bluuebunny/crossref_metadata_2025_split huggingface dataset:
Does ACDF Utilization and Reimbursement Change Based on Certificate of Need Status?
Authors: Ziino Chason , Bala Abiram , Cheng Ivan 
Published: November 2019

Introduction:
Anterior cervical discectomy and fusion (ACDF) remain an effective treatment option for multiple pathologies of the cervical spine. As the health care economic climate has changed, so have reimbursements with a concomitant push toward outpatient procedures. Certificate of Need (CON) programs were established in response to burgeoning health care costs which require states to demonstrate need before expansion of medical facilities. The impact of this program on spine surgery is largely unknown. The purpose of this study was to examine the impact of CON status on reimbursement and utilization trends of ACDF in both inpatient and outpatient settings.

Materials and Methods:
We queried a combined private payer and Medicare database from 2007 to 2015. All single-level ACDFs were identified. We then split each procedure into those performed in CON versus non-CON states. We then further split each group into the inpatient and outpatient settings. Compound annual growth rate (CAGR) was used to compare utilization and reimbursement trends. Reimbursement was adjusted for inflation using the United States Bureau of Labor Statistics consumer price index.

Results:
A total of 32,727 single-level ACDFs were identified, of which 28,441 were performed in the inpatient setting, and 4286 were performed in the outpatient setting. Reimbursement decreased across all settings, with the most pronounced decrease in the non-CON outpatient setting with an adjusted CAGR of −11.0%. Utilization increased across all groups, although the fastest growth was seen in the outpatient CON setting with a CAGR of 47.7%, and the slowest growth seen in the inpatient non-CON setting at a CAGR of 12.9%.

Conclusions:
ACDF utilization increased most rapidly in the outpatient setting, and CON status did not appear to hinder growth. Reimbursement decreased across all settings, with the outpatient setting in non-CON states most affected. Surgeons should be aware of these trends in the changing health care environment.
The Effect of Metformin on Prognosis in Patients With Locally Advanced Gastric Cancer Associated With Type 2 Diabetes Mellitus
Authors: Seo Ho Seok , Jung Yoon Ju , Kim Ji Hyun , Lee Han Hong , Park Cho Hyun 
Published: November 2019

Objectives:
This study examined the effect of metformin use on the prognosis of gastric cancer patients.

Materials and Methods:
The study population comprised 2187 patients who underwent curative gastrectomy for the treatment of gastric cancer. They were divided into 3 groups: metformin (n=103), non-metformin (n=139), and non-diabetes mellitus (DM) (n=1945) according to their history of type 2 DM and metformin use. Survival, disease recurrence, and the pathologic stage were analyzed.

Results:
Overall survival was better in the metformin group than in the non-DM group (P=0.005). Metformin use was an independent prognostic factor of overall survival, cancer recurrence, and peritoneal recurrence. An effect of metformin use was especially notable in patients with T4 or N0 disease.

Conclusions:
Metformin improves the survival of patients with gastric cancer and type 2 DM.
A Pilot Study of Radiation Therapy in Combination With Pembrolizumab in Patients With Metastatic Renal Cell Cancer
Authors: Lin Jianqing , Song Andrew J. , Hoffman-Censits Jean , Leiby Benjamin E. , Tuluc Madalina , Shaw Colette , Harshyne Larry , Kean Rhonda , Bar-Ad Voichita , Den Robert B. , Hurwitz Mark D. , Louie Jennifer , Philipose Sherin , Deshmukh Sandeep P. , Johnson Jennifer M. , Dicker Adam P. , Hooper Douglas C. , Kelly William K. , Lu Bo 
Published: November 2019

Objectives:
There is no study published regarding the benefit of radiation therapy (RT) in combination with immune checkpoint inhibitors (ICIs) for the treatment of metastatic renal cell cancer (mRCC). This report is part of an exploratory study aiming to determine the immunomodulatory activity of RT alone or in combination with pembrolizumab in solid tumors.

Materials and Methods:
mRCC patients were treated with a combination of RT (8 Gy×1 or 4 Gy×5) followed by pembrolizumab with or without lead-in dose of pembrolizumab. Treatment response was measured based on the modified Response Evaluation Criteria in Solid Tumors criteria. Adverse events were monitored and graded. Pre-RT and post-RT tumor biopsies were obtained to evaluate programmed death-ligand 1 expression. Immune markers from peripheral blood before, during, and after treatment were analyzed using flow cytometry.

Results:
Twelve mRCC patients who progressed on prior antiangiogenic therapy were enrolled. Half had 2 lines of prior therapy. Two patients (16.7%) had partial responses and were on study for 12.4 and 14.5 months. Three patients had stable disease for a period ranging from 4.2 to 10.4 months, whereas 7 patients had progressive disease. Median progression-free survival was 8.6 months and median overall survival was 32.3 months. Three patients had grade ≥3 events (hyperglycemia, thrombocytopenia, transaminitis). Biopsied tissue programmed death-ligand 1 expression and tumor-infiltrating lymphocytes were numerically higher in responders comparing to nonresponders (Modified Proportion Score 45% vs. 30.45%; tumor-infiltrating lymphocytes odds ratio 4.92).

Conclusion:
Combining RT with pembrolizumab in pretreated mRCC is well-tolerated and appears to have comparable efficacy with single-agent nivolumab.
Metastatic Crohn Disease: A Clinicohistological Appraisal From a Tertiary Care Center in India
Authors: Chatterjee Debajyoti , Bhattacharjee Rajsmita , Khullar Geeti , Kumaran Sendhil , De Dipankar , Saikia Uma N. , Radotra Bishan D. 
Published: November 2019

Background:
Granulomatous dermatitis due to noncontiguous involvement of Crohn disease (CD) of the gut has been described as metastatic CD (MCD). MCD is the rarest form of cutaneous manifestations of CD. This study aims to analyze the clinicohistological features of MCD in a tertiary care center of India.

Materials and Methods:
A retrospective review of patients diagnosed clinically and histologically with MCD over past 5 years was performed. Data on cutaneous features, histological findings, and response to treatment were collected.

Results:
Twelve patients (3 men and 9 women) with a mean age of 29 years were identified. All women had vulval involvement in the form of edema (80%), ulceration (60%), and fistula (20%). Among the 3 men, 2 had perineal and scrotal swelling and ulcer, whereas the third patient presented with leg ulcer. Intestinal CD was already diagnosed in 50% patients (5/10) at cutaneous presentation, whereas it was diagnosed subsequently in 30% (3/10) cases. Histological examination revealed nonnecrotizing granulomatous inflammation in the dermis in 11 patients (92%). Additional histological features included eosinophilic infiltrate (58%), panniculitis (33%), and vasculitis (33%). The patients were treated with various combinations of oral prednisolone, metronidazole, minocycline, azathioprine, and subcutaneous adalimumab with partial relief.

Conclusion:
MCD shows a wide spectrum of clinical presentation, with anogenital involvement being the most common. Histology reveals nonnecrotizing granulomas in the dermis in majority of the cases. The diagnosis is extremely challenging in patients without gastrointestinal involvement at presentation, and thus, a high index of suspicion is imperative.
Morphologic, Immunohistochemical, and Molecular Distinction Between Fibroepithelioma of Pinkus and “Fenestrated” Basal Cell Carcinoma
Authors: Russell-Goldman Eleanor , Lindeman Neal I. , Laga Alvaro C. , Hanna John 
Published: November 2019

Abstract:
Fibroepithelioma of Pinkus (FEP) is a rare cutaneous neoplasm with a characteristic fenestrated architecture and a prominent spindle cell stromal component and which invariably pursues an indolent course. The classification of FEP has been much debated since its first description in 1953, with some arguing that it represents a variant of a basal cell carcinoma (BCC) while others view it as a variant of a trichoblastoma. Multiple previous immunohistochemical studies aiming to clarify this issue have yielded conflicting results. To date, there have been no molecular studies of FEP. We identified 16 cases of fenestrated follicular neoplasms and classified them as BCC or FEP based solely on histomorphologic criteria. CK20 immunohistochemistry supported this classification scheme, with FEP showing significantly more CK20-positive Merkel cells than BCC. We then analyzed a subset of these tumors by a targeted next-generation DNA sequencing platform. All the BCC cases harbored pathogenic PTCH1 mutations, confirming the diagnosis. By contrast, none of the FEP cases harbored a PTCH1 mutation or indeed any mutation known to be causally linked to the development of BCC. Our results suggest that FEP can be distinguished from BCC on morphologic, immunohistochemical, and molecular genetic grounds. We argue that FEP is better considered a benign follicular neoplasm and support its classification as a variant of trichoblastoma.
Toddler Sleep Challenges: All in a Day's Work
Authors: Barnes Andrew J. , Kroupina Maria , Perry Nicole , Augustyn Marilyn 
Published: November 2019

CASE:
Leo is a 26-month-old boy who you are seeing for an urgent care visit due to “sleep difficulty,” particularly sleep onset. Since age 1, he screams, hits, and kicks his mother every day, starting after she gets home from work at 5 pm (or before the family's dinnertime on her days off) and escalating over the course of the evening until he “wears himself out” and falls asleep in a crib in his own room around 9 to 10 pm Once asleep, he sleeps well through the night and wakes easily around 7 am in a pleasant mood; his mother leaves for work soon after he awakens. He naps after lunch for 2 to 3 hours on weekdays at an in-home child care with 1 to 2 adult caregivers and 5 other children aged 0 to 5 years. He refuses to nap at home.
Leo goes to bed easily when his father puts him to bed if his mother is not at home, but his mother feels that evenings are the only time she can spend with Leo, and so, she tries to put him to bed most nights. However, because of Leo's behaviors at bedtime with her, she feels inadequate, depressed, and guilty; when she tries to disengage or allow her husband to help, Leo screams, “Mommy, mommy!” and tries to gain access to her and resists his father putting him to bed until his mother returns. Both parents worry that “he would not grow out of this,” and his mother now avoids coming home from work for fear of Leo's behavior. Both parents feel that this situation is causing marital strain.
Leo was born healthy at full-term and is an only child; pregnancy was complicated by hyperemesis gravidarum. Leo has been healthy and meeting developmental milestones. His parents describe his temperament as “like his father at that age,” “easy, but never able to self-soothe,” “intense” in his emotional reactions, persistent, “strong-willed and serious,” and “shy and observant, withdrawn at first and then getting more pleasant after a while” in novel situations. Behaviorally, he engaged in noninjurious head-banging at home when upset between 12 and 15 months; bit children a few times at child care between 20 and 24 months; and lately refuses to share or will push other children at child care every few weeks. His parents recently read a book about parenting “spirited” children but did not find it helpful. What would you do next?
Obstetric complications in pregnancies with life-limiting malformations
Authors: Quaresima Paola , Homfray Tessa , Greco Elena 
Published: November 2019

Purpose of reviewThe implementation of palliative care at birth has led to a significant rise in the number of couples who choose to continue with pregnancies complicated by life-limiting malformations (LLMs). Prenatal counselling and appropriate antenatal/perinatal management in these cases are poorly studied and may pose significant challenges. The purpose of this review is to outline specific obstetric risks and to suggest management for mothers who choose to continue with pregnancies with the most common LLMs.Recent findingsIn pregnancies complicated by LLMs where parents opt for expectant management, clinicians should respect parental wishes, whilst openly sharing potential serious maternal medical risks specific for the identified abnormalities. The focus of both antenatal and perinatal care should be maternal wellbeing rather than foetal survival. Follow-up ultrasound examinations and maternal surveillance should be aimed at achieving timely diagnosis and effective management of obstetric complications. A clear perinatal plan, agreed with the couples by a multi-disciplinary team including a foetal medicine specialist, a neonatologist and a geneticist, is crucial to reduce maternal morbidity.SummaryThis review provides a useful framework for clinicians who face the challenges of counselling and managing cases complicated by LLMs where parents opt for pregnancy continuation.
Self-managed abortion
Authors: Conti Jennifer , Cahill Erica P. 
Published: November 2019

Purpose of review
To review the current state of self-managed or self-induced abortion in the United States and the emerging legal, political, and research questions surrounding this issue.

Recent findings
With the exponential rise of restrictive antiabortion laws in the United States, it has become increasingly difficult to access safe and legal abortion services. One response to this hostile environment for reproductive care access is an increased interest in methods of self-induced or self-managed abortions, primarily by medications sourced outside the medical setting. Medication abortion is established as a safe and effective method of ending a pregnancy. Compared with clinic-based care, the two most pressing concerns regarding the safety of self-managed abortion are that people seeking abortion will incorrectly self-identifying as appropriate candidates and that they will not know or be able to access medical care if needed. There is therefore an increasing need for medical providers to learn about and researchers to evaluate the incidence, safety and efficacy of self-management of abortion. Simultaneously, reproductive law experts must continue to develop and educate on the legal frameworks to protect and decriminalize people seeking self-managed abortion as well as their care providers.

Summary
Emerging research suggests that abortion outside the medical setting, or self-managed abortion, is an overall safe and effective way to end a pregnancy. However, significant legal barriers and stigma remain. The safest environment for self-managed abortion (SMA) is one where accurate information is available, medical care is accessible when needed, and all methods of abortion remain legal.
Hyperbaric Oxygen Preconditioning Can Reduce Postabdominoplasty Complications: A Retrospective Cohort Study
Authors: Friedman Tali , Menashe Shaked , Landau Geva , Sherf Matan , Wiser Itay , Seligman Yaakov , Friedman Mony , Hadanny Amir , Efrati Shai , Heller Lior 
Published: November 2019

Background:Hyperbaric oxygen therapy (HBOT) can improve wound healing and has been found to have positive preconditioning effects in animal models. Among esthetic surgical procedures, abdominoplasty poses the highest rate of postoperative complications. The aim of this study was to evaluate the effect of preoperative HBOT as a preconditioning treatment for expected postsurgical complications.Methods:We conducted a retrospective cohort study among patients who underwent abdominoplasty at our institute and private practice between January 2012 and November 2017. Patients who received preoperative HBOT were compared with patients who did not receive HBOT. Surgical complication data and demographic, preoperative and postoperative data from patient records were collected.Results:The study included 356 patients. Of them, 83 underwent HBOT preoperatively. Using preoperative HBOT, postoperative complications were significantly reduced from 32.6% (89 patients) to 8.4% (7 patients),P<0.001. Moreover, 17 (6.2%) patients in the comparison group and none in the HBOT group experienced necrosis (P= 0.016). In the multivariate analysis, preoperative HBOT was an independent protective factor against postoperative complications (odds ratio, 0.188; 95% CI, 0.082–0.432;P< 0.001). After propensity score matching, the study results remained the same.Conclusions:Preoperative HBOT can reduce postoperative complication rate in abdominoplasty patients. Further prospective studies are necessary to validate the findings and characterize patients who benefit the most from this treatment.
Circadian Rhythm and Glaucoma: What do We Know?
Authors: Ciulla Lauren , Moorthy Meena , Mathew Sunu , Siesky Brent , Verticchio Vercellin Alice C. , Price David , Januleviciene Ingrida , Harris Alon 
Published: November 2019

Purpose:
The current understanding of circadian regulation disorders and their involvement in glaucoma pathophysiology are poorly understood, yet they may have a substantial impact on the onset and progression of glaucoma. Herein, we review and summarize all the available literature on circadian rhythm disorder and glaucoma to uncover the impact on glaucoma risk, and we highlight future research and potential novel targets for glaucoma management.

Materials and Methods:
A review of the relevant literature was performed through PubMed through August 1, 2019.

Results:
Within a normal circadian rhythm, intraocular pressure (IOP) peaks at night, whereas blood pressure (BP) troughs at night. High nocturnal IOP coupled with low nocturnal systemic BP results in low ocular perfusion pressure and potential for unobserved damage to retinal tissues and the optic nerve. Circadian-related melatonin and sleep disorders also result in changes in IOP and ocular perfusion pressure that lead to the progression of glaucoma. In addition, impaired perception of light input due to glaucoma can subsequently lead to abnormal serum levels of melatonin, resulting in circadian rhythm misalignment. This disruption of the circadian rhythm also contributes to sleep and mood disorders, common in individuals with glaucoma. As regards treatment, glaucoma medications that lower nocturnal IOP without influencing nocturnal BP or diminishing circadian variation seem most effective.

Conclusions:
Glaucoma progression is influenced by multiple physiological factors regulated by the circadian rhythm. Progression of the disease may also cause physiological changes that lead to circadian-related issues. Further research is warranted on the diurnal cycle, melatonin-mediated processes, and their influence on glaucoma management.
Evaluating the impact of gabapentinoids on sleep health in patients with chronic neuropathic pain: a systematic review and meta-analysis
Authors: Kapustin Daniel , Bhatia Anuj , McParland Aidan , Trivedi Aditya , Davidson Alexandra , Brull Richard , Singh Mandeep 
Published: November 2019

Abstract
Chronic neuropathic pain (NP) is debilitating and impacts sleep health and quality of life. Treatment with gabapentinoids (GBs) has been shown to reduce pain, but its effects on sleep health have not been systematically evaluated. The objective of this systematic review and meta-analysis was to assess the relationship between GB therapy dose and duration on sleep quality, daytime somnolence, and intensity of pain in patients with NP. Subgroup comparisons were planned for high- vs low-dose GBs, where 300 mg per day or more of pregabalin was used to classify high-dose therapy. Trial data were segregated by duration less than 6 weeks and 6 weeks or greater. Twenty randomized controlled trials were included. Primary outcome measures included pain-related sleep interference and incidence of daytime somnolence. Secondary outcomes included daily pain scores (numerical rating scale 0-10) and patient global impression of change. Significant improvement in sleep quality was observed after 6 weeks of GB treatment when compared with placebo (standardized mean difference 0.39, 95% confidence interval 0.32-0.46 P < 0.001). Increased daytime somnolence was observed among all GB-treated groups when compared with placebo. Treated patients were also more likely to report improvement of patient global impression of change scores. Pain scores decreased significantly in patients both after 6 weeks of treatment (P < 0.001) and in trials less than 6 weeks (P = 0.017) when compared with placebo. Our data demonstrate that GBs have a positive impact on sleep health, quality of life, and pain in patients with NP syndromes. However, these benefits come at the expense of daytime somnolence.
Implications of the putamen in pain and motor deficits in complex regional pain syndrome
Authors: Azqueta-Gavaldon Monica , Youssef Andrew M. , Storz Claudia , Lemme Jordan , Schulte-Göcking Heike , Becerra Lino , Azad Shahnaz C. , Reiners Anselm , Ertl-Wagner Birgit , Borsook David , Upadhyay Jaymin , Kraft Eduard 
Published: November 2019

Abstract
Complex regional pain syndrome (CRPS) develops after-limb injury, with persistent pain and deficits in movement frequently co-occurring. The striatum is critical for mediating multiple mechanisms that are often aberrant in CRPS, which includes sensory and pain processing, motor function, and goal-directed behaviors associated with movement. Yet, much remains unknown with regards to the morphological and functional properties of the striatum and its subregions in this disease. Thus, we investigated 20 patients (15 female, age 58 ± 9 years, right-handed) diagnosed with chronic (6+ months of pain duration) CRPS in the right hand and 20 matched, healthy controls with anatomical and resting-state, functional magnetic resonance imaging. In addition, a comprehensive clinical and behavioral evaluation was performed, where each participant's pain, motor function, and medical history were assessed. Complex regional pain syndrome patients harbored significant abnormalities in hand coordination, dexterity, and strength. These clinical pain- and movement-related findings in CRPS patients were concomitant with bilateral decreases in gray matter density in the putamen as well as functional connectivity increases and decreases among the putamen and pre-/postcentral gyri and cerebellum, respectively. Importantly, higher levels of clinical pain and motor impairment were associated with increased putamen-pre-/postcentral gyri functional connectivity strengths. Collectively, these findings suggest that putaminal alterations, specifically the functional interactions with sensorimotor structures, may underpin clinical pain and motor impairment in chronic CRPS patients.