ABSTRACT
Ectopic variceal bleeding is a potentially under recognized source of gastrointestinal (GI) hemorrhage. While vascular complications following pancreatic transplant are relatively common, the development of symptomatic ectopic venous varices has rarely been reported. We report two patients with a remote history of simultaneous kidney pancreas transplant (SPK) presenting two decades after transplant with an occult GI bleed. In both cases, a lengthy diagnostic course was required. The varices were treated with coil embolization via transhepatic approach. Our findings add to the limited literature on this topic and aid in the recognition, diagnosis, and management of this unusual presentation.
Subject(s)
Embolization, Therapeutic , Esophageal and Gastric Varices , Pancreas Transplantation , Varicose Veins , Humans , Esophageal and Gastric Varices/diagnosis , Esophageal and Gastric Varices/etiology , Esophageal and Gastric Varices/therapy , Gastrointestinal Hemorrhage/diagnosis , Gastrointestinal Hemorrhage/etiology , Gastrointestinal Hemorrhage/therapy , Varicose Veins/complications , Varicose Veins/therapy , Pancreas Transplantation/adverse effectsABSTRACT
BACKGROUND: Organ transplantation from donors with human immunodeficiency virus (HIV) to recipients with HIV (HIV D+/R+) presents risks of donor-derived infections. Understanding clinical, immunologic, and virologic characteristics of HIV-positive donors is critical for safety. METHODS: We performed a prospective study of donors with HIV-positive and HIV false-positive (FP) test results within the HIV Organ Policy Equity (HOPE) Act in Action studies of HIV D+/R+ transplantation (ClinicalTrials.gov NCT02602262, NCT03500315, and NCT03734393). We compared clinical characteristics in HIV-positive versus FP donors. We measured CD4 T cells, HIV viral load (VL), drug resistance mutations (DRMs), coreceptor tropism, and serum antiretroviral therapy (ART) detection, using mass spectrometry in HIV-positive donors. RESULTS: Between March 2016 and March 2020, 92 donors (58 HIV positive, 34 FP), representing 98.9% of all US HOPE donors during this period, donated 177 organs (131 kidneys and 46 livers). Each year the number of donors increased. The prevalence of hepatitis B (16% vs 0%), syphilis (16% vs 0%), and cytomegalovirus (CMV; 91% vs 58%) was higher in HIV-positive versus FP donors; the prevalences of hepatitis C viremia were similar (2% vs 6%). Most HIV-positive donors (71%) had a known HIV diagnosis, of whom 90% were prescribed ART and 68% had a VL <400 copies/mL. The median CD4 T-cell count (interquartile range) was 194/µL (77-331/µL), and the median CD4 T-cell percentage was 27.0% (16.8%-36.1%). Major HIV DRMs were detected in 42%, including nonnucleoside reverse-transcriptase inhibitors (33%), integrase strand transfer inhibitors (4%), and multiclass (13%). Serum ART was detected in 46% and matched ART by history. CONCLUSION: The use of HIV-positive donor organs is increasing. HIV DRMs are common, yet resistance that would compromise integrase strand transfer inhibitor-based regimens is rare, which is reassuring regarding safety.
Subject(s)
HIV Infections , HIV Seropositivity , Anti-Retroviral Agents/therapeutic use , HIV , HIV Infections/drug therapy , HIV Infections/epidemiology , HIV Seropositivity/drug therapy , Humans , Integrases , Prospective Studies , Tissue Donors , United States/epidemiology , Viral LoadABSTRACT
BACKGROUND: Calcineurin inhibitors (CNIs) are standard of care after kidney transplantation, but they are associated with nephrotoxicity and reduced long-term graft survival. Belatacept, a selective T cell costimulation blocker, is approved for the prophylaxis of kidney transplant rejection. This phase 3 trial evaluated the efficacy and safety of conversion from CNI-based to belatacept-based maintenance immunosuppression in kidney transplant recipients. METHODS: Stable adult kidney transplant recipients 6-60 months post-transplantation under CNI-based immunosuppression were randomized (1:1) to switch to belatacept or continue treatment with their established CNI. The primary end point was the percentage of patients surviving with a functioning graft at 24 months. RESULTS: Overall, 446 renal transplant recipients were randomized to belatacept conversion ( n =223) or CNI continuation ( n =223). The 24-month rates of survival with graft function were 98% and 97% in the belatacept and CNI groups, respectively (adjusted difference, 0.8; 95.1% CI, -2.1 to 3.7). In the belatacept conversion versus CNI continuation groups, 8% versus 4% of patients experienced biopsy-proven acute rejection (BPAR), respectively, and 1% versus 7% developed de novo donor-specific antibodies (dnDSAs), respectively. The 24-month eGFR was higher with belatacept (55.5 versus 48.5 ml/min per 1.73 m 2 with CNI). Both groups had similar rates of serious adverse events, infections, and discontinuations, with no unexpected adverse events. One patient in the belatacept group had post-transplant lymphoproliferative disorder. CONCLUSIONS: Switching stable renal transplant recipients from CNI-based to belatacept-based immunosuppression was associated with a similar rate of death or graft loss, improved renal function, and a numerically higher BPAR rate but a lower incidence of dnDSA.Clinical Trial registry name and registration number: A Study in Maintenance Kidney Transplant Recipients Following Conversion to Nulojix® (Belatacept)-Based, NCT01820572.
Subject(s)
Calcineurin Inhibitors , Kidney Transplantation , Adult , Humans , Abatacept/therapeutic use , Calcineurin Inhibitors/adverse effects , Kidney Transplantation/adverse effects , Immunosuppressive Agents/adverse effects , Kidney/physiology , Immunosuppression Therapy , Graft Rejection , Transplant Recipients , Graft SurvivalABSTRACT
HIV-positive donor to HIV-positive recipient (HIV D+/R+) transplantation is permitted in the United States under the HIV Organ Policy Equity Act. To explore safety and the risk attributable to an HIV+ donor, we performed a prospective multicenter pilot study comparing HIV D+/R+ vs HIV-negative donor to HIV+ recipient (HIV D-/R+) kidney transplantation (KT). From 3/2016 to 7/2019 at 14 centers, there were 75 HIV+ KTs: 25 D+ and 50 D- (22 recipients from D- with false positive HIV tests). Median follow-up was 1.7 years. There were no deaths nor differences in 1-year graft survival (91% D+ vs 92% D-, P = .9), 1-year mean estimated glomerular filtration rate (63 mL/min D+ vs 57 mL/min D-, P = .31), HIV breakthrough (4% D+ vs 6% D-, P > .99), infectious hospitalizations (28% vs 26%, P = .85), or opportunistic infections (16% vs 12%, P = .72). One-year rejection was higher for D+ recipients (50% vs 29%, HR: 1.83, 95% CI 0.84-3.95, P = .13) but did not reach statistical significance; rejection was lower with lymphocyte-depleting induction (21% vs 44%, HR: 0.33, 95% CI 0.21-0.87, P = .03). In this multicenter pilot study directly comparing HIV D+/R+ with HIV D-/R+ KT, overall transplant and HIV outcomes were excellent; a trend toward higher rejection with D+ raises concerns that merit further investigation.
Subject(s)
HIV Infections , Kidney Transplantation , Follow-Up Studies , Graft Rejection/etiology , Graft Survival , HIV Infections/complications , Humans , Pilot Projects , Prospective Studies , Risk Factors , Tissue DonorsABSTRACT
The origin, transport pathway, and spatial variability of total organic carbon (OC) in the western Himalayan glaciers are poorly understood compared to those of black carbon (BC) and dust, but it is critically important to evaluate the climatic role of OC in the region. By applying the distribution of OC activation energy; 14C activity; and radiogenic isotopes of 208Pb/204Pb, 207Pb/204Pb, and 206Pb/204Pb in glacial debris and atmospheric particulate matter (PM10 size fraction), we demonstrate that 98.3 ± 1.6 and 1.7 ± 1.6% of OC in western Himalayan glaciers are derived from biomass and petrogenic sources, respectively. The δ13C and N/C composition indicates that the biomass is a complex mixture of C3 vegetation and autochthonous photoautotrophic input modified by heterotrophic microbial activity. The data set reveals that the studied western Himalayan glacier has negligible contributions from fossil-fuel-derived particles, which contrasts to the central and eastern Himalayan glaciers that have significant contributions from fossil fuel sources. We show that this spatial variability of OC sources relates to regional differences in air mass transport pathways and precipitation regimes over the Himalaya. Moreover, our observation suggests that biomass-derived carbon could be the only primary driver of carbon-induced glacier melting in the western Himalaya.
Subject(s)
Air Pollutants , Carbon , Aerosols/analysis , Air Pollutants/analysis , Biomass , Carbon/analysis , Environmental Monitoring , Particulate Matter/analysis , SeasonsABSTRACT
AIMS AND OBJECTIVES: To prospectively evaluate the impact of cardiopulmonary ultrasound (CPUS) on etiological diagnosis and treatment of critically ill acute respiratory failure (ARF) patients. DESIGN: This is a prospective observational study conducted in a general intensive care unit (ICU) of a tertiary care center in India. Patients over 18 years old with presence of one of the objective criteria of ARF. Patients either consecutively admitted for ARF to ICU or already admitted to ICU for a different reason but later developed ARF during their hospital stay. Written informed consent in local language was obtained from next of kin. INTERVENTIONS: All included patients underwent bedside CPUS including lung ultrasound (US) and transthoracic echocardiography plus targeted venous US by single investigator, blinded to clinical data. The US diagnosis of ARF etiology was shared with treating intensivist. Initial clinical diagnosis (ICD) and treatment plan (made before US) of each patient were compared with post-US clinical diagnosis and treatment plan. The changes in diagnosis and treatment up to 24 hours post-US were considered as impact of US. RESULTS: Mean age of 108 included patients was 45.7 ± 20.4 years (standard deviation). The ICD was correct in 67.5% (73/108) cases, whereas the combined CPUS yielded correct etiological diagnosis in 88% (95/108) cases. Among the 108 included patients, etiological diagnosis of ARF was altered after CPUS in 40 (37%) patients, which included "diagnosis changed" in 18 (17%) and "diagnosis added" in 22 (20%). Treatment plan was changed in 39 (36%) patients after CPUS, which included surgical interventions in 17 (16%), changes in medical therapy in 12 (11%), and changes in ventilation strategy in 4 (3.5%) patients. CONCLUSION: This study demonstrates that use of combined US approach as an initial test in ARF, improves diagnostic accuracy for identification of underlying etiology, and frequently changes clinical diagnosis and/or treatment. HOW TO CITE THIS ARTICLE: Barman B, Parihar A, Kohli N, Agarwal A, Dwivedi DK, Kumari G. Impact of Bedside Combined Cardiopulmonary Ultrasound on Etiological Diagnosis and Treatment of Acute Respiratory Failure in Critically Ill Patients. Indian J Crit Care Med 2020;24(11):1062-1070.
ABSTRACT
The appropriate duration of surgical antibiotic prophylaxis in orthotopic liver transplantation (OLT) in the presence of significant iatrogenic immunosuppression is unclear. We hypothesized that 72 hours of perioperative antibiotic prophylaxis would decrease rates of surgical site infection (SSI) in OLT patients when compared with intraoperative antibiotic prophylaxis alone. OLT recipients were randomized to receive either intraoperative antibiotics only (short antibiotics [SAs]) or 72 hours of perioperative antibiotics (extended antibiotics [EAs]). A total of 102 patients were randomized: 51 to the EA group and 51 to the SA group. Rates of SSI and nosocomial infection (NI) in the SA group were 19% and 17%, respectively, compared with 27% (SSI; P = 0.36) and 22% (NI; P = 0.47) in the EA group, although these differences were not statistically significant. Intensive care unit (ICU) length of stay (LOS), hospital LOS, 30-day mortality, and time to infection were also similar between the 2 groups. Patients developing infections had longer ICU LOS and hospital LOS and a higher association with reoperation, endoscopic retrograde cholangiopancreatography, and 30-day readmission. In conclusion, extending perioperative antibiotics to 72 hours from intraoperative dosing alone in OLT patients does not appear to decrease the incidence of SSI or NI. The results from this pilot trial with 60% power suggest that it is acceptable for OLT recipients to receive intraoperative antibiotic prophylaxis alone.
Subject(s)
Anti-Bacterial Agents/therapeutic use , Antibiotic Prophylaxis/methods , Cross Infection/epidemiology , Liver Transplantation/adverse effects , Surgical Wound Infection/epidemiology , Cross Infection/etiology , Cross Infection/prevention & control , Drug Administration Schedule , Female , Humans , Incidence , Intensive Care Units/statistics & numerical data , Length of Stay/statistics & numerical data , Liver Transplantation/statistics & numerical data , Male , Middle Aged , Patient Readmission/statistics & numerical data , Perioperative Care/methods , Pilot Projects , Reoperation/statistics & numerical data , Surgical Wound Infection/etiology , Surgical Wound Infection/prevention & control , Time Factors , Treatment OutcomeABSTRACT
Biodiesel engines produce several intermediate species, which can potentially harm the human health. The concentration of these species and their health risk potential varies depending on engine technology, fuel, and engine operating condition. In this study, experiments were performed on a large number of engines having different configurations (emissions norms/fuel used), which were operated at part load/full load using B20 (20% v/v biodiesel blended with mineral diesel) and mineral diesel. Experiments included measurement of gaseous emissions, and physical, chemical, and biological characterization of exhaust particulate matter (PM). Chemical characterization of PM was carried out for detecting polycyclic aromatic hydrocarbons (PAH's) and PM bound trace metals. The biological toxicity associated with PM was assessed using human embryonic kidney 293T cells (HEK 293T). The mutagenic potential of the PM was tested at three different concentrations (500, 100, and 50 µg/mL) using two different Salmonella strains, TA98 and TA100, with and without liver S9 metabolic enzyme fraction. PM samples exhibited cytotoxic effect on HEK 293T cells (IC50 < 100 µg/mL) and there was significant potential for reactive oxygen species (ROS) generation. Comparison of different engines showed that modern engines (Euro-III and Euro-IV compliant) produced relatively cleaner exhaust compared to older engines (Euro-II compliant). Biodiesel-fueled engines emitted lower number of particles compared to diesel-fueled engines. However, chemical characterization revealed that biodiesel-fueled engines exhaust PM contained several harmful PAHs and trace metals, which affected the biological activity of these PM, as reflected in the biological investigations. Mutagenicity and cytotoxicity of PM from biodiesel-fueled engines were relatively higher compared to their diesel counterparts, indicating the need for exhaust gas after-treatment.
Subject(s)
Air Pollutants , Particulate Matter , Biofuels , Gasoline , Humans , Mutagens , Vehicle EmissionsABSTRACT
INTRODUCTION: Metabolic Syndrome (MetS) is defined as a constellation of an interconnected physiological, biochemical, clinical, and metabolic factors that directly increases the risk of atherosclerotic cardiovascular disease and T2DM. Although the link between impaired lung function and cardiovascular events and T2DM has been recognized, the association between impaired lung function and MetS has not been comprehensively assessed. MATERIAL AND METHODS: A cross sectional prevalence study was done in tertiary care hospital in northern India on 100 patients of the age between 25-65 years who fulfilled the IDF criteria for MetS to evaluate pulmonary function test (Spirometry) abnormalities. RESULTS: Maximum number of patients were in 31-40 years of age group (45%) followed by those aged 41-50 year (26%), < 30 years (15%), >50 years (14%). Mean age of patients was 39.59±8.67 year. In this cross-sectional study, patients with Metabolic Syndrome showed significantly lower FVC % predicted (P< 0.001), FEV1 % predicted (P< 0.001) as compared to the group without Metabolic Syndrome. There was a strong linear decrease in FVC and FEV1 % predicted as the number of components of MetS increases. We observed that 28% of the male and 46.6% of female patients showed restrictive ventilatory pattern and 7% of male and 13.4% of female patients showed mixed pattern. CONCLUSION: All MetS components were associated with pulmonary function impairment. As the number of MetS components increases, patients had more severe decline in pulmonary functions.
Subject(s)
Metabolic Syndrome , Respiratory Function Tests , Adult , Aged , Cross-Sectional Studies , Female , Humans , India , Male , Middle Aged , Prevalence , Risk FactorsABSTRACT
BACKGROUND: Cardiovascular diseases (CVD's) are the major cause of morbidity and mortality in both developed and developing countries. Many clinical trials have demonstrated that low-density lipoprotein cholesterol (LDL-C) lowering, reduces the incidence of coronary and cerebrovascular events across a broad spectrum of patients at risk. Guidelines for the management of patients at risk have been established in Europe and North America. The guidelines have advocated progressively lower LDL-C targets and more aggressive use of statin therapy. In Indian patients, comprehensive data on dyslipidemia management and its treatment outcomes are inadequate. There is lack of information on existing treatment patterns, the patient's profile being treated, and factors that determine treatment success or failure in achieving desired goals. PURPOSE: The present study was planned to determine the lipid control status in high-risk dyslipidemic patients treated with lipid-lowering therapy in India. METHODS: This cross-sectional, non-interventional, single visit program was conducted across 483 sites in India where male and female patients with high-risk dyslipidemia aged 18 to 65 years who had visited for a routine health check-up to their respective physician at hospital or a healthcare center. Percentage of high-risk dyslipidemic patients achieving adequate LDL-C level (< 70 mg/dL) on lipid-lowering therapy and the association of lipid parameters with patient characteristics, comorbid conditions, and lipid lowering drugs were analysed. RESULTS: 3089 patients were enrolled in the study; of which 64% were males. LDL-C data was available for 95.2% of the patients; only 7.7% of these patients achieved LDL-C levels < 70 mg/dL on lipid-lowering therapy, which may be due to inability to follow therapeutic plans, poor compliance, or inadequate counselling by physician. The physician's lack of awareness about recent treatment guidelines also might contribute to patients' poor adherence, not explaining adequately the benefit and risks of a medication, not giving consideration to the patient's life style and the cost of medication. Statin was the most commonly used anti-dyslipidemic drug across population. The higher proportion of patients had the comorbid condition of CVD and diabetes mellitus across all dyslipidemic patients. CONCLUSIONS: As per the European Society of Cardiology guidelines the ideal LDL-C levels in high risk dyslipidemic patients should be less than 70 mg/dL. In the present study, 7.7% of the patients achieved LDL-C levels < 70 mg/dL on lipid lowering therapy which is very less. Most of high risk dyslipidemic patients in India are on suboptimal dosage of statin. So more aggressive and high dosage statin therapy may be required to achieve target LDLC levels in high risk Indian dyslipidemic patients.
Subject(s)
Cholesterol, LDL/blood , Dyslipidemias/drug therapy , Hydroxymethylglutaryl-CoA Reductase Inhibitors/therapeutic use , Adolescent , Adult , Aged , Cross-Sectional Studies , Demography , Europe , Female , Humans , India , Lipids , Male , Middle Aged , Risk Factors , Treatment Outcome , Young AdultABSTRACT
INTRODUCTION: The primary objective of this study was to determine the serum level of antioxidant enzymes and to correlate them with outcome in patients of aluminum phosphide (ALP) poisoning and, secondly, to evaluate the effect of N-acetylcysteine (NAC) given along with supportive treatment of ALP poisoning. DESIGN: We conducted a cohort study in patients of ALP poisoning hospitalized at a tertiary care center of North India. The treatment group and control group were enrolled during the study period of 1 year from May 2011 to April 2012. INTERVENTIONS: Oxidative stress was evaluated in each subject by estimating the serum levels of the enzymes, viz. catalase, superoxide dismutase (SOD) and glutathione reductase (GR). The treatment group comprised of patients who were given NAC in addition to supportive treatment (magnesium sulfate and vasopressors, if required), while in the control group, only supportive treatment was instituted. The primary endpoint of the study was the survival of the patients. MEASUREMENTS AND RESULTS: The baseline catalase (P = 0.008) and SOD (P < 0.01) levels were higher among survivors than non-survivors. Of the total patients in the study, 31 (67.4%) expired and 15 (32.6%) survived. Among those who expired, the mean duration of survival was 2.92 ± 0.40 days in the test group and 1.82 ± 0.33 days in the control group (P = 0.043). CONCLUSIONS: This study suggests that the baseline level of catalase and SOD have reduced in ALP poisoning, but baseline GR level has not suppressed but is rather increasing with due time, and more so in the treatment group. NAC along with supportive treatment may have improved survival in ALP poisoning.
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Toxicity of engine out emissions from primary and secondary aerosols has been a major cause of concern for human health and environmental impact. This study aims to evaluate comparative toxicity of nanoparticles emitted from a modern common rail direct injection engine (CRDI) fuelled with biodiesel blend (B20) vis-à-vis mineral diesel. The toxicity and potential health hazards of exhaust particles were assessed using various parameters such as nanoparticle size and number distribution, surface area distribution, elemental and organic carbon content and polycyclic aromatic hydrocarbons adsorbed onto the particle surfaces, followed by toxic equivalent factor assessment. It was found that biodiesel particulate toxicity was considerably lower in comparison to mineral diesel.
Subject(s)
Air Pollutants/toxicity , Biofuels , Gasoline , Nanoparticles/toxicity , Particulate Matter/toxicity , Vehicle Emissions/toxicity , Aerosols , Air Pollutants/chemistry , Carbon/analysis , Carbon/toxicity , Nanoparticles/chemistry , Particulate Matter/chemistry , Polycyclic Aromatic Hydrocarbons/analysis , Polycyclic Aromatic Hydrocarbons/toxicity , Vehicle Emissions/analysisABSTRACT
BACKGROUND: Organophosphorous (OP) poisoning is one of the most common poisonings seen in India. OP compounds act through inhibition of enzyme acetylcholinesterase and estimation of pseudocholinesterase (PCE) activity strengthens the diagnosis in clinically uncertain cases of OP poisoning. The role of pralidoxime (PAM) therapy in OP poisoning has been controversial. STUDY OBJECTIVES: This study was aimed to determine the prognostic significance of estimation of PCE activity and also to assess the role of PAM therapy in OP poisoning. MATERIALS AND METHODS: Patients of suspected OP poisoning of age >12 years admitted to emergency unit at a tertiary healthcare center of north India were enrolled. Patients were categorized into two groups; group A who were given intravenous atropine and group B who were given injectable PAM along with atropine. Serum PCE level was estimated at the time of admission in all patients and severity of OP poisoning was assessed according to PCE level. Requirement of atropine, oxygen inhalation, intubation and ventilatory support, total hospital stay, and mortality were compared between different classes of severity and also between Groups A and B. RESULTS: This study included a total of 70 subjects, 35 in each group with mean age of 24.99 ± 8.7 years. Out of 70 subjects 49 (70%) were male and 21 (30%) were female. Forty nine patients (70%) of OP poisoning were with suicidal intent while 21 (30%) cases were accidentally poisoned. In all suicidal cases route of poisoning was ingestion whereas in all the accidental cases route of exposure was inhalational. PCE levels were reduced in all the cases and the mean level was 3,154.16 ± 2,562.40 IU/L. The total dose of atropine required, need for oxygen inhalation and need for intubation and ventilatory support, mean duration of hospital stay and mortality rate (P = 0.003) were higher in moderate to severe cases and did not have significant difference between Groups A and B. CONCLUSION: The study recommends estimation of PCE level at admission to classify severity of OP poisoning and to estimate prognosis. This study did not find any beneficial role of PAM therapy in reducing morbidity as well as mortality.
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Diesel-fuelled CI engines are the primary sources of particulate matter (PM) emissions which harm human health and the urban environment. Elevated PM emission levels can cause respiratory diseases and deteriorate urban air quality and atmospheric visibility. DME, a carbon-neutral and oxygenated fuel, is fast merging as a strong alternative to diesel to reduce PM emissions. The absence of a direct carbon-carbon bond in the molecular structure of DME improves combustion and reduces PM emissions to negligible levels. DME and baseline diesel are experimentally evaluated in a single-cylinder CI genset engine prototype to find the particulate number-size, surface area-size and mass-size distributions. In addition, total particulate number (TPN), total particulate mass (TPM), count mean diameter (CMD) of particulates, particulate morphology and trace metals were assessed. DME genset engine emitted higher numbers of smaller diameter particles, with lower surface area and mass distribution than baseline diesel. For DME, total PM mass emission and CMD of particulates were lower due to particles being finer. Morphological analysis of particulates showed the presence of larger particles from diesel and less bunched agglomerates of nucleation mode particles from the DME genset engine prototype. The trace metal analysis of particulates showed higher presence of trace metals such as Si, Ca, and Na in DME-fuelled engine than in diesel. As an alternative to diesel, DME can reduce PM emissions from genset engines, significantly enhance urban air quality, and minimise the threat of respiratory diseases.
Subject(s)
Air Pollutants , Humans , Air Pollutants/analysis , Vehicle Emissions/analysis , Particulate Matter/analysis , Gasoline/analysis , Dust/analysis , Carbon/analysisABSTRACT
Weissella confusa is a Gram-positive coccus usually found in the microbiota of humans and the environment. Different studies quote that it has caused infections in humans under unfavourable conditions. A case report causing septicemia in an 11-year-old male patient diagnosed with acute pancreatitis and having acute respiratory distress syndrome (ARDS) is presented. The patient was successfully treated with ceftazidime and a piperacillin-tazobactam combination after confirmation of bacteria by matrix-assisted laser desorption and ionisation-time of flight (MALDI-TOF-MS) and antimicrobial sensitivity testing (AST) performed as per the latest Clinical and Laboratory Standard Institute (CLSI) guidelines. The patient was discharged asymptomatically after drainage of fluid and was managed conservatively. Correct identification by the automated method is important for this species and also to find its mode of infection. Because of its similarities to other vancomycin-resistant cocci, isolates of this species might be difficult to identify, leading to drug resistance. A literature review in tabulated form is summarised.
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Methanol adaptation in the transport sector is being encouraged worldwide. Methanol, a high-octane fuel, is emerging as a strong fuel candidate for powering spark-ignition (SI) engines and it can be indigenously produced from low-value agricultural biomass waste and high-ash coal. This study investigated particulates and unregulated and regulated emissions from M15 (15 % v/v methanol, 82 % v/v gasoline, 3 % v/v propanol) fueled Bharat Stage-VI (BS-VI) 2020 compliant light-duty SI engine equipped with a multipoint port fuel injection system and compared it with baseline gasoline fueled engine. The catalytic conversion efficiency for controlling regulated and unregulated emission species are also discussed for both test fuels. The experimental results showed a reduction in carbonaceous emissions from M15 fueled engine. Hydrocarbons (HC), carbon monoxide (CO) and particulate emissions reduced, while oxides of nitrogen (NOx) emissions were comparable to baseline gasoline-fueled engine. The catalytic conversion of CO emission was higher for M15 but lower for HC and NOx emissions. Various unregulated trace emission components such as formaldehyde, acetaldehyde, methane, ethene and propene reduced with methanol addition to gasoline. Considerable reductions in benzene and toluene trace emissions were observed for M15, but methanol and ethane trace emissions were higher. The catalytic conversion of all unregulated trace emission components was comparable for both test fuels except alcohols, where M15 exhibited increased trace emission values. The study reflected that M15 could easily replace gasoline in BS-VI-compliant light-duty SI transportation engines. However, verification of all regulatory emission compliances, diagnostics and durability compliances need be ascertained before large-scale implemetation.
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Objective Sepsis is a major global health issue due to its high death and morbidity rates. To avoid the negative effects of sepsis and decrease mortality, it is vital to diagnose and treat it as soon as possible. Blood cultures can take up to 2 days to give result, and they are not always reliable. According to recent studies, neutrophil CD64 expression might be a sensitive and specific option for assessing sepsis. This study aimed to evaluate the diagnostic performance of a flow cytometry analysis for the expression of neutrophil CD64 in sepsis and its comparison with other standard tests in a tertiary care center. Materials and Methods Prospective analysis on 40 blood samples from suspected sepsis patients admitted to intensive care units with criteria for the systemic inflammatory response syndrome on presentation was performed for expression of neutrophil CD64, C-reactive protein, procalcitonin, and complete blood count. Ten healthy volunteers were also enrolled in this prospective study. The laboratory results were compared in different groups. Results The neutrophil CD64 had the highest diagnostic value to differentiate between patients of sepsis and nonsepsis groups with a sensitivity of 100% (95% confidence interval [CI]: 77.19-100%) and 100% (95% CI: 55.32-86.83%); specificity of 90.00% (95% CI: 59.58-99.49%) and 87.24% (95% CI: 66.69-99.61%); and likelihood ratio of 10.00 and 7.84, respectively. Conclusion The neutrophil CD64 expression provides a more sensitive, specific, and novel marker for the early detection of sepsis in critically ill patients.
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Donor-derived transmission of infections is a rare complication of kidney transplant. Hepatitis A virus (HAV) is a common cause of acute viral hepatitis worldwide, but donor-derived transmission to organ recipients has been reported in the literature only twice previously. The timeline for HAV incubation and clearance in transplant recipients is not well understood. Methods: In 2018, 2 kidneys and a liver were procured from a deceased donor resident of Kentucky, one of many states that was experiencing an HAV outbreak associated with person-to-person transmission through close contact, primarily among people who reported drug use. Both kidney recipients, residents of Virginia, subsequently developed acute HAV infections. We report the results of an investigation to determine the source of transmission and describe the clinical course of HAV infection in the infected kidney recipients. Results: The liver recipient had evidence of immunity to HAV and did not become infected. The donor and both kidney recipients were found to have a genetically identical strain of HAV using a next-generation sequencing-based cyber molecular assay (Global Hepatitis Outbreak Surveillance Technology), confirming donor-derived HAV infections in kidney recipients. At least 1 kidney recipient experienced delayed development of detectable hepatitis A anti-IgM antibodies. By 383 and 198 d posttransplant, HAV RNA was no longer detectable in stool specimens from the left and right kidney recipients, respectively. Conclusions: Adherence to current guidance for hepatitis A vaccination may prevent future morbidity due to HAV among organ recipients. http://links.lww.com/TXD/A548.
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Elizabethkingia anophelis is a gram-negative, aerobic, non-motile rod belonging to the âââââFlavobacteriaceae family. Elizabethkingia is a genus of bacteria commonly found in the environment worldwide and has been detected in soil, river, water, and reservoirs. Over the period, it has emerged as an opportunistic human pathogen involved in neonatal meningitis and sepsis, as well as nosocomial outbreaks in adults with underlying medical conditions, including malignancies, diabetes, and chronic obstructive pulmonary disease. Here, we present a series of three cases of infection of E. anophelis in different clinical samples. These three cases were referred from different departments of King George's Medical University (KGMU), Lucknow, India to the Critical Care Medicine Department of KGMU, and finally succumbed to the infection.