Wednesday, July 6, 2022

Ocular proton therapy, pencil beam scanning high energy proton therapy or stereotactic radiotherapy for uveal melanoma; an in silico study

alexandrossfakianakis shared this article with you from Inoreader

1-s2.0-S1278321822X00048-cov150h.gif

Publication date: Available online 5 July 2022

Source: Cancer/Radiothérapie

Author(s): A. Gerard, M.L. Peyrichon, M. Vidal, C. Barnel, W. Sauerwein, A. Carnicer, G. Angellier, T.M. Mathis, K.K. Mishra, J. Thariat, J. Herault

View on Web

Early Neurocognitive Function With Propofol or Desflurane Anesthesia After Laser Laryngeal Surgery With Low Inspired Oxygen

alexandrossfakianakis shared this article with you from Inoreader
Early Neurocognitive Function With Propofol or Desflurane Anesthesia After Laser Laryngeal Surgery With Low Inspired Oxygen

•End-tidal oxygen fraction decreases to 21% in approximately 6 min after inspired oxygen concentration is set to 30%. •Mini-mental state examination test (MMSE) score increases slightly as being measured repeatedly after surgery. •Postoperative (MMSE) scores are comparable between patients under either propofol- or desflurane-based anesthesia in the first 24 h after surgery. •Only a few patients develop cognitive impairment after short laser surgery even in elderly individuals with low inspired oxygen concentration.


Purpose

The effects of general anesthetics on cognitive impairment are unclear and complicated. Laser laryngeal surgery (LLS) requires the administration of low levels of oxygen, which may increase the risk of desaturation and brain function impairment. This prospective randomized trial aimed to compare the effects of desflurane and propofol-based general anesthesia on the occurrence of early postoperative cognitive decline in elderly patients undergoing LLS.

Methods

Seventy-three patients classified as American Society of Anesthesiologists grade I or II and at least 65 years of age were randomly allocated to receive either desflurane-based (Group D) or propofol-based (Group P) anesthesia during LLS. The standard anesthesia protocol was performed, with a bispectral index between 40 and 60 and a mean arterial pressure within 20% of baseline values. Intraoperative regional oxygen saturation values were recorded. Each patient was assessed using the mini-mental state examination (MMSE) test during the preoperative period (baseline), 30 min after extubation in the postanesthesia care unit, and 1, 3, and 24 h after surgery.

Results

MMSE scores improved slightly in both groups compared to baseline during the early postoperative period, but these increases were not statistically significant. No significant differences were identified in MMSE scores between groups. Only three patients (9.6%) in group D and one patient (3.1%) in group P developed cognitive impairment (p = 0.583).

Conclusion

Low intraoperative inspired oxygen concentration during short-duration LLS did not reduce early postoperative cognitive function in elderly patients. Desflurane or propofol-based anesthesia had similar effects on early neurocognition after LLS.

Level of Evidence

2 Laryngoscope, 2022

View on Web

Impact of Expanding Eligibility Criteria for Cochlear Implantation – Dynamic Modeling Study

alexandrossfakianakis shared this article with you from Inoreader
Impact of Expanding Eligibility Criteria for Cochlear Implantation – Dynamic Modeling Study

The aim of this study was to explore the impact of further expanding unilateral CI criteria in those with severe hearing loss (HL) (61–80 dBHL) in terms of number of CI recipients, costs, quality of life, and cost-effectiveness. Based on its outcomes, the described expansion appears to constitute a cost-effective use of healthcare resources. However, it would require a significant increase in diagnostic, operative and rehabilitative capacity. These quantitative estimates can serve as a basis for wider societal deliberation on the question wheter such an increase can and should be pursued.


Objectives

Eligibility criteria for cochlear implantation (CI) are shifting due to technological and surgical improvements. The aim of this study was to explore the impact of further expanding unilateral CI criteria in those with severe hearing loss (HL) (61–80 dBHL) in terms of number of CI recipients, costs, quality of life, and cost-effectiveness.

Methods

A dynamic population-based Markov model was constructed mimicking the Dutch population in three age categories over a period of 20 years. Health states included severe HL (61–80 dBHL), profound HL (>81 dBHL), CI recipients, and no-CI recipients. Model parameters were based on published literature, (national) databases, expert opinion, and model calibration.

Results

If persons with severe HL would qualify and opt for CI similar to those with profound HL now, this would lead to a 6–7 times increase of new CI recipients and an associated increase in costs (€550 million) and QALYs (54.000) over a 20-year period (incremental cost utility ratio: 10.771 euros/QALY [2.5–97.5 percentiles: 1.252–23.171]). One-way-sensitivity analysis indicated that model outcomes were most sensitive to regaining employment, utility associated with having a CI, and costs of surgery and testing.

Conclusion

Our findings suggest that expanding eligibility for CI to persons with severe HL could be a cost-effective use of resources. Clearly, however, it would require a significant increase in diagnostic, operative, and rehabilitative capacity. Our quantitative estimates can serve as a basis for a wider societal deliberation on the question whether such an increase can and should be pursued.

Level of Evidence

N/A Laryngoscope, 2022

View on Web

Stereotactic body radiotherapy extends the clinical benefit of PD-1 inhibitors in refractory recurrent/metastatic nasopharyngeal carcinoma

alexandrossfakianakis shared this article with you from Inoreader

13014.jpg

Emerging evidence shows that immune checkpoint inhibitors lead to durable responses in a variety of cancers, including nasopharyngeal carcinoma (NPC), however, combination approaches (i.e., stereotactic body r...
View on Web

Collaboration request

Hi there How would you like to earn a 35% commission for each sale for life by selling SEO services Every website owner requires the ...