Abstract
Burn injuries are a major cause of morbidity and mortality, largely due to complications such as infection. Impairment of the immune system following burns increases susceptibility to both internal and external infections, underscoring the need for effective infection control strategies in burn care. In addition, burn patients frequently exhibit profound alterations in drug pharmacokinetics and pharmacodynamics (PK/PD), particularly during the resuscitation and hypermetabolic phases. In the resuscitation phase, increased capillary permeability and reduced cardiac output can prolong drug distribution, delay therapeutic response, lower peak plasma concentrations, and slow elimination. In contrast, the hypermetabolic phase is characterized by elevated catecholamine levels and enhanced tissue perfusion, which accelerate drug distribution and clearance. These physiological changes often necessitate antimicrobial dose adjustments to maintain therapeutic efficacy. This review emphasizes the critical importance of infection prevention and management in burn patients, with a focus on optimizing antimicrobial dosing and therapeutic monitoring in the context of PK/PD alterations.
1. Background
Burn injuries are considered a challenging crisis for both patients and healthcare personnel due to the multitude of problems that can occur during and after the treatment procedure. The skin acts as a vital defense against external microorganisms; however, when burns occur, the skin’s protective function is compromised, allowing microorganisms to enter the affected area and proliferate within the damaged tissue. Furthermore, burns can compromise the immune system, thereby increasing vulnerability to internal and external infections, a significant cause of morbidity and mortality in this population. The onset or progression of infection in these patients significantly influences mortality, highlighting the critical need for effective infection control strategies in burn care [1].
Moreover, the bacterial flora found within burn wounds is a dynamic entity that undergoes significant changes over time. Initially, these wounds are considered sterile, but within a few days, Gram-positive cocci such as methicillin-resistant Staphylococcus aureus (MRSA) and Streptococcus pyogenes, start to colonize the wounds from deeper structures such as hair follicles and glands. In the second phase, a Gram-negative shift occurs, where Pseudomonas aeruginosa, Escherichia coli, and Proteus are the predominant isolates. The emergence of multidrug-resistant (MDR) bacteria has posed a significant challenge in managing burns [2,3]. A recent study on severely burned patients revealed that the most frequently isolated bacteria were Pseudomonas aeruginosa, followed by Staphylococcus aureus, Klebsiella spp., and Acinetobacter baumannii [4].
Furthermore, burn patients are vulnerable to multiple pharmacokinetic and pharmacodynamic (PK/PD) changes, particularly in response to shock and the hypermetabolic state characteristic of burn injury. Generally, burn injuries can be divided into two stages based on physiological changes [5]. In the initial resuscitative phase, occurring within the first 48 h post-injury, pharmacokinetic alterations—such as prolonged distribution, delayed onset of action, reduced maximum serum concentration (Cmax), and slower drug elimination—are expected due to factors like capillary hyperpermeability and decreased cardiac output [6]. Subsequently, during the hypermetabolic stage—characterized by elevated catecholamines and increased tissue perfusion, pharmacokinetic changes such as faster distribution and shorter elimination half-life (t1/2) might occur, necessitating antimicrobial dosing adjustments to maintain therapeutic efficacy [7,8].
As a result of these unique features of PK/PD alterations, optimizing antimicrobial dosing and selection is considered crucial to enhance the outcome and prevent the risk of microbial resistance in this population. Despite the recognized significance of infection prevention and management in patients with burn injury, the evidence base on this topic is still developing, particularly considering the challenges posed by the significant changes in PK/PD of antimicrobials and the increased risk of infections, including acquiring multidrug-resistant organisms (MDR), which could further limit their therapeutic options. Therefore, this review aims to underscore the critical importance of infection prevention and management in burn patients, emphasizing the need for appropriate antimicrobial dosing and monitoring tailored to the unique PK/PD profile of burn patients. Table 1 summarizes studies on antimicrobial agents in burn patients.
Table 1.
Summary of studies on antibiotics in burn patients.
2. Method
Articles published via PubMed and Scopus from inception till January 2025 were evaluated for inclusion using the following terms: “Burn injuries”, “Infection control”, “Pharmacokinetics”, “Pharmacodynamics”, and “Antimicrobial dosing”. Additional references, including abstracts and conference posters, were identified through a manual search employing the same search terms. Only articles published in English that focused on adult burn patients and directly addressed infection prevention, antimicrobial management, or pharmacological considerations were included in this review. Original research, including randomized controlled trials (RCTs), observational studies (including retrospective, prospective, and case series/case reports), and pharmacokinetic studies, was included. Selected in vitro and in vivo studies were included when they considered the only available evidence on certain aspects. We excluded non-original research (e.g., review articles) and studies that primarily discussed non-pharmacological interventions, psychological aspects, or caregiver experiences related to burn victims. The included studies were evaluated using the levels of evidence provided by the Oxford Centre for Evidence-Based Medicine (OCEBM)’s.
3. Infection Prevention and Control in Burn Patients
Wounds caused by severe burns are susceptible to bacterial colonization. The use of systemic prophylactic antibiotics for severe burn patients is still controversial. The majority of the studies did not result in a significant reduction in wound infections by using systemic prophylactic antibiotics. Therefore, it is not recommended to use them for this purpose [35,36,37].
In contrast, one study showed that using prophylactic first-generation cephalosporins or ampicillin/sulbactam may decrease 28-day in-hospital mortality in mechanically ventilated patients with severe burns. However, the unknown impact of this study on antimicrobial resistance, combined with its retrospective design, would limit its applicability to practice [9]. Another study (which included 40 patients) showed that trimethoprim-sulfamethoxazole prophylaxis reduced the incidence of MRSA pneumonia in burn patients, but the study was limited by its small sample size and uncertain risk of bias [10].
As for prophylactic topical antibiotics, such as silver sulfadiazine, there is no evidence to support the use of these agents in significantly reducing the risk of burn wound infection compared to other topical preparations, dressings, placebos, or no treatment [35].
Patients with burns are at high risk of acquiring infections. Therefore, sustained efforts to maintain infection control and attention to preventing the transmission of pathogenic microorganisms are highly recommended. Moreover, maintaining a clean hospital environment through proper hand hygiene, microbial monitoring, regular cleaning, effective air filtration, and adequate ventilation would help reduce infections in burn patients [37].
4. Infection Treatment in Burn Patients
4.1. Treatment for Bacterial Infection: General Considerations
In managing patients with severe burn wound infection, the immediate priorities involve restoring hemodynamic stability. Simultaneously, broad-spectrum antibiotics are initiated based on the institution’s antibiogram [38], with a focus on antipseudomonal agents such as piperacillin/tazobactam or fourth-generation cephalosporins [39,40,41]. Burn units experience a high prevalence of methicillin-resistant Staphylococcus aureus (MRSA), with infection rates exceeding 50%. Considering this concerning epidemiology, empiric antibiotic therapy should prioritize vancomycin in alignment with the local antibiogram (Figure 1) [42]. Whenever possible, broad-spectrum therapy should be transitioned to organism-specific antibiotics to mitigate the risk of superinfections with resistant organisms (Table 2) [38,39].
Figure 1.
Algorithm for infection management in patients with burn injuries.
Table 2.
Common pathogens causing burn wound infection and suggested treatment.
The patient’s clinical response dictates the duration of antibiotic therapy and should be tailored upon definitive diagnosis through burn wound cultures and histopathology [38]. Once the patient is stabilized, thorough surgical debridement is crucial, aiming to remove all infected tissue to a healthy base, confirmed by intraoperative biopsy. Reassessment and repeat debridement within 24–48 h are also necessary to ensure complete removal of necrotic tissue. Finally, definitive wound closure should be achieved with autologous skin grafts whenever feasible, as early excision and autografting are associated with better graft take, lower infection rates, shorter hospitalization, and improved survival [43].
While systemic antibiotics may reach some viable tissues, their penetration into necrotic areas is limited, potentially leading to the selection of resistant bacterial strains among the diverse microbial flora colonizing the wound. Consequently, ongoing pharmacokinetic and pharmacodynamic evaluations by a qualified clinical pharmacist are crucial to optimize drug dosing regimens, ensuring both safety and efficacy [44,45].
4.2. Treatment for Fungal Infections: General Considerations
Invasive fungal infections in burn patients were associated with a 10-fold increase in 1-year mortality compared to burn patients without fungal infections (risk ratio 9.8, p < 0.0001), and an incremental increase in percent total body surface area (%TBSA) burns was strongly associated with fungal infection mortality [46]. Fungal colonization in intensive care patients with burns reached up to 16.1% [47]. Overall, Candida species (Albicans and non-Albicans) and Aspergillus can cause fungal infections in burn patients [3]. Candida species are reported to be the most common bloodstream infections, even more prevalent than bacterial infections, in burn patients [48].
The choice of antifungal treatment agent depends on the causative fungal infection. For Candida infections, echinocandins and fluconazole are commonly used, while voriconazole, isavuconazole, and posaconazole are preferred for managing invasive Aspergillus infections. Liposomal amphotericin B offers broad coverage and can be used to treat both Candida and Aspergillus infections [49,50]. The pharmacokinetics and pharmacodynamics of liposomal amphotericin B, fluconazole, posaconazole, and voriconazole are significantly altered in burn patients, necessitating higher adjusted dosing to treat fungal infections in these populations [51].
5. Appropriate Antimicrobials (Dosing, Pharmacokinetic Considerations, and Monitoring)
5.1. Antibiotics
5.1.1. Cefepime
Many studies investigated how burn severity and patient-related characteristics can affect cefepime’s drug levels in burn patients. The normal cefepime dose for healthy people is 2 g every 12 h. However, some studies suggest that this may not be sufficient for burn patients, and suboptimal trough concentrations may occur [11]. To overcome this, more aggressive strategies such as shortened intervals or continuous infusions have been proposed [12,13]. Based on specific PK/PD targets and burn severity, various regimens have also been proposed [52]. One study has demonstrated the efficacy of therapeutic drug monitoring (TDM) in achieving targeted cefepime exposures [14]. However, more studies are needed to determine the appropriate dose of cefepime in burn patients.
5.1.2. Ceftazidime
Numerous studies have investigated ceftazidime’s pharmacokinetic (PK) profile across various patient groups, suggesting the need for precise dosing strategies to achieve optimal drug exposure [15,16]. While early studies lacked specific dosing recommendations. Conil et al. later addressed this gap by demonstrating that traditional intermittent infusions frequently failed to achieve desired PK/PD targets, particularly in burn patients. Their findings confirmed the potential benefit of shortening dosing frequencies or continuous infusions, especially for bacteria with high minimum inhibitory concentration (MIC) [12,17]. Moreover, Le Floch et al. reported high target attainment with continuous infusion, albeit without providing specific details regarding implementation [53]. However, an old study demonstrated that intermittent infusions achieved favorable concentrations within tissues and burned blister fluids [54]. Collectively, these studies assure the significant role of adjusting ceftazidime regimens based on patient characteristics and PK/PD targets to achieve the optimal therapeutic regimen. Based on the limited evidence, an approach is to give a loading dose of ceftazidime followed by 1 g every 4 h as intermittent infusions, or to give ceftazidime as a 24 h continuous infusion of 6 g, for which the continuous infusion is typically preferred for maintaining therapeutic concentrations.
5.1.3. Piperacillin/Tazobactam
Several PK/PD studies of piperacillin-tazobactam in burned patients have evaluated different dosing regimens and PK/PD targets, demonstrating significant variability in the PK parameters of piperacillin-tazobactam. One study suggests that 4.5 g every 6 h via intermittent infusion may be effective in burn patients [18]. However, others report that higher doses and prolonged infusion durations may be required for patients with augmented renal clearance [55,56]. Additionally, some studies report that the use of TDM increases the probability of target attainment (PTA), though further research is warranted [14,19,20].
5.1.4. Meropenem
Multiple studies have investigated the pharmacokinetics of meropenem in burn injury. Doh et al. demonstrated insufficient meropenem efficacy with standard dosing in burn patients [21]. Subsequent studies supported the use of higher doses and continuous infusion for increased effectiveness. Ramon-Lopez et al. recommended a continuous infusion of 6 g over 24 h for pathogens with higher MICs. Similarly, Selig et al. found that continuous infusion improved efficacy with Augmented renal clearance (ARC) and higher MICs [57,58]. In contrast, studies by Messiano et al. and Corcione et al. observed favorable outcomes only against pathogens with low MIC [22,59]. More recently, a study showed that the PTA increased when the treatment was guided by TDM [20].
5.1.5. Imipenem–Cilastatin
Different regimens and dosages have been utilized to examine the pharmacokinetics of imipenem–cilastatin in burn patients. Boucher et al. reported that PK parameters are comparable to those observed in healthy volunteers [23]. A daily dose of 2 g for patients with normal renal function and 1 g for patients with renal impairment achieved 100% PTA for bacteria with low MIC [60]. Moreover, pharmacokinetics studies of imipenem–cilastatin in burn patients receiving continuous renal replacement therapy (CRRT) have produced variable recommendations. One study recommended a high-dose regimen of 1 g every 6 h [23], while another study suggested a lower dose of 0.5 g every 6 h for low MIC [61]. The role of TDM has been studied and was found to be effective in guiding antibiotic treatment [20].
5.1.6. Aztreonam
Two studies evaluated the PK of aztreonam in burn patients. The findings showed altered PK that could be due to an increased volume of distribution and clearance [24]. A dosing regimen of 2 g as a loading dose, followed by 8 g administered as a continuous infusion over 24 h, was suggested; however, specific PK/PD targets were not proposed [25].
5.1.7. Novel Beta-Lactam in Combinations with Beta-Lactamase Inhibitor
A pharmacokinetic study of critically ill patients with multiple comorbidities and complications showed that a high dose of ceftazidime/avibactam may be necessary for patients with severely reduced kidney function [25]. In contrast, the use of ceftolozane-tazobactam, meropenem–vaborbactam, and imipenem–cilastatin–relebactam in burn patients has not been well studied yet.
5.1.8. Ciprofloxacin
In burn patients with normal kidney function, the recommended dose of ciprofloxacin is 400 mg every 8 h, infused over 60 min [26]. The primary PK/PD parameter is area under the curve (AUC0–24): MIC, with favorable clinical outcomes reported with a target PK/PD of AUC0–24: MIC > 125:1 in critically ill patients [26]. Moreover, a pharmacokinetic study that evaluated a ciprofloxacin 400 mg intravenously (IV) every 8 h dose in burn patients showed that this regimen achieved attainment of an AUC/MIC ratio of 125 or more for infections caused by organisms with an MIC ≤ 0.25 µg/mL; however, the type of organism was not mentioned in the study [26].
5.1.9. Levofloxacin
Levofloxacin is administered as 750 mg IV every 24 h over 90 min in burn patients’ infections [27]. Similarly to ciprofloxacin, levofloxacin’s PK/PD target is AUC0–24: MIC > 125:1 in critically ill patients [27]. This regimen achieved a probability of target attainment of greater than 90% against Gram-negative bacteria with MICs of 0.5 μg/mL or less and against Gram-positive bacteria with MICs of 1 μg/mL or less. Nevertheless, using this levofloxacin regimen in Gram-negative pathogens with MICs higher than 0.5 μg/mL was associated with inadequate achievement of the desired PK/PD target, and alternative antibiotic regimens are recommended in such cases [27].
5.1.10. Vancomycin
In burn patients, a loading dose of vancomycin is typically 25 to 30 mg/kg, and a total daily dose of 40–70 mg/kg/day administered every 6–12 h is likely required to achieve a target serum trough level of 10 to 20 mg/L. A suggested vancomycin dosing of 20 mg/kg intravenously every 8 h is recommended to achieve this target level in those patients [62,63]. The desired vancomycin target PK/PD parameter is an AUC0–24:MIC ratio of greater than 400:1 in methicillin-resistant Staphylococcus aureus infections with a vancomycin MIC of 1 mg/L [62]. However, studies on other microorganisms are still scarce. Moreover, vancomycin would require frequent monitoring of serum creatinine and obtaining of vancomycin levels in burn patients [63].
5.1.11. Daptomycin
A dose of 10–12 mg/kg of daptomycin is recommended intravenously every 24 h in burn patients [28,64]. Another approach in this population is a fixed daptomycin dose of 750 mg IV every 24 h [64]. In a pharmacokinetic study of daptomycin in burn patients, it was reported that a daptomycin dose of 6 mg/kg IV daily for Staphylococcus aureus infection resulted in a 44% and 39% decrease in AUC and Cmax, respectively [29]. Therefore, a suggested daptomycin dose of 10–12 mg/kg intravenously every 24 h is recommended and likely needed to achieve the target daptomycin PK/PD target of AUC0–24: MIC > 600:1 [28,64]. As daptomycin is known to cause rhabdomyolysis, baseline and weekly monitoring of creatine kinase (CK) levels is recommended [28].
5.1.12. Linezolid
A linezolid dose of 600 mg IV every 12 h is still recommended; however, safety and efficacy studies of high-dose linezolid in burn patients are still lacking [30]. Severe burn injury has been associated with a 50% reduction in linezolid AUC0–24 compared with non-burn patients [30]. A pharmacokinetic study evaluating a regimen of 600 mg IV every 8 h demonstrated an 87.5% increase in time above the minimum inhibitory concentration (T > MIC); however, due to considerable variability in drug concentrations among those patients, TDM is advised to minimize the risk of treatment failure or toxicity. In the absence of TDM, this high dose is not recommended [65].
5.1.13. Colistin
The recommended dose of colistin in burn patients is 150 mg of Colistin Base Activity (CBA) every 12 h, infused over 30 min [31]. One pharmacokinetic study that included 50 burn patients showed that the t1/2 of colistin (6.6 h vs. 5 h) and volume of distribution (81.1 L vs. 67.9 L) were increased compared to healthy non-burn patients. In the same study, colistin was administered as 150 mg of CBA every 12 h [62]. However, administration of higher doses might put the patients at risk of nephrotoxicity, and further studies are needed [31].
5.1.14. Aminoglycosides
Multiple studies have evaluated the pharmacokinetics of aminoglycosides (amikacin, gentamicin, and tobramycin), various dosing regimens, and therapeutic drug monitoring in burn patients. Aminoglycosides have a high-volume distribution in burn patients, requiring higher doses to achieve target serum peak concentrations [32]. For once-daily dosing of aminoglycosides, amikacin 20 mg/kg administered intravenously once daily was likely to achieve the target peak concentration (Cmax) [33].
Regarding gentamicin, one pharmacokinetic study evaluated its use in burn patients, and the administered dose was 5–7 mg/kg intravenously once daily [33]. Moreover, numerous studies have evaluated a tobramycin dose of 10 mg/kg IV once daily in burn patients, and target peak concentrations have been achieved with this dose [34,66]. In the previous studies, aminoglycosides were given mainly as a combination therapy to treat Pseudomonas aeruginosa infections. While using aminoglycosides in burn patients, serum therapeutic drug monitoring is highly recommended [32].
5.2. Antifungals
5.2.1. Liposomal Amphotericin B
Liposomal amphotericin B is a lipid formulation of amphotericin B with broad-spectrum antifungal activity. In burn patients, the recommended dose is 5–6 mg/kg IV once daily [51]. A case report also described successful treatment of a rare fungal infection in a burn patient using 6 mg/kg IV once daily [67].
5.2.2. Azoles (Fluconazole, Voriconazole, Posaconazole, Isavuconazole)
Among azoles, Fluconazole: The most extensively studied antifungal in burn patients. For Candida albicans, 400 mg IV once daily is recommended, while for Candida glabrata, a higher dose of 800 mg IV once daily is preferred [35]. Evidence suggests that a standard dose of 400 mg may still achieve effective concentrations in burn patients [67]. Pharmacokinetic studies in this population demonstrate a decreased half-life, increased clearance, and increased volume of distribution for fluconazole [68].
Voriconazole: therapeutic drug monitoring (TDM)- guided therapy is required. Partcularly in those with altered pharmacokinetics such as burn patients.
Recommended regimen is 6 mg/kg IV every 12 h for the first two doses, followed by 4 mg/kg IV every 12 h [69].
Posaconazole: although it is highly used for prophylaxis in high-risk patients, it can be used also as salvage therapy for resistant fungal infection (e.g., aspergillosis). TDM-guided therapy is recommended and caution is necessary regarding drug-drug interactions.
For IV or delayed-release tablets, 300 mg every 12 h as a loading dose, then 300 mg once daily. For oral suspension, 200 mg every 6 h is suggested, with therapeutic drug monitoring [51,69].
Isavuconazole: Standard dosing is 200 mg IV every 8 h for six doses as a loading regimen, followed by 200 mg IV once daily. Successful use of this regimen in a burn patient with mucormycosis has been reported [6,70].
5.2.3. Echinocandins
Standard dosing of anidulafungin and caspofungin can be used in burn patients. However, micafungin requires adjustment, with 150 mg IV once daily recommended [8].
6. Expert Opinion and Future Directions
6.1. Optimizing Antimicrobial Dosing and Therapeutic Drug Monitoring in Burn Patients
Improving infection management in burn patients requires focused research on how burn injuries alter the PK/PD profiles of commonly used antimicrobials. Burn-related physiological changes—such as increased capillary permeability, fluid shifts, hypermetabolism, altered protein binding, and augmented renal clearance—can significantly impact drug absorption, distribution, metabolism, and elimination. These alterations often lead to subtherapeutic antimicrobial levels if standard dosing is applied without adjustment [5].
Therefore, dosing strategies should be tailored to the unique PK/PD changes in burn patients, particularly for widely used antibiotics, as inappropriate dosing increases the risk of treatment failure and antimicrobial resistance.
Importantly, the optimal dosing and infusion regimens of newer agents, such as β-lactam/β-lactamase inhibitor combinations (e.g., ceftolozane–tazobactam, imipenem–cilastatin–relebactam, meropenem–vaborbactam), remain poorly defined in critically ill burn populations.
Future research should also prioritize the role of therapeutic drug monitoring (TDM), especially for time-dependent antibiotics where efficacy depends on maintaining free drug concentrations above the minimum inhibitory concentration (fT > MIC). Establishing standardized TDM protocols could help ensure consistent and effective antimicrobial therapy in this high-risk group.
6.2. Renal Function, Drug Interactions, and Burn Edema Considerations
Monitoring renal function in burn patients receiving antimicrobials is essential, particularly for agents predominantly eliminated by the kidneys. Evidence on the safety of high-dose antimicrobial use in this population remains limited; to date, only one study has specifically examined imipenem/cilastatin dose adjustment in renally impaired burn patients to reduce the risk of neurotoxicity [60]. Other nephrotoxic antimicrobials, such as vancomycin and aminoglycosides, require TDM to mitigate nephrotoxicity risk [32,63], while colistin therapy necessitates more frequent renal function monitoring [31]. In practice, renal dose adjustment recommendations for burn patients should follow the same principles as for non-burn patients.
In addition to renal considerations, potential drug–drug interactions (DDIs) must be carefully assessed when initiating antimicrobial therapy in burn patients. Azole antifungals, including voriconazole and posaconazole, are particularly prone to clinically significant interactions that may compromise efficacy or increase toxicity, highlighting the importance of DDI screening before initiation [69].
Another critical factor is the effect of burn-related edema on antimicrobial pharmacokinetics. Edematous tissue may act as a reservoir, altering drug distribution and elimination. For example, one study demonstrated prolonged ceftazidime half-life despite increased clearance, attributed to drug diffusion into edema fluid, which delayed redistribution into systemic circulation [15].
6.3. Antibiotic Prophylaxis in Burn Patients
Antibiotic prophylaxis is an important consideration in critically ill burn patients at high risk of infection. However, its use is indicated only in specific high-risk scenarios, and current evidence is limited, with few clinical studies providing guidance on optimal patient care [36]. This lack of robust data contributes to substantial variability in clinical practice and may lead to overuse of broad-spectrum antibiotics, increasing the risk of antimicrobial resistance. Future clinical research should focus on identifying burn patient populations that would benefit most from targeted prophylaxis.
6.4. Infection Prevention Strategies and Antimicrobial Stewardship
Beyond dosing and prophylaxis, infection prevention remains the cornerstone of managing burn patients. Effective strategies include meticulous wound care, strict hand hygiene, and thorough environmental decontamination [1,71]. Successful implementation requires coordinated collaboration among all healthcare professionals, including burn surgeons, physicians, pharmacists, nurses, microbiologists, and the infection control team.
In parallel, antimicrobial stewardship programs are critical for optimizing infection management in burn patients. Such programs should integrate local antibiograms, institutional formulary policies, and the specific pharmacokinetic alterations observed in burn patients to guide appropriate antimicrobial selection and dosing, thereby minimizing resistance and enhancing treatment outcomes.
7. Limitations
This narrative review has several limitations. First, it does not follow a systematic methodology, which may introduce selection bias in the included literature. Second, the studies reviewed are highly heterogeneous in terms of design, sample size, and methodological quality. This variability limits the ability to draw firm or generalizable conclusions. Additionally, many of the included data come from small-scale studies or individual case reports, which further reduces the strength of the evidence and its applicability to broader patient populations. As such, the findings presented should not be interpreted as prescriptive dosing recommendations, but rather as a summary of the available data to inform future research and clinical consideration. Third, this review focused on antimicrobial considerations; however, other important aspects of infection management, such as wound care techniques and nutritional status, may not be adequately addressed. Finally, multicenter clinical studies are necessary to develop comprehensive and practical clinical decision-support tools and dosing algorithms that take into account the significant pharmacokinetic changes in critically ill burn patients. Such tools will assist clinicians to explore the available evidence in decisions at the patient’s bedside, which are based on real-time clinical data, therapeutic drug monitoring results, and susceptibility patterns. Additionally, personalized antimicrobial therapy, in cooperation with antimicrobial stewardship, should be provided, especially in burn patients who exhibit significant variability in patient characteristics. This represents a promising pathway that can be achieved through precision dosing and antimicrobial stewardship to improve outcomes and preserve antibiotic efficacy in this vulnerable population.
8. Conclusions
In conclusion, prophylactic systemic antibiotics are generally not beneficial for burn patients, although select high-risk groups may gain limited benefit; infection control remains the cornerstone of prevention. Treatment should be guided by local resistance patterns, most commonly targeting Pseudomonas aeruginosa and MRSA, while antifungals are reserved for high-mortality fungal infections. Given the PK/PD alterations in burn patients, individualized antimicrobial dosing, therapeutic drug monitoring, and stewardship are crucial for optimizing outcomes. The variability in the existing evidence highlights the need for further high-quality research to strengthen the foundations of infection management in burn patients.
Author Contributions
All authors critically revised the manuscript, agreed to be fully accountable for ensuring the integrity and accuracy of the work, and read and approved the final manuscript. All authors have read and agreed to the published version of the manuscript.
Funding
This research received no external funding.
Data Availability Statement
Not Applicable.
Acknowledgments
We express our appreciation to all researchers affiliated with the Saudi Critical Care Pharmacy Research (SCAPE) platform and the supporters from the Saudi Society for Multidisciplinary Research Development and Education for their invaluable assistance in this project. Additionally, we extend our heartfelt gratitude to Walaa Alshahrani for her dedicated support and insightful contributions, which significantly enhanced the quality of this work. We would like to thank the Deanship of Scientific Research at Shaqra University for supporting this work.
Conflicts of Interest
The authors declare no conflicts of interest.
Abbreviation
| PK | Pharmacokinetics |
| PD | Pharmacodynamics |
| MRSA | Methicillin-resistant Staphylococcus aureus |
| MDR | Multidrug-resistant |
| Cmax | Maximum serum concentration |
| t1/2 | Half-life |
| RCTs | Randomized controlled trials |
| TBSA | Total body surface area |
| TDM | Therapeutic drug monitoring |
| MIC | Minimum inhibitory concentration |
| PTA | Probability of target attainment |
| ARC | Augmented renal clearance |
| CRRT | Continuous renal replacement therapy |
| AUC | Area under the curve |
| IV | Intravenous |
| CK | Creatine kinase |
| T > MIC | Time above the minimum inhibitory concentration |
| CBA | Colistin Base Activity |
| fT > MIC | Time that free drug concentrations remain above the minimum inhibitory concentration |
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