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1.
Circulation ; 2024 Aug 29.
Article in English | MEDLINE | ID: mdl-39206549

ABSTRACT

BACKGROUND: The MINT trial raised concern for harm from a restrictive versus liberal transfusion strategy in patients with acute myocardial infarction (MI) and anemia. Type 1 and type 2 MI are distinct pathophysiological entities that may respond differently to blood transfusion. This analysis sought to determine if the effects of transfusion varied among patients with a type 1 or a type 2 MI and anemia. We hypothesized that the liberal transfusion strategy would be of greater benefit in type 2 than in type 1 MI. METHODS: We compared rates of death or MI at 30 days in patients with type 1 (n=1460) and type 2 (n=1955) MI and anemia who were randomly allocated to a restrictive (threshold of 7 to 8 g/dL) or a liberal (threshold of 10 g/dL) transfusion strategy. RESULTS: The primary outcome of death or MI was observed in 16% of type 1 MI and 15.4% of type 2 MI patients. The rate of death or MI was higher in patients with type 1 MI randomized to a restrictive (18.2%) versus liberal (13.2%) transfusion strategy (RR 1.32, 95% CI 1.04 - 1.67) with no difference observed between the restrictive (15.8% ) and liberal (15.1% ) transfusion strategies in patients with type 2 MI (RR 1.05 95% CI 0.85-1.29). The test for a differential effect of transfusion strategy by MI type was not statistically significant (P-interaction = 0.16). CONCLUSIONS: The concern for harm with a restrictive transfusion strategy in patients with acute MI and anemia raised in the MINT primary outcome manuscript may be more apparent in patients with type 1 than type 2 MI. CLINICAL TRIAL REGISTRATION: ClinicalTrials.gov number, NCT02981407.

2.
Ann Intern Med ; 177(6): 749-758, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38801774

ABSTRACT

BACKGROUND: No randomized controlled trials have substantiated endoscopic decompression of the pancreatic duct in patients with painful chronic pancreatitis. OBJECTIVE: To investigate the pain-relieving effect of pancreatic duct decompression in patients with chronic pancreatitis and intraductal stones. DESIGN: 24-week, parallel-group, randomized controlled trial (ClinicalTrials.gov: NCT03966781). SETTING: Asian Institute of Gastroenterology in India from February 2021 to July 2022. PARTICIPANTS: 106 patients with chronic pancreatitis. INTERVENTION: Combined extracorporeal shock-wave lithotripsy (ESWL) and endoscopic retrograde pancreatography (ERP) compared with sham procedures. MEASUREMENTS: The primary end point was pain relief on a 0- to 10-point visual analog scale (VAS) at 12 weeks. Secondary outcomes were assessed after 12 and 24 weeks and included 30% pain relief, opioid use, pain-free days, questionaries, and complications to interventions. RESULTS: 52 patients in the ESWL/ERP group and 54 in the sham group were included. At 12 weeks, the ESWL/ERP group showed better pain relief compared with the sham group (mean difference in change, -0.7 [95% CI, -1.3 to 0] on the VAS; P = 0.039). The difference between groups was not sustained at the 24-week follow-up, and no differences were seen for 30% pain relief at 12- or 24-week follow-up. The number of pain-free days was increased (median difference, 16.2 days [CI, 3.9 to 28.5 days]), and the number of days using opioids was reduced (median difference, -5.4 days [CI, -9.9 to -0.9 days]) in the ESWL/ERP group compared with the sham group at 12-week follow-up. Safety outcomes were similar between groups. LIMITATION: Single-center study and limited duration of follow-up. CONCLUSION: In patients with chronic pancreatitis and intraductal stones, ESWL with ERP provided modest short-term pain relief. PRIMARY FUNDING SOURCE: Asian Institute of Gastroenterology and Aalborg University Hospital.


Subject(s)
Cholangiopancreatography, Endoscopic Retrograde , Lithotripsy , Pancreatic Ducts , Pancreatitis, Chronic , Humans , Pancreatitis, Chronic/complications , Pancreatitis, Chronic/therapy , Male , Female , Lithotripsy/adverse effects , Lithotripsy/methods , Middle Aged , Adult , Cholangiopancreatography, Endoscopic Retrograde/adverse effects , Pancreatic Ducts/diagnostic imaging , Pain Measurement , Abdominal Pain/etiology , Abdominal Pain/therapy , Pain Management/methods , Treatment Outcome
3.
Circulation ; 147(4): 310-323, 2023 Jan 24.
Article in English | MEDLINE | ID: mdl-36533535

ABSTRACT

BACKGROUND: Given the important role of cardiac injury and neurohormonal activation in the pathways leading from hypertension to heart failure and strong associations observed between hypertension and its sequelae on hs-cTnT (high-sensitivity cardiac troponin T) and NT-proBNP (N-terminal pro-B-type natriuretic peptide) levels, we hypothesized that intensive systolic blood pressure (SBP) lowering would decrease levels of hs-cTnT and NT-proBNP. METHODS: hs-cTnT and NT-proBNP were measured at baseline and 1 year from stored specimens in SPRINT (Systolic Blood Pressure Intervention Trial). Changes in biomarkers were evaluated continuously on the log scale and according to categories (≥50% increase, ≥50% decrease, or <50% change). The effect of intensive SBP lowering on continuous and categorical changes in biomarker levels were assessed using linear and multinomial logistic regression models, respectively. The association between changes in biomarkers on heart failure and death was assessed using multivariable-adjusted Cox proportional hazards models. RESULTS: Randomization to intensive SBP lowering (versus standard SBP management) resulted in a 3% increase in hs-cTnT levels over 1-year follow-up (geometric mean ratio, 1.03 [95% CI, 1.01-1.04]) and a higher proportion of participants with ≥50% increase (odds ratio, 1.47 [95% CI, 1.13, 1.90]). In contrast, randomization to intensive SBP lowering led to a 10% decrease in NT-proBNP (geometric mean ratio, 0.90 [95% CI, 0.87-0.93]) and a lower probability of ≥50% increase in NT-proBNP (odds ratio, 0.57 [95% CI, 0.46-0.72]). The association of randomized treatment assignment on change in hs-cTnT was completely attenuated after accounting for changes in estimated glomerular filtration rate over follow-up, whereas the association of treatment with NT-proBNP was completely attenuated after adjusting for change in SBP. Increases in hs-cTnT and NT-proBNP from baseline to 1 year were associated with higher risk for heart failure and death, with no significant interactions by treatment assignment. CONCLUSIONS: Intensive SBP lowering increased hs-cTnT, mediated by the effect of SBP lowering on reduced kidney filtration. In contrast, intensive SBP lowering decreased NT-proBNP, a finding that was explained by the decrease in SBP. These findings highlight the importance of noncardiac factors influencing variation in cardiac biomarkers and raise questions about the potential role of hs-cTnT as a surrogate marker for heart failure or death in SBP-lowering studies.


Subject(s)
Heart Failure , Hypertension , Humans , Troponin , Blood Pressure , Natriuretic Peptide, Brain , Troponin T , Vasodilator Agents , Biomarkers , Peptide Fragments
4.
Am J Physiol Heart Circ Physiol ; 326(6): H1498-H1514, 2024 06 01.
Article in English | MEDLINE | ID: mdl-38639739

ABSTRACT

Heart failure (HF) with preserved ejection fraction (HFpEF) is the most common cause of pulmonary hypertension (PH) worldwide and is strongly associated with adverse clinical outcomes. The American Heart Association recently highlighted a call to action regarding the distinct lack of evidence-based treatments for PH due to poorly understood pathophysiology of PH attributable to HFpEF (PH-HFpEF). Prior studies have described cardiophysiological mechanisms to explain the development of isolated postcapillary PH (ipc-PH); however, the consequent increase in pulmonary vascular (PV) resistance (PVR) may lead to the less understood and more fatal combined pre- and postcapillary PH (cpc-PH). Metabolic disease and inflammatory dysregulation have been suggested to predispose PH, yet the molecular mechanisms are unknown. Although PH-HFpEF has been studied to partly share vasoactive neurohormonal mediators with primary pulmonary arterial hypertension (PAH), clinical trials that have targeted these pathways have been unsuccessful. The increased mortality of patients with PH-HFpEF necessitates further study into viable mechanistic targets involved in disease progression. We aim to summarize the current pathophysiological and clinical understanding of PH-HFpEF, highlight the role of known molecular mechanisms in the progression of PV disease, and introduce a novel concept that lipid metabolism may be attenuating and propagating PH-HFpEF.NEW & NOTEWORTHY Our review addresses pulmonary hypertension (PH) attributable to heart failure (HF) with preserved ejection fraction (HFpEF; PH-HFpEF). Current knowledge gaps in PH-HFpEF pathophysiology have led to a lack of therapeutic targets. Thus, we address identified knowledge gaps in a comprehensive review, focusing on current clinical epidemiology, known pathophysiology, and previously studied molecular mechanisms. We also introduce a comprehensive review of polyunsaturated fatty acid (PUFA) lipid inflammatory mediators in PH-HFpEF.


Subject(s)
Heart Failure , Hypertension, Pulmonary , Stroke Volume , Humans , Heart Failure/physiopathology , Heart Failure/metabolism , Hypertension, Pulmonary/physiopathology , Hypertension, Pulmonary/metabolism , Hypertension, Pulmonary/etiology , Animals , Ventricular Function, Left , Pulmonary Artery/physiopathology , Pulmonary Artery/metabolism
5.
Am J Gastroenterol ; 119(1): 176-182, 2024 Jan 01.
Article in English | MEDLINE | ID: mdl-37732816

ABSTRACT

INTRODUCTION: Successful biliary drainage and antibiotics are the mainstays of therapy in management of patients with acute cholangitis. However, the duration of antibiotic therapy after successful biliary drainage has not been prospectively evaluated. We conducted a single-center, randomized, noninferiority trial to compare short duration of antibiotic therapy with conventional duration of antibiotic therapy in patients with moderate or severe cholangitis. METHODS: Consecutive patients were screened for the inclusion criteria and randomized into either conventional duration (CD) group (8 days) or short duration (SD) group (4 days) of antibiotic therapy. The primary outcome was clinical cure (absence of recurrence of cholangitis at day 30 and >50% reduction of bilirubin at day 15). Secondary outcomes were total days of antibiotic therapy and hospitalization within 30 days, antibiotic-related adverse events, and all-cause mortality at day 30. RESULTS: The study included 120 patients (the mean age was 55.85 ± 13.52 years, and 50% were male patients). Of them, 51.7% patients had malignant etiology and 76.7% patients had moderate cholangitis. Clinical cure was seen in 79.66% (95% confidence interval, 67.58%-88.12%) patients in the CD group and 77.97% (95% confidence interval, 65.74%-86.78%) patients in the SD group ( P = 0.822). On multivariate analysis, malignant etiology and hypotension at presentation were associated with lower clinical cure. Total duration of antibiotics required postintervention was lower in the SD group (8.58 ± 1.92 and 4.75 ± 2.32 days; P < 0.001). Duration of hospitalization and mortality were similar in both the groups. DISCUSSION: Short duration of antibiotics is noninferior to conventional duration in patients with moderate-to-severe cholangitis in terms of clinical cure, recurrence of cholangitis, and overall mortality.


Subject(s)
Anti-Bacterial Agents , Cholangitis , Humans , Male , Adult , Middle Aged , Aged , Female , Acute Disease , Cholangitis/drug therapy , Cholangitis/etiology
6.
Gastrointest Endosc ; 99(1): 1-9, 2024 01.
Article in English | MEDLINE | ID: mdl-37598863

ABSTRACT

BACKGROUND AND AIMS: GERD is common after peroral endoscopic myotomy (POEM). Selective sparing of oblique fibers may reduce the incidence of reflux esophagitis after POEM. In this study, we compared the incidence of GERD between conventional myotomy (CM) versus oblique fiber-sparing (OFS) myotomy in patients with achalasia. METHODS: Eligible patients with type I and II achalasia who underwent POEM from January 2020 to October 2020 were randomized into 2 groups (CM and OFS myotomy). Exclusion criteria were type III achalasia, sigmoid esophagus, and history of Heller's myotomy. The primary study outcome was incidence of reflux esophagitis (at least grade B) in the 2 groups. Secondary outcomes were reflux symptoms, esophageal acid exposure, clinical success, and adverse events. RESULTS: One hundred fifteen patients were randomized into CM (n = 58) and OFS myotomy (n = 57) groups. POEM was technically successful in all patients. Overall, reflux esophagitis was found in 56 patients (48.7%). The incidence of at least grade B esophagitis was similar in both groups (CM vs OFS myotomy: 25.9% vs 31.6%, P = .541). The mean number of reflux episodes (48.2 ± 36.6 vs 48.9 ± 40.3, P = .933), increased esophageal acid exposure >6% (45.5% vs 31.7%, P = .266), and high DeMeester scores (38.6% vs 41.5%, P = .827) were similar in both groups. There was no difference in the rate of symptomatic reflux (GERD questionnaire score >7) or use of proton pump inhibitors at 1 year. CONCLUSIONS: Sparing of sling fibers has no significant impact on the incidence of significant reflux esophagitis after POEM. Novel strategies need to be explored to prevent reflux after POEM. (Clinical trial registration number: NCT04229342.).


Subject(s)
Esophageal Achalasia , Esophagitis, Peptic , Gastroesophageal Reflux , Myotomy , Natural Orifice Endoscopic Surgery , Humans , Esophageal Achalasia/complications , Esophagitis, Peptic/epidemiology , Esophagitis, Peptic/etiology , Esophagitis, Peptic/prevention & control , Cardia/surgery , Natural Orifice Endoscopic Surgery/adverse effects , Gastroesophageal Reflux/epidemiology , Gastroesophageal Reflux/etiology , Gastroesophageal Reflux/prevention & control , Myotomy/adverse effects , Treatment Outcome , Esophageal Sphincter, Lower/surgery
7.
Endoscopy ; 2024 Jul 30.
Article in English | MEDLINE | ID: mdl-38782021

ABSTRACT

BACKGROUND: Endoscopic ultrasound (EUS)-guided drainage of walled-off necrosis (WON) using either plastic or metal stents is the mainstay of WON management. Our single-center randomized controlled trial aimed to evaluate the efficacy of biflanged metal stents (BFMSs) and plastic stents for WON drainage. METHODS: Patients with symptomatic WON amenable to EUS-guided drainage were randomized to receive either BFMSs or plastic stents. The primary outcome was reintervention-free clinical success at 4 weeks. Secondary outcomes were: overall clinical success (complete resolution of symptoms and significant reduction in size of WON [<50% of original size and <5 cm in largest diameter at 4-week follow-up]); number of reinterventions; adverse events (AEs); hospital stay for first admission; and medium-term outcomes at 6 months (recurrence, disconnected pancreatic duct, chronic pancreatitis, and new-onset diabetes mellitus). RESULTS: 92 patients were randomized: 46 in each arm. The reintervention-free clinical success rate was significantly higher in the BFMS group on intention-to-treat analysis (67.4% vs. 43.5%; P = 0.02). Overall clinical success at 1 month was similar in both groups. There were significantly fewer reinterventions (median 0 [IQR 0-1] vs. 1 [0-2]; P = 0.03) and shorter hospital stays in the BFMS group (7.0 [SD 3.4] vs. 9.1 [5.5] days; P = 0.04). There were no differences in procedure-related AEs, mortality, or medium-term outcomes. CONCLUSIONS: BFMSs provide better reintervention-free clinical success at 4 weeks, with shorter hospital stay and without increased risks of AEs, compared with plastic stents for EUS-guided drainage of WON. Medium-term outcomes are however similar for both stent types.

8.
J Gastroenterol Hepatol ; 39(2): 353-359, 2024 Feb.
Article in English | MEDLINE | ID: mdl-37897304

ABSTRACT

BACKGROUND AND AIM: Resection for Crohn's disease (CD) related strictures is definitive but carries risk of morbidity, recurrence, and short bowel syndrome. On the contrary, the durability of endotherapy (ET) for CD-related strictures is questionable. Prospective comparative studies are limited. We aimed to prospectively compare the outcomes of ET in CD strictures with a case-matched surgical therapy (ST) cohort. METHODS: Patients undergoing ET or resection for primary CD strictures (symptomatic, non-traversable, < 5 cm length, n ≤ 3) between January 2021 and March 2022 in a high-volume tertiary center were compared with regard to recurrent symptoms, escalation of therapy, re-intervention, and re-operation based on propensity matched analysis. RESULTS: Fifty-nine patients [49% ET, 57.6% male, median (years): 34 (15-74)] had ≥ 12 months of follow up. Before propensity matching, cumulative re-intervention rate was significantly higher with ET [34.5% (10/29) vs 3.3% (1/30) ST, P = 0.002]. Recurrent symptoms (34.5% vs 26.7%, P = 0.42), escalation of medical therapy (27.5% vs 23.3%, P = 0.64), and re-operation (7.4% vs 3.1%, P = 0.55) were comparable. In propensity matched analysis adjusted for demographics, disease, and stricture characteristics [n = 42, 21 each, 62% male, median (years): 32 (15-60)], cumulative probability of re-intervention rates was higher in ET (28.6% vs 4.8%, P = 0.042). The cumulative probability of recurrent symptoms (ET: 33.3% vs surgery 33.3%, P = 0.93), therapy escalation (ET: 23.8% vs surgery 28.6%, P = 0.75), and re-operation (ET: 9.5% vs surgery 4.8%, P = 0.57) was similar. CONCLUSIONS: ET for CD strictures require higher re-interventions compared with resection although re-operation could be avoided in the majority with comparable symptom free survival at 1 year.


Subject(s)
Crohn Disease , Intestinal Obstruction , Humans , Male , Female , Crohn Disease/complications , Crohn Disease/surgery , Constriction, Pathologic/etiology , Constriction, Pathologic/surgery , Prospective Studies , Intestinal Obstruction/etiology , Intestinal Obstruction/surgery , Treatment Outcome , Dilatation , Retrospective Studies , Endoscopy, Gastrointestinal
9.
Biologicals ; 85: 101722, 2024 Feb.
Article in English | MEDLINE | ID: mdl-37956628

ABSTRACT

Current sterility test performed for most biological products takes 14 days. We evaluated solid medium, containing 5% blood for use in the membrane filtration (MF) and direct inoculation (DI) sterility test. Representative microorganisms prepared in a sample matrix at approximately 0.1, 1, 10 and 100 colony forming units were tested for growth by compendial MF sterility test using fluid thioglycolate medium and tryptic soy broth and also on the Schaedler blood agar (SBA). Sterility test performed on SBA was significantly more sensitive and faster in detecting various microorganisms than the compendial method, particularly for sample matrix containing 0.01% thimerosal (p < 0.05). SBA detected all microorganisms within 7 days. To implement solid medium in the DI sterility test, multiple BA plates were inoculated with the sample. All representative microorganisms were detected within 5 days. The sterility test using solid medium required 3 different incubation conditions, 30-35 °C aerobically and anaerobically to detect bacteria, and at 20-25 °C aerobically to detect mold and yeast. To eliminate aerobic incubation of solid medium at 20-25 °C, we evaluated representative species of mold and yeast for their growth at 30-35 °C and 20-25 °C in the sterility test performed on solid medium. Penicillium chrysogenum could not be detected at 30-35 °C consistently within 7 days. Sterility test performed on solid medium without any additional technology could be completed in 7 days, as compared to the 14 days required for the current compendial method.


Subject(s)
Biological Products , Infertility , Humans , Saccharomyces cerevisiae , Culture Media , Bacteria
10.
Dig Endosc ; 36(3): 274-289, 2024 Mar.
Article in English | MEDLINE | ID: mdl-37573562

ABSTRACT

OBJECTIVES: Confocal laser endomicroscopy (CLE) and endocytoscopy (EC) are ultra-high definition (HD) imaging modalities that enable real-time histological assessment. Although existent for nearly two decades, their role in current clinical decision making in inflammatory bowel disease management is not well defined. METHODS: We searched PubMed using keywords ("confocal" OR "CLE" OR "endocytoscopy") AND ("IBD" OR "inflammatory bowel" OR "Crohn*" OR "Crohn's" OR "colitis ulcerosa" OR "ulcerative colitis") between 2005 and March 2023. We identified 52 studies for detailed review. RESULTS: Confocal laser endomicroscopy was useful in real-time assessment of histologic inflammation and dysplasia characterization in both ulcerative colitis (UC) and Crohn's disease. Although CLE was associated with higher per-biopsy yield for UC-associated neoplasia (UCAN), the benefit was offset by higher procedure time, frequent equipment failure, and conflicting results on incremental yield over chromoendoscopy. Assessment of barrier dysfunction by CLE did not correlate with disease/endoscopic activity but could predict major adverse outcomes. The implications of residual CLE abnormalities in endoscopic remission remain uncertain. Ex vivo binding of labeled biologics can help in predicting biologic response in UC. EC can discriminate mucosal inflammatory cells by morphology and allows assessment of histologic activity. EC combined with pit pattern was better than pit pattern alone for UCAN. Artificial intelligence-assisted EC in UCAN needs further study. CONCLUSION: Ultra-HD imaging in inflammatory bowel disease can be useful in assessment of UCAN, barrier dysfunction, predicting histologic remission, and biologic response. Future controlled studies are warranted to define the role of these novel technologies in clinical decision making.


Subject(s)
Colitis, Ulcerative , Crohn Disease , Inflammatory Bowel Diseases , Humans , Artificial Intelligence , Microscopy, Confocal/methods , Inflammatory Bowel Diseases/diagnostic imaging , Inflammatory Bowel Diseases/complications , Endoscopy, Gastrointestinal/methods , Crohn Disease/diagnostic imaging , Colitis, Ulcerative/complications
11.
Gut ; 72(10): 1866-1874, 2023 10.
Article in English | MEDLINE | ID: mdl-37197904

ABSTRACT

OBJECTIVE: Recent studies have shown that motorised spiral enteroscopy (MSE) enables deeper and total small bowel evaluation compared with single-balloon enteroscopy (SBE) in suspected Crohn's disease (CD) when analysed per procedure. However, no randomised controlled study has compared bidirectional MSE with bidirectional SBE in suspected CD. DESIGN: Patients with suspected CD requiring small bowel enteroscopy were randomly assigned to either SBE or MSE between May 2022 and September 2022 in a high volume tertiary centre. Bidirectional enteroscopy was done if intended lesion could not be reached on unidirectional study. Comparison was made with regard to technical success (ability to reach lesion), diagnostic yield, depth of maximal insertion (DMI), procedure time and total enteroscopy rates. Depth:time ratio was calculated to avoid confounding for the location of lesion. RESULTS: Among 125 suspected patients with CD (28% female, 18-65 years, median 41 years), 62 and 63 underwent MSE and SBE, respectively. The overall technical success (98.4 %: MSE, 90.5 %: SBE; p=0.11), diagnostic yield (95.2%: MSE; 87.3%: SBE, p=0.2) and procedure time were not significantly different. However, MSE appeared to have higher technical success (96.8% vs 80.7%, p=0.08) in deeper small bowel (distal jejunum/proximal ileum) with higher DMI, higher depth:time ratio and total enteroscopy rates when attempted (77.8% vs 11.1%, p=0.0007). Both the modalities were safe although minor adverse events were more common with MSE. CONCLUSION: MSE and SBE have comparable technical success and diagnostic yield for small bowel evaluation in suspected CD. MSE scores over SBE with regard to deeper small bowel evaluation with complete small bowel coverage and higher depth of insertion in a shorter time. TRIAL REGISTRATION NUMBER: NCT05363930.


Subject(s)
Crohn Disease , Intestinal Diseases , Single-Balloon Enteroscopy , Humans , Female , Male , Crohn Disease/pathology , Endoscopy, Gastrointestinal/methods , Intestine, Small/pathology , Ileum/pathology , Double-Balloon Enteroscopy/adverse effects , Intestinal Diseases/diagnosis
12.
Semin Cancer Biol ; 80: 87-106, 2022 05.
Article in English | MEDLINE | ID: mdl-32068087

ABSTRACT

Plant lectins, a natural source of glycans with a therapeutic potential may lead to the discovery of new targeted therapies. Glycans extracted from plant lectins are known to act as ligands for C-type lectin receptors (CLRs) that are primarily present on immune cells. Plant-derived glycosylated lectins offer diversity in their N-linked oligosaccharide structures that can serve as a unique source of homogenous and heterogenous glycans. Among the plant lectins-derived glycan motifs, Man9GlcNAc2Asn exhibits high-affinity interactions with CLRs that may resemble glycan motifs of pathogens. Thus, such glycan domains when presented along with antigens complexed with a nanocarrier of choice may bewilder the immune cells and direct antigen cross-presentation - a cytotoxic T lymphocyte immune response mediated by CD8+ T cells. Glycan structure analysis has attracted considerable interest as glycans are looked upon as better therapeutic alternatives than monoclonal antibodies due to their cost-effectiveness, reduced toxicity and side effects, and high specificity. Furthermore, this approach will be useful to understand whether the multivalent glycan presentation on the surface of nanocarriers can overcome the low-affinity lectin-ligand interaction and thereby modulation of CLR-dependent immune response. Besides this, understanding how the heterogeneity of glycan structure impacts the antigen cross-presentation is pivotal to develop alternative targeted therapies. In the present review, we discuss the findings on structural analysis of glycans from natural lectins performed using GlycanBuilder2 - a software tool based on a thorough literature review of natural lectins. Additionally, we discuss how multiple parameters like the orientation of glycan ligands, ligand density, simultaneous targeting of multiple CLRs and design of antigen delivery nanocarriers may influence the CLR targeting efficacy. Integrating this information will eventually set the ground for new generation immunotherapeutic vaccine design for the treatment of various human malignancies.


Subject(s)
CD8-Positive T-Lymphocytes , Neoplasms , Antigen Presentation , Dendritic Cells , Humans , Immunotherapy , Lectins, C-Type/chemistry , Ligands , Neoplasms/therapy , Plant Lectins , Polysaccharides/chemistry
13.
Am J Gastroenterol ; 2023 Dec 20.
Article in English | MEDLINE | ID: mdl-37975600

ABSTRACT

INTRODUCTION: A substantial proportion of patients with esophageal adenocarcinoma (EAC) do not report gastroesophageal reflux disease (GERD) symptoms. This study aimed to compare the risk factor profiles and cancer stage at presentation of patients with EAC with and without prior GERD. METHODS: In this retrospective cross-sectional study, patients with EAC were divided into 2 cohorts: (i) EAC with prior GERD: patients who reported typical GERD symptoms (heartburn or regurgitation) ≥1 year before cancer diagnosis and (ii) EAC without prior GERD: patients who did not report prior GERD symptoms or reported symptoms within 1 year of their cancer diagnosis. Baseline demographics, risk factors, and cancer stage at presentation were compared between the 2 cohorts. In addition, the distribution of patients based on numbers of BE/EAC-associated risk factors (1, 2, 3, 4, and 5 or more) was examined in the symptomatic and asymptomatic cohorts. RESULTS: Over 13 years, 388 patients with EAC with prior GERD and 245 patients with EAC without prior GERD were recruited. Both groups had similar baseline demographics and risk factors, but patients with EAC with prior GERD were more likely to have a history of BE. Asymptomatic patients had more advanced disease. Patients with 3 or more BE/EAC-related risk factors formed the largest proportion of patients in both the symptomatic and asymptomatic cohorts. DISCUSSION: Patients with EAC with and without prior GERD symptoms are phenotypically similar, suggesting that BE screening efforts to prevent or detect early EAC should not be restricted to just those with GERD.

14.
J Vasc Surg ; 78(2): 498-505.e1, 2023 08.
Article in English | MEDLINE | ID: mdl-37100234

ABSTRACT

OBJECTIVE: Patients undergoing peripheral vascular intervention (PVI) (ie, endovascular revascularization) for symptomatic lower extremity peripheral artery disease remain at high risk for major adverse limb and cardiovascular events. High-quality evidence demonstrates the addition of a low-dose oral factor Xa inhibitor to single antiplatelet therapy, termed dual pathway inhibition (DPI), reduces the incidence of major adverse events in this population. This study aims to describe the longitudinal trends in factor Xa inhibitor initiation after PVI, identify patient and procedural characteristics associated with factor Xa inhibitor use, and describe temporal trends in antithrombic therapy post-PVI before vs after VOYAGER PAD. METHODS: This retrospective cross-sectional study was performed using data from the Vascular Quality Initiative PVI registry from January 2018 through June 2022. Multivariate logistic regression was utilized to determine predictors of factor Xa inhibitor initiation following PVI, reported as odds ratios (ORs) with 95% confidence intervals (CIs). RESULTS: A total of 91,569 PVI procedures were deemed potentially eligible for factor Xa inhibitor initiation and were included in this analysis. Overall rates of factor Xa inhibitor initiation after PVI increased from 3.5% in 2018 to 9.1% in 2022 (P < .0001). The strongest positive predictors of factor Xa inhibitor initiation after PVI were non-elective (OR, 4.36; 95% CI, 4.06-4.68; P < .0001) or emergent (OR, 8.20; 95% CI, 7.14-9.41; P < .0001) status. The strongest negative predictor was postoperative dual antiplatelet therapy prescription (OR, 0.20; 95% CI, 0.17-0.23; P < .0001), highlighting significant hesitation about use of DPI after PVI and limited translation of VOYAGER PAD findings into clinical practice. Antiplatelet medications remain the most common antithrombotic regimen after PVI, with almost 70% of subjects discharged on dual antiplatelet therapy and approximately 20% discharged on single antiplatelet therapy. CONCLUSIONS: Factor Xa inhibitor initiation after PVI has increased in recent years, although the absolute rate remains low, and most eligible patients are not prescribed this treatment.


Subject(s)
Endovascular Procedures , Peripheral Arterial Disease , Humans , Platelet Aggregation Inhibitors/adverse effects , Factor Xa Inhibitors/adverse effects , Fibrinolytic Agents/therapeutic use , Risk Factors , Endovascular Procedures/adverse effects , Retrospective Studies , Cross-Sectional Studies , Treatment Outcome , Peripheral Arterial Disease/diagnosis , Peripheral Arterial Disease/drug therapy , Lower Extremity/blood supply
15.
Vasc Med ; 28(3): 205-213, 2023 06.
Article in English | MEDLINE | ID: mdl-36597656

ABSTRACT

INTRODUCTION: Peripheral artery disease (PAD) is a common progressive atherosclerotic disease associated with significant morbidity and mortality in the US; however, data regarding PAD-related mortality trends are limited. This study aims to characterize contemporary trends in mortality across sociodemographic and regional groups. METHODS: The Centers for Disease Control and Prevention Wide-Ranging OnLine Data for Epidemiologic Research (CDC WONDER) was queried for data regarding PAD-related deaths from 2000 to 2019 in the overall sample and different demographic (age, sex, race/ethnicity) and regional (state, urban-rural) subgroups. Crude and age-adjusted mortality rates (CMR and AAMR, respectively) per 100,000 people were calculated. Associated annual percentage changes (APC) were computed using Joinpoint Regression Program Version 4.9.0.0 trend analysis software. RESULTS: Between 2000 and 2019, a total of 1,959,050 PAD-related deaths occurred in the study population. Overall, AAMR decreased from 72.8 per 100,000 in 2000 to 32.35 per 100,000 in 2019 with initially decreasing APCs followed by no significant decline from 2016 to 2019. Most demographic and regional subgroups showed initial declines in AAMRs during the study period, with many groups exhibiting no change in mortality in recent years. However, men, non-Hispanic (NH) Black or African American individuals, people aged ⩾ 85 years, and rural counties were associated with the highest AAMRs of their respective subgroups. Notably, there was an increase in crude mortality rate among individuals 25-39 years of age from 2009 to 2019. CONCLUSION: Despite initial improvement, PAD-related mortality has remained stagnant in recent years. Disparities have persisted across several demographic and regional groups, requiring further investigation.


Subject(s)
Atherosclerosis , Peripheral Arterial Disease , Aged , Humans , Male , Atherosclerosis/mortality , Black or African American , Ethnicity , Health Status Disparities , Peripheral Arterial Disease/diagnosis , Peripheral Arterial Disease/mortality , United States/epidemiology , Female , Adult , Middle Aged , Aged, 80 and over
16.
Dig Dis Sci ; 68(8): 3436-3441, 2023 08.
Article in English | MEDLINE | ID: mdl-37269369

ABSTRACT

BACKGROUND AND AIMS: Replacing lumen apposing metal stents (LAMS) with permanent indwelling plastic stents after the resolution of pancreatic fluid collections (PFC) in patients with disconnected pancreatic duct (DPD) is a debatable issue. We retrospectively evaluated the safety and efficacy of replacing LAMS with long-term indwelling transmural plastic stents in patients with DPD at head/neck of pancreas. METHODS: The database of patients with PFC who underwent endoscopic transmural drainage with LAMS over the last three years was retrospectively analyzed to identify patients with DPD at the level of the head/neck of the pancreas. The patients were divided into two groups: Group A where LAMS could be replaced with plastic stents and Group B, where LAMS could not be replaced with plastic stents. The two groups were compared for recurrence of symptoms/PFC and complications. RESULTS: Out of 53 patients studied, 39 patients (34 males; mean age: 35.7 ± 6.6 years) were included in Group A and 14 patients in Group B (11 males; mean age: 33.4 ± 5.9 years). The demographic profile as well as indwelling time of LAMS was comparable between two groups. PFC recurrence was observed in 2/39 (5.1%) patients in group A and 6/14 (42.8%) patients in group B (p = 0.0001) with one patient in group A and 5 patients in group B requiring repeat intervention for recurrent PFC. CONCLUSIONS: Long-term transmural plastic stent placement after removal of LAMS in pancreatic duct disconnection at head/neck of the pancreas is safe and effective strategy to prevent the recurrence of PFC.


Subject(s)
Pancreatic Diseases , Plastics , Male , Humans , Adult , Retrospective Studies , Pancreas , Pancreatic Diseases/surgery , Pancreatic Diseases/etiology , Stents/adverse effects , Drainage/adverse effects , Endosonography , Treatment Outcome
17.
Dig Dis Sci ; 68(7): 3167-3173, 2023 07.
Article in English | MEDLINE | ID: mdl-37160540

ABSTRACT

BACKGROUND: Improvements in survival after pancreaticoduodenectomy has increased the number of patients potentially at risk of pancreatic insufficiency. AIMS: We studied long-term (> 1 year) pancreatic functions (endocrine and exocrine) after pancreaticoduodenectomy and aimed to recognize the impact of various clinicopathological factors and postoperative complications on pancreatic functions. METHODS: All patients who underwent pancreaticoduodenectomy at least 1 year prior were recruited from July 2020 to December 2021. Endocrine function was assessed using HbA1c, fasting blood sugar and postprandial blood sugar levels. Pancreatic exocrine function was assessed clinically with history of steatorrhea and objectively with quantitative estimation of fecal elastase-1 levels in stool samples. Volume of remnant pancreas, parenchymal thickness and duct diameter were assessed by computed tomography. Quality of life assessment was done using SF-36 questionnaire. RESULTS: Of the 106 patients assessed, 64 patients met the inclusion criteria. Endocrine insufficiency was noted in 51.6%, and 34.3% had new onset diabetes mellitus. The incidence of pancreatic exocrine insufficiency was 87.5% and severe insufficiency was found in 62.5% of patients. Twenty-nine (45.3%) patients had both exocrine and endocrine insufficiency. Patients with CRPOPF had higher risk of severe exocrine insufficiency (5 vs. 2, OR 1.57(0.28-8.81) p = 0.6). The SF-36 scores were lower than general population especially in role limitation due to physical health, role limitation due to emotional problems, energy/fatigue, general health perception and health change domains. CONCLUSION: Post-pancreaticoduodenectomy patients have a high frequency of pancreatic insufficiency and should be screened for same. The post-operative pancreatic fistula increases the risk of pancreatic exocrine insufficiency.


Subject(s)
Exocrine Pancreatic Insufficiency , Pancreaticoduodenectomy , Humans , Pancreaticoduodenectomy/adverse effects , Pancreaticoduodenectomy/methods , Blood Glucose , Quality of Life , Pancreas/diagnostic imaging , Pancreas/surgery , Pancreas/pathology , Exocrine Pancreatic Insufficiency/diagnosis , Exocrine Pancreatic Insufficiency/epidemiology , Exocrine Pancreatic Insufficiency/etiology , Postoperative Complications/etiology
18.
Dig Dis Sci ; 68(3): 988-994, 2023 03.
Article in English | MEDLINE | ID: mdl-35867193

ABSTRACT

BACKGROUND: Incidence and risk factors for the development of extremity deep vein thrombosis (eDVT) in admitted patients of acute pancreatitis have been rarely explored. AIMS: To identify the incidence of eDVT and to explore role of clinical scores for predicting eDVT in admitted patients of acute pancreatitis. METHODS: We prospectively enrolled admitted patients of acute pancreatitis and performed a weekly eDVT screen for the duration of their admission. Well's score and Padua's score were also calculated weekly. The incidence of venous thrombosis (eDVT and splanchnic thrombosis based on contrast-enhanced CT scan abdomen) was noted, and the risk factors were determined using multivariate analysis. The correlation between Well's score, Padua's score, and development of DVT was calculated using Pearson's correlation. RESULTS: Of the 102 patients of acute pancreatitis enrolled, 73.5% of patients had necrotizing pancreatitis. Total of 46 patients (45.1%) developed thrombosis: 43 patients had splanchnic vein thrombosis; 5 patients had eDVT; and 1 patient had pulmonary embolism. Patients with eDVT had higher BISAP score (2.6 ± 0.9 vs 1.7 ± 0.8; p = 0.039), requirement of mechanical ventilation (60% vs 8.2%; p = 0.008), and mortality (60% vs 12.4%; p = 0.022). Well's score of ≥ 2 had sensitivity and specificity of 80% and 96.9% for prediction of eDVT and it had better correlation with the development of eDVT compared to Pauda's score. CONCLUSION: Incidence of DVT is 5% in patients with acute pancreatitis requiring admission. It is associated with higher disease severity and mortality. The Well's score is useful to predict the development of eDVT in routine clinical practice.


Subject(s)
Pancreatitis , Thrombosis , Venous Thrombosis , Humans , Pancreatitis/complications , Pancreatitis/epidemiology , Prospective Studies , Acute Disease , Venous Thrombosis/diagnostic imaging , Venous Thrombosis/epidemiology , Venous Thrombosis/complications
19.
Ann Hepatol ; 28(4): 101098, 2023.
Article in English | MEDLINE | ID: mdl-37028597

ABSTRACT

INTRODUCTION AND OBJECTIVES: Lately, there has been a steady increase in early liver transplantation for alcohol-associated hepatitis (AAH). Although several studies have reported favorable outcomes with cadaveric early liver transplantation, the experiences with early living donor liver transplantation (eLDLT) are limited. The primary objective was to assess one-year survival in patients with AAH who underwent eLDLT. The secondary objectives were to describe the donor characteristics, assess the complications following eLDLT, and the rate of alcohol relapse. MATERIALS AND METHODS: This single-center retrospective study was conducted at AIG Hospitals, Hyderabad, India, between April 1, 2020, and December 31, 2021. RESULTS: Twenty-five patients underwent eLDLT. The mean time from abstinence to eLDLT was 92.4 ± 42.94 days. The mean model for end-stage liver disease and discriminant function score at eLDLT were 28.16 ± 2.89 and 104 ± 34.56, respectively. The mean graft-to-recipient weight ratio was 0.85 ± 0.12. Survival was 72% (95%CI, 50.61-88) after a median follow-up of 551 (23-932) days post-LT. Of the 18 women donors,11 were the wives of the recipient. Six of the nine infected recipients died: three of fungal sepsis, two of bacterial sepsis, and one of COVID-19. One patient developed hepatic artery thrombosis and died of early graft dysfunction. Twenty percent had alcohol relapse. CONCLUSIONS: eLDLT is a reasonable treatment option for patients with AAH, with a survival of 72% in our experience. Infections early on post-LT accounted for mortality, and thus a high index of suspicion of infections and vigorous surveillance, in a condition prone to infections, are needed to improve outcomes.


Subject(s)
COVID-19 , End Stage Liver Disease , Hepatitis, Alcoholic , Liver Transplantation , Humans , Female , Liver Transplantation/adverse effects , Living Donors , Treatment Outcome , Retrospective Studies , Severity of Illness Index , Neoplasm Recurrence, Local , Hepatitis, Alcoholic/diagnosis , Hepatitis, Alcoholic/surgery , Ethanol , Graft Survival
20.
J Assoc Physicians India ; 71(9): 104-105, 2023 Sep.
Article in English | MEDLINE | ID: mdl-38700310

ABSTRACT

The Milk-Alkali syndrome (MAS) is identified by the triad of high serum levels of calcium, metabolic alkalosis, and acute kidney injury, usually caused by consuming excessive amounts of calcium and absorbable alkali. If not treated promptly, the syndrome can result in rapid hypercalcemia, acute renal failure, and metastatic calcification. Notably, an increasing number of cases of MAS have been observed, potentially due to the rampant use of calcium-based over-the-counter supplements for the prevention and treatment of osteoporosis in postmenopausal women. Herein, we report a case of severe hypercalcemia due to prolonged intake of calcium carbonate supplements in the absence of any alkali. The case report highlights the importance of including venous blood gas (VBG) analysis as a part of the workup for hypercalcemia, as metabolic alkalosis can help clinch the diagnosis of MAS in the setting of severe hypercalcemia. How to cite this article: Sahu U, Trivedi T, Gupta R. Milk-Alkali Syndrome: A Century-old Cause of Hypercalcemia Requires the Addition of Venous Blood Gas in Hypercalcemia Workup. J Assoc Physicians India 2023;71(9):104-105.


Subject(s)
Alkalosis , Blood Gas Analysis , Hypercalcemia , Humans , Hypercalcemia/diagnosis , Hypercalcemia/etiology , Female , Alkalosis/etiology , Alkalosis/diagnosis , Alkalosis/chemically induced , Blood Gas Analysis/methods , Calcium Carbonate/adverse effects , Dietary Supplements/adverse effects , Syndrome , Middle Aged
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