1.Therapeutic effects of modified plantar skin grafting for the deep burn wounds of the back and butts
Shurun HUANG ; Hui LIN ; Chun ZENG ; Jiangtao LIU ; Weiqi YE ; Yiyong WANG ; Huiqiang SU
Chinese Journal of Trauma 2024;40(3):243-249
Objective:To compare the therapeutic effects of modified plantar skin grafting and thigh skin grafting on the deep burn wounds of the back and buttocks.Methods:A retrospective cohort study was conducted to analyze the clinical data of 30 patients with deep burn wounds on their back and buttocks who were admitted to the 910th Hospital of Joint Logistic Support Force of PLA from January 2021 to April 2023, including 26 males and 4 females, aged 21-72 years [(49.9±14.0)years]. The total burn size was 50%-97% of the total body surface area (TBSA), with the third-degree burn on the back and buttocks 6%-16% TBSA. The burn wounds on the back and buttocks were repaired using plantar skin grafts alone, thigh skin grafts alone or plantar skin grafts combined with the grafts from other body parts. The patients were grouped according to the skin graft donor sites and the times of harvesting skin grafts: there were 20 patients undergone plantar skin grafting including 10 patient with plantar skin graft harvested once (group of plantar skin graft harvested once) and 10 patients with plantar skin graft harvested twice or three times (group of plantar skin graft harvested more than once), and 10 patients undergone thigh skin grafting harvested once (group of thigh skin graft harvested once). The areas of plantar skin grafts harvested at the last time and the wound areas on the back and butts that could be repaired each time were calculated. After the last harvest, the thickness of the stratum corneum, 7-day survival rate of the skin grafts, proportion of 3-month residual wound area in the skin graft area, healing time of the donor sites, and 6-month Vancouver Scar Scale (VSS) scores of the donor sites in the group of plantar skin graft harvested once were compared with those in the group of thigh skin graft harvested once and the group of plantar skin graft harvested more than once. The appearance and texture of the skin graft, patients′ walking patterns and complications were observed at 6 months after the last skin harvest.Results:All the patients were followed up for 6-18 months [(7.8±1.6)months]. In the 20 patients with plantar skin grafts harvested, the areas of skin grafts harvested at the last time were 2.5%-4.5% TBSA [(3.4±0.6)% TBSA] and the wound areas that could be repaired each time were 3%-8% TBSA [(5.5±1.5)% TBSA]. After the last harvest, the thickness of the stratum corneum in the group of plantar skin graft harvested once was (190.4±8.9)μm, which was significantly thicker than that in the group of thigh skin graft harvested once [(50.0±6.6)μm] and that in the group of plantar skin graft harvested more than once [(166.8±21.9)μm] ( P<0.01); the 7-day survival rate of the skin grafts, proportion of 3-month residual wound area in the skin graft area, healing time of the donor sites, and 6-month VSS scores of the donor sites were (93.6±2.3)%, 2.0 (0.1, 3.5)%, (9.9±1.8)days and (1.7±0.7)points in the group of plantar skin graft harvested once, (78.0±6.6)%, 5.3 (4.0, 5.8)%, (14.0±1.4)days and (4.9±2.3)points in the group of thigh skin graft harvested once, and (93.4±2.6) %, 2.0 (0.1, 3.8)%, (10.0±1.2)days and (1.8±0.8)points in the group of plantar skin graft harvested more than once. The group of plantar skin graft harvested once showed a significant increase in the 7-day survival rate and a significant decrease in the proportion of 3-month residual wound area in the skin graft area, healing time of the donor sites, and 6-month VSS scores of the donor sites in comparison with the group of thigh skin graft harvested once ( P<0.05 or 0.01), while there were no significant differences in above mentioned indices between the group of plantar skin graft harvested once and the group of plantar skin graft harvested more than once ( P>0.05). At 6 months after the last skin harvest, the skin graft areas on the back and buttocks were flat, hard and firm and all the patients in the three groups could walk normally, with no complications such as severe itching, pain or folliculitis in the skin graft area. Conclusions:In the treatment of burn wounds on the back and buttocks, compared with thigh skin grafting, modified plantar skin grafting has advantages of thicker stratum corneum, better wear resistance and pressure resistance in the skin graft areas, a higher survival rate of skin grafts, rapid healing, mild scar, and undisturbed walking pattern after surgery and no common complications. Moreover, skin grafts can be harvested repeatedly from the donor sites, with no impact on the therapeutic effects.
2.Summary of best evidence for management of skin complications in children with percutaneous endoscopic gastrostomy
Xiaoyu LI ; Huilin ZENG ; Huiqiang LI ; Shaoyong LIU ; Dan LI ; Yu ZOU
Chinese Journal of Modern Nursing 2024;30(22):2978-2983
Objective:To retrieve, evaluate, and integrate the best evidence for the management of skin complications in children with percutaneous endoscopic gastrostomy (PEG) .Methods:Evidence on skin complications in children with PEG was systematically searched on BMJ Best Practice, UpToDate, CINAHL, Cochrane Library, Embase, Medline, National Institute for Health and Clinical Excellence (NICE), PubMed, Web of Science, Joanna Briggs Institute Evidence-Based Health Care Center Database in Australia, China Biology Medicine disc, China National Knowledge Infrastructure, WanFang Data, Chinese Medical Journal Full-text Database, Medlive and other domestic and foreign databases. The search period was from database establishment to August 31, 2023. Three evidence-based nursing professionals conducted quality evaluation, evidence extraction, and summarization of retrieved literature.Results:A total of six articles were included, including three guidelines, one clinical decision and two expert consensus. Eighteen pieces of evidence were formed from four aspects of perioperative nursing, ostomy tube nursing, complication management, and health education.Conclusions:The best evidence for management of skin complications in children with PEG summarized is of high quality and strong authority, which can provide evidence-based support for medical and nursing staff, aiming to reduce the incidence of skin complications in children with PEG and ensure patient safety.
3.Efficacy and safety of mitoxantrone hydrochloride liposome injection in treatment of peripheral T-cell lymphomas: a multicenter, non-interventional, ambispective cohort, real-world study (MOMENT)
Huiqiang HUANG ; Zhiming LI ; Lihong LIU ; Liang HUANG ; Jie JIN ; Hongyan TONG ; Hui ZHOU ; Zengjun LI ; Zhenqian HUANG ; Wenbin QIAN ; Kaiyang DING ; Quande LIN ; Ming HOU ; Yunhong HUANG ; Jingbo WANG ; Pengcheng HE ; Xiuhua SUN ; Xiaobo WANG ; Zunmin ZHU ; Yao LIU ; Jinhai REN ; Huijing WU ; Liling ZHANG ; Hao ZHANG ; Liangquan GENG ; Jian GE ; Ou BAI ; Liping SU ; Guangxun GAO ; Xin LI ; Yanli YANG ; Yijian CHEN ; Aichun LIU ; Xin WANG ; Yi WANG ; Liqun ZOU ; Xiaobing HUANG ; Dongping HUANG ; Shujuan WEN ; Donglu ZHAO ; Jun MA
Journal of Leukemia & Lymphoma 2023;32(8):457-464
Objective:To evaluate the efficacy and safety of mitoxantrone hydrochloride liposome injection in the treatment of peripheral T-cell lymphoma (PTCL) in a real-world setting.Methods:This was a real-world ambispective cohort study (MOMENT study) (Chinese clinical trial registry number: ChiCTR2200062067). Clinical data were collected from 198 patients who received mitoxantrone hydrochloride liposome injection as monotherapy or combination therapy at 37 hospitals from January 2022 to January 2023, including 166 patients in the retrospective cohort and 32 patients in the prospective cohort; 10 patients in the treatment-na?ve group and 188 patients in the relapsed/refractory group. Clinical characteristics, efficacy and adverse events were summarized, and the overall survival (OS) and progression-free survival (PFS) were analyzed.Results:All 198 patients were treated with mitoxantrone hydrochloride liposome injection for a median of 3 cycles (range 1-7 cycles); 28 cases were treated with mitoxantrone hydrochloride liposome injection as monotherapy, and 170 cases were treated with the combination regimen. Among 188 relapsed/refractory patients, 45 cases (23.9%) were in complete remission (CR), 82 cases (43.6%) were in partial remission (PR), and 28 cases (14.9%) were in disease stabilization (SD), and 33 cases (17.6%) were in disease progression (PD), with an objective remission rate (ORR) of 67.6% (127/188). Among 10 treatment-na?ve patients, 4 cases (40.0%) were in CR, 5 cases (50.0%) were in PR, and 1 case (10.0%) was in PD, with an ORR of 90.0% (9/10). The median follow-up time was 2.9 months (95% CI 2.4-3.7 months), and the median PFS and OS of patients in relapsed/refractory and treatment-na?ve groups were not reached. In relapsed/refractory patients, the difference in ORR between patients with different number of treatment lines of mitoxantrone hydrochloride liposome injection [ORR of the second-line, the third-line and ≥the forth-line treatment was 74.4% (67/90), 73.9% (34/46) and 50.0% (26/52)] was statistically significant ( P = 0.008). Of the 198 PTCL patients, 182 cases (91.9%) experienced at least 1 time of treatment-related adverse events, and the incidence rate of ≥grade 3 adverse events was 66.7% (132/198), which was mainly characterized by hematologic adverse events. The ≥ grade 3 hematologic adverse events mainly included decreased lymphocyte count, decreased neutrophil count, decreased white blood cell count, and anemia; non-hematologic adverse events were mostly grade 1-2, mainly including pigmentation disorders and upper respiratory tract infection. Conclusions:The use of mitoxantrone hydrochloride liposome injection-containing regimen in the treatment of PTCL has definite efficacy and is well tolerated, and it is a new therapeutic option for PTCL patients.
4.Research progress in chemical composition and pharmacological action of Astragali Radix and Atractylodis Macrocephalae Rhizoma
Huiqiang LIU ; Guangli YAN ; Ling KONG ; Yu GUAN ; Xijun WANG
International Journal of Traditional Chinese Medicine 2023;45(9):1192-1196
After the compatibility of Astragali Radix and Atractylodis Macrocephalae Rhizoma, most of the effective components of Astragali Radix increase, and the bioavailability is improved. Compared with the application of the two drugs alone, it can enhance the effects of immune regulation, anti-tumor, diuresis, lung protection, regulation of flora, and intestinal protection. However, the optimal compatibility ratio of Astragali Radix- Atractylodis Macrocephalae Rhizoma pair to exert various pharmacological effects still needs to be clarified. The drug pair and related preparations are mostly used in the treatment of nephropathy, but its mechanism of action needs to be further elucidated.
5.Clinical effects of plantar split-thickness skin grafts in repairing the deep burn wounds in the back and buttocks
Shurun HUANG ; Huiqiang SU ; Yiyong WANG ; Jiangtao LIU ; Yong ZHANG ; Bo ZHOU ; Meiping ZHUANG
Chinese Journal of Burns 2023;39(4):371-375
Objective:To explore the clinical effects of plantar split-thickness skin grafts in repairing the deep burn wounds in the back and buttocks.Methods:A retrospective observational study was conducted. From January 2011 to February 2022, 98 patients with deep burn who met the inclusion criteria were admitted to the 910 th Hospital of Joint Service Support Unit of PLA, including 64 males and 34 females, aged 17 to 78 years, with total burn areas of 35%-95% total body surface area (TBSA). The area of full-thickness burns in the back and buttocks ranged from 5% to 17% TBSA and the wounds were repaired only using stamp-shaped split-thickness skin grafts from plantar areas of both feet or combined with Meek microskin grafts or stamp-shaped skin grafts from other sites. According to the times of skin graft harvesting from both soles, these patients were divided into one-harvesting group (29 cases), two-harvesting group (38 cases), three-harvesting group (21 cases), and four-harvesting group (10 cases). The area of skin grafts harvested each time from both soles, the healing time of donor sites after each skin graft harvesting, and the survival rate of plantar skin graft in recipient site at 7 days after each skin graft harvesting in 98 patients, the interval between two adjacent skin graft harvesting in 69 patients with skin grafts harvested twice or more, as well as the healing time of donor site and survival rate of skin graft in recipient site after the last skin graft harvesting from both soles of patients in the 4 groups were recorded. The patients were followed up to observe the appearance, texture, and scar in recipient site of plantar skin grafts as well as the scar and function in plantar donor sites. Data were statistically analyzed with one-way analysis of variance, Kruskal-Wallis test, and chi-square test. Results:In the 98 patients, the area of skin graft was 2.0%-4.5% ((3.4±0.6)%) TBSA harvested each time from both soles, the healing time of donor site after each skin graft harvesting was 7-10 (7.8±1.1) d, and the survival rate of plantar skin graft in recipient site at 7 days after each skin graft harvesting was 93% (92%, 95%). The interval between two adjacent skin graft harvesting in the 69 patients was 7-38 (11.2±0.5) d. The healing time of donor site and survival rate of skin graft in recipient site after the last skin graft harvesting from both soles of patients in the 4 groups showed no statistically significant differences ( P>0.05). A total of 88 patients were followed up for 3 months to 5 years, the appearance in recipient site of plantar skin graft was smooth, the texture was firm, the scar hyperplasia was mild, and the area was compressive- and wear-resistant. Among them, the plantar donor site recovered well in 85 patients, without obvious scar hyperplasia and only 3 patients had small area of scar hyperplasia in the non-weight-bearing areas which did not affect walking or wearing shoes or socks. Ten patients were lost in the follow up after discharge. Conclusions:Stamp-shaped split-thickness skin grafts can be repeatedly harvested from both soles of patient to repair the deep burn wounds in the back and buttocks, with high survival rate of skin grafts, thus can reduce the burden of other donor sites. Moreover, the skin grafts have good wear-resistance and pressure-resistance, without affecting postoperative normal walk.
6.Bendamustine monotherapy for Chinese patient treatment with relapsed or refractory B cell non-Hodgkin lymphoma: a phase Ⅱ, prospective, multicenter, single-arm study
Yan GAO ; Yu YANG ; Hong CEN ; Hong LIU ; Jinxiang FU ; Shunqing WANG ; Ru FENG ; Ding YU ; Xinyou ZHANG ; Zhuowen CHEN ; Yufu LI ; Huiqiang HUANG
Chinese Journal of Hematology 2022;43(11):934-939
Objective:To evaluate the efficacy and safety of bendamustine monotherapy in Chinese patients with relapsed/refractory (R/R) B cell non-Hodgkin lymphoma (B-NHL) .Methods:This prospective, multicenter, open label, single-arm, phase Ⅱ study investigated bendamustine’s efficacy and safety in Chinese patients with R/R B-NHL. A total of 78 patients with B-NHL in 11 hospitals in China from March 2012 to December 2016 were included, and their clinical characteristics, efficacy, and survival were analyzed.Results:The median age of all patients was 58 (range, 24-76) years old, and 69 (88.4% ) patients had stage Ⅲ/Ⅳ disease. 61 (78.2% ) patients were refractory to previous treatments. Patients received a median of 4 (range, 1-10) cycles of bendamustine treatment. The overall response rate was 61.5 (95% CI 49.8-72.3) % , the median response duration was 8.3 (95% CI 5.5-14.0) months, and the complete remission (CR) rate was 5.1 (95% CI 1.4-12.6) % . In the full analysis set, median progression-free survival (PFS) and median OS were 8.7 (95% CI 6.7-13.2) months and 25.5 months (95% CI 14.2 months to not reached) , respectively, after a median follow-up of 33.6 (95% CI 17.4-38.8) months. Lymphopenia (74.4% ) , neutropenia (52.6% ) , and leukopenia (39.7% ) , thrombocytopenia (29.5% ) and anemia (15.4% ) were the most common grade 3-4 hematologic adverse events (AE) . The most frequent non-hematologic AEs included nausea (43.6% ) , vomiting (33.3% ) , and anorexia (29.5% ) . Univariate and multivariate analysis showed that <4 cycles of bendamustine treatment was a poor prognostic factor for PFS ( P=0.003) , and failure to accept fludarabine containing regimen was a poor prognostic factor for OS ( P=0.009) . Conclusion:Bendamustine monotherapy has good efficacy and safety in the treatment of patient with R/R B-NHL.
7.Mental health status among non-psychiatric inpatients in a general hospital
Yizhong SHEN ; Shuai YUAN ; Jingwen LIU ; Zilin CHEN ; Lijiao ZHENG ; Lihao CHEN ; Hanwei CHEN ; Huiqiang FENG ; Hongbo HE
Sichuan Mental Health 2021;34(6):533-539
ObjectiveTo analyze the mental health status of non-psychiatric inpatients in a general hospital, and to explore the relevant influencing factors, so as to provide references for the screening of mental health problems and the construction of intervention models among non-psychiatric inpatients. MethodsA cross-sectional study was conducted among 916 non-psychiatric inpatients in a third grade class A general hospital in Guangzhou, and all the inpatients were assessed using Patient Health Questionnaire-9 item (PHQ-9), Generalized Anxiety Disorder-7 item (GAD-7), Athens Insomnia Scale (AIS) and Columbia-Suicide Severity Rating Scale (C-SSRS) to detect their depression, anxiety, insomnia and suicide risk status. Thereafter, univariate and multivariate Logistic regression analysis were used to screen the risk factors affecting the mental health of inpatients. ResultsA total of 339 (37.0%) inpatients with positive mental health problems were screened, and the screening results for each dimension revealed 218 cases (23.8%) of depression, 141 cases (15.4%) of anxiety, 257 cases (28.1%) of insomnia, 42 cases (4.6%) of suicidal ideation and 7 cases (0.8%) of suicidal behavior. Binary Logistic regression analysis showed that female (OR=1.379, P<0.05) was a risk factor for positive screening of mental health problems. Ordinal Logistic regression analysis denoted that age above 60 years old (OR=1.542, P<0.05) and singlehood (OR=2.055, P<0.05) were risk factors affecting the severity of depression, while senior high school to junior college education (OR=0.524, P<0.05) was a protective factor of depression, meantime, female (OR=1.472, P<0.05) was a risk factor affecting the severity of insomnia. ConclusionMental health problems are quite common among non-psychiatric inpatients in general hospitals, and are mainly affected by factors such as gender, age, marital status and educational background.
8.Outcome of radiotherapy for low-risk early-stage patients with extranodal NK/T-cell lymphoma, nasal-type
Xiaodan WANG ; Xin LIU ; Tao WU ; Yong YANG ; Shunan QI ; Xia HE ; Liling ZHANG ; Gang WU ; Baolin QU ; Liting QIAN ; Xiaorong HOU ; Fuquan ZHANG ; Xueying QIAO ; Hua WANG ; Gaofeng LI ; Yuan ZHU ; Jianzhong CAO ; Junxin WU ; Suyu ZHU ; Mei SHI ; Hang SU ; Ximei ZHANG ; Huilai ZHANG ; Huiqiang HUANG ; Yujing ZHANG ; Yuqin SONG ; Jun ZHU ; Ying WANG ; Yexiong LI
Chinese Journal of Oncology 2021;43(10):1105-1113
Objective:To evaluate the prognosis and determine the failure patterns after radiotherapy for low-risk early-stage patients with extranodal NK/T-cell lymphoma, nasal-type (ENKTCL).Methods:A total of 557 patients from 2000—2015 with low-risk early-stage ENKTCL who received radiotherapy (RT) with or without chemotherapy (CT) from China Lymphoma Collaborative Group were retrospectively reviewed. Among them, 427 patients received combined modality therapy, whereas 130 patients received RT alone. Survivals were calculated by Kaplan-Meier method and compared with Log-rank test. Overall survival (OS) was compared with age and sex-matched general Chinese population using expected survival and standardized mortality ratio (SMR). Cox stepwise regression model was used for multivariate analysis.Results:The 5-year OS and progression-free survival (PFS) were 87.2% and 77.2%. The SMR was 3.59 ( P<0.001) at 1 year after treatment, whereas it was 1.50 at 4 years after treatment, without significant difference between ENKTCL group and country-matched general population ( P=0.146). Compared with RT alone, CMT did not result in significantly superior 5-year OS (87.0% vs 87.4%, P=0.961) or PFS (76.1% vs 80.7%, P=0.129). Local failure (11.5%, 64/557) and distant failure (10.8%, 60/557) were the main failure modes, while regional failure was rare (2.9%, 16/557). The 5-year locoregional control rate (LRC) was 87.2% for the whole group, with 89.5% for ≥50 Gy versus 73.7% for <50 Gy ( P<0.001). Radiotherapy dose was an independent factor affecting LRC( P<0.05). Conclusions:Radiotherapy achieves a favorable prognosis in patients with low-risk early-stage ENKTCL. The incidence of either locoregional or distant failure is low. Radiation dose still is an important prognostic factor for LRC.
9.Outcome of radiotherapy for low-risk early-stage patients with extranodal NK/T-cell lymphoma, nasal-type
Xiaodan WANG ; Xin LIU ; Tao WU ; Yong YANG ; Shunan QI ; Xia HE ; Liling ZHANG ; Gang WU ; Baolin QU ; Liting QIAN ; Xiaorong HOU ; Fuquan ZHANG ; Xueying QIAO ; Hua WANG ; Gaofeng LI ; Yuan ZHU ; Jianzhong CAO ; Junxin WU ; Suyu ZHU ; Mei SHI ; Hang SU ; Ximei ZHANG ; Huilai ZHANG ; Huiqiang HUANG ; Yujing ZHANG ; Yuqin SONG ; Jun ZHU ; Ying WANG ; Yexiong LI
Chinese Journal of Oncology 2021;43(10):1105-1113
Objective:To evaluate the prognosis and determine the failure patterns after radiotherapy for low-risk early-stage patients with extranodal NK/T-cell lymphoma, nasal-type (ENKTCL).Methods:A total of 557 patients from 2000—2015 with low-risk early-stage ENKTCL who received radiotherapy (RT) with or without chemotherapy (CT) from China Lymphoma Collaborative Group were retrospectively reviewed. Among them, 427 patients received combined modality therapy, whereas 130 patients received RT alone. Survivals were calculated by Kaplan-Meier method and compared with Log-rank test. Overall survival (OS) was compared with age and sex-matched general Chinese population using expected survival and standardized mortality ratio (SMR). Cox stepwise regression model was used for multivariate analysis.Results:The 5-year OS and progression-free survival (PFS) were 87.2% and 77.2%. The SMR was 3.59 ( P<0.001) at 1 year after treatment, whereas it was 1.50 at 4 years after treatment, without significant difference between ENKTCL group and country-matched general population ( P=0.146). Compared with RT alone, CMT did not result in significantly superior 5-year OS (87.0% vs 87.4%, P=0.961) or PFS (76.1% vs 80.7%, P=0.129). Local failure (11.5%, 64/557) and distant failure (10.8%, 60/557) were the main failure modes, while regional failure was rare (2.9%, 16/557). The 5-year locoregional control rate (LRC) was 87.2% for the whole group, with 89.5% for ≥50 Gy versus 73.7% for <50 Gy ( P<0.001). Radiotherapy dose was an independent factor affecting LRC( P<0.05). Conclusions:Radiotherapy achieves a favorable prognosis in patients with low-risk early-stage ENKTCL. The incidence of either locoregional or distant failure is low. Radiation dose still is an important prognostic factor for LRC.
10.Efficacy of minimally invasive pulmonary surfactant administration in preterm infants with neonatal respiratory distress syndrome: a multicenter clinical trial
Huiqiang LIU ; Xiaomei TONG ; Tongyan HAN ; Hui ZHANG ; Ming GUO ; Xuefeng ZHANG ; Xinjian LIU ; Xiang ZHANG ; Mingtao ZHANG ; Fang LIU ; Lisha BAO ; Jun ZHENG ; Xiuying TIAN ; Qi GAO ; Wanxian ZHANG ; Yang DUAN ; Fuqiang SUN ; Wei GUO ; Ling LI ; Min XIAO ; Weili LIU ; Rui JIANG
Chinese Journal of Pediatrics 2020;58(5):374-380
Objective:To explore the feasibility and safety of minimally invasive surfactant administration (MISA) in preterm neonates with respiratory distress syndrome (NRDS).Methods:In this multicenter prospective randomized controlled trial, 92 preterm infants with gestation age ≤30 weeks and diagnosed with NRDS were enrolled in 8 level Ⅲ neonatal intensive care units (NICU) in Beijing-Tianjin-Hebei Region from 1 st July 2017 to 31 st December 2018. They were randomly assigned to minimally invasive surfactant administration (MISA) group or endotracheal intubation surfactant administration (EISA) group according to random number generated by computer. Infants in both groups received calf pulmonary surfactant preparation at a dose of 70-100 mg/kg. The data of demography, perinatal situation, medication administration, complications, clinical outcomes in the two groups were compared with Chi-square test, Student′s t-test, Mann-Whitney U test or Fisher′s exact test. Results:Among the 92 preterm infants, 53 were males, 39 were females; 47 were in the MISA group (25 males), and 45 were in the EISA group (28 males). The gestational age and birth weight were (29.5±1.2) weeks and (1 271±242) g in all patients, (29.5±1.4) weeks and (1 285±256) g in the MISA group, and (29.6±0.9) weeks and (1 255±227) g in the EISA group. The duration of surfactant infusion and the length of whole procedure in the MISA group were significantly longer than that in the EISA group (60 (18, 270) s vs. 50 (30, 60) s, Z=3.009, P=0.003; 90 (60, 300) s vs. 60 (44, 270) s, Z=3.365, P=0.001). For the outcomes, the incidence of hemodynamically significant patent ductus arteriosus (hsPDA) and bronchopulmonary dysplasia (BPD) were lower in the MISA group than in the EISA group (36% (17/47) vs. 67% (30/45), χ 2=8.556, P=0.003; 26% (12/47) vs. 47% (21/45), χ 2=4.464, P=0.035). Conclusions:Minimally invasive surfactant administration is applicable in preterm infants ≤30 weeks gestational age with NRDS. Although the length of whole procedure is longer than route endotracheal administration, the benefit of decreasing the incidences of hsPDA and BPD outweighs this demerit.

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