| Type of endoscopy | Author and reference | Year | Organism | Patient details |
| Oesophageal bougienage | Yin22 | 1983 | Streptococcus viridans | Known mitral regurgitation |
| Niv23 | 1985 | Streptococcus viridans | Known MV prolapse | |
| Breuer24 | 1998 | Streptococcus capitis | No known prior valve disease | |
| Variceal sclerotherapy | Baskin25 | 1989 | Streptococcus viridans | Prosthetic valve (failure of prophylaxis) |
| Wong26 | 1997 | Streptococcus salivarius | Native valve | |
| Diagnostic OGD ± biopsy | Rumfeld27 | 1980 | Streptococcus spp. | MV stenosis (patient also had RIH repair) |
| Logan28 | 1988 | Streptococcus sanguis | Known MV prolapse | |
| Pritchard29 | 1991 | Cardiobacterium spp. | Prosthetic aortic valve replacement | |
| Pentimone30 | 1991 | Streptococcus sanguis | Young man; no known cardiac disease | |
| Montalko31 | 2002 | Streptococcus oralis | MV prolapse (symptoms pre-dated OGD in patient on steroids) | |
| Cho32 | 2004 | Streptococcus intermedius | Valvular heart disease | |
| Yu-Hsien33 | 2008 | Acinetobacter spp. | Prosthetic valve | |
| Lower GI | Rodriguez34 | 1984 | Enterococcus spp. | Rheumatic mixed valve disease following flexible sigmoidoscopy |
| Rigilano35 | 1984 | Enterococcus spp. | MV prolapse, rigid sigmoidoscopy | |
| Greco36 | 1986 | Enterococcus spp. | Polypectomy | |
| Watanakunakorn37 | 1988 | Enterococcus spp. | Known aortic stenosis, following polypectomy | |
| Norfleet38 | 1991 | Streptococcus sanguis | Aortic regurgitation: flexible sigmoidoscopy for polyp follow-up | |
| Millaire39 | 1991 | Enterococcus spp. | Polypectomy. No known prior valvulopathy | |
| Giusti de Marle40 | 2000 | Enterococcus spp. | Mixed AVD, colonoscopy | |
| Heiro41 | 2000 | Eikenella spp. | Prosthetic valve | |
| Avlami42 | 2001 | Lactobacillus spp. | No known prior valvulopathy | |
| Malani43 | 2006 | Cardiobacterium spp. | Two cases of prosthetic valve endocarditis following colonoscopy |
AVD, aortic valve disease; GI, gastrointestinal; MV, mitral valve; OGD, oesophagogastroduodenoscopy; RIH, right inguinal hernia.