scholarly journals Long-term experience with a collagen-elastin scaffold in combination with split-thickness skin grafts for the treatment of full-thickness soft tissue defects: improvements in outcome—a retrospective cohort study and case report

2021 ◽  
Author(s):  
Maximilian Lempert ◽  
Sascha Halvachizadeh ◽  
Clara Charlotte Salfelder ◽  
Valentin Neuhaus ◽  
Hans-Christoph Pape ◽  
...  
Keyword(s):  
Cohort Study ◽  
Soft Tissue ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Skin Grafting ◽  
Full Thickness ◽  
Thickness Skin ◽  
Split Thickness Skin Grafting ◽  
Significant Difference ◽  
The Impact

Abstract Purpose The management of severe soft tissue injuries to the extremities with full-thickness wounds poses a challenge to the patient and surgeon. Dermal substitutes are used increasingly in these defects. The aim of this study was to investigate the impact of the type of injury on the success rate of Matriderm® (MD)-augmented split-thickness skin grafting, as well as the role of negative pressure wound therapy (NPWT) in preconditioning of the wounds, with a special focus on the reduction of the bioburden. Methods In this study, 45 wounds (44 affecting lower extremities (97.7%)), resulting from different types of injuries: soft tissue (ST), soft tissue complications from closed fracture (F), and open fracture (OF) in 43 patients (age 55.0 ± 18.2 years, 46.7% female), were treated with the simultaneous application of MD and split-thickness skin grafting. The study was designed as a retrospective cohort study from March 2013 to March 2020. Patients were stratified into three groups: ST, F, and OF. Outcome variables were defined as the recurrence of treated wound defects, which required revision surgery, and the reduction of bioburden in terms of reduction of number of different bacterial strains. For statistical analysis, Student’s t-test, analysis of variance (ANOVA), Mann–Whitney U test, and Pearson’s chi-squared test were used. Results There was no significant difference in the rate of recurrence in the different groups (F: 0%; OF: 11.1%; ST: 9.5%). The duration of VAC therapy significantly differed between the groups (F: 10.8 days; OF: 22.7 days; ST: 12.6 days (p < 0.05)). A clinically significant reduction of bioburden was achieved with NPWT (bacterial shift (mean (SD), F: − 2.25 (1.89); OF: − 1.9 (1.37); ST: − 2.6 (2.2)). Conclusion MD-augmented split-thickness skin grafting is an appropriate treatment option for full-thickness wounds with take rates of about 90%. The complexity of an injury significantly impacts the duration of the soft tissue treatment but does not have an influence on the take rate. NPWT leads to a relevant reduction of bioburden and is therefore an important part in the preconditioning of full-thickness wounds.

Does left atrial appendage morphology have any impact on the results of percutaneous closure?

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
V Constantin ◽  
A Cinaud ◽  
F Brigadeau ◽  
A Lepillier ◽  
B Pierre ◽  
...  
Keyword(s):  
Cohort Study ◽  
Retrospective Cohort Study ◽  
Left Atrial ◽  
Retrospective Cohort ◽  
Left Atrial Appendage ◽  
Cardiac Computed Tomography ◽  
Atrial Appendage ◽  
Significant Difference ◽  
The Impact

Abstract Introduction Transcatheter left atrial appendage (LAA) occlusion is an alternative treatment in patients with atrial fibrillation (AF), high CHADSVASC Score and a contra-indication to anticoagulants. This retrospective cohort study aims to evaluate the impact of LLA morphology on procedure outcomes. Methods Patients from eight French centers who underwent left atrial appendage occlusion from February 2012 to January 2017 were included in this retrospective cohort study. LLA morphology was described by preoperative cardiac computed tomography (CT). Clinical data and Transoesophageal echocardiography (TEE) or CT results were collected during follow-up. Results Among 469 included patients, LAA morphologies were described in 215 cases 45.8%), 150 patients (70%) were implanted with Watchman devices, 57 (26%) with Amplatzer devices and 8 procedures (4%) failed. LAA Morphology was Chicken Wing (34%), Windsock (45%), cauliflower (18%) and 3% had another morphology including Cactus. There was no difference in patient characteristics between the different morphology groups. Mean follow-up was 9.6±11 months, during which 190 patients underwent LAA imaging (TEE in 171 and CT in 19 patients). There was no significant difference in the failure rate (p=0.72), duration of the procedure (p=0.065), peri-device leak (p=0.83) device-related thrombus (p=0.96) and the occurrence of stroke (p=1) during follow-up. Conclusion LLA morphology did not influence complication occurrence after occlusion in this cohort. Funding Acknowledgement Type of funding source: None

scholarly journals P666 Neutropenia in inflammatory bowel disease patients on TNF inhibitors: A single-centre, retrospective cohort study

2020 ◽  
Vol 14 (Supplement_1) ◽  
pp. S547-S548
Author(s):  
D AlAskar ◽  
A Mais ◽  
E Al Sulais ◽  
T Alameel
Keyword(s):  
Cohort Study ◽  
Neutrophil Count ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Subsequent Development ◽  
Final Analysis ◽  
Significant Difference ◽  
Post Marketing ◽  
Factor Α ◽  
The Impact

Abstract Background Tumor necrosis factor-α inhibitors (TNFi) have become the mainstay of treatment in moderate to severe cases of IBD. The haematological safety profile of these agents has been documented in multiple clinical trials and post-marketing registries. Nonetheless, neutropenia has been reported in patients receiving TNFi for IBD and other diseases (Bessissow et al 2012). In this study, we aim to ascertain the relationship between the use of TNFi and the development of neutropenia in IBD patients. Methods This is a retrospective cohort study including all adult IBD patients receiving TNFi at our centre from the year 2007 to 2018. Our primary outcome was the development of any neutropenic episode after starting a TNFi. Neutropenia was defined as circulating absolute neutrophil count (ANC) less than 1500/mm3. For our secondary outcomes, we evaluated the impact of concomitant use of (5-ASA) or an immunomodulator on the risk of developing neutropenia. We also looked at the effect of baseline neutrophil and WBC counts on the subsequent development of neutropenia. Results A total of 292 patients met the inclusion criteria, 11 patients were excluded for not having neutrophil count done. The final analysis included 281 patients. The mean age of patients in this study was 33. Adalimumab was the most frequently prescribed TNFi. Of those included, 96 patients (34.2%) developed at least one episode of neutropenia while on a TNFi. The majority of these episodes (67.7%) were mild with ANC between 1000 and 1500/mm3. There was no significant difference in the age, gender, agent used or type of IBD between those who developed neutropenia and those who did not. On the other hand, baseline neutrophil count and concomitant use of azathioprine and 5-ASA were significant independent predictors of neutropenia after commencing TNFi. (Table 1). Conclusion In this study, mild neutropenia was common amongst IBD patients on TNFi. Patients were more likely to develop neutropenia if they have been on concurrent therapy with an immunomodulator or 5-ASA. Future prospective studies are required to further clarify the significance of neutropenia in IBD patients receiving TNFi.

scholarly journals Timing of hospital admission for stillbirth delivery on maternal and obstetric outcome: a retrospective cohort study

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Dana Anaïs Muin ◽  
Anke Scharrer ◽  
Alex Farr ◽  
Herbert Kiss ◽  
Helmuth Haslacher
Keyword(s):  
Cohort Study ◽  
Hospital Admission ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Intrauterine Fetal Death ◽  
Delivery Mode ◽  
Tertiary Referral Center ◽  
Presenting Symptoms ◽  
Significant Difference ◽  
The Impact

AbstractThe effect of timing of hospital admission for stillbirth delivery following late intrauterine fetal death (IUFD) has not yet been described. By this study, we aimed to gain an understanding of the impact of “immediate” (i.e., on the same day of IUFD diagnosis) versus “delayed” hospital admission (i.e., on the subsequent day or two days after IUFD diagnosis) on maternal and delivery outcome parameters. This retrospective cohort study comprised all women who suffered a singleton IUFD ≥ 21 gestational weeks and delivered the stillborn at our tertiary referral center between 2003 and 2019. We excluded all terminations of pregnancy and women presenting with acute symptoms on the day of IUFD diagnosis. In total, 183 women were included of whom 69.4% (n = 127) were immediately admitted and 30.6% (n = 56) had delayed admission. Median gestational age of IUFD was 30+3 (21+0–41+3) weeks. Whilst women with early signs of labor were more frequently admitted immediately (87.5%; 14/16), neither maternal demographic and obstetric parameters, nor day of the week or presenting symptoms influenced the timing of hospital admission. 77.6% (142/183) of women after IUFD diagnosis delivered within the first 3 days after admission. Women after immediate admission equally often delivered on admission day and the day after (26.0%; 33/127 each), women after delayed admission most commonly delivered the day after admission (39.3%; 22/56). Stillbirth delivery on the day of diagnosis was more common upon immediate admission (p = 0.006), especially in early gestational weeks (p = 0.003) and with small fetal weight (p < 0.001), requiring less induction of labor. No significant difference regarding delivery mode, labor duration, use of intrapartum analgesia, need for episiotomy and risk of perineal injury was observed between the groups. Also rate of intrapartum hemorrhage was independent of admission timing, although immediately admitted women experienced greater median blood loss after vaginal delivery. Maternal laboratory parameters (hemoglobin, thrombocytes and CRP) were independent of admission timing, except for higher levels of leucocytes, neutrophils and lymphocytes in immediately admitted women. Our study shows no clinical superiority of immediate hospital admission for stillbirth delivery. Under stable medical circumstances, it, therefore, seems feasible to allow the woman delayed admission for labor and delivery.

Nonunion Rates in Hind- and Midfoot Arthrodesis in Current, Ex-, and Nonsmokers

2020 ◽  
pp. 107110072097126
Author(s):  
Jack Allport ◽  
Jayasree Ramaskandhan ◽  
Malik S. Siddique
Keyword(s):  
Risk Factor ◽  
Cohort Study ◽  
Relative Risk ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Smoking Status ◽  
Time Frame ◽  
Modifiable Risk Factor ◽  
Level Of Evidence ◽  
Significant Difference

Background: Nonunion rates in hind or midfoot arthrodesis have been reported as high as 41%. The most notable and readily modifiable risk factor that has been identified is smoking. In 2018, 14.4% of the UK population were active smokers. We examined the effect of smoking status on union rates for a large cohort of patients undergoing hind- or midfoot arthrodesis. Methods: In total, 381 consecutive primary joint arthrodeses were identified from a single surgeon’s logbook (analysis performed on a per joint basis, with a triple fusion reported as 3 separate joints). Patients were divided based on self-reported smoking status. Primary outcome was clinical union. Delayed union, infection, and the need for ultrasound bone stimulation were secondary outcomes. Results: Smoking prevalence was 14.0%, and 32.2% were ex-smokers. Groups were comparable for sex, diabetes, and body mass index. Smokers were younger and had fewer comorbidities. Nonunion rates were higher in smokers (relative risk, 5.81; 95% CI, 2.54-13.29; P < .001) with no statistically significant difference between ex-smokers and nonsmokers. Smokers had higher rates of infection ( P = .05) and bone stimulator use ( P < .001). Among smokers, there was a trend toward slower union with heavier smoking ( P = .004). Conclusion: This large retrospective cohort study confirmed previous evidence that smoking has a considerable negative effect on union in arthrodesis. The 5.81 relative risk in a modifiable risk factor is extremely high. Arthrodesis surgery should be undertaken with extreme caution in smokers. Our study shows that after cessation of smoking, the risk returns to normal, but we were unable to quantify the time frame. Level of Evidence: Level III, retrospective cohort study.

scholarly journals 387. Markers for Mortality in COVID-19 Patients with Atrial Fibrillation or Flutter

2020 ◽  
Vol 7 (Supplement_1) ◽  
pp. S262-S262
Author(s):  
Kok Hoe Chan ◽  
Bhavik Patel ◽  
Iyad Farouji ◽  
Addi Suleiman ◽  
Jihad Slim
Keyword(s):  
Atrial Fibrillation ◽  
Logistic Regression ◽  
Cohort Study ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Prognostic Markers ◽  
Univariate Analysis ◽  
Laboratory Data ◽  
Significant Difference ◽  
New Onset

Abstract Background Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) infection can lead to many different cardiovascular complications, we were interested in studying prognostic markers in patients with atrial fibrillation/flutter (A. Fib/Flutter). Methods A retrospective cohort study of patients with confirmed COVID-19 and either with existing or new onset A. Fib/Flutter who were admitted to our hospital between March 15 and May 20, 2020. Demographic, outcome and laboratory data were extracted from the electronic medical record and compared between survivors and non-survivors. Univariate and multivariate logistic regression were employed to identify the prognostic markers associated with mortality in patients with A. Fib/Flutter Results The total number of confirmed COVID-19 patients during the study period was 350; 37 of them had existing or new onset A. Fib/Flutter. Twenty one (57%) expired, and 16 (43%) were discharged alive. The median age was 72 years old, ranged from 19 to 100 years old. Comorbidities were present in 33 (89%) patients, with hypertension (82%) being the most common, followed by diabetes (46%) and coronary artery disease (30%). New onset of atrial fibrillation was identified in 23 patients (70%), of whom 13 (57%) expired; 29 patients (78%) presented with atrial fibrillation with rapid ventricular response, and 2 patients (5%) with atrial flutter. Mechanical ventilation was required for 8 patients, of whom 6 expired. In univariate analysis, we found a significant difference in baseline ferritin (p=0.04), LDH (p=0.02), neutrophil-lymphocyte ratio (NLR) (p=0.05), neutrophil-monocyte ratio (NMR) (p=0.03) and platelet (p=0.015) between survivors and non-survivors. With multivariable logistic regression analysis, the only value that had an odds of survival was a low NLR (odds ratio 0.74; 95% confidence interval 0.53–0.93). Conclusion This retrospective cohort study of hospitalized patients with COVID-19 demonstrated an association of increase NLR as risk factors for death in COVID-19 patients with A. Fib/Flutter. A high NLR has been associated with increased incidence, severity and risk for stroke in atrial fibrillation patients but to our knowledge, we are first to demonstrate the utilization in mortality predictions in COVID-19 patients with A. Fib/Flutter. Disclosures Jihad Slim, MD, Abbvie (Speaker’s Bureau)Gilead (Speaker’s Bureau)Jansen (Speaker’s Bureau)Merck (Speaker’s Bureau)ViiV (Speaker’s Bureau)

scholarly journals The change of coagulation profile in two-staged arthroplasty for periprosthetic joint infection patients: a retrospective cohort study

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Hao Li ◽  
Rui Li ◽  
L. L. Li ◽  
Wei Chai ◽  
Chi Xu ◽  
...  
Keyword(s):  
Cohort Study ◽  
Periprosthetic Joint Infection ◽  
Retrospective Cohort Study ◽  
Persistent Infection ◽  
Retrospective Cohort ◽  
Joint Infection ◽  
Diagnostic Study ◽  
Level Of Evidence ◽  
Coagulation Profile ◽  
Significant Difference

Abstract Aims Periprosthetic joint infection (PJI) is a serious complication of total joint arthroplasty. We performed a retrospective cohort study to evaluate (1) the change of coagulation profile in two-staged arthroplasty patients and (2) the relationship between coagulation profile and the outcomes of reimplantation. Method Between January 2011 and December 2018, a total of 202 PJI patients who were operated on with two-staged arthroplasty were included in this study initially. This study continued for 2 years and the corresponding medical records were scrutinized to establish the diagnosis of PJI based on the 2014 MSIS criteria. The coagulation profile was recorded at two designed points, (1) preresection and (2) preimplantation. The difference of coagulation profile between preresection and preimplantation was evaluated. Receiver operating characteristic curves (ROC) were used to evaluate the diagnostic efficiency of the coagulation profile and change of coagulation profile for predicting persistent infection before reimplantation. Results The levels of APTT, INR, platelet count, PT, TT, and plasma fibrinogen before spacer implantation were significantly higher than before reimplantation. No significant difference was detected in the levels of D-dimer, ACT, and AT3 between the two groups. The AUC of the combined coagulation profile and the change of combined coagulation profile for predicting persistent infection before reimplantation was 0.667 (95% CI 0.511, 0.823) and 0.667 (95% CI 0.526, 0.808), respectively. Conclusion The coagulation profile before preresection is different from before preimplantation in two-staged arthroplasty and the coagulation markers may play a role in predicting infection eradication before reimplantation when two-stage arthroplasty is performed. Level of evidence Level III, diagnostic study.

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