Citations

Background: Two-stage subpectoral implant-based breast reconstruction is the most common method for breast reconstruction. Recent advances in surgical techniques and technology have made prepectoral implant-based breast reconstruction feasible. There are limited data on outcomes after prepectoral implant-based breast reconstruction and postmastectomy radiation therapy. Methods: A retrospective review of consecutive patients undergoing immediate two-stage prepectoral implant-based breast reconstruction with postmastectomy radiation therapy was performed. Outcomes of irradiated breasts were compared with nonirradiated breasts in bilateral cases. Results: Ninety-three cases of prepectoral implant-based breast reconstruction in 54 women who underwent immediate two-stage reconstruction (39 bilateral and 15 unilateral) and unilateral postmastectomy radiation therapy were identified. Mean follow-up was 19 months from mastectomy and tissue expander reconstruction and 9 months from implant placement. Crude complication rates in irradiated versus nonirradiated sides were as follows: surgical-site infection, 18.5 percent versus 7.7 percent; seroma, 5.6 percent versus 5.1 percent; mastectomy skin flap necrosis, 1.9 percent versus 2.6 percent; wound dehiscence, 1.9 percent versus 7.7 percent; capsular contracture, 1.9 percent versus 0 percent; hematoma, 1.9 percent versus 2.6 percent; and extrusion, 1.9 percent versus 0 percent. On univariate analysis, there were no risk factors associated with any complication, including radiation therapy, surgical-site infection, unplanned readmissions, and unplanned return to the operating room. To date, reconstruction has been completed in 96 percent of patients, with successful implant-based breast reconstruction in 81 breasts (45 irradiated breasts and 36 nonirradiated breasts). Conclusions: Early data of prepectoral implant-based breast reconstruction in patients with postmastectomy radiation therapy show promising results. Postmastectomy radiation therapy should not be an absolute contraindication to prepectoral implant-based breast reconstruction. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, IV.

Purpose To describe attitudes of first- and second-year U.S. medical students toward value-added medical education, assess their self-reported desire to participate in value-added activities, and identify potentially modifiable factors influencing their engagement. Method The authors conducted a cross-sectional survey of first- and second-year students at nine U.S. medical schools in 2017. Survey items measured students’ attitudes toward value-added medical education (n = 7), desire to participate in value-added activities (n = 20), and factors influencing potential engagement (n = 18). Results Of 2,670 students invited to participate, 1,372 (51%) responded. Seventy-six percent (1,043/1,368) moderately or strongly agreed they should make meaningful contributions to patient care. Students’ desire to participate was highest for patient care activities approximating those traditionally performed by physicians, followed by systems improvement activities and lowest for activities not typically performed by physicians. Factors increasing desire to participate included opportunities to interact with practicing physicians (1,182/1,244; 95%), patients (1,177/1,246; 95%), and residents or fellows (1,166/1,246; 94%). Factors decreasing desire to participate included making changes to the health care system (365/1,227; 30%), interacting with patients via phone or electronic communication (410/1,243; 33%), and lack of curricular time (634/1,233; 51%). Conclusions First- and second-year medical students agree they should add value to patient care, but their desire to participate in value-added activities varies depending on the nature of the tasks. Medical schools may be able to increase students’ desire to participate by enabling face-to-face interactions with patients, embedding students in health care teams, and providing dedicated curricular time.

Background: Activity aprons are commercially available products used to occupy patients with dementia at home or in long-term care facilities. We hypothesized that inpatient use of activity aprons could potentially reduce or eliminate behaviors that result in self-harm, increased nursing supervision, and restraint use in an inpatient hospital setting. Methods: A single-center prospective randomized controlled pilot study was performed from July 2015 to November 2016 comparing activity apron plus standard care versus standard care alone. Consecutively enrolled patients were randomized by stratified randomization using age (cutoff: 80 years) and preexisting diagnosis of dementia or cognitive impairment. Primary outcomes were safety and feasibility of apron use. Secondary outcomes included duration of hospitalization postrandomization and individual nursing assignment (IA), time in restraints, nonphysical restraints use, falls, apron-related complications, dismissal destination, and 30-day hospital readmission. Results: Thirty patients were enrolled, with 13 randomized to apron and 17 randomized to the control group. There was no statistically significant reduction in mean length of hospital stay (15.8 vs 21.5 day; P = .40), duration of IA compared to non-apron control group (6.4 vs 9.1, respectively; P = .39), or antipsychotic medication use (61.5% vs 70.6% in control group; P = .60). No complications secondary to apron use were seen. Conclusions: Activity aprons are a safe addition to the standard of care when managing encephalopathic patients in the inpatient setting. These aprons may have a role as part of a comprehensive complement of interventions to address delirium and encephalopathy in hospitalized patients.

ABSTRACTIntroduction: Multifocal motor neuropathy (MMN) is a motor only, asymmetric onset neuropathy that is relatively treatment‐refractory compared with classic chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) and multifocal acquired demyelinating sensory and motor (MADSAM) neuropathy. Methods: We reviewed 35 patients seropositive for GM1 (monosialo‐asialo [immunoglobulin M, IgM; immunoglobulin G, IgG]) and/or GD1b (disialo [IgG, IgM]) autoantibodies having MMN, classic CIDP, or MADSAM. Immune‐treatment responsiveness and clinical course was compared with antibody negative disease controls. Results: Seventy‐nine percent of seropositives with an initial diagnosis of MMN were immunotherapy responsive compared with 46% of seronegatives (P = 0.045). Eight ganglioside antibody positive MMN patients of 19 (42%) developed sensory findings consistent with MADSAM compared with 3 of 41 (7%) seronegative MMN patients (P = 0.003). MMN and MADSAM patients with ganglioside antibody positivity had more sustained treatment responses (P = 0.03). Discussion: Patients initially diagnosed with MMN seropositive for diverse GM1 autoantibodies appear more likely to have sustained treatment response and evolution to MADSAM. Muscle Nerve 57: 1000–1005, 2018

ABSTRACTIntroduction: In polyradiculoneuropathy‐organomegaly‐endocrinopathy‐monoclonal protein‐skin changes (POEMS) and chronic inflammatory demyelinating polyradiculoneuropathy (CIDP), limb nerve conduction studies (NCSs) are limited in identifying demyelination and in detecting treatment effects in severely affected patients. Blink R1 latency may improve these assessments. Methods: POEMS and CIDP patients who had undergone NCS and blink reflex were identified. Correlations among R1 latency, limb NCS, and neuropathy impairment scores (NIS) were compared. Results: Among 182 patients (124 POEMS, 58 CIDP) who were identified, R1 prolongation (>13 ms) occurred in 64.3% (65.3% POEMS, 62.1% CIDP). R1 prolongation correlated with more severely affected NCS in both POEMS (ulnar CMAP 2.6 mV vs. 4.5 mV, P = 0.001) and CIDP (2.0 mV vs. 6.1 mV, P < 0.001). In severely affected patients (ulnar CMAP ≤0.5 mV [10%:18/182]), R1 (>13 ms) helped establish demyelination. In 31 patients (16 POEMS, 15 CIDP), the R1 latency changes were concordant with NIS changes in 94% of patients with POEMS and 60% of patients with CIDP. Discussion: Blink R1 latencies are valuable in defining demyelination and detecting improvement in severely affected POEMS and CIDP patients. Muscle Nerve 57: E8–E13, 2018

ABSTRACTIntroductionUltrasound is increasingly used as an adjunct in the diagnosis of neuromuscular disease by measuring muscle thickness and echointensity (EI). Reproducibility is limited because of variations in scanning technique and proprietary algorithms that alter EI values.MethodsWe developed a standardized scanning protocol and a portable machine without any postimaging processing. Ten subjects underwent scanning of 6 muscles by 3 sonographers on 2 separate days. One of the sonographers repeated the protocol with 4 different machine/transducer combinations. Gray‐scale values were measured from each image with the use of a region of interest (ROI) box.ResultsCombined intraclass correlation coefficients were 0.92 (intra‐rater), 0.88 (inter‐rater), and 0.96 (inter‐system). The biceps had the highest variability (coefficient of variance [COV] 12.7%), and the medial gastrocnemius had the lowest variability (COV 7.4%).ConclusionsWe demonstrate excellent reliability of a reproducible ultrasound system for gray‐scale analysis of muscle that has potential applicability as a screening tool for neuromuscular disease. Muscle Nerve 56: 408–412, 2017

AbstractBackgroundThe objective of this study was to characterize the degree, pattern, lesion site, and temporal evolution of sudomotor dysfunction in multiple system atrophy (MSA) and to evaluate differences by parkinsonian (MSA‐parkinsonism) and cerebellar (MSA‐cerebellar) subtypes.MethodsAll cases of MSA evaluated at Mayo Clinic Rochester between 2005 and 2010 with postganglionic sudomotor testing and thermoregulatory sweat test were reviewed. Pattern and lesion site (preganglionic, postganglionic, or mixed) were determined based on thermoregulatory sweat test and postganglionic sudomotor testing.ResultsThe majority of the 232 patients were MSA‐parkinsonism (145, 63%). Initial postganglionic sudomotor testing was abnormal in 59%, whereas thermoregulatory sweat test was abnormal in 95% of all patients. MSA‐parkinsonism patients were more likely to have an abnormal thermoregulatory sweat test compared with MSA‐cerebellar (98% versus 90%, P = 0.006) and had a higher mean percentage of anhidrosis (57%) compared with MSA‐cerebellar (48%; P = 0.033). Common anhidrosis patterns were regional (38%) and global (35%). The site of the lesion was preganglionic in 47% and mixed (preganglionic and postganglionic) in 41%. The increase in anhidrosis per year was 6.2% based on 70 repeat thermoregulatory sweat tests performed on 29 patients. The frequency of postganglionic sudomotor abnormalities increased over time.ConclusionsOur findings suggest: (1) sudomotor dysfunction is almost invariably present in MSA and even more common and severe in MSA‐parkinsonism than MSA‐cerebellar; (2) a preganglionic pattern of sweat loss is common in MSA; however, pre‐ and postganglionic abnormalities may coexist; and (3) the increasing frequency of postganglionic sudomotor dysfunction over time suggests involvement of postganglionic fibers or sweat glands later in the disease course. © 2016 International Parkinson and Movement Disorder Society