scholarly journals Reduction in surgical site infection with suprafascial intrawound application of vancomycin powder in instrumented posterior spinal fusion: a retrospective case-control study

2018 ◽  
Vol 29 (2) ◽  
pp. 193-198 ◽  
Author(s):  
Shoichi Haimoto ◽  
Ralph T. Schär ◽  
Yusuke Nishimura ◽  
Masahito Hara ◽  
Toshihiko Wakabayashi ◽  
...  
Keyword(s):  
Adverse Effects ◽  
Spinal Fusion ◽  
Case Control Study ◽  
Posterior Spinal Fusion ◽  
Study Groups ◽  
Treated Group ◽  
Untreated Group ◽  
Retrospective Case ◽  
Vancomycin Powder ◽  
Control Study

OBJECTIVERecent studies have demonstrated the efficacy of subfascial intrawound application of vancomycin powder in spine surgery in reducing the rate of surgical site infections (SSIs). However, to date no study has evaluated the efficacy and safety of suprafascial application of vancomycin powder in spine surgery. The purpose of this study was to quantify the rate of SSIs after open instrumented posterior spinal fusion with and without application of suprafascial vancomycin powder and to evaluate the rate of vancomycin powder–related local adverse effects.METHODSThe authors conducted a single-center retrospective case-control study of adult patients undergoing open instrumented posterior fusion of the cervical, thoracic, or lumbar spine performed by a single surgeon from January 2010 through December 2016. In March 2013, routine application of 1 g of suprafascial vancomycin powder was started for all cases in addition to standard systemic antibiotic prophylaxis. Baseline demographics and operative data as well as the SSI rates were compared between the study groups. The incidence of vancomycin powder–related adverse effects was analyzed.RESULTSA total of 515 patients (268 in the untreated group and 247 in the treated group) were included in the study. The mean age was significantly higher in the treated group than in the untreated group (58.4 vs 54.4 years, p < 0.01). Operative variables were similar between the study groups. Patients receiving vancomycin powder had a significantly lower infection rate (5.6% in the untreated group vs 0% in the treated group, p < 0.001). No vancomycin powder–related adverse effects were identified in the treated group.CONCLUSIONSRoutine application of suprafascial intrawound vancomycin powder in addition to systemic antibiotic prophylaxis is an easy-to-use, safe, and effective strategy for preventing SSIs after instrumented posterior spinal fusion. Suprafascial application of vancomycin powder could be a valuable alternative to previously reported subfascial distribution, minimizing the risk of local adverse drug reactions.

P–666 Validating the hypo-androgenic PCOS-like phenotype (H-PCOS), derived from the “lean” PCOS phenotype at younger ages

2021 ◽  
Vol 36 (Supplement_1) ◽  
Author(s):  
S Darmon ◽  
E Molinari ◽  
D F Albertini ◽  
P Patrizio ◽  
D H Barad ◽  
...  
Keyword(s):  
Live Birth ◽  
Case Control Study ◽  
Treatment Resistance ◽  
Study Groups ◽  
Case Control ◽  
Clinical Pregnancy ◽  
Retrospective Case ◽  
Birth Rates ◽  
Live Birth Rates ◽  
Control Study

Abstract Study question Is the resistance to standard infertility treatments of the H-PCOS-like phenotype reversed through reconstitution of androgen levels and can principle diagnostic markers of H-PCOS be validated? Summary answer Pre-supplementation with dehydroepiandrosterone (DHEA) eliminated treatment resistance of H-PCOS in comparison to matched infertile controls, also validating previously reported diagnostic features of this condition. What is known already H-PCOS evolves at older ages from a hyper-androgenic “lean” PCOS phenotype at young ages. Its ontogeny diverts from other PCOS phenotype between 20s and mid–30s by going from being hyper- to being hypo-androgenic due to insufficiency in adrenal androgen production, believed to represent an autoimmune process. In contrast to other PCOS phenotypes, the “lean” PCOS phenotype appears highly treatment resistant to standard fertility treatments. Study design, size, duration Retrospective case control study. Participants/materials, setting, methods We investigated 54 H-PCOS patients with qualifying diagnostic criteria1,2 and 50 matched infertility patients without diagnostic H-PCOS criteria as controls. Both study groups underwent routine in vitro fertilization (IVF) cycles, including androgen pre-supplementation in both groups via dehydroepiandrosterone (DHEA) for women diagnosed as hypo-androgenic. Main outcome measures were clinical pregnancy and live birth rates. 1Gleicher et al., J Sterodi Biochem Mol Biol 2017;167:144–152; 2Gleicher N, et al., Endocrine 2018;59(3):661–676 Main results and the role of chance Study groups were similar in age, number of prior IVF cycles and previous live births. H-PCOS patients in contrast to controls, however, demonstrated previously reported characteristics of H-PCOS diagnosis, including a significantly higher DHEA/DHEAS ratio, significantly higher AMH, confirming higher functional ovarian reserve, significantly lower free testosterone and significantly higher sex hormone binding globulin (SHBG), further confirming lower androgens. Finally, H-PCOS patients also demonstrated significantly increased evidence for immune system hyperactivity. Clinical pregnancy and live birth rates were separately assessed in first IVF cycles and cumulatively. Both analyses demonstrated, even after age-adjustments, absolutely no outcome differences in cycle cancellations, numbers of oocytes retrieved, first and cumulative pregnancy and live birth rates. At least one pregnancy was achieved in 12 women in both groups (22.2% and 24.0%) and at least one live birth in 11 (20.4%) vs. 8 (14.8%), respectively. Limitations, reasons for caution As a retrospective case control study, here presented data must be interpreted with caution. The close match between H-PCOS and control patients and the very clear differentiation in patient characteristics between the two groups, however, support the credibility of this study. Wider implications of the findings: This study demonstrated that androgen reconstitution in H-PCOS patients completely reversed treatment resistance compared to well-matched infertile control patients. It also validated previously defined diagnostic criteria of H-PCOS, hopefully facilitating a timelier diagnosis of a, still, widely overlooked condition in female infertility. Trial registration number NA

Evaluating the efficacy of topical vancomycin powder in the treatment of open lower extremity fractures

Trauma ◽  
2020 ◽  
pp. 146040862097814
Author(s):  
Justin Vaida ◽  
Alexander DB Conti ◽  
Justin J Ray ◽  
Daniel A Bravin ◽  
Michelle A Bramer
Keyword(s):  
Lower Extremity ◽  
Case Control Study ◽  
Smoking Status ◽  
Case Control ◽  
Wound Complications ◽  
Control Group ◽  
Retrospective Case ◽  
Vancomycin Powder ◽  
Control Study

Introduction Optimal management of lower extremity fractures includes early antibiotics administration, thorough irrigation and debridement, consideration of soft tissue injury, and definitive skeletal management. The purpose of this study was to evaluate the efficacy of topical vancomycin powder in the treatment of open lower extremity fractures. Methods This was a retrospective case control study in which open lower extremity fractures at our institution were reviewed for development of infection (including species and sensitivity if present) and the development of unanticipated wound complications requiring intervention. Patients from 2010-2015 were treated with standard of care consistent with evidence-based literature (IV antibiotics with external fixator, intramedullary nail, etc.). Patients from 2016–18 were additionally treated with vancomycin powder applied directly to the wound before closure. All patients were monitored per the treating surgeon’s standard follow-up protocol and had follow-up of at least two months. Results This retrospective case control study comprised 434 patients. The historical control group (n = 388 patients) and treatment group (n = 46 patients) were similar for age, sex, BMI (body mass index), diabetes, smoking status, and Injury Severity Score (ISS). There were 36 infections (9.28%) in the control group compared to four infections (8.70%) in the vancomycin powder group (p = 0.901). No significant difference was seen after adjusting for age, sex, BMI, diabetes, smoking status, and ISS. The vancomycin powder group experienced significantly more wound complications (15.2%) compared to the control group (6.4%; p = 0.039), which remained significant when adjusting for multiple covariates. Conclusions Topical vancomycin powder did not reduce the infection rate when applied in the surgical site of open lower extremity fractures. Instead, the addition of topical vancomycin powder resulted in significantly more wound complications in patients with open lower extremity fractures.

Negative Interaction between Lithium and Electroconvulsive Therapy – A Case-Control Study

1996 ◽  
Vol 168 (2) ◽  
pp. 241-243 ◽  
Author(s):  
A. K. Jha ◽  
G. S. Stein ◽  
P. Fenwick
Keyword(s):  
Adverse Effects ◽  
Case Control Study ◽  
Case Control ◽  
Control Group ◽  
Study Group ◽  
Negative Interaction ◽  
Retrospective Case ◽  
Concurrent Use ◽  
Control Study ◽  
Age And Sex

BackgroundConcurrent use of lithium and ECT is suspected to increase neurotoxicity.MethodA retrospective case-control study over an eight-year period was conducted to investigate the adverse effects of a combined lithium/ECT treatment Thirty-one subjects with combined lithium/ECT treatment were compared with a control group (ECT only) of 135 cases matched for age and sex.ResultsMost cases in both groups had no adverse effects. Three (10%) study group subjects and 15 (11 %) controls experienced brief delirium. Three controls and none of the subjects developed a prolonged confusion. There were no significant differences in the profile of other adverse effects between the two groups.ConclusionPrescription of lithium together with ECT was not associated with higher frequency of adverse effects.

Risk Factors for Surgical Site Infections Following Neurosurgical Spinal Fusion Operations: A Case Control Study

2016 ◽  
Vol 38 (3) ◽  
pp. 340-347 ◽  
Author(s):  
Thomas L. Walsh ◽  
Ashley M. Querry ◽  
Sheila McCool ◽  
Alison L. Galdys ◽  
Kathleen A. Shutt ◽  
...  
Keyword(s):  
Risk Factors ◽  
Spinal Fusion ◽  
Protective Factor ◽  
Case Control Study ◽  
Care Center ◽  
Surgical Site Infections ◽  
Case Control ◽  
Study Cohort ◽  
Retrospective Case ◽  
Control Study

OBJECTIVETo determine risk factors for the development of surgical site infections (SSIs) in neurosurgery patients undergoing spinal fusion.DESIGNRetrospective case-control study.SETTINGLarge, academic, quaternary care center.PATIENTSThe study population included all neurosurgery patients who underwent spinal fusion between August 1, 2009, and August 31, 2013. Cases were defined as patients in the study cohort who developed an SSI. Controls were patients in the study cohort who did not develop an SSI.METHODSTo achieve 80% power with an ability to detect an odds ratio (OR) of 2, we performed an unmatched case-control study with equal numbers of cases and controls.RESULTSDuring the study period, 5,473 spinal fusion procedures were performed by neurosurgeons in our hospital. With 161 SSIs recorded during the study period, the incidence of SSIs associated with these procedures was 2.94%. While anterior surgical approach was found to be a protective factor (OR, 0.20; 95% confidence interval [CI], 0.08–0.52), duration of procedure (OR, 1.58; 95% CI, 1.29–1.93), American Society of Anesthesiologists score of 3 or 4 (OR, 1.79; 95% CI, 1.00–3.18), and hospitalization within the prior 30 days (OR, 5.8; 95% CI, 1.37–24.57) were found in multivariate analysis to be independent predictors of SSI following spinal fusion. Prior methicillin-resistant Staphylococcus aureus (MRSA) nares colonization was highly associated with odds 20 times higher of SSI following spinal fusion (OR, 20.30; 95% CI, 4.64–8.78).CONCLUSIONSIn additional to nonmodifiable risk factors, prior colonization with MRSA is a modifiable risk factor very strongly associated with development of SSI following spinal fusion.Infect Control Hosp Epidemiol 2017;38:348–352

scholarly journals GAIT DISORDERS IN PATIENTS WITH INSTRUMENTED NEUROMUSCULAR SCOLIOSIS

2019 ◽  
Vol 18 (4) ◽  
pp. 272-275
Author(s):  
Carlos Duncan ◽  
Sebastian Maenza ◽  
Cecilia Schmid ◽  
Eduardo Segal ◽  
Juan Couto
Keyword(s):  
Spinal Fusion ◽  
Spinal Instrumentation ◽  
Posterior Spinal Fusion ◽  
Neuromuscular Scoliosis ◽  
Retrospective Case ◽  
Level Of Evidence ◽  
Age At Surgery ◽  
Ambulatory Patients ◽  
Control Study

ABSTRACT Introduction: The effect of spinal fusion on gait in patients with neuromuscular scoliosis continues to be a controversial issue, especially in patients where the spinal fusion extends to the pelvis. Objective: To evaluate the effect of spinal instrumentation in these patients. Methods: We evaluated 34 patients in a retrospective study. The mean age at surgery was 14±3 years and only ambulatory patients who presented neuromuscular scoliosis and non-progressing neurogenic pathology were included. The patients were surgically treated by posterior spinal fusion with or without extension to the pelvis. Preoperative (PRE) and postoperative (POP) Rx were measured. Ambulatory potential was clinically examined in all the patients, and 10 patients were assessed by full-gait analysis. Results: The minimum POP follow-up was 2 years (2006-2016). Nine patients were instrumented to the pelvis when the obliquity was greater than 15°; the remaining patients were treated using the same fusion-level criteria as those applied for idiopathic scoliosis. All patients maintained their gait, with improvements in coronal and sagittal balance, transfers and sitting skills, physical appearance, and in some cases, gait speed. Conclusions: Spinal instrumentation in ambulatory patients with neuromuscular scoliosis, including procedures with extension to the pelvis, provides adequate correction and preserves ambulatory function. Level of evidence III; Retrospective case control study.

scholarly journals Questionable Effect of Crosshatching Incision in Septoplasty

2020 ◽  
Vol 13 (1) ◽  
pp. 47-51 ◽  
Author(s):  
Jung-Soo Kim ◽  
Sung Jae Heo
Keyword(s):  
Adverse Effects ◽  
Nasal Obstruction ◽  
Case Control Study ◽  
Acoustic Rhinometry ◽  
Saddle Nose ◽  
Retrospective Case ◽  
Cross Sectional ◽  
Surgical Success ◽  
The Difference ◽  
Control Study

Objectives. Crosshatching incision has been considered a useful method for correcting cartilaginous septal deviation. The aim of this study was to determine the utility and limitations of this approach.Methods. This retrospective case-control study included 353 patients who underwent septoplasty performed by a senior surgeon between January 2004 and December 2010. Patients were classified into two groups according to whether crosshatching incision was performed (n=151) during septoplasty or not (n=202). All other techniques performed during septoplasty were identical. The parameters of surgical success (improvement of nasal obstruction, correction of deviation, and acoustic rhinometry results) and adverse effects were compared between the groups.Results. There were no significant differences in the parameters of surgical success between the groups (improvement of nasal obstruction, P=0.333; correction of deviation, P=0.608; acoustic rhinometry results, P=0.322 for the difference in the minimal cross-sectional area; P=0.919 for difference in volume). Relative to patients who did not undergo the cross-hatching incision, patients with whom the technique was performed showed a significantly higher incidence of saddle nose (0/202 vs. 4/151 cases, P=0.033) and overcorrection (0/202 vs. 5/151 cases, P=0.014).Conclusion. Crosshatching incision during septoplasty did not produce better surgical outcomes; however, it caused adverse effects such as saddle nose and overcorrection. Therefore, the use of crosshatching incision should be re-evaluated.

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