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find Author "孙广峰" 32 results
  • A case of transcatheter aortic valve replacement of severe aortic stenosis with extremely low left ventricular ejection fraction

    An 82-year-old male was hospitalized complaining of dyspnea for 1 year and aggravating for 2 weeks. He had been treated in other hospitals for several times due to such situation and his symptom could be relieved by diuretics. After admission, he was diagnosed as severe aortic stenosis with extremely low left ventricular contractile function; transthoracic echocardiography showed a left ventricular ejection fraction of only 16.1%. He was classified as a typical case of severe aortic stenosis with “low transaortic velocity and low transaortic gradient” since the transaortic velocity being 2.36 m/s and transaortic gradient being 22/14 mm Hg (1 mm Hg=0.133 kPa). Dobutamine-stress echocardiography suggested that the patient’s left ventricular reserve function was extremely poor and the potential benefits of valvular surgery were finite as the former data being 2.59 m/s and 27/16 mm Hg respectively. In consideration of progressive exacerbation of the patient’s symptoms, we eventually conducted transcatheter aortic valve replacement surgery with the support of extracorporeal membrane oxygenation. His symptoms such as dyspnea disappeared after the surgery and clinical parameters had also got a significant improvement.

    Release date:2020-05-26 02:34 Export PDF Favorites Scan
  • EFFECT OF SCROTAL RECONSTRUCTION WITH FREE SKIN GRAFT ON SPERMATOGENESIS

    Objective To summarize the effect of free skin graft for repairing scrotal avulsion injury, and to investigate the repair impact of the method on spermatogenesis. Methods Between June 2001 and June 2010, 8 cases of complete avulsion injury of the scrotal skin were treated with the free skin graft, aged 22 to 64 years (mean, 29 years). The causes of injury included machine twisting in 4 cases, animal attack in 3 cases, and traffic accident in 1 case. The time between injury and hospital ization was 1-7 hours (mean, 3.5 hours). Five cases compl icated by avulsion of penile skin, 3 by perineal lacerationwith exposure of testes and spermatic cord, and 1 by avulsion of leg skin. Results After 10 days, 80% to 95% grafted skinsurvived. The reconstructed scrotum had shrinks and the wound healed by first intention after dressing change. Eight patients were followed up 12 to 24 months (mean, 16 months). At last follow-up, the patients had relaxed and droop scrotum, and penile erection was normal. Semen qual ity analysis showed: semen volume of 2-6 mL (mean, 4.2 mL); complete l iquefaction with l iquefaction time of 15-30 minutes (mean, 23 minutes); sperm density of (12-27) × 106/mL (mean, 16 × 106/mL); sperm motil ity of 45%-65% (mean, 56%); and sperm motil ity (grade A) of 25%-42% (mean, 32%). Conclusion Complete avulsion of the scrotal skin can be repaired by free skin graft, which has no significant effect on spermatogenesis.

    Release date:2016-08-31 05:42 Export PDF Favorites Scan
  • Effectiveness of fascial tissue flaps and skin flaps with layered sutures for repair of wounds after excision of sacrococcygeal pilonidal sinus

    Objective To investigate the feasibility and effectiveness of fascial tissue flaps and skin flaps with layered sutures for repairing wounds after excision of sacrococcygeal pilonidal sinus. Methods Between March 2019 and August 2022, 9 patients with sacrococcygeal pilonidal sinus were admitted, including 7 males and 2 females with an average age of 29.4 years (range, 17-53 years). The disease duration ranged from 1 to 36 months, with a median of 6 months. There were 7 cases with obesity and dense hair, 3 cases with infection, and 2 cases with positive bacterial culture of sinus secretion. The wound area after excision ranged from 3 cm×3 cm to 8 cm×4 cm, with a depth of 3-5 cm, reaching the perianal or caudal bone; there were 2 cases with perianal abscess formation and 1 case with caudal bone inflammatory edema. Enlarged resection was performed during operation, and the fascial tissue flap and skin flap were designed and excised at both left and right sides of the buttock, ranging from 3.0 cm×1.5 cm to 8.0 cm×2.0 cm. A cross drainage tube was placed at the bottom of the wound, and the fascial tissue flap and skin flap were advanced and sutured in three layers, namely, 8-string sutures in the fascial layer, barbed wire reduction sutures in the dermis, and interrupted skin sutures. Results All 9 patients were followed up 3-36 months, with an average of 12 months. All incisions healed by first intention, and no complication such as incisional dehiscence or infection in the operative area occurred. There was no recurrence of sinus tracts, the shape of gluteal sulcus was satisfactory, both sides of buttocks were symmetrical, local incision scar was concealed, and the shape disruption was minimal. ConclusionFascial tissue flaps and skin flaps with layered sutures for repairing wounds after excision of sacrococcygeal pilonidal sinus can effectively fill the cavity and reduce the incidence of poor incision healing, with the advantages of small trauma and simple operation.

    Release date:2023-04-11 09:43 Export PDF Favorites Scan
  • 游离旋股外侧动脉降支穿支皮瓣联合同种异体肌腱修复儿童足背复合软组织缺损一例

    Release date:2024-03-13 08:50 Export PDF Favorites Scan
  • EFFECT OF EARLY DERMATOPLASTIC REPAIR ON TESTICULAR Survivin PROTEIN EXPRESSION IN JUVENILE PIGS WITH ENTIRE THIRD DEGREE BURN WOUND OF SCROTUM

    【Abstract】 Objective To explore the effect of early scrotal dermatoplasty on spermatogenic functional rehabilitation of testis in juvenile pigs with third degree burn wound of the scrotum. Methods Thirty healthy male Guizhou miniature pigs (weighing 10-15 kg, 2-month-old) were divided into 3 groups: control group (group A, n=10), natural healing group (group B, n=10), and dermatoplasty group (group C, n=10). In group A, the pig was not given any treatment; after third degree burn model of the scrotum was prepared, wounds were not treated in group B and the burn skin was excised and whole hypogastric pachydermia was used for dermatoplasty in group C. At 3 months and 1 year after model preparation, bilateral testis were collected from 5 pigs, respectively. HE staining was performed to observe the effects of different repair method on the morphology of spermatogenic cells and immunohistochemical staining was used to detect Survivin protein expression. Results All pigs survived to the end of the experiment and the wound healed successfully. Histological observation showed that spermatogenic cells had normal shape at all stages and mature sperms were seen in lumens in group A; the thickness of seminiferous epithelium was thinner, having one layer or two layers of spermatogenic cells in group B; the spermatogenic cells in group C were slightly more than that in group B with some spermatids; and in groups B and C, the spermatogenic cells at 1 year were more than that at 3 months. Immunohistochemistry staining showed that the Survivin protein expression in groups B and C was less than in group A, and group B was less than group C, showing significant differences at 3 months and 1 year (P lt; 0.05), but no significant difference between 3 months and 1 year in the same group (P gt; 0.05). Conclusion Dermatoplasty has inhibitory effect on spermatogenic functional rehabilitation of testis. Dermatoplasty can decrease spermatogenic cells and reduce Survivin protein expression, but some spermatids still survive in seminiferous tubule.

    Release date:2016-08-31 04:22 Export PDF Favorites Scan
  • INFLUENCE OF BURYING TESTIS IN INGUINAL REGION ON SPERMATOGENESIS IN RABBIT TO REPAIRSCROTUM DEFECT

    To explore the effect of burying testis in inguinal pocket on spermatogenesis. Methods Sixty New Zealand rabbits of 6-8 months old included 36 males and 24 females, weighing 2.5-2.7 kg. The male rabbits were randomly divided into the experimental group (n=18)and the control group (n=18). The model of repairing skin defect of scrotum were establ ished by burying testes in inguinal region subcutaneously in the experimental group. The rabbits were not treated in the control group. The sperms were collected and the surface temperature of testis was measured in both groups after 8 weeks. Testes biopsies were harvested from 6 rabbits of 2 groups randomly respectively. The apoptosis of spermatogeniccells was detected with TUNEL. The other 12 male rabbits in two groups were fed respectively with female rabbits to observe the fertil ity. Results The semen density and the spermid activity ratio were (237.3 ± 39.7) × 109/L and 76.9% ± 3.8% in the control group, and were (4.7 ± 2.7) × 109/L and 0 in the experimental group respectively; showing statistically significant difference between two groups (P lt; 0.05). The average superficial temperature of testes was (38.02 ± 0.36)℃ in the experimental group and (36.15 ± 0.64) in the control group (P lt; 0.05). TUNEL results showed: The spermatogenic epithel ium became thin and obvious apoptotic spermatogenic cells were found in experimental group; the spermatogenic epithel ium was normal and few apoptotic spermatogenic cells were found in the control group. The apoptotic index (AI) was 89.69% ± 3.76% in the experimental group and 7.73% ± 4.95% in the control group (P lt; 0.05). The Pairing results showed that the female rabbits pairing with male rabbits of the experimental group were all not pregnant, and those of the control group were all pregnant (P lt; 0.05). Conclusion As the same as the scrotum was reconstructed with skin flaps, it will induce the rabbit infertil ity that the testes were buried in inguinal region subcutaneously to repair defect of scrotum skin. The main reason is the excessive apoptosis of spermatogenic cell by the high testes environmental temperature.

    Release date:2016-09-01 09:14 Export PDF Favorites Scan
  • 拇指背侧皮神经营养血管筋膜蒂逆行皮瓣修复拇指指腹缺损

    目的 总结采用拇指背侧皮神经营养血管筋膜蒂逆行皮瓣移位修复拇指指腹缺损的临床效果。 方 法 2006 年1 月- 2008 年3 月,收治拇指指腹缺损24 例。男18 例,女6 例;年龄16 ~ 56 岁,平均26.5 岁。爆炸伤4 例,机器绞伤8 例,电锯伤12 例。缺损范围为2.0 cm × 2.0 cm ~ 3.5 cm × 3.0 cm。受伤至入院时间30 min ~ 7 h。术中切取2.5 cm × 2.5 cm ~ 4.0 cm × 3.5 cm 拇指背侧皮神经营养血管筋膜蒂逆行皮瓣修复缺损。供区宽度lt; 2.8 cm 者直接缝合,gt; 2.8 cm 者于前臂内侧切取皮片游离移植修复。 结果 术后21 例皮瓣完全成活;3 例术后48 h 因静脉回流障碍远端部分坏死,经换药后成活。供区切口顺利愈合,植皮均成活。18 例获随访,随访时间6 ~ 12 个月。皮瓣质地优良不臃肿,外形满意;两点辨别觉为5 ~ 12 mm。 结论 吻合神经的拇指背侧皮神经营养血管筋膜蒂逆行皮瓣外形好,术后感觉恢复满意,是修复拇指指腹缺损的一种理想方法。

    Release date:2016-09-01 09:06 Export PDF Favorites Scan
  • 第二指蹼动脉蒂复合组织瓣修复示中指指背组织缺损

    目的总结应用第2指蹼动脉蒂复合组织瓣修复示、中指指背复合组织缺损的疗效。 方法2007年6月-2013年7月,采用第2指蹼动脉蒂复合组织瓣修复7例机器绞伤导致的示、中指指背复合组织缺损。男5例,女2例;年龄18~55岁,平均36岁。中指3例,示指1例,示、中指均有缺损3例。受伤至入院时间6~36 h,平均15 h。软组织缺损范围2.5 cm×1.0 cm~4.5 cm×1.5 cm。第2指蹼动脉皮瓣切取范围为3.0 cm×1.5 cm~6.0 cm×2.0 cm。供区均直接缝合。 结果术后7例皮瓣均完全成活,供、受区切口均Ⅰ期愈合。患者均获随访,随访时间11~13个月,平均12个月。皮瓣外形良好,末次随访时根据中华医学会手外科学会上肢部分功能评定试用标准评定手指总主动活动度均达优。供区遗留线性瘢痕。 结论第2指蹼动脉蒂复合组织瓣修复示、中指指背复合组织缺损具有手术操作简便、疗程短、皮瓣血供可靠等优点,术后手指外观及功能良好。

    Release date:2016-08-25 10:18 Export PDF Favorites Scan
  • REPAIR OF IRREGULAR WOUNDS ON THUMBS AND INDEX FINGERS WITH FIRST DORSAL METACARPAL ARTERY-BASED PEDICLE DICTYO-PATTERN SUBLOBE FLAPS

    Objective To explore the effect of the first dorsal metacarpal artery-based pedicle dictyo-pattern sublobe flaps in repairing irregular wounds on thumbs and index fingers. Methods From December 2006 to March 2009, 15 patients with irregular wounds on thumbs and index fingers were treated, including 11 males and 4 femals, with an average age of 31 years (range, 18-48 years). Of them, 6 cases of hyperplastic scar of postburn had a 2-25 years course of disease (7.5 years onaverage) and 9 cases of machine injury had a 14-30 days course of disease (20 days on average). In 8 thumb wounds on palmaris, there were 3 cases of rhomboid wounds, 1 case of C-shape wound, and 4 cases of irregular wounds; the area of wounds ranged from 4.5 cm × 3.0 cm to 5.5 cm × 4.5 cm and wounds were treated by the first dorsal metacarpal artery-based proximate pedicle dictyo-pattern sublobe flaps (5 cm × 3 cm to 6 cm × 5 cm). In 7 index fingers wounds on dorsi-fingers, there were 3 cases of 2-wounds, 4 cases of irregular wounds; the area of wounds ranged from 1.0 cm × 0.5 cm to 2.2 cm × 2.0 cm and wounds were treated by the first dorsal metacarpal artery-based distal pedicle dictyo-pattern sublobe flaps (1.2 cm × 0.5 cm to 3.0 cm × 2.2 cm). The donor sites were covered with skin grafts or sutured directly. Results All of the flaps survived completely, the wound of recipient site healed at stage I. The free skin graft on donor site survived completely, the wound of donor site healed at stage I. All cases were followed up for 6-12 months (9 months on average). There was good appearance of flaps. The two point discrimination was 5-7 mm for the proximate pedicle flaps and 9-10 mm for the distal pedicle flaps. The thumbs had digital opposition, opposition function, the index fingers had no dysfunction. According to Hand Surgery Association Society of Chinese Medical Association Society standard for the part function evaluation trial-use of upper l imb, the results of the total active movement were excellent in 14 cases, and good in 1 case. The l ine-scar was existed at donor site of the case of direct suture, the function of thumb web had no dysfunction. Conclusion The first dorsal metacarpal artery-based pedicle dictyo-pattern sublobe flaps can repair the irregular wounds on thumbs and index fingers. It has rel iable blood supply and simple operation.

    Release date:2016-08-31 05:47 Export PDF Favorites Scan
  • CLINICAL APPLICATION OF REPAIRING WOUND IN WRIST WITH FLAP SUPPORTED BY PERFORATING BRANCH OF FOREARM RADIAL ARTERY AND CATENA-FORM BLOOD VESSEL

    ObjectiveTo explore the clinical application of the flap supported by perforating branch of the radial artery superior wrist catena-form blood vessel in repairing hand and wrist wound. MethodsBetween March 2010 and March 2013, 24 cases of severe wounds in wrist were repaired with the flap supported by perforating branch of forearm radial artery and catena-form blood vessel. There were 15 males and 9 females, aged 19-54 years (mean, 37 years). In 22 patients with trauma, there were 9 cases of machine injury, 5 cases of traffic accident injury, 5 cases of crash injury of heavy objects, 1 case of sharp instrument injury, and 2 cases of electrical injury, with a mean disease duration of 11 days (range, 2-20 days). In 2 patients with tumor excision wound, there were 1 case of right forearm liposarcoma and 1 case of left forearm squamous-cell carcinoma, with the disease duration of 7 days and 3 months, respectively. All cases complicated by bone and tendon exposure. The size of defect was 4.5 cm×4.0 cm to 10.0 cm×7.5 cm, and the size of the flap was 6.0 cm×4.0 cm to 20.0 cm×8.5 cm. The donor site was directly sutured or repaired by skin graft. ResultsPartial flap necrosis occurred in 1 case, and was cured after dressing change; the other flaps survived, and primary healing of incision was obtained. The patients were followed up 6-36 months (mean, 20 months). The flap featured good color and texture, and also recovered protective sensation at 6 months after operation, with a mean two-point discrimination of 12 mm (range, 11-14 mm). No ulcers of the flap was observed. At last follow-up, according to Hand Surgery Society of Chinese Medical Association for functional evaluation of upper limb, the function was rated as excellent in 19 cases, good in 4 cases, and fair in 1 case. ConclusionThe flap supported by perforating branch of forearm radial artery and catena-form blood vessel can be used to repair wound in wrist, which has no injury to the radial artery, and it also could be used for the patients with ulnar and radial artery injuries. Thus it is an ideal method to repair wound in the wrist because the operation is simple, and the flap has good appearance and texture.

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