Objective To observe the changes in functional connectivity(FC)of raphe nucleus in patients with first-episode depression complicated with suicidal ideation(SI).Methods Ninety-eight first-episode depression patients were prospectively enrolled and assigned into SI group(n=56)or non SI group(n=42)based on complicated with SI or not,while 47 healthy volunteers were recruited as control group.Resting-state functional MRI was performed.FC between dorsal raphe nucleus(DRN),median raphe nucleus(MRN)and the whole brain were analyzed and compared among 3 groups and between each 2 groups,and the correlations of FC of different brain regions with clinical data of SI group were explored.Results Compared with control group,FC between DRN and left cerebellum and left putamen in SI group and non SI group decreased(all P＜0.05),between MRN and right inferior temporal gyrus increased but between MRN and left inferior frontal gyrus,right superior occipital gyrus,left inferior parietal lobule,left putamen decreased(all P＜0.05).FC between DRN and left putamen in SI group was higher than that in non SI group(P＜0.05).FC between MRN and right central posterior gyrus of SI group increased compared with that in the rest 2 groups(both P＜0.05).FC between MRN and left putamen in SI group was positively correlated with body mass score of Hamilton depression scale-24(HAMD-24)(rs=0.297,P=0.026).Conclusion Abnormal changes of FC between raphe nucleus and cortex,also between raphe nucleus and subcortical area occurred,and FC between MRN and left putamen positively correlated with body mass score of HAMD-24 in patients with first-episode depression complicated with SI.

Objective:To explore the early differential diagnosis method by comparing the clinical characteristics of acquired immunodeficiency syndrome (AIDS) patients complicated with tuberculous meningitis (TBM) and cryptococcus neoformans meningitis (CNM).Methods:The AIDS patients admitted to Guangzhou Eighth People′s Hospital, Guangzhou Medical University from January 2011 to February 2022 and diagnosed with combined TBM and CNM after discharge respectively were included. A retrospective study was performed to analyze the clinical features of 21 AIDS patients complicated with TBM (TBM group) and 54 AIDS patients with CNM (CNM group) (all cases were confirmed by etiology). The data of meningitis-related symptoms and signs, blood routine test, CD4 + T lymphocyte counts, imaging characteristics and cerebrospinal fluid examination at admission were collected and analyzed. Statistical analysis was performed by using independent sample t test, rank sum test or chi-square test. Results:The age of patients in the TBM group was (44.6±12.9) years old, which was older than that of patients in the CNM ((37.6±12.6) years old), the difference was statistically significant ( t=-2.15, P=0.035). Forty-eight cases (88.89%) and seven cases (12.96%) in the CNM group experienced headaches and consciousness disorders respectively, with statistically significant differences compared to those in the TBM group (13 cases (61.90%) and nine cases (42.86%), respectively) ( χ2=7.25, P=0.007 and χ2=8.05, P=0.005, respectively). The proportion of leukopenia was 27.78%(15/54), and proportion of thrombocytopenia was 16.67%(9/54) in the CNM group, which were higher than those in the TBM group (4.76%(1/21) and 0(0/21), respectively), and the differences were statistically significant ( χ2=4.77, P=0.029 and χ2=3.98, P=0.042, respectively). The CD4 + T lymphocyte count in the TBM group was 74.0(92.0)/μL, which was higher than 19.5(56.5)/μL in the CNM group, and the difference was statistically significant ( Z=-2.87, P=0.009). The CNM group had 46 cases (85.19%) with cerebrospinal fluid pressure >180 mmH 2O(1 mmH 2O=0.009 8 kPa) and 24 cases (44.44%) with cerebrospinal fluid pressure >330 mmH 2O, which were significantly higher than those in the TBM group with seven cases (33.33%) and four cases (19.05%), respectively, and the differences were statistically significant ( χ2=19.61, P<0.001 and χ2=4.17, P=0.041, respectively). Fifty-two point three eight percent (11/21) of patients in the TBM group had a white blood cell counts>200×10 6/L in the cerebrospinal fluid, which was higher than that in the CNM group (1.85%(1/54)), with a statistically significant difference ( χ2=27.23, P<0.001). The white blood cell counts, protein and adenosine deaminase levels in the cerebrospinal fluid of TBM group were significantly higher than those in the CNM group (200.00(579.50)×10 6/L vs 17.50(66.25)×10 6/L, 1 863(2 858) mg/L vs 672 (513) mg/L and 6.60 (8.55) U/L vs 1.95(2.60) U/L, respectively), and the cerebrospinal fluid chloride level was lower than that in the CNM group ((107.71±8.22) mmol/L vs (115.99±6.55) mmol/L), and all the differences were statistically significant ( Z=4.11, P<0.001, Z=21.23, P=0.008, Z=2.09, P=0.040 and t=4.57, P<0.001, respectively). There was no significant difference in cerebrospinal fluid glucose between the TBM group and the CNM group ((1.86±1.22) mmol/L vs (2.34±1.05) mmol/L, t=-1.72, P=0.090). The proportion of patients with bilateral lung lesions in the TBM group was higher than that in the CNM group, and the difference was statistically significant (100.00%(21/21) vs 40.74% (22/54), χ2=-6.53, P=0.011). Conclusions:Patients with AIDS complicated with TBM are more likely to have consciousness disorders, inflammatory response in the cerebrospinal fluid, and more bilateral lung lesions. In contrast, patients with AIDS complicated with CNM are more frequently to experience severe headache and significant elevation of cerebrospinal fluid pressure, leukopenia and thrombocytopenia, and lower peripheral blood CD4 + T lymphocyte counts.

Objective:To compare the diagnostic efficacy of 68Ga-PSMA-11 PET/ CT and multi-parameter magnetic resonance imaging (mpMRI) for pelvic lymph node metastases in prostate cancer patients who received neoadjuvant endocrinology or not after initial diagnosis. Methods:Data of 52 patients with moderate and high-risk prostate cancer admitted to Xijing Hospital from February to October 2023, aged (65.8±6.6) years, preoperative prostate-specific antigen (PSA) 26.67 (13.09, 84.89) ng/ml, were retrospectively analyzed. Before operation, there were 28 cases of cT 2stage, 16 cases of cT 3 stage and 8 cases of cT 4 stage. There were 22 cases of cN 0 and 30 cases of cN 1. All patients underwent 68Ga-PSMA-11 PET/CT and mpMRI at the same time, and were diagnosed positive lymph nodes in 28 and 21 cases, respectively. Risk stratification were high risk in 45 cases, and medium risk in 7 cases. According to the preoperative endocrine treatment, they were divided into the newly diagnosed group without treatment (24 cases) and the endocrine treated group (28 cases), whose ages were (65.0±7.1) years and (66.8±6.1) years, respectively. Preoperative PSA was 26.17 (16.73, 61.18) ng/ml and 27.32 (11.94, 130.18) ng/ml, respectively. Gleason scores ≤7 were in 10 cases (41.7%) and 6 cases (21.4%), and Gleason scores >7 were in 14 cases (58.3%) and 22 cases (78.6%), respectively. There were 15 (62.5%) and 13 (46.4%) cases of cT 1-2 stage, and 9 (37.5%) and 15 (53.6%) cases of cT 3-4 stage, respectively. There were 16 (66.7%) and 6 (21.4%) cases of stage N 0, 8 (33.3%) and 22 (78.6%) cases of stage N 1, respectively. There were 22 (91.7%) and 20 (71.4%) cases of stage M 0, 2 (8.3%) and 8 (28.6%) cases of stage M 1, respectively. PET/CT diagnosis of lymph node positive was in 9 cases (37.5%) and 19 cases (67.9%), and mpMRI diagnosis of lymph node positive was in 5 cases (20.8%) and 16 cases (57.1%). The number of positive lymph nodes diagnosed by PET/CT was 13 (72.2%) and 47 (90.1%), and the number of positive lymph nodes diagnosed by mpMRI was 8 (44.4%) and 32 (61.5%). There was no significant difference ( P>0.05). All patients underwent radical prostatectomy as well as enlarged pelvic lymph node resection. The sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) of the two imaging examinations in the diagnosis of lymph node metastasis were compared according to the results of postoperative pathological examination of lymph nodes. Receiver operating characteristic (ROC) curve was used to compare the accuracy of the two imaging tests in the diagnosis of pelvic lymph node metastasis in the newly diagnosed untreated group and the endocrine treated group. Results:In this study, of 52 cases, 26 (50.0%) had positive lymph nodes by pathological examination. In this study, a total of 681 lymph nodes were dissected, with 70 lymph nodes (10.28%) being pathologically positive, and the positive rate of 26 patients was 17.99% (70/389). The PET/CT and mpMRI detection rates of 26 node-positive patients were 92.3% (24/26) and 57.7% (15/26), respectively. There were 9 (37.5%) and 17 (60.7%) lymph node positive patients in the untreated group and the endocrine therapy group, respectively. There were 320 and 361 lymph nodes were clear, with 18 (5.6%) and 52 (14.4%) positive lymph nodes, respectively. The detection rates of PET/CT and mpMRI were 88.89% (8/9) and 94.12% (16/17)in the untreated group, and 44.44% (4/9) and 64.71% (11/17)in the endocrine treated group, respectively. In the newly treated group, the area under the curve (AUC) of PET/CT and mpMRI for diagnosing positive lymph nodes were 0.911 and 0.689 ( P=0.027), the sensitivity were 88.9% and 44.4%, and the specificity were 93.3% and 93.3%, respectively. PPV were 88.9% and 80.0%, and NPV were 93.3% and 73.7%, respectively. In the endocrine therapy group, the AUC of PET/CT and mpMRI for lymph node positive diagnosis were 0.834 and 0.596 ( P=0.011), the sensitivity were 94.1% and 64.7%, the specificity were 72.7% and 54.5%, and the PPV were 84.2% and 68.8%, respectively. NPV were 88.9% and 50.0%, respectively. Conclusions:For prostate cancer patients, regardless of whether they receive neoadjuvant endocrine therapy, 68Ga-PSMA-11 PET/CT can accurately detect pelvic lymph node metastasis, and the diagnostic efficacy is significantly better than that of mpMRI.

Objective To explore the biliary tract microbiota changes before and after drainage treatment in patients with malignant biliary obstruction(MBO),and to study the effects of biliary obstruction and drainage intervention on the bile microbiota from a microecological point of view.Methods From January 2020 to December 2022,DSA-guided percutaneous transhepatic catheter drainage(PTCD)was carried out in 32 patients with MBO.A 22G drainage needle was inserted into the bile duct,and about 15-20mL of bile was extracted after it was confirmed that the needle was located within the intrahepatic bile duct,then,an external drainage tube,or an internal drainage tube together with an external drainage tube,was implanted into the bile duct along the guide wire.Seven days after PTCD,bile was extracted through a drainage tube.Bile sampling for germiculture and gene sequencing was conducted twice.The general data of patients,including whether acute cholangitis occurred and its severity,whether antibiotics was used for treatment,etc.,were collected.Results Of the 32 patients,cholangiocarcinoma was seen in 15,pancreatic cancer in 10,hepatocellular carcinoma in 3,and hilar lymph node metastasis from gastrointestinal malignant tumor in 4.Before PTCD,in the bile microbiota the burkholderia,acinetobacter,pseudomonas and staphylococcus were the bacteria with a high relative abundance,and the diversity and evenness of other microbial species seen in the normal biliary tract were reduced.Conclusion There is a stable microbiota within the normal biliary system,and in malignant obstructive biliary tract the microbiota has similar composition.After biliary drainage,the abundance of intestinal flora in bile is increased,and the species richness and diversity of the original biliary tract microbial community are decreased,which may explain the clinical phenomenon that patients are more prone to biliary tract infection after biliary drainage.(J Intervent Radiol,2024,33:516-522)

Objective To investigate the effect of percutaneous endoscopic transforaminal discectomy(PETD)on L5-S1 lumbar disc herniation(LDH)and the influence of iliac crest height on the clinical efficacy.Methods A total of 86 patients treated with PETD for LDH(L5-S1 segment)from February 2019 to February 2018 were selected and grouped according to the relationship between the highest point of the iliac crest and the position of the L4-5 pedicle.Forty-eighty patients with the highest point of the iliac crest located below the upper edge of the L5 pedicle were included in group A;thirty-three patients with the highest point of the iliac crest located between the lower edge of the L4 pedicle and the upper edge of the L5 pedicle were included in group B,and five patients with the highest point of the iliac crest located above the lower edge of the L4 pedicle were included in group C.The operation indexes of the three groups were compared.The visual analogue score(VAS)and Oswestry Disability index(ODI)before and after surgery[preoperative(T0),1 week after surgery(T1),1 month,6 months and 12 months after surgery(T2,T3,T4)]were compared among the three groups.Results There was no difference in operation time and blood loss among the three groups(P>0.05).At T0,there was no difference in VAS score and ODI among the three groups(P>0.05).At T1-T4,when VAS score and ODI of the three groups were lower than that at T0,VAS in group A and B was lower than that in group C(P<0.05),but there was no difference between group A and B(P>0.05).Conclusion PETD has significantly clinical efficacy in the treatment of L5-S1 LDH,and whether the iliac crest height is higher than the level of the lower edge of the L4 pedicle will affect its clinical efficacy.

Objective:To explore the clinical effect of free fibular great toe flap in reconstruction of digit-tip defect with only anastomosis of artery.Methods:From February 2022 to January 2023, a total of 8 patients with digit-tip defects received reconstruction surgery using free flap of fibular great toe with anastomosis of artery only in the Department of Hand Surgery, Shunde Heping Surgical Hospital. The patients were 5 males and 3 females, with an average age of 33 (14-55) years old. Two defected digit-tips were of thumbs, 3 of index fingers, 2 of middle fingers and 1 of little finger. The digit-tip defects were 1.5 cm×0.5 cm-2.0 cm×1.2 cm in size. During the surgery, a perforator flap of fibular great toe with fibular plantar digital artery and a branch of digital nerve was harvested. And the artery and nerve carried by the flap were anastomosed to the digital artery arch and nerve of the recipient site. No reflux vein was included in the free flap due to the small size of flap. The donor sites were directly closed. Postoperative anti-infection, anti-coagulation, and anti-vasospasm were offered. Scheduled postoperative follow-ups were conducted at outpatient clinics after surgery.Results:All flaps survived smoothly without any vascular compromise. All patients were included in the follow-up with an average of 7.1 (5-13) months. At the final follow-up, the appearances of the digit-tips were full and beautiful, with recovered finger print and good stability of flaps, as well as normal sweating. All flaps had good sensation recovery, with TPD at 6.0 mm to 7.5 mm and at 6.7 mm in average. There was no significant difference in skin temperature between the donor sites and the healthy sides. According to the Evaluation Trial Standards of Upper Limb Partial Functional of Hand Surgery of Chinese Medical Association, 7 patients were rated as excellent and 1 as good.Conclusion:The clinical effect is excellent for the free flap of fibular great toe with anastomosis of artery only in the reconstruction of digit-tip defect. It not only has satisfactory reconstruction but also restores the appearance and function of the flap donor site. Worth promoting and applying in clinical practice.

Objective:To investigate the value of the 8-channel eye surface phased array coil in improving image quality and demonstrating ocular masses on 3.0 T MR scanner.Methods:From July 2018 to January 2020, the data of orbital MRI in 692 patients with ocular masses on 6 medical centers were prospectively collected. The patients were simple randomly assigned into 8-channel eye surface phased array coil group (413 patients) or 8-channel head phased array coil group (279 patients), with the same MRI sequences. The signal to noise ratio (SNR) and contrast to noise ratio (CNR) were calculated in orbital anatomy structures and masses (eyelid mass, intraocular mass, lacrimal mass and orbital mass). The image quality scores including motion artifact, mass margin, the relationship between the mass and adjacent structures, and overall image quality were recorded. The differences of image quality between the two groups were compared by two independent sample t-test or Wilcoxon rank test. Results:The SNR and CNR were higher in eye surface coil group than those in head coil group ( P<0.05). The scores of ocular movement artifacts were higher in head coil group than those in surface coil group ( P<0.05). The scores of intraocular mass margin, the relationship between the mass and adjacent structures, and overall image quality were higher in surface coil group than those in head coil group ( P<0.001). There were no significant differences in mass margin, the relationship between the mass and adjacent structures, and overall image quality scores of eyelid, lacrimal gland, and orbital mass between the two groups ( P>0.05). Conclusion:3.0 T MR scanner combined with the 8-channel eye surface phased array coil can improve the SNR and CNR of orbital MR images, the demonstration of the intraocular mass margin and the relationship between the mass and adjacent structures.

Objective:To explore the practical value of general anesthesia with non-intubated spontaneous breathing in uniportal thoracoscopic surgery in elderly patients.Methods:Clinical data of 86 elderly patients undergone uniportal thoracoscopy surgery during hospitalization at our hospital between March 2020 and December 2021 were retrospectively reviewed and analyzed.Based on the anesthesia intubation method, they were divided into a non-intubated spontaneous breathing video-assisted thoracic surgery group(NI-VATS group)and a one-lung ventilation video-assisted thoracic surgery group(OLV-VATS group), with 43 cases in each group.Data were compared on the inflammatory indexes, preparation time for anesthesia, time to awakening after anesthesia, intraoperative lung collapse score, mediastinal flutter score, time to postoperative feeding, digestive tract complications, sore throat, postoperative pulmonary atelectasis, and hospitalization time.Results:Compared with the OLV-VATS group, the NI-VATS group had a shorter anesthesia preparation time [(19.8±2.6)min vs.(32.3±4.5)min, t=-15.77, P<0.001]and a shorter time to awakening [(6.8±2.1)min vs.(11.9±2.9)min, t=-9.485, P<0.001], slightly poorer operating field during surgery, an unfavorable lung collapse score [(2.5±0.7) vs.(1.8±0.7) t=4.704, P<0.001], worse mediastinal flutter [(2.1±0.6) vs.(1.3±0.5), t=6.514, P<0.001]. Lower procalcitonin(PCT)[(0.189±0.130)μg/L vs.(0.264±0.123)μg/L, t=-2.744, P=0.007), a shorter time to postoperative feeding [(3.4±1.0)h vs.(5.5±1.0)h, t=-9.55, P<0.001], and lower rates of digestive tract reactions(4.7% vs.20.9%, χ2=5.108, P=0.024)and throat pain(4.7% vs.23.3%, χ2=6.198, P=0.013), and a shorter length of hospital stay [(3.8±0.3)d vs.(4.9±0.8)d, t=-7.266, P<0.001]. Conclusions:For the elderly patients undergoing uniportal thoracoscopic surgery, non-intubated spontaneous breathing may somewhat obstruct the operating field, but it can shorten the time of anesthesia and the time to awakening, does not increase complications from anesthesia and surgery, favors rapid postoperative recovery for patients and therefore should be promoted.

Objective:To evaluated the options in selection of surgical procedures for treatment of the patients suffering from diabetic feet with chronic refractory wounds.Methods:From January 2020 to June 2021, 23 patients with diabetic feet complicated with refractory wounds were treated in Department of Hand Surgery, Shunde Heping Surgical Hospital. The patients were 15 males and 8 females, aged 51-86 years old and with an average age of 65 years old. All the patients had Type-II diabetes for over 5 - 22 years. Average blood glucose of the patients was found at 15.6 mmol/L on admission. Free anterolateral thigh perforator flaps (ALTPF) were used for reconstruction of the wound of diabetic feet in 19 patients, 2 patients received vascular bypass surgery and 2 had amputations. Regular outpatient follow-up were conduct on all patients after surgery.Results:Follow-up time lasted for 8 to 30 months, 12 months in average. At the last follow-up, the donor and recipient sites healed well in the 19 patients who received flap reconstruction, without an infection, necrosis and wound recurrence. Pains were significantly relieved after the surgery in the 2 patients who received vascular bypass surgery, and wounds all healed well after symptomatic treatment and dressing change without recurrence of wounds at the last follow-up. Average Maryland score of foot function was 84 for the patients who had limb salvage, and 2 patients were in excellent and 19 in good at the last follow-up. The 2 patients who had amputation successfully survived through the perioperative period, and the wounds healed well at the last follow-up.Conclusion:The treatment is complicated in the patient suffering from diabetic foot with chronic refractory wounds due to factors such as advanced age, co-existing and complicated underlying diseases together with the complex wounds. Most patients can achieve good prognosis in wound treatment of free flap transfer or vascular bypass surgery. However, a limb salvage is recommended with caution for the patients who have severe infections and dry gangrene.

Ischemic brain stroke is pathologically characterized by tissue acidosis, sustained calcium entry and progressive cell death. Previous studies focusing on antagonizing N-methyl-d-aspartate (NMDA) receptors have failed to translate any clinical benefits, suggesting a non-NMDA mechanism involved in the sustained injury after stroke. Here, we report that inhibition of intracellular proton-sensitive Ca²⁺-permeable transient receptor potential vanilloid 3 (TRPV3) channel protects against cerebral ischemia/reperfusion (I/R) injury. TRPV3 expression is upregulated in mice subjected to cerebral I/R injury. Silencing of TRPV3 reduces intrinsic neuronal excitability, excitatory synaptic transmissions, and also attenuates cerebral I/R injury in mouse model of transient middle cerebral artery occlusion (tMCAO). Conversely, overexpressing or re-expressing TRPV3 increases neuronal excitability, excitatory synaptic transmissions and aggravates cerebral I/R injury. Furthermore, specific inhibition of TRPV3 by natural forsythoside B decreases neural excitability and attenuates cerebral I/R injury. Taken together, our findings for the first time reveal a causative role of neuronal TRPV3 channel in progressive cell death after stroke, and blocking overactive TRPV3 channel may provide therapeutic potential for ischemic brain injury.