Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 95
Filter
1.
Exp Clin Transplant ; 22(Suppl 1): 299-309, 2024 Jan.
Article in English | MEDLINE | ID: mdl-38385416

ABSTRACT

OBJECTIVES: COVID-19, which began in Wuhan, China, in December 2019, has caused a large global pandemic and poses a serious threat to public health. As of March 20, 2023, over 13 billion COVID-19 vaccine doses had been administered worldwide, with the United States accounting for almost 672 million of total administered vaccine doses. Some COVID-19 patients experience sudden and rapid deterioration with onset of fatal cytokine storm syndrome, which increased interest in the mechanisms, diagnosis, and therapy of cytokine storm syndrome. Although the prototypic concept of cytokine storm syndrome was first proposed 116 years ago, we have only begun to study and understand it over the past 30 years. Clinical data suggest that Th1, Th2, and Th3 and macrophage origin cytokines have effects on cytokine storm syndrome. We aimed to study the effects of cytokine gene polymorphisms in cytokine storm syndrome mechanisms and progression of COVID-19 among kidney transplant recipients. MATERIALS AND METHODS: We screened 309 patients who had undergone kidney transplant at the Hamad Al Essa organ transplant center. From February 2020 through February 2022, 64 patients (20.7%) developed COVID-19 infection. Patient blood samples were screened for the key Th1, Th2, Th3, and macrophage cytokines gene polymorphisms. RESULTS: We observed that only transforming growth factor-ß C (+869) T codon 10, but not interferon-γ T (+874) A, interleukin 6 G (-174) C, and interleukin 4C (-490) T, was significantly associated with progression of COVID-19 and cytokine storm syndrome mechanisms (P < 0.001). CONCLUSIONS: Our finding can be a profoundly important factor in the initiation of cytokine storm syndrome and progress of COVID-19.


Subject(s)
COVID-19 , Cytokine Release Syndrome , Kidney Transplantation , Transforming Growth Factor beta1 , Humans , Cytokine Release Syndrome/diagnosis , Cytokines , Kuwait/epidemiology , Polymorphism, Genetic , SARS-CoV-2 , Transforming Growth Factor beta1/genetics
2.
Exp Clin Transplant ; 22(Suppl 1): 128-140, 2024 Jan.
Article in English | MEDLINE | ID: mdl-38385386

ABSTRACT

OBJECTIVES: Diabetes knowledge among kidney transplant recipients with posttransplant diabetes has not been clearly assessed. We evaluated whether diabetes education in kidney transplant recipients with posttransplant diabetes affected self-care, metabolic control variables, and reversibility of early diabetic microangiopathies. MATERIALS AND METHODS: In this prospective randomized controlled study, we enrolled 210 renal transplant recipients with posttransplant diabetes. Group 1 patients (n = 140) received structured diabetes education, and group 2 patients (n = 70) received conventional education. Patient data were collected through patient identification and metabolic control parameter forms and a diabetes self-care scale questionnaire (scores between 0 and 7). RESULTS: Diet knowledge improved and waist circumference was reduced with mild to moderate exercise in group 1 (P < .001), despite no differences between the 2 groups in mean body weight or body mass index. Patients in group 1 (structured diabetes education with repeated reinforcement) showed significant improvement in healthy lifestyle parameter scores versus group 2 (P < .05) and versus values before education (P < .05). At end of study, these achievements were translated into proper blood sugar monitoring, management of both hypoand hyperglycemia, improvements in logbook use and healthy sharp disposal, Ramadan fasting, sick day management, and knowledge on the importance of HbA1c (P < .05), which translated to decrease of HbA1c in group 1 by 1.35%. In group 1, proteinuria decreased significantly compared with before education and compared with group 2 values (P = .016). Diabetic retinopathy and neuropathy remained comparable between groups (P > .05). CONCLUSIONS: Structured diabetes education improved lifestyle knowledge, self-care diabetes management, and metabolic control variables among kidney transplant recipients with posttransplant diabetes. Structured diabetes education also resulted in partial reversibility of the present early diabetic nephropathy. We recommended such education to be delivered to all kidney transplant recipients with diabetes.


Subject(s)
Diabetes Mellitus , Diabetic Nephropathies , Kidney Transplantation , Humans , Kidney Transplantation/adverse effects , Glycated Hemoglobin , Self Care , Prospective Studies , Diabetic Nephropathies/diagnosis , Diabetic Nephropathies/etiology , Diabetic Nephropathies/therapy , Healthy Lifestyle
3.
Exp Clin Transplant ; 22(Suppl 1): 200-206, 2024 Jan.
Article in English | MEDLINE | ID: mdl-38385398

ABSTRACT

OBJECTIVES: It remains unclear whether posttransplant outcomes differ according to the pretransplant dialysis modality (peritoneal dialysis vs hemodialysis). Our aim was to assess posttransplant outcomes in patients with different predialysis modalities. MATERIALS AND METHODS: Two thousand two hundred fifty-eight kidney recipients following up in Hamed Alessa Organ transplant center in Kuwait were included and divided into two groups according to pre-transplant dialysis modality: Group 1: those who received hemodialysis (HD) and group 2: those with peritoneal dialysis (PD). Demographics, pretransplant and posttransplant comorbidities, and patient and graft outcomes were studied. RESULTS: There were 1956 patients on hemodialysis, and 302 patients were on peritoneal dialysis. Most were male patients (1456 vs 802 female patients), with comparable mean age (P = .34). Chronic glomerulonephritis and diabetic nephropathy represented the most common original kidney disease before transplant (27.6% and 21.4%, respectively), with higher prevalence of glomerulonephritis in group 1 and diabetic nephropathy in group 2 (P = .001). The 2 groups were comparable with regard to immunosuppression (induction and maintenance) (P > .05). Posttransplant diabetes and hypertension were significantly higher in the hemodialysis group (P = .004 and P = 003, respectively). There was no significant difference between the 2 groups with regard to the graft outcome (P = .86). However, patient survival was significantly higher in the hemodialysis group (81.2% vs 64.4%). CONCLUSIONS: Compared with peritoneal dialysis, pretransplant hemodialysis is associated with better posttransplant patient survival despite no difference in the graft outcome. Diabetes-related complications could be attributed to such outcomes.


Subject(s)
Diabetic Nephropathies , Glomerulonephritis , Kidney Transplantation , Humans , Male , Female , Renal Dialysis/adverse effects , Diabetic Nephropathies/etiology , Kidney Transplantation/adverse effects , Treatment Outcome , Glomerulonephritis/diagnosis , Glomerulonephritis/therapy , Glomerulonephritis/etiology , Graft Survival , Retrospective Studies
4.
Exp Clin Transplant ; 22(Suppl 1): 290-298, 2024 Jan.
Article in English | MEDLINE | ID: mdl-38385415

ABSTRACT

OBJECTIVES: Renal complications of COVID-19 are not yet well studied. We aimed to evaluate acute kidney injury prevalence among hospitalized patients with COVID-19 infection and explore its effect on patient outcomes. MATERIALS AND METHODS: We retrospectively evaluated 586 hospitalized patients with COVID-19. Of these patients, 267 (45.5%) developed acute kidney injury, as classified according to the Kidney Disease Improving Global Outcomes guidelines. We compared this group with 319 patients (54.5%) without acute kidney injury. RESULTS: Most patients in both study groups were men; mean age was 60.8 ± 14 versus 51.7 ± 16 years. Comorbid conditions that were substantially predominant among patients with acute kidney injury were diabetes mellitus (64% vs 42.9%), hypertension (72.6% vs 43.5%), and ischemic heart disease (25% vs 14.7%). Fever, cough, shortness of breath, and dehydration were the main presentations among patients with acute kidney injury, and patients in this group had greater prevalence of radiological findings concordant with COVID-19 (86.8% vs 59.8%). Sepsis, volume depletion, shock, arrhythmias, and acute respiratory distress syndrome were higher in patients with acute kidney injury. Anticoagulation (85% vs 59.2%), vasopressors, plasma infusions, antimicrobials, and steroids were more frequently used in patients with acute kidney injury. More patients with acute kidney injury had acute respiratory failure requiring mechanical ventilation (62.3% vs 32.9%), with higher overall mortality rate (63.2% vs 31.1%). CONCLUSIONS: We found more frequent prevalence of acute kidney injury associated with severe COVID-19 than shown in reports from Chinese, European, and North American cohorts. Patients with COVID-19 who developed acute kidney injury had risk factors such as hypertension and diabetes, greater need for mechanical ventilation, were males, and were older age. Mortality was high in this population, especially among older patients and those who developed Kidney Disease Improving Global Outcomes stage 3 disease.


Subject(s)
Acute Kidney Injury , COVID-19 , Hypertension , Male , Humans , Middle Aged , Aged , Female , COVID-19/diagnosis , COVID-19/therapy , SARS-CoV-2 , Retrospective Studies , Hypertension/diagnosis , Hypertension/epidemiology , Risk Factors , Acute Kidney Injury/diagnosis , Acute Kidney Injury/epidemiology , Acute Kidney Injury/therapy
5.
Exp Clin Transplant ; 22(Suppl 1): 315-322, 2024 Jan.
Article in English | MEDLINE | ID: mdl-38385418

ABSTRACT

OBJECTIVES: The benefits of reduction in low-density lipoprotein cholesterol by evolocumab by nearly 60% has not been evaluated among kidney transplant recipients to our knowledge. We assessed the efficacy and safety of evolocumab, a proprotein convertase subtilisin/kexin-9 inhibitor, in reducing lipids and cardiovascular events among kidney transplant recipients in a randomized controlled study. MATERIALS AND METHODS: Between June 2017 and June 2019, we enrolled 197 kidney transplant recipients with high cardiovascular risk score (>20). Patients who received evolocumab (140 mg/2 weeks) comprised group 1 (n = 98), and patients maintained on statin therapy comprised group 2 (n = 99). We followed patients clinically and with necessary laboratory investigations over 24 months. RESULTS: The 2 groups had comparable demographic characteristics (P > .05). Before enrollment in the study, smokers were significantly more prevalent in group 1, whereas posttransplant diabetes mellitus was more prevalent in group 2 (P = .033). Moreover, baseline serum creatinine was higher in group 1, whereas immunosuppression was equivalent in both groups (P > .05). We found no significant differences between the 2 groups concerning cardiovascular events, and both graft and patient outcomes were comparable (P > .05). The higher baseline cholesterol in group 1 (5.5 vs 4.7 mmol/L; P < .001) decreased significantly after 3 months and thereafter (P = .031) compared with levels in group 2 and baseline values (P < .001). We reported 2 cases of acute myocardial infarction and 1 atrial fibrillation in group 2. CONCLUSIONS: Proprotein convertase subtilisin/kexin-9 inhibitors, as an added therapy to statins, are safe and effective in treating hypercholesterolemia after kidney transplant. Evolocumab can minimize cardiovascular events after kidney transplant in patients with high events at baseline. Longer-term trials with larger number of patients are needed to confirm its beneficial effects on cardiovascular complications and patient and graft survival.


Subject(s)
Cardiovascular Diseases , Hypercholesterolemia , Kidney Transplantation , PCSK9 Inhibitors , Humans , Cardiovascular Diseases/diagnosis , Cardiovascular Diseases/prevention & control , Cholesterol, LDL , Heart Disease Risk Factors , Hypercholesterolemia/diagnosis , Hypercholesterolemia/drug therapy , Kidney Transplantation/adverse effects , PCSK9 Inhibitors/adverse effects , Proprotein Convertases , Risk Factors , Subtilisin
6.
Exp Clin Transplant ; 22(Suppl 1): 348-353, 2024 Jan.
Article in English | MEDLINE | ID: mdl-38385425

ABSTRACT

Paradoxical embolism occurs when a thrombus crosses an intracardiac defect into the systemic circulation. Here, we present the case of a 35-yearold male kidney transplant recipient with a cerebral paradoxical embolism associated with a spontaneous venous thromboembolism. This patient had recurrent deep venous thrombosis and showering emboli to the lung and paradoxically to the brain through patent foramen ovale, and we treated him successfully. The role of bubble echocardiography was essential in diagnosis to avoid contrast-induced nephropathy. This is the first successfully managed case of a kidney transplant recipient with recurrent idiopathic deep vein thrombosis, pulmonary embolism, and cerebral paradoxical embolism. Bubble echocardiography was an excellent alternative to contrast angiography to avoid nephrotoxicity. Vitamin K antagonists are superior to direct oral anticoagulants, especially among nonadherent/noncompliant patients.


Subject(s)
Embolism, Paradoxical , Foramen Ovale, Patent , Kidney Transplantation , Pulmonary Embolism , Venous Thrombosis , Humans , Male , Adult , Embolism, Paradoxical/diagnostic imaging , Embolism, Paradoxical/etiology , Embolism, Paradoxical/surgery , Kidney Transplantation/adverse effects , Pulmonary Embolism/diagnostic imaging , Pulmonary Embolism/drug therapy , Pulmonary Embolism/etiology , Venous Thrombosis/diagnostic imaging , Venous Thrombosis/drug therapy , Venous Thrombosis/etiology , Foramen Ovale, Patent/complications , Anticoagulants/therapeutic use
7.
Exp Clin Transplant ; 22(Suppl 1): 323-331, 2024 Jan.
Article in English | MEDLINE | ID: mdl-38385419

ABSTRACT

OBJECTIVES: Posttransplant anemia might be associated with cardiovascular morbidity and increased mortality. To our knowledge, the debate on anemia correction has neither been revisited nor decided definitively. We aimed to assess the effects of full correction of posttransplant anemia on the cardiovascular system and quality of life among renal transplant recipients with stable graft function who were using erythropoietin-stimulating agents. MATERIALS AND METHODS: We enrolled 247 kidney recipients with stable graft function to be assessed for anemia. Eligible patients were randomized to achieve targeted hemoglobin of 11 to 12 g/dL (group 1, n = 183) or of 13 to 15 g/dL (group 2, n = 64) with the use of erythropoietin-stimulating agents. Patients underwent monthly clinical and laboratory evaluations of kidney graft function. Quality of life and echocardiography were assessed at study start and at 12 months. RESULTS: The 2 groups were comparable regarding pretransplant characteristics. In group 2, we observed comparable posttransplant complications (P > .05) but better graft function at 6 months and better cardiac indexes at 1 year of the study (P < .05). At 12 months, quality of life had improved after full correction of posttransplant anemia in the renal transplant recipients who received erythropoietinstimulating agents. CONCLUSIONS: Full correction of posttransplant anemia in renal transplant recipients was associated with improved quality of life and cardiac indexes without an effect on cardiovascular comorbidity.


Subject(s)
Anemia , Erythropoietin , Kidney Transplantation , Humans , Kidney Transplantation/adverse effects , Prospective Studies , Quality of Life , Anemia/diagnosis , Anemia/drug therapy , Anemia/etiology , Erythropoietin/adverse effects , Transplant Recipients
8.
Clin Transplant ; 37(12): e15144, 2023 12.
Article in English | MEDLINE | ID: mdl-37755118

ABSTRACT

INTRODUCTION: Cardiovascular and renal complications define the outcomes of diabetic kidney transplant recipients (KTRs). The new diabetes medications have changed the management of diabetes. However, transplant physicians are still reluctant to use sodium-glucose cotransporter 2 inhibitors (SGLT2i) and Glucagon-like peptide-1 receptor agonists (GLP-1RA) post kidney transplantation due to fear of drug related complications and lack of established guidelines. PATIENTS AND METHODS: We collected 1-year follow-up data from records of 98 diabetic KTRs on SGLT2I, 41 on GLP- 1RA and 70 on standard-of-care medicines. Patients were more than 3 months post-transplant with a minimum estimated glomerular filtration rate (eGFR) of 25 ml/min/1.73 m2 . Demographic data were similar except for a slightly lower HbA1c in the control group and higher albuminuria in SGLT2i group. RESULTS: HbA1c dropped significantly by .4% in both SGLT2i and GLP-1RA compared to .05% in the control group. A significant decrease in BMI by .32 in SGLT2i and .34 in GLP-1RA was observed compared to an increase by .015 in control group. A tendency for better eGFR in study groups was observed but was non-significant except for the SGLT2i group with an eGFR above 90 (p = .0135). The usual dip in eGFR was observed in the SGLT2i group at 1-3 months. Albuminuria was significantly reduced in both study groups. Adverse events were minimal with comparable safety in all groups. CONCLUSION: The use of SGLT2i and GLP-1RA appears to be effective and safe in diabetic KTRs with good outcomes. Randomized control trials are required to confirm these findings and establish guidelines.


Subject(s)
Diabetes Mellitus, Type 2 , Kidney Transplantation , Sodium-Glucose Transporter 2 Inhibitors , Symporters , Humans , Sodium-Glucose Transporter 2 Inhibitors/therapeutic use , Sodium-Glucose Transporter 2 Inhibitors/pharmacology , Hypoglycemic Agents/therapeutic use , Glucagon-Like Peptide-1 Receptor Agonists , Diabetes Mellitus, Type 2/drug therapy , Glycated Hemoglobin , Kidney Transplantation/adverse effects , Albuminuria , Symporters/therapeutic use , Glucose , Sodium/therapeutic use
9.
Iran J Kidney Dis ; 1(1): 47-53, 2023 01.
Article in English | MEDLINE | ID: mdl-36739490

ABSTRACT

INTRODUCTION: Data regarding contrast-induced nephropathy (CIN) in kidney transplant (KT) recipients are scarce despite the distinct risk factors such as the use of immunosuppressive agents, sympathetic denervation, glomerular hyperfiltration, and high prevalence of the cardiovascular disease. This study aimed to determine the prevalence of CIN in KT recipients who received low-osmolality iodine-based contrast material (CM) for radiological assessment. METHODS: Between 2010 and 2020, 79 of the 3180 KT recipients followed at Hamed Al-Essa organ transplant center received low-osmolality iodine-based contrast for radiological assessment for various indications. Preventive measures including holding metformin, intravenous hydration, sodium bicarbonate and N-acetylcysteine were given before contrast administration. CIN was defined as an increase in serum creatinine of 25% from the baseline within 72 hours. RESULTS: The enrolled patients were divided into two groups: those who developed CIN (n = 7) and those with no increase in serum creatinine level (n = 72). The mean age of the patients was 52.1 ± 12.3 years; 44 of them were males, and the cause of end-stage kidney disease was mostly diabetic nephropathy. The pre-transplant demographics were comparable between the two groups. Fortyseven cases received contrast for coronary angiography, and 32 received it for a CT scan. The graft function deteriorated in group 1, but no significant difference was found between the two groups at the end of the study. CONCLUSION: CIN is not uncommon in KT recipients receiving CM, especially with ischemic heart disease. Risk stratification, optimizing hemodynamics, and avoiding potential nephrotoxins are essential before performing CM-enhanced studies in KT recipients.  DOI: 10.52547/ijkd.7165.


Subject(s)
Kidney Diseases , Kidney Transplantation , Male , Humans , Adult , Middle Aged , Female , Contrast Media/adverse effects , Kidney Transplantation/adverse effects , Creatinine , Kidney Diseases/chemically induced , Coronary Angiography/adverse effects
10.
J King Saud Univ Sci ; 35(1): 102441, 2023 Jan.
Article in English | MEDLINE | ID: mdl-36405649

ABSTRACT

The first defense line of the battle, healthcare workers (HCWs), faces a significant challenge in managing the current COVID-19 pandemic. An online electronic survey was sent to HCWs via email and social media networks. Socio-demographic data and work environment-related variables were assessed. Consequences of burnout (BO) were reported, e.g., elicited medical errors. Maslach burnout inventory was used to diagnose BO. Two hundred and eighty-four participants were included with a mean age of 39.83 ± 7.34 years, 70.8% worked in the COVID-19 frontline, 91.9% were followed daily updates about COVID-19, 63.7% were not satisfied with the coordination between triage and isolation, 64.4% got COVID-19 infection, 91.9% had a colleague or family member developed COVID-19 infection, and 21.5% experienced a colleague /a family member died due to COVID-19. Multivariate analysis by linear regression revealed that; working as a frontline HCW (OR 1.28, CI = 0.14-2.55) and sleep deprivation (OR 3.93, CI = 1.88-8.22) were the predictors of burnout.

11.
Exp Clin Transplant ; 20(Suppl 1): 46-54, 2022 03.
Article in English | MEDLINE | ID: mdl-35384807

ABSTRACT

OBJECTIVES: Diabetes knowledge among kidney transplant recipients with posttransplant diabetes has not been exhaustively assessed. Here, we evaluated the effects of structured diabetes education on development of diabetic micro- and macroangiopathies in kidney transplant patients with posttransplant diabetes. MATERIALS AND METHODS: This prospective randomized controlled study categorized 210 renal transplant patients with posttransplant diabetes mellitus into 2:1 groups according to type of diabetes education. Group 1 (n = 140) received structured education, and group 2 (n = 70) received conventional education. Patient data were collected through patient identification and metabolic control parameter forms. RESULTS: Most patients in groups 1 and 2, respectively, were Kuwaiti (60.7% vs 58.6%), men (57.9% vs 68.6%), and had high school-level education (43.6% vs 48.6%). Chronic glomerulonephritis was the original disease in 36.4% versus 35.4% of patients. Most patients (72.8% vs 78.6% in group 1 vs 2) received pretransplant hemodialysis. At study start, the rate of patients with diabetic neuropathy was comparable between groups (32.4% vs 27.9%). Moreover, after completion of 24 months of education, neurological evaluation by electromyograph and nerve conduction studies did not show any significant differences between the groups (P > .05). Similarly, the number of patients with fundus imaging showing retinopathy was comparable between groups at start and end of study (P > .05). Although macroangiopathic events were higher in group 1, this finding was not significant (P > .05). However, although the percentage of patients with nephropathy was comparable in both groups at start of study, the percentage decreased significantly in group 1 at 24 months after completion of education compared with group 2 and baseline value (P = .016). CONCLUSIONS: Structured diabetes education was associated with reduced diabetic nephropathy but had no significant effects on other micro- or macroangiopathies. However, we recommend education for all kidney transplant recipients with diabetes.


Subject(s)
Diabetes Mellitus , Diabetic Angiopathies , Diabetic Nephropathies , Kidney Transplantation , Diabetes Mellitus/diagnosis , Diabetes Mellitus/epidemiology , Diabetic Nephropathies/diagnosis , Diabetic Nephropathies/etiology , Humans , Kidney Transplantation/adverse effects , Kuwait/epidemiology , Male , Prospective Studies , Risk Factors , Transplant Recipients , Treatment Outcome
12.
Exp Clin Transplant ; 20(Suppl 1): 69-73, 2022 03.
Article in English | MEDLINE | ID: mdl-35384810

ABSTRACT

OBJECTIVES: Calcineurin inhibitors are the cornerstone of immunosuppression following solid-organ transplant. However, hyperkalemia may occur by multiple mechanisms affecting potassium in the distal tubule. Hyperkalemia is commonly observed in renal transplant recipients, and it is dose-dependent. Here, we evaluated the impact of fludrocortisone in the management of calcineurin inhibitor-induced hyperkalemia after renal transplant. MATERIALS AND METHODS: We evaluated newly transplanted patients who developed hyperkalemia or those with hyperkalemia who attended our outpatient renal transplant clinic (Hamed Al-Essa Organ Transplant Center, Kuwait). Clinical and laboratory parameters were collected before starting fludrocortisone (baseline values) and then at 1, 2, 4, and 8 weeks. Drug history was assessed, with any drugs that could induce hyperkalemia being discontinued (such as spironolactone); otherwise, essential drugs like prophylactic agents (sulfamethoxazole-trimethoprim) were maintained. Oral anti-hyperkalemic doses (bicarbonate, resonium calcium, fludrocortisone) were noted. RESULTS: Our study included 29 patients; most were men (aged 45.8 ± 15 years). Body weight did not significantly change after introduction of fludrocortisone (79.53 ± 24.31, 79.82 ± 23.85, 80.62 ± 24.24, 77.03 ± 20.7, and 79.21 ± 27.93 kg at baseline and at postdose week 1, 2, 4, and 8, respectively). Systolic and diastolic blood pressure levels were also similar at baseline versus postdose. Steroid doses (prednisolone) were significantly reduced over 1 month (15.7 ± 12.4, 14.1 ± 10.19, 12.6 ± 8.7, 9.5 ± 5.2, and 9.5 ± 5.2 mg/ day). Serum potassium levels significantly improved (5.18 ± 0.58, 4.9 ± 0.49, 4.8 ± 0.54, 4.8 ± 0.65, and 4.4 ± 0.72 mmol/L). Serum creatinine levels significantly improved by postdose week 8 (129.28 ± 48.9, 130.92 ± 52.2, 127.66 ± 50.9, 121.42 ± 41.7, and 124.1 ± 51.27 µmol/L). Serum bicarbonate levels remained similar. CONCLUSIONS: Fludrocortisone was a safe and effective option in management of calcineurin inhibitor-induced hyperkalemia among renal transplant recipients.


Subject(s)
Hyperkalemia , Kidney Transplantation , Adult , Bicarbonates/adverse effects , Calcineurin Inhibitors/adverse effects , Fludrocortisone/adverse effects , Humans , Hyperkalemia/chemically induced , Hyperkalemia/diagnosis , Kidney Transplantation/adverse effects , Male , Middle Aged , Potassium/adverse effects , Potassium/physiology , Treatment Outcome
13.
Exp Clin Transplant ; 20(Suppl 1): 95-99, 2022 03.
Article in English | MEDLINE | ID: mdl-35384816

ABSTRACT

OBJECTIVES: Cystinosis is the most frequent cause of the inherited renal Fanconi syndrome and is also potentially treatable. In this study, we have reported our single-center experience of the longterm outcomes of kidney transplant in patients with cystinosis. MATERIALS AND METHODS: Pediatric patients with cystinosis (n = 17) were compared with a matched control group without cystinosis (n = 126). The 2 groups were compared with regard to demographic data, posttransplant complications, and graft and patient outcomes. RESULTS: Most patients with cystinosis were male teenagers (52.9%) with comparable mean age (12.4 ± 4.1 vs 14 ± 3.1 years) versus the group without cystinosis. The 2 study groups were comparable with regard to type of dialysis, type of donor, blood group, and pretransplant comorbidities (P > .05). Patients with cystinosis received significantly more potent induction therapy (P < 0.05), but both groups were maintained on comparable immunosuppressive regimens (mostly tacrolimus based) (P > .05). Most grafts in both groups displayed immediate graft function. The percentage of patients with cystinosis with primary graft function was significantly higher than the percentage of those patients without cystinosis who had primary graft function (P = .024); this was associated with a relatively lower baseline creatinine level, although this was not significant (P > .05). Posttransplant complications, especially posttransplant diabetes, cytomegalovirus viremia, or BK nephropathy, were comparable (P > .05). Moreover, patient and graft survival rates were similar in the 2 groups (P > .05). CONCLUSIONS: Under standard immunosuppression, renal transplant and cysteamine therapy were safe with good long-term outcomes in patients with cystinosis. Studies that can include more patients and that have longer follow-up are needed to better understand the nature of this genetic disease and to discover the best treatment options.


Subject(s)
Cystinosis , Kidney Transplantation , Adolescent , Case-Control Studies , Child , Cystinosis/chemically induced , Cystinosis/diagnosis , Cystinosis/drug therapy , Graft Rejection , Graft Survival , Humans , Immunosuppressive Agents/adverse effects , Kidney Transplantation/adverse effects , Kuwait/epidemiology , Male , Treatment Outcome
14.
Exp Clin Transplant ; 20(Suppl 1): 132-135, 2022 03.
Article in English | MEDLINE | ID: mdl-35384823

ABSTRACT

Atherosclerotic renal artery stenosis is one of the risk factors for cardiovascular death and can lead to the ischemic nephropathy. In this report, we describe the successful management of ischemic nephropathy that developed in a kidney transplant recipient with graft artery stenosis. The 52-year-old male patient had diabetes and hypertension and was a nonsmoker with hypothyroidism on replacement therapy. He had a history of recurrent urinary tract infection due to vesicoureteric reflux before starting hemodialysis in July 2009. In November 2020, he received a deceased donor renal allograft and showed slow graft function. He received thymoglobulin as induction and steroid, tacrolimus, and mycophenolate mofetil as maintenance therapy. He was discharged with nadir creatinine around 130 µmol/L. His diabetes was controlled by intensive insulin regimen. Later, he presented with graft dysfunction with partially controlled hypertension and suspected graft artery stenosis by Doppler ultrasonography but no evidence of obstruction. His tacrolimus level was adequate, and his echocardiography was unremarkable. He received empirical pulse steroid. A graft biopsy showed severe acute tubular necrosis, suspicious T-cell-mediated rejection, and negative C4d and positive SV40 stain, suggesting BK nephropathy. His BK viremia (500 copies/mL) and viruria (885 billion copies/mL) improved after immunosuppression minimization, although he remained dependent on dialysis. A repeated Doppler ultrasonogram showed flattening of the systolic wave. Computed tomographic angiography revealed diffusely attenuated graft arteries. The patient received graft artery angioplasty and stenting of the 2 arteries. The patient showed good response, with same-day urine production and Doppler showing good systolic wave. His graft function started to improve, and he was discharged with stable graft function. His immunosuppressive regimen was subsequently tailored to steroid and low-dose tacrolimus. In conclusion, we found that ischemic nephropathy could be reversed if properly managed, even in presence of other comorbidities.


Subject(s)
BK Virus , Hypertension , Kidney Transplantation , Polyomavirus Infections , Renal Artery Obstruction , Constriction, Pathologic/complications , Constriction, Pathologic/drug therapy , Graft Rejection/pathology , Humans , Hypertension/complications , Immunosuppressive Agents/adverse effects , Kidney Transplantation/adverse effects , Male , Middle Aged , Polyomavirus Infections/diagnosis , Polyomavirus Infections/drug therapy , Renal Artery Obstruction/etiology , Tacrolimus/adverse effects , Treatment Outcome
15.
Exp Clin Transplant ; 20(Suppl 1): 136-139, 2022 03.
Article in English | MEDLINE | ID: mdl-35384824

ABSTRACT

Severe anemia requiring multiple blood transfusions in the posttransplant period can trigger rejection. The evaluation of anemia among transplant recipients is a challenging task. Awareness should be continued for tacrolimus to manage pure red cell aplasia, but further evidence is needed to prove whether tacrolimus is a real cause of posttransplant anemia. Our case patient, a 66-year-old male patient with end-stage renal disease due to diabetic nephropathy, underwent a preemptive living donor renal transplant in September 2018. He had received a coronary artery bypass graft with transcatheter aortic valve implantation 3 years before renal transplant. Initially, he was maintained on prednisolone, mycophenolate mofetil, and tacrolimus after basiliximab induction. One month later, he presented with low cardiac output symptoms. His complete blood count showed normocytic normochromic anemia with reticulocytopenia (his hemoglobin level dropped from 112 to 69 g/L), which necessitated regular blood transfusions. His iron profile, serum folate, and vitamin B12 were within normal limits, and he had negative hemolytic and autoimmune screening tests. A bone marrow biopsy revealed acquired pure red cell aplasia, which was most likely drug induced as viral profiles were negative for parvovirus B19, cytomegalovirus, and Epstein-Barr virus. The patient was managed by discontinuing mycophenolate mofetil, and the steroid dose was increased up to 20 mg/day but without improvement. With tacrolimus then considered, 3 weeks after presentation, we replaced tacrolimus with cyclosporine. Complete blood count follow-up showed improvement without any need for further blood transfusions. After 1 month of cyclosporine maintenance, mycophenolate mofetil was resumed with a steady increase of hemoglobin up to 150 g/L and serum creatinine of 122 µmol/L. Pure red cell aplasia is a rare disorder among renal transplant recipients, which could be induced by maintenance tacrolimus therapy.


Subject(s)
Anemia , Epstein-Barr Virus Infections , Kidney Transplantation , Red-Cell Aplasia, Pure , Aged , Anemia/etiology , Cyclosporine/adverse effects , Epstein-Barr Virus Infections/complications , Graft Rejection , Herpesvirus 4, Human , Humans , Immunosuppressive Agents/adverse effects , Kidney Transplantation/adverse effects , Male , Mycophenolic Acid/adverse effects , Red-Cell Aplasia, Pure/diagnosis , Red-Cell Aplasia, Pure/drug therapy , Red-Cell Aplasia, Pure/etiology , Tacrolimus/adverse effects , Transplant Recipients , Treatment Outcome
16.
Exp Clin Transplant ; 20(Suppl 1): 140-144, 2022 03.
Article in English | MEDLINE | ID: mdl-35384825

ABSTRACT

Nocardiosis is a life-threatening infection in immunocompromised patients. The prevalence of the disease ranges from 2.3% to 5% in renal allograft recipients. Here, we describe a case of BK nephropathy associating with nocardiosis with successful recovery. The 54-year-old male patient had end-stage kidney disease due to diabetic nephropathy associated with diabetic retinopathy, hypertension, and dyslipidemia. He started hemodialysis in October 2017; 2 years later, he underwent a deceased donor kidney transplant with 2 HLA mismatches and high panel reactive antibodies. He received desensitization with intravenous immunoglobulin and rituximab, received thymoglobulin as induction, and was maintained on prednisolone, mycophenolate mofetil, and tacrolimus. His serum creatinine decreased to a nadir of 90 µmol/L. He developed graft dysfunction, which was proven to be due to BK nephropathy. Therefore, mycophenolate mofetil was replaced with leflunomide in addition to intravenous immunoglobulin therapy. Ten months later, he had an accidental fall and sought an orthopedic evaluation. Magnetic resonance imaging of the lumbar spine and pelvis revealed lumbar spondylosis, avascular necrosis of the femoral head, and obturator muscle abscess. He was explored surgically, but the surgeon found no abscess or avascular hip necrosis. The patient's blood grew Nocardia, and he was readmitted and started imipenem and linezolid empirically. Brain and chest computed tomography scans ruled out any central nervous system or pulmonary involvement, but a bone scan revealed osteomyelitis of the right superior pubic ramus and prepubic swelling, which was confirmed by computed tomography to be an abscess in both obturator externus and internus. He continued the same antibiotics for 6 months based on culture and sensitivity. At follow-up, the patient has shown stable graft function (creatinine 155 µmol/L) with improved BK viremia with immunosuppression minimization. In renal transplant recipients, successful management of combined BK nephropathy and nocardiosis was feasible with minimization of immunosuppression and proper antimicrobial therapy.


Subject(s)
BK Virus , Kidney Diseases , Kidney Transplantation , Nocardia Infections , Polyomavirus Infections , Tumor Virus Infections , Abscess , Creatinine , Graft Rejection , Humans , Immunoglobulins, Intravenous , Immunosuppressive Agents/adverse effects , Kidney Transplantation/adverse effects , Male , Middle Aged , Mycophenolic Acid , Nocardia Infections/diagnosis , Nocardia Infections/drug therapy , Polyomavirus Infections/diagnosis , Polyomavirus Infections/drug therapy , Treatment Outcome
17.
J Mycol Med ; 31(4): 101196, 2021 Dec.
Article in English | MEDLINE | ID: mdl-34418686

ABSTRACT

Rhinocladiella mackenziei is a rare fungal pathogen which belongs to a large group of pigmented fungi causing phaeohyphomycosis. R. mackenziei primarily infects the brain and leads to high fatality rates among both immunocompetent and immunocompromised individuals. Among solid organ transplant recipients, the infection may disseminate to extra-neuronal sites, necessitating comprehensive radiologic imaging. Here we describe a new case of R. mackenziei infection in a renal transplant patient involving the brain and renal allograft. She received liposomal amphotericin B and voriconazole but no surgical intervention. Ultimately, the patient died after two months of hospital stay. A review of all reported cases of transplant patients infected with R. mackenziei is also presented.


Subject(s)
Ascomycota , Central Nervous System Fungal Infections , Kidney Transplantation , Antifungal Agents/therapeutic use , Central Nervous System Fungal Infections/drug therapy , Female , Humans
18.
Turk Thorac J ; 22(2): 142-148, 2021 Mar.
Article in English | MEDLINE | ID: mdl-33871338

ABSTRACT

OBJECTIVE: Millions of people suffer from sleep disturbances. In addition, the coronavirus disease 2019 (COVID-19) pandemic created several new challenges-particularly for frontline healthcare workers (HCWs). This study assessed the sleep quality (SQ) among HCWs. MATERIAL AND METHODS: A cross-sectional study was conducted using an English-language online survey. The participants were invited via a web link sent using social network platforms. It included sociodemographic- and profession-related characteristics. COVID-19-associated risks were assessed (e.g., being on the front line, doing swabs, satisfaction about protective equipment, and management protocols). Assessment of SQ was done using the Pittsburgh Sleep Quality Index (PSQI) and various medical errors were recorded. RESULTS: A total of 217 HCWs completed the survey with mean (±standard deviation) age of 35.8 (±7.3) years; 56.2% were male, 18.43% had comorbidities, and 61.75% experienced sleep difficulties before the COVID-19 crisis. This work reports a 78.8% prevalence of poor SQ, with the mean (standard deviation) global PSQI score of 9.36 (±4.4). HCWs with poor sleep experienced more positive comorbid profile (23.64% versus 6.52%, p=0.01). Working on the front lines of COVID-19 was associated with poor sleep (69.59% versus 47.83%, p=0.006). Among the participants, 77.42% performed medical errors, particularly not checking for drug allergies (17.97%), dispensing medication with incomplete instructions (20.74%), providing incorrect doses or overdosing (14.75%), incorrectly explaining the use of medication (9.22%), and prescribing a drug to the wrong patient (10.14%). CONCLUSION: This nationwide survey reported high prevalence of poor SQ among HCWs during the COVID-19 pandemic. Being an HCW on the front lines of COVID-19 and doing swabs with a positive comorbidity was associated with poor sleep.

19.
Clin Transplant ; 35(6): e14297, 2021 06.
Article in English | MEDLINE | ID: mdl-33768630

ABSTRACT

INTRODUCTION: COVID-19 is an ongoing pandemic with high morbidity and mortality and with a reported high risk of severe disease in kidney transplant recipients (KTR). AIM: We aimed to report the largest number of COVID-19-positive cases in KTR in a single center and to discuss their demographics, management, and evolution. METHODS: We enrolled all the two thousand KTR followed up in our center in Kuwait and collected the data of all COVID-19-positive KTR (104) from the start of the outbreak till the end of July 2020 and have reported the clinical features, management details, and both patient and graft outcomes. RESULTS: Out of the one hundred and four cases reported, most of them were males aged 49.3 ± 14.7 years. Eighty-two of them needed hospitalization, of which thirty-one were managed in the intensive care unit (ICU). Main comorbidities among these patients were hypertension in 64.4%, diabetes in 51%, and ischemic heart disease in 20.2%. Management strategies included anticoagulation in 56.7%, withdrawal of antimetabolites in 54.8%, calcineurin inhibitor (CNI) withdrawal in 33.7%, the addition of antibiotics in 57.7%, Tocilizumab in 8.7%, and antivirals in 16.3%. During a follow-up of 30 days, the reported number of acute kidney injury (AKI) was 28.7%, respiratory failure requiring oxygen therapy 46.2%, and overall mortality rate was 10.6% with hospital mortality of 13.4% including an ICU mortality rate of 35.5%. CONCLUSION: Better outcome of COVID-19-positive KTR in our cohort during this unremitting stage could be due to the younger age of patients and early optimized management of anticoagulation, modification of immunosuppression, and prompt treatment of secondary bacterial infections. Mild cases can successfully be managed at home without any change in immunosuppression.


Subject(s)
COVID-19 , Kidney Transplantation , Anticoagulants/therapeutic use , Female , Humans , Immunosuppression Therapy , Kidney Transplantation/adverse effects , Male , Retrospective Studies , SARS-CoV-2 , Transplant Recipients
20.
Sci Rep ; 11(1): 6014, 2021 03 16.
Article in English | MEDLINE | ID: mdl-33727573

ABSTRACT

New Onset Diabetes After Transplantation (NODAT) is a serious metabolic complication. While ß-cell dysfunction is considered the main contributing factor in the development of NODAT, the precise pathogenesis is not well understood. Cytokines are thought to be involved in the inflammation of islet ß-cells in diabetes; however, few studies have investigated this hypothesis in NODAT. A total of 309 kidney transplant recipients (KTRs) were included in this study. An association between kidney transplants, and the development of diabetes after transplant (NODAT) was investigated. Comparison was made between KTRs who develop diabetes (NODAT cases) or did not develop diabetes (control), using key cytokines, IL-6 G (- 174)C, macrophage mediator; IL-4 C (- 490)T, T helper (Th)-2 cytokine profile initiator; Th-1 cytokine profile initiator interferon-γ T (+ 874) A gene and TGF ß1 C (+ 869) T gene polymorphisms were investigated. The genes were amplified using well-established polymerase chain reaction (PCR) techniques in our laboratory. Compared to the AA and AT genotypes of interferon gamma (IFNG), there was a strong association between the TT genotype of IFNG and NODAT kidney transplant recipients (KTRs) versus non-NODAT KTRs (p = 0.005). The AA genotype of IFNG was found to be predominant in the control group (p = 0.004). Also, significant variations of IL6 G (- 174) C, IL-4 C (- 590) T, interferon-γ T (+ 874) A gene and transforming growth factor ß1 C (+ 869) T may contribute to NODAT. Our data is consistent with theTh-1/T-reg pathway of immunity. Further larger pan Arab studies are required to confirm our findings.


Subject(s)
Cytokines/genetics , Diabetes Mellitus , Kidney Transplantation , Polymorphism, Single Nucleotide , Adult , Diabetes Mellitus/etiology , Diabetes Mellitus/genetics , Female , Humans , Male , Middle Aged
SELECTION OF CITATIONS
SEARCH DETAIL
...