1.Predictive Modeling of Symptomatic Intracranial Hemorrhage Following Endovascular Thrombectomy: Insights From the Nationwide TREAT-AIS Registry
Jia-Hung CHEN ; I-Chang SU ; Yueh-Hsun LU ; Yi-Chen HSIEH ; Chih-Hao CHEN ; Chun-Jen LIN ; Yu-Wei CHEN ; Kuan-Hung LIN ; Pi-Shan SUNG ; Chih-Wei TANG ; Hai-Jui CHU ; Chuan-Hsiu FU ; Chao-Liang CHOU ; Cheng-Yu WEI ; Shang-Yih YAN ; Po-Lin CHEN ; Hsu-Ling YEH ; Sheng-Feng SUNG ; Hon-Man LIU ; Ching-Huang LIN ; Meng LEE ; Sung-Chun TANG ; I-Hui LEE ; Lung CHAN ; Li-Ming LIEN ; Hung-Yi CHIOU ; Jiunn-Tay LEE ; Jiann-Shing JENG ;
Journal of Stroke 2025;27(1):85-94
Background:
and Purpose Symptomatic intracranial hemorrhage (sICH) following endovascular thrombectomy (EVT) is a severe complication associated with adverse functional outcomes and increased mortality rates. Currently, a reliable predictive model for sICH risk after EVT is lacking.
Methods:
This study used data from patients aged ≥20 years who underwent EVT for anterior circulation stroke from the nationwide Taiwan Registry of Endovascular Thrombectomy for Acute Ischemic Stroke (TREAT-AIS). A predictive model including factors associated with an increased risk of sICH after EVT was developed to differentiate between patients with and without sICH. This model was compared existing predictive models using nationwide registry data to evaluate its relative performance.
Results:
Of the 2,507 identified patients, 158 developed sICH after EVT. Factors such as diastolic blood pressure, Alberta Stroke Program Early CT Score, platelet count, glucose level, collateral score, and successful reperfusion were associated with the risk of sICH after EVT. The TREAT-AIS score demonstrated acceptable predictive accuracy (area under the curve [AUC]=0.694), with higher scores being associated with an increased risk of sICH (odds ratio=2.01 per score increase, 95% confidence interval=1.64–2.45, P<0.001). The discriminatory capacity of the score was similar in patients with symptom onset beyond 6 hours (AUC=0.705). Compared to existing models, the TREAT-AIS score consistently exhibited superior predictive accuracy, although this difference was marginal.
Conclusions
The TREAT-AIS score outperformed existing models, and demonstrated an acceptable discriminatory capacity for distinguishing patients according to sICH risk levels. However, the differences between models were only marginal. Further research incorporating periprocedural and postprocedural factors is required to improve the predictive accuracy.
2.Predictive Modeling of Symptomatic Intracranial Hemorrhage Following Endovascular Thrombectomy: Insights From the Nationwide TREAT-AIS Registry
Jia-Hung CHEN ; I-Chang SU ; Yueh-Hsun LU ; Yi-Chen HSIEH ; Chih-Hao CHEN ; Chun-Jen LIN ; Yu-Wei CHEN ; Kuan-Hung LIN ; Pi-Shan SUNG ; Chih-Wei TANG ; Hai-Jui CHU ; Chuan-Hsiu FU ; Chao-Liang CHOU ; Cheng-Yu WEI ; Shang-Yih YAN ; Po-Lin CHEN ; Hsu-Ling YEH ; Sheng-Feng SUNG ; Hon-Man LIU ; Ching-Huang LIN ; Meng LEE ; Sung-Chun TANG ; I-Hui LEE ; Lung CHAN ; Li-Ming LIEN ; Hung-Yi CHIOU ; Jiunn-Tay LEE ; Jiann-Shing JENG ;
Journal of Stroke 2025;27(1):85-94
Background:
and Purpose Symptomatic intracranial hemorrhage (sICH) following endovascular thrombectomy (EVT) is a severe complication associated with adverse functional outcomes and increased mortality rates. Currently, a reliable predictive model for sICH risk after EVT is lacking.
Methods:
This study used data from patients aged ≥20 years who underwent EVT for anterior circulation stroke from the nationwide Taiwan Registry of Endovascular Thrombectomy for Acute Ischemic Stroke (TREAT-AIS). A predictive model including factors associated with an increased risk of sICH after EVT was developed to differentiate between patients with and without sICH. This model was compared existing predictive models using nationwide registry data to evaluate its relative performance.
Results:
Of the 2,507 identified patients, 158 developed sICH after EVT. Factors such as diastolic blood pressure, Alberta Stroke Program Early CT Score, platelet count, glucose level, collateral score, and successful reperfusion were associated with the risk of sICH after EVT. The TREAT-AIS score demonstrated acceptable predictive accuracy (area under the curve [AUC]=0.694), with higher scores being associated with an increased risk of sICH (odds ratio=2.01 per score increase, 95% confidence interval=1.64–2.45, P<0.001). The discriminatory capacity of the score was similar in patients with symptom onset beyond 6 hours (AUC=0.705). Compared to existing models, the TREAT-AIS score consistently exhibited superior predictive accuracy, although this difference was marginal.
Conclusions
The TREAT-AIS score outperformed existing models, and demonstrated an acceptable discriminatory capacity for distinguishing patients according to sICH risk levels. However, the differences between models were only marginal. Further research incorporating periprocedural and postprocedural factors is required to improve the predictive accuracy.
3.Predictive Modeling of Symptomatic Intracranial Hemorrhage Following Endovascular Thrombectomy: Insights From the Nationwide TREAT-AIS Registry
Jia-Hung CHEN ; I-Chang SU ; Yueh-Hsun LU ; Yi-Chen HSIEH ; Chih-Hao CHEN ; Chun-Jen LIN ; Yu-Wei CHEN ; Kuan-Hung LIN ; Pi-Shan SUNG ; Chih-Wei TANG ; Hai-Jui CHU ; Chuan-Hsiu FU ; Chao-Liang CHOU ; Cheng-Yu WEI ; Shang-Yih YAN ; Po-Lin CHEN ; Hsu-Ling YEH ; Sheng-Feng SUNG ; Hon-Man LIU ; Ching-Huang LIN ; Meng LEE ; Sung-Chun TANG ; I-Hui LEE ; Lung CHAN ; Li-Ming LIEN ; Hung-Yi CHIOU ; Jiunn-Tay LEE ; Jiann-Shing JENG ;
Journal of Stroke 2025;27(1):85-94
Background:
and Purpose Symptomatic intracranial hemorrhage (sICH) following endovascular thrombectomy (EVT) is a severe complication associated with adverse functional outcomes and increased mortality rates. Currently, a reliable predictive model for sICH risk after EVT is lacking.
Methods:
This study used data from patients aged ≥20 years who underwent EVT for anterior circulation stroke from the nationwide Taiwan Registry of Endovascular Thrombectomy for Acute Ischemic Stroke (TREAT-AIS). A predictive model including factors associated with an increased risk of sICH after EVT was developed to differentiate between patients with and without sICH. This model was compared existing predictive models using nationwide registry data to evaluate its relative performance.
Results:
Of the 2,507 identified patients, 158 developed sICH after EVT. Factors such as diastolic blood pressure, Alberta Stroke Program Early CT Score, platelet count, glucose level, collateral score, and successful reperfusion were associated with the risk of sICH after EVT. The TREAT-AIS score demonstrated acceptable predictive accuracy (area under the curve [AUC]=0.694), with higher scores being associated with an increased risk of sICH (odds ratio=2.01 per score increase, 95% confidence interval=1.64–2.45, P<0.001). The discriminatory capacity of the score was similar in patients with symptom onset beyond 6 hours (AUC=0.705). Compared to existing models, the TREAT-AIS score consistently exhibited superior predictive accuracy, although this difference was marginal.
Conclusions
The TREAT-AIS score outperformed existing models, and demonstrated an acceptable discriminatory capacity for distinguishing patients according to sICH risk levels. However, the differences between models were only marginal. Further research incorporating periprocedural and postprocedural factors is required to improve the predictive accuracy.
4.Evidence analysis of clinical research on traditional Chinese medicine treatment of adenomyosis in recent ten years.
Zhi-Ran LI ; Xiao-Jun BU ; Shan HUANG ; Xing LIAO ; Rui-Hua ZHAO ; Wei-Wei SUN
China Journal of Chinese Materia Medica 2025;50(10):2853-2864
This study aims to systematically review and evaluate the quality of clinical research on the treatment of adenomyosis(AM) with traditional Chinese medicine(TCM) in recent ten years, using evidence graphs. Computer searches were conducted on eight Chinese and English databases, commonly used guideline databases, and guideline-related websites, covering the period from January 1, 2014, to October 1, 2024. Two researchers independently screened, extracted information, and evaluated the quality of the evidence. The distribution and quality of the clinical research evidence were presented using both text and charts. A total of 565 articles were included in the study, comprising 523 intervention studies, 23 observational studies, 18 systematic reviews/Meta-analysis, and 1 guideline. The overall publication volume has shown a downward trend in past two years. The sample sizes of the intervention and observational studies primarily focused on 60 to 120 cases. The intervention schemes mainly involved multi-therapy combinations, including 33 classic prescriptions and 25 Chinese patent medicines. Among these, 48 studies related to 17 classic prescriptions and 45 studies related to 10 types of Chinese patent medicines involved TCM syndrome types. Randomized controlled trial(RCT) tended to focus on overall clinical efficacy and the degree of dysmenorrhea as key outcome measures. Methodological quality issues were found in 97 RCTs related to TCM decoctions and 131 RCTs related to Chinese patent medicines, primarily involving unclear explanations of some information. The AMSTAR scores for the 18 systematic reviews/Meta-analysis ranged from 1 to 8 points, with 16 studies suggesting "evidence of potential therapeutic efficacy". The recommended level for the one included guideline was B-level. TCM shows significant advantages in treating AM. Future clinical research should further standardize study designs, reference relevant reporting guidelines, improve the quality of clinical research, generate higher-level evidence-based results, and promote the high-quality development of clinical research on TCM for treating AM.
Humans
;
Adenomyosis/drug therapy*
;
Drugs, Chinese Herbal/therapeutic use*
;
Female
;
Medicine, Chinese Traditional
;
Randomized Controlled Trials as Topic
5.Establishing of mortality predictive model for elderly critically ill patients using simple bedside indicators and interpretable machine learning algorithms.
Yulan MENG ; Jiaxin LI ; Xinqiang SHAN ; Pengyu LU ; Wei HUANG
Chinese Critical Care Medicine 2025;37(2):170-176
OBJECTIVE:
To explore the feasibility of incorporating simple bedside indicators into death predictive model for elderly critically ill patients based on interpretability machine learning algorithms, providing a new scheme for clinical disease assessment.
METHODS:
Elderly critically ill patients aged ≥ 65 years who were hospitalized in the intensive care unit (ICU) of Tacheng People's Hospital of Ili Kazak Autonomous Prefecture from June 2017 to May 2020 were retrospectively selected. Basic parameters including demographic characteristics, basic vital signs and fluid intake and output within 24 hours after admission, as well acute physiology and chronic health evaluation II (APACHE II), Glasgow coma score (GCS) and sequential organ failure assessment (SOFA) were also collected. According to outcomes in hospital, patients were divided into survival group and death group. Four datasets were constructed respectively, namely baseline dataset (B), including age, body temperature, heart rate, pulse oxygen saturation, respiratory rate, mean arterial pressure, urine output volume, infusion volume, and crystal solution volume; B+APACHE II dataset (BA), B+GCS dataset (BG), and B+SOFA dataset (BS). Then three machine learning algorithms, Logistic regression (LR), extreme gradient boosting (XGboost) and gradient boosting decision tree (GBDT) were used to develop the corresponding mortality predictive models within four datasets. The feature importance histogram of each prediction model was drawn by SHapley additive explanation (SHAP) method. The area under curve (AUC), accuracy and F1 score of each model were compared to determine the optimal prediction model and then illuminate the nomogram.
RESULTS:
A total of 392 patients were collected, including 341 in the survival group and 51 in the death group. There were statistically significant differences in heart rate, pulse oxygen saturation, mean arterial pressure, infusion volume, crystal solution volume, and etiological distribution between the two groups. The top three causes of death were shock, cerebral hemorrhage, and chronic obstructive pulmonary disease. Among the 12 prognostic models trained by three machine learning algorithms, overall performance of prognostic models based on B dataset was behind, whereas the LR model trained by BA dataset achieved the best performance than others with AUC of 0.767 [95% confidence interval (95%CI) was 0.692-0.836], accuracy of 0.875 (95%CI was 0.837-0.903) and F1 score of 0.190. The top 3 variables in this model were crystal solution volume with first 24 hours, heart rate and mean arterial pressure. The nomogram of the model showed that the total score between 150 and 230 were advisable.
CONCLUSION
The interpretable machine learning model including simple bedside parameters combined with APACHE II score could effectively identify the risk of death in elderly patients with critically illness.
Humans
;
Critical Illness
;
Machine Learning
;
Aged
;
Algorithms
;
Intensive Care Units
;
Retrospective Studies
;
APACHE
;
Prognosis
;
Organ Dysfunction Scores
;
Hospital Mortality
;
Male
;
Female
6.Lumbar temperature change after acupuncture or moxibustion at Weizhong (BL40) or Chize (LU5) in healthy adults: A randomized controlled trial.
Si-Yi ZHENG ; Xiao-Ying WANG ; Li-Nan LIN ; Shan LIU ; Xiao-Xiao HUANG ; Yi-Yue LIU ; Xiao-Shuai YU ; Wei PAN ; Jian-Qiao FANG ; Yi LIANG
Journal of Integrative Medicine 2025;23(2):145-151
BACKGROUND:
There is a gap in understanding the effects of different acupoints and treatment methods (acupuncture and moxibustion) on microcirculatory changes in the lumbar region.
OBJECTIVE:
This study aimed to assess the thermal effects of acupuncture at Weizhong (BL40), with acupuncture at Chize (LU5) and moxibustion at both acupoints as control interventions.
DESIGN, SETTING, PARTICIPANTS AND INTERVENTIONS:
In this randomized controlled trial, 140 healthy participants were equally divided into four groups: acupuncture at BL40 (Acu-BL40), acupuncture at LU5 (Acu-LU5), moxibustion at BL40 (Mox-BL40) and moxibustion at LU5 (Mox-LU5). Participants underwent a 30-minute session of their assigned treatment. Infrared thermal imaging was used to collect temperature data on the areas of interest for analysis.
MAIN OUTCOME MEASURES:
The primary measure was the change in average temperature of the observed area after the intervention. The secondary measures included periodic temperature changes every 5 min and the temperature changes of the Governor Vessel and Bladder Meridian in the observed area after the intervention.
RESULTS:
Significant interactions were observed between treatments and acupoints affecting temperature (P < 0.001). The Acu-BL40 group showed a notably higher increase in mean temperature after 30 min compared to the Acu-LU5 and Mox-BL40 groups, with increases of 0.29 (95% confidence interval [CI] = 0.17 to 0.41) and 0.24 (95% CI = 0.08 to 0.41) °C, respectively.
CONCLUSION:
Acupuncture at BL40 acupoint can significantly increase the mean temperature in the observed area, highlighting the specific thermal effect of acupuncture compared to moxibustion in the lumbar area. This suggests a potential therapeutic benefit of acupuncture at BL40 for managing lumbar conditions.
TRIAL REGISTRATION
ClinicalTrials.gov (NCT05665426). Please cite this article as: Zheng SY, Wang XY, Lin LN, Liu S, Huang XX, Liu YY, Yu XS, Pan W, Fang JQ, Liang Y. Lumbar temperature change after acupuncture or moxibustion at Weizhong (BL40) or Chize (LU5) in healthy adults: A randomized controlled trial. J Integr Med. 2025; 23(2): 145-151.
Adult
;
Female
;
Humans
;
Male
;
Young Adult
;
Acupuncture Points
;
Acupuncture Therapy
;
Body Temperature
;
Healthy Volunteers
;
Lumbosacral Region/physiology*
;
Moxibustion
;
Adolescent
8.Application of lower eyelid blepharoplasty by transconjunctival approach combined with micro-autologous fat transplantation in the rejuvenation of the infraorbital region
Tianqi ZHANG ; Wei CHEN ; Lina ZHOU ; Hao CHEN ; Qiuyue FU ; Shan ZHANG ; Jinlong HUANG ; Gang CHEN
Chinese Journal of Plastic Surgery 2024;40(10):1101-1108
Objective:To observe the clinical effect of lower eyelid blepharoplasty combined with micro-autologous fat transplantation (MAFT) in the rejuvenation of the infraorbital regions.Method:A retrospective analysis was conducted on the clinical data of patients with lower eyelid pouch and tear trough treated with lower eyelid blepharoplasty combined with MAFT in the Department of Plastic Surgery of Affiliated Hospital of Nanjing University of Chinese Medicine from March 2020 to March 2022. Patients seeked medical attention due to lower eyelid pouch and tear trough, with or without skin laxity, and some patients had varying degrees of midface depression. After preoperative examination and evaluation of the patient’s infraorbital area and midfacial depression, appropriate individualized plans were developed.The patient underwent lower eyelid blepharoplasty by transconjunctival approach combined with tear trough MAFT. For patients with low or depressed midface, midface MAFT was also performed, and for patients with skin laxity, skin removal surgery was performed simultaneously. Complications were recorded after the operation. Preoperative and postoperative photos of more than 6 months were taken with the same postion and delivered to the same doctor to grade the patient’s Barton classification (0-3 grades, with higher grade indicating more obvious tear trough deformity). The improvement of tear trough deformity after surgery was assessed, and the global aesthetic improvement scale (GAIS) score was also assessed. The patients evaluated their improvement using the patients aesthetic improvement scale (PAIS) score (GAIS and PAIS are both 1-5 points, with higher scores indicating more significant postoperative improvement). Normal distribution metric data was represented by Mean±SD, and count data was represented by frequency and/or percentage; skewed distribution metric data was represented by M ( Q1, Q3), and compared by rank sum test. Results:A total of 69 patients were enrolled, including 9 males and 60 females, aged 25-45 years, with an average age of 36.7 years. Among them, 35 patients had midfacial depression, and 11 patients had skin laxity. (0.37±0.07) ml (0.2-0.6 ml) of micro-autologous fat was injected into the orbicularis oculi muscle on each side; (0.18±0.06) ml (0.1-0.2 ml) of micro-autologous fat was injected into the subcutaneous layer on each side; (3.80±0.98) ml (3-5 ml) of micro-autologous fat was injected into the deep medial cheek fat compartment and pyriform aperture fat compartment on each side. No serious complications occurred after the surgery. Postoperative follow-up lasted for 6-13 months, with an average of 8.7 months. The patient’s lower eyelid pouch, tear trough deformity, and depression in the midface have all improved, presenting a youthful and smooth appearance from the infraorbital area to the midface. The skin texture in the lower eyelid area had also improved. At the last follow-up, the Barton classification of the lacrimal groove decreased compared with that before surgery, and the difference was statistically significant [grade 0 (0, 1) vs. grade 2 (1, 2), Z=-7.62, P<0.001]. At the last follow-up, the PAIS score of 69 patients was 5 points in 49 cases (71%) and 4 points in 20 cases (29%); doctor’s GAIS score was 5 points in 38 cases (55%), 4 points in 27 cases (39%), and 3 points in 4 cases (6%) . Conclusion:For those patients with aging status of infraorbital region, like lower eyelid pouch and tear trough deformities, the combination of lower eyelid blepharoplasty through the transconjunctival approach and MAFT can achieve good therapeutic effects. This method is safe with a short recovery time.
9.Application of lower eyelid blepharoplasty by transconjunctival approach combined with micro-autologous fat transplantation in the rejuvenation of the infraorbital region
Tianqi ZHANG ; Wei CHEN ; Lina ZHOU ; Hao CHEN ; Qiuyue FU ; Shan ZHANG ; Jinlong HUANG ; Gang CHEN
Chinese Journal of Plastic Surgery 2024;40(10):1101-1108
Objective:To observe the clinical effect of lower eyelid blepharoplasty combined with micro-autologous fat transplantation (MAFT) in the rejuvenation of the infraorbital regions.Method:A retrospective analysis was conducted on the clinical data of patients with lower eyelid pouch and tear trough treated with lower eyelid blepharoplasty combined with MAFT in the Department of Plastic Surgery of Affiliated Hospital of Nanjing University of Chinese Medicine from March 2020 to March 2022. Patients seeked medical attention due to lower eyelid pouch and tear trough, with or without skin laxity, and some patients had varying degrees of midface depression. After preoperative examination and evaluation of the patient’s infraorbital area and midfacial depression, appropriate individualized plans were developed.The patient underwent lower eyelid blepharoplasty by transconjunctival approach combined with tear trough MAFT. For patients with low or depressed midface, midface MAFT was also performed, and for patients with skin laxity, skin removal surgery was performed simultaneously. Complications were recorded after the operation. Preoperative and postoperative photos of more than 6 months were taken with the same postion and delivered to the same doctor to grade the patient’s Barton classification (0-3 grades, with higher grade indicating more obvious tear trough deformity). The improvement of tear trough deformity after surgery was assessed, and the global aesthetic improvement scale (GAIS) score was also assessed. The patients evaluated their improvement using the patients aesthetic improvement scale (PAIS) score (GAIS and PAIS are both 1-5 points, with higher scores indicating more significant postoperative improvement). Normal distribution metric data was represented by Mean±SD, and count data was represented by frequency and/or percentage; skewed distribution metric data was represented by M ( Q1, Q3), and compared by rank sum test. Results:A total of 69 patients were enrolled, including 9 males and 60 females, aged 25-45 years, with an average age of 36.7 years. Among them, 35 patients had midfacial depression, and 11 patients had skin laxity. (0.37±0.07) ml (0.2-0.6 ml) of micro-autologous fat was injected into the orbicularis oculi muscle on each side; (0.18±0.06) ml (0.1-0.2 ml) of micro-autologous fat was injected into the subcutaneous layer on each side; (3.80±0.98) ml (3-5 ml) of micro-autologous fat was injected into the deep medial cheek fat compartment and pyriform aperture fat compartment on each side. No serious complications occurred after the surgery. Postoperative follow-up lasted for 6-13 months, with an average of 8.7 months. The patient’s lower eyelid pouch, tear trough deformity, and depression in the midface have all improved, presenting a youthful and smooth appearance from the infraorbital area to the midface. The skin texture in the lower eyelid area had also improved. At the last follow-up, the Barton classification of the lacrimal groove decreased compared with that before surgery, and the difference was statistically significant [grade 0 (0, 1) vs. grade 2 (1, 2), Z=-7.62, P<0.001]. At the last follow-up, the PAIS score of 69 patients was 5 points in 49 cases (71%) and 4 points in 20 cases (29%); doctor’s GAIS score was 5 points in 38 cases (55%), 4 points in 27 cases (39%), and 3 points in 4 cases (6%) . Conclusion:For those patients with aging status of infraorbital region, like lower eyelid pouch and tear trough deformities, the combination of lower eyelid blepharoplasty through the transconjunctival approach and MAFT can achieve good therapeutic effects. This method is safe with a short recovery time.
10.Effects of different side tension pneumothorax on hemodynamic in pigs
He-Shan HUANG ; Peng-Fei LIU ; Meng-Jie DOU ; Si-Yu CHEN ; Fa-Qin LYU ; Wei CHEN
Medical Journal of Chinese People's Liberation Army 2024;49(8):897-904
Objective To explore the effects of different side tension pneumothorax on hemodynamics in pigs,providing data support for the optimization of on-site first-aid procedures for pneumothorax.Methods Twelve Bama pigs were randomly divided into left-sided tension pneumothorax group and right-sided tension pneumothorax group(6 in each group).During the occurrence of pneumothorax and as the pleural pressure gradually increases by 1 mmHg increments,the key indicators were collected using pulse indicator continuous cardiac output(PICCO)technology:hemodynamic indicators[global ejection fraction(GEF),cardiac output(CO),global end-diastolic volume(GEDV),intrathoracic blood volume(ITBV),stroke volume(SV),mean arterial pressure(MAP)],basic vital signs[heart rate(HR),diastolic blood pressure(DBP),systolic blood pressure(SBP)],and arterial blood gas parameters[partial pressure of oxygen(PO2),partial pressure of carbon dioxide(PCO2)].Mediastinal localization was subsequently performed using radiographs.Differences were investigated through comparison between the two groups and within each group before and after the procedure.Results By comparing the hemodynamic changes and X-ray examination results,twelve Bama pigs tension pneumothorax models were successfully constructed.Hemodynamic analysis showed that in left-sided tension pneumothorax model when the pleural pressure reached 8 mmHg,SBP,DBP,MAP,CO,GEF,SV,GEDV and ITBV were significantly lower than those during the occurrence of ipsilateral pneumothorax(P<0.05).In right-sided tension pneumothorax model,when the pleural pressure reached about 3 mmHg,SBP,DBP,MAP,SV,GEDV,and ITBV were significantly lower than those during the occurrence of ipsilateral pneumothorax(P<0.05).Blood gas analysis showed that at 8 mmHg for left-sided and 3 mmHg for right-sided tension pneumothorax,compared with the occurrence of their respective ipsilateral pneumothorax,PO2 was significantly lower(P<0.05)and PCO2 was significantly higher(P<0.05).Conclusions There are different effects on hemodynamics in different side tension pneumothorax.Compared with left tension pneumothorax,right tension pneumothorax can lead to serious consequences under a smaller pleural pressure.Different side tension pneumothorax models can be constructed according to the actual situation when performing pneumothorax related experiments.

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