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Table 1 Clinical diagnosis and Main laboratory results

From: Identification of pathogens in culture-negative infective endocarditis cases by metagenomic analysis

Case no

Diagnosis

Valve Gram staining

Blood culture

Valve culture

Nanopore

NGS

Sanger

A1

Definite IEa

GPCb

Negative

Filamentous fungi c

S. gordonii

S. gordonii

S. gordonii

A2

Definite IEa

GPCb

Negative

Negative

S. oralis

S. oralis

S. viridans spp.

A3

Definite IEa

Negative

Negative

Negative

Coxiella burnetii

Coxiella burnetii

Not detected

A4

Definite IEa

Negative

Negative

Negative

Bartonella Quintana

Bartonella Quintana

Bartonella Quintana

A5

Definite IE

Negative

S. oralis

Negative

S. oralis

S. oralis

S. viridans spp.

A6

Definite IEa

GPCb

Negative

Negative

S. sanguis

S. sanguis

S. sanguis

A7

Definite IE

GPCb

S. anginosus

Negative

S. anginosus

S. anginosus

S. anginosus

  1. aDefinite IE was diagnosed according to histopathologic examination, clinical presentation and echocardiographic result
  2. bGPC Gram positive coccus
  3. cThis result was considered to be contamination