scholarly journals Long‐term clinical outcomes of periodontal regeneration with Enamel Matrix Derivative (EMD): a retrospective cohort study with a mean follow‐up of 10 years

2021 ◽  
Author(s):  
Siro P. De Ry ◽  
Andrea Roccuzzo ◽  
Niklaus P. Lang ◽  
Anton Sculean ◽  
Giovanni E. Salvi
Keyword(s):  
Cohort Study ◽  
Clinical Outcomes ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Periodontal Regeneration ◽  
Enamel Matrix Derivative ◽  
Enamel Matrix ◽  
Matrix Derivative

Beneficial effect of statins on total mortality in abdominal aortic aneurysm (AAA) repair

2017 ◽  
Vol 22 (5) ◽  
pp. 406-410 ◽  
Author(s):  
Sven Ross Mathisen ◽  
Michael Abdelnoor
Keyword(s):  
Cohort Study ◽  
Beneficial Effect ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Open Surgery ◽  
Total Mortality ◽  
Abdominal Aortic ◽  
Statin Use

In this single center, retrospective cohort study we wished to compare early and total mortality for all patients treated for abdominal aortic aneurysms (AAA) with open surgery who were taking statins compared to those who were not. A cohort of 640 patients with AAA was treated with open surgery between 1999 and 2012. Patients were consecutively recruited from a source population of 390,000; 21.3% were female, and the median age was 73 years. The median follow-up was 3.93 years, with an interquartile range of 1.79–6.58 years. The total follow-up was 2855 patient-years. An explanatory strategy was used. The propensity score (PS) was implemented to control for selection bias and confounders. The crude effect of statin use showed a 78% reduction of the 30-day mortality. A stratified analysis using the Mantel–Haenszel method on quintiles of the PS gave an adjusted effect of the odds ratio equal to 0.43 (95% CI: 0.18–0.96), indicating a 57% reduction of the 30-day mortality for statin users. The adjusted rate ratio was 0.62 (95% CI: 0.45–0.83), indicating a reduction of long-term mortality of 38% for statin users compared to non-users for a median follow-up of 3.93 years. This retrospective cohort study showed a significant beneficial effect of statin use on early and long-term survival for patients treated with open surgery. To be conclusive, our results need to be replicated by a randomized clinical trial.

First Metatarsophalangeal Arthrodesis After Failed Distal Chevron Osteotomy for Hallux Valgus

2020 ◽  
pp. 107110072096883
Author(s):  
Maria Tiscar Garcia-Ortiz ◽  
Jose Juan Talavera-Gosalbez ◽  
Lorena Moril-Peñalver ◽  
Maria Dolores Fernandez-Ruiz ◽  
Carolina Alonso-Montero ◽  
...  
Keyword(s):  
Cohort Study ◽  
Clinical Outcomes ◽  
Hallux Valgus ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Hallux Rigidus ◽  
Primary Group ◽  
Plate Removal ◽  
The Mean

Background: The purpose of this study was to compare the clinical outcomes after first metatarsophalangeal (MTP) joint arthrodesis for hallux rigidus between patients who underwent primary arthrodesis and those who had had a prior surgery for hallux valgus. Methods: Our design was a retrospective cohort study comparing 29 patients who underwent primary arthrodesis (primary group) and 34 patients with hallux rigidus after hallux valgus surgery (secondary group). The clinical assessment included the American Orthopaedic Foot & Ankle Society (AOFAS) score and a visual analog scale (VAS) for pain. Radiological evaluation was also performed. Overall, the mean postoperative follow-up was 3.4 (range, 2-5) years. Results: At final follow-up, AOFAS and VAS pain scores significantly improved in both groups ( P = .001). However, the mean AOFAS ( P = .001) and VAS pain ( P = .008) scores were significantly better in the primary group than in the secondary group. Radiologically, there were no significant differences between the groups in any angle after arthrodesis. Revision surgeries were not required in the primary group. In the secondary group, there was 1 revision due to deep infection, and 3 other patients required dorsal plate removal. Excluding plate removal, the Kaplan-Meier survival at 3 years was not significantly different between groups ( P = .775). Conclusion: Although arthrodesis of the first MTP joint was an effective procedure for hallux rigidus, the clinical outcomes in patients who had prior hallux valgus surgery were worse than those for patients who underwent primary surgery for hallux rigidus. Level of Evidence: Level III, retrospective cohort study.

scholarly journals Comparison of outcomes of ORIF versus bidirectional tractor and arthroscopically assisted CRIF in the treatment of lateral tibial plateau fractures: a retrospective cohort study

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Xiangtian Deng ◽  
Hongzhi Hu ◽  
Yiran Zhang ◽  
Weijian Liu ◽  
Qingcheng Song ◽  
...  
Keyword(s):  
Cohort Study ◽  
Internal Fixation ◽  
Clinical Outcomes ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Tibial Plateau ◽  
Clinical Score ◽  
Lateral Tibial Plateau ◽  
Significant Difference

Abstract Background Lateral tibial plateau fractures (TPFs) are often treated with conventional open reduction and internal fixation (ORIF) through standard anterolateral sub-meniscal arthrotomy. There has been increasing support for “bidirectional rapid redactor” device-assisted closed reduction and internal fixation (CRIF) for treating TPFs. The aim of the present study is to compare the clinical and radiological outcomes between CRIF and ORIF procedures. Methods We performed a retrospective cohort study of 55 lateral TPF patients (Schatzker types I–III) who accepted surgical treatment at our trauma level 1 center between January 2016 and January 2018. They were divided into the CRIF group (32 patients) and the ORIF group (23 patients) based upon the different surgical protocols. The patients’ clinical outcome analysis was evaluated by using the Knee Society Score (KSS) and Rasmussen’s clinical score. For radiological assessment, changes in tibial plateau width (TPW), articular depression depth (ADD), medial proximal tibial angle (MPTA), and posterior tibial slope angle (PTSA) were evaluated using radiographs and computed tomography (CT) scan. Results The CRIF group had a mean follow-up of 28.9 months, and the ORIF group had a mean follow-up of 30.7 months (p>0.05). Furthermore, there was no statistically significant difference in terms of age, gender, injury mechanism, follow-up time, time interval from injury to surgery, and Schatzker classification in the two groups. With respect to the clinical outcomes including the KSS score and Rasmussen’s clinical score, there was also no significant difference (p>0.05). Nevertheless, the CRIF group had lower intra-operative blood loss, shorter hospitalization days, and better range of movement of the knee joint than the ORIF group (p<0.05). Furthermore, CRIF had better radiological results when compared to the ORIF group using Rasmussen’s radiological score (p<0.05), although no significant difference was observed in TPW, ADD, MPTA, and PTSA between the two groups (p>0.05). Conclusion The present study showed that CRIF could achieve comparable clinical outcomes and better radiological results for treating lateral TPFs as compared with conventional ORIF.

scholarly journals Fragmented QRS is independently predictive of long-term adverse clinical outcomes in Asian patients hospitalized for heart failure: a retrospective cohort study

2021 ◽  
Author(s):  
Jeffrey Shi Kai Chan ◽  
Jiandong Zhou ◽  
Sharen Lee ◽  
Andrew Li ◽  
Martin Tan ◽  
...  
Keyword(s):  
Heart Failure ◽  
Cohort Study ◽  
Clinical Outcomes ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Independent Predictor ◽  
Fragmented Qrs ◽  
Asian Patients ◽  
Tertiary Center

Fragmented QRS (fQRS) results from myocardial scarring and predicts cardiovascular mortality and ventricular arrhythmia. In this retrospective cohort study, we evaluated the prevalence and prognostic value of fQRS in patients hospitalized for heart failure between 1st January 2010 and 31st December 2016 at a tertiary center in Hong Kong. We found fQRS to be an independent predictor of adverse clinical outcomes, with higher risks in those with higher fQRS burden.

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