Endoscopy ; Humans ; Male ; Middle Aged ; Myoepithelioma ; surgery ; Nasal Septum ; pathology ; Nose Neoplasms ; surgery

OBJECTIVETo determine the value of the use of a pneumatic tourniquet in total knee arthroplasty.

METHODSSixty patients were prospectively randomized into 2 groups, one group underwent total knee replacement with a tourniquet (n = 30) and one without (n = 30). Operating time, blood loss, postoperative mean morphine requirement, swelling, ecchymosis, earlier straight-leg raising and postoperative knee flexion were measured in both groups.

RESULTSThere was no significant difference in the total blood loss between the 2 groups although the intraoperative blood loss was significantly greater in those without a tourniquet. The mean morphine requirement, postoperative swelling, scope of ecchymosis, earlier straight-leg raising and postoperative knee flexion in the patients that had surgery without a tourniquet were significantly better than those with a tourniquet.

CONCLUSIONKnee arthroplasty operation with the use of a tourniquet has only small benefits on the total blood loss, but hinder in patients' early postoperative rehabilitation exercises.

Aged ; Arthroplasty, Replacement, Knee ; Blood Loss, Surgical ; prevention & control ; Female ; Humans ; Male ; Prospective Studies ; Tourniquets ; adverse effects

With the development of molecular pathology,many types of epidermal growth factor receptor (EGFR) mutations have been identified.The efficacy of EGFR tyrosine kinase inhibitors (EGFR-TKIs) in non-small cell lung cancer (NSCLC) patients with different types of EGFR mutations,especially in patients with single rare mutations or complex mutations (co-occurrence of two or more different mutations),has not been fully understood.This study aimed to examine the efficacy of EGFR-TKIs in NSCLC patients with different types of EGFR mutations.Clinical data of 809 NSCLC patients who harbored different types of EGFR mutations and treated from January 2012 to October 2016 at Renmin Hospital and Zhongnan Hospital,Wuhan,were retrospectively reviewed.The clinical characteristics of these patients and the efficacy of EGFR-TKIs were analyzed.Among these patients,377 patients had only the EGFR del-19 mutation,362 patients the EGFR L858R mutation in exon 21,33 patients single rare mutations and 37 patients complex mutations.Among these 809 patients,239 patients were treated with EGFR-TKIs.In all the 239 patients,the disease control rate (DCR) was 93.7％ with two patients (0.2％) achieving complete response (CR),the median progression free survival (PFS) was 13.0 months (95％ confidence interval [CI],11.6-14.4 months),and the median overall survival (OS) was 55.0 months (95％ CI,26.3-83.7 months).Subgroup analysis revealed that the DCR in patients harboring single rare or complex mutations of EGFR was significantly lower than in those with del-19 or L858R mutation (P＜0.001).Patients with classic mutations (del-19 and/or L858R mutations) demonstrated longer PFS (P＜0.001) and OS (P=0.017) than those with uncommon mutations (single rare and/or complex mutations).Furthermore,the patients with single rare mutations had shorter median OS than in those with other mutations.Multivariate Cox regression analysis identified that the type of EGFR mutations was an independent risk factor for PFS (hazard ratio [HR]=0.308,95％ CI,0.191-0.494,P＜0.001) and OS (HR=0.221,95％ CI,0.101-0.480,P＜0.001).The results suggest that the single rare or complex EGFR mutations confer inferior efficacy of EGFR-TKIs treatment to the classic mutations.The prognosis of the single rare EGFR mutations is depressing.EGFR-TKIs may be not a good choice for NSCLC patients with single rare mutations of EGFR.Further studies in these patients with uncommon mutations (especially for the patients with single rare mutations) are needed to determine a better precision treatment.

OBJECTIVETo analyze the causes of the complications associated with the pedicle screw fixation during and after operation, as well as the methods for prevention and treatment.

METHODSFrom January 1988 to December 1999, 475 patients who underwent pedicle screw fixation for various spinal disorders were reviewed retrospectively with statistical analysis.

RESULTSFour hundred and twenty-eight patients (90.1% of all) were followed up for (6.0 +/- 3.7) years. Complications of CD, DRFS, Dick, RF and steffee among 72 cases (80% of all) occurred during the operation of pedical screw fixation in 26 cases with the incidence of 5.5% and after the operation in 64 cases with the incidence of 15%. The incidence of operative/postoperative complications were 0-12.9% in CD, 6.8%-11.9% in DRFS, 7.3%-12.7% in Dick, 2.4%-19.5% in RF, and 10.1%-21.5% in Steffee respectively. The main complications included pseudoarthrosis, pedicle screw broken, pedicle screw malposition and so on. The complications were mainly due to unskilled technique of pedicle screw fixation, implant defect in design and so on.

CONCLUSIONSThe complications associated with the technique of pedicle screw fixation must not be neglected. The main causes are laid on unskilled technique of pedicle screw fixation and implant defect in design.

Equipment Failure ; statistics & numerical data ; Female ; Follow-Up Studies ; Humans ; Incidence ; Internal Fixators ; Male ; Postoperative Complications ; epidemiology ; etiology ; Pseudarthrosis ; epidemiology ; etiology ; Retrospective Studies ; Spinal Diseases ; surgery ; Spinal Fusion ; methods

OBJECTIVETo compare and evaluate instrumented posterior fusion with instrumented circumferential lumbar fusion in the treatment of lumbar stenosis with low degree lumbar spondylolisthesis.

METHODSFrom April 1998 to April 2003, 45 patients who suffered from lumbar stenosis with low degree lumbar spondylolisthesis were divided into 2 groups (A and B) at random. The patients in group A (n = 24, average age 54 years old) were performed decompressive laminectomy, intertransverse process arthrodesis with bone grafting and transpedicle instrumentation of solid connection (SOCON) system. The patients in group B (n = 21, average age 53 years old) were performed the same procedure as group A except adding posterior lumbar interbody fusion (PROSPACE). The main levels of lumbar spondylolisthesis in 2 groups was L(4 - 5) or L(5)-S(1). All cases were classified as degree 1 to degree 2. All patients in the two groups received preoperative myelography or CTM, and were diagnosed lateral recess stenosis and(or) central lumbar canal stenosis.

RESULTSAll the patients were followed up from 12 to 72 months. In group A, the results showed that the preoperative clinical symptoms disappeared completely in 12 of 24 patients, pain relief was seen in 91.7% (22/24), anatomical reduction rate was 91.7%. No infection or neurologic complication occurred in this series. In group B, the results showed that the preoperative clinical symptoms disappeared completely in 13 of 21 patients, pain relief was seen in 90.5% (19/21), anatomical reduction rate was 95.2%. Four cases of infection or neurologic complication occurred in this series. Two groups had no significant difference in follow-up clinical outcome and anatomical reduction rate. But group A had better intraoperative circumstances and postoperative outcome than group B, group B had better postoperative parameters in X-ray of angle of slipping and disc index than group A.

CONCLUSIONSThe best surgical treatment method of lumbar stenosis with low degree lumbar spondylolisthesis is complete intraoperative decompressive laminectomy, reduction with excellent transpedicle system instrumentation and solid fusion after bone grafting. The use of cage should be conformed to strict indications.

Adolescent ; Adult ; Aged ; Female ; Humans ; Laminectomy ; Lumbar Vertebrae ; surgery ; Male ; Middle Aged ; Retrospective Studies ; Spinal Fusion ; methods ; Spinal Stenosis ; complications ; surgery ; Spondylolysis ; complications ; surgery ; Treatment Outcome

OBJECTIVETo evaluate the outcome of two methods for stabilization and fusion: posterolateral fusion and circumferential fusion involving posterior lumbar interbody fusion for lumbar stenosis with Grades 1 and 2 lumbar spondylolisthesis.

METHODSFrom April 1998 to April 2003, 45 patients suffering from lumbar stenosis with low degree lumbar spondylolisthesis treated in our hospital were retrospectively reviewed and assigned to two groups. Among them, 24 patients (group A) were treated with instrumented posterolateral fusion and 21 patients (group B) with instrumented circumferential fusion. The two groups were compared for clinical and radiological outcomes.

RESULTSAll patients were followed up for 12 to 72 months. In group A, results showed preoperative clinical symptoms disappeared completely in 12 of 24 patients, and pain relief was seen in 91.7% (22/24). Two cases suffered from residual symptoms. Twenty-two cases obtained complete reduction of olisthy vertebral bodies, and anatomical reduction rate was 91.7%. No infection or neurological complication occurred in this group. In group B, results showed preoperative clinical symptoms disappeared completely in 13 of 21 patients, and pain relief was seen in 90.5% (19/21). One case suffered from residual symptoms. Twenty cases obtained complete reduction of the olisthy vertebral bodies, and anatomical reduction rate was 95.2%. Four cases of infection or neurological complication occurred in this group. Both groups indicated no significant difference in clinical outcomes and anatomical reduction rate during follow-up. But group A had better intraoperative circumstances and postoperative outcome than group B, while group B had better postoperative parameters in X-ray of Angle of Slipping and Disc Index than group A.

CONCLUSIONSThe first choice of surgical method for lumbar stenosis with low degree lumbar spondylolisthesis is instrumented posterolateral fusion. Only when patients suffer from severe preoperative disc degeneration and low back pain or intervertebral instability should we consider indications for additional use of CAGE.

Adult ; Aged ; Female ; Follow-Up Studies ; Humans ; Lumbar Vertebrae ; surgery ; Male ; Middle Aged ; Radiography ; Retrospective Studies ; Spinal Fusion ; methods ; Spinal Stenosis ; diagnostic imaging ; pathology ; surgery ; Spondylolisthesis ; diagnostic imaging ; pathology ; surgery ; Treatment Outcome

In order to investigate the pathogens associated with a clustered event of fever occurred in a kindergarten in Fuzhou,Fujian Province,samples were collected from pediatric cases in the kindergarten and screened for various possible viral agents by real-time PCR.Of 10 respiratory specimens,7 were positive of human adenovirus (HAdV).The positive samples were inoculated into HEp-2 cell-lines for viral isolation.The PCR products of the hypervariable regions of Hexon gene were sequenced,followed by BLAST searches for viral type identification.In comparison with the strains prevalent in domestic or abroad in recent years,the deduced amino acid sequences showed no amino acid mutation in the hypervariable regions of Hexon.Combined with clinical manifestation and field epidemiological data,human adenovirus type 7 could be confirmed as the pathogen linked to the clustered event.

BACKGROUNDSelective anterior thoracolumbar/lumbar (TL/L) fusion and instrumentation in adolescent idiopathic scoliosis (AIS) patients with a structural major TL/L curve and a nonstructural minor thoracic curve is rarely reported. We investigate the correction results of these patients.

METHODSBy reviewing the medical records and roentgenograms of AIS patients undergone selective anterior TL/L fusion and instrumentation, Cobb angle, correction rate of the major and minor curves, coronal balance, lowest instrumented vertebra (LIV) tilt, coronal disc angle immediately below the LIV (LIVDA) and radiographic shoulder height (RSH) were measured and analyzed.

RESULTSForty patients were included. For the major TL/L curve, the mean coronal Cobb angle before and after operation were 43.9° and 8.7°, respectively, with an average correction rate of 80.2% (P = 0.000). While for the minor thoracic curve, the mean coronal Cobb angle before and after operation were 27.2° and 14.3°, respectively, with an average spontaneous correction rate of 47.4% (P = 0.000). At final follow-up, the coronal Cobb angles of the major and minor curves were 13.7° and 17.1°, respectively, with a mean correction loss of 5.0° and 2.9°, respectively. The coronal balance before and after operations was 13.2 mm and 11.5 mm, respectively. At the final follow-up, it turned to 5.6 mm, which was much better than that after operation (P = 0.001). The mean LIV tilt was 23.5° before operation, and was significantly improved after operation (8.3°, P = 0.000). At final follow-up, it was well maintained (10.6°). The LIVDA averaged 3.5° before operation, and aggravated to 5.5° after operation (P = 0.100) and 7.4° at final follow-up (P = 0.012), respectively. The RSH was 7.3 mm before operation, 5.6 mm after operation, and 2.2 mm at the final follow-up. The RSH at the final follow-up was significantly improved compared with that after operation (P = 0.002).

CONCLUSIONSSelective anterior TL/L fusion and instrumentation can get good correction results of both curves, with good results of the coronal balance and RSH in AIS patients, while a larger LIVDA.

Adolescent ; Child ; Female ; Humans ; Lumbar Vertebrae ; surgery ; Male ; Retrospective Studies ; Scoliosis ; surgery ; Spinal Fusion ; methods ; Thoracic Vertebrae ; surgery ; Treatment Outcome

OBJECTIVETo analyze the correction results of the adolescent idiopathic scoliosis patients with a proximal thoracic (PT) curve.

METHODSThere were 13 cases of double thoracic curve (PUMC IIa) and 13 cases of triple curve (PUMC IIIa 11 cases, IIIb 2 case). The upper instrumented vertebra were at T(3) or above (fusion level including PT curve, Group A) in 18 cases, and at T(4) or T(5) (PT curve not fused, Group B) in 8 cases. Reviewing the medical records and radiographs of 26 adolescent idiopathic scoliosis patients with a proximal thoracic curve that underwent corrective surgery, the changes of the curve and the shoulder balance were analyzed.

RESULTSThe coronal Cobb angles of the PT curve and the main thoracic (MT) curve before operation were 45.3 degrees and 61.2 degrees in group A, 35.6 degrees and 58.9 degrees in group B. After operation, they were corrected to 24.2 degrees and 20.1 degrees , 26.4 degrees and 20.3 degrees , respectively. The correction rates of the PT curve and MT curve were 48.2% and 68.7%, 24.5% and 66.3%, respectively. The correction rates of the PT curve of group A was significantly better than group B (P = 0.006), but for the MT curve, the difference was not significant (P = 0.694). The incidence of radiographic shoulder height (RSH) over than 10 mm (shoulder imbalance) after operation in group B was higher than group A significantly (P = 0.038). The incidence rate of shoulder imbalance after operation of the patients with a left higher shoulder or balance shoulder was significantly higher than that of the patients with a right higher shoulder (P = 0.015).

CONCLUSIONSFusing the PT in patients with a left shoulder not lower than right side will make better coronal correction results of the PT curve and reduce the incidence of postoperative shoulder imbalance.

Adolescent ; Child ; Female ; Follow-Up Studies ; Humans ; Male ; Postoperative Complications ; prevention & control ; Postural Balance ; Retrospective Studies ; Scoliosis ; pathology ; physiopathology ; surgery ; Shoulder ; physiopathology ; Spinal Fusion ; Thoracic Vertebrae ; pathology ; Treatment Outcome

OBJECTIVETo study the relationship between the change of coagulation and the clinicopathologic characteristics in patients with gallbladder cancer.

METHODSThe 64 gallbladder cancer patients (GBC group) and 60 cholecystitis patients (control group) had been reviewed from January 2007 to June 2013. The prothrombin time (PT), activated partial thromboplastin time (APTT), fibrinogen (Fib), and thrombin time (TT) had been measured and compared between patients of GBC group and control group. The relationship of coagulation function and prognosis were analyzed.

RESULTSCompared with control group, APTT in GBC group ((29.0 ± 4.2) s) was significantly shortened (t = -4.265, P = 0.000) and PT ((11.5 ± 1.4) s), TT ((15.3 ± 3.5) s), Fib ((4.1 ± 0.9) g/L) were significantly increased in GBC group (t = 2.521, 4.147 and 4.365, all P < 0.05). The level of Fib was higher in patients with medium or poor-differentiated tumor cells (F = 4.069, P = 0.022), lymph metastasis (t = 2.640, P = 0.010) and advanced staging (II-IV) (t = 3.003, P < 0.01) than those of well-differentiated, non-lymph metastasis and early staging (0-I). The ratio of gallbladder cancer with hyperfibrinogenemia (32/64) was significantly higher than control group (11/60, χ(2) = 13.709, P < 0.01). In GBC group, compared with normal Fib patients, hyperfibrinogenemia patients showed significantly difference in clinicopathologic characteristics (χ(2) = 5.851-10.573, P < 0.05). The average survival period of hyperfibrinogenemia patients and normal Fib patients were 8.63 months and 16.73 months. The 1-, 3-year survival rate of patients with hyperfibrinogenemia were significantly lower than those with normal Fib (64.7%, 14.9% vs. 74.9%, 21.1%, P < 0.05).

CONCLUSIONPreoperative plasma level of Fib might be a new promising biomarker in patients with gallbladder cancer for evaluating disease progression and prognosis.

Adult ; Aged ; Aged, 80 and over ; Blood Coagulation ; Case-Control Studies ; Female ; Fibrinogen ; metabolism ; Gallbladder Neoplasms ; physiopathology ; Humans ; Male ; Middle Aged ; Prognosis ; Prothrombin Time