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Prepectoral breast reconstruction with complete anterior implant coverage using a single, large, square-shaped acellular dermal matrix

BMC Surg. 2022 Jun 20;22(1):234. doi: 10.1186/s12893-022-01683-z.

ABSTRACT

BACKGROUND: Several studies have discussed various methods of prepectoral direct-to-implant (DTI) breast reconstruction using an acellular dermal matrix (ADM) prosthesis to achieve full coverage. However, methods for anterior coverage have rarely been reported. In this study, prepectoral DTI breast reconstruction with complete anterior implant coverage was performed using a square piece of ADM. This study aimed to introduce our prepectoral DTI technique and determine its functional and cosmetic outcomes as well as compare them with those of existing subpectoral DTI techniques.

METHODS: This prospective comparative study focused on 29 patients (35 breasts) and 34 patients (35 breasts) who underwent breast reconstruction via subpectoral implant insertion (control group) and anterior coverage prepectoral implant insertion (anterior coverage group), respectively. Postoperative complications were noted, and breast symmetry was evaluated using the Vectra H2 three-dimensional scanner. The modified Kyungpook National University Hospital Breast-Q (KNUH Breast-Q) scale was used to assess the patient’s subjective satisfaction with the reconstruction and postoperative quality of life.

RESULTS: No remarkable differences in terms of complications (seroma, skin necrosis, nipple-areola complex necrosis, hematoma, capsular contracture, and infection) were noted in both groups. Compared with controls, considerably better results were observed among those in the anterior coverage group in terms of the mean drain removal period. Furthermore, those in the anterior coverage group showed greater symmetry on three-dimensional scans than the controls; however, this was not statistically significant. Subjective satisfaction and postoperative quality of life measured using the KNUH Breast-Q scale were not significantly different between both groups.

CONCLUSIONS: Considering its stability, faster recovery time, and cosmetic benefit, prepectoral breast reconstruction with anterior implant coverage using a single, large ADM is a good choice to perform breast reconstruction with implant insertion in patients who have undergone mastectomy.

LEVEL OF EVIDENCE: II.

PMID:35718764 | DOI:10.1186/s12893-022-01683-z

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The implementation and validation of the NoMAD during a complex primary care intervention

BMC Med Res Methodol. 2022 Jun 19;22(1):175. doi: 10.1186/s12874-022-01655-0.

ABSTRACT

BACKGROUND: Normalization process theory (NPT) has been widely used to better understand how new interventions are implemented and embedded. The NoMAD (Normalization Measurement Development questionnaire) is a 23-item NPT instrument based on NPT. As the NoMAD is a relatively new instrument, the objectives of this paper are: to describe the experience of implementing the NoMAD, to describe it being used as a feedback mechanism to gain insight into the normalization process of a complex health intervention, and to further explore the psychometric properties of the instrument.

METHODS: Health TAPESTRY was implemented in six Family Health Teams (total of seven sites) across Ontario. Healthcare team members at each site were invited to complete the NoMAD, and three general questions about normalization, six times over a 12-month period. Each site was then provided a visual traffic light summary (TLS) reflecting the implementation of the Health TAPESTRY. The internal consistency of each sub-scale and validity of the NoMAD were assessed. Learnings from the implementation of the NoMAD and subsequent feedback mechanism (TLS) are reported descriptively.

RESULTS: In total, 56 diverse health care team members from six implementation sites completed the NoMAD. Each used it at least once during the 12-month study period. The implementation of the NoMAD and TLS was time consuming to do with multiple collection (and feedback) points. Most (60%) internal consistency values of the four subscales (pooled across site) across each collection point were satisfactory. All correlations were positive, and most (86%) were statistically significant among NoMAD subscales. All but one correlation between the NoMAD subscales and the general questions were positive, and most (72%) were significant. Generally, scores on the subscales were higher at 12-month than baseline, albeit did not follow a linear pattern of change across implementation. Generally, scores were higher for experienced sites compared to first-time implementors.

CONCLUSION: Our experience would suggest fewer collection points; three timepoints spaced out by several months are adequate, if repeated administration of the NoMAD is used for feedback loops. We provide additional evidence of the psychometric properties of the NoMAD.

TRIAL REGISTRATION: Registered at ClinicalTrials.gov: NCT03397836 .

PMID:35718763 | DOI:10.1186/s12874-022-01655-0

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Comparison of dorsoventral and ventrodorsal approaches for ultrasound-guided quadratus lumborum block in cats: a cadaver study

Vet Anaesth Analg. 2022 May 26:S1467-2987(22)00076-9. doi: 10.1016/j.vaa.2022.05.003. Online ahead of print.

ABSTRACT

OBJECTIVE: To assess the feasibility of an ultrasound (US)-guided quadratus lumborum (QL)-psoas muscle (Pm) interfascial plane injection using a dorsoventral (DV) approach, and to compare needle visualization and distribution pattern between DV and ventrodorsal (VD) approaches.

STUDY DESIGN: Experimental anatomical study.

ANIMALS: A total of 14 cat cadavers.

METHODS: Bilateral in-plane US-guided injections in the QL-Pm plane were performed at the level of the second lumbar (L2) transverse process. A spinal needle was inserted using either a VD or DV approach. A total volume of 0.4 mL kg-1 of a solution of ropivacaine 0.18%, tissue dye and iohexol (350 mg mL-1), in a proportion of 3:1:1, respectively, was injected bilaterally. Spread of injectate was compared and evaluated using US, computed tomography (CT) scanning and anatomical dissection. Presence of dye on the sympathetic trunk was compared between methods using Kappa (κ) coefficient of agreement.

RESULTS: The QL-Pm plane was visualized, and dye was present in the target plane using both approaches. Needle visualization in the VD approach was enhanced compared with the DV approach (p = 0.0005). Mean distribution along the sympathetic trunk was 4.8 and 4.1 segments in the VD and DV approaches, respectively, showing non-statistical differences. The ventral branches of L1, L2 and L3 were successfully stained in 11/14 and 6/14 using the VD and DV approaches, respectively. Substantial agreement (κ = 0.61) of sympathetic trunk staining was observed between CT scan and anatomical dissection. Dye was observed cranial to the diaphragm in 7/8 cases on CT with both approaches. Epidural and abdominal cavity dye distribution was not observed.

CONCLUSIONS AND CLINICAL RELEVANCE: The DV approach to the QL-Pm plane could be an alternative to the VD approach. Both approaches seem capable of reaching the spinal nerves, the sympathetic trunk and both splanchnic and coeliac nerves in feline cadavers.

PMID:35718717 | DOI:10.1016/j.vaa.2022.05.003

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The regression discontinuity design: Methods and implementation with a worked example in health services research

Z Evid Fortbild Qual Gesundhwes. 2022 Jun 16:S1865-9217(22)00064-2. doi: 10.1016/j.zefq.2022.04.014. Online ahead of print.

ABSTRACT

BACKGROUND: The randomized controlled trial (RCT) is the gold standard in evidence-based medicine. However, this design may not be appropriate in every setting, so other methods or designs such as the regression discontinuity design (RDD) are required.

METHOD: The aim of this article is to introduce the RDD, summarise methodology in the context of health services research and present a worked example using the statistic software SPSS (Examples for R and Stata in the Appendix A). The mathematical notations of sharp and fuzzy RDD as well as their distinction are presented. Furthermore, examples from the literature and recent studies are highlighted, and both advantages and disadvantages of the design are discussed.

APPLICATION: The RDD consists of four essential steps: 1. Determine feasibility; 2. Note possible treatment manipulation, 3. Check for the treatment effect, and 4. Fit the regression models to measure the treatment effect.

CONCLUSION: The RDD comes as an alternative for studies in health service research where an RCT cannot be conducted, but a threshold-based comparison can be made.

PMID:35718728 | DOI:10.1016/j.zefq.2022.04.014

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Comparison of two formulations of alfaxalone for immersion anaesthesia in laboratory zebrafish (Daniorerio)

Vet Anaesth Analg. 2022 May 12:S1467-2987(22)00074-5. doi: 10.1016/j.vaa.2022.05.001. Online ahead of print.

ABSTRACT

OBJECTIVE: To compare two commercial formulations of alfaxalone for immersion anaesthesia in laboratory zebrafish.

STUDY DESIGN: Prospective, blinded, randomized study.

ANIMALS: A total of 20 adult Danio rerio (Tuebingen strain).

METHODS: Zebrafish were divided into two groups of 10 (five female, five male) and placed in individual immersion baths containing 10 mg L-1 of unpreserved alfaxalone (group 1) or preserved alfaxalone (group 2). Anaesthetists blinded to treatment used a composite score scale (CSS) (range 0-12) to assess fish every 30 seconds until induction of anaesthesia. Anaesthetic induction occurred when equilibrium and response to stimulus were lost. Fish were then placed in a clean water bath and scored every 60 seconds. Recovery from anaesthesia was defined as a CSS of ≤ 1. Time variables recorded were anaesthetic induction time (AIT), anaesthetic recovery time (ART) and total procedure time (TPT). Fish were observed for evidence of roupgross external pathology during the procedure. Following anaesthesia, four fish from each group were randomly chosen and euthanized for gill histopathology analysis immediately after recovery criteria were met. Data are presented as mean ± standard deviation. An independent t test was used to compare the difference in average anaesthetic time variables between groups (α = 0.05).

RESULTS: There were no statistical differences between groups in reported variables. TPT, AIT and ART were 10.2 ± 1.2, 1.9 ± 0.9 and 8.3 ± 1.2 minutes for group 1 and 10.8 ± 2.9, 2.4 ± 1.2 and 8.4 ± 2.7 minutes for group 2. No gross external pathology was evident, and no fish died during the experimental period. Histopathology showed normal gill pathology and no difference between the groups.

CONCLUSIONS AND CLINICAL RELEVANCE: Immersion anaesthesia using 10 mg L-1 of either formulation of alfaxalone resulted in anaesthesia of similar quality and duration.

PMID:35718716 | DOI:10.1016/j.vaa.2022.05.001

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Effect of pharmacy-led interventions during care transitions on patient hospital readmission: A systematic review

J Am Pharm Assoc (2003). 2022 May 24:S1544-3191(22)00155-8. doi: 10.1016/j.japh.2022.05.017. Online ahead of print.

ABSTRACT

BACKGROUND: The Centers for Medicare and Medicaid (CMS) established the Hospital Readmissions Reduction Program (HRRP) to reduce reimbursement payments to hospitals with excessive patient readmissions. Because of this program, hospitals have developed transitions of care (TOC) programs to improve patient outcomes.

OBJECTIVES: To identify and uniformly summarize the impact of pharmacy-led TOC interventions on 30-day readmission rates since the implementation of CMS HRRP.

METHODS: This study followed an a-priori protocol that was registered to International Prospective Register of Systematic Reviews. A systematic search was conducted using PubMed, EMBASE, International Pharmaceutical Abstracts, and CINAHL from January 1, 2013 through January 14, 2022. Studies were included if they met the following criteria: pharmacy-led intervention, 30-day readmission outcomes, patients at least 18 years old, original research performed in the United States, and English language only articles. Descriptive statistics were used to summarize study characteristics, outcomes, and elements of the study interventions.

RESULTS: A total of 1964 abstracts were screened with 123 studies being included in the review. A total of 110 (89.4%) studies showed a decrease in readmission rates. The largest decrease in readmission rates was 44.5% (range 0.2%-44.5%, median = 7.4%) and the most common pharmacy-led intervention was patient counseling (n = 119, 96.7%) followed by medication reconciliation (n = 111, 90.2%). High-risk patient populations were commonly targeted with 52 studies (42.3%) focusing on CMS HRRP related diagnoses.

CONCLUSION: Most pharmacist-led TOC interventions contributed to lower rates of 30-day readmission. Future studies should investigate the types of interventions that most significantly impact readmission rates.

PMID:35718715 | DOI:10.1016/j.japh.2022.05.017

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The effect of G-CSF used after allogeneic hematopoietic stem cell transplantation on engraftment times and platelet suspension replacement numbers

Transfus Apher Sci. 2022 Jun 7:103482. doi: 10.1016/j.transci.2022.103482. Online ahead of print.

ABSTRACT

BACKGROUND: With the use of granulocyte colony stimulating factor (G-CSF) after allogeneic hematopoietic stem cell transplantation (HSCT), the duration of neutrophil engraftment and hospitalization were shortened. However, there is no consensus on the effect of G-CSF on platelet engraftment time. The primary aim of our study is to determine the effect of G-CSF use on platelet engraftment time after HSCT. Secondary purposes are to determine the number of platelet suspension, number of erythrocyte suspension and incidence of acute graft versus disease after HSCT.

MATERIAL AND METHODS: Patients who had allogeneic stem cell transplantation at our center between 01.01.2011 and 01.01.2022 were retrospectively analyzed. Patients were divided into 2 groups as those who received and did not receive G-CSF after transplantation.

RESULTS: A total of 64 patients were included. While 32 patients were given post-HSCT G-CSF support, the other 32 patients were not given. Neutrophil engraftment time and length of hospital stay were shorter in the group receiving G-CSF (p < 0.05). Platelet engraftment time was shorter in the group that did not receive G-CSF (p < 0.05). The incidence of acute GVHD of the patients in group 1 tended to be higher than the patients in group 2 (40.6 % vs 15.6 %, p = 0.052). Post-HSCT platelet suspension was less in the group that did not receive G-CSF, but this difference was not statistically significant (p = 0.173).

CONCLUSION: While the positive effect of post HSCT G-CSF use on duration of neutrophil engraftment and hospitalization is evident, its effects on platelet engraftment need to be investigated.

PMID:35718683 | DOI:10.1016/j.transci.2022.103482

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Robotic versus laparoscopic distal pancreatectomy for pancreatic ductal adenocarcinoma: A propensity score-matched analysis

Hepatobiliary Pancreat Dis Int. 2022 Jun 7:S1499-3872(22)00133-3. doi: 10.1016/j.hbpd.2022.06.001. Online ahead of print.

ABSTRACT

BACKGROUND: Minimally invasive surgery is becoming increasingly popular in the field of pancreatic surgery. However, there are few studies of robotic distal pancreatectomy (RDP) for pancreatic ductal adenocarcinoma (PDAC). This study aimed to investigate the efficacy and feasibility of RDP for PDAC.

METHODS: Patients who underwent RDP or laparoscopic distal pancreatectomy (LDP) for PDAC between January 2015 and September 2020 were reviewed. Propensity score matching analyses were performed.

RESULTS: Of the 335 patients included in the study, 24 underwent RDP and 311 underwent LDP. A total of 21 RDP patients were matched 1:1 with LDP patients. RDP was associated with longer operative time (209.7 vs. 163.2 min; P = 0.003), less open conversion rate (0% vs. 4.8%; P < 0.001), higher costs (15722 vs. 12699 dollars; P = 0.003), and a higher rate of achievement of an R0 resection margin (90.5% vs. 61.9%; P = 0.042). However, postoperative pancreatic fistula grade B or C showed no significant inter-group difference (9.5% vs. 9.5%). The median disease-free survival (34.5 vs. 17.3 months; P = 0.588) and overall survival (37.7 vs. 21.9 months; P = 0.171) were comparable between the groups.

CONCLUSIONS: RDP is associated with longer operative time, a higher cost of surgery, and a higher likelihood of achieving R0 margins than LDP.

PMID:35718650 | DOI:10.1016/j.hbpd.2022.06.001

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Increased deaths from fungal infections during the COVID-19 pandemic-National Vital Statistics System, United States, January 2020-December 2021

Clin Infect Dis. 2022 Jun 19:ciac489. doi: 10.1093/cid/ciac489. Online ahead of print.

ABSTRACT

BACKGROUND: COVID-19-associated fungal infections cause severe illness, but comprehensive data on disease burden are lacking. We analyzed US National Vital Statistics System (NVSS) data to characterize disease burden, temporal trends, and demographic characteristics of persons dying from fungal infections during the COVID-19 pandemic.

METHODS: Using NVSS’s January 2018-December 2021 Multiple Cause of Death Database, we examined numbers and age-adjusted rates (per 100,000 population) of fungal deaths by fungal pathogen, COVID-19 association, demographic characteristics, and year.

RESULTS: Numbers and age-adjusted rates of fungal deaths increased from 2019 (n = 4,833, rate 1.2, 95% confidence interval [CI] 1.2-1.3) to 2021 (n = 7,199, rate: 1.8, 95% CI = 1.8-1.8); of 13,121 fungal deaths during 2020-2021, 2,868 (21.9%) were COVID-19-associated. Compared with non-COVID-19-associated fungal deaths (n = 10,253), COVID-19-associated fungal deaths more frequently involved Candida (n = 776 [27.1%] versus n = 2,432 [23.7%]) and Aspergillus (n = 668 [23.3%] versus n = 1,486 [14.5%]) and less frequently involved other specific fungal pathogens. Fungal death rates were generally highest in non-White and non-Asian populations. Death rates from Aspergillus infections were approximately two times higher in the Pacific US census division compared with most other divisions.

CONCLUSIONS: Fungal deaths increased during 2020-2021 compared with previous years, primarily driven by COVID-19-associated fungal deaths, particularly those involving Aspergillus and Candida. Our findings may inform efforts to prevent, identify, and treat severe fungal infections in COVID-19 patients, especially in certain racial/ethnic groups and geographic areas.

PMID:35717660 | DOI:10.1093/cid/ciac489

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The evaluation of changes in maxillofacial bones using cone beam tomography in acromegaly

Med Oral Patol Oral Cir Bucal. 2022 Jun 19:25280. doi: 10.4317/medoral.25280. Online ahead of print.

ABSTRACT

BACKGROUND: The aim of the study was to evaluate the changes in craniofacial dimensions of newly diagnosed and untreated acromegaly patients, patients with non-functional pituitary adenoma and healthy individuals on Cone Beam Computed Tomography (CBCT).

MATERIAL AND METHODS: 50 newly diagnosed acromegaly patients who did not receive any treatment for acromegaly were included in the study (Group A). Twenty patients with nonfunctional pituitary adenoma (Group B) and 30 healthy individuals were included (Group C). Linear, angular and volumetric measurements were performed.

RESULTS: Mandibular length showed significant difference in acromegaly patients, and maxillar length statistically significant difference was found between the A-B and B-C (p> 0,05), no difference was found between the A-C (p<0,05). SNB and ANB angle was statistically different in all groups, while SNA angle was statistically different between group A-C and B-C. In volumetric measurements, a statistically significant difference was found between groups a-c and groups A-B (p< 0,05), no difference was found between groups B-C (p>0,05).

CONCLUSIONS: CBCT measurements showed that mandibular volume and length were increased in the acromegaly group compared to the group B-C. Present study is the first research that compares acromegaly patients in respect to changes in maxillofacial dimensions.

PMID:35717618 | DOI:10.4317/medoral.25280