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Τρίτη 30 Νοεμβρίου 2021

Migration of Ventriculoperitoneal Shunt to Uterus In A Child: A Case Report

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J Pediatr Adolesc Gynecol. 2021 Nov 26:S1083-3188(21)00343-0. doi: 10.1016/j.jpag.2021.11.004. Online ahead of print.

ABSTRACT

BACKGROUND: Ventriculo-peritoneal shunt (VPS) is usually placed inside the peritoneal cavity for cerebrospinal fluid drainage. Rarely, it can migrate to various pelvic visceral organs. Inside the pelvis, the distal end of the shunt can perforate anywhere from the uterus or adnexa to the vulva and migration through the uterus is extremely rare.

CASE: A three-and-a-half-year-old girl presented with CSF leak through the vagina following uterine perforation by VPS. The diagnosis was made with an ultrasound. Her symptoms resolved following revision surgery.

CONCLUSION: In a patient with a VPS in situ, presenting with a watery fluid leak through vagina, perforation of fornix or uterus must always be kept in mind. Timely diagnosis and intervention can result in the prevention of complications.

PMID:34843976 | DOI:10.1016/j.jpag.2021.11.004

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Geographic disparities in head and neck cancer survival

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Abstract

Purpose

To examine the association between distance to care-center and urban–rural residence on 5-year overall survival (OS) from head and neck cancer (HNC).

Materials and methods

Five-year OS was retrospectively measured from date of initial diagnosis for patients with HNC treated at a single tertiary care center. Distances were calculated based on ZIP code of patient's residence and care center. Multilevel Weibull regression was used to adjust for confounders and identify disparities in 5-year all-cause mortality.

Results

A total of 670 patients included in study. Multivariable analysis revealed older age or late-stage cancer at diagnosis, and HPV negative status were associated with poorer OS. Patients residing in isolated small rural town (HR = 2.20, p = 0.015) or small rural town (HR = 2.07, p = 0.015) had lower OS. Distance to care center was not associated with OS (HR = 0.996, p = 0.11).

Conclusions

Greater rurality was associated with poorer OS among HNC patients in Upstate New York.

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Heads up reconstructive microsurgery: Utilisation of the three-dimensional microscope in microvascular procedures

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J Plast Reconstr Aesthet Surg. 2021 Nov 15:S1748-6815(21)00575-1. doi: 10.1016/j.bjps.2021.11.036. Online ahead of print.

ABSTRACT

BACKGROUND: Since the earliest use of microscopes in surgery, several modifications have been made to improve the ergonomics of movement and posture, increase the resolution, and expand the visual field. The three-dimensional microscopes are latest innovation in this field. Despite the wider use of 3D microscopes in other specialities, their use in the reconstructive microsurgery in the United Kingdom is still limited. Reconstructive microsurgeons are highly skilled surgeons that are trained to operate utilising the microscope for long hours. This poses an occupational risk with a specific pattern of work-related conditions.

AIMS AND METHODS: We aim in this report to demonstrate our experience utilising 3D microscopes in small cohort of patients matched to a control of patients operated utilising the traditional microscopes. Patients were matched by age, comorbidities, oncologic procedures. This was complemented by a survey completed by the operating surgeons.

RESULTS: Nine patients were included in each group. There was no significant difference in operative or ischemia time and no significant post-operative complications in both groups. The surgeons reported better ergonomics, improved staff engagement, and a better teaching experience when utilising the 3D microscopes compared to traditional microscopes.

CONCLUSION: The utilisation of the 3D microscopes in reconstructive microsurgery has shown to provide comfort, improve ergonomics of movement and posture without significant clinical implications in this series.

PMID:34844881 | DOI:10.1016/j.bjps.2021.11.036

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Proximal tibial dimensions in a formalin-fixed neonatal cadaver sample: an intraosseous infusion approach

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Surg Radiol Anat. 2021 Nov 29. doi: 10.1007/s00276-021-02843-1. Online ahead of print.

ABSTRACT

PURPOSE: Methods to administer intramedullary medication and fluid infusion in both adults and children date to the early twentieth century. Studies have shown that intraosseous access in the proximal tibia is ideal for resuscitation efforts as fewer critical structures are at risk, and neither is the blood flow to the lower limbs compromised. Insertion of a needle in children you nger than 5 years does have the risk to damage to the epiphyseal growth plate. Therefore, the aim of this study was to determine the ideal intraosseous insertion site distal to the epiphyseal growth plate in neonates.

METHODS: The samples consisted of both the left and right sides of 15 formalin-fixed neonatal cadavers. The dimensions were measured on the superior surfaces of each section, anteromedial border, cortical thickness, and medullary space.

RESULTS: The most desirable location to gain vascular access is at 10 mm inferior to the tibial tuberosity.

CONCLUSION: The smallest cortical thickness (1.32 mm), the largest medullary space (4.50 mm), and the largest anteromedial surface (7.72 mm) were observed at 10 mm inferior to the tibial tuberosity. It is imperative that health care professionals are familiar with the osteological sites that could be safely used for an intraosseous infusion procedure.

PMID:34845509 | DOI:10.1007/s00276-021-02843-1

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The effects of cigarette smoking and nicotine on the therapeutic potential of mesenchymal stem cells

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Histol Histopathol. 2021 Nov 30:18400. doi: 10.14670/HH-18-400. Online ahead of print.

ABSTRACT

Due to their immunoregulatory properties and capacity for multi-lineage differentiation, mesenchymal stem cells (MSCs) have been used as new therapeutic agents in regenerative medicine. Numerous lifestyle habits and behavioral risk factors may modulate metabolic and cell growth signaling pathways in MSCs, affecting their phenotype and function. Accordingly, identification of these factors and minimization of their influence on viability and function of transplanted MSCs may greatly contribute to their better therapeutic efficacy. A large number of experimental and clinical studies have demonstrated the detrimental effects of cigarette smoke and nicotine on proliferation, homing, chondrogenic and osteogenic differentiation of MSCs. Cigarette smoke down-regulates expression of chemokine receptors and modulates activity of anti-oxidative enzyme s in MSCs, while nicotine impairs synthesis of transcriptional factors that regulate the cell cycle, metabolism, migration, chondrogenesis and osteogenesis. In this review article, we summarize current knowledge about molecular mechanisms that are responsible for cigarette smoke and nicotine-dependent modulation of MSCs' therapeutic potential.

PMID:34845711 | DOI:10.14670/HH-18-400

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Association Between Insurance Type and Outcomes of Reconstructive Head and Neck Cancer Surgery

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Objectives/Hypothesis

Although the benefits of expanding health insurance coverage are clear, there are limited studies comparing the different types of insurance. This study aims to determine the association between insurance type and outcomes in patients with head and neck cancer undergoing reconstructive surgery in the United States.

Methods

Population-based cross-sectional study of the 2012–2014 National Inpatient Sample. We identified 1,314 patients with head and neck cancers undergoing tumor ablative surgery followed by pedicled or free flap reconstruction of oncologic defects. Insurance type was classified as private, Medicare, Medicaid, self-pay, or other. The primary outcome was extended length of stay (LOS), defined as greater than 14 days, which represented the 75th percentile of the study sample. Secondary outcomes included acute medical complications, surgical complications, morbidities, and costs. Analyses were adjusted for gender, geographic location, and various medical comorbidities.

Results

In univariate analysis, insurance type was associated with extended LOS (P = .001), medical complications (P = <.001), and mortalities (P = .020). After controlling for other covariates in the multivariate analysis, compared to private insurance, Medicare and Medicaid were both associated with significantly higher odds of extended LOS (adjusted odds ratio [OR] [95% confidence interval (CI)] = 1.73 [1.09–2.76] and 2.22 [1.38–3.58], respectively). Medicare was associated with significantly higher odds of medical complications, but Medicaid was not (adjusted OR [95% CI] = 1.53 [1.02–2.31] and 1.64 [0.97–2.78], respectively).

Conclusions

Medicaid and Medicare were independently associated with extended LOS after reconstructive head and neck cancer surgery. Medicare was associated with higher rates of medical complications. Efforts to address LOS should target care planning and coordination.

Level of Evidence

NA Laryngoscope, 2021

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