Objective To investigate clinical efficacy of single-port thoracoscopy combined with small incision surgical stabilization of rib fractures(SSRF)in the treatment of multiple rib fractures.Methods A retrospective comparison was carried out on clinical data of 73 patients who underwent multiple rib fractures surgery in our hospital from August 2023 to November 2024.Among them,31 patients underwent single-port thoracoscopy combined with small incision SSRF(thoracoscopic group),while 42 patients underwent traditional open SSRF by using small incision muscle-preserving technique(open group).The two groups were compared in terms of intraoperative blood loss,operation time,total chest tube drainage volume,pain relief time,postoperative hospital stay,postoperative complications,incision healing grade,and stability of internal fixation.Results Both groups successfully completed the surgery and were discharged.Compared to the open group,the thoracoscopic group had less intraoperative blood loss[(67.9±26.7)ml vs.(96.1±38.3)ml,t=-3.508,P=0.001],shorter pain relief time[(59.5±12.7)h vs.(67.9±13.9)h,t=-2.647,P=0.010],shorter postoperative hospital stay[(9.0±2.2)d vs.(10.3±2.5)d,t=-2.332,P=0.023],and better incision healing grade(Z=-2.867,P=0.004).The open group was superior to the thoracoscopic group in terms of operation time[(82.7±20.4)min vs.(116.6±30.6)min,t=5.350,P=0.000],total drainage volume of the chest tube[(417.5±116.5)ml vs.(575.2±191.4)ml,t=4.064,P=0.000],and incidence of encapsulated pleural effusion(2.4%vs.22.6%,χ2=5.532,P=0.019).There was no significant difference in the incidence of atelectasis and pulmonary infection between the two groups(P>0.05).All the patients were followed up for3-12 months after surgery,with an average of 6 months.They all recovered their ability to work within 3 months after surgery,with no obvious symptoms such as chest pain or tightness,no chest collapse or deformity,and no displacement or detachment of internal fixation devices.Conclusion Single-port thoracoscopy combined with small incision SSRF is safe and feasible,and is especially suitable for posterior rib fractures that are difficult to expose and covered by the scapula or deep paraspinal rib fractures of the erector spinae muscle.

Objective To investigate clinical efficacy of single-port thoracoscopy combined with small incision surgical stabilization of rib fractures(SSRF)in the treatment of multiple rib fractures.Methods A retrospective comparison was carried out on clinical data of 73 patients who underwent multiple rib fractures surgery in our hospital from August 2023 to November 2024.Among them,31 patients underwent single-port thoracoscopy combined with small incision SSRF(thoracoscopic group),while 42 patients underwent traditional open SSRF by using small incision muscle-preserving technique(open group).The two groups were compared in terms of intraoperative blood loss,operation time,total chest tube drainage volume,pain relief time,postoperative hospital stay,postoperative complications,incision healing grade,and stability of internal fixation.Results Both groups successfully completed the surgery and were discharged.Compared to the open group,the thoracoscopic group had less intraoperative blood loss[(67.9±26.7)ml vs.(96.1±38.3)ml,t=-3.508,P=0.001],shorter pain relief time[(59.5±12.7)h vs.(67.9±13.9)h,t=-2.647,P=0.010],shorter postoperative hospital stay[(9.0±2.2)d vs.(10.3±2.5)d,t=-2.332,P=0.023],and better incision healing grade(Z=-2.867,P=0.004).The open group was superior to the thoracoscopic group in terms of operation time[(82.7±20.4)min vs.(116.6±30.6)min,t=5.350,P=0.000],total drainage volume of the chest tube[(417.5±116.5)ml vs.(575.2±191.4)ml,t=4.064,P=0.000],and incidence of encapsulated pleural effusion(2.4%vs.22.6%,χ2=5.532,P=0.019).There was no significant difference in the incidence of atelectasis and pulmonary infection between the two groups(P>0.05).All the patients were followed up for3-12 months after surgery,with an average of 6 months.They all recovered their ability to work within 3 months after surgery,with no obvious symptoms such as chest pain or tightness,no chest collapse or deformity,and no displacement or detachment of internal fixation devices.Conclusion Single-port thoracoscopy combined with small incision SSRF is safe and feasible,and is especially suitable for posterior rib fractures that are difficult to expose and covered by the scapula or deep paraspinal rib fractures of the erector spinae muscle.

This study was aimed to explore a simple and applicable method of separating mature sperms from human testicular tissue for intracytoplasmic sperm injection and embryo transfer. The suspension of human testicular tissue was cultured in 10% human serum albumin and human tubule fluid with different concentrations (0 u/ml; 50 u/ml; 100 u/ml; 150 u/ml; 200 u/ml) of hyaluronidase for 24 h, and then the Percoll gradient centrifugation was processed to separate the sperms; meanwhile the sperms were counted and graded according to their motility. The difference in quality and quantity among the groups and the difference between the groups and the zero-hour culturing group were detected. It was shown that the four hyaluronidase-treated groups contained large quantity and high quality of sperms as compared with the two contrast groups (P<0.01). The groups in the solution of 50 u/ml, 100 u/ml and 150 u/ml concentrations of hyaluronidase had almost the same amount of sperms that displayed higher motility as compared against the sperms in the group treated with 200 u/ml concentration of hyaluronidase (P<0.01). There was no difference between the two contrast groups (P>0.05), or among the groups treated with 50 u/ml, 100 u/ml, and 150 u/ml of hyaluronidase concentration (P>0.05). This method of adopting hyaluronidase with Percoll gradient centrifugation in the process for separating mature sperms from human testicular tissue is applicable. It can increase the quantity and quality of sperms separated from testicular tissue suspensions when adequate concentrations of hyaluronidase is used.
Adult ; Cell Separation ; methods ; Cells, Cultured ; Dose-Response Relationship, Drug ; Humans ; Hyaluronoglucosaminidase ; pharmacology ; Male ; Spermatozoa ; cytology ; Testis ; cytology

Objective To study the effect of indole- 2,3-dione on the content and release of monoamine neurotransmitters in rat brain.Methods The Wistar rats were given indole-2,3-dione (50,200mg?kg~(-1),ip), and the content of acetylcholine(Ach) and dopamine(DA) in corpus striatum were detected two hours later;the releases of DA,5-hydroxy-tryptamine(5-HT) and norepinephrine(NE) in cortex and corpus striatum slices were examined before and after perfusion with the artificial cerebrospinal fluid(ACSF)that contained indole-2,3-dione. Results The rats given indole-2,3-dione were observed higher concentration of Ach and DA in their corpus striatum compared with that in cortex. Moreover the results also showed indole- 2,3-dione promoted the release of DA in cortex and corpus striatum slices. Conclusion Indole-2,3-dione can regulate the balance between Ach and DA release in rat brain.