Volume 14, Number 7—July 2008
Letter
Bartonella quintana and Coxiella burnetii as Causes of Endocarditis, India
Nandhakumar Balakrishnan*, Thangam Menon*, Pierre-Edouard Fournier†, and Didier Raoult†
Table
Clinical findings and causative agent for 9 patients with blood culture–negative endocarditis, India, August 2005–December 2006*
| Patient age, y/sex | Underlying cardiac condition | Echocardiographic findings | IgG titer to Bartonella spp. | IgG titer to Coxiella burnetii phase I | Causative agent |
|---|---|---|---|---|---|
| 25/F | Right atrium fistula | Vegetation attached to tricuspid valve | 400 | 100 | Bartonella quintana |
| 46/M | Rheumatic heart disease | Vegetation attached to anterior mitral leaflet | 0 | 800 | Coxiella burnetii |
| 14/M | Rheumatic heart disease | Vegetation attached to tip of anterior mitral leaflet | 200 | 0 | B. quintana |
| 13/M | Rheumatic heart disease | Vegetation attached to anterior mitral leaflet | 200 | 0 | B. quintana |
| 28/M | Bicuspid aortic valve disease | Vegetation attached to anterior coronary cusp of aortic valve | 400 | 0 | B. quintana |
| 30/M | Rheumatic heart disease | Vegetation attached to both anterior and posterior mitral leaflet extending to chordae tendinae | 200 | 0 | B. quintana |
| 50/F | Rheumatic heart disease | Vegetation attached to noncoronary cusp of aortic valve | 400 | 0 | Bartonella spp. |
| 40/M | Bicuspid aortic valve disease | Calcified aortic valve | 400 | 0 | B. quintana |
| 40/M | Double chamber right ventricle and subaortic perimembranous ventricular septal defect | Vegetation attached to right atrium anterior leaf of tricuspid valve and lateral cusp of pulmonary valve | 800 | 0 | B. quintana |
*Ig, immunoglobulin.
