scholarly journals A Modified in vitro Clot Lysis Assay Predicts Outcomes in Non-traumatic Intracerebral Hemorrhage Stroke Patients—The IRONHEART Study

2021 ◽  
Vol 12 ◽  
Author(s):  
Rita Orbán-Kálmándi ◽  
Tamás Árokszállási ◽  
István Fekete ◽  
Klára Fekete ◽  
Máté Héja ◽  
...  

Background: Non-traumatic intracerebral hemorrhage (ICH) accounts for 10–15% of all strokes and results in a higher rate of mortality as compared to ischemic strokes. In the IRONHEART study, we aimed to find out whether a modified in vitro clot lysis assay method, that includes the effect of neutrophil extracellular traps (NETs) might predict ICH outcomes.Patients and Methods: In this prospective, observational study, 89 consecutive non-traumatic ICH patients were enrolled. Exclusion criteria included aneurysm rupture, cancer, liver- or kidney failure or hemorrhagic diathesis. On admission, detailed clinical and laboratory investigations were performed. ICH volume was estimated based on CT performed on admission, day 14 and 90. A conventional in vitro clot lysis assay (CLA) and a modified CLA (mCLA) including cell-free-DNA and histones were performed from stored platelet-free plasma taken on admission. Clot formation and lysis in case of both assays were defined using the following variables calculated from the turbidimetric curves: maximum absorbance, time to maximum absorbance, clot lysis times (CLT) and area under the curve (CLA AUC). Long-term ICH outcomes were defined 90 days post-event by the modified Rankin Scale (mRS). All patients or relatives provided written informed consent.Results: Patients with more severe stroke (NIHSS>10) presented significantly shorter clot lysis times of the mCLA in the presence of DNA and histone as compared to patients with milder stroke [10%CLT: NIHSS 0–10: median 31.5 (IQR: 21.0–40.0) min vs. NIHSS>10: 24 (18–31.0) min, p = 0.032]. Shorter clot lysis times of the mCLA showed significant association with non-survival by day 14 and with unfavorable long-term outcomes [mRS 0–1: 36.0 (22.5.0–51.0) min; mRS 2–5: 23.5 (18.0–36.0) min and mRS 6: 22.5 (18.0–30.5) min, p = 0.027]. Estimated ICH volume showed significant negative correlation with mCLA parameters, including 10%CLT (r = −0.3050, p = 0.009). ROC analysis proved good diagnostic performance of mCLA for predicting poor long-term outcomes [AUC: 0.73 (0.57–0.89)]. In a Kaplan-Meier survival analysis, those patients who presented with an mCLA 10%CLT result of >38.5 min on admission showed significantly better survival as compared to those with shorter clot lysis results (p=0.010).Conclusion: Parameters of mCLA correlate with ICH bleeding volume and might be useful to predict ICH outcomes.

Stroke ◽  
2017 ◽  
Vol 48 (suppl_1) ◽  
Author(s):  
Farhaan Vahidy ◽  
Liang Zhu ◽  
Nancy J Edwards

Introduction: The American Heart Association’s updated guidelines for management of patients with primary intracerebral hemorrhage (ICH) recommend monitoring and early care at centers with advanced nursing and neuro-critical care expertise. This entails frequent transfer of ICH patients to certified Comprehensive Stroke Centers (CSC) for higher level of care. We hypothesized that transferred patients (TP) to a CSC will differ from directly admitted patients (DAP) in terms of patient characteristics, treatment factors, and functional and quality of life (QOL) outcomes. Methods: We analyzed data from a prospectively collected ICH registry at our CSC. Patients with traumatic or secondary causes of ICH were excluded. We collected data on demographics, comorbidities, presentation lab values, clinical characteristics, radiological parameters, in-hospital treatment variables, and discharge and long term outcomes. Functional outcomes were captured as modified Rankin Scale (mRS) and EuroQol 5D (EQ-5D) was used to assess QOL indices. Results: Out of a total 192 primary ICH patients, 114 (59.4%) were transferred-in. TP were significantly older, had lower diastolic blood pressure, lower arrival National Institutes of Health Stroke Scale (NIHSS) score, and smaller hematoma volumes as compared to DAP. A higher proportion of TP had a good discharge functional outcome (mRS score 0 - 3) as compared to DAP (29.8% vs. 15.4%, p = 0.02), this trend was also observed for Day-90 mRS (34.2% vs. 24.4%, p = 0.09). TP also reported significantly better QOL indices at Day-90; EQ-5D total median (Q1, Q3) score [10 (6,16) vs. 15 (9.5,18), p = 0.02] and self-reported median (Q1,Q3) score [75 (50,88) vs. 62.5(40,70)], p < 0.01]. Day-90 data are complete for approximately 50% patients. After adjusting for initial stroke severity, the discharge mRS was however not significantly different between TP and DAP. Conclusions: A larger proportion of ICH patients were transferred-in. Our data suggest that TP have lower disease severity, and better discharge and long term outcomes. However, they had similar treatment intensity as DAP at the CSC. We continue to capture day-90, 6 and 12-month functional and QOL data, which will be presented.


2019 ◽  
Vol 112 (4) ◽  
pp. 691-699 ◽  
Author(s):  
Eun Jeong Yu ◽  
Tae Ki Yoon ◽  
Woo Sik Lee ◽  
Eun A. Park ◽  
Jin Young Heo ◽  
...  
Keyword(s):  

2019 ◽  
Vol 1718 ◽  
pp. 91-102 ◽  
Author(s):  
Zhiyong Yang ◽  
Sisi Dong ◽  
Qiuyue Zheng ◽  
Lingling Zhang ◽  
Xinmei Tan ◽  
...  

2019 ◽  
Vol 37 (2) ◽  
pp. 135-144 ◽  
Author(s):  
Masahiro Sasahara ◽  
Mitsuro Kanda ◽  
Seiji Ito ◽  
Yoshinari Mochizuki ◽  
Hitoshi Teramoto ◽  
...  

Background/Aims: Identification of nutritional indicators to predict short-term and long-term outcomes is necessary to provide appropriate treatment to patients with gastric cancer. Methods: We designed an analysis of a multicenter dataset of patients with gastric cancer who underwent gastrectomy between 2010 and 2014. We enrolled 842 eligible patients who had stage II/III gastric cancer. The area under the curve (AUC) values were compared among prognostic nutritional index (PNI), calculated as 10 × albumin g/dL + 0.005 × total lymphocyte count/mm3, and its constituents, and the predictive value of preoperative PNI for postoperative short-term and long-term outcomes was evaluated. Results: Preoperative PNI exhibited higher AUC values (0.719) for 1-year survival than its constituents, and the optimal cutoff value was 47. The disease-free and overall survival of patients in the PNI-low group were significantly shorter compared with those in the PNI-high group. The prognostic difference between the PNI-high and PNI-low groups was significantly greater in the subgroup of patients who underwent total gastrectomy. Clinically relevant postoperative complications were more frequently observed in the PNI-low group. Conclusions: The preoperative PNI is a useful predictor reflecting the incidence of complications after gastrectomy and the prognosis of patients with stage II/III gastric cancer.


Stroke ◽  
2020 ◽  
Vol 51 (Suppl_1) ◽  
Author(s):  
Michael E Reznik ◽  
Scott Moody ◽  
Brian Mac Grory ◽  
Christoph Stretz ◽  
Tracy E Madsen ◽  
...  

Background: Delays in medical care are known to be associated with worse outcomes in ischemic stroke, but outcomes in patients with intracerebral hemorrhage (ICH) and delayed presentation are unclear. We aimed to determine factors associated with prolonged delays from ICH symptom onset to hospital presentation and implications for long-term outcomes. Methods: We performed a single-center cohort study using data from consecutive ICH patients over 12 months. ICH characteristics and outcomes were prospectively collected, while time of symptom onset (or last-known-well) and emergency department arrival were retrospectively abstracted. We calculated time-to-arrival and defined prolonged delay as >24 hours. Using multivariable logistic regression, we determined factors associated with prolonged delays to presentation, then determined associations with unfavorable 3-month outcomes (modified Rankin Scale [mRS] 4-6) after adjusting for demographics and ICH severity. Results: Of 299 patients with out-of-hospital ICH, 21% (n=62) presented >24 hours from symptom onset; median time-to-arrival was 5.5 hours (IQR 1.2-17.8). There were not significant differences in age (mean 71.9±14.0 vs. 70.4±16.0, p=0.50), sex (48% vs. 50% male, p=0.80), race (89% vs. 82% white, p=0.22), or ICH size (mean 15.5±23.2 vs. 20.5±27.4cc, p=0.19) between patients presenting >24 hours and <24 hours from symptom onset, though patients with prolonged delays were less likely to have initial GCS <13 (16% vs. 34%, p=0.02) and therefore had modestly lower ICH scores (median 1 [0-2] vs. 1 [1-2], p=0.02). Patients with prolonged delays had lower 3-month mRS scores than patients who presented earlier (median 3 [1.5-4] vs. 4 [3-6], p=0.002), and lower odds of unfavorable 3-month outcome in adjusted models (OR 0.46, 95% CI 0.22-0.97). Conclusions: Outcomes in ICH patients with prolonged delays to presentation differ from those who present earlier. ICH severity in such patients may not be accurately captured by established predictors, and prognostication models should therefore account for inherent survivorship bias.


2018 ◽  
Vol 72 (1) ◽  
pp. 58-65 ◽  
Author(s):  
Stéphanie Roullet ◽  
Sylvie Labrouche ◽  
Christine Mouton ◽  
Alice Quinart ◽  
Karine Nouette-Gaulain ◽  
...  

AimsDiagnosis of hyperfibrinolysis in orthotopic liver transplantation (OLT) remains challenging. Euglobulin clot lysis time (ECLT) is not adapted to clinical situations. ROTEM is specific but seldom sensitive to hyperfibrinolysis. The Lysis Timer assesses ‘Global Fibrinolytic Capacity’ in citrated plasma (GFC/LT). GFC/LT associates reagents for in vitro triggering of the clot (thrombin and calcium) and its lysis (tissue-plasminogenactivator (t-PA)), turbidity signal acquisition by the Lysis Timer, and dedicated software converting the digital signal into an optical curve. A visual check of the curves was systematic to ascertain the lysis time values calculated by the software. The primary aim of this prospective observational study was to evaluate the ability of GFC/LT to recognise hyperfibrinolysis during OLT. The secondary aim was to compare its results with ROTEM maximum lysis (EXTEM ML) and with standard laboratory tests.MethodsThirty consecutive adult patients undergoing OLT were included (NCT03012633). Standard laboratory tests, ROTEM, GFC/LT, ECLT and fibrinolysis parameters were assayed at five sample times.ResultsGFC/LT was correlated with ECLT, plasmin activator inhibitor 1 antigen and activity and t-PA activity (r=0.490, 0.681, 0.643 and –0.359, respectively). Hyperfibrinolysis was defined as ECLT ≤60 min. Receiver operating characteristic curve analysis showed that GFC/LT with a threshold of 31 min detected hyperfibrinolysis with a sensitivity of 0.88 (95% CI 0.73 to 0.96), a specificity of 0.68 (95% CI 0.56 to 0.78) and an area under the curve (AUC) of 0.85 (95% CI 0.74 to 0.94). EXTEM ML >12% did not detect hyperfibrinolysis (sensitivity 0.38 (95% CI 0.24 to 0.55), specificity 0.95 (95% CI 0.86 to 0.99) and AUC 0.60 (95% CI 0.46 to 0.75)).ConclusionsGFC/LT recognised hyperfibrinolysis during OLT with a significant agreement with the other tests of fibrinolysis.Trial registration numberNCT03012633.


2019 ◽  
Vol 7 (1) ◽  
pp. e636 ◽  
Author(s):  
James M. Stankiewicz ◽  
Howard L. Weiner

Two different treatment paradigms are most often used in multiple sclerosis (MS). An escalation or induction approach is considered when treating a patient early in the disease course. An escalator prioritizes safety, whereas an inducer would favor efficacy. Our understanding of MS pathophysiology has evolved with novel in vivo and in vitro observations. The treatment landscape has also shifted significantly with the approval of over 10 new medications over the past decade alone. Here, we re-examine the treatment approach in light of these recent developments. We believe that recent work suggests that early prediction of the disease course is fraught, the amount of damage to the brain that MS causes is underappreciated, and its impact on patient function oftentimes is underestimated. These concerns, coupled with the recent availability of agents that allow a better therapeutic effect without compromising safety, lead us to believe that initiating higher efficacy treatments early is the best way to achieve the best possible long-term outcomes for people with MS.


2021 ◽  
pp. svn-2020-000656
Author(s):  
Ronda Lun ◽  
Vignan Yogendrakumar ◽  
Tim Ramsay ◽  
Michel Shamy ◽  
Robert Fahed ◽  
...  

ObjectiveThe concept of the ‘self-fulfilling prophecy’ is well established in intracerebral haemorrhage (ICH). The ability to improve prognostication and prediction of long-term outcomes during the first days of hospitalisation is important in guiding conversations around goals of care. We previously demonstrated that incorporating delayed imaging into various prognostication scores for ICH improves the predictive accuracy of 90-day mortality. However, delayed prognostication scores have not been used to predict long-term functional outcomes beyond 90 days.Design, setting and participantsWe analysed data from the ICH Deferoxamine trial to see if delaying the use of prognostication scores to 96 hours after ICH onset will improve performance to predict outcomes at 180 days. 276 patients were included.Interventions and measurementsWe calculated the original ICH score (oICH), modified-ICH score (MICH), max-ICH score and the FUNC score on presentation (baseline), and on day 4 (delayed). Outcomes assessed were mortality and poor functional outcome in survivors (defined as modified Rankin Scale of 4–5) at 180 days. We generated receiver operating characteristic curves, and measured the area under the curve values (AUC) for mortality and functional outcome. We compared baseline and delayed AUCs with non-parametric methods.ResultsAt 180 days, 21 of 276 (7.6%) died. Out of the survivors, 54 of 255 had poor functional outcome (21.2%). The oICH, MICH and max-ICH performed significantly better at predicting 180-day mortality when calculated 4 days later compared with their baseline equivalents ((0.74 vs 0.83, p=0.005), (0.73 vs 0.80, p=0.036), (0.74 vs 0.83, p=0.008), respectively). The delayed calculation of these scores did not significantly improve our accuracy for predicting poor functional outcomes.ConclusionDelaying the calculation of prognostication scores in acute ICH until day 4 improved prediction of 6-month mortality but not functional outcomes.Trial registration numberClinicalTrials.gov Registry (NCT02175225).


Author(s):  
Khalid Al-Hathlol ◽  
Omar Majed Al-Obaid ◽  
Thekra Solaiman Al-Gholaiqa ◽  
Bishayer Al-Hathlol ◽  
Abdullah Eid Abdulaal ◽  
...  

Stroke ◽  
2021 ◽  
Vol 52 (Suppl_1) ◽  
Author(s):  
Roshini Kalagara ◽  
Nelson F Lin ◽  
Carlin C Chuck ◽  
Savannah R Doelfel ◽  
Helen Zhou ◽  
...  

Background: Socioeconomic status (SES) has been associated with intracerebral hemorrhage (ICH) incidence, but its impact on ICH-related features and outcomes is unclear. Methods: We performed a single-center cohort study on consecutive ICH patients admitted over 2 years. Demographics, ICH characteristics, and outcomes were prospectively collected, while SES-related data were retrospectively abstracted. We classified SES quartiles using census estimates of median household incomes corresponding to patients’ home ZIP codes, then categorized patients as “lower SES” if their ZIP code was in the lowest SES quartile, if they were uninsured, or had Medicaid as their source of insurance. We compared ICH characteristics between patients with lower vs. higher SES, then determined associations between lower SES and unfavorable 3-month outcome (modified Rankin Scale 4-6) using multivariable logistic regression. Results: Of 665 patients, 31% (n=207) were categorized as lower SES. Patients with lower SES were significantly younger (mean [SD] 64.7 [16.1] vs. 73.1 [14.2] years, p<0.001), more often non-white (38% vs. 8%, p<0.001), and had a higher prevalence of multiple vascular risk factors. There were no significant differences in ICH volume or prevalence of infratentorial or intraventricular hemorrhage. However, patients with lower SES had a shorter time-to-presentation (median [IQR] 4.5 [1.3-15.2] vs. 7.4 [1.4-21.7]), hours from last known well, p=0.01), and had fewer ICH due to cerebral amyloid angiopathy (13% vs. 30%, p<0.001). Despite these differences, patients with lower SES did not have a significantly higher likelihood of unfavorable 3-month outcomes (OR 1.2 [95% CI 0.7-1.8]). Conclusions: Differences in ICH features may be driven by pre-morbid healthcare disparities in lower SES patients. Although their younger age and shorter time to presentation may have mitigated the deleterious effects of comorbidities on long-term outcomes, these factors may also belie a greater loss of quality-adjusted life years from ICH-related disability.


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