Post-Anticoagulation Cessation D-Dimer Testing and VTE Recurrence in Real-World Australian Audit

Abstract Aim Elevated D-dimer post-anticoagulation cessation is a recognised risk factor for recurrent venous thromboembolic events (VTE). In particular, raised D-dimer post cessation has been associated with increased risk of recurrence in unprovoked major VTE. Currently in Australia, D-dimer has not been widely used in practice to stratify the risk of VTE recurrence. This study aims to retrospectively analyse the effect of routine D-dimer testing and it's association with VTE recurrence. Methods A retrospective evaluation was performed on 1024 patients with a diagnosis of VTE at a tertiary hospital in Australia between January 2013 and December 2016. Data collected included demographics, results and timing of D-dimer testing and serial imaging results. Results 1024 patients were reviewed with a total median follow up of 12 months (range 0-59 months). D-dimer was tested in 189 patients (18.5%) within 90 days after cessation of anticoagulation. Of these patients, median age was 58 (18-92) and 55.3% (n=105) were female. 33.3% (n=63) had isolated distal deep vein thrombosis (IDDVT), 66.3% (n=126) had above knee DVT (AKDVT)/pulmonary embolus (PE), 54.5% (n=103) of VTE were provoked. Abnormal post cessation D-dimer (>500) was found in 72 patients (37.9%). Of these, 25 patients were restarted on anticoagulation; one had recurrent VTE whilst on low dose apixaban 2.5mg BD and one had recurrence after cessation of anticoagulation at a later date. Patients with elevated D-dimer post cessation had a higher rate of recurrence with the highest risk in patients with D-dimer >1000 (RR 7.38, p=<0.01) outlined in Table 1. Of the 164 patients with post cessation D-dimer testing who remained off anticoagulation there were a total of 24 (12.6%) episodes of recurrent VTE. Elevated D-dimer post anticoagulation cessation was a significant risk factor for recurrence in both provoked VTE (RR 4.21, p=0.01) and unprovoked VTE cohorts (RR 4.55, p=0.008) outlined in Table 2. When provoked VTE were sub-categorised, raised D-dimer demonstrated the most statistical significance in VTE provoked by travel (RR 13.5 p=0.06). Of the patients with post anticoagulation cessation D-dimer testing 170 patients (89.9%) had repeat imaging to assess for residual thrombus. In the subgroup of patients with no residual thrombus, elevated D-dimer was a significant risk factor for VTE recurrence (RR 6.4, p=<0.01). Patients with normal D-dimer and no residual thrombus had the lowest rate of recurrence 5.4% (n=4) see Table 3. When stratified by type of VTE, elevated D-dimer post anticoagulation cessation was significantly related to risk for recurrence in the overall IDDVT sub-cohort (RR 4.09, p=0.007). This was not significant for the AKDVT/PE sub cohort (RR 3.24, p=0.079). However, for patients with unprovoked AKDVT or PE, having D-dimer tested post anticoagulation, regardless of result, was associated with lower rates of VTE recurrence RR 0.30 (p=0.02) compared to those who had no D-dimer testing as part of follow-up. Conclusion Post treatment D-dimer testing may have a clinical role in stratifying the risk of VTE recurrence along with repeat imaging to detect residual thrombus. Elevated D-dimer post anticoagulation cessation is associated with increased risk of VTE recurrence for both provoked and unprovoked VTE with highest risk in patients with D-dimer >1000. Patients with no residual thrombus and a negative D-dimer post anticoagulation cessation had the lowest rate of recurrence. In the subgroup of patients with provoked VTE and IDDVT a positive D-dimer post cessation was associated with 4.21 and 4.09 relative risk of recurrence respectively, suggesting that the role of D-dimer testing can be extended to these subpopulations. Interestingly, in patients with unprovoked AKDVT or PE, having post-cessation D-dimer testing performed, regardless of result, was associated with a significantly lower rate of VTE recurrence compared to patients without D-dimer testing, which may be related to specialist review and recommencement of anticoagulation in high-risk patients. Disclosures No relevant conflicts of interest to declare.

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Physical Illness and Suicide Risk in Rural Residents of Contemporary China

Crisis ◽

10.1027/0227-5910/a000271 ◽

2014 ◽

Vol 35 (5) ◽

pp. 330-337 ◽

Cited By ~ 14

Author(s):

Cun-Xian Jia ◽

Lin-Lin Wang ◽

Ai-Qiang Xu ◽

Ai-Ying Dai ◽

Ping Qin

Keyword(s):

Risk Factor ◽

Family Income ◽

Rural China ◽

Significant Risk ◽

Significant Risk Factor ◽

Health Condition ◽

Physical Illness ◽

Rural Residents ◽

Increased Risk ◽

Study Population

Background: Physical illness is linked with an increased risk of suicide; however, evidence from China is limited. Aims: To assess the influence of physical illness on risk of suicide among rural residents of China, and to examine the differences in the characteristics of people completing suicide with physical illness from those without physical illness. Method: In all, 200 suicide cases and 200 control subjects, 1:1 pair-matched on sex and age, were included from 25 townships of three randomly selected counties in Shandong Province, China. One informant for each suicide or control subject was interviewed to collect data on the physical health condition and psychological and sociodemographic status. Results: The prevalence of physical illness in suicide cases (63.0%) was significantly higher than that in paired controls (41.0%; χ2 = 19.39, p < .001). Compared with suicide cases without physical illness, people who were physically ill and completed suicide were generally older, less educated, had lower family income, and reported a mental disorder less often. Physical illness denoted a significant risk factor for suicide with an associated odds ratio of 3.23 (95% CI: 1.85–5.62) after adjusted for important covariates. The elevated risk of suicide increased progressively with the number of comorbid illnesses. Cancer, stroke, and a group of illnesses comprising dementia, hemiplegia, and encephalatrophy had a particularly strong effect among the commonly reported diagnoses in this study population. Conclusion: Physical illness is an important risk factor for suicide in rural residents of China. Efforts for suicide prevention are needed and should be integrated with national strategies of health care in rural China.

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Risk Factors and Outcomes of Revision Arthroscopic Posterior Shoulder Capsulolabral Repair in Contact Athletes

Orthopaedic Journal of Sports Medicine ◽

10.1177/2325967119s00317 ◽

2019 ◽

Vol 7 (7_suppl5) ◽

pp. 2325967119S0031

Author(s):

Justin W. Arner ◽

Sachidhanand Jayakumar ◽

Dharmesh Vyas ◽

James P. Bradley

Keyword(s):

Risk Factors ◽

Risk Factor ◽

Revision Surgery ◽

Significant Risk ◽

Return To Sport ◽

Significant Risk Factor ◽

Return To Play ◽

Bone Width ◽

Posterior Shoulder

Objectives: Risk factors and outcomes of revision arthroscopic posterior capsulolabral repairare currently not well defined in contact athletes.Evaluation of risk factors for contact athletes who require revision arthroscopic posterior unidirectional capsulolabral repair is needed. Methods: A total of 186 contact athletes’ shoulders that underwent arthroscopic posterior capsulolabral repair at minimum 2 year follow-up were reviewed. Those who required revision surgery were compared with those who did not. Parameters assessed included age, gender, labral and/or capsular injury, level of sport, and return to sport. Glenoid bone width, bone version, labral width, and labral version were also compared. Results: Eleven shoulders required revision surgery (5.9%) at mean 12.0 year follow-up. The only significant risk factor was glenoid bone width (revision=26.4 mm vs. non-revision=29.1 mm, p=0.005). Cartilage version (p=0.676), labral version (p=0.539), and bone version (p=0.791) were not significantly different between groups, nor was labral width (p=0.751). Gender (p=0.326), labral injury (p=0.349), capsule injury (p=0.683), and level of sport (p=0.381) were not significant factors for requiring revision surgery. Both return to sport at the same level (revision=16.7% vs. non-revision=72.1%, p<0.001) and overall return to sport (revision=50% vs. non-revision=93.7%, p<0.001) was significantly worse in the revision group. Of those who had revision surgery, 33.3% stated their original surgery was not worthwhile, which was significantly higher than the 4.5% in the non-revision group (p=0.041). Conclusion: Contact athletes underwent revision arthroscopic posterior capsulolabral repair at an incidence of 5.9% at 12 year follow-up. The only significant risk factor for requiring revision surgery was smaller glenoid bone width. Return to play was significantly worse in those who required revision surgery. This data is essential for patient selection, optimal treatment techniques, and patient education as posterior shoulder capsulolabral repair in contact athletes that require revision has not previously been evaluated.

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P3850Impact of sex and risk factors for venous thromboembolism on the clinical course of first acute venous thromboembolism. Insights from the PREFER in VTE

European Heart Journal ◽

10.1093/eurheartj/ehz745.0690 ◽

2019 ◽

Vol 40 (Supplement_1) ◽

Author(s):

M Giustozzi ◽

S Barco ◽

L Valerio ◽

F A Klok ◽

M C Vedovati ◽

...

Keyword(s):

Risk Factors ◽

Risk Factor ◽

Venous Thromboembolism ◽

Baseline Risk ◽

Major Surgery ◽

First Episode ◽

Risk Of Recurrence ◽

Recurrent Vte ◽

The Impact

Abstract Introduction The interaction between sex and specific provoking risk factors for venous thromboembolism (VTE) may influence initial presentation and prognosis. Purpose We investigated the impact of sex on the risk of recurrence across subgroups of patients with first VTE classified according to baseline risk factors. Methods PREFER in VTE was an international, non-interventional registry (2013–2015) including patients with a first episode of acute symptomatic objectively diagnosed VTE. We studied the risk of recurrence in patients classified according to baseline provoking risk factors for VTE consisted of i) major transient (major surgery/trauma, >5 days in bed), ii) minor transient (pregnancy or puerperium, estroprogestinic therapy, prolonged immobilization, current infection or bone fracture/soft tissue trauma); iii) unprovoked events, iv) active cancer-associated VTE. Results A total of 3,455 patients diagnosed with first acute VTE were identified, of whom 1,623 (47%) were women. The percentage of patients with a major transient risk factor was 22.2% among women and 19.7% among men. Minor transient risk factors were present in 21.3% and 12.4%, unprovoked VTE in 51.6% and 61.6%, cancer-associated VTE in 4.9% of women and 6.3% of men, respectively. The proportions of cases treated with Vitamin-K antagonists (VKAs) and direct oral anticoagulants (DOACs) were similar between sexes. Median length of treatment of VKAs was 181.5 and 182.0 days and of DOACs was 113.0 and 155.0 days in women and men, respectively. At 12-months of follow-up, VTE recurrence was reported in 74 (4.8%) women and 80 (4.5%) men. Table 1 shows the sex-specific proportion of recurrences by VTE risk factor categories. Table 1 Major Transient (n=722) Minor transient (n=573) Cancer-associated (n=195) Unprovoked (1965) Women (361) Men (361) OR (95% CI) Women (346) Men (227) OR (95% CI) Women (79) Men (116) OR (95% CI) Women (837) Men (1128) OR (95% CI) One-year follow-up, n (N%) Recurrent VTE, 21 (6.2) 10 (2.9) 0.46 (0.2; 0.9) 9 (2.7) 12 (5.4) 2.09 (0.9; 5.0) 6 (8.0) 5 (4.5) 0.54 (0.2; 1.9) 38 (4.7) 53 (4.7) 1.03 (0.7; 1.6) Major bleeding, 6 (1.8) 5 (1.5) 0.83 (0.3; 2.7) 5 (1.5) 1 (0.5) 0.30 (0.1; 2.6) 1 (1.3) 3 (2.7) 2.07 (0.2; 20) 10 (1.2) 15 (1.4) 1.11 (0.6; 2.4) All-cause death, 37 (10.2) 31 (8.5) 0.82 (0.5; 1.4) 10 (2.9) 14 (6.2) 2.21 (0.9; 5.1) 26 (32.9) 49 (42.2) 1.49 (0.8; 2.7) 33 (3.9) 30 (2.7) 0.66 (0.4; 1.1) Conclusions The proportion of patients with recurrent VTE events after first acute symptomatic VTE provoked by transient risk factors was not negligible during the first year of follow-up during in both women and men. These results may have implications on the decision whether to consider extended anticoagulant therapy in selected patients with provoked events. Acknowledgement/Funding This study was funded by Daiichi Sankyo.

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Predictors, clinical characteristics, and outcome of conduct disorder in girls with attention-deficit/hyperactivity disorder: a longitudinal study

Psychological Medicine ◽

10.1017/s0033291707000529 ◽

2007 ◽

Vol 37 (12) ◽

pp. 1731-1741 ◽

Cited By ~ 50

Author(s):

MICHAEL C. MONUTEAUX ◽

STEPHEN V. FARAONE ◽

LARA MICHELLE GROSS ◽

JOSEPH BIEDERMAN

Keyword(s):

Sexual Behavior ◽

Risk Factor ◽

Longitudinal Study ◽

Clinical Characteristics ◽

Significant Risk ◽

Significant Risk Factor ◽

Sexual Behavior Problems ◽

Hyperactivity Disorder ◽

Girls With Adhd

ABSTRACTBackgroundResearch on the overlap between attention-deficit/hyperactivity disorder (ADHD) and conduct disorder (CD) in males has provided useful information on the etiology, correlates, course, and nosology of this co-morbid condition. However, it is unclear how these results extend to females. Our aim was to examine the predictors, clinical characteristics, and functional outcome of CD in a sample of female youth with and without ADHD.MethodWe conducted a blind, 5-year prospective longitudinal study of girls with (n=140) and without (n=122) ADHD, aged 6–18 years at baseline. At the 5-year follow-up, 123 (88%) and 112 (92%) of the ADHD and control children respectively were reassessed at a mean age of 16·7 years. Psychiatric disorders were assessed using blind structured diagnostic interviews.ResultsBaseline ADHD was a significant risk factor for lifetime CD throughout childhood and adolescence [hazard ratio (HR) 5·8, 95% confidence interval (CI) 2·9–11·5, p<0·001]. Among ADHD girls, childhood-onset (<12 years) CD was predicted by paternal antisocial personality disorder (ASPD), while adolescent-onset CD (⩾12 years) was predicted by family conflict. In addition, lifetime CD significantly predicted academic, psychiatric and sexual behavior problems in girls with ADHD at follow-up.ConclusionsADHD is a significant risk factor for CD in girls. CD is associated with increased risk for academic, psychiatric and sexual behavior problems compared to ADHD girls without CD. Given that the therapeutic approaches indicated by ADHD and CD differ, these findings highlight the importance of improved efforts aimed at early identification and treatment of CD in girls with ADHD.

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Incidence and risk factors of thromboembolism (TE) in advanced gastric cancer (AGC) receiving chemotherapy: A prospective observational study (NCT01047618).

Journal of Clinical Oncology ◽

10.1200/jco.2014.32.3_suppl.31 ◽

2014 ◽

Vol 32 (3_suppl) ◽

pp. 31-31

Author(s):

Baek-Yeol Ryoo ◽

Min-Hee Ryu ◽

Sook Ryun Park ◽

Myoung Joo Kang ◽

Kwon-Oh Park ◽

...

Keyword(s):

Gastric Cancer ◽

Risk Factor ◽

Incidence Rate ◽

Univariate Analysis ◽

Significant Risk ◽

Significant Risk Factor ◽

Limited Information ◽

Vein Thrombosis ◽

Gastric Cancer Patients ◽

D Dimer

31 Background: The incidence of TE in gastric cancer patients (pts) is known to be high. But because the previous reports were retrospectively analyzed in heterogeneous population, they give us only limited information. We therefore conducted a prospective study to investigate the incidence of TE and prognostic factors related with TE in AGC pts receiving chemotherapy. Methods: We checked D-dimer and coagulation battery at the start of chemotherapy and every 3 months thereafter. If there developed symptoms or signs of TE, or if D-dimer elevated 5 μg/mL or more we checked imaging studies to detect TE. The chemotherapy regimen mainly included fluoropyrimidine plus platinum-based for 1st-line, taxane-based for 2nd-line, and irinotecan-based for 3rd-line chemotherapy. Results: Between Nov 2009 and Apr 2012, 241 pts were analyzed. They received median 9 (range 1 - 42) cycles of chemotherapy. During the median observational duration of 16.7 months, 32 events (13.3%, 95% CI; 8.9 - 17.7%) of TE were detected. The types of TE were as follows; deep vein thrombosis (DVT) only in 18 (56.3%), pulmonary embolism (PE) only in 4 (12.5%), DVT and PE in 5 (15.6%), cerebral infarction in 4 (12.5%), and intra-abdominal arterial thrombosis 1 (3.1%) pts. The 1-year and 2-year cumulative incidences of TE were 15.0% (95% CI, 9.6 - 20.0%) and 20.0% (95% CI, 12.1 - 26.9%), respectively. The incidence rate of TE was 14.1 (95% CI, 9.6 - 19.9) events/100 person-years. In univariate analysis, the previous gastrectomy history, baseline CA72-4 level and baseline D-dimer level were statistically significant risk factor related with TE development. But in multivariate analysis, baseline D-dimer level was the only independent risk factor associated with TE development (Hazard ratio 2.46 [95% CI, 1.08 - 5.63], P= 0.033). Among 32 pts with baseline D-dimer 5.0 μg/mL or higher, 8 pts (25.0%) developed TE, while for pts whose baseline D-dimer was lower than 5.0 μg/mL, 24 out of 209 pts (11.5%) developed TE. Conclusions: The incidence rate of TE in AGC pts receiving chemotherapy was 14.1 (95% CI, 9.6 - 19.9) events/100 person-years. D-dimer was an important prognostic factor related with TE development. Clinical trial information: NCT01047618.

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Non-OO blood type influences the risk of recurrent venous thromboembolism

Thrombosis and Haemostasis ◽

10.1160/th13-06-0488 ◽

2013 ◽

Vol 110 (12) ◽

pp. 1172-1179 ◽

Cited By ~ 33

Author(s):

Esteban Gándara ◽

Michael J. Kovacs ◽

Susan R. Kahn ◽

Philip S. Wells ◽

David A. Anderson ◽

...

Keyword(s):

Risk Factor ◽

Venous Thromboembolism ◽

Anticoagulant Therapy ◽

Oral Anticoagulation ◽

Blood Type ◽

Increased Risk ◽

Recurrent Venous Thromboembolism ◽

Abo Blood Type ◽

Recurrent Vte

SummaryThe role of ABO blood type as a risk factor for recurrent venous thromboembolism (VTE) in patients with a first unprovoked VTE who complete oral anticoagulation therapy is unknown. The aim of this study was to determine if non-OO blood type is a risk factor for recurrent VTE in patients with a first unprovoked VTE who completed 5–7 months of anticoagulant therapy. In an ongoing cohort study of patients with unprovoked VTE who discontinued oral anticoagulation after 5–7 months of therapy, six single nucleotide polymorphisms sites were tested to determine ABO blood type using banked DNA. The main outcome was objectively proven recurrent VTE. Mean follow-up for the cohort was 4.19 years (SD 2.16). During 1,553 patient-years of follow-up, 101 events occurred in 380 non-OO patients (6.5 events per 100 patient years; 95% CI 5.3–7.7) compared to 14 events during 560 patient years of follow-up in 129 OO patients (2.5 per 100 patient years; 95% CI 1.2–3.7), the adjusted hazard ratio was 1.98 (1.2–3.8). In conclusion, non-OO blood type is associated with a statistically significant and clinically relevant increased risk of recurrent VTE following discontinuation of anticoagulant therapy for a first episode of unprovoked VTE.

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D-Dimer Levels and Risk of Recurrence Following Provoked Venous Thromboembolism: Findings from the Riete Registry

Blood ◽

10.1182/blood-2018-99-111190 ◽

2018 ◽

Vol 132 (Supplement 1) ◽

pp. 3810-3810

Author(s):

Martin Ellis ◽

Martin Mar ◽

Monreal Manuel ◽

Orly Hamburger-Avnery ◽

Alessandra Bura-Riviere ◽

...

Keyword(s):

Risk Factors ◽

Risk Factor ◽

Venous Thromboembolism ◽

Anticoagulant Therapy ◽

Conflicts Of Interest ◽

Hazard Ratio ◽

Increased Risk ◽

Risk Patients ◽

Recurrent Vte ◽

D Dimer

Abstract Background. Patients with venous thromboembolism (VTE) secondary to transient risk factors or cancer may develop VTE recurrences after discontinuing anticoagulant therapy. Identifying at-risk patients could help to guide the ideal duration of anticoagulant therapy in these patients. Methods. We used the RIETE database to assess the prognostic value of d-dimer testing after discontinuing anticoagulation to identify patients at increased risk for recurrences. The proportion of patients with raised d-dimer levels was determined and the hazard ratio (HR) for VTE recurrences compared to those with normal levels was calculated. Univariate and multivariate analyses of factors associated with VTE recurrence were performed. Results. 3 606 patients were identified in the database in April 2018: 2 590 had VTE after a transient risk factor and 1016 had a cancer. D-dimer levels were measured after discontinuing anticoagulation in 1 732 (67%) patients with transient risk factors and 732 (72%) patients with cancer-associated VTE and these patients formed the cohort in which recurrent VTE rate was calculated. D-dimers and were elevated in 551 (31.8%) of patients with a transient risk factor and were normal in 1181 (68.2%). In the cancer-associated group, d-dimers were elevated in 398 (54.3%) and normal in 334 (45.7%) patients. The adjusted hazard ratio for recurrent VTE was: 2.32 (95%CI: 1.55-3.49) in patients with transient risk factors and 2.23 (95%CI: 1.50-3.39) in those with cancer. Conclusions. Patients with raised d-dimer levels after discontinuing anticoagulant therapy for provoked or cancer-associated VTE are at increased risk for recurrent VTE and death. Future studies could target these patients for extended anticoagulation. Disclosures No relevant conflicts of interest to declare.

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Definitions and Risk Factors for Drug-Resistant Epilepsy in an Adult Cohort

Frontiers in Neurology ◽

10.3389/fneur.2021.777888 ◽

2021 ◽

Vol 12 ◽

Author(s):

Alyssa Denton ◽

Lilian Thorpe ◽

Alexandra Carter ◽

Adriana Angarita-Fonseca ◽

Karen Waterhouse ◽

...

Keyword(s):

Risk Factors ◽

Older Adults ◽

Risk Factor ◽

Significant Risk ◽

Significant Risk Factor ◽

Drug Resistant ◽

Age Group ◽

Drug Resistant Epilepsy ◽

New Diagnosis

Background: Less than one-third of people with epilepsy will develop drug-resistant epilepsy (DRE). Establishing the prognosis of each unique epilepsy case is an important part of evaluation and treatment.Most studies on DRE prognosis have been based on a pooled, heterogeneous group, including children, adults, and older adults, in the absence of clear recognition and control of important confounders, such as age group. Furthermore, previous studies were done before the 2010 definition of DRE by the International League Against Epilepsy (ILAE), so data based on the current definitions have not been entirely elucidated. This study aimed to explore the difference between 3 definitions of DRE and clinical predictors of DRE in adults and older adults.Methods: Patients with a new diagnosis of epilepsy ascertained at a Single Seizure Clinic (SSC) in Saskatchewan, Canada were included if they had at least 1 year of follow-up. The first study outcome was the diagnosis of DRE epilepsy at follow-up using the 2010 ILAE definition. This was compared with 2 alternative definitions of DRE by Kwan and Brodie and Camfield and Camfield. Finally, risk factors were analyzed using the ILAE definition.Results: In total, 95 patients with a new diagnosis of epilepsy and a median follow-up of 24 months were included. The median age of patients at the diagnosis of epilepsy was 33 years, and 51% were men. In the cohort, 32% of patients were diagnosed with DRE by the Kwan and Brodie definition, 10% by Camfield and Camfield definition, and 15% by the ILAE definition by the end of follow-up. The only statistically significant risk factor for DRE development was the failure to respond to the first anti-seizure medication (ASM).Conclusion: There were important differences in the percentage of patients diagnosed with DRE when using 3 concurrent definitions. However, the use of the ILAE definition appeared to be the most consistent through an extended follow-up. Finally, failure to respond to the first ASM was the sole significant risk factor for DRE in the cohort after considering the age group.

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Increased Risk of Valvular Heart Disease in Systemic Sclerosis: An Underrecognized Cardiac Complication

The Journal of Rheumatology ◽

10.3899/jrheum.201005 ◽

2021 ◽

pp. jrheum.201005

Author(s):

Reto D. Kurmann ◽

Edward A. El-Am ◽

Yasser A. Radwan ◽

Avneek S. Sandhu ◽

Cynthia S. Crowson ◽

...

Keyword(s):

Heart Disease ◽

Systemic Sclerosis ◽

Valvular Heart Disease ◽

Cardiac Involvement ◽

Significant Risk ◽

Fold Increase ◽

Significant Risk Factor ◽

Increased Risk ◽

Incident Cases

Objective Cardiac involvement is a poor prognostic marker in systemic sclerosis (SSc). While diastolic dysfunction, myocardial fibrosis, and arrhythmias are traditionally considered features of primary cardiac involvement in SSc, the incidence of valvular heart disease (VHD) is not well reported. Our objective was to examine the prevalence of VHD at time of SSc diagnosis and incidence of VHD during follow up compared to non-SSc subjects. Methods Medical records of patients with suspicion of SSc were reviewed to identify incident cases. SSc subjects were matched 1:2 by age- and sex to non-SSc subjects. Results The study included 78 incident SSc cases and 156 non-SSc comparators [56 years (± 15.7), 91% female]. A nearly 4-fold increase in the prevalence of moderate/severe VHD prior to SSc diagnosis compared to non-SSc subjects (6% vs. 0%; P=0.004) was identified. During follow up, 18 SSc and 12 non-SSc patients developed moderate/severe VHD. The cumulative incidence of VHD at 10 years after SSc incidence/index was 17.9% (95% CI: 10.7-29.9%) in patients with SSc compared with 2.3% (95% CI: 0.7-6.3%) in non-SSc subjects (HR: 4.23; 95% CI: 2.03-8.83). Coronary heart disease was the only significant risk factor for VHD. Conclusion SSc patients have a 4-fold increase in the prevalence of moderate/severe VHD at diagnosis compared to non-SSc patients. They also have a 4-fold increased risk of developing moderate/severe VHD after diagnosis of SSc. Aortic stenosis and mitral regurgitation have a much higher prevalence in SSc patients, besides secondary tricuspid regurgitation. Underlying mechanisms for this association require further elucidation.

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Parvovirus Enteritis and Other Risk Factors Associated With Persistent Gastrointestinal Signs in Dogs Later in Life: a Retrospective Cohort Study

10.21203/rs.3.rs-711893/v1 ◽

2021 ◽

Author(s):

Kanae Takada ◽

Anne M. Flemming ◽

Maarten J. Voordouw ◽

Anthony P. Carr

Keyword(s):

Risk Factors ◽

Risk Factor ◽

Cohort Study ◽

Retrospective Cohort Study ◽

Retrospective Cohort ◽

Significant Risk ◽

Significant Risk Factor ◽

Health Problems ◽

Organ Systems ◽

Increased Risk

Abstract Background: Parvoviral enteritis is a viral gastrointestinal (GI) infection of dogs. Recovery from PE has been associated with persistent GI signs. The objectives of this study were: (i) To determine whether dogs that have recovered from PE (post-parvo dogs) had an increased risk of persistent GI signs compared to uninfected controls. (ii) To investigate the lifestyle and clinicopathologic factors that are associated with persistent GI signs in post-parvo dogs. Methods: Eighty-six post-parvo dogs and 52 age-matched control dogs were enrolled in this retrospective cohort study. The owners were interviewed about the health and habits of their dogs using a questionnaire. We used logistic regression to test whether parvovirus enteritis and other risk factors are associated with general health problems in all dogs and with persistent GI signs in post-parvo dogs.Results: The prevalence of persistent GI signs was significantly higher in post-parvo dogs compared to control dogs (57% vs 25%, P < 0.001). Markers of disease severity such as neutropenia, low body temperature, and treatment with an antiemetic medication (metoclopramide) were significant risk factors for persistent GI signs in post-parvo dogs. Persistent GI signs in post-parvo dogs was a risk factor for health problems in other organ systems.Conclusions: Parvovirus enteritis is a significant risk factor for persistent GI signs in dogs highlighting the importance of prevention. The risk factors identified in the present study may guide future investigations on the mechanisms that link parvovirus enteritis to chronic health problems in dogs.

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