No abstract

Nasal tip support is an important factor to be considered in rhinoplasty surgery. There are several techniques for improving tip support. Caudal extension graft (CEG) and columellar strut with plumping graft (CSPG) are two methods in rhinoplasty surgery. The final goal of this experimental study is to find the most effective method for tip correction among patients with tip ptosis. In this study, we compare two different methods which are used for the tip correction among patients who suffer from acute nasolabial angle (NLA) and columellar retraction. We performed a randomized clinical trial to compare correction ratio of NLA and columellar show obtained via CEG and CSPG methods. Standardized photographs were taken before the surgery and 12 months after the surgery to compare results between two groups. The mean post-operation NLA was 112.55° in CEG and 104.17° in CSPG (p value < 0.001). Correction ratio of NLA was 22.26° in CEG and 13.77° in CSPG (p value < 0.001). The difference in the mean and the correction ratio of NLA were statistically significant in two groups. The mean post-operation columellar show was 3.75 mm in CEG and 3.44 mm in CSPG (p value < 0.083). The correction ratio of columellar show was 1.76 mm in CEG and 1.20 mm in CSPG (p value < 0.007). The difference in the correction ratio of the two groups was statistically significant. Our study reveals that both techniques properly improve NLA and columellar show, however, CEG is a more stable method in patients with tip ptosis.

The proposed technique can help a surgeon to select a proper plan and to evaluate the success of the surgery.

Background: This study aimed to investigate the epidemiology of basal cell carcinoma (BCC) and the probability of having another lesion in patients diagnosed with BCC. Methods: This descriptive-analytical study was conducted from 2015 to 2017, based on the data from patients with definitive diagnoses of BCC in two university hospitals in Birjand. In this study, 85 patients with BCC were selected based on pre-defined inclusion criteria and then divided into two groups, including single and subsequent asynchronous lesions in another anatomic area. In this study, the information was collected by census method from diagnosed patients two years after surgery. The subsequent lesions in other anatomical areas were investigated, then tumor risk factors were compared in the two groups. Results: The mean age of the patients was 67.83 ± 12.29, and the youngest and the oldest patients were 38 and 92 years old, respectively. Among the studied patients, 75.3% had a history of sun exposure. The most common occupations of the patients were farmer, rancher, and housekeeper. Head and neck regions were involved in 96.5%. The patients with subsequent asynchronous BCC in another facial skin region were 10.6% (CI95: 4.06 - 17.14). These patients have been subject to several simultaneous risk factors in their medical history; most of them were farmers older than 65 years. Two patients experienced three lesions in three different anatomical regions at different times. There was no statically significant difference between the two groups regarding mean age (P = 0.47), gender (P = 0.73), pathologic subtype (P = 0.06), and other risk factors (P > 0.05). Conclusions: This study confirms the likelihood of having a subsequent lesion in other anatomical regions in patients diagnosed with BCC. Patients with a history of BCC require prolonged follow-up because of the probability of new BCC developing.