1.Clinical features of osteonecrosis of jaws after bisphosphonates therapy for bone me-tastasis of breast cancer
Yuxing GUO ; Diancan WANG ; Yang WANG ; Xin PENG ; Chi MAO ; Chuanbin GUO
Journal of Peking University(Health Sciences) 2016;48(1):80-83
Objective:To understand the clinical features of osteonecrosis of the jaw after bisphospho-nates use for therapy of breast cancer patients with bone metastasis.Methods:The cases diagnosed as bisphosphonates-related osteonecrosis of the jaws (BRONJ)were retrospectively analyzed from January 201 1 to August 201 5 in the Peking University School and Hospital of Stomatology,and those breast cancer patients with bone metastasis were selected.The clinical symptoms,imaging characteristics and treatment results were summarized.Results:A total of 1 4 cases of breast cancer patients with bone me-tastasis were selected,with an average age of 60.21 years.The average time of suffering from breast cancer was 9 .77 years,and the average time of bone metastasis and bisphosphonates drugs use was 5 .67 and 3 .29 years individually.There was no patient with systemic application history of hormone therapy, and no history of diabetes.There were 9 patients with tooth extractions history,and the mean time of bone necrosis symptoms was 8.58 months.There were 1 0 cases with bone necrosis occurring on mandi-ble,3 cases on maxilla,and one case with both upper and lower jaws involved.Among the 1 0 patients with surgical treatment,there were 3 cases cured,and 6 cases improved.However,the clinical symp-toms of 2 cases with conservative treatment were significantly aggravated.Conclusion:The medication time between the bisphosphonates use beginning and the occurrence of BRONJ is relatively long.The his-tory of diabetes and long-time hormone use did not exist in this group.Tooth extraction itself does not de-termine the severity of BRONJ.Mandible is the most common site involved by BRONJ.Surgical treatment can alleviate the clinical symptoms of BRONJ with breast cancer to some extent.
2.Investigation of fast filter of ECG signals with lifting wavelet and smooth filter.
Xuefei LI ; Yuxing MAO ; Wei HE ; Fan YANG ; Liang ZHOU
Journal of Biomedical Engineering 2008;25(1):191-195
The lifting wavelet is used to decompose the original ECG signals and separate them into the approach signals with low frequency and the detail signals with high frequency, based on frequency characteristic. Parts of the detail signals are ignored according to the frequency characteristic. To avoid the distortion of QRS Complexes, the approach signals are filtered by an adaptive smooth filter with a proper threshold value. Through the inverse transform of the lifting wavelet, the reserved approach signals are reconstructed, and the three primary kinds of noise are limited effectively. In addition, the method is fast and there is no time delay between input and output.
Algorithms
;
Electrocardiography
;
methods
;
Humans
;
Signal Processing, Computer-Assisted
3.Rare Manifestations of Common Diseases: Middle-Aged Male Polyuria-Headache-Inflammatory Granulomatous Lesions
Yuxing ZHAO ; Lian DUAN ; Wei LYU ; Yong YAO ; Hui YOU ; Wen ZHANG ; Jin MA ; Xinxin MAO ; Huijuan ZHU
JOURNAL OF RARE DISEASES 2023;2(3):359-364
A middle-aged man was presented with poor appetite, polyuria, polydrpsia, and headache. A sellar mass was found, along with total pituitary hypofunction and visual field defect. A biopsy of the lesion via the trans-sphenoidal approach showed inflammatory changes and granuloma formation. However, repeated cerebrospinal fluid and pathogenic examination of the pathological tissue showed no positive indications. The initial diagnosis considered autoimmune hypophysitis, and treatment of glucocorticoids combined with immunosuppressants was administered, which led to a temporary shrinkage of the lesion, but it gradually enlarged subsequently. After multidisciplinary discussion, a high possibility of pituitary tuberculosis infection was decided upon. After standardized anti-tuberculosis treatment was initiated, the lesion reduced noticeably and the patient′s condition improved. Pituitary tuberculosis infection is incredibly rare and extremely easy to misdiagnose. This case was diagnosed and treated in a timely and effective manner through a multidisciplinary approach, highlighting the importance of such an approach in dealing with rare diseases.