Switching to centrifugal pumps may decrease hemolysis rates among pediatric ECMO patients

Recent advances in ECLS technology have led to the adoption of centrifugal pumps for the majority of patients worldwide. Despite several advantages of centrifugal pumps, they remain controversial because a number of studies have shown increased rates of hemolysis. The aim of this study was to assess the impact of transitioning from roller to centrifugal pumps on hemolysis rates at our center. A retrospective analysis of all pediatric ECMO patients at a single center between 2005 and 2017 was undertaken. Hemolysis was defined as a plasma free hemoglobin >50 mg/dL. Multivariable logistic regression was performed correcting for several factors to determine risk factors for hemolysis and analyze outcomes among patients with hemolysis. Significant findings were those with p < 0.05. A total of 590 patients were identified during the study period. Multivariable logistic regression for risk factors for hemolysis showed roller pumps (OR 1.92, CI 1.11–3.33) and ECMO duration (OR 1.002 per hour, CI 1.00–1.01) to be significant factors. Rates of hemolysis significantly improved following conversion from roller to centrifugal pumps, with significantly lower rates of hemolysis in 2012, 2015, 2016, and 2017 when compared to the historical average with roller pumps from 2005 to 2009 (34.7%). Additionally, hemolysis was associated with an increased risk of death (OR 3.59, CI 2.05–6.29) when correcting for other factors. These data suggest decreasing rates of hemolysis with centrifugal pumps compared to roller pumps. Since hemolysis was also associated with increased risk of death, these data support the switch from roller to centrifugal pumps at ECMO centers.

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Characteristics and Outcomes of COVID-19 Patients with Mature B-Cell Non-Hodgkin Lymphomas (mB-Cell NHL): A US Nationwide Electronic Health Record (EHR) Database Study

Blood ◽

10.1182/blood-2021-145042 ◽

2021 ◽

Vol 138 (Supplement 1) ◽

pp. 2418-2418

Author(s):

Xiaomeng Yue ◽

David Hallett ◽

Yangyang Liu ◽

Reethi Iyengar ◽

Elisa Basa ◽

...

Keyword(s):

Risk Factors ◽

Logistic Regression ◽

B Cell ◽

Clinical Characteristics ◽

Index Date ◽

B Cell Lymphoma ◽

Male Gender ◽

Older Age ◽

Multivariable Logistic Regression ◽

The Impact

Abstract Introduction COVID-19 poses a serious concern for mB-cell NHL patients given their advanced age, high burden of comorbidities, and immune dysfunction. Limited by smaller sample sizes during the early period of the COVID-19 pandemic, previous studies were unable to thoroughly evaluate the impact of COVID-19 on patients with mB-cell NHL 1,2. We aim to describe demographics and clinical characteristics, outcomes, and risk factors associated with death and other severe outcomes among COVID-19 patients with mB-cell NHL in a large US nationwide database. Methods This retrospective cohort study was conducted using the Optum EHR database, comprising data from an integrated network of ambulatory and hospital care providers across the US. Patients with COVID-19 (diagnosis code of U07.1, U07.2, or a positive result of SARS-Cov-2 virus PCR or antigen tests) between Feb. 1, 2020 and Jan 7, 2021 (index date) and mB-cell NHL diagnosis prior to the COVID-19 diagnosis were included. Patients were excluded if they were under 18 years of age, had missing age or sex, or had <1year continuous eligibility prior to their index date (pre-index period). All baseline characteristics, including demographics and comorbidities, were determined during the one-year pre-index period. Severe outcomes, including death, hospitalization, ICU admission, and acute respiratory insufficiency (ARI), were evaluated within 30 days post-index date. Multivariable logistic regression was conducted to identify variables independently associated with severe outcomes. Results Among 2,767 patients with mB-cell NHL who were infected with SARS-CoV-2 between Feb. 1, 2020 and Jan. 7, 2021 (mean age±SD: 67.9 years±14.7, 53.9% male), majority were white (73.9%), followed by African American (10.9%), Hispanic (6.9%), and Asian (1.2%). The most common subtypes of mB-cell NHL were chronic lymphocytic leukemia/small lymphocytic lymphoma (26.9%), multiple myeloma (22.4%), diffuse large B-cell lymphoma (13.2%), and follicular lymphoma (7.3%). Of these patients, 93.4% have at least one comorbidity. The most common comorbidities were hypertension (58.5%), neurological disease (49.4%), diabetes (28.2%), ischemic heart disease (25.5%), cardiac arrhythmia/conduction disorders (24.4%), chronic kidney disease (CKD, 19.2%), heart failure/cardiomyopathy (18.1%), and COPD (12.3%). Overall, 960 patients (34.7%) developed severe outcomes, among which, 847 patients (30.6%) were hospitalized, 214 patients (7.7%) were admitted to the ICU, 201 patients (7.3%) experienced ARI, and 220 patients (8.0%) died. Multivariable logistic regression showed that increased odds of severe outcomes were independently associated with older age (85+ years vs. <65 years; adjusted odds ratio [OR], 2.0; 95% CI, 1.4-2.7), male gender (OR, 1.4; 95% CI, 1.1-1.6), insurance coverage with Medicaid (OR, 1.8; 95% CI, 1.1-2.9) and/or Medicare (vs. commercial only; OR, 1.9; 95% CI, 1.5-2.5), infected during the first quarter (OR, 5.6; 95% CI, 3.4-9.4) or second quarter of 2020 (vs. fourth quarter of 2020; OR, 1.7; 95% CI, 1.4-2.1), having CKD (OR, 1.3; 95% CI, 1.0-1.6), COPD (OR, 1.4; 95% CI, 1.0-1.8), diabetes (OR, 1.3; 95% CI, 1.1-1.6), and receiving active treatment for NHL (OR, 1.4; 95% CI, 1.0-2.0) within 30 days prior to COVID-19 diagnosis (Figure). Conclusions This study demonstrated key demographic and clinical characteristics associated with severe outcomes among COVID-19 patients with mB-cell NHL using one of the largest nationwide databases. Risk factors for severe outcomes identified in the general population, such as older age, male gender, and having certain underlying medical conditions were also identified in this study. In addition, COVID-19 infection occurring earlier in the pandemic and receiving active NHL treatments were associated with severe outcomes. These latter two observations might reflect the improvement in patient management during the latter period of the pandemic and that active mB-cell NHL disease and treatment rendered an increased risk of severe outcomes in COVID-19 patients with mB-cell NHL. These insights highlight the importance of utilizing demographic, clinical and treatment information to estimate the risk for severe outcomes, whereas prospective studies focusing on optimal COVID-19 management are required to identify specific actions that can be taken to improve outcomes of COVID-19 in patients with mB-cell NHL. Figure 1 Figure 1. Disclosures Yue: Joule: Current Employment. Hallett: AbbVie: Current Employment. Liu: AbbVie: Current Employment. Iyengar: AbbVie: Current Employment. Basa: AbbVie: Current Employment. Yang: AbbVie: Current Employment.

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MO375EPIDEMIOLOGY AND PREDICTORS OF CARDIAC BYPASS ASSOCIATED AKI IN A MIDDLE-INCOME CARIBBEAN COUNTRY

Nephrology Dialysis Transplantation ◽

10.1093/ndt/gfab082.0029 ◽

2021 ◽

Vol 36 (Supplement_1) ◽

Author(s):

Lori-Ann Fisher ◽

Sunil Stephenson ◽

Marshall Tulloch-Reid ◽

Simon Anderson

Keyword(s):

Risk Factors ◽

Logistic Regression ◽

Fold Increase ◽

University Hospital ◽

Small Island ◽

Multivariable Logistic Regression Model ◽

Middle Income ◽

Neutrophil Lymphocyte Ratio ◽

Multivariable Logistic Regression ◽

Increased Risk

Abstract Background and Aims AKI is a common and resource intensive complication of cardiopulmonary bypass surgery (CPB) in high income-countries occurring in up to one third of surgeries performed. However, little is known of its incidence and impact in the small island developing states of the Caribbean. We describe the incidence, risk factors and outcomes of AKI following CPB at a referral cardiac centre in Jamaica. Method A review of the Medical Records of adult patients (aged ≥ 18 years) with no prior ESRD or dialysis requirement undergoing CPB at the University Hospital of the West Indies, Mona between January 1, 2016 to June 30, 2019 inclusive was undertaken. Demographics, pre-operative status, intraoperative and post-operative data were abstracted. The primary outcome was all-cause 30-day mortality. AKI was defined as meeting the KDIGO criteria based on the peak serum creatinine measurement obtained within 72 hours post-operatively. Multivariable logistic regression was used to examine the risk factors for and impact of AKI on all-cause mortality. Results Of the 259 persons who underwent CPB in the study period, 211 (58% men, mean age 58.1±12.9 years, median± IQR Euro-score II of 1.4 ± 1.4) met inclusion criteria. AKI occurred in 37.3 % (80) of patients with 43.8% (35) KDIGO I, 32.5% (26) KDIGO II and (19) 23.7% KDIGO III. Renal replacement therapy was required in 3.2% (7) of patients. In a multivariable logistic regression model, baseline CKD (eGFR<60mL/min/1.732m2; odds ratio, 95%CI: 5.32,1.72-15.90), Prolonged bypass time (1.73,1.21-2.48; per hour), intraoperative PRBC transfusion (2.33,1.08-5.03) and elevated 24-hour post-operative Neutrophil/Lymphocyte ratio>18 (3.00, 1.07-8.35) were associated with an increased risk of AKI. AKI after CPB resulted in greater hospital (23.6 versus 14.6 days, p<0.001) and ICU stay (8.1 versus 3.3 days, p<0.001) and a 6-fold increase in 30-day mortality after adjusting for age and sex (HR, 95 CI: 6.40, 2.38-17.25). (see Figure 1 Kaplan Meier survival estimates for AKI) Conclusion The occurrence of AKI following CPB is comparable to that reported in the literature and is associated with poor short-term outcomes. Larger multicentre prospective studies to predict risk, identify interventions to reduce mortality and assess long term complications of AKI following CPB in Caribbean countries are needed.

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Diabetes, even newly defined by HbA1c testing, is associated with an increased risk of in-hospital death in adults with COVID-19

10.21203/rs.3.rs-93792/v1 ◽

2020 ◽

Author(s):

Ye Liu ◽

Ran Lu ◽

Junhong Wang ◽

Qin Cheng ◽

Ruitao Zhang ◽

...

Keyword(s):

Risk Factors ◽

Mortality Rate ◽

Survival Probability ◽

Cox Regression ◽

Undiagnosed Diabetes ◽

Hospital Death ◽

Diabetes Group ◽

Risk Of Death ◽

Increased Risk ◽

The Impact

Abstract Aims: Diabetes is associated with poor coronavirus disease 2019 (COVID-19) outcomes. However, little is known on the impact of undiagnosed diabetes in the COVID-19 population. We investigated whether diabetes, particularly undiagnosed diabetes, was associated with an increased risk of death from COVID-19.Methods: This retrospective study identified adult patients with COVID-19 admitted to Tongji Hospital (Wuhan) from January 28 to April 4, 2020. Diabetes was determined using patients’ past history (diagnosed) or was newly defined if the hemoglobin A1c (HbA1c) level at admission was 6.5% (≥ 48 mmol/mol) (undiagnosed). The in-hospital mortality rate and survival probability were compared between the non-diabetes and diabetes (overall, diagnosed, and undiagnosed diabetes) groups. Risk factors of mortality were explored using Cox regression analysis. Results: Of 373 patients, 233 were included in the final analysis, among whom 80 (34.3%) had diabetes: 44 (55.0%) reported a diabetes history, and 36 (45.0%) were newly defined as having undiagnosed diabetes by HbA1c testing at admission. Compared with the non-diabetes group, the overall diabetes group had a significantly increased mortality rate (22.5% vs 5.9%, p <0.001). Moreover, the overall, diagnosed, and undiagnosed diabetes groups displayed lower survival probability in the Kaplan-Meier survival analysis (all p <0.01). Using multivariate Cox regression, diabetes, age, quick sequential organ failure assessment score, and D-dimer ≥ 1.0 mg/mL were identified as independent risk factors for in-hospital death in patients with COVID-19.Conclusions: The prevalence of undiagnosed pre-existing diabetes among patients with COVID-19 is high in China. Diabetes, even newly defined by HbA1c testing at admission, is associated with increased mortality in patients with COVID-19. Screening for undiagnosed diabetes by HbA1c measurement should be considered in adult Chinese inpatients with COVID-19.

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Clinical Characteristics and Outcomes of Splenic Infarction in Cancer Patients - a Retrospective, Single Center Report of 206 Cases

Blood ◽

10.1182/blood-2020-136646 ◽

2020 ◽

Vol 136 (Supplement 1) ◽

pp. 22-23

Author(s):

Jan Philipp Bewersdorf ◽

Nishita Parmar ◽

Scott Gettinger ◽

Gary Israel ◽

Alfred Ian Lee

Keyword(s):

Atrial Fibrillation ◽

Logistic Regression ◽

Cancer Patients ◽

Bivariate Analysis ◽

Single Center ◽

Risk Of Recurrence ◽

Vein Thrombosis ◽

Multivariable Logistic Regression ◽

Significant Difference ◽

The Impact

Introduction:Splenic infarct (SI) is caused by thromboembolic events or other local or systemic factors leading to insufficient splenic blood supply. One of the most common causes of SI is an underlying malignancy, which has been associated with nontraumatic SI in up to a third of cases. The incidence, underlying etiology, optimal treatment, and prognostic relevance of SI in cancer patients (pts) are poorly characterized with data limited to a few, retrospective, single center case series. Methods:We conducted a retrospective analysis of all radiologically-confirmed cases of SI in pts with any history of malignancy treated at Yale-New Haven Hospital during 2008-2017 to describe the incidence, treatment, and risk of recurrence of SI in cancer pts. Pediatric pts and cases of traumatic SI were excluded. Electronic medical records of eligible pts were reviewed and demographic, clinical, imaging and treatment characteristics as well as SI recurrence documented. Categorical and continuous variables among pts with and without recurrence of SI were compared using Pearson's χ2 test or Fisher's exact test and t-test with unequal variances, respectively. Multivariable logistic regression models that included variables associated with a higher risk of SI recurrence at a p-value of <0.2 in bivariate analysis were conducted to evaluate the impact of those variables on SI recurrence. Results:206 pts were included in the analysis with baseline characteristics shown inTable 1.Thirty-four pts (16.5%) had a prior venous thromboembolic event (VTE), while 40 pts (19.5%) had been on anticoagulation (AC) for other indications at the time of SI. Diagnosis of SI was often made incidentally on CT or MRI during routine cancer surveillance (44.2%; n = 91) or initial cancer staging (5.8%; n = 12). Splenomegaly was present in 33% of cases (n = 68) with 90.8% of pts (n = 188) having an unremarkable splenic vasculature. Abnormalities in the splenic vasculature included splenic artery/vein thrombosis (2.9%; n = 6) or occlusion (1.5%; n = 3), external compression by local tumor (1.5%; n = 3), direct tumor invasion into the splenic vasculature (2.9%; n = 6), and portal vein thrombosis (4.9%; n = 10). Following a diagnosis of SI, 22 pts (10.7%) were newly started on therapeutic AC and 36 pts (17.5%) continued on previously prescribed AC. Compared to those who were not anticoagulated, pts who were started or continued on AC after their diagnosis of SI were statistically more likely to have atrial fibrillation/flutter (29.3% vs. 12.2%; p = 0.003) or to have had a prior VTE (46.6% vs. 4.7%; p < 0.001). Pts newly started on AC following SI were more likely to have had a prior VTE (27.2% vs. 4.7%; p < 0.001) compared to pts who did not receive AC without a statistically significant difference in the rates of atrial fibrillation/flutter (22.7% vs. 12.2%; p = 0.186). Five of the 22 pts (22.7%) initiated on and five of the 36 pts (13.9%) continued on AC developed a subsequent VTE, respectively. There was no statistically significant difference in the risk of subsequent VTE among pts who continued or initiated AC compared to pts who did not receive AC (17.2% [10 out of 58 pts] vs. 12.8% [19 out of 148 pts]; p = 0.414). Follow-up imaging was available for 152 of the 206 pts (73.8%). A recurrent or enlarging SI was detected in 6 pts (4.0%) at a median of 35 days following initial SI (range: 8-734 days). Anticoagulation was not associated with a reduction in the risk of subsequent SI. In bivariate analysis none of the baseline patient, treatment, or imaging characteristics were statistically significantly associated with a higher chance of SI recurrence, although prior and subsequent VTE (p = 0.063) and atrial fibrillation/flutter (p = 0.076) showed trends towards statistical significance (Table 2). In a multivariable logistic regression model, no variables were identified that were associated with a higher risk of SI recurrence. Conclusion:In this large retrospective study of 206 cancer pts with SI, we showed that SI in this patient population are often an incidental finding with low risk of recurrence that is not impacted by AC. SI recurrence in cancer pts has a nonsignificant association with atrial fibrillation and prior VTE and therefore might arise as a cardioembolic event or as part of the underlying hypercoagulable state of malignancy. Additional prospective studies are needed to evaluate the risk and benefits of AC in this setting. Disclosures No relevant conflicts of interest to declare.

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Factors Predictive of Postoperative Acute Respiratory Failure Following Inpatient Sinus Surgery

Annals of Otology Rhinology & Laryngology ◽

10.1177/0003489418775129 ◽

2018 ◽

Vol 127 (7) ◽

pp. 429-438 ◽

Cited By ~ 1

Author(s):

Brittany N. Burton ◽

Sapideh Gilani ◽

Matthew W. Swisher ◽

Richard D. Urman ◽

Ulrich H. Schmidt ◽

...

Keyword(s):

Risk Factors ◽

Logistic Regression ◽

Respiratory Failure ◽

Acute Respiratory Failure ◽

Fungal Infections ◽

Sinus Surgery ◽

Multivariable Logistic Regression Analysis ◽

Multivariable Logistic Regression ◽

Nationwide Inpatient Sample Database ◽

The Impact

Objective: The impact of perioperative risk factors on outcomes following outpatient sinus surgery is well defined; however, risk factors and outcomes following inpatient surgery remain poorly understood. We aimed to define risk factors of postoperative acute respiratory failure following inpatient sinus surgery. Methods: Utilizing data from the Nationwide Inpatient Sample Database from the years 2010 to 2014, we identified patients (≥18 years of age) with an Internal Classification of Disease, Ninth Revision, Clinical Modification (ICD-9-CM) procedure code of sinus surgery. We used multivariable logistic regression to identify risk factors of postoperative acute respiratory failure. Results: We identified 4919 patients with a median age of 53 years. The rate of inpatient postoperative acute respiratory failure was 3.35%. Chronic sinusitis (57.7%) was the most common discharge diagnosis. The final multivariable logistic regression analysis suggested that pneumonia, bleeding disorder, alcohol dependence, nutritional deficiency, heart failure, paranasal fungal infections, and chronic kidney disease were associated with increased odds of acute respiratory failure (all P < .05). Conclusion: To our knowledge, this represents the first study to evaluate potential risk factors of acute respiratory failure following inpatient sinus surgery. Knowledge of these risk factors may be used for risk stratification.

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Incidence, Risk Factors, and Outcomes of Stroke Following Cardiac Transplantation

Stroke ◽

10.1161/strokeaha.121.034874 ◽

2021 ◽

Author(s):

Hilmi Alnsasra ◽

Rabea Asleh ◽

Neeraj Kumar ◽

Camden Lopez ◽

Takumi Toya ◽

...

Keyword(s):

Risk Factors ◽

Hemorrhagic Stroke ◽

Calcineurin Inhibitor ◽

Stroke Risk ◽

Single Institution ◽

Risk Of Death ◽

Increased Risk ◽

Incidence Risk ◽

The Impact ◽

Ischemic Events

Background and Purpose: Less is known about the risk factors and outcomes associated with stroke in the current era of increasing heart transplantation (HT) being performed in older patients. The impact of immunosuppression on risk of stroke has not yet been previously studied. We aimed to determine the incidence, risk factors and outcomes of stroke after HT. Methods: We retrospectively analyzed the incidence of ischemic and hemorrhagic strokes and associated outcomes in all consecutive HT recipients transplanted between 1994 and 2016 at a single institution. Results: Of 529 patients who underwent HT, 57 (10.7%) developed stroke, 8.1% had an ischemic events and (2.6%) had a hemorrhagic stroke. Age at HT (adjusted hazard ratio [HR] 1.33; P =0.03) and diabetes (HR, 2.60; P =0.02) were associated with increased risk of ischemic events. Patients with stroke (any type) were more likely to have worse kidney function (HR, 1.81; P =0.02) whereas patients with ischemic events were more likely to undergo combined organ transplantation (HR, 2.01; P =0.05). Cytomegalovirus infection was found to be associated with increased risk of any stroke (HR, 2.09; P =0.02).Conversion from calcineurin inhibitor to sirolimus-based immunosuppression was not found to be associated with a significant change in stroke risk (HR, 1.39; P =0. 45) compared with calcineurin inhibitor maintenance therapy. Stroke of any type and ischemic events were independently associated with increased risk of death (HR, 1.90; P =0.001 and HR, 2.14; P <0.001, respectively). Conclusions: Stroke after HT is associated with increased mortality. Older age at HT, diabetes, renal dysfunction, and CMV infection were associated with greater risk of stroke.

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The presurgical controlling nutritional status (CONUT) score is independently associated with severe peristomal skin disorders: a single-center retrospective cohort study

Scientific Reports ◽

10.1038/s41598-021-98369-y ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Takuya Shiraishi ◽

Hiroomi Ogawa ◽

Chika Katayama ◽

Katsuya Osone ◽

Takuhisa Okada ◽

...

Keyword(s):

Risk Factors ◽

Logistic Regression ◽

Nutritional Status ◽

Multivariable Logistic Regression Analysis ◽

Skin Disorders ◽

Nutritional Interventions ◽

Multivariable Logistic Regression ◽

Peristomal Skin ◽

The Impact ◽

Conut Score

AbstractWhile nutritional interventions may potentially lower the risk of peristomal skin disorders (PSDs) and their exacerbation, no previous studies have evaluated the relationship between PSDs and nutritional status using the Controlling Nutritional Status (CONUT) score. The purpose of this study was to assess the impact of preoperative nutritional status on stoma health, and determine risk factors for postoperative PSDs, including severe PSDs. A retrospective analysis was performed of 116 consecutive patients with rectal cancer who underwent radical surgery with ileostomy or colostomy creation. PSDs were diagnosed in 32 patients (27.6%); including 10 cases (8.7%) that were defined as severe based on the ABCD-stoma score. Multivariable logistic regression showed that smoking (odds ratio [OR] 3.451, 95% confidence interval [CI] 1.240–9.607, p = 0.018) and ileostomy (OR 3.287, 95% CI 1.278–8.458, p = 0.014) were independent risk factors for PSDs. A separate multivariable logistic regression analysis of risk factors for severe PSDs, found that the only independent risk factor was the CONUT score (OR 10.040, 95% CI 1.191–84.651, p = 0.034). Severe PSDs are associated with preoperative nutritional disorders, as determined by the CONUT score. Furthermore, nutritional disorders may increase the severity of PSDs, regardless of the stoma type.

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Status epilepticus after intracranial neurosurgery: incidence and risk stratification by perioperative clinical features

Journal of Neurosurgery ◽

10.3171/2020.10.jns202895 ◽

2021 ◽

pp. 1-13

Author(s):

Michael C. Jin ◽

Jonathon J. Parker ◽

Michael Zhang ◽

Zack A. Medress ◽

Casey H. Halpern ◽

...

Keyword(s):

Risk Factors ◽

Logistic Regression ◽

Status Epilepticus ◽

Risk Stratification ◽

Proportional Hazards ◽

Cox Proportional Hazards ◽

Neurosurgical Procedures ◽

Cross Sectional ◽

Multivariable Logistic Regression ◽

Increased Risk

OBJECTIVE Status epilepticus (SE) is associated with significant mortality, cost, and risk of future seizures. In one of the first studies of SE after neurosurgery, the authors assess the incidence, risk factors, and outcome of postneurosurgical SE (PNSE). METHODS Neurosurgical admissions from the MarketScan Claims and Encounters database (2007 through 2015) were assessed in a longitudinal cross-sectional sample of privately insured patients who underwent qualifying cranial procedures in the US and were older than 18 years of age. The incidence of early (in-hospital) and late (postdischarge readmission) SE and associated mortality was assessed. Procedural, pathological, demographic, and anatomical covariates parameterized multivariable logistic regression and Cox models. Multivariable logistic regression and Cox proportional hazards models were used to study the incidence of early and late PNSE. A risk-stratification simulation was performed, combining individual predictors into singular risk estimates. RESULTS A total of 197,218 admissions (218,217 procedures) were identified. Early PNSE occurred during 637 (0.32%) of 197,218 admissions for cranial neurosurgical procedures. A total of 1045 (0.56%) cases of late PNSE were identified after 187,771 procedure admissions with nonhospice postdischarge follow-up. After correction for comorbidities, craniotomy for trauma, hematoma, or elevated intracranial pressure was associated with increased risk of early PNSE (adjusted OR [aOR] 1.538, 95% CI 1.183–1.999). Craniotomy for meningioma resection was associated with an increased risk of early PNSE compared with resection of metastases and parenchymal primary brain tumors (aOR 2.701, 95% CI 1.388–5.255). Craniotomies for infection or abscess (aHR 1.447, 95% CI 1.016–2.061) and CSF diversion (aHR 1.307, 95% CI 1.076–1.587) were associated with highest risk of late PNSE. Use of continuous electroencephalography in patients with early (p < 0.005) and late (p < 0.001) PNSE rose significantly over the study time period. The simulation regression model predicted that patients at high risk for early PNSE experienced a 1.10% event rate compared with those at low risk (0.07%). Similarly, patients predicted to be at highest risk for late PNSE were significantly more likely to eventually develop late PNSE than those at lowest risk (HR 54.16, 95% CI 24.99–104.80). CONCLUSIONS Occurrence of early and late PNSE was associated with discrete neurosurgical pathologies and increased mortality. These data provide a framework for prospective validation of clinical and perioperative risk factors and indicate patients for heightened diagnostic suspicion of PNSE.

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The Development Of Venous Thromboembolism May Increase The Risk Of Osteonecrosis In Children With Acute Lymphoblastic Leukemia

Blood ◽

10.1182/blood.v122.21.3864.3864 ◽

2013 ◽

Vol 122 (21) ◽

pp. 3864-3864

Author(s):

Badhiwala H. Jetan ◽

Trishana Nayiager ◽

Uma H. Athale

Keyword(s):

Risk Factors ◽

Logistic Regression ◽

Venous Thromboembolism ◽

Acute Lymphoblastic Leukemia ◽

Lymphoblastic Leukemia ◽

Older Age ◽

Regression Analyses ◽

Female Ratio ◽

Increased Risk ◽

The Impact

Abstract Background Osteonecrosis (ON) is a severely disabling complication of anti-leukemic therapy, specifically long-term corticosteroid use. A hypercoagulable state is thought to underlie corticosteroid-related ON. Children with acute lymphoblastic leukemia (ALL) are also at increased risk of venous thromboembolism (VTE), indicating underlying hypercoagulability in this disease entity. Hence, we explored the relationship between ON and VTE, along with the association of ON with other variables, including age and asparaginase (ASP) therapy, in children with ALL. Methods Health records of children (< 18 yrs.) with de novo ALL treated at McMaster Children’s Hospital from 1992 to 2010 were reviewed. Patients were treated according to Dana-Farber Cancer Institute (DFCI) ALL Consortium Protocols. Data regarding demographics, leukemia diagnosis and therapy, development and characteristics of ON and VTE, and thrombophilia work-up, if any, were collected from computer records and chart review. Osteonecrosis was diagnosed by plain X-ray, computed tomography (CT), magnetic resonance (MR) imaging, and/or technetium-99m (99mTc) bone scan. We included ON diagnosed during therapy and/or at any point during post-treatment follow-up. Standard radiological measures, including venous Doppler ultrasound and/or venography (conventional, CT, MR), confirmed VTE. We included only clinically significant thromboembolic events, defined as symptomatic VTE, or asymptomatic VTE requiring anticoagulation, developing during ALL therapy. Logistic regression analyses were performed to identify possible predictors of ON. Odds ratios (ORs) with 95% confidence intervals (CIs) and corresponding p-values were determined. Results Mean age of the study cohort (n = 208) was 5.4 years and male/female ratio 1.2:1. Seventy-eight (37.5%) patients had high-risk (HR) ALL and 127 (61.1%) received dexamethasone (DEX) as post-induction steroid. One hundred and sixty-two (77.9%) patients received E. coli ASP, 19 (9.1%) Erwinia ASP, and 27 (13.0%) PEG ASP. Twenty-one (10.1%) children developed ON. Joints affected by ON included the ankle in 11 subjects, knee in 10, hip in 8, and heel in one. Fourteen of the 21 patients (66.7%) had involvement of more than one joint. All patients were diagnosed with ON during ALL treatment, with the average being 69.2 weeks following ALL diagnosis. Forty-two (20.2%) subjects had a VTE while receiving therapy at an average of 29.4 weeks after ALL diagnosis. Nine patients had cerebral sinovenous thrombosis, 7 deep vein thrombosis (DVT), and one pulmonary embolism (PE). Twenty-six patients developed a central venous line (CVL)-related VTE. Results of univariate logistic regression analyses for osteonecrosis are presented in Table 1. VTE strongly predicted development of ON – OR 8.85 (95% CI 3.37–23.25, p< 0.001). Thirteen (31.0%) patients with VTE developed ON compared to 8 (4.8%) of 166 subjects without VTE. In 10 of 13 (76.9%) patients who developed both VTE and ON, the diagnosis of VTE preceded that of ON. Given that older age is a known risk factor for both VTE and ON, we conducted a multivariate analysis, which confirmed that age, ASP type, and VTE were independent, significant risk factors for ON (Table 2). Conclusion In addition to the known impact of older age, we identified VTE and type of ASP as independent risk factors for ON in children with ALL. These observations suggest overlap in the etiopathogenesis of ON and VTE. We recommend larger, prospective studies to confirm the association of VTE and PEG ASP with ON and to assess the impact of hypercoagulability on the development of ON. This in turn may help develop preventive strategies (e.g., thromboprophylaxis) for ALL-associated ON. Disclosures: No relevant conflicts of interest to declare.

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Chronic Pain After Breast Surgery: Incidence, Associated Factors and Impact on Quality of Life, an Observational Prospective Study

10.21203/rs.3.rs-53287/v1 ◽

2020 ◽

Author(s):

Gianluca Villa ◽

Raffaele Mandarano ◽

Caterina Scirè Calabrisotto ◽

Valeria Rizzelli ◽

Martina Del Duca ◽

...

Keyword(s):

Risk Factors ◽

Chronic Pain ◽

Logistic Regression ◽

Regression Analysis ◽

Logistic Regression Analysis ◽

Breast Surgery ◽

Persistent Pain ◽

Axillary Surgery ◽

Increased Risk ◽

The Impact

Abstract Background. Chronic pain after breast surgery (CPBS) has a disabling impact on postoperative health conditions. Mainly because of the lack of a clear definition, inconsistency does exist in the literature concerning both the actual incidence of and the risk factors for CPBS. The aim of this prospective, observational study is to describe incidence of and risk factors for CPBS, defined in accordance with the IASP taskforce. The impact of CPBS on patients’ daily functions is also described. Methods. Adult female patients scheduled for oncological or reconstructive breast surgery at the Breast Unit of Careggi Hospital (Florence, Italy) were prospectively observed. Persistent postoperative pain was evaluated at 2 months (“pain becoming chronic”) and at 3 months (CPBS) after surgery. Preoperative, intraoperative, and postoperative factors were compared in CPBS and No-CPBS groups through multivariate logistic regression analysis. Results. Among the 307 patients considered in this study, the incidence of “pain becoming chronic” was 25.4% [95%CI 20.6%-30.7%], while that of CPBS was 28% [95%CI 23.1%-33.4%]. The presence of persistent pain at 2 months concords with the presence of CPBS at 3 months (Cohen k coefficient 0.63, IC95% 0.54-0.73). Results from the logistic regression analysis suggest that axillary surgery (OR [95%CI], 2.99 [1.13-7.87], p=0.03), preoperative use of pain medications (OR [95%CI], 2.04 [1.20-3.46], p=0.01), and dynamic NRS values at 6 hours postoperatively (OR [95%CI], 1.28 [1.05-1.55], p=0.01) were all independent predictors for CPBS. Conclusions. Chronic pain after breast surgery is a frequent complication. The presence of an earlier form of persistent pain at 2 months after surgery concords with the occurrence of CPBS. The possibility to early detect persistent pain, particularly in those patients at high risk for CPBS, might help physicians to more effectively prevent pain chronicization. In our cohort, long-term use of analgesics for preexisting chronic pain, axillary surgery, and higher dynamic NRS values at 6 hours postoperatively were all factors associated with increased risk of developing CPBS. Trial registration: clinicalTrials.gov registration NCT04309929

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