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Epidemiology and management of infections after lung transplantation
1Department of Internal Medicine, University Hospital, Zurich, Switzerland. klinspr@usz.unizh.ch
Abstract:
Lung transplantation has become an accepted treatment for end-stage pulmonary parenchymal and vascular diseases. Infections still are the most common cause of early and late morbidity and mortality in lung transplant recipients. Bacterial infections comprise approximately half of all infectious complications. Cytomegalovirus (CMV) infections and disease have become less frequent, because of prophylaxis with ganciclovir. Because CMV is also involved in the pathogenesis of obliterative bronchiolitis, the frequency of this infection may also reduce the occurrence of this main obstacle to successful lung transplantation. Invasive fungal infections remain a problem, but they have also decreased in frequency because of better control of risk factors such as CMV disease and preemptive antifungal therapy. Nonherpes respiratory viral infections have emerged as a serious problem. Their severity may be reduced by treatment with ribavirin. Meticulous postoperative surveillance, however, is still crucial for the management of lung transplant patients with respect to early detection and treatment of rejection and infection.
Insights
Lung transplant recipients face infections as the primary cause of complications. Prophylaxis and surveillance strategies are key to managing bacterial, viral, and fungal infections, improving patient outcomes.
Area of Science:
- Medicine
- Immunology
- Infectious Diseases
Background:
- Lung transplantation is a vital treatment for advanced lung diseases.
- Infections remain the leading cause of morbidity and mortality in lung transplant recipients.
- Understanding and managing infectious complications is critical for long-term graft survival.
Purpose of the Study:
- To review the spectrum of infectious complications following lung transplantation.
- To discuss the impact of prophylactic and therapeutic strategies on infection rates.
- To highlight the importance of postoperative surveillance for early detection and management.
Main Methods:
- Review of current literature on infections in lung transplant recipients.
- Analysis of the incidence and impact of various pathogens (bacterial, viral, fungal).
- Evaluation of the effectiveness of antimicrobial prophylaxis and treatment regimens.
Main Results:
- Bacterial infections constitute approximately 50% of all infectious complications.
- Cytomegalovirus (CMV) infections are reduced by ganciclovir prophylaxis, potentially decreasing obliterative bronchiolitis.
- Invasive fungal infections have decreased due to better risk factor control and antifungal therapy.
- Non-herpes respiratory viral infections are an emerging concern, manageable with ribavirin.
- Meticulous postoperative surveillance is essential for timely detection of rejection and infection.
Conclusions:
- Infections are a major challenge in lung transplantation, impacting both early and late outcomes.
- Advances in prophylaxis (e.g., ganciclovir for CMV) and treatment (e.g., antifungals, ribavirin) have improved infection control.
- Continuous vigilance through postoperative surveillance remains paramount for successful lung transplant management.