Liposomal Amphotericin B and Isavuconazole/Posaconazole in Br-IFD（ Breakthrough Invasive Fungal Disease） in Patients With Malignant Hematological Diseases

This is a prospective, open label, controlled, single center real-world observational study. Adult (aged ≥ 18 years) patients with hematological malignancies develop breakthrough invasive fungal disease after receiving ≥ 7 days of echinocandin or triazole antifungal prophylaxis receive treatment with liposomal amphotericin B or treatment with Isavuconazole or posaconazole according to the clinical doctor's decision. It is planed to collect 36 patients receiving treatment with liposomal amphotericin B and 36 patients receiving treatment with Isavuconazole or posaconazole, and observe their efficacy and safety. The research objective of this study is to: 1. Evaluate efficacy: The main objective is to determine the therapeutic effect of L-AmB (liposomal amphotericin B) or Isavuconazole/posaconazole on breakthrough invasive fungal disease, including percentage of patients with favorable overall response, survival rate, median to fever remission time, length of hospital stay, etc.2. Evaluate safety: Study the safety of drugs, including monitoring and recording all adverse events, side effects, and drug-related toxicity. 3. Patient population analysis: Study the differences in response to treatment with liposomal amphotericin B and Isavuconazole/posaconazole among different patient populations (such as different ages, genders, and underlying disease states). These research objectives will contribute to a comprehensive understanding of the roles of L-AmB and Isavuconazole/posaconazole in the treatment of breakthrough fungal infections, and provide scientific evidence for clinical practice.