volume in the differential diagnosis of tuberculous and bacterial meningitis
title_full Mean platelet volume in the differential diagnosis of tuberculous and bacterial meningitis
title_fullStr Mean platelet volume in the differential diagnosis of tuberculous and bacterial meningitis
title_full_unstemmed Mean platelet volume in the differential diagnosis of tuberculous and bacterial meningitis
title_short Mean platelet volume in the differential diagnosis of tuberculous and bacterial meningitis
title_sort mean platelet volume in the differential diagnosis of tuberculous and bacterial meningitis
topic meningitis
mean platelet volume
inflammation
platelets
thrombocytopenia
url https://jidc.org/index.php/journal/article/view/7478
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