1.Analysis of influencing factors of perioperative ischemic stroke in non-cardiac and non-neurosurgical surgeries
Ya-Zhen BAI ; Tong-Tong ZHENG ; Meng-Nan FAN ; Yi-Ru SHANG ; Gan-Qin DU ; Qi-Zhi FU
Medical Journal of Chinese People's Liberation Army 2024;49(10):1117-1122
		                        		
		                        			
		                        			Objective To explore the incidence and risk factors of perioperative ischemic stroke in non-cardiac and non-neurosurgical surgeries and its correlation with preoperative risk assessment of cerebrovascular events,so as to guide perioperative risk management.Methods A retrospective study was conducted on 40 patients aged≥18 years who underwent non-cardiac and non-neurosurgical surgeries and experienced perioperative ischemic stroke in the First Affiliated Hospital of Henan University of Science and Technology from January 2015 to January 2022,forming the stroke group.A control group of 160 patients without perioperative ischemic stroke was selected in a 1:4 case-control ratio,matched for gender,age,date of operation,and the surgeon.Clinical data and preoperative risk assessment of cerebrovascular events(including the single or combined application of head CT/MRI,transcranial Doppler ultrasound,carotid ultrasound,and neurological consultation)of the two groups of patients were collected and statistically analyzed.Multiple logistic regression analysis was used to identify risk factors associated with perioperative ischemic stroke.Results The incidence of perioperative ischemic stroke was 0.042%.Multiple logistic analysis results showed that hypertension(OR=7.858,95%CI 2.175-28.388,P=0.002),hyperlipidemia(OR=4.457,95%CI 1.320-15.049,P=0.016),renal insufficiency(OR=8.277,95%CI 1.480-46.282,P=0.016),and intraoperative hypotension(OR=3.862,95%CI 1.211-12.317,P=0.022)were independent risk factors for perioperative ischemic stroke in non-cardiac and non-neurological surgeries;preoperative cerebrovascular risk assessment(OR=0.130,95%CI 0.031-0.542,P=0.005)was a protective factor against it.Conclusions The incidence of perioperative ischemic stroke in non-cardiac and non-neurosurgical surgery is low but has a poor prognosis.Hypertension,hyperlipidemia,renal insufficiency,and postoperative hypotension are risk factors for perioperative ischemic stroke,while preoperative cerebrovascular event risk assessment is beneficial to reducing its incidence.
		                        		
		                        		
		                        		
		                        	
2.Incidence and prognosis of olfactory and gustatory dysfunctions related to infection of SARS-CoV-2 Omicron strain: a national multi-center survey of 35 566 population.
Meng Fan LIU ; Rui Xia MA ; Xian Bao CAO ; Hua ZHANG ; Shui Hong ZHOU ; Wei Hong JIANG ; Yan JIANG ; Jing Wu SUN ; Qin Tai YANG ; Xue Zhong LI ; Ya Nan SUN ; Li SHI ; Min WANG ; Xi Cheng SONG ; Fu Quan CHEN ; Xiao Shu ZHANG ; Hong Quan WEI ; Shao Qing YU ; Dong Dong ZHU ; Luo BA ; Zhi Wei CAO ; Xu Ping XIAO ; Xin WEI ; Zhi Hong LIN ; Feng Hong CHEN ; Chun Guang SHAN ; Guang Ke WANG ; Jing YE ; Shen Hong QU ; Chang Qing ZHAO ; Zhen Lin WANG ; Hua Bin LI ; Feng LIU ; Xiao Bo CUI ; Sheng Nan YE ; Zheng LIU ; Yu XU ; Xiao CAI ; Wei HANG ; Ru Xin ZHANG ; Yu Lin ZHAO ; Guo Dong YU ; Guang Gang SHI ; Mei Ping LU ; Yang SHEN ; Yu Tong ZHAO ; Jia Hong PEI ; Shao Bing XIE ; Long Gang YU ; Ye Hai LIU ; Shao wei GU ; Yu Cheng YANG ; Lei CHENG ; Jian Feng LIU
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2023;58(6):579-588
		                        		
		                        			
		                        			Objective: This cross-sectional investigation aimed to determine the incidence, clinical characteristics, prognosis, and related risk factors of olfactory and gustatory dysfunctions related to infection with the SARS-CoV-2 Omicron strain in mainland China. Methods: Data of patients with SARS-CoV-2 from December 28, 2022, to February 21, 2023, were collected through online and offline questionnaires from 45 tertiary hospitals and one center for disease control and prevention in mainland China. The questionnaire included demographic information, previous health history, smoking and alcohol drinking, SARS-CoV-2 vaccination, olfactory and gustatory function before and after infection, other symptoms after infection, as well as the duration and improvement of olfactory and gustatory dysfunction. The self-reported olfactory and gustatory functions of patients were evaluated using the Olfactory VAS scale and Gustatory VAS scale. Results: A total of 35 566 valid questionnaires were obtained, revealing a high incidence of olfactory and taste dysfunctions related to infection with the SARS-CoV-2 Omicron strain (67.75%). Females(χ2=367.013, P<0.001) and young people(χ2=120.210, P<0.001) were more likely to develop these dysfunctions. Gender(OR=1.564, 95%CI: 1.487-1.645), SARS-CoV-2 vaccination status (OR=1.334, 95%CI: 1.164-1.530), oral health status (OR=0.881, 95%CI: 0.839-0.926), smoking history (OR=1.152, 95%CI=1.080-1.229), and drinking history (OR=0.854, 95%CI: 0.785-0.928) were correlated with the occurrence of olfactory and taste dysfunctions related to SARS-CoV-2(above P<0.001). 44.62% (4 391/9 840) of the patients who had not recovered their sense of smell and taste also suffered from nasal congestion, runny nose, and 32.62% (3 210/9 840) suffered from dry mouth and sore throat. The improvement of olfactory and taste functions was correlated with the persistence of accompanying symptoms(χ2=10.873, P=0.001). The average score of olfactory and taste VAS scale was 8.41 and 8.51 respectively before SARS-CoV-2 infection, but decreased to3.69 and 4.29 respectively after SARS-CoV-2 infection, and recovered to 5.83and 6.55 respectively at the time of the survey. The median duration of olfactory and gustatory dysfunctions was 15 days and 12 days, respectively, with 0.5% (121/24 096) of patients experiencing these dysfunctions for more than 28 days. The overall self-reported improvement rate of smell and taste dysfunctions was 59.16% (14 256/24 096). Gender(OR=0.893, 95%CI: 0.839-0.951), SARS-CoV-2 vaccination status (OR=1.334, 95%CI: 1.164-1.530), history of head and facial trauma(OR=1.180, 95%CI: 1.036-1.344, P=0.013), nose (OR=1.104, 95%CI: 1.042-1.171, P=0.001) and oral (OR=1.162, 95%CI: 1.096-1.233) health status, smoking history(OR=0.765, 95%CI: 0.709-0.825), and the persistence of accompanying symptoms (OR=0.359, 95%CI: 0.332-0.388) were correlated with the recovery of olfactory and taste dysfunctions related to SARS-CoV-2 (above P<0.001 except for the indicated values). Conclusion: The incidence of olfactory and taste dysfunctions related to infection with the SARS-CoV-2 Omicron strain is high in mainland China, with females and young people more likely to develop these dysfunctions. Active and effective intervention measures may be required for cases that persist for a long time. The recovery of olfactory and taste functions is influenced by several factors, including gender, SARS-CoV-2 vaccination status, history of head and facial trauma, nasal and oral health status, smoking history, and persistence of accompanying symptoms.
		                        		
		                        		
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Adolescent
		                        			;
		                        		
		                        			SARS-CoV-2
		                        			;
		                        		
		                        			Smell
		                        			;
		                        		
		                        			COVID-19/complications*
		                        			;
		                        		
		                        			Cross-Sectional Studies
		                        			;
		                        		
		                        			COVID-19 Vaccines
		                        			;
		                        		
		                        			Incidence
		                        			;
		                        		
		                        			Olfaction Disorders/etiology*
		                        			;
		                        		
		                        			Taste Disorders/etiology*
		                        			;
		                        		
		                        			Prognosis
		                        			
		                        		
		                        	
3.Inverted U-Shaped Associations between Glycemic Indices and Serum Uric Acid Levels in the General Chinese Population: Findings from the China Cardiometabolic Disease and Cancer Cohort (4C) Study.
Yuan Yue ZHU ; Rui Zhi ZHENG ; Gui Xia WANG ; Li CHEN ; Li Xin SHI ; Qing SU ; Min XU ; Yu XU ; Yu Hong CHEN ; Xue Feng YU ; Li YAN ; Tian Ge WANG ; Zhi Yun ZHAO ; Gui Jun QIN ; Qin WAN ; Gang CHEN ; Zheng Nan GAO ; Fei Xia SHEN ; Zuo Jie LUO ; Ying Fen QIN ; Ya Nan HUO ; Qiang LI ; Zhen YE ; Yin Fei ZHANG ; Chao LIU ; You Min WANG ; Sheng Li WU ; Tao YANG ; Hua Cong DENG ; Jia Jun ZHAO ; Lu Lu CHEN ; Yi Ming MU ; Xu Lei TANG ; Ru Ying HU ; Wei Qing WANG ; Guang NING ; Mian LI ; Jie Li LU ; Yu Fang BI
Biomedical and Environmental Sciences 2021;34(1):9-18
		                        		
		                        			Objective:
		                        			The relationship between serum uric acid (SUA) levels and glycemic indices, including plasma glucose (FPG), 2-hour postload glucose (2h-PG), and glycated hemoglobin (HbA1c), remains inconclusive. We aimed to explore the associations between glycemic indices and SUA levels in the general Chinese population.
		                        		
		                        			Methods:
		                        			The current study was a cross-sectional analysis using the first follow-up survey data from The China Cardiometabolic Disease and Cancer Cohort Study. A total of 105,922 community-dwelling adults aged ≥ 40 years underwent the oral glucose tolerance test and uric acid assessment. The nonlinear relationships between glycemic indices and SUA levels were explored using generalized additive models.
		                        		
		                        			Results:
		                        			A total of 30,941 men and 62,361 women were eligible for the current analysis. Generalized additive models verified the inverted U-shaped association between glycemic indices and SUA levels, but with different inflection points in men and women. The thresholds for FPG, 2h-PG, and HbA1c for men and women were 6.5/8.0 mmol/L, 11.0/14.0 mmol/L, and 6.1/6.5, respectively (SUA levels increased with increasing glycemic indices before the inflection points and then eventually decreased with further increases in the glycemic indices).
		                        		
		                        			Conclusion
		                        			An inverted U-shaped association was observed between major glycemic indices and uric acid levels in both sexes, while the inflection points were reached earlier in men than in women.
		                        		
		                        		
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Asian Continental Ancestry Group
		                        			;
		                        		
		                        			Blood Glucose/analysis*
		                        			;
		                        		
		                        			China/epidemiology*
		                        			;
		                        		
		                        			Cohort Studies
		                        			;
		                        		
		                        			Diabetes Mellitus/blood*
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Glucose Tolerance Test
		                        			;
		                        		
		                        			Glycated Hemoglobin A/analysis*
		                        			;
		                        		
		                        			Glycemic Index
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Uric Acid/blood*
		                        			
		                        		
		                        	
4.Advances of Sirolimus in the Treatment of Patients with Autoimmune Cytopenia---Review.
Ya-Ru WANG ; Yan-Ping MA ; Xiao-Qi QIN
Journal of Experimental Hematology 2021;29(5):1667-1670
		                        		
		                        			
		                        			Autoimmune cytopenia is a general term for all hemocytopenia diseases caused by humoral or cellular immunity abnormalities, and its common immune mechanism determines the importance of immunosuppressive therapy. Sirolimus, as an immunosuppressant against of mTOR, induces immune tolerance by adjusting Treg cells, which has application prospect in the treatment of refractory autoimmune cytopenia. This article reviews the mechanism, application, and possible adverse reactions of sirolimus in the treatment of idiopathic autoimmune cytopenia.
		                        		
		                        		
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Immunosuppressive Agents
		                        			;
		                        		
		                        			Sirolimus
		                        			;
		                        		
		                        			T-Lymphocytes, Regulatory
		                        			;
		                        		
		                        			Thrombocytopenia
		                        			
		                        		
		                        	
5.Chemical variation in Aconti Kusnezoffii Radix before and after processing based on UPLC-Orbitrap-MS.
Mei-Ru ZHI ; Xin-Ru GU ; Shu HAN ; Kai-Yang LIU ; Zi-Qin LIU ; Ya-Nan TANG ; Xi-Tao HAN ; Fei LI ; Zhi-Gang YANG ; Peng TAN ; Hai-Yu ZHAO ; Hong DU
China Journal of Chinese Materia Medica 2020;45(5):1082-1089
		                        		
		                        			
		                        			Some Chinese herbal medicine needs to be processed before it can be used as medicine, especially toxic Chinese medicine. Highly toxic Aconti Kusnezoffii Radix(Caowu in Chinese) is widely used in traditional Chinese medicine and Mongolian medicine. In traditional Chinese medicine, Caowu is usually processed by boiling with water(CW) until no white part inside and being tasted without tongue-numbing. In Mongolian medicine, it is usually soaked in Chebulae Fructus(Hezi in Chinese) decoction for several days(CH). Both methods could reduce toxicity according to reports. The biggest difference between CW and CH is that CW needs to be heated for 4-6 h, while CH needs Hezi as processing adjuvants. To explore the toxicity reduction mechanism of CW and CH, we studied the contents of various compounds in Caowu processed by two methods by UPLC-Orbitrap-MS. The results indicated that CW had 14 new ingredients, such as 14-O-anisoylneoline and dehydro-mesaconitine, while N-demethyl-mesaconitine and aconitine disappeared. At the same time, it could significantly decrease the content of diester diterpenoid alkaloids and increase the contents of monoester diterpenoid alkaloids and amine-diterpenoid alkaloids. CH had 9 new ingredients from Hezi, like gallic acid, chebulic acid and shikimic acid. Neither the kinds nor the contents of compositions from Caowu in CH changed little. This suggested that the processing mechanism of CW reduced highly toxic components(diester diterpenoid alkaloids) and increased the content of lowly toxic components(monoester diterpenoid alkaloids and amine-diterpenoid alkaloids). Attenuated principle of CH may be related to the components of Hezi. In this experiment, the conclusion shows that the chemical constituents of CW and CH are essentially different, and the two methods have different toxicity reduction principles.
		                        		
		                        		
		                        		
		                        			Aconitine
		                        			;
		                        		
		                        			Aconitum/chemistry*
		                        			;
		                        		
		                        			Alkaloids/analysis*
		                        			;
		                        		
		                        			Chemistry, Pharmaceutical/methods*
		                        			;
		                        		
		                        			Chromatography, High Pressure Liquid
		                        			;
		                        		
		                        			Drugs, Chinese Herbal/analysis*
		                        			;
		                        		
		                        			Mass Spectrometry
		                        			;
		                        		
		                        			Medicine, Chinese Traditional
		                        			
		                        		
		                        	
6.Analysis on formula of Mongolian medicine for prevention of COVID-19.
Ming-Yue JI ; Qi-Ge QI ; Lin-Tu-Ya XI ; XIAOHUA ; Ru-Han A ; Jie WANG ; Qin-Yu LI ; Gu-la A ; Min-Hui LI
China Journal of Chinese Materia Medica 2020;45(13):3013-3019
		                        		
		                        			
		                        			The epidemic situation of coronavirus disease 2019(COVID-19) is developing rapidly in the world, and the influence is serious. In this study, the prescription of Mongolian medicine to prevent new type of COVID-19 was investigated. Based on the second edition and the third edition of COVID-19 Mongolian Medicine Prevention and Treatment Guidance Program issued by the Inner Mongolia Autonomous Region Health Commission, using Excel 2007, SPSS Modeler 18, SPSS Statistics 25, Cytoscape 3.7.1 statistical software as a tool, the association rules analysis and cluster analysis of Mongolian medicine included in the standard were carried out. Among the 45 prophylactic prescriptions included in the standard, a total of 34 high-frequency drugs using frequency ≥5 were used, of which Carthami Flos(21 times, 4.46%), Chebulae Fructus(20 times, 4.26%), Moschus(13 times, 2.77%), Myristicae Semen(12 times, 2.55%), Santali Albi Lignum(12 times, 2.55%), and Bovis Calculus(12 times, 2.55%) were the most common. The main drugs for the prevention of COVID-19 were Liang(13 times, 38.23%), Wen(9 times, 26.47%), the flavor was Ku(20 times, 34.48%), Xin(13 times, 22.41%), Gan(11 times, 18.97%), the most used drugs treating hot evil(99 times, 32.46%), treatment of "Heyi" drugs(51 times, 16.72%), treatment of "Badagan" drugs(40 times, 13.11%), treatment of "sticky" drugs(37 times, 12.13%), and a cough, eliminating phlegm and antiasthmatic(31 times, 10.16%), the association rule analysis found that the highest association intensity of the drug pair combination of 11. Clustering analysis using the cluster analysis of inter-group join method found a total of 8 categories. In this study, 45 prescriptions of Mongolian medicine for the prevention of COVID-19 were collec-ted and further analyzed, hoping to provide new ideas for clinical diagnosis and treatment.
		                        		
		                        		
		                        		
		                        			Betacoronavirus
		                        			;
		                        		
		                        			China
		                        			;
		                        		
		                        			Coronavirus Infections
		                        			;
		                        		
		                        			drug therapy
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Medicine, Mongolian Traditional
		                        			;
		                        		
		                        			Pandemics
		                        			;
		                        		
		                        			Pneumonia, Viral
		                        			;
		                        		
		                        			drug therapy
		                        			
		                        		
		                        	
7.Efficacy of Moxifloxacin against in Zebrafish Model .
Wen Juan NIE ; Zhong Yao XIE ; Shan GAO ; Tian Lu TENG ; Wen Qiang ZHOU ; Yuan Yuan SHANG ; Wei JING ; Wen Hui SHI ; Qing Feng WANG ; Xue Rui HUANG ; Bao Yun CAI ; Jun WANG ; Jing WANG ; Ru GUO ; Qi Ping GE ; Li Hui NIE ; Xi Qin HAN ; Ya Dong DU ; Nai Hui CHU
Biomedical and Environmental Sciences 2020;33(5):350-358
		                        		
		                        			Objective:
		                        			Moxifloxacin (MFX) shows good activity against and can be a possible antibiotic therapy to treat infection; however, other studies have shown a lower or no activity. We aimed to evaluate MFX activity against using zebrafish (ZF) model .
		                        		
		                        			Methods:
		                        			A formulation of labeled with CM-Dil was micro-injected into ZF. Survival curves were determined by recording dead ZF every day. ZF were lysed, and colony-forming units (CFUs) were enumerated. Bacteria dissemination and fluorescence intensity in ZF were analyzed. Inhibition rates of MFX and azithromycin (AZM, positive control) were determined and compared.
		                        		
		                        			Results:
		                        			Significantly increased survival rate was observed with different AZM concentrations. However, increasing MFX concentration did not result in a significant decrease in ZF survival curve. No significant differences in bacterial burdens by CFU loads were observed between AZM and MFX groups at various concentrations. Bacterial fluorescence intensity in ZF was significantly correlated with AZM concentration. However, with increasing MFX concentration, fluorescence intensity decreased slightly when observed under fluorescence microscope. Transferring rates at various concentrations were comparable between the MFX and AZM groups, with no significant difference.
		                        		
		                        			Conclusion
		                        			MFX showed limited efficacy against using ZF model. Its activity needs to be confirmed.
		                        		
		                        		
		                        		
		                        			Animals
		                        			;
		                        		
		                        			Anti-Bacterial Agents
		                        			;
		                        		
		                        			pharmacology
		                        			;
		                        		
		                        			Disease Models, Animal
		                        			;
		                        		
		                        			Moxifloxacin
		                        			;
		                        		
		                        			pharmacology
		                        			;
		                        		
		                        			Mycobacterium Infections, Nontuberculous
		                        			;
		                        		
		                        			drug therapy
		                        			;
		                        		
		                        			Mycobacterium abscessus
		                        			;
		                        		
		                        			drug effects
		                        			;
		                        		
		                        			Zebrafish
		                        			
		                        		
		                        	
8.Effects of Shengmai Jianghuang San on intestinal flora in nude mice with radio resistant cells of nasopharyngeal carcinoma.
Jia-Bin YANG ; Dao-Qi ZHU ; Meng SHAO ; Ai-Wu LI ; Zhao-Ru LIU ; Rui-Jiao GAO ; Shi-Ya LIU ; Dan-Dan LOU ; Ying LYU ; Qin FAN
China Journal of Chinese Materia Medica 2019;44(3):553-558
		                        		
		                        			
		                        			Modern pharmacological studies have shown that Shengmai San has the effects of enhancing immunity and improving blood circulation, and Curcumae Longae Rhizoma(Jianghuang) has anti-inflammatory, anti-cancer, anti-oxidation and other functions. Shengmai San combined with Jianghuang is a new research direction in the study of anti-tumor of traditional Chinese medicines. The main treatment for nasopharyngeal carcinoma is radiation therapy, but radiation therapy can cause a variety of side effects, and it also changes the composition of the intestinal flora. In this study, the 16 s rDNA sequencing platform was used to perform macro-sequence sequencing of the intestinal flora samples of nude mice bearing the veins of Shengmai Jianghuang San, and then the results of intestinal flora data were analyzed to investigate the effect of Shengmai Jianghuang San on tumors. The results showed that Shengmai Jianghuang San combined with irradiation could enhance the therapeutic effect of tumor treatment. Radiation therapy would reduce the total number and diversity of intestinal flora in nude mice, and also change the structure of the flora. Shengmai Jianghuang San could protect the diversity of colonies, and also partially restore the colony imbalance caused by irradiation. This study provides a research idea for Shengmai Jianghuang San as a sensitizing adjuvant for radiotherapy of nasopharyngeal carcinoma.
		                        		
		                        		
		                        		
		                        			Animals
		                        			;
		                        		
		                        			Drugs, Chinese Herbal
		                        			;
		                        		
		                        			pharmacology
		                        			;
		                        		
		                        			Gastrointestinal Microbiome
		                        			;
		                        		
		                        			drug effects
		                        			;
		                        		
		                        			Mice
		                        			;
		                        		
		                        			Mice, Nude
		                        			;
		                        		
		                        			Nasopharyngeal Carcinoma
		                        			;
		                        		
		                        			radiotherapy
		                        			;
		                        		
		                        			Radiation Tolerance
		                        			;
		                        		
		                        			Radiation-Sensitizing Agents
		                        			;
		                        		
		                        			pharmacology
		                        			
		                        		
		                        	
9.FlaA gene deletion of LM90 SB2 inducing sheep encephalitis and the influence on virulence
Jing-Ya KONG ; Qiang-Qiang GUO ; Yan-Ru WANG ; Lei WANG ; Qin WU ; Jie LI ; Xun MA ; Xia ZHOU
Chinese Journal of Zoonoses 2018;34(1):1-5,11
		                        		
		                        			
		                        			The flagellin of Listeria monocytogenes is encoded by flaA gene;there is no detail report about the influence of flaA gene on the virulence of LM90 SB2.FlaA gene-deleted strain was constructed successfully with recombination technology.The influence of FlaA on LM90 SB2 virulence was evaluated by motility,BF formation,LD50,etc.Results showed that the colony morphology did not change,gene-deleted strain still had good genetic stability,but its growth was slow and the motility was decreased in the environment at 25 ℃,the morphological structure of the mutant BF was looser and incomplete,LD50 was increased from 4.27 × 106 cfu to 1.62 × 107 cfu.Results indicated that the flaA gene affected the flagellar formation of LM90 SB2 significantly,the ability of the BF formation and the virulence of the flaA deleted strain were decreased obviously.
		                        		
		                        		
		                        		
		                        	
10.Feasibility of Atrial AutoCapture™ to Detect Atrial Evoked Response: Experience from 102 Patients Implanted with Dual-chamber Pacemakers.
Hai-Long SI ; Qin QIN ; Bing-Rang ZHAO ; Gang CHEN ; Ya-Ru LU ; Lu KOU ; Jing-Yu YANG ; Wen-Hua LIN ; Zi-Wen REN
Chinese Medical Journal 2017;130(12):1411-1417
BACKGROUNDAtrial AutoCapture™ (ACap™) was a new technological development that confirmed atrial capture by analyzing evoked response (ER) with a new method - paced depolarization integral ER detection - and optimized energy output to changes in the stimulation threshold. The purpose of this study was to evaluate the clinical performance of ACap™ function.
METHODSThis was a prospective, observational, nonrandomized two-center study. Between November 2008 and August 2014, 102 patients were enrolled from two different institutions. Data were collected by case report forms at enrollment, hospital discharge, and in-office follow-ups scheduled at 1, 2, 3, 6, and 12 months postimplantation.
RESULTSAmbulatory ACap™ function started to become available for 20.6% of patients at 1 day, then progressed to 30.4% at 7 days, 38.6% at 1 month, 41.6% at 2 months, 47.5% at 3 months, 53.5% at 6 months, and 63.4% at 1 year. The cause of the unsuccessful attempts to perform ACap™ threshold was ER/polarization <2:1. Availability for SD, BND, and HOCM indications had shown better results than AVB indication. For SD indication cases, feasibility was significantly better for SD with paroxysmal atrial fibrillation (pAF) than SD without pAF (78.4% vs. 35.0% at 1 year, n = 71, P< 0.001). At each stage of the clinical follow-ups, there had been a strict correlation between ACap™ measurements and those conducted manually with P 0.001 (n = 299).
CONCLUSIONSIt has been concluded that ACap™ function was safe and effective to confirm atrial threshold and reduce energy output automatically. ACap™ function is unavailable for some patients at early stages of the implantation; however, availability has been progressively increasing during follow-up.
            
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