Obesity does not increase the risk for postoperative complications in head and neck free flap surgery and may be protective in some cases. When assessing a patient's fitness for surgery, underweight status or recent weight loss may suggest a reduced ability to tolerate extensive free flap reconstruction.

Background Opioid-associated ototoxicity is a known complication of opioid exposure, although the mechanism remains unclear. While historically most closely linked to heroin and oxycodone, evolving reports suggest that it may be a class effect of opioids. However, the evidence is limited to case reports. Methods A retrospective review of the New Jersey Poison Center records (ToxiCALL®) identified cases that included both hearing loss and recent opioid exposure between January 1, 1999, and September 21, 2018. Results Forty-one cases were identified, mean age 29.4 years, 51% (n = 21) were male. Reported heroin exposures comprised 51% (n = 22), 18 of which were heroin alone. The next most commonly cited opioids were oxycodone (n = 7), methadone, (n = 4), and tramadol (n = 3). Hearing loss was described as tinnitus in 24% of cases, hypoacusis in 37% of cases, deafness in 29% of cases, and mixed tinnitus/hypoacusis in 10% of cases. Only 34% (n = 14) of cases were associated with a potential hypoxic event.Of the cases that documented resolution data, 21% (n = 4 of 19) reported no improvement at time of hospital discharge. Discussion Opioid-associated ototoxicity appears to be a hypoxia-independent adverse effect since most of the reported cases did not involve a known contributory hypoxic event. It occurs with a wide array of opioids, which supports an opioid receptormediated mechanism. The ototoxic effect may be self-limited in many patients. Conclusion Opioid-associated ototoxicity was most commonly associated with heroin exposure and appeared independent of hypoxic events. Further investigation that clarifies the risk factors and long-term outcomes is needed.

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Background/Aim: Palbociclib is an FDAapproved cyclin-dependent kinase inhibitor for the treatment of advanced breast cancer. Limited information is available regarding the toxicity of palbociclib and concurrent radiation therapy. Case Report: Herein, we report a case of esophageal toxicity in a patient treated with palbociclib and radiation therapy. A 63-year-old woman was treated with palbociclib followed by palliative radiation therapy. The patient presented three days after completing radiation therapy with severe odynophagia, and dysphagia and was found to have grade 2-3 esophageal ulcers. Palbociclib and radiation therapy was held on admission, and a resolution of her symptoms and improvement in her oral intake was noted at which time she was restarted on palbociclib with no further radiation treatment. Conclusion: Caution is advised when patients are undergoing concurrent palbociclib and even low-dose palliative radiation treatment. In these patients, providers should maintain a high index of suspicion for toxicities such as dermatitis or mucositis.