Perioperative cognition in association with malnutrition and frailty: a narrative review.

Postoperative delirium (POD) is a prevalent clinical entity characterized by reversible fluctuating altered mental status and cognitive impairment with acute and rapid onset a few days after major surgery. Postoperative cognitive decline (POCD) is a more permanent extension of POD characterized by prolonged global cognitive impairment for several months to years after surgery and anesthesia. Both syndromes have been shown to increase morbidity and mortality in postoperative patients making their multiple risk factors targets for optimization.

The Diagnostic Dilemma in Delayed Subarachnoid Hemorrhage: A Case Report.

Introduction: Radiologically negative subarachnoid hemorrhage (SAH) has a low incidence and is associated with good clinical outcomes.

Case Report: We present the case of a 44-year-old male with new-onset headaches, which began one week prior while bike riding. At an outside hospital, he had normal computed tomography head and angiogram.

Complex Resonant Scattering Behavior in the Surface Plasmon Resonance Imaging Microscopy of Single Gold Nanorods.

Diffraction patterns observed in surface plasmon resonance imaging (SPRI) microscopy measurements of single gold nanorods (AuNRs) exhibit a complex behavior at wavelengths near the longitudinal plasmonic resonance band. SPRI microscopy measurements at 814 nm from AuNRs in three samples with resonance extinction maxima at 670, 816, and 980 nm reveal a variety of diffraction patterns with central peaks that are either positive, negative, or biphasic. A unitless ratio parameter (-1 ≤ ≤ 1) is created to describe the distribution of diffraction patterns.

Effects of radiation and MediPort placement on the development of thoracic outlet syndrome.

We present a patient who exemplifies the interplay of factors contributing to the development of venous-type thoracic outlet syndrome. The patient was treated with both radiation and chemotherapy for squamous cell carcinoma in the head and neck region; radiation and chemotherapy have been known to damage the vascular system. Multimodality treatment is necessary to achieve good long-term results in these complex patients.

Endovascular stenting of supra-aortic lesions using a transcarotid retrograde approach and flow reversal: A multicenter case series.

Objective: Endovascular treatment has largely replaced open reconstruction of proximal brachiocephalic and left common carotid ostial arterial stenoses. The objective of this study was to report the technical feasibility and safety of a flow-based embolic protection system in stenting of single and tandem stenotic lesions of supra-aortic arch vessels.

Methods: All cases used flow-based neuroprotection by the ENROUTE Transcarotid Neuroprotection System (Silk Road Medical, Sunnyvale, Calif).