1.Drilling off the Petrosal Apex and Opening the Upper Wall of Meckel’s Cave Are the Key Elements of Good Outcomes in the Treatment of Trigeminal Neuralgia Secondary to Petrous Apex Meningioma
Jie BAI ; Yufan ZHOU ; Gang SONG ; Jian REN ; Xinru XIAO
Journal of Korean Neurosurgical Society 2022;65(3):479-488
Objective:
: The surgical management of trigeminal neuralgia (TN) caused by petrous apex meningioma (PAM) is still a challenge because of the lesion’s deep location and the surrounding complex structures. The authors describe the intradural anterior transpetrosal approach (ATPA) and its effect on the treatment of TN secondary to PAM.
Methods:
: A retrospective analysis of 15 patients with TN secondary to PAM who underwent surgery via the intradural ATPA was conducted. The key techniques, which included drilling off the petrosal apex (PA) and opening the upper wall of Meckel’s cave (MC), are described in detail.
Results:
: Total removal of the tumor and complete pain relief (Barrow Neurological Institute I) were achieved in all 15 patients without significant morbidity. Five patients developed new facial numbness postoperatively, which disappeared within three months after surgery. The postoperative magnetic resonance imaging showed temporal lobe swelling in three patients, but no clinical symptoms. One patient had cerebrospinal fluid leakage and was managed with bed rest and temporary lumbar drainage. One patient had an intracranial infection and was treated with antibiotics. By the last follow up, no patients had pain relapse or/and tumor recurrence. It is worth noting that the vascular compression at the root of the trigeminal nerve was found in one patient during the operation.
Conclusion
: Our experience suggests that drilling off the PA and opening the upper wall of the MC are key elements for a good outcome of the treatment of TN secondary to PAM. The intradural ATPA has the advantages for both tumor resection and pain relief.
2.Determination of optimal threshold for hepatic artery stenosis on Doppler ultrasonography and its effect for clinical decision of treatment for patients with tardus parvus waveform after liver transplantation
Yufan LIAN ; Bowen ZHENG ; Yingyi TAN ; Ge TONG ; Tao WU ; Rongqin ZHENG ; Jie REN
Organ Transplantation 2017;8(1):54-58
Objective To analyze the optimal threshold of Doppler ultrasonography(DUS)in the diagnosis of hepatic artery stenosis(HAS)after liver transplantation and propose the diagnostic criteria of CT angiography(CTA) or digital subtraction angiography(DSA)for patients with tardus parvus waveform(TPW)in combination with liver dysfunction. Methods Clinical data of 171 patients undergoing liver transplantation, postoperative conventional DUS, liver function test, CTA or DSA were collected. The optimal threshold of resistance index(RI)and systolic acceleration time (SAT)for the diagnosis of HAS were determined by multi-level likelihood ratio(MLR). Different diagnostic criteria were established and the diagnostic efficacy was statistical y compared. Positive TPW was defined as the diagnostic criterion with low confidence, positive TPW+liver dysfunction as the moderate confidences, and positive TPW+liver dysfunction or positive TPW+optimal threshold as the high confidence. Results MLR revealed that RI<0.4 and SAT>0.12 s were the optimal threshold for the diagnosis of HAS. The specificity of diagnostic criteria with moderate and high confidence was significantly higher compared with that of the low confidence(P<0.05). Moreover, the false-positive rate was significantly decreased(P<0.05). The sensitivity of diagnostic criterion with moderate confidence was significantly lower than those of low and high confidence(both P<0.05), whereas the sensitivity did not significantly differ between the diagnostic criteria with low and high confidence(P>0.05). Conclusions For patients with positive TPW detected by DUS after liver transplantation, the optimal threshold of diagnostic criteria combined with liver dysfunction contribute to appropriate clinical decision-making for clinicians.
3.In vitro heat insulation efficacy of 5% dextrose versus 0.9% saline during radiofrequency ablation
Yanping MA ; Jinfen WANG ; Tao WU ; Bowen ZHENG ; Tinghui YIN ; Yufan LIAN ; Jie REN
Ultrasonography 2024;43(5):376-383
Purpose:
This study compared the efficacy of heat insulation between 5% dextrose and 0.9% saline in radiofrequency ablation (RFA). Accordingly, temperature variations and maximum temperatures were assessed at identical distances and heat field distributions.
Methods:
Cubes of porcine liver tissue, measuring 10 mm across, were selected to precisely align the ablation boundary with the tissue boundary. An 18-gauge electrode with a 7-mm tip was inserted into each cube (10 per group) in a stainless-steel cup containing 40 mL of 5% dextrose or 0.9% saline. Fixed ablation was performed for 3 minutes using continuous mode at 30 W, simulating the typical thermal environment during thyroid RFA. Real-time temperature measurements were recorded by sensors positioned 0, 1, 3, and 5 mm from the cube’s edge. A comparative analysis was conducted to assess the maximum temperature, temperature variation, and duration of temperatures exceeding 42℃.
Results:
In both groups, the temperature curve declined with increasing distance from the edge of the ablated tissue. However, 0.9% saline exhibited higher maximum temperatures at 1, 3, and 5 mm compared to 5% dextrose (1 mm: 44.55°C±5.25°C vs. 34.68°C±3.07°C; 3 mm: 39.64°C±2.53°C vs. 29.22°C±2.21°C; 5 mm: 38.86°C±2.14°C vs. 28.74°C±2.51°C; all P<0.001). Considering a nerve injury threshold of 42°C, the 0.9% saline also displayed a greater proportion of samples reaching this temperature and a longer duration of temperatures exceeding it (P<0.05).
Conclusion
The heat insulation efficacy of 5% dextrose at 1-5 mm exceeds that of 0.9% saline at identical distances and in a common thermal environment during thyroid RFA.
4.In vitro heat insulation efficacy of 5% dextrose versus 0.9% saline during radiofrequency ablation
Yanping MA ; Jinfen WANG ; Tao WU ; Bowen ZHENG ; Tinghui YIN ; Yufan LIAN ; Jie REN
Ultrasonography 2024;43(5):376-383
Purpose:
This study compared the efficacy of heat insulation between 5% dextrose and 0.9% saline in radiofrequency ablation (RFA). Accordingly, temperature variations and maximum temperatures were assessed at identical distances and heat field distributions.
Methods:
Cubes of porcine liver tissue, measuring 10 mm across, were selected to precisely align the ablation boundary with the tissue boundary. An 18-gauge electrode with a 7-mm tip was inserted into each cube (10 per group) in a stainless-steel cup containing 40 mL of 5% dextrose or 0.9% saline. Fixed ablation was performed for 3 minutes using continuous mode at 30 W, simulating the typical thermal environment during thyroid RFA. Real-time temperature measurements were recorded by sensors positioned 0, 1, 3, and 5 mm from the cube’s edge. A comparative analysis was conducted to assess the maximum temperature, temperature variation, and duration of temperatures exceeding 42℃.
Results:
In both groups, the temperature curve declined with increasing distance from the edge of the ablated tissue. However, 0.9% saline exhibited higher maximum temperatures at 1, 3, and 5 mm compared to 5% dextrose (1 mm: 44.55°C±5.25°C vs. 34.68°C±3.07°C; 3 mm: 39.64°C±2.53°C vs. 29.22°C±2.21°C; 5 mm: 38.86°C±2.14°C vs. 28.74°C±2.51°C; all P<0.001). Considering a nerve injury threshold of 42°C, the 0.9% saline also displayed a greater proportion of samples reaching this temperature and a longer duration of temperatures exceeding it (P<0.05).
Conclusion
The heat insulation efficacy of 5% dextrose at 1-5 mm exceeds that of 0.9% saline at identical distances and in a common thermal environment during thyroid RFA.
5.In vitro heat insulation efficacy of 5% dextrose versus 0.9% saline during radiofrequency ablation
Yanping MA ; Jinfen WANG ; Tao WU ; Bowen ZHENG ; Tinghui YIN ; Yufan LIAN ; Jie REN
Ultrasonography 2024;43(5):376-383
Purpose:
This study compared the efficacy of heat insulation between 5% dextrose and 0.9% saline in radiofrequency ablation (RFA). Accordingly, temperature variations and maximum temperatures were assessed at identical distances and heat field distributions.
Methods:
Cubes of porcine liver tissue, measuring 10 mm across, were selected to precisely align the ablation boundary with the tissue boundary. An 18-gauge electrode with a 7-mm tip was inserted into each cube (10 per group) in a stainless-steel cup containing 40 mL of 5% dextrose or 0.9% saline. Fixed ablation was performed for 3 minutes using continuous mode at 30 W, simulating the typical thermal environment during thyroid RFA. Real-time temperature measurements were recorded by sensors positioned 0, 1, 3, and 5 mm from the cube’s edge. A comparative analysis was conducted to assess the maximum temperature, temperature variation, and duration of temperatures exceeding 42℃.
Results:
In both groups, the temperature curve declined with increasing distance from the edge of the ablated tissue. However, 0.9% saline exhibited higher maximum temperatures at 1, 3, and 5 mm compared to 5% dextrose (1 mm: 44.55°C±5.25°C vs. 34.68°C±3.07°C; 3 mm: 39.64°C±2.53°C vs. 29.22°C±2.21°C; 5 mm: 38.86°C±2.14°C vs. 28.74°C±2.51°C; all P<0.001). Considering a nerve injury threshold of 42°C, the 0.9% saline also displayed a greater proportion of samples reaching this temperature and a longer duration of temperatures exceeding it (P<0.05).
Conclusion
The heat insulation efficacy of 5% dextrose at 1-5 mm exceeds that of 0.9% saline at identical distances and in a common thermal environment during thyroid RFA.
6.In vitro heat insulation efficacy of 5% dextrose versus 0.9% saline during radiofrequency ablation
Yanping MA ; Jinfen WANG ; Tao WU ; Bowen ZHENG ; Tinghui YIN ; Yufan LIAN ; Jie REN
Ultrasonography 2024;43(5):376-383
Purpose:
This study compared the efficacy of heat insulation between 5% dextrose and 0.9% saline in radiofrequency ablation (RFA). Accordingly, temperature variations and maximum temperatures were assessed at identical distances and heat field distributions.
Methods:
Cubes of porcine liver tissue, measuring 10 mm across, were selected to precisely align the ablation boundary with the tissue boundary. An 18-gauge electrode with a 7-mm tip was inserted into each cube (10 per group) in a stainless-steel cup containing 40 mL of 5% dextrose or 0.9% saline. Fixed ablation was performed for 3 minutes using continuous mode at 30 W, simulating the typical thermal environment during thyroid RFA. Real-time temperature measurements were recorded by sensors positioned 0, 1, 3, and 5 mm from the cube’s edge. A comparative analysis was conducted to assess the maximum temperature, temperature variation, and duration of temperatures exceeding 42℃.
Results:
In both groups, the temperature curve declined with increasing distance from the edge of the ablated tissue. However, 0.9% saline exhibited higher maximum temperatures at 1, 3, and 5 mm compared to 5% dextrose (1 mm: 44.55°C±5.25°C vs. 34.68°C±3.07°C; 3 mm: 39.64°C±2.53°C vs. 29.22°C±2.21°C; 5 mm: 38.86°C±2.14°C vs. 28.74°C±2.51°C; all P<0.001). Considering a nerve injury threshold of 42°C, the 0.9% saline also displayed a greater proportion of samples reaching this temperature and a longer duration of temperatures exceeding it (P<0.05).
Conclusion
The heat insulation efficacy of 5% dextrose at 1-5 mm exceeds that of 0.9% saline at identical distances and in a common thermal environment during thyroid RFA.
7.In vitro heat insulation efficacy of 5% dextrose versus 0.9% saline during radiofrequency ablation
Yanping MA ; Jinfen WANG ; Tao WU ; Bowen ZHENG ; Tinghui YIN ; Yufan LIAN ; Jie REN
Ultrasonography 2024;43(5):376-383
Purpose:
This study compared the efficacy of heat insulation between 5% dextrose and 0.9% saline in radiofrequency ablation (RFA). Accordingly, temperature variations and maximum temperatures were assessed at identical distances and heat field distributions.
Methods:
Cubes of porcine liver tissue, measuring 10 mm across, were selected to precisely align the ablation boundary with the tissue boundary. An 18-gauge electrode with a 7-mm tip was inserted into each cube (10 per group) in a stainless-steel cup containing 40 mL of 5% dextrose or 0.9% saline. Fixed ablation was performed for 3 minutes using continuous mode at 30 W, simulating the typical thermal environment during thyroid RFA. Real-time temperature measurements were recorded by sensors positioned 0, 1, 3, and 5 mm from the cube’s edge. A comparative analysis was conducted to assess the maximum temperature, temperature variation, and duration of temperatures exceeding 42℃.
Results:
In both groups, the temperature curve declined with increasing distance from the edge of the ablated tissue. However, 0.9% saline exhibited higher maximum temperatures at 1, 3, and 5 mm compared to 5% dextrose (1 mm: 44.55°C±5.25°C vs. 34.68°C±3.07°C; 3 mm: 39.64°C±2.53°C vs. 29.22°C±2.21°C; 5 mm: 38.86°C±2.14°C vs. 28.74°C±2.51°C; all P<0.001). Considering a nerve injury threshold of 42°C, the 0.9% saline also displayed a greater proportion of samples reaching this temperature and a longer duration of temperatures exceeding it (P<0.05).
Conclusion
The heat insulation efficacy of 5% dextrose at 1-5 mm exceeds that of 0.9% saline at identical distances and in a common thermal environment during thyroid RFA.
8.Efficacy and safety of Tofacitinib in treating the elderly rheumatoid arthritis
Keqin ZENG ; Erye ZHOU ; Tian REN ; Yufeng YIN ; Michun HE ; Xianming LONG ; Mingjun WANG ; Yufan GUO ; Jian WU
Chinese Journal of Geriatrics 2023;42(1):40-45
Objective:To observe the efficacy and safety of Tofacitinib in treating elderly rheumatoid arthritis(RA), in order to provide clinical evidence.Methods:In the randomized control trial, a total of 90 elderly RA patients admitted to the Department of Rheumatology of the First Affiliated Hospital of Soochow University from January 2019 to January 2021 were selected and divided into Methotrexate group(MTX group, MTX 10mg, qw, n=45)and Tofacitinib group(TOF group, oral 5mg, bid, n=45). The efficacy and safety of the two groups were evaluated at week 12.The primary endpoint was the proportion of patients meeting the American College of Rheumatology 50%(ACR50)improvement response criteria at week 12.Secondary endpoints included ACR20/70 improvement response, proportion of patients who met treat-to-target(T2T)criteria, including Disease Activity Score in 28 joints using erythrocyte sedimentation rate(DAS28-ESR), Disease Activity Score in 28 joints using C-reactive protein level(DAS28-CRP), clinical disease activity index(CDAI), and simplified disease activity index(SDAI), and patient-reported outcomes(PROs)which included changes compared to baseline in pain visual analog scale(VAS)and Health Assessment Questionnaire Disability Index(HAQ-DI)score, at week 12.Safety outcomes including drug-related adverse events, serious adverse events, dropping out due to adverse events, and deaths were assessed throughout.Results:Five patients in each group withdrew from the trial due to adverse events, and the number of patients who finally completed the observation was 40 in each group.At week 12, the ACR50 response rate was higher in TOF group than in MTX group[35%(14/40) vs.12.5%(5/40), χ2=5.591, P=0.018)], achieving the primary endpoint.When comparing TOF vs.MTX group, the ACR20 response rate[55%(22/40) vs.25%(10/40), χ2=7.500, P=0.006]and ACR70 response rate[25%(10/40) vs.7.5%(3/40), χ2=4.501, P=0.034], and proportions of indexes of disease remission including DAS28-ESR<2.6[25%(11/40) vs.7.5%(3/40), χ2=4.501, P=0.034], or DAS28-CRP<2.6[27.5%(11/40) vs.7.5%(3/40), χ2=5.541, P=0.019], or CDAI≤2.8[30%(12/40) vs.10%(4/40), χ2=5.000, P=0.025], or SDAI≤3.3[27.5%(11/40) vs.7.5%(3/40), χ2=5.541, P=0.019], and the proportions of patients with low disease activity including DAS28-ESR≤3.2[32.5%(14/40) vs.12.5%(5/40), χ2=5.591, P=0.018], or DAS28-CRP≤3.2[32.5%(14/40) vs.12.5%(5/40), χ2=5.591, P=0.018], or CDAI≤10[37.5%(15/40) vs.17.5%(7/40), χ2=4.013, P=0.045], or SDAI≤11[37.5%(15/40) vs.15%(6/40), χ2=5.230, P=0.022], as well as changes compared to baseline data in pain VAS[(26.51±8.32)scores vs.(14.16±4.39)scores, t=8.371, P<0.001]and in HAQ-DI score(0.65±0.24 vs.0.32±0.06, t=9.387, P<0.001)were all better in the TOF group than in the MTX group at week 12.During the 12-week observation period, the number of patients with infection and hyperlipidemia was higher in TOF group than in MTX group, while the number of patients with abnormal blood cell count and liver function was lower than that in MTX group, but the differences were not statistically significant(all P<0.05). Conclusions:Tofacitinib has good efficacy and safety in the elderly RA.In patients over 70 years of age who are at high risk of infection, tofacitinib should be used with caution.
9.Radiomics models based on gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid enhanced hepatobiliary phase MRI for assessing clinical pathological stage of hepatic fibrosis
Yufan REN ; Genwen HU ; Shuyuan ZHONG ; Jiaqi LYU ; Haojun LU ; Jinsen ZOU ; Xinming LI ; Xianyue QUAN
Chinese Journal of Interventional Imaging and Therapy 2024;21(2):94-99
Objective To observe the value of radiomics models based on gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid(Gd-EOB-DTPA)enhanced hepatobiliary phase(HBP)MRI for assessing clinical pathological stage of hepatic fibrosis(HF).Methods Data of 240 patients with pathologically/clinically diagnosed and clinical pathological staged HF who underwent Gd-EOB-DTPA enhanced MR examination were retrospectively analyzed.The liver-to-muscle signal intensity ratio(SIR1)and liver-to-spleen signal intensity ratio(SIR2)were measured based on HBP images.Radiomics features of HBP images were extracted and screened to construct radiomics models.The signal intensity ratio(SIR)-radiomics combined models were constructed based on SIR and radiomics signatures.Receiver operating characteristic(ROC)curves were drawn to evaluate the efficacy of each model for assessing clinical pathological stage of HF.Results The area under the curve(AUC)of SIR1 and SIR2 models for assessing clinical pathological stage of HF were 0.63-0.70 and 0.65-0.71,respectively.The most effective radiomics model for assessing HF,significant HF,advanced HF and early cirrhosis was support vector machine(SVM),SVM,light gradient boosting machine and K-nearest neighbor model,respectively,with the AUC in validation set of 0.87,0.82,0.81 and 0.80,respectively,while the AUC of SIR-radiomics combined models in validation set of 0.88,0.82,0.82 and 0.81,respectively.Conclusion The radiomics models based on Gd-EOB-DTPA enhanced HBP MRI were helpful for assessing clinical pathological stage of HF.Combining with HBP SIR could improve their efficacy.
10.A retrospective cohort study exploring clinical characteristics and treatment of hyperthyroid cardiopathy
Xiaoyun FENG ; Ninger ZHENG ; Huijing WU ; Yuwen ZHOU ; Wenqian REN ; Li ZHAO ; Fang LIU ; Yufan WANG
Chinese Journal of Endocrinology and Metabolism 2024;40(9):746-751
Objective:To retrospectively summarize the clinical characteristics and treatment of 49 patients with hyperthyroid cardiopath and to explore the diagnosis and treatment methods of hyperthyroid cardiopathy.Methods:A total of 49 patients with hyperthyroid cardiopath(HC group) who were successfully treated and followed up in the Department of Endocrinology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, from January 2016 to December 2021 were collected, and 85 cases of Graves′ disease without heart disease were collected as the control group(GD group). The medical history, laboratory tests, and echocardiographic parameters of the two groups were compared. Differences in thyroid and cardiac indicators before and after treatment in the HC group were summarized, along with the dosage of β-receptor blockers used in treating different types of conditions(atrial fibrillation and heart failure.Results:Patients in the HC group were older and had a longer duration of hyperthyroidism than those in the GD group( P<0.001, P=0.002). There were no significant differences in thyroid hormone levels between the two groups except for reverse triiodothyronine(rT 3). Age and rT 3 were independent risk factors of hyperthyroid cardiopathy. rT 3 level was linearly positively correlated with brain natriuretic peptide, systolic pulmonary artery pressure, left artrium diamete (LAD) and left ventricular end-systolic diameter(LVDs; r=0.352, P<0.001; r=0.392, P=0.019; r=0.202, P=0.029; r=0.242, P=0.028). In patients of HC group, free triiodothyronine(FT 3) level returned to normal range after 2.87(1.63, 5.53) months of treatment with radioiodine(41/49) or antithyroid drugs(8/49), while brain natriuretic peptide, LAD, LVDs, and systolic pulmonary artery pressure declined after 5.00(1.25, 8.00) months of treatment. Non-selective β-receptor blockers were used for both hyperthyroid heart failure and atrial fibrillation, and there was no statistically significant difference in dosage[(86.52±47.83)mg vs(88.67±47.19)mg, P>0.05]. Conclusions:rT 3 may be a biomarker of hyperthyroid cardiopath and indicate the severity of hyperthyroidism. β-receptor blockers are crucial in treating patients with hyperthyroidism who develop atrial fibrillation and heart failure.