[Removal of laryngeal cancer with thyroid cartilage membrane excision and repair of laryngeal cavity with outside thyroid cartilage membrane flap of healthy side: oncologic and functional outcomes].

OBJECTIVE: To study the efficacy and feasibility of removal of laryngeal cancer with thyroid cartilage membrane excision and repair of laryngeal cavity by the outside thyroid cartilage membrane flap of healthy side. METHODS: A total of 28 patients were reviewed who underwent the removal of laryngeal cancer with thyroid cartilage membrane excision combined with the repair of laryngeal cavity by the outside thyroid cartilage membrane flap in our hospital between 2005 and 2011. Respiratory function, swallowing function, and voice quality of patients after surgery were evaluated. Survival and recurrence were observed with the follow up of five years. RESULTS: The decannulation rate was 96.4%. Aspiration rate was 10.7%, but aspiration was completely revolved by swallowing training in the patients. All patients had the voice quality required for communication although they complained of hoarseness after surgery. Tumor recurrence was found in one patient and cervical lymph node metastasis in 2 patients. The three-year and five-year survival rates were 89.3% and 85.7% respectively. CONCLUSION: This surgical procedure was applicable in some of patients with T2 laryngeal cancer, with good laryngeal functions after surgery.

Growth responses of broiler chickens to different periods of artificial light.

This study aimed to establish response curves between broiler chicken growth parameters and artificial light periods, as opposed to optimizing a lighting regimen for broiler production. Medium-growing broiler chickens were illuminated for periods of 12, 14, 16, 18, 20, 22, or 24 h each day. The BW of the broilers were significantly influenced by light periods ( < 0.05). Moreover, BW responded to light periods in a linear fashion, suggesting that long light periods result in greater BW. In addition, a linear relationship was found between feed intake and light periods. However, the relationship between shank length and light period was quadratic. When the light period was too short (12 h) or too long (24 h), the light stimulus did not enhance shank growth in the broiler chickens ( < 0.05). In addition, a quadratic relationship between the quantity of abdominal adipose tissue and light period suggested that the quantity of abdominal adipose decreases when the period of the light stimulus was too short or too long ( < 0.05). Moreover, a broken-stick analysis suggested that the triiodothyronine (T3) concentration in the blood was minimally affected beyond 18 h ( = 0.267), although a quadratic relationship was found between the period (from 18 to 24 h) and T3 concentrations in the blood. The response curves established in the present study will be valuable for designing future lighting regimes for medium-growing broiler strains.