Αρχειοθήκη ιστολογίου

Πέμπτη 9 Νοεμβρίου 2017

Nuclear IGF-1R predicts chemotherapy and targeted therapy resistance in metastatic colorectal cancer



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Combining DNA damaging therapeutics with immunotherapy: more haste, less speed



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Neutrophils: driving progression and poor prognosis in hepatocellular carcinoma?



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BPIFB1 (LPLUNC1) inhibits migration and invasion of nasopharyngeal carcinoma by interacting with VTN and VIM



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Favourable prognostic role of histological regression in stage III positive sentinel lymph node melanoma patients



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IGF-1R: SUMO-ing its weight in chemoresistant colorectal cancer



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A new panel of pancreatic cancer biomarkers discovered using a mass spectrometry-based pipeline



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Tumour-infiltrating inflammatory and immune cells in patients with extrahepatic cholangiocarcinoma



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GKI Issues Allergy Alert On Undeclared Milk In Dark Chocolate Almond Bark

Germack Roasting Co, is recalling its 5 ounce and 1lb packages of Germack Dark Chocolate Almond Bark because they may contain undeclared milk. People who have allergies to milk run the risk of serious or life-threatening allergic reaction if they consume these products.

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Reconstruction of preauricular soft tissue defects using a superiorly based rotation advancement scalp flap - A novel approach to the surgical treatment of preauricular sinuses

No funding was required for this study and the authors have no conflict of interests to declare.

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Change in reimbursement and costs in German oncological head and neck surgery over the last decade: ablative tongue cancer surgery and reconstruction with split-thickness skin graft vs. microvascular radial forearm flap

Abstract

Objectives

Defects after ablative tongue cancer surgery can be reconstructed by split-thickness skin grafts or free microvascular flaps. The different surgical options may influence costs, reimbursement, and therefore possible profits. Our goal was to analyze the development of these parameters for different procedures in head and neck reconstruction in Germany over the last decade.

Materials and methods

After tumor resection and neck dissection of tongue cancer, three different scenarios were chosen to calculate costs, reimbursement, length of stay (LoS), and profits. Two options considered were reconstruction by split-thickness skin graft with (option Ia) and without (option Ib) tracheotomy. In addition, we analyzed microvascular reconstruction with radial forearm flap (option II). Furthermore, unsatisfactory results after options Ia and Ib may make secondary tongue plastic with split-thickness skin grafting necessary (option I+). The calculations were performed considering the German Diagnosis Related Group (DRG) system and compared to the specific DRG cost data of 250 German reference hospitals.

Results

The overall average length of stay (aLoS) declined from 16.7 to 12.8 days with a reduction in every option. Until 2011, all options showed similar accumulated DRG reimbursement. From 2012 onwards, earnings almost doubled for option II due to changes in the DRG allocation. As was expected, the highest costs were observed in option II. Profits (reimbursement minus costs) were also highest for option II (mean 2052 €, maximum 3630 Euros in 2015) followed by options Ia (765 €) and Ib/I+ (681 €). Average profits over time would be 17 to 19% higher if adjusted for inflation.

Conclusions

We showed the development of the DRG allocation of two commonly used methods of reconstruction after ablative tongue cancer surgery and the associated LoS, reimbursement, costs, and profits. As expected, the highest values were found for microvascular reconstruction. Microvascular reconstruction may also be the primary choice of treatment from a medical point of view. However, prolonged operation times, intensive care, and hospital stay in connection with complex microvascular operations can easily turn profits into losses as opposed to the results of simple, reliable, and fast split-thickness skin grafting. The inflation rate influences profits in reimbursement systems where costs are based on a previous period of time.

Clinical relevance

Surgeons find themselves daily in an area of conflict between economic interests and medical decision-making. Due to its multidimensional aspects, the choice of the reconstructive technique should be primarily based on the best medical care for the patient. But there should also be awareness of the economic risk of all three surgical procedures.



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Boomerang-shaped vs. shield-shaped chondroperichondrial cartilage grafts for type 1 tympanoplasty in children: A study of 121 patients

Abstract Many techniques and graft materials have been used for the reconstruction of the tympanic membrane. We conducted a retrospective study to compare anatomic and functional outcomes of type 1 tympanoplasty that we performed with boomerang-shaped chondroperichondrial cartilage grafts (BSGs) and shield-shaped chondroperichondrial cartilage grafts (SSGs) in pediatric patients. Our study population was made up 121 patients-61 boys and 60 girls, aged 7 to 16 years (mean: 12.4)-who had undergone a type 1 tympanoplasty. Patients were divided into two groups according to the grafting technique used; there were 59 patients in the BSG group and 62 patients in the SSG group. Ear examinations were performed at postoperative months 3, 6, 12, and 24, and pure-tone average (PTA) for air-conduction threshold values and air-bone gaps (ABGs) were evaluated at 0.5, 1.0, 2.0, and 4.0 kHz at the same visits. We also investigated the impact of the graft material on functional graft success and intergroup differences (if any) in surgical success. Mean postoperative follow-up periods were 30.5 and 30.2 months in the BSG and SSG groups, respectively. We found that the success rates for tympanic membrane reconstruction were not significantly different in the two groups (91.5 and 88.7%). Postoperatively, the mean PTA and ABG values in both groups at 3, 6, 12, and 24 months were significantly lower than the preoperative values (p < 0.05). There were no significant differences in mean PTA values between the two groups at 3, 6, 12, and 24 months. However, the extent of the decrease in PTA values in the BSG group at 3 months was significantly greater than that of the SSG group (p < 0.05). There were no significant differences in mean ABG values between the two groups at 3, 6, and 12 months, but at 24 months, the value was significantly higher in the BSG group (p < 0.05). Finally, the extent of the decrease in ABG in the BSG group at both 3 and 6 months was significantly greater than that of the SSG group (p < 0.05). We conclude that the BSG procedure is a reliable and safe method of performing pediatric tympanoplasty.

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Pediatric sinonasal desmoid tumor

Desmoid-type fibromatosis is clinically characterized by a tendency for local recurrence but no metastatic potential.

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Myopericytoma of the neck originating in the middle scalene muscle: A case report

Mark B. Chaskes, MD, MBA; John W. Bishop, MD; Matthew Bobinski, MD, PhD; D. Gregory Farwell, MD

Abstract

We report a case of myopericytoma of the neck. A 23-year-old woman noticed a small, nontender mass in her left supraclavicular fossa. The mass had grown over a period of 5 months, prompting her to seek evaluation. On examination, no motor or sensory deficits were present. Imaging suggested that a mass had originated in the middle scalene muscle. Computed-tomography-guided core needle biopsy demonstrated a spindle-cell neoplasm with smooth-muscle differentiation. Complete surgical excision was performed. Histopathologic and immunohistochemical evaluations of the tissue sample suggested a myopericytoma. Myopericytoma is an extremely rare tumor of the head and neck. To the best of our knowledge, this is the first reported case of a myopericytoma originating in a scalene muscle.

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Management of benign middle ear tumors: A series of 7 cases

Z. Jason Qian, MD; Amy M. Coffey, MD; Kathleen M. O'Toole, MD; Anil K. Lalwani, MD

Abstract

Benign middle ear tumors represent a rare group of neoplasms that vary widely in their pathology, anatomy, and clinical findings. These factors have made it difficult to establish guidelines for the resection of such tumors. Here we present 7 unique cases of these rare and diverse tumors and draw from our experience to recommend optimal surgical management. Based on our experience, a postauricular incision is necessary in nearly all cases. Mastoidectomy is required for tumors that extend into the mastoid cavity. Whenever exposure or hemostasis is believed to be inadequate with simple mastoidectomy, canal-wall-down mastoidectomy should be performed. Finally, disarticulation of the ossicular chain greatly facilitates tumor excision and should be performed early in the procedure.

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A novel etiology for pneumolabyrinth after temporal bone fracture without otic capsule involvement

Thomas J. Muelleman, MD; Vidur Bhalla, MD; Hinrich Staecker, MD, PhD

Abstract

Pneumolabyrinth has been considered an indicator of otic capsule involvement in temporal bone fractures. We present a novel theory for the etiology of pneumolabyrinth in a trauma patient without an otic capsule fracture: passage of intrathecal air into the labyrinth. Our patient experienced transient bilateral pneumolabyrinth after head trauma due to a motor vehicle collision. The patient was noted to have extensive pneumocephalus and a unilateral temporal bone fracture that spared the otic capsule. Initial computed tomography (CT) scans demonstrated air in the cochlea and both internal auditory canals. A high-resolution CT scan 6 hours later showed resolution of this air. Pneumolabyrinth may not be a sensitive indicator of otic capsule involvement in temporal bone fractures. In addition to middle ear sources, air in the labyrinth can also plausibly originate intrathecally, especially in the setting of pneumocephalus.

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Guidelines for radiographic imaging of cranial neuropathies

Aliasgher Khaku, BS; Vijay Patel, BS; Thomas Zacharia, MD; David Goldenberg, MD; Johnathan McGinn, MD

Abstract

Disruption of the complex pathways of the 12 cranial nerves can occur at any site along their course, and many, varied pathologic processes may initially manifest as dysfunction and neuropathy. Radiographic imaging (computed topography or magnetic resonance imaging) is frequently used to evaluate cranial neuropathies; however, indications for imaging and imaging method of choice vary considerably between the cranial nerves. The purpose of this review is to provide an analysis of the diagnostic yield and the most clinically appropriate means to evaluate cranial neuropathies using radiographic imaging. Using the PubMed MEDLINE NCBI database, a total of 49,079 articles' results were retrieved on September 20, 2014. Scholarly articles that discuss the etiology, incidence, and use of imaging in the context of evaluation and diagnostic yield of the 12 cranial nerves were evaluated for the purposes of this review. We combined primary research, guidelines, and best practice recommendations to create a practical framework for the radiographic evaluation of cranial neuropathies.

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A controlled comparison of auditory steady-state responses and pure-tone audiometry in patients with hearing loss

Raman Wadhera, MS; Sharad Hernot, MS; Sat Paul Gulati, MS; Vijay Kalra, MS

Abstract

We performed a prospective interventional study to evaluate correlations between hearing thresholds determined by pure-tone audiometry (PTA) and auditory steady-state response (ASSR) testing in two types of patients with hearing loss and a control group of persons with normal hearing. The study was conducted on 240 ears-80 ears with conductive hearing loss, 80 ears with sensorineural hearing loss, and 80 normal-hearing ears. We found that mean threshold differences between PTA results and ASSR testing at different frequencies did not exceed 15 dB in any group. Using Pearson correlation coefficient calculations, we determined that the two responses correlated better in patients with sensorineural hearing loss than in those with conductive hearing loss. We conclude that measuring ASSRs can be an excellent complement to other diagnostic methods in determining hearing thresholds.

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"Live" tinnitus

Chia-Chun Liu, MD; Ming-Yee Lin, MD

Insects should be killed before removal with instrumentation, irrigation, or suction.

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Laryngeal hemangioma presenting as a laryngocele

Kevin Shaigany, MD; Sidrah M. Ahmad, MD; Nausheen Jamal, MD

Laryngeal hemangiomas and laryngoceles share similar characteristics and should be considered in the differential diagnosis.

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