PMID- 35532646 OWN - NLM STAT- MEDLINE DCOM- 20220511 LR - 20220511 IS - 1998-4022 (Electronic) IS - 0028-3886 (Linking) VI - 70 IP - 2 DP - 2022 Mar-Apr TI - Cerebrospinal Fluid Procalcitonin-A Potential Biomarker for Post-Craniotomy Bacterial Meningitis. PG - 721-726 LID - 10.4103/0028-3886.344643 [doi] AB - BACKGROUND: The literature regarding the utility of cerebrospinal fluid (CSF) procalcitonin (PCT) in the diagnosis of post-craniotomy bacterial meningitis and differentiating it from aseptic meningitis is sparse. MATERIALS AND METHODS: CSF total WBC count, sugar, protein, and PCT were measured in febrile patients with suspected post-craniotomy meningitis during the first 30 days following an intradural cranial procedure for non-trauma indications. Patients were diagnosed as postoperative bacterial meningitis if CSF culture was positive (PBM, n = 28) or postoperative aseptic meningitis if CSF culture was sterile and there was no evidence of systemic infection (PAM, n = 31). CSF cytochemical parameters and PCT values were compared between the groups. Normal values of CSF PCT were obtained from 14 patients with noninfectious indications with hydrocephalus. RESULTS: There was no significant difference in CSF total WBC count, sugar, and protein levels between PAM and PBM groups. The median PCT level in CSF in the normal group was 0.03 ng/mL (interquartile range [IQR] 0.02-0.07 ng/mL). CSF PCT in the PBM group (median 0.37 ng/mL, IQR 0.2-1.4 ng/mL) was significantly higher than normal values as well as PAM group (median 0.12 ng/mL, IQR 0.07-0.26 ng/mL (P = 0.0004). The area under the receiver operating characteristic (ROC) curve for CSF PCT was 0.767. A cutoff value of 0.12 ng/mL yielded a sensitivity of 85.7% (95% CI: 67.3% to 96%), specificity of 51.6% (95% CI: 33% to 69.9%), positive predictive value of 61.5% (95% CI: 51.9% to 70.3%), and negative predictive value of 80% (95% CI: 60.3.8% to 91.3%). CONCLUSIONS: CSF PCT assay in patients who are febrile during the first 30 days post-non-trauma neurosurgical procedures has a role in the early diagnosis of bacterial meningitis. FAU - Moorthy, Ranjith K AU - Moorthy RK AD - Department of Neurological Sciences, Christian Medical College, Vellore, Tamil Nadu, India. FAU - Job, Victoria AU - Job V AD - Department of Clinical Biochemistry, Christian Medical College, Vellore, Tamil Nadu, India. FAU - Rebekah, Grace AU - Rebekah G AD - Department of Biostatistics, Christian Medical College, Vellore, Tamil Nadu, India. FAU - Rajshekhar, Vedantam AU - Rajshekhar V AD - Department of Neurological Sciences, Christian Medical College, Vellore, Tamil Nadu, India. LA - eng PT - Journal Article PL - India TA - Neurol India JT - Neurology India JID - 0042005 RN - 0 (Biomarkers) RN - 0 (Procalcitonin) RN - 0 (Sugars) RN - 9007-12-9 (Calcitonin) SB - IM MH - Biomarkers/cerebrospinal fluid MH - Calcitonin/cerebrospinal fluid MH - Craniotomy MH - Disease Progression MH - Fever MH - Humans MH - *Meningitis, Aseptic MH - *Meningitis, Bacterial/cerebrospinal fluid/diagnosis MH - Procalcitonin/cerebrospinal fluid MH - Prospective Studies MH - ROC Curve MH - Sugars OTO - NOTNLM OT - Aseptic meningitis OT - bacterial meningitis OT - biomarkers OT - postoperative fever OT - postoperative meningitis OT - procalcitonin COIS- None EDAT- 2022/05/10 06:00 MHDA- 2022/05/12 06:00 CRDT- 2022/05/09 10:59 PHST- 2022/05/09 10:59 [entrez] PHST- 2022/05/10 06:00 [pubmed] PHST- 2022/05/12 06:00 [medline] AID - ni_2022_70_2_721_344643 [pii] AID - 10.4103/0028-3886.344643 [doi] PST - ppublish SO - Neurol India. 2022 Mar-Apr;70(2):721-726. doi: 10.4103/0028-3886.344643.