west china medical publishers
Keyword
  • Title
  • Author
  • Keyword
  • Abstract
Advance search
Advance search

Search

find Keyword "transposition" 52 results
  • THE APPLICATION OF DISTALLY BASED FASCIAL PEDICLED ISLAND FLAP TO RAPAIR WOUND OF THE EXTREMITIES

    In order to preserve the major vessels of the extremities in the repair and reconstruction of wounds of the extremities, the distally based fascial pedicled island flap was applied clinically. Its axis and rotatary point were designed along orientation of the major arteries, and the blood supply was from the abundant vascular networks in the deep fascia. Twenty-two cases with exposure of tendon and bone including 10 upper limbs and 12 lower limbs were treated. The flap area of forearm ranged from 7 cm x 8 cm to 12 cm x 9 cm and the ratio of the length to width of the pedicle was 1: 1-2. The flap area of the calf ranged from 10 cm x 6 cm to 16.5 cm x 12 cm and the ratio of the length to width of the pedicle was 2:1. The rotatary angle was 130 degrees-170 degrees. After operation, 18 flaps were survived completely, 2 cases had partial necrosis on the margin, 2 failures received cross-leg flap in the second operation. The patients were followed up with an average of 13.5 months (ranged from 3 months to 2 years). The conclusions were as follows: 1. the blood supply of this type of flap was reliable and the major arteries of the extremities needed not to be sacrificed; 2. the preparation of the flap was easy and the survival rate was satisfactory; 3. the shortcomings of this flap were unsightly incision scar and the limited size of flap and; 4. during the operation, the compression of the pedicle must be avoided.

    Release date:2016-09-01 11:09 Export PDF Favorites Scan
  • Investigation of Risk Factors Influencing the Mortality of the Arterial Switch Operation

    Objective To analyze the outcome of arterial switch operation (ASO) for surgical repair of complete transposition of the great arteries (TGA), and to investigate the risk factors influencing the mortality of ASO. Methods The clinical data of patients suffered from TGA and treated with ASO from the January 2003 to December 2004, and the clinical records in hospital including eehoeardiogram and operation record were collected. The clinical data were analyzed by chi-squared test and logistic muhivariable regression analysis, including the age undergone operation, body weight, diagnosis, anatomic type of coronary artery, cardiopulmonary bypass time, aortic crossclamping time, circulation arrest time, assisted respiration time after operation, the delayed closure of sternum and so on. The risk factors influencing the early mortality of the ASO were analyzed. Results Sixty seven patients were operated with ASO, five patients died during the peri-operative period. The outcome of univariate analysis indicated that risk factors influencing the mortality of ASO included: age(P=0. 004), body weight (P=0. 042), anatomic type of coronary artery (P= 0. 006) and extracorporeal circulation time (P= 0. 048), the length of the CICU stay(P= 0. 004) and the hospital stay(P=0. 007) after operation in the TGA/VSD patients were longer than those in TGA/ IVS patients. The logistic muhivariable regression analysis indicated that the age at operation (P= 0. 012), coronary arteries anomaly (P = 0.001 )and the longer cardiopulmonary bypass time (P = 0. 002) were correlated with the increase of death rate. Conclusion It could be good results for TGA patients who was repaired with ASO. The age at operation, the coronary arteries anomaly and the longer cardiopulmonary bypass time are the risk factors influencing the mortality.

    Release date:2016-08-30 06:22 Export PDF Favorites Scan
  • Application of Double Flap Extension Technique in Complicated Arterial Switch Operation

    Abstract: Objective?To summarize the clinical experience,surgical technique and indication of coronary artery implantation with double flap extension technique in arterial switch operations (ASO) in D-transposition of the great arteries (D-TGA) and Taussig-Bing anomalies.?Methods?From January 2006 to June 2011, 21 patients (13 males and 8 females;age 110.0±84.5 d;weight 5.4±4.2 kg) with D-TGA or Taussig-Bing anomalies associated with complex coronary artery malformations underwent ASO with double flap extension technique for coronary artery implantation in Shanghai Children’s Medical Center affiliated to Medical College of Shanghai Jiaotong University. All the patients had a main trunk of right coronary artery or dilated right ventricular conus branch originated from the left or right aortic sinus,with abnormal course of anterior looping to the aorta. The double flap extension technique was described as followed: a long coronary button was excised as a flap from the aorta; another pedicle flap on the pulmonary artery (neoaorta) was cut to extend to the button of coronary artery with an equal distance; the side edges of the flap and the button were sutured together to form a lengthened coronary artery tube.?Results?No operative death occurred in hospital. The postoperative duration of mechanical ventilation was 101.6±53.6 h. The duration of ICU stay was 9.5±4.9 d. Postoperatively,low cardiac output syndrome occurred in 9 cases,pulmonary hypertension crisis in 2 cases,pneumonia in 6 cases,and acute kidney failure in 2 cases. Eleven patients underwent delayed sternum closure. All the patients were discharged after proper treatment. Follow-up was complete in 17 cases. The duration of follow-up was 2 months to 5 years. Growth and development were significantly improved in all the patients during follow-up. No patient had ischemic ECG changes. One patient underwent reoperation for supravalvular pulmonary stenosis 2 years after ASO.?Conclusion?Double flap extension technique for coronary implantation in complicated ASO can significantly decrease postoperative death due to coronary artery malformations,especially for patients who have two-stage ASO and patients whose main trunk of right coronary artery or dilated right ventricular conus branch originates from the left or right aortic sinus with abnormal course of anterior looping to the aorta.

    Release date:2016-08-30 05:50 Export PDF Favorites Scan
  • Prognosis of the complete transposition of great arteries with left ventricular outflow tract obstruction after intraventricular repair

    Objective To compare the clinical characteristics and prognosis of patients who received two different intraventricular repair. Methods We retrospectively analyzed the clinical data of 24 complete transposition of the great arteries (TGA)/left ventricular outflow tract obstruction (LVOTO) patients who all received intraventricular repair. The patients were allocated into two groups including a REV group and a Rastelli group. There were 13 patients with 9 males and 4 females at median age of 25.2 (6, 72) months in the REV group. There were 11 patients with 10 males and 1 female at median age of 47.9 (14, 144) months in the Rastelli group. Results The age at operation (P=0.041), pulmonary valve Z value (P=0.002), and LVOT gradient (P=0.004), rate of multiphase operation between the REV group and the Rastelli group was statistically different. The mean follow-up time was 17.3 months. And during the follow-up, 1 patient had early mortality, 2 patients had early reintervention, 7 patients had postoperative RVOTO, and received Rastelli and larger VSD inner diameter were associated with postoperative RVOTO. Conclusion As the traditional surgery for TGA/LVOTO patients, the intraventricular repair has a low early mortality and low early reintervention. Modified REV is associated with postoperative peripheral pulmonary vein isolation (PVIS). Patients who received Rastelli operation and with larger VSD inner diameter are more likely to have postoperative RVOTO, but the reintervention for PVI and RVOTO during follow up is very low.

    Release date:2019-05-28 09:28 Export PDF Favorites Scan
  • Surgical Treatment of Complete Transposition of Great Arteries with Ventricular Septal Defect and Pulmonary Stenosis

    Surgical treatment of complete transposition of great arteries with ventricular septal defect and pulmonary stenosis (TGA/VSD,PS) consists of Rastelli procedure, Lecompte procedure, Nikaidoh procedure, Yamagishi procedure and Ross-Konno switch procedure. Rastelli procedure and Lecompte procedure cause less myocardial lesion but more late complications. Nikaidoh procedure and Yamagishi procedure achieve better anatomical repair but involve more myocardial lesion. Ross-Konno switch procedure has a narrow surgical indication. So for patients with TGA/VSD,PS, different surgical methods should be used according to surgical indications and individual conditions. In this paper, the advantages and disadvantages, indication, contraindication, outcome and prospect of them are reviewed.

    Release date:2016-08-30 06:16 Export PDF Favorites Scan
  • DECOMPRESSION AND ANTERIOR TRANSPOSITION OF ULNAR NERVE WITH INFERIOR ULNARCOLLATERAL ARTERY FOR CUBITAL TUNNEL SYNDROME

    Objective To report the operation method and the cl inical effect of decompression and anterior transposition of the ulnar nerve with inferior ulnar collateral artery for cubital tunnel syndrome. Methods From September 2005 to May 2006, 25 cases of cubital tunnel syndrome were treated by the method of decompression and anterior transposition of the ulnar nerve with inferior ulnar collateral artery. There were 19 males and 6 females with an average of 60 years (20-72 years). The disease course was 2 months to 3 years (mean 6.7 months). The causes were ostesarthritis in 23 cases, cubital tunnel cyst in 1 case and ulnar nerve ol isthy in 1 case. According to Pasque grading system for cubital tunnel syndrome, 19 cases were graded as good and 6 cases were graded as poor. Electrophysiological examination showed the motor nerve conduction velocity of the ulnar nerve around the elbow joint was less than 42 m/s. Results All wounds healed by first intention and no operative compl ications and recurrences occurred. All patients were followed up for one year to two and half years (13.9 months on average). According to Pasque grading system for cubital tunnel syndrome, 15 cases were graded as excellent, 9 cases as good and 1 case as fair. The excellent and good rate was 96%, indicating a significant difference compared with the results before operation (P lt; 0.05). Electrophysiological examination showed the motor nerve conduction velocity of the ulnar nerve around the elbow joint was more than 42 m/s. Conclusion The method of decompression and anterior transposition of the ulnar nerve with inferior ulnar collateral artery is safe and effective for the treatment of cubital tunnel syndrome.

    Release date:2016-09-01 09:17 Export PDF Favorites Scan
  • Anatomical study on the repair of femoral nerve injury with anterior branch of obturator nerve

    Objective To investigate the feasibility of the anastomosis of the anterior branch of obturator nerve and the muscular branch of femoral nerve. Methods Five fresh frozen cadavers, including 3 males and 2 females, were included. Both of the obturator nerve, femoral nerve and their branches were dissected, then their routes and anatomical positions were observed. The diameter and the number of myelinated nerve fiber of the anterior branch of obturator nerve and femoral nerve muscular branches were measured, as well as the overlap distance between them. Results The diameter of myelinated nerve fiber of the anterior branch of obturator nerve was (3.80±1.22) mm; the number of myelinated nerve fiber was 11 358±800. The diameters of the rectus femoris branch and the medial femoral branch were (1.60±0.54) mm and (2.20±0.66) mm, respectively; the number of myelinated nerve fiber were 4 961±655 and 6 666±466. Both the diameter and number of myelinated nerve fiber were close to the anterior branch of obturator nerve. The anterior branch of obturator nerve could be directly anastomosed with each nerve branch of femoral nerve in nontension, and the overlap distance was about 30 mm. Conclusion It is feasible to repair the femoral nerve by transposed the anterior branch of obturator nerve and anastomosed with the femoral nerve muscular branches. And the rectus femoris branch and the medial femoral branch should be taken as the recipient nerve.

    Release date:2017-11-09 10:16 Export PDF Favorites Scan
  • The operative strategy after palliative shunt for corrected transposition of great artery (cTGA) with left ventricular outflow tract obstruction and cardiac malpostion

    ObjectiveTo explore the operative strategy after palliative shunt for correcting congenitally corrected transposition of great artery (cTGA) patients with left ventricular outflow tract obstruction (LVOTO) and cardiac malpostion.MethodsWe retrospectively analyzed the clinical data of 54 patients with onsecutive cTGA with LVOTO and cardiac malpositon from June 2011 to May 2019. The patients were devided into two groups. There were 24 patients (16 males and 8 females at mean age of 5.4±2.2 years) who underwent one and a half ventricle repair as a one and half ventricle group. And there were 30 patients (19 males and 11 females at age of 8.6±6.2 years) who underwent one ventricle repair operation as a one ventricle group. Follow-up data were collected by telephone interviews.ResultsThere was no statistical difference in systemic atrioventricular valve regurgitation and systemic ventricular ejection fraction between the two groups (P>0.05). Compared with one and a half ventricle group, the cardiopulmonary bypass time (CPB) time, mechanical ventilation time and intensive care unit stay were significant shorter than those in the one ventricle group (P<0.05), but prolonged pleural effusions developed more frequently in the one ventricle repair group (P<0.05). There was no in-hospital death but 1 follow-up death in each group. The follow-up time was 49 (17-38) months in the one and half ventricle group at follow-up rate of 93.9%, and 47 (12-85) months at follow-up rate at 90.9% in the one ventricle group. One and a half ventricle group had better systemic ventricular ejection fraction (EF) than that in the one ventricle repair group. And the rate of heart function (NYHA) class Ⅲ and class Ⅳ in one and a half ventricle group was lower than that in the ventricle group. No significant difference of survival and freedom from re-intervention probability between the two groups was found.ConclusionFor patients of correction of cTGA with LVOTO and cardiac malposition after palliative shunt, the one-and-a-half ventricular repair procedure is ideal operative strategy.

    Release date:2021-04-25 09:57 Export PDF Favorites Scan
  • EFFECTIVENESS COMPARISON BETWEEN TWO DIFFERENT METHODS OF ANTERIOR TRANSPOSITION OF THE ULNAR NERVE IN TREATMENT OF CUBITAL TUNNEL SYNDROME

    Objective To compare the effectiveness of anterior subcutaneous transposition and anterior submuscular transposition of the ulnar nerve in the treatment of cubital tunnel syndrome. Methods Between June 2006 and October 2008, 39 patients with cubital tunnel syndrome were treated separately by anterior subcutaneous transposition (anterior subcutaneous transposition group, n=20) and anterior submuscular transposition (anterior submuscular transposition group, n=19). There was no significant difference in gender, age, duration, and cl inical classification between 2 groups (P gt; 0.05). Results All incisions healed by first intention in 2 groups. In anterior submuscular transposition group, 17 patients (89.5%) had abruptly deteriorated symptoms after the symptom of ulnar nerve compression was abated, and 1 patient (5.3%) had cicatrix at elbow; in the anterior subcutaneous transposition group, 10 patients (50.0%) had disesthesia at cubital anterointernal skin after operation; and there was significant difference in the complication between 2 groups (χ2=9.632, P=0.002). The patients were followed up 24 to 36 months, 28 months on average. There was no significant difference in grip strength, pinch power of thumb-to-ring finger and thumb-to-little finger, or two-point discrimination of distal l ittle fingers between 2 groups (P gt; 0.05), but significant differences were found between before operation and after operation in 2 groups (P lt; 0.05). According to the Chinese Medical Society of Hand Surgery Trial upper part of the standard evaluation function assessment, the results were excellent in 5 cases, good in 12 cases, fair in 1 case, and poor in 2 cases in the anterior subcutaneous transposition group; the results were excellent in 6 cases, good in 10 cases, fair in 2 cases, and poor in 1 case in the anterior submuscular transposition group; and there was no significant difference between 2 groups (u=0.346, P=0.734). According to disabil ity of arm-shoulder-hand (DASH) questionnaires, the score was 22 ± 7 in anterior subcutaneous transposition group and was 19 ± 6 in anterior submuscular transposition group, showing no significant difference (t=1.434, P=0.161). Conclusion Both anterior subcutaneous transposition and anterior submuscular transposition have good effectiveness in treating cubital tunnel syndrome; and anterior submuscular transposition has less complication than that of submuscular transposition.

    Release date:2016-08-31 04:23 Export PDF Favorites Scan
  • Application of Portosystemic Shunt After Subcutaneous Transposition of the Spleen to Orthotopic Liver Transplantation in the Rat

    ObjectiveTo evaluate the application of portosystemic shunt after subcutaneous transposition of the spleen (STS) to orthotopic liver transplantation (OLT) in the rat. MethodsOne hundred and eighty Wistar rats were randomly divided into the group of orthotopic liver transplantation after portosystemic shunts by subcutaneous transposition of the spleen (STS+OLT group) and the group of orthotopic liver transplantation (OLT group). The two groups were further divided into A, B, C subgroups in the light of duration of anhepatic phase (phases were respectively less than 25 min, around 35 min and 45 min).There were fifteen rats in each subgroup. At the described intervals, blood samples were collected from the peripheral and portal vein for testing ALT, pH and endotoxin levels. The survival rates were also observed. Results The ALT value of all animals basically returned to normal levels on the 7th postoperative day in the STS+OLT group and the OLT A subgroup, but in OLT B subgroup, ALT was still remarkably elevated on the 7th postoperative day (P<0.01), and returned to normal levels on the 30th postoperative day. The pH values and endotoxin levels from the portal vein of all animals in STS+OLT groups and OLT A subgroup had no significant difference (Pgt;0.05) at the beginning, the end of the anhepatic phase and at the time of reperfusion for 30 min. But in the OLT B and C groups, the pH values and endotoxin levels were significantly higher at the end of anhepatic phase and reperfusion for 30 min than those in the beginning of anhepatic phase (P<0.01). The survival rates at postoperative different time points in both B and C subgroup of the OLT group were significantly lower than those in STS+OLT group animals (P<0.05).Conclusion The portosystemic shunt by subcutaneous transposition of the spleen can notably improve both the success rate of the OLT procedure and the postoperative survival rate in the rat.

    Release date:2016-08-28 05:11 Export PDF Favorites Scan
6 pages Previous 1 2 3 ... 6 Next

Format

Content