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Infectious complications in heart-lung transplant recipients
Abstract:
Infectious complications were studied in 14 patients who received heart-lung transplants at Stanford University Medical Center from March 1981 to November 1983. Twenty-nine infections occurred in 12 patients: 18 bacterial, nine viral, and two fungal. Sixteen (89 percent) of the bacterial infections occurred in the lung. Because of frequent colonization of the lower respiratory tract, the specificity of transtracheal aspiration and bronchoscopy was low. Empiric broad-spectrum antibiotic therapy was usually successful, and no patient died of bacterial infection. Cytomegalovirus infection occurred in six and herpes simplex virus infection in three patients. Two patients had invasive candidiasis at postmortem examination. This series emphasizes the importance of infection, particularly of the lung, in causing morbidity and mortality in heart-lung transplant recipients.
Insights
Infections are common after heart-lung transplants, especially in the lungs. While bacterial infections were treatable, viral and fungal infections posed significant risks, highlighting the need for vigilant monitoring in transplant patients.
Area of Science:
- Medicine
- Transplantation
- Infectious Diseases
Background:
- Heart-lung transplantation is a complex procedure with significant risks.
- Infectious complications are a major cause of morbidity and mortality in transplant recipients.
- Understanding the patterns of infection is crucial for improving patient outcomes.
Purpose of the Study:
- To investigate the types and incidence of infectious complications in heart-lung transplant recipients.
- To identify common pathogens and affected sites.
- To evaluate the effectiveness of treatment strategies.
Main Methods:
- Retrospective analysis of 14 patients who underwent heart-lung transplantation between March 1981 and November 1983.
- Review of patient records to identify and categorize all infectious episodes.
- Assessment of diagnostic methods and treatment outcomes.
Main Results:
- A total of 29 infections occurred in 12 out of 14 patients.
- Bacterial infections were most common (18 cases), predominantly in the lungs (89%).
- Viral infections included cytomegalovirus (6 patients) and herpes simplex virus (3 patients); two patients developed invasive candidiasis.
Conclusions:
- Infections, particularly pulmonary infections, are a significant cause of morbidity in heart-lung transplant recipients.
- Empiric broad-spectrum antibiotic therapy was generally effective against bacterial infections.
- The study underscores the critical importance of managing and preventing infections in this patient population.