1.The combined use of flaps transfer and ilizarov technique reconstruct the large soft tissue defects and bone lose in the lower leg
Gen WEN ; Peihua CAI ; Yimin CHAI
Chinese Journal of Microsurgery 2017;40(3):225-228
Objective To determine the outcome of the combined use of flaps transfer and ilizarov technique reconstruct the large soft tissue defects and bone lose in the lower leg.Methods Sixteen patients were identified from a retrospective review from July,2008 to July,2013,who suffered the large soft tissue defects and bone lose in the lower leg and underwent single-stage soft tissue and osseous reconstruction using the flap technique and Ilizarov method.There were 12 males and 4 females aged from 22 to 62 years old (average 42.6 years old).The size of soft tissue defect ranged from 8 cm×9 cm to 30 cm×20 cm.The length of the bone discrepancy ranged from 2 to 14 cm.According to the local condition of the lower leg and the size of the composite tissue defects,10 patients received the free flap covering,6 patients repaired by the saphenous neurocutaneous perforator flap (3 cases) and sural nerve neurocutaneous flap (3 cases).Daily monitoring the skin temperature postoperative.Distraction was commenced on postoperative day 10 to 14 at the rate of 1 mm/day and continued in 4 equal increments.Results The follow-up time ranged from 18 to 36 months.Sixteen flaps survived completed,only 1 flap was observed the venous congestion in postoperative day 2.The duration of ilizarov application ranged from 3.5 to 18.0 months.All patients achieved final union.All patients were satisfied with the outcome of the surgery.Conclusion The combined use of neurocutaneous flap and Ilizarov technique for reconstruction of large composite soft tissue defect in the lower leg.Significantly reduce patient treatment time,improving traction osteogenesis of long bones and the ability of resistance to infection.
2.Progress of tamsulosin hydrochloride sustained-release preparation
Peihua CHAI ; Tao ZHANG ; Shen GAO
Journal of Pharmaceutical Practice 2016;34(6):493-496
Tamsulosin hydrochloride is widely used for the treatment of lower urinary tract symptoms of benign prostatic hyperplasia ,requiring long-term medication .It reduces adverse reactions of hypotension and dizziness by rapid absorption from oral intake .The sustained-release (SR) formulation is recommended for clinical application .Currently in domestic and foreign market,SRproductsmainlyincludeSRcapsulesandSRtablets,likeFlomaxR○ andHarnalR○ .Thedomesticmarketmainlyuses the originally developed Harnal R○ SR capsules .In accordance with the drug′s potential market ,more and more SR studies have been done .This article reviews the research progress of tamsulosin hydrochloride sustained-release preparation .
3.Clinical application evaluation of thrombus aspiration on emergency percutaneous coronary intervention of patients with ST-segment elevation type of myocardial infarction
Yuying WU ; Rengui CHAI ; Peihua ZHAO ; Hongliang CONG
Clinical Medicine of China 2016;32(7):606-610
Objective To investigate the influence of thrombus aspiration on ventricular remodeling of patients with ST?segment elevation type of myocardial infarction ( STEMI ) who underwent emergency percutaneous coronary intervention ( PCI) and its predicative value for patients′ prognosis. Methods Three hundred and eight patients who were diagnosed with STEMI line emergency PCI and hospitalized in the Cardiology Department of Jinghai Clinical College of Medical University of Tianjin from March 2011 to March 2014 were retrospective analyzed, including 152 patients received thrombus aspiration during primary PCI as thrombus aspiration group,and the remaining 156 patients without thrombus aspiration as control group. Indexes of myocardial perfusion levels such as ST?segment resolution 2 hours after PCI and TIMI myocardial perfusion grade were measured in all patients. All patients accepted echocardiography examinations to detect left ventricular end diastolic diameter(LVED) and left ventricular ejection fraction(LVEF) 10 days after PCI. The indexes differences of the two groups,secondary end points major cardiac adverse events(MACE) at 6 months were compared. Results There was no statistical difference between the ratio of two groups for ST segment fell more than 50%( 78. 9%( 120/152) vs. 71. 2%( 111/156) ,χ2=0. 428,P=0. 669) . But for ST segment fell more than 70%,the ratio of the thrombus aspiration group was significantly higher than that in the control group ( 73. 7%( 112/152 ) vs. 47. 4% ( 74/156 ) , χ2 = 4. 701, P = 0. 001 ) . Two groups of patients were treated by echocardiography 10 days after PCI,showed the LVED in the thrombus aspiration group was lower than that in the control group((50. 2±4. 7) mm vs. (51. 6±4. 6) mm,t=2. 642,P=0. 008),while the LVEF value was higher than that in the control group((56. 9±4. 9)% vs. (49. 4±4. 2)%,t=14. 434,P=0. 001). Recurrent angina pectoris decreased significantly in the thrombus aspiration group at 6 months ( 4. 61% ( 7/152 ) vs. 10. 90%(17/156),χ2=2. 056,P=0. 040). Conclusion STEMI patients adopt thrombus aspiration that undergoing emergency PCI,not only can improve myocardial reperfusion,especially microcirculation reperfusion, but also can improve the left ventricular systolic function and the prognosis of patients.
4.Clinical evaluation of modified transthecal digital block and traditional dorsal digital block techniques for hand injury of adults in emergency
Ye LU ; Wenqi GU ; Peihua CAI ; Yanfeng LI ; Yulin ZHAN ; Yimin CHAI
Chinese Journal of Tissue Engineering Research 2015;(15):2356-2360
BACKGROUND:Dorsal digital block refers to the commonly used anesthesia for adults in smal or moderate hand injury surgeries, but in recent years, modified transthecal digital block technique is gradualy respected, which is favored with a rapid and good effect and fewer complications.
OBJECTIVE:To evaluate the clinical anesthetic outcomes of modified transthecal digital block and traditional dorsal digital block technique for the treatment of hand injury of adults in emergency by a prospective randomized controled study.
METHODS:Totaly 60 adult patients with hand injury were enroled and divided into two groups of modified transthecal digital block and traditional dorsal digital block randomly. Blocks were performed by one single surgeon. The operation time, local anesthetic dose, onset time of anesthesia, duration of anesthesia, success rate of anesthesia, visual analogue scale scores and complications were recorded.
RESULTS AND CONCLUSION:The anesthesia effects in the two groups were acceptable. There was no significant difference in the onset time of anesthesia, duration of anesthesia, success rate of anesthesia and complications between the two groups (P > 0.05). The operation time of anesthesia, local anesthetic dose, and visual analogue scale scores were significantly different between the two groups (P< 0.05). Modified transthecal digital block is more convenient and has less pain than the traditional root digital block, which is a safe and reliable anesthetic technique.
5.Long-term effects of L-T4 treatment on physical and intellectual development for congenital hypothyroidism
Peihua FANG ; Ning LI ; Jinyan CHAI ; Jingyan YANG ; Mei LYU ; Guangyu HUANG ; Chengyun YUAN
Chinese Journal of Endocrinology and Metabolism 2015;31(10):887-890
To explore the long-term effects of L-T4 treatment on physical and intellectual development in neonatal congenital hypothyroidism(CH) patients during adolescence and adulthood.14 out of 15 patients,aged 15-31 years old,including 9 males and 6 females,were diagnosed by neonatal screening for congenital hypothyroidism.(1) By treatment for 10 years until adolescence,return visit ages were 12.6-18.1 years old,the height of patients were normal in 14 cases,weight normal in 8 cases,and overweight in 6 cases.Only the first patient of neonatal screening for congenital hypothyroidism height 154 cm,weight of 43.5 kg,which were below the standard.Bone age by X-ray showed 9 normal,1 case of rapid development,4 cases with left wrist bone age retardation.IQ combined Raven's test(CRT) showed 3 cases excellent,7 cases normal,3 cases borderline,and 2 cases low.(2)Treatment for more than 20 years to adulthood,9 cases of return visits (8 cases were screened out) by 23-31 years of age,with 5 males and 4 females,height and bone age were all normal,normal weight,only 2 cases BMI slightly overweight.As to IQ,good were in 7 cases,mild retardation in 2 cases.7 patients received above average education;they were all employed except one.The employed patients were all capable for their jobs.In summary,screening out of 8 patients,1 case were of mild mental retardation (12.5%);while 7 patients(87.5%),both in physical and intellectual levels were as those of the normal population.
6.Correlation factors and therapeutic strategies for refractory ulcer
Peihua YANG ; Zhicheng CHAI ; Chunwen LIU ; Guanlin ZHOU
International Journal of Traditional Chinese Medicine 2011;33(7):629-631
Refractory ulcer is a commonly seen disease clinically. We believe the therapeutic strategies for refractory ulcer should include changing life style, standardizing medication, tracing observation, and rechecking in regularity. Traditional Chinese medicine combined with western medicine can be used for the treatment. When the therapeutic effect is not good, diagnosis and therapeutic methods need to be re-judged.Local therapy and operation can be performed if necessary.
7.The free peroneal perforator-based sural neurofasciocutaneous flap: anatomical study and clinical application
Yimin CHAI ; Chunyang WANG ; Jizhong YE ; Gen WEN ; Peihua CAI ; Bingfang ZENG
Chinese Journal of Microsurgery 2010;33(4):268-270,后插一
Objective To report the anatomical study and clinical application of the free peroneal perforator-based sural neurofasciocutaneous flap. Methods Latex injection studies were performed on 10 adult cadaveric lower limbs. The presence, prevalence, and location of the peronel perforators that were suitable for vascular anastomosis were documented. From April 2007 to January 2010, 6 patients with large soft tissue defects in the upper limb underwent the reconstructive procedures with the free peroneal perforatorbased sural neurofasciocutaneous flap transfers. 4 patients were men and 2 were women, with the age ranging from 19 to 60 years. The causes of the injury included 4 motor vehicle accidents, and 2 massive machinery trauma. The area of the flap ranged from 16 cm × 8 cm to 30 cm × 10 cm, and the length of the perforator pedicle was 4 cm to 6 cm. Results A mean of 5.3 perforating vessels of the peroneal artery was noted in the specimen. The peroneal perforator that located at the junction of the middle and lower thirds of the fibula was found suitable for microsurgery, with the external diameter and the length being (1.21 ± 0.13)mm and (4.6 ± 0.8)cm respectively. All the 6 flaps survived completely without necrosis. No severe venous congestion was observed. All the patients were satisfied with the aesthetic outcome postoperatively at 3 to 12 months'follow-up. There were no major donor site complications. Conclusion The free sural neurofasciocutaneous flap based on a single peroneal perforator is an excellent tool for reconstruction of extensive soft tissue defects in the upper limb.
8.The distally based cross-leg anterolateral thigh flap for reconstruction of soft tissue defects in middle and distal thirds of the contralateral leg
Shenghe LIU ; Peihua CAI ; Yimin CHAI ; Zengyu XU ; Chaoyin JIANG ; Cunyi FAN
Chinese Journal of Microsurgery 2009;32(1):29-31,illust 1
Objective To report the technique and effect of distally based, cross-leg, anterolateral thigh flap for reconstructing the soft tissue defects in middle and distal thirds of the contralateral leg. Methods Five patients of soft tissue defects in lower legs associated with injuries to the eontralateral legs were treated with distally based, cross-leg, anterolateral thigh flaps of the contralateral limbs. Results After the pedicle division at 6 weeks postoperatively, the 5 flaps all survived. And the blood supply of flaps remained steady when followed up for 12 to 15 months. The flaps possessed favorable contours, and allowed successful secondary repair of injured bones or tendons. The donor sites healed primarily, and no influence was observed to the donor limbs. Conclusion For the soft tissue defects in middle and distal thirds of leg associated with damage to the surrounding tissues and arterial injury of the contralateral leg, cross-leg transplantation of the contralateral distally based anterolateral thigh flap is a good option of reconstruction.
9.Application of reversed perforator-plus sural neurofasciocutaneous flap in lower leg
Nanji LU ; Yimin CHAI ; Chanyang WANG ; Peihua CAI ; Jiagen SHENG ; Binfang ZENG
Chinese Journal of Microsurgery 2009;32(3):181-183,illust 1
Objective To report the operative technique and clinical results of reversed perforator-plus sural neurofasciocutaneous flap in lower leg. Methods Perforator-plus sural neurofasciocutaneous flaps, which designed along the axis of the sural nerve and based on the dual-pedicle of fasciocutaneous and per-oneal perforator, were used to reconstruct soft-tissue defect in lower extremities. Results Twenfy-four flaps, ranged from 25 cm×12 cm - 8 cm ×7 cm in size, survived completely without venous congestion and distal ischemia and necrosis. The color and texture of the flaps were good. The appearance and functional re-suits were satisfactory with following up for 6 to 12 months. Conclusion The modified technique in pediclehave minimized the complication, enlarged the size of the flap and improved the survive rates. It is a goodmethod in repairing large soft-tissue defects of extremities.
10.Clinical experiences of the reversed superficial peroneal neurocutaneous island flap based on the descending branch of the distal perforating branch of the pcroneal artery
Yimin CHAI ; Binfang ZENG ; Qinlin KANG ; Peihua CAI ; Yang CHEN ; Tianqin CHENG
Chinese Journal of Microsurgery 2008;31(4):-
Objective To report the operative technique and clinical experiences of the modified reversed superficial peroneal neurocutaneous island flaps for reconstruction of the ankle and foot.Methods According to the previous anatomical studies and our clinical experiences,we devised the reversed superficial peroneal neuroeutaneous island flap based on the descending branch of the distal perforator of the peronealrtery and its venae comitantes,and covered the soft defect of the ankle and foot with it.Results Twenty-one of the 23 flaps survived completely without complications,while the other two occurred marginal necrosis.The maximum surface of the flap in our series was 12 cm×13 cm.and the minimum one was 5 cm×4 cm.The length of the pedicle ranged from 5 cm to 10 cm.The texture of the flaps was good,while the cosmetic and function of them were evaluated as acceptable in all cased after 6 to 21 months follow-up.Conclusion The reversod superficial peroneal neurocutaneous island flaps is a versatile,reliable procedure useful in reconstruction of the ankle and foot.

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