Cryptococcosis is the third most commonly occurring invasive fungal disease in solid organ transplant recipients(SOT).It is caused by encapsulated yeast,Cryptococcus species,predominantly Cryptococcus neoformans and C...Cryptococcosis is the third most commonly occurring invasive fungal disease in solid organ transplant recipients(SOT).It is caused by encapsulated yeast,Cryptococcus species,predominantly Cryptococcus neoformans and Cryptococcus gattii.Though kidney transplant recipients are at the lowest risk of cryptococcosis when compared to other solid organ transplant recipients such as lung,liver or heart,still this opportunistic infection causes significant morbidity and mortality in this subset of patients.Mortality rates with cryptococcosis range from 10%-25%,while it can be as high as 50%in SOT recipients with central nervous system involvement.The main aim of diagnosis is to find out if there is any involvement of the central nervous system in disseminated disease or whether there is only localized pulmonary involvement as it has implications for both prognostication and treatment.Detection of cryptococcal antigen(CrAg)in cerebrospinal fluid or plasma is a highly recommended test as it is more sensitive and specific than India ink and fungal cultures.The CrAg lateral flow assay is the single point of care test that can rapidly detect cryptococcal polysaccharide capsule.Treatment of cryptococcosis is challenging in kidney transplant recipients.Apart from the reduction or optimization of immunosuppression,lipid formulations of amphotericin B are preferred as induction antifungal agents.Consolidation and maintenance are done with fluconazole;carefully monitoring its interactions with calcineurin inhibitors.This review further discusses in depth the evolving developments in the epidemiology,pathogenesis,diagnostic assays,and management approach of cryptococcosis in kidney transplant recipients.展开更多
Gadolinium-based contrast agents(GBCAs)used in magnetic resonance imaging are vital in providing enhanced quality images,essential for diagnosis and treatment.Nephrogenic systemic fibrosis(NSF)with GBCAs has been a de...Gadolinium-based contrast agents(GBCAs)used in magnetic resonance imaging are vital in providing enhanced quality images,essential for diagnosis and treatment.Nephrogenic systemic fibrosis(NSF)with GBCAs has been a deterrent for the physician and has led to avoidance of these agents in patients with impaired kidney function.NSF is a progressive debilitating multisystem condition described classically in patients with renal insufficiency exposed to gadolinium contrast media.It is characterized by an induration and hardening of the skin.NSF is described to first involve the extremities and can imperceptibly involve internal organs.Lack of therapeutic interventions to treat NSF makes it more challenging and warrants deep insight into the pathogenesis,risk factors and treatment strategies.展开更多
文摘Cryptococcosis is the third most commonly occurring invasive fungal disease in solid organ transplant recipients(SOT).It is caused by encapsulated yeast,Cryptococcus species,predominantly Cryptococcus neoformans and Cryptococcus gattii.Though kidney transplant recipients are at the lowest risk of cryptococcosis when compared to other solid organ transplant recipients such as lung,liver or heart,still this opportunistic infection causes significant morbidity and mortality in this subset of patients.Mortality rates with cryptococcosis range from 10%-25%,while it can be as high as 50%in SOT recipients with central nervous system involvement.The main aim of diagnosis is to find out if there is any involvement of the central nervous system in disseminated disease or whether there is only localized pulmonary involvement as it has implications for both prognostication and treatment.Detection of cryptococcal antigen(CrAg)in cerebrospinal fluid or plasma is a highly recommended test as it is more sensitive and specific than India ink and fungal cultures.The CrAg lateral flow assay is the single point of care test that can rapidly detect cryptococcal polysaccharide capsule.Treatment of cryptococcosis is challenging in kidney transplant recipients.Apart from the reduction or optimization of immunosuppression,lipid formulations of amphotericin B are preferred as induction antifungal agents.Consolidation and maintenance are done with fluconazole;carefully monitoring its interactions with calcineurin inhibitors.This review further discusses in depth the evolving developments in the epidemiology,pathogenesis,diagnostic assays,and management approach of cryptococcosis in kidney transplant recipients.
文摘Gadolinium-based contrast agents(GBCAs)used in magnetic resonance imaging are vital in providing enhanced quality images,essential for diagnosis and treatment.Nephrogenic systemic fibrosis(NSF)with GBCAs has been a deterrent for the physician and has led to avoidance of these agents in patients with impaired kidney function.NSF is a progressive debilitating multisystem condition described classically in patients with renal insufficiency exposed to gadolinium contrast media.It is characterized by an induration and hardening of the skin.NSF is described to first involve the extremities and can imperceptibly involve internal organs.Lack of therapeutic interventions to treat NSF makes it more challenging and warrants deep insight into the pathogenesis,risk factors and treatment strategies.
