Related Experiment Video
Updated: Jul 28, 2026
Murine Cervical Heart Transplantation Model Using a Modified Cuff Technique
Published on: October 12, 2014
[Infectious complications of heart transplantation. A prospective study for the first 6 years of a transplantation
M Bernabeu-Wittel1, E Cañas García-Otero, M Herrero Romero
1Servicio de Enfermedades Infecciosas, Hospital Universitario Virgen del Rocío, Sevilla.
Insights
Infectious complications are common after heart transplantation, leading to prolonged hospital stays and being the primary cause of mortality. Bacterial infections, particularly pneumonia, are the most frequent.
Area of Science:
- Cardiology
- Infectious Diseases
- Transplantation Medicine
Background:
- Heart transplantation is a life-saving procedure for end-stage heart failure.
- Post-transplant complications, especially infections, significantly impact patient outcomes.
- Understanding risk factors for infection is crucial for improving survival rates.
Purpose of the Study:
- To investigate the incidence, types, and outcomes of infectious complications in heart transplant recipients.
- To identify factors associated with mortality and the development of infections post-transplantation.
Main Methods:
- Prospective study of 69 heart transplantations over six years (1991-1996).
- Clinical features of infections within the first year post-transplant were documented.
- Univariate and multivariate analyses were performed to identify risk factors for mortality and infection.
Main Results:
- 73% of patients experienced at least one infectious complication, with an incidence of 1.13 episodes per patient-year.
- Bacterial infections (50%), particularly pneumonia (28%), were most common. Opportunistic organisms caused 42% of infections.
- Infectious complications were linked to increased mortality (62.5% of deaths), prolonged hospital stays, and acute rejection episodes.
Conclusions:
- Infectious complications are highly prevalent in the first year after heart transplantation.
- These infections are a leading cause of mortality and prolong hospitalization.
- Bacterial infections and pneumonia represent the most common infectious challenges.
Objective:
To study the infectious complications, mortality, and associated factors in heart transplant recipients.
Methods:
Prospective study of the first 69 heart transplantations performed from January 1991 until December 1996 in a university hospital. Description of clinical features of infectious complications during the first year after transplantation. Univariate and multivariate analyses of the risk factors associated with mortality and development of infectious complications.
Results:
Seventy-three percent of patients had at least one infectious complication; the incidence was 1.13 episodes per patient-year. The etiology of complications was bacterial (50%), viral (31%), Pneumocystis carinii (5%), fungal (4%), and protozoal (4%). The opportunist organisms accounted for 42% of cases. Pneumonia was the most common complication (28%), followed by mucocutaneous herpetic reactivation (19%), bacteremia (13%), urinary tract infection (13%), cytomegalovirus disease (11.5%), pleural empyema (5%) and surgical wound infection (5%). Nosocomial pneumonia accounted for 50% of cases. Gram-negative rods accounted for 41% of pneumonia cases. A total of 62.5% of deaths were directly related to infectious complications. Factors independently associated with mortality were hospital origin at transplantation (RR = 4.5 [2-9], p = 0.034), development of infectious complications in the post-heart transplantation period (RR = 3.2 [1.2-12], p = 0.04) and a more prolonged hospital stay at ICU (p = 0.0004). The factor which was independently associated with the development of infectious complications was one or more severe episodes of acute rejection (RR = 1.5 [1.1-2.2], p = 0.04). Patients who developed infectious complications had a more prolonged accumulated annual hospital stay (p = 0.004) than those without infectious complications.
Conclusions:
Infectious complications are very common, prolong hospital stay, and are the first cause of mortality during the first year after transplantation. Bacteria are the most common etiology and pneumonia is the most common infection.
Related Concept Videos
01:24Tissue Transplantation
The Biology of Tissue Transplantation
The biology of tissue transplantation hinges on the Major Histocompatibility Complex (MHC) molecules. These molecules...
01:25Endocarditis I: Introduction
01:18Endocarditis III: Medical Management
01:28Kidney Transplant I: Introduction
01:26Kidney Transplant II: Surgical Procedure
01:16Kidney Transplant III: Nursing Management