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1.
Liver Transpl ; 2024 May 31.
Artigo em Inglês | MEDLINE | ID: mdl-38814160

RESUMO

The 2021 Chronic Kidney Disease Epidemiology Collaboration equation [CKD-EPI 2021] is a race-neutral equation recently developed and rapidly implemented as a reference standard to estimate glomerular filtration rate(GFR). However, its role in cirrhosis has not been examined especially in low GFR. We analyzed the performance of CKD-EPI 2021 compared to other equations with protocol measured GFR(mGFR) in cirrhosis. We analyzed 2090 unique adult patients with cirrhosis undergoing protocol GFR measurements using iothalamate clearance from 1985-2015 when listed for liver transplantation at Baylor University in Dallas and Fort Worth, Texas. Using mGFR as a reference standard, the CKD-EPI 2021 was compared to CKD-EPI 2012, MDRD-4, MDRD-6, RFH and GRAIL overall and in certain subgroups(ascites, mGFR≤30 mL/min/1.73 m 2 , diagnosis, MELD and gender). We examined bias(difference between eGFR and mGFR), accuracy(p30: eGFR within ±30% of mGFR) and agreement between eGFR and mGFR categories. CKD-EPI 2021 had the 2 nd lowest bias across the entire range of GFR after GRAIL (6.6 vs. 4.6 mL/min/1.73 m 2 , respectively, p <0.001). Accuracy of CKD-EPI 2021 was similar to CKD-EPI 2012 (p30=67.8% vs. 67.9%, respectively) that was higher than the other equations ( p <0.001). It had a similar performance in patients with ascites, by diagnoses, MELD subgroups, by sex and in non-Black patients. However, it had a relatively higher overestimation in mGFR≤30 mL/min/1.73 m 2 than most equations (18.5 mL/min/1.73m 2 , p <0.001). Specifically, 64% of patients with mGFR≤30 mL/min/1.73m 2 were incorrectly classified to a less severe CKD stage by CKD-EPI 2021. In Blacks, CKD-EPI 2021 underestimated eGFR by 17.9 mL/min/1.73 m 2 that was higher than the alternate equations except RFH ( p <0.001). The novel race-neutral eGFR equation, CKD-EPI 2021, improves the GFR estimation overall but may not accurately capture true kidney function in cirrhosis specifically at low GFR. There is an urgent need for a race-neutral equation in liver disease reflecting the complexity of kidney function physiology unique to cirrhosis given implications for organ allocation and dual organ transplant.

2.
Artigo em Inglês | MEDLINE | ID: mdl-38640201

RESUMO

To investigate the response to antidepressants while controlling for sex, which has been controversial, 92 outpatient males and females with major depressive disorder were assigned to sertraline (100 mg/day) or citalopram (40 mg/day) in two strata and were assessed using Hamilton depression rating scale (HDRS) scores and brain-derived neurotrophic factor (BDNF), interleukin (IL)-6 and cortisol serum levels in this 8-week, randomized, parallel-group, double-blind clinical trial. Data of 40 sertraline and 40 citalopram recipients with equal representation of males and females assigned to each medication were analyzed, while their baseline characteristics were not statistically different (P > 0.05). There were no significant differences between sertraline and citalopram recipients in outcome changes (P > 0.05), all of which indicated improvement, but a significant time-treatment-sex interaction effect in BDNF levels was observed (P = 0.035). Regarding this, subgroup analyses illustrated a significantly greater increase in male BDNF levels following sertraline treatment (P = 0.020) with a moderate to large effect size (Cohen's d = 0.76 and ). Significant associations were observed between percentage changes in IL-6 levels and BDNF levels in sertraline recipients (P = 0.033) and HDRS scores in citalopram recipients (P < 0.001). Sex was an effect modifier in BDNF alterations following sertraline and citalopram administration. Further large-scale, high-quality, long-term studies are recommended.

3.
Clin Transplant ; 38(4): e15295, 2024 04.
Artigo em Inglês | MEDLINE | ID: mdl-38545909

RESUMO

INTRODUCTION: Data on long-term outcomes following A2/A2B to B kidney transplants since the 2014 kidney allocation system (KAS) changes are few. The primary aim of this study is to report our 7-year experience with A2/A2B to B kidney transplants and to compare post-transplant outcomes of A2/A2B to a concurrent group of B to B kidney transplants. Additionally, the study evaluates the impact of pre-transplant anti-A1 titers on survival outcomes in A2/A2B transplants. METHODS: This retrospective, single-center analysis included all adults who received A2/A2B to B deceased donor kidney transplants from December 2014 to June 2021 compared to B to B recipients. The effects of pre-transplant IgM/IgG titers, stratified as ≤1:8 and ≥1:16, on death-censored, rejection-free, and overall graft survival were tested. RESULTS: Fifty-three A2/A2B and 114 B to B adults were included with a median follow-up time of 32 months. Overall graft survival, patient survival, and rejection-free graft survival did not differ between the two groups. There were no differences between the groups' overall kidney function values (p > .80) or their temporal trajectories (time by group interaction p > .11). Unadjusted death-censored graft survival was lower in A2/A2B to B compared to B recipients (p = .03), but the effect was not significant (p = .195) after adjusting for any readmissions (p = .96), rejection episodes (p < .001) or BK infection (p = .76). We did not detect an effect of pre-transplant titer group on death-censored (p = .59), rejection-free (p = .61), or overall graft survival (p = .26) CONCLUSIONS: A2/A2B to B kidney transplants have comparable overall patient and graft survival, rejection-free graft survival, and longitudinal renal function compared to B to B transplants at our center. Allograft survival outcomes were not significantly different between patients with low and high pre-transplant anti-A1 IgM/IgG titers.


Assuntos
Transplante de Rim , Adulto , Humanos , Estudos Retrospectivos , Incompatibilidade de Grupos Sanguíneos , Rejeição de Enxerto/etiologia , Isoanticorpos , Imunoglobulina G , Imunoglobulina M , Sobrevivência de Enxerto , Sistema ABO de Grupos Sanguíneos
4.
Am J Gastroenterol ; 119(4): 712-718, 2024 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-37938163

RESUMO

INTRODUCTION: Hospitalized patients with cirrhosis can develop respiratory failure (RF), which is associated with a poor prognosis, but predisposing factors are unclear. METHODS: We prospectively enrolled a multicenter North American cirrhosis inpatient cohort and collected admission and in-hospital data (grading per European Association for the Study of Liver-Chronic Liver Failure scoring system, acute kidney injury [AKI], infections [admission/nosocomial], and albumin use) in an era when terlipressin was not available in North America. Multivariable regression to predict RF was performed using only admission day and in-hospital events occurring before RF. RESULTS: A total of 511 patients from 14 sites (median age 57 years, admission model for end-stage liver disease [MELD]-Na 23) were enrolled: RF developed in 15%; AKI occurred in 24%; and 11% developed nosocomial infections (NI). At admission, patients who developed RF had higher MELD-Na, gastrointestinal (GI) bleeding/AKI-related admission, and prior infections/ascites. During hospitalization, RF developers had higher NI (especially respiratory), albumin use, and other organ failures. RF was higher in patients receiving albumin (83% vs 59%, P < 0.0001) with increasing doses (269.5 ± 210.5 vs 208.6 ± 186.1 g, P = 0.01) regardless of indication. Admission for AKI, GI bleeding, and high MELD-Na predicted RF. Using all variables, NI (odds ratio [OR] = 4.02, P = 0.0004), GI bleeding (OR = 3.1, P = 0.002), albumin use (OR = 2.93, P = 0.01), AKI (OR = 3.26, P = 0.008), and circulatory failure (OR = 3.73, P = 0.002) were associated with RF risk. DISCUSSION: In a multicenter inpatient cirrhosis study of patients not exposed to terlipressin, 15% of patients developed RF. RF risk was highest in those admitted with AKI, those who had GI bleeding on admission, and those who developed NI and other organ failures or received albumin during their hospital course. Careful volume monitoring and preventing nosocomial respiratory infections and renal or circulatory failures could reduce this risk.


Assuntos
Injúria Renal Aguda , Infecção Hospitalar , Doença Hepática Terminal , Humanos , Pessoa de Meia-Idade , Pacientes Internados , Doença Hepática Terminal/complicações , Índice de Gravidade de Doença , Cirrose Hepática/complicações , Injúria Renal Aguda/etiologia , Injúria Renal Aguda/complicações , Albuminas
6.
Gastroenterol Hepatol Bed Bench ; 16(4): 364-377, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38313349

RESUMO

Aim: This review sought to evaluate the significance of a functional assessment for liver transplant candidates, i.e., frailty, in the pre-transplant setting and its association with mortality and morbidities. Background: Liver transplantation (LT) remains the treatment of choice for patients with end-stage liver disease. Due to the shortage of organs for LT, a careful selection of suitable recipients is essential. Frailty, a measure of physiologic reserve and increased vulnerability to stressors, was initially used in geriatrics and then introduced to the field of transplantation for better patient selection. Methods: PubMed, Scopus, and Web of Science databases were reviewed up until January 2023. The search terms included: "frail*", "liver", and "transplant*". A Meta-analysis was conducted for the hazard ratios (HRs) obtained from the COX regression models. Fifty-five studies were included in this review; ten were included in the meta-analysis. Results: The prevalence of frailty varied from 2.82% to 70.09% in the studies. Meta-analysis showed that overall frailty had a significant association with mortality (pooled adjusted HR [95%CI]: 2.66 [1.96-3.63]). Subgroup analyses revealed that both the Liver Frailty Index and Fried Frailty Index were significantly associated with mortality. Furthermore, these studies have demonstrated that this population's frailty is associated with ascites, hepatic encephalopathy, and esophageal varices. Conclusion: According to emerging evidence, frailty is associated with increased morbidity and mortality of the patients on the LT waiting list. Further randomized trials are required to determine the efficacy and safety of variable interventions in the frail population.

7.
World J Clin Cases ; 10(23): 8097-8106, 2022 Aug 16.
Artigo em Inglês | MEDLINE | ID: mdl-36159543

RESUMO

BACKGROUND: Hepatic encephalopathy (HE) is a neurocognitive condition in cirrhosis leading to frequent hospitalizations. Nonselective beta-blockers (NSBBs) are the mainstay of pharmacologic treatment in cirrhotic patients. We hypothesized that since NSBBs decrease cardiac output and portal flow, the decreased metabolic filtering process of liver parenchyma may lead to increased HE-related hospitalizations. AIM: To evaluate the impact of NSBB administration on HE-related readmissions in cirrhotic patients. METHODS: In this retrospective cohort study, we included 393 patients admitted to Baylor University Medical Center for liver-related portal hypertension indications between January 2013 and July 2018. Independent predictors of the first HE-related readmissions were identified using Cox proportional hazards analysis. The cumulative incidence of the first HE-related readmissions between patients receiving NSBBs and not receiving NSBBs was examined using Fine-Gray modeling to account for the competing risk of death or liver transplantation. RESULTS: The mean age was 58.1 ± 10.2 years and most patients fell into Child class C (49.1%) or B (43.8%). The median Model for End-Stage Liver Disease-Sodium score was 22 (IQR: 11). The cumulative incidence of the first HE-related readmissions was significantly higher in patients taking NSBBs compared to patients not receiving NSBBs (71.8% vs 41.8%, P < 0.0001). In multivariate analysis, after adjusting for demographics, markers of liver disease severity, selective beta-blocker, lactulose and rifaximin use, NSBB use [Hazard ratio: 1.74 (95%CI: 1.29-2.34)] was independently associated with the first HE-related readmissions over a median follow-up of 3.8 years. CONCLUSION: NSBB use is independently associated with increased HE-related readmissions in patients with cirrhosis, regardless of liver disease severity.

8.
Clin Gastroenterol Hepatol ; 20(8S): S9-S19, 2022 08.
Artigo em Inglês | MEDLINE | ID: mdl-35940731

RESUMO

Hepatic encephalopathy (HE) is a potentially reversible neurocognitive complication of cirrhosis. It has been reported in at least 30% of patients with cirrhosis and imposes a significant economic burden on caregivers and the healthcare system. Ammonia has been recognized as the culprit in HE development, and all the currently approved treatments mostly act on this toxin to help with HE resolution. After a brief overview of HE characteristics and pathophysiology, this review explores the current accepted treatments for this debilitating complication of cirrhosis. This is followed by an overview of the novel available therapies and a brief focus on future treatment modalities for HE.


Assuntos
Encefalopatia Hepática , Amônia , Encefalopatia Hepática/etiologia , Encefalopatia Hepática/terapia , Humanos , Cirrose Hepática/complicações , Cirrose Hepática/terapia
9.
Kidney Med ; 4(4): 100438, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-35360084

RESUMO

Rationale & Objective: Black kidney transplant recipients have higher prevalences of cardiovascular disease (CVD) risk factors and less intensive risk factor control than White kidney transplant recipients. Our objective was to evaluate racial disparities in receipt of statins and aspirin for secondary CVD prevention among kidney transplant recipients in the Folic Acid for Vascular Outcome Reduction in Transplantation (FAVORIT) trial. Study Design: Cohort study. Setting & Participants: FAVORIT participants of White, Black, and Other races from the United States and Canada with a history of CVD at study entry or who experienced a nonfatal CVD event during follow-up. Predictor: Race. Outcome: Receipt of statins and aspirin for secondary CVD prevention. Analytical Approach: We used parametric (Weibull), proportional-hazards, interval-censored survival models to evaluate the independent association of race with receipt of statins and aspirin for secondary CVD prevention. Results: Of the 4,110 kidney transplant recipients enrolled in FAVORIT trial, 978 met the inclusion criteria (78% White, 17% Black, and 6% Other race). Compared with the White race, Black and Other races were associated with lower hazards of receiving statins (Black race: adjusted HR, 0.76 [95% CI, 0.60-0.97]; Other race: adjusted HR, 0.87 [95% CI, 0.60-1.27]) and aspirin (Black race: adjusted HR, 0.85 [95% CI, 0.67-1.08]; Other race: adjusted HR, 0.63 [95% CI, 0.43-0.94]). Limitations: Lack of granular information on potential indications or contraindications for aspirin or statin use for secondary CVD prevention. Conclusions: Post hoc findings from the FAVORIT trial demonstrated that Black race was associated with a lower likelihood of receiving statins and Other race was associated with a lower likelihood of receiving aspirin for secondary CVD prevention. This represents a potential target to improve CVD care in non-White kidney transplant recipients.

10.
Proc (Bayl Univ Med Cent) ; 35(2): 190-192, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35261448

RESUMO

Cytomegalovirus is a major opportunistic infection after transplantation with significant morbidity and mortality for solid organ transplant recipients. Unrecognized infection with Strongyloides stercoralis may result in significant morbidity and mortality in immunocompromised patients. Coinfection with multiple pathogens is possible, leading to diagnostic delays, and may make treatment more challenging. We report a case of coinfection with S. stercoralis and cytomegalovirus in a kidney transplant patient that resulted in pneumonitis, gastritis, and cholecystitis.

11.
Liver Transpl ; 28(10): 1618-1627, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-35255183

RESUMO

The role of noninvasive liver disease assessment by two-dimensional shear wave elastography (2D-SWE) to diagnose fibrosis is well described in patients with chronic liver disease. However, its role in prognosis, especially after liver transplantation (LT) has not been adequately examined. We hypothesized that elevated liver stiffness measurement (LSM) as measured by 2D-SWE after LT predicts future morbidity and mortality independent of fibrosis by liver biopsy. In a prospective cohort study, consecutive LT recipients underwent concomitant protocol 2D-SWE and protocol liver biopsy (2012-2014), with the assessor blinded to biopsy findings. We examined the baseline correlation of LSM with fibrosis stage and the association between elevated LSM and the development of subsequent clinical outcomes and all-cause mortality. A total of 187 LT recipients (median age 58 years, 38.5% women, median body mass index 26.5 kg/m2 , 55.1% hepatitis C virus, 17.6% nonalcoholic steatohepatitis/cryptogenic) were examined. Median time between LT and biopsy/2D-SWE assessment was 4.0 years, and the median follow-up time after LSM determination was 3.5 years. Median LSM was 9 kPa (8 kPa [F0/F1], 11.5 kPa [F2], 12 kPa [F3/F4]). There was a positive correlation between LSM and fibrosis stage (rs  = 0.41; p < 0.001). LSM ≥11 kPa was associated with lower survival within 3 years (84.8 vs. 93.7%; p = 0.04). After adjusting for age, sex, and fibrosis stage, LSM ≥11 kPa was independently associated with mortality (hazard ratio, 2.45; 95% confidence interval, 1.08-5.60). Elevated LSM by 2D-SWE is associated with increased mortality after LT independent of hepatic fibrosis. Given the overall decrease in the use of liver biopsy in the current era, 2D-SWE may serve as a novel noninvasive prognostic tool to predict relevant outcomes late after LT.


Assuntos
Técnicas de Imagem por Elasticidade , Hepatopatias , Transplante de Fígado , Biópsia , Técnicas de Imagem por Elasticidade/métodos , Feminino , Humanos , Fígado/diagnóstico por imagem , Fígado/patologia , Cirrose Hepática/complicações , Cirrose Hepática/diagnóstico por imagem , Cirrose Hepática/cirurgia , Hepatopatias/patologia , Transplante de Fígado/efeitos adversos , Masculino , Pessoa de Meia-Idade , Morbidade , Estudos Prospectivos
13.
J Med Virol ; 94(4): 1488-1493, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-34821387

RESUMO

Interferons are an essential part of the innate immune system and have antiviral and immunomodulatory functions. We studied the effects of interferon ß-1a on the outcomes of severe cases of coronavirus disease 2019 (COVID-19). This retrospective study was conducted on hospitalized COVID-19 patients in Loghman-Hakim hospital from February 20, 2020 to April 20, 2020, Tehran, Iran. Patients were selected from two groups, the first group received interferon ß-1a in addition to the standard treatment regimen, and the second group received standard care. The clinical progression of two groups during their hospital admission was compared. We studied a total number of 395 hospitalized COVID-19 patients. Out of this number, 111 patients (33.5%) died (31.3% of the interferon ß-1a group and 34.1% of the control group). The mortality rate indicated no statistically significant difference between groups (p-value = 0.348), however for patients who were hospitalized for more than a week, the rate of mortality was lower in the interferon ß-1a group (p-value = 0.014). The median hospital stay was statistically longer for patients treated by interferon ß-1a (p-value < 0.001). The results of this study showed that interferon ß-1a can improve the outcomes of hospitalized patients with severe COVID-19, but more adequately-powered randomized controlled trials should be conducted.


Assuntos
Antivirais/uso terapêutico , Tratamento Farmacológico da COVID-19 , Interferon beta-1a/uso terapêutico , Tempo de Internação/estatística & dados numéricos , Idoso , Idoso de 80 Anos ou mais , COVID-19/mortalidade , Quimioterapia Combinada , Feminino , Humanos , Irã (Geográfico) , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , SARS-CoV-2 , Resultado do Tratamento
14.
Pediatr Transplant ; 25(8): e14100, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-34302419

RESUMO

BACKGROUND: Solid organ transplant recipients are vulnerable to various unusual infections. Visceral Leishmaniasis (VL) is a protozoal opportunistic infection, which may affect the immune-suppressed hosts and solid organ transplant recipients. The BK virus infection is an evolving challenge in kidney transplant recipients. However, there are very few reports of BK virus (BKV) nephropathy involving the native kidney in liver transplant recipients. To the best of our knowledge, this is the first report of the simultaneous occurrence of these rare infections in a liver transplant recipient. CASE REPORT: The patient was a 9-year-old girl, a case of liver transplantation who presented with the incidental finding of proteinuria, azotemia, and cytopenia. Investigations revealed that she had concomitant BKV nephropathy and visceral leishmaniasis. Both infections were successfully treated. CONCLUSION: BK virus should be considered as a cause of nephropathy in liver transplant recipients. The presenting features of fever, cytopenia, and splenomegaly in a post-transplant patient should remind of unusual infections such as VL other than the common post-transplant conditions.


Assuntos
Leishmaniose Visceral/complicações , Leishmaniose Visceral/tratamento farmacológico , Transplante de Fígado , Infecções por Polyomavirus/tratamento farmacológico , Infecções por Polyomavirus/virologia , Infecções Tumorais por Vírus/tratamento farmacológico , Infecções Tumorais por Vírus/virologia , Anfotericina B/administração & dosagem , Anti-Hipertensivos/administração & dosagem , Antiprotozoários/administração & dosagem , Vírus BK , Criança , Quimioterapia Combinada , Feminino , Humanos , Imunossupressores/administração & dosagem , Achados Incidentais , Infecções Oportunistas/tratamento farmacológico , Infecções Oportunistas/virologia , Carga Viral
15.
Aliment Pharmacol Ther ; 53(8): 928-938, 2021 04.
Artigo em Inglês | MEDLINE | ID: mdl-33556192

RESUMO

BACKGROUND: Early identification of risk for decompensation in clinically stable cirrhotic patients helps specialists target early interventions and supports effective referrals from primary care providers to specialty centres. AIMS: To examine whether the HepQuant-SHUNT test (HepQuant LLC, Greenwood Village, Colorado, USA) predicts decompensation and the need for liver transplantation, hospitalisation or liver-related death. METHODS: Thirty-five compensated and 35 subjects with a previous episode of decompensation underwent the SHUNT Test and were followed for a median of 4.2 years. The disease severity index (DSI) (range 0-50) was examined for association with decompensation in compensated patients; and liver transplantation, liver-related death, and the number and days of liver related hospitalisations in all. DSI prediction of decompensation was also evaluated in 84 subjects with compensated cirrhosis from the Hepatitis C Antiviral Long-Term Treatment against Cirrhosis Trial (HALT-C) followed for a median of 5.8 years. RESULTS: At baseline, subjects with prior decompensation had significantly higher DSI than compensated subjects (32.6 vs 20.9, P < 0.001). DSI ≥24 distinguished the decompensated from the compensated patients and independently predicted adverse clinical outcomes (hazard ratio: 4.92, 95% confidence interval: 1.42-17.06). In the HALT-C cohort, 65% with baseline DSI ≥24 vs 19% with DSI <24 experienced adverse clinical outcomes (relative risk 3.45, P < 0.0001). CONCLUSIONS: The SHUNT test is a novel, noninvasive test that predicts risk of decompensation in previously compensated patients. DSI ≥24 is independently associated with risk for clinical decompensation, liver transplantation, death and hospitalisation.


Assuntos
Hepatite C , Falência Hepática , Estudos de Coortes , Humanos , Cirrose Hepática/complicações , Cirrose Hepática/diagnóstico , Modelos de Riscos Proporcionais
16.
Iran J Parasitol ; 16(4): 601-609, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-35082889

RESUMO

BACKGROUND: Toxoplasma gondii, an obligate intracellular protozoan, causes toxoplasmosis. The aim of this study was molecular detection of T. gondii in breast and goat milk samples by the molecular method in the central Iran. METHODS: Totally, 300 human' and 200 goats' milk samples were collected randomly from different regions of central Iran in 2018. DNA extraction was performed by the salting-out method. Molecular detection of the parasite was done by nested-PCR using the specific primer pairs. Statistical analysis was performed by SPSS 23 using descriptive and Chi-square tests. RESULTS: Out of 300 human milk samples, 1 sample (0.3%) was infected with T. gondii. Out of 200 samples of goat milk, 11 samples (5.5%) showed infection with T. gondii. The frequency of infection in goat's milk samples was 4.36% in the south and west, 1.9% in northern regions, and 2% in eastern regions of the province. The statistical analysis showed no significant difference between toxoplasmosis and different geographical regions in the province. CONCLUSION: Because of the popularity of the goat milk and the transfection probability with the milk to humans, it is recommended to boil milk prior to use. Furthermore, case contamination of T. gondii in the human milk sample showed one of the important paths for infection transmission, which requires further studies.

17.
Tanaffos ; 20(2): 156-163, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-34976087

RESUMO

BACKGROUND: Coronavirus disease 2019 (COVID-19) has been pandemic and has caused a great burden on almost all countries across the world. Different perspectives of this novel disease are poorly understood. This study sought to investigate the clinical and epidemiological characteristics of COVID-19 to efficiently assist the health system of Iran to conquer the outbreak. MATERIALS AND METHODS: This retrospective observational study was performed on 394 patients with a diagnosis of COVID-19. The patients should have a history of hospitalization at Loghman-Hakim hospital, Tehran, Iran, for 10 weeks, beginning from the first official report of the disease in Iran. In the subsequent step, the baseline demographic and clinical and paraclinical information of the patients was documented. Finally, the patients were assessed if they had exhibited any morbidity or mortality. RESULTS: The epidemiological examination of the COVID-19 population suggested a bell diagram pattern for the hospitalization rate, in which the 4th week of the study was the peak. The highest rate of secondary adverse events due to the virus was observed at the 6th and 7th weeks of the study course. On another note, clinical evaluations resulted in identifying specific abnormalities, such as bilateral opacity in chest computed tomography scans or low oxygen saturation in laboratory data. CONCLUSION: This study provides evidence concerning the clinical and epidemiological characteristics of COVID-19 in the first phase of the virus outbreak in Iran. Further studies comparing the disease features in the subsequent phases with findings of this study can pave the way for additional information in this regard.

19.
Kidney Med ; 2(6): 753-761.e1, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33319199

RESUMO

RATIONALE & OBJECTIVE: The Kidney Failure Risk Equation (KFRE) is a simple widely validated prediction model using age, sex, estimated glomerular filtration rate, and urinary albumin-creatinine ratio to predict the risk for end-stage kidney disease. Data are limited for its applicability to kidney transplant recipients. STUDY DESIGN: Validation study of the KFRE as a post hoc analysis of the Folic Acid for Vascular Outcomes Reduction in Transplantation (FAVORIT) Trial. SETTING & PARTICIPANTS: Adult kidney transplant recipients with functioning kidney allografts at least 6 months posttransplantation from 30 centers in the United States, Canada, and Brazil. Participants with estimated glomerular filtration rates < 60 mL/min/1.73 m2 at study entry were included. PREDICTOR: 2- and 5-year kidney failure risk predicted by the KFRE using variables at study entry. OUTCOME: Graft loss, defined by initiation of dialysis. ANALYTICAL APPROACH: Discrimination of the KFRE was assessed using C statistics; calibration was assessed by plotting predicted risk against observed cumulative incidence of graft loss. RESULTS: 2,889 participants were included. Within 2 years, 98 participants developed graft loss, 107 participants died with a functioning graft, and 129 participants were lost to follow-up, and by 5 years, 252 had developed graft loss, 265 died with a functioning graft, and 1,543 were lost to follow-up. The KFRE demonstrated accurate calibration and discrimination (C statistic, 0.85 [95% CI, 0.81-0.88] at 2 years and 0.81 [95% CI, 0.78-0.84] at 5 years); performance was similar regardless of donor type (living vs deceased) and graft vintage, with the noted exception of poorer calibration for graft vintage less than 2 years. LIMITATIONS: Unavailable cause of graft loss. CONCLUSIONS: The KFRE accurately predicted the risk for graft loss among adult kidney transplant recipients with graft vintage longer than 2 years and may be a useful prognostic tool for nephrologists caring for kidney transplant recipients.

20.
J Educ Health Promot ; 9: 259, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33225003

RESUMO

INTRODUCTION: In order to improve outpatient education, it is necessary to carry out formative standard evaluation to reveal the strengths and weaknesses to improve planning the quality of clinical education. Due to numerous challenges in clinical education, the present study was conducted to determine the extent to which outpatient education standards were achieved in the major departments of Shiraz Medical School. METHODS: In this quantitative combined, cross-sectional and practical investigation in the academic year 2018-2019, 178 interns who had passed the outpatient education in the four major wards (internal medicine, pediatrics, gynecology, and surgery) in Shiraz Medical School were randomly selected. A 26-item researcher-made questionnaire, based on the Handbook of the Ministry of Clinical Education (Outpatient Education) for Health and Medical Education's Criteria and indicators, was used in three areas of preparation, timing and implementation; and the psychometric properties of the questionnaire were determined. For quantitative data analysis, SPSS version 22 was used. Furthermore, we performed a qualitative study through semi-structured interviews with 16 interns and analyzed the data using MAXQDA 10 software. RESULTS: The results of the quantitative study showed that 8.4% of interns evaluated the program as poor, 66.3% moderate, and 25.3% good. The qualitative study showed that number and diversity of patients, instructor's educational model, and number of interns had a significant role. CONCLUSION: Although the outpatient teaching in the four major departments of Shiraz Medical School was evaluated relatively acceptable, it is far from the ideal point and need to be improved.

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