Depression is increasingly prevalent among adolescents and can profoundly impact their lives. However, the early detection of depression is often hindered by the time-consuming diagnostic process and the absence of objective biomarkers. In this study, we propose a novel approach for depression detection based on an affective brain-computer interface (aBCI) and the resting-state electroencephalogram (EEG). By fusing EEG features associated with both emotional and resting states, our method captures comprehensive depression-related information. The final depression detection model, derived through decision fusion with multiple independent models, further enhances detection efficacy. Our experiments involved 40 adolescents with depression and 40 matched controls. The proposed model achieved an accuracy of 86.54% on cross-validation and 88.20% on the independent test set, demonstrating the efficiency of multimodal fusion. In addition, further analysis revealed distinct brain activity patterns between the two groups across different modalities. These findings hold promise for new directions in depression detection and intervention.
Humans ; Male ; Female ; Adolescent ; Case-Control Studies ; Depression/diagnosis* ; Early Diagnosis ; Rest ; Electroencephalography/methods* ; Brain-Computer Interfaces ; Models, Psychological ; Reproducibility of Results ; Affect/physiology* ; Photic Stimulation/methods* ; Video Recording ; Brain/physiopathology*

Objective: To explore the safety and feasibility of colonoscopy - assisted transanal minimally invasive surgery via glove port (CA-TAMIS-GP) in the treatment of early rectal tumors. Methods: A total of 67 patients evaluated as early rectal tumors (adenoma limited within mucosal layer) with diameter ≤4.0 cm at Department of Anal-Colorectal Surgery, Hangzhou Third People′s Hospital from July 2013 to March 2017 were prospectively enrolled in the study. Benign tumors were diagnosed by preoperative imaging in all the patients with the distance to anal edge of 4 to 20 cm. Patients were randomly divided into treatment group and the control group according to the random number table. The treatment group (n=32) underwent CA-TAMIS-GP, including 19 males and 13 females with mean age of (55.6±11.2) years and mean tumor size of (3.3±0.4) cm, while the control group (n=35) underwent endoscopic submucosal dissection (ESD, control group), including 20 males and 15 females with mean age of (52.9±12.3) years and mean tumor size of (3.4±0.5) cm. Differences of baseline data between two groups were not significant (all P>0.05). The specific method of CA-TAMIS-GP was as follows: a surgical rubber glove sleeve (No.6) was passed through the anal device; the glove was fixed at the anvil device; after fully expanding the anus, the anal sac was placed into the anus with the fingers outside; then, the cuff and the anal sac were sutured and fixed to the perianal; a well-tight glove path was established; the ultrasonic scalpel, grasper and the colonoscopy lens connected to the host platform and the electric negative pressure suction were inserted into the three finger sleeves respectively and fixed by rubber band or silk thread; the laparoscopic instruments such as the grasper and the ultrasonic scalpel were used for pulling, grasping, cutting, electrocoagulation, suturing and other operations to complete the resection of rectal lesions. Efficacy, postoperative complication and operative cost, etc. between two groups were compared using the student′s t test, chi-square tests, and Fisher′s exact test. Results: Operations of two groups were completed successfully without conversion to laparotomy. Histopathologic examination showed all specimens had negative margins with the surgical resection of the layer to the submucosa, and showed no significant differences between two groups (P>0.05). Compared to the control group, the operation time was shorter [(49.5±14.6) minutes vs.(66.1±17.6) minutes, t=-4.235, P<0.001], and the intraoperative hemorrhage was less [(4.2±1.6) ml vs. (6.2±2.1) ml, t=-4.349, P<0.001] in the treatment group with significant differences. In the treatment group, 6 patients had mild anal pain or discomfort after operation, and 1 patient in the control group showed anal foreign body sensation. The difference was statistically significant [18.8% (6/32) vs. 2.9% (1/35), P=0.048]. The incidence of postoperative hematochezia in the treatment group was lower than that in the control group [9.4% (3/32) vs. 20.0% (7/35), P=0.310] without significant difference. The cost of consumables in the treatment group was (1586.9±204.4) yuan, which was lower than (7694.4±1123.2) yuan in control group, and the difference was statistically significant (t=-30.880, P<0.001). All the patients were followed up for 6 to 36 months after operation, and no recurrence or long-term complication occurred in the treatment group, while 1 case developed local recurrence in the control group. Conclusion CA-TAMIS-GP is a safe and effective method for early rectal tumors with simple and economical characteristics, which broadens the application of colonoscopy.

Objective To explore the safety and feasibility of colonoscopy?assisted transanal minimally invasive surgery via glove port (CA?TAMIS?GP) in the treatment of early rectal tumors. Methods A total of 67 patients evaluated as early rectal tumors (adenoma limited within mucosal layer) with diameter≤4.0 cm at Department of Anal?Colorectal Surgery, Hangzhou Third People′s Hospital from July 2013 to March 2017 were prospectively enrolled in the study. Benign tumors were diagnosed by preoperative imaging in all the patients with the distance to anal edge of 4 to 20 cm. Patients were randomly divided into treatment group and the control group according to the random number table. The treatment group (n=32) underwent CA?TAMIS?GP, including 19 males and 13 females with mean age of (55.6±11.2) years and mean tumor size of (3.3 ± 0.4) cm, while the control group (n=35) underwent endoscopic submucosal dissection (ESD, control group), including 20 males and 15 females with mean age of (52.9± 12.3) years and mean tumor size of (3.4±0.5) cm. Differences of baseline data between two groups were not significant (all P>0.05). The specific method of CA?TAMIS?GP was as follows: a surgical rubber glove sleeve (No. 6) was passed through the anal device; the glove was fixed at the anvil device; after fully expanding the anus, the anal sac was placed into the anus with the fingers outside; then, the cuff and the anal sac were sutured and fixed to the perianal; a well?tight glove path was established; the ultrasonic scalpel, grasper and the colonoscopy lens connected to the host platform and the electric negative pressure suction were inserted into the three finger sleeves respectively and fixed by rubber band or silk thread; the laparoscopic instruments such as the grasper and the ultrasonic scalpel were used for pulling, grasping, cutting, electrocoagulation, suturing and other operations to complete the resection of rectal lesions. Efficacy, postoperative complication and operative cost, etc. between two groups were compared using the student′s t test, chi?square tests, and Fisher′s exact test. Results Operations of two groups were completed successfully without conversion to laparotomy. Histopathologic examination showed all specimens had negative margins with the surgical resection of the layer to the submucosa, and showed no significant differences between two groups (P>0.05). Compared to the control group, the operation time was shorter [(49.5 ± 14.6) minutes vs. (66.1 ± 17.6) minutes, t=-4.235, P<0.001], and the intraoperative hemorrhage was less [(4.2 ± 1.6) ml vs. (6.2 ± 2.1) ml, t=-4.349, P<0.001] in the treatment group with significant differences. In the treatment group, 6 patients had mild anal pain or discomfort after operation, and 1 patient in the control group showed anal foreign body sensation. The difference was statistically significant [18.8% (6/32) vs. 2.9% (1/35), P=0.048]. The incidence of postoperative hematochezia in the treatment group was lower than that in the control group [9.4% (3/32) vs. 20.0% (7/35), P=0.310] without significant difference. The cost of consumables in the treatment group was (1586.9±204.4) yuan, which was lower than (7694.4±1123.2) yuan in control group, and the difference was statistically significant (t=-30.880, P<0.001). All the patients were followed up for 6 to 36 months after operation, and no recurrence or long?term complication occurred in the treatment group, while 1 case developed local recurrence in the control group. Conclusion CA?TAMIS?GP is a safe and effective method for early rectal tumors with simple and economical characteristics, which broadens the application of colonoscopy.

Objective To explore the safety and feasibility of colonoscopy?assisted transanal minimally invasive surgery via glove port (CA?TAMIS?GP) in the treatment of early rectal tumors. Methods A total of 67 patients evaluated as early rectal tumors (adenoma limited within mucosal layer) with diameter≤4.0 cm at Department of Anal?Colorectal Surgery, Hangzhou Third People′s Hospital from July 2013 to March 2017 were prospectively enrolled in the study. Benign tumors were diagnosed by preoperative imaging in all the patients with the distance to anal edge of 4 to 20 cm. Patients were randomly divided into treatment group and the control group according to the random number table. The treatment group (n=32) underwent CA?TAMIS?GP, including 19 males and 13 females with mean age of (55.6±11.2) years and mean tumor size of (3.3 ± 0.4) cm, while the control group (n=35) underwent endoscopic submucosal dissection (ESD, control group), including 20 males and 15 females with mean age of (52.9± 12.3) years and mean tumor size of (3.4±0.5) cm. Differences of baseline data between two groups were not significant (all P>0.05). The specific method of CA?TAMIS?GP was as follows: a surgical rubber glove sleeve (No. 6) was passed through the anal device; the glove was fixed at the anvil device; after fully expanding the anus, the anal sac was placed into the anus with the fingers outside; then, the cuff and the anal sac were sutured and fixed to the perianal; a well?tight glove path was established; the ultrasonic scalpel, grasper and the colonoscopy lens connected to the host platform and the electric negative pressure suction were inserted into the three finger sleeves respectively and fixed by rubber band or silk thread; the laparoscopic instruments such as the grasper and the ultrasonic scalpel were used for pulling, grasping, cutting, electrocoagulation, suturing and other operations to complete the resection of rectal lesions. Efficacy, postoperative complication and operative cost, etc. between two groups were compared using the student′s t test, chi?square tests, and Fisher′s exact test. Results Operations of two groups were completed successfully without conversion to laparotomy. Histopathologic examination showed all specimens had negative margins with the surgical resection of the layer to the submucosa, and showed no significant differences between two groups (P>0.05). Compared to the control group, the operation time was shorter [(49.5 ± 14.6) minutes vs. (66.1 ± 17.6) minutes, t=-4.235, P<0.001], and the intraoperative hemorrhage was less [(4.2 ± 1.6) ml vs. (6.2 ± 2.1) ml, t=-4.349, P<0.001] in the treatment group with significant differences. In the treatment group, 6 patients had mild anal pain or discomfort after operation, and 1 patient in the control group showed anal foreign body sensation. The difference was statistically significant [18.8% (6/32) vs. 2.9% (1/35), P=0.048]. The incidence of postoperative hematochezia in the treatment group was lower than that in the control group [9.4% (3/32) vs. 20.0% (7/35), P=0.310] without significant difference. The cost of consumables in the treatment group was (1586.9±204.4) yuan, which was lower than (7694.4±1123.2) yuan in control group, and the difference was statistically significant (t=-30.880, P<0.001). All the patients were followed up for 6 to 36 months after operation, and no recurrence or long?term complication occurred in the treatment group, while 1 case developed local recurrence in the control group. Conclusion CA?TAMIS?GP is a safe and effective method for early rectal tumors with simple and economical characteristics, which broadens the application of colonoscopy.

Objective To investigate the clinical value of multidisciplinary team (MDT) assessment for chronic constipation.Methods The clinical characteristics of 346 patients with chronic constipation who were admitted to the Third Peolep's Hospital of Hangzhou from January 2010 to December 2013 were multidisciplinarily assessed.The muhidisciplinary team was involved surgeons from the department of colorectal surgery,urology,gynecology,psychiatry and psychology,and tools including questionnaires,defecography,anorectal manometry,colon transit study,urodynamic tests,gynecological examination were applied in the study.The measurement data with normal distribution were presented as (x) ± s,the comparison between groups was analyzed using the ANOVA,and the count data were analyzed using the chi-square test.Results Three hundred and forty-six patients who met criteria of this research were selected,including 86 males and 260 females with the ratio of 1 ∶ 3;the mean age was (55 ± 11)years.Of the 346 patients,slow transit constipation accounted for 7.52％ (26/346),defecatory disorder for 60.98％ (211/346),and mixed constipation for 31.50％ (109/346).A total of 93.85％ female patients (244/260) had anterior rectocele,75.43％ (261/346) patients had internal rectal mucosal prolapse,66.76％ (231/346) patients had perineum descending,23.99％ (83/346) had achalasia or inappropriate contraction of internal anal sphincter,18.79％ (65/346) had puborectalis rectocele muscle thickening,5.49％ (19/346) had rectal prolapse.A total of 82.37％ (285/346) patients were involved in other subjects than colorectal surgery.A total of 28.61％ (99/346) patients presented with urinary symptoms,including 65 cases with stress urinary incontinence,23 cases with unstable bladder and 19 cases with bladder neck obstruction (some patients had multiple urological systoms).The incidence of reproductive organ prolapse in female patients was 31.92％ (83/260),the incidence of uterine prolapse and anterior vaginal prolapse were 26.15％ (68/260) and 29.23％ (76/260),respectively.Patients with anxiety and/or depression accounted for 36.13％ (125/346).The male and female patients of slow transit constipation,defecatory constipation and mixed constipation were 10 vs 16,30 vs 79,46 vs 165,respectively,the age was 60 ± 12,56 ± 11,52 ± 10,showing no significant differences (x2=4.046,F =2.877,P ＞ 0.05).In the three kinds of constipation,patients with urinary diseases accounted for 26.92％ (7/26),26.61％ (29/109) and 29.86％ (63/211),patients with gynecological diseases accounted for 11.54％ (3/26),20.18％ (22/109),27.49％ (58/211),patients with psychological diseases accounted for 38.46％ (10/26),39.45％ (43/109),34.12％ (72/211),respectively,showing no significant difference (x2=4.090,P ＞ 0.05).Conclusion MDT assessment for patients with chronic constipation can reflect comprehensively clinical characteristics of chronic constipation,therefore multidisciplinary team should be emphasized in clinical diagnosis and treatment of chronic constipation.

OBJECTIVETo explore the feasibility and clinical significance of the detection of serum neutrophil gelatinase-associated lipocalin (NGAL) in human colorectal cancer.

METHODSLevels of NGAL in serum samples from 133 healthy people, 125 colorectal polyps patients and 100 colorectal cancer patients respectively were determined by sandwich ELISA assay. Relationship of NGAL level with clinicopathological features of colorectal cancer patients was analyzed. The optimal cut-off value of serum NGAL for diagnosing colorectal cancer was determined by ROC curve and compared with CEA and CA19-9. Univariate and multivariate analyses were performed to examine the relationship of NGAL level with the prognosis of patients with colorectal cancer.

RESULTSThe median serum NGAL protein level in 100 colorectal cancer cases was 67.96 (53.30-79.86) μg/L, significantly higher than that in healthy people and colorectal polyps patients. The differences were statistically significant (all P<0.01). Serum NGAL protein level was significantly associated with tumor diameter, TNM stage, lymph node metastasis and vascular involvement (P<0.05). The optimal cut-off point of serum NGAL protein level for diagnosing colorectal cancer was 49.78 μg/L, and the sensitivity and specificity were 88% and 81% respectively. As for colorectal cancer patients with stage I, the sensitivity of serum NGAL (78.9%) was significantly higher as compared to CA19-9 (31.6%) and CEA (36.8%); as for those with stage II, the sensitivity of serum NGAL(88.0%) was also significantly higher compared to CA19-9 (48.0%) and CEA (52.0%). Kaplan-Meier analysis showed that patients with positive NGAL (≥49.78 μg/L) had worse survival than those with negative NGAL (P=0.002). Multivariate analysis showed that NGAL was an independent prognostic factor (HR=2.060, 95%CI:1.023-4.150, P=0.043).

CONCLUSIONSNGAL can be served as the novel malignant biological phenotype marker for human colorectal cancer and can be used for the risk stratification. NGAL may be an independent prognostic factor in colorectal cancer.

Acute-Phase Proteins ; Adult ; Aged ; Aged, 80 and over ; Biomarkers, Tumor ; blood ; Case-Control Studies ; Colorectal Neoplasms ; blood ; diagnosis ; Early Detection of Cancer ; Female ; Humans ; Lipocalin-2 ; Lipocalins ; blood ; Male ; Middle Aged ; Prognosis ; Proto-Oncogene Proteins ; blood

OBJECTIVETo evaluate the feasibility and efficacy of transanal endoscopic microsurgery (TEM) by transanal glove port combined with colonoscopy for excision of rectal tumors.

METHODSEight patients with rectal cancer eligible for local resection were chosen to receive a procedure performed via a "glove TEM port" from October 2012 to March 2013. This device was constructed on-table using a circular anal dilator (CAD), standard surgical glove, colonoscopy instruments and straight laparoscopic instruments.

RESULTSProcedures of all the patients were completed successfully by glove TEM. The median (range) diameter of tumor was 2.6(1.5-3.5) cm, the median (range) operative time was 55.6(30-110) min. Postoperative pathology included villous adenomas (n=3), tubular adenomas (n=2), tubulovillous adenomas (n=2), serrated adenoma (n=1), low-grade intraepithelial neoplasia (n=2), and high-grade intraepithelial neoplasia (n=1). All resection margins were negative. Two patients presented with postoperative minor bleeding. There were no serious intraoperative complications. No cancer recurrence was found during a follow-up of 1-5 (median 3.1) months.

CONCLUSIONTransanal endoscopic microsurgery by transanal glove port combined with colonoscopy in the treatment of early rectal cancer is easy and safe.

Adult ; Aged ; Colonoscopy ; methods ; Female ; Follow-Up Studies ; Humans ; Male ; Microsurgery ; methods ; Middle Aged ; Rectal Neoplasms ; surgery ; Treatment Outcome

BACKGROUND:Total hip arthroplasty is known to be a successful surgical procedure to al eviate hip pain and to regain gait ability, but there are many debates on whether patients’ gait could reach a normal level several years later. OBJECTIVE:To investigate spatiotemporal parameter characters of lower extremities in patients during walking in sequela period fol owing unilateral total hip arthroplasty, and to probe into patients’ walking abilities.
METHODS:In accordance with the method of Case Database Data Analysis detected by Motion Reconstruction Laboratory, 14 patients at 5-10 years after total hip arthroplasty served as the experimental group, and 14 matched healthy persons served as the control group. Gait parameters of lower extremities during walking were col ected by Vicon Nexus. Spatiotemporal parameter characters of lower extremities during gait cycle were analyzed by using Polygon.
RESULTS AND CONCLUSION:Compared with the control group, walking speed, cadence, stride length and step length decreased, but double support and opposite foot off increased on both affected and unaffected sides in the experimental group (P<0.05). Both stride time and step time of the operated lower extremities increased (P<0.05). Foot off of non-operated lower extremities increased (P<0.05). There was no significant difference in al spatiotemporal parameters between operated and non-operated lower extremities (P>0.05). The results suggested that gaits of patients showed good gait symmetry at 5-10 years after surgery. However, they do not reach the level that observed in healthy subjects, and walking ability was poorer than normal persons. Systematic rehabilitation training is needed to improve walking ability.

Obejective To evaluate the feasibility and efficacy of transanal endoscopic microsurgery (TEM) by transanal glove port combined with colonoscopy for excision of rectal tumors. Methods Eight patients with rectal cancer eligible for local resection were chosen to receive a procedure performed via a “glove TEM port” from October 2012 to March 2013. This device was constructed on-table using a circular anal dilator(CAD),standard surgical glove,colonoscopy instruments and straight laparoscopic instruments. Results Procedures of all the patients were completed successfully by glove TEM. The median (range) diameter of tumor was 2.6 (1.5-3.5) cm,the median (range) operative time was 55.6 (30-110) min. Postoperative pathology included villous adenomas (n=3 ) , tubular adenomas ( n=2 ) , tubulovillous adenomas ( n=2 ) , serrated adenoma ( n=1 ) , low-grade intraepithelial neoplasia ( n=2 ) , and high-grade intraepithelial neoplasia ( n=1 ) . All resection margins were negative. Two patients presented with postoperative minor bleeding. There were no serious intraoperative complications. No cancer recurrence was found during a follow-up of 1-5 (median 3.1) months. Conclusion Transanal endoscopic microsurgery by transanal glove port combined with colonoscopy in the treatment of early rectal cancer is easy and safe.

Objective To explore the feasibility and clinical significance of the detection of serum neutrophil gelatinase-associated lipocalin (NGAL) in human colorectal cancer. Methods Levels of NGAL in serum samples from 133 healthy people, 125 colorectal polyps patients and 100 colorectal cancer patients respectively were determined by sandwich ELISA assay. Relationship of NGAL level with clinicopathological features of colorectal cancer patients was analyzed. The optimal cut-off value of serum NGAL for diagnosing colorectal cancer was determined by ROC curve and compared with CEA and CA19-9. Univariate and multivariate analyses were performed to examine the relationship of NGAL level with the prognosis of patients with colorectal cancer. Results The median serum NGAL protein level in 100 colorectal cancer cases was 67 . 96 ( 53 . 30-79 . 86 ) μg/L , significantly higher than that in healthy people and colorectal polyps patients. The differences were statistically significant (all P<0.01). Serum NGAL protein level was significantly associated with tumor diameter, TNM stage, lymph node metastasis and vascular involvement (P<0.05). The optimal cut-off point of serum NGAL protein level for diagnosing colorectal cancer was 49.78 μg/L, and the sensitivity and specificity were 88%and 81%respectively. As for colorectal cancer patients with stage Ⅰ, the sensitivity of serum NGAL (78.9%) was significantly higher as compared to CA19-9 (31.6%) and CEA (36.8%);as for those with stage Ⅱ, the sensitivity of serum NGAL (88.0%) was also significantly higher compared to CA19-9 (48.0%) and CEA (52.0%). Kaplan-Meier analysis showed that patients with positive NGAL (≥49.78 μg/L) had worse survival than those with negative NGAL (P=0.002). Multivariate analysis showed that NGAL was an independent prognostic factor (HR=2.060, 95%CI:1.023-4.150, P=0.043). Conclusions NGAL can be served as the novel malignant biological phenotype marker for human colorectal cancer and can be used for the risk stratification. NGAL may be an independent prognostic factor in colorectal cancer.