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Serial echocardiographic appearance of healing bacterial vegetations
Insights
Serial echocardiography effectively monitors healing infectious endocarditis vegetations. Both M-mode and cross-sectional views provide valuable insights into vegetation changes during antibiotic treatment.
Area of Science:
- Cardiology
- Infectious Diseases
- Medical Imaging
Background:
- Infectious endocarditis requires diligent monitoring, especially during antibiotic therapy.
- Echocardiography plays a crucial role in assessing cardiac conditions, including vegetations.
- Serial imaging is essential for tracking treatment efficacy and disease progression.
Observation:
- Six patients with infectious endocarditis treated with antibiotics underwent serial M-mode and cross-sectional echocardiograms.
- Echocardiograms were performed over an average follow-up of 50 weeks.
- Vegetations were observed to decrease in size and increase in echo-reflectivity as they healed.
Findings:
- M-mode echocardiography excelled at evaluating vegetation echo-reflectivity.
- Cross-sectional echocardiography was superior for assessing vegetation size and shape.
- Significant changes were noted in two patients following peripheral embolization events.
Implications:
- Echocardiography is well-suited for serial visualization of healing vegetations in patients managed non-surgically.
- Combined M-mode and cross-sectional echocardiography can enhance the follow-up of infectious endocarditis patients.
- This imaging approach aids in evaluating treatment response and guiding clinical management.
Abstract:
Serial M mode and cross-sectional echocardiograms were obtained from six patients who had been treated with antibiotic drugs for infectious endocarditis. Three to six M mode echocardiograms and one to six cross-sectional echocardiograms were obtained from each patient over a follow-up period averaging 50 weeks (range 10 to 108 weeks). On echocardiography, vegetations were observed to have become smaller and more echo-reflective with healing. A dramatic change was seen in two patients after peripheral embolization. M mode echocardiography was particularly helpful in determining the quality of echo reflection by vegetations; cross-sectional echocardiography was more helpful in judging the size and shape of a vegetation. Echocardiography is ideally suited for the serial visualization of healing vegetations in patients who do not require early valve replacement. It may prove helpful to examine serially valve vegetations with both M mode and cross-sectional echocardiography when following up patients with infectious endocarditis treated with antibiotic agents.