95 research outputs found
Palliative Care via Telemedicine: A Qualitative Study of Caregiver and Provider Perceptions
Background: Telemedicine has been proposed as a means to improve access to palliative care. There is limited information about how health care workers feel about providing this kind of care and how families feel about receiving it. Objective: This study assesses provider and caregiver perceptions of the safety and efficacy of the Distance Support Program (DSP) of a home-based palliative care provider in Beirut, Lebanon. Design: Interviews were conducted with 8 physicians and nurses who provided that care through the DSP as well as 49 caregivers of patients who received care between January 2015 and December 2017. Interviews were analyzed thematically. Results: Although they would have preferred having access to home visits, caregivers reported that they valued the information, guidance, and emotional support they received through the DSP and they appreciated having telephone access to providers. Health providers reported the DSP was more efficient than home visits. They felt it was safest when delivered by an experienced provider, they had access to a reliable caregiver, and the patient was assessed at least once. They felt it was important to communicate clear expectations to patients and caregivers when delivering care by telephone. Conclusions: Telemedicine can be a useful tool to provide palliative care services in settings where they would otherwise not be available. Copyright © 2020 Mary Ann Liebert, Inc
The utility of chest X-ray vs. computed tomography in febrile neutropenia patients presenting to the emergency department
Introduction: Pulmonary infections are not uncommon in patients with febrile neutropenia. Physicians have agreed to perform a chest X-ray (CXR) for all febrile neutropenic patients presenting with respiratory signs/symptoms. Nevertheless, they were divided into two groups when it came to asymptomatic febrile neutropenic patients (i.e. without respiratory signs/symptoms). A superior alternative to CXR is Computed Tomography (CT). CT, in comparison to CXR, was shown to have better sensitivity in detecting pulmonary foci. The aim of our study is to compare the diagnostic performance of CT and CXR in febrile neutropenic patients presenting to the emergency department, regardless of their clinical presentation. We are also interested in the predictors of pneumonia on chest imaging. Methodology: This is a retrospective cohort study conducted on febrile neutropenic adult cancer patients presenting to the emergency department of the American University of Beirut Medical Center. Results: 11.4% of 263 patients had pneumonia although 27.7% had respiratory signs/symptoms. 17.1% of those who were symptomatic and did a CXR were found to have pneumonia. 41.7% of those who were symptomatic and did a CT were found to have pneumonia. 30% had negative findings on CXR but pneumonia on CT. Conclusion: Patients with positive findings of pneumonia on chest imaging mainly had solid tumors, profound neutropenia, a higher CCI and a longer LOS. The presence of respiratory signs is the main predictor of positive pneumonia on chest imaging. CT is superior to CXR in detecting pulmonary foci in the population studied. Copyright © 2020 El Majzoub et al. This is an open-access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
Acute kidney injury secondary to obstructive bladder malakoplakia: a case report
Background: Malakoplakia is a rare granulomatous inflammatory condition that can affect immunosuppressed patients. The genitourinary system is the most involved organ. We present a case of kidney failure caused by obstructing bladder lesions, clinically suspicious for malignancy and pathologically proven to be malakoplakia. Case presentation: A 70-year-old woman presented with acute kidney injury and Escherichia coli (E.coli) bacteremia. Investigation showed bilateral hydronephrosis with thickening of the renal pelvises suggestive of urothelial malignancy. Cystourethroscopy revealed multiple bladder lesions completely obliterating both ureteral orifices. Pathology of the resected lesions confirmed the diagnosis of malakoplakia. Patient was treated with a prolonged antibiotic course over 6 months with recovery of her kidney function. Conclusion: Malakoplakia can mimic invasive tumors, and the diagnosis is only attained through histopathology which uniquely demonstrates the pathognomonic Michaelis–Gutmann inclusions inside sheets of histiocytes. Treatment is largely dependent on prolonged antibiotics therapy that must cover the most common isolated pathogen, E.coli. © 2023, The Author(s)
Role of urine studies in asymptomatic febrile neutropenic patients presenting to the emergency department
BACKGROUND: The role of urine studies in the detection of urinary tract infection (UTI) in febrile neutropenic patients with urinary symptoms (having a urinary catheter or having a positive urine analysis) is inarguable. However, the evidence is scarce regarding the indication for urine studies in asymptomatic (i.e., without urinary symptoms) patients with febrile neutropenia (FN) presenting to the emergency department (ED). The aim of this study is to evaluate the need for obtaining urine studies in asymptomatic febrile neutropenic patients. METHODS: This was a retrospective cohort study conducted on adult cancer patients who presented to the ED with FN and had no urinary symptoms. We included all ED presentations of eligible patients between January 2013 and September 2018. Student's t-test and Wilcoxon rank-sum test were used for continuous data, while Chi-square and Fisher's exact tests were used for categorical data. Participants were divided into two groups based on their urine culture (UC) results: Negative and positive UCs. Two cut-off s were used for positive UC results: ≥105 cfu/mL and ≥104 cfu/mL. RESULTS: We included 284 patients in our study. The age of our patient population was 48.5±18.5 years. More than two-thirds (68.7%) of patients had severe neutropenia, while only 3.9% and 9.9% of the patients had positive UCs at ≥105 cfu/mL and ≥104 cfu/mL, respectively. UCs were expectedly positive in most patients with urinalysis (UA) abnormalities. However, 27.3% and 32.1% of patients with positive UCs at ≥105 cfu/mL and ≥104 cfu/mL respectively had a normal UA. CONCLUSIONS: In our study, the incidence of UTI in adult febrile neutropenic cancer patients who present to the ED without urinary symptoms is low. Consequently, routine urine testing may not be warranted in this population, as it adds unnecessary fi nancial burdens on the patients and delays timely management. © 2021 World Journal of Emergency Medicine
Predominance of candida glabrata among non-albicans candida species in a 16-year study of candidemia at a tertiary care center in Lebanon
Background: Candidemia is associated with a high mortality rate, and its incidence is increasing worldwide with a rise in non-albicans candidemia (NAC). Epidemiologic data from Arab countries are scarce and there are no data from Lebanon; Methods: This is a single-center retrospective chart review of patients with candidemia in a tertiary care center in Lebanon from 2004 to 2019. We extracted data on patient characteristics, isolated Candida species antifungal susceptibility, management and outcomes; Results: We included 170 cases of candidemia. NAC was more common than albicans candidemia (64.7% vs. 35.3%). C. glabrata was the most common non-albicans species (37 isolates) followed by C. tropicalis (14). Recent use of antifungals was a risk factor for NAC (OR = 2.8, p = 0.01), while the presence of a central venous catheter was protective (OR = 0.41, p = 0.02). Fluconazole resistance was 12.5% in C. albicans and 21.5% in non-albicans spp. Mortality at 30 days was 55.5%, with no difference between NAC and albicans candidemia. It was higher in older and critically ill patients but lower in patients whose central venous catheter was removed after detecting fungemia; Conclusions: Candidemia is associated with high mortality in Lebanon, with a predominance of NAC and high prevalence of C. glabrata. © 2021 by the authors. Licensee MDPI, Basel, Switzerland
Baseline chest computed tomography as standard of care in high-risk hematology patients
Baseline chest computed tomography (BCT) in high-risk hematology patients allows for the early diagnosis of invasive pulmonary aspergillosis (IPA). The distribution of BCT implementation in hematology departments and impact on outcome is unknown. A web-based questionnaire was designed. International scientific bodies were invited. The estimated numbers of annually treated hematology patients, chest imaging timepoints and techniques, IPA rates, and follow-up imaging were assessed. In total, 142 physicians from 43 countries participated. The specialties included infectious diseases (n = 69; 49%), hematology (n = 68; 48%), and others (n = 41; 29%). BCT was performed in 57% (n = 54) of 92 hospitals. Upon the diagnosis of malignancy or admission, 48% and 24% performed BCT, respectively, and X-ray was performed in 48% and 69%, respectively. BCT was more often used in hematopoietic cell transplantation and in relapsed acute leukemia. European centers performed BCT in 59% and non-European centers in 53%. Median estimated IPA rate was 8% and did not differ between BCT (9%; IQR 5-15%) and non-BCT centers (7%; IQR 5-10%) (p = 0.69). Follow-up computed tomography (CT) for IPA was performed in 98% (n = 90) of centers. In high-risk hematology patients, baseline CT is becoming a standard-of-care. Chest X-ray, while inferior, is still widely used. Randomized, controlled trials are needed to investigate the impact of BCT on patient outcome
Baseline Chest Computed Tomography as Standard of Care in High-Risk Hematology Patients
Baseline chest computed tomography (BCT) in high-risk hematology patients allows for the early diagnosis of invasive pulmonary aspergillosis (IPA). The distribution of BCT implementation in hematology departments and impact on outcome is unknown. A web-based questionnaire was designed. International scientific bodies were invited. The estimated numbers of annually treated hematology patients, chest imaging timepoints and techniques, IPA rates, and follow-up imaging were assessed. In total, 142 physicians from 43 countries participated. The specialties included infectious diseases (n = 69; 49%), hematology (n = 68; 48%), and others (n = 41; 29%). BCT was performed in 57% (n = 54) of 92 hospitals. Upon the diagnosis of malignancy or admission, 48% and 24% performed BCT, respectively, and X-ray was performed in 48% and 69%, respectively. BCT was more often used in hematopoietic cell transplantation and in relapsed acute leukemia. European centers performed BCT in 59% and non-European centers in 53%. Median estimated IPA rate was 8% and did not differ between BCT (9%; IQR 5-15%) and non-BCT centers (7%; IQR 5-10%) (p = 0.69). Follow-up computed tomography (CT) for IPA was performed in 98% (n = 90) of centers. In high-risk hematology patients, baseline CT is becoming a standard-of-care. Chest X-ray, while inferior, is still widely used. Randomized, controlled trials are needed to investigate the impact of BCT on patient outcome
Lipoic acid plays a role in scleroderma: insights obtained from scleroderma dermal fibroblasts
Abstract
Introduction
Systemic sclerosis (SSc) is a connective tissue disease characterized by fibrosis of the skin and organs. Increase in oxidative stress and platelet-derived growth factor receptor (PDGFR) activation promote type I collagen (Col I) production, leading to fibrosis in SSc. Lipoic acid (LA) and its active metabolite dihydrolipoic acid (DHLA) are naturally occurring thiols that act as cofactors and antioxidants and are produced by lipoic acid synthetase (LIAS). Our goals in this study were to examine whether LA and LIAS were deficient in SSc patients and to determine the effect of DHLA on the phenotype of SSc dermal fibroblasts. N-acetylcysteine (NAC), a commonly used thiol antioxidant, was included as a comparison.
Methods
Dermal fibroblasts were isolated from healthy subjects and patients with diffuse cutaneous SSc. Matrix metalloproteinase (MMPs), tissue inhibitors of MMPs (TIMP), plasminogen activator inhibitor 1 (PAI-1) and LIAS were measured by enzyme-linked immunosorbent assay. The expression of Col I was measured by immunofluorescence, hydroxyproline assay and quantitative PCR. PDGFR phosphorylation and α-smooth muscle actin (αSMA) were measured by Western blotting. Student’s t-tests were performed for statistical analysis, and P-values less than 0.05 with two-tailed analysis were considered statistically significant.
Results
The expression of LA and LIAS in SSc dermal fibroblasts was lower than normal fibroblasts; however, LIAS was significantly higher in SSc plasma and appeared to be released from monocytes. DHLA lowered cellular oxidative stress and decreased PDGFR phosphorylation, Col I, PAI-1 and αSMA expression in SSc dermal fibroblasts. It also restored the activities of phosphatases that inactivated the PDGFR. SSc fibroblasts produced lower levels of MMP-1 and MMP-3, and DHLA increased them. In contrast, TIMP-1 levels were higher in SSc, but DHLA had a minimal effect. Both DHLA and NAC increased MMP-1 activity when SSc cells were stimulated with PDGF. In general, DHLA showed better efficacy than NAC in most cases.
Conclusions
DHLA acts not only as an antioxidant but also as an antifibrotic because it has the ability to reverse the profibrotic phenotype of SSc dermal fibroblasts. Our study suggests that thiol antioxidants, including NAC, LA, or DHLA, could be beneficial for patients with SSc.http://deepblue.lib.umich.edu/bitstream/2027.42/112060/1/13075_2014_Article_411.pd
Baseline Chest Computed Tomography as Standard of Care in High-Risk Hematology Patients
Baseline chest computed tomography (BCT) in high-risk hematology patients allows for the early diagnosis of invasive pulmonary aspergillosis (IPA). The distribution of BCT implementation in hematology departments and impact on outcome is unknown. A web-based questionnaire was designed. International scientific bodies were invited. The estimated numbers of annually treated hematology patients, chest imaging timepoints and techniques, IPA rates, and follow-up imaging were assessed. In total, 142 physicians from 43 countries participated. The specialties included infectious diseases (n = 69; 49%), hematology (n = 68; 48%), and others (n = 41; 29%). BCT was performed in 57% (n = 54) of 92 hospitals. Upon the diagnosis of malignancy or admission, 48% and 24% performed BCT, respectively, and X-ray was performed in 48% and 69%, respectively. BCT was more often used in hematopoietic cell transplantation and in relapsed acute leukemia. European centers performed BCT in 59% and non-European centers in 53%. Median estimated IPA rate was 8% and did not differ between BCT (9%; IQR 5-15%) and non-BCT centers (7%; IQR 5-10%) (p = 0.69). Follow-up computed tomography (CT) for IPA was performed in 98% (n = 90) of centers. In high-risk hematology patients, baseline CT is becoming a standard-of-care. Chest X-ray, while inferior, is still widely used. Randomized, controlled trials are needed to investigate the impact of BCT on patient outcome
Lipoic acid plays a role in scleroderma: insights obtained from scleroderma dermal fibroblasts
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