Objective To investigate the correlation between left ventricular remodeling and systolic function by mid-wall fractional shortening(mFS).Methods 51 cases of hypertension and 47 cases of healthy volunteers were enrolled and systolic parameters were measured as ejection fraction(EF), fractional shortening(FS) and mFS. Acorrding to left ventricular remodeling parameteres inclulding LVMI and RWT, hypertension group was divided into four subgroups. The correlation among these parameters were analyzed.Results Thicker left ventricular wall and lower mFS in patient with hypertension compaired with those in controll (P<0.05). There were negative correlation between mFS and RWTr=-0.42, P<0.05) and positive correlation between mFS and LVMI r=-0.67, P<0.01).Conclusion mFS is a valuable parameter compared with traditional parameteres such as EF and FS. There is a linear association between parameteres of ventricular remodeling and systolic function assessed by mFS in early stage of hypertension.

Objective To explore the feasibility and efficiency of minimally invasive video-assisted thy-roidectomy on thyroid microcarcinoma, and sum up the experiences. Methods 9 patients with thyroid microcarci-noma who underwent the minimally invasive video-assisted thyroidectomy from Jan 2006 to Feb 2009, were retro-spectively studied. Results All of the patients, except 1 case converting to open thyroidectomy, underwent the minimally invasive video-assisted thyroidectomy successfully. The subcutaneous hydrops occurred in 1 patient. The skin burns around the incisions occurred in 1 patient. There were no complications of recurrent laryngeal nerve injuries, neck hematoma, hypocalcemia, or superior laryngeal nerve injuries. The follow-up period of 15 cases were from 3 months to 37 months. There were no evidences of recurrence and metastasis by both postopera-five ultrasonic/CT examination and radioiodine scintigraphy. Conclusions The minimally invasive video-assisted thyroidectomy is safe and feasible (similar to the traditional thyroidectomy), of gratifying cosmetic results, for low-risk differentiated thyroid microcarcinoma without lymph node metastasis. For the median-risk or high-risk, more patients, comparative studies and long follow-ups are necessary to draw definitive conclusions in terms of its recurrence and survival rate.