To compare the effects of intravascular ultrasound (IUVS) and optical coherence tomography (OCT) guided emergency percutaneous coronary intervention (PCI) on acute myocardial infarction.

A total of 80 patients with acute myocardial infarction admitted to our hospital from May 2023 to November 2024 were divided into IUVS group and OCT group, with 40 cases in each group; there were 47 males and 33 females, the age ranged from 51 to 73 years, with an average of (63.51±6.59) years. Emergency PCI under IVUS guidance was performed in the IVUS group, while emergency PCI under OCT guidance was performed in the OCT group. The preoperative characteristics of lesions (plaque rupture, plaque erosion, lipid and fibrous plaques, and calcified nodules), preoperative coronary conditions [minimum lumen area (MLA), reference vessel diameter, minimum lumen diameter, lesion length, and bifurcation lesion], perioperative situation (number of stent placement, intraoperative dilation times, minimum stent area after stent placement, stent placement success rate, and length of hospital stay), detection rate of immediate stent implantation defects after PCI (stent mal-expansion, poor adhesion, immediate thrombosis, marginal dissection, and tissue prolapse), the incidence of major adverse cardiovascular events (MACE) 30 days after surgery (angina pectoris, recurrent myocardial infarction, and malignant arrhythmias) were compared between the two groups.

The plaque rupture and plaque erosion in OCT group were higher than that in the IVUS group (P<0.05); the MLA, reference vessel diameter, minimum lumen diameter, lesion length and bifurcation lesion were compared between the two groups, with statistically significant (P>0.05); the intraoperative dilation times in OCT group were more than that in IVUS group, and the hospital stay was shorter than that in IVUS group (P<0.05); the total detection rate of stent implantation defects immediately after PCI in OCT group was higher than that in IVUS group (P<0.05); there was no statistical significance in the total incidence of 30dMACE between the two groups (P>0.05).

Compared with IVUS, OCT-guided emergency PCI is better in the treatment of patients with acute myocardial infarction, which can effectively identify the nature of preoperative lesions and improve the detection rate of poor stents, shorten hospital stay, and is worthy of clinical promotion.

To investigate the effect of integrated emergency nursing process on the rescue effect of patients with acute myocardial infarction (AMI).

Ninety AMI patients admitted to Xi'an International Medical Center Hospital from August 2023 to October 2024 were selected as the research subjects, including 48 males and 42 females; The age ranged from 41 to 70 years, with an average of (60.28±7.63) years. According to the random number method, they were divided into an observation group and a control group, with 45 cases in each group. The control group received routine emergency care procedures, while the observation group received integrated medical and nursing emergency care procedures. The time nodes related to emergency treatment, including onset to balloon dilation, first medical contact to balloon dilation, hospital gate to balloon dilation, and onset to hospital gate, pre- and post-emergency cardiac function indicators, including left ventricular ejection fraction (LVEF) and left ventricular end diastolic diameter (LVEDD), major adverse cardiovascular events (MACE) during hospitalization, and nursing satisfaction were compared between two groups of patients.

The time of onset-to-ballooning, first medical contact-to-ballooning, hospital gate-to-ballooning and onset-to-hospital gate in the observation group was shorter than that in the control group (P<0.05). Compared with the same group before first-aid, LVEF was significantly increased and LVEDD was significantly decreased in both groups after first-aid (P<0.05). After first-aid, LVEF in the observation group was significantly higher than that in the control group, and LVEDD was significantly lower in the control group (P<0.05). The incidence of major adverse cardiovascular events (MACE) during hospitalization in the observation group was lower than in the control group, and the nursing satisfaction was higher than the control group (P<0.05).

Integrated emergency nursing is helpful to improve the prognosis of AMI patients, shorten the emergency process, promote the recovery of cardiac function, reduce the incidence of MACE, and improve nursing satisfaction.

To analyze the relationship between blood lactate (Lac), early lactate clearance (LCR), B-type natriuretic peptide (BNP), D-dimer (D-D) and prognosis in elderly patients with chronic obstructive pulmonary disease (COPD) complicated with respiratory failure.

The clinical data of 80 elderly patients with COPD complicated with respiratory failure admitted to the Department of Respiratory and Critical Care Medicine in Shuyang Hospital from April 2022 to February 2025 were retrospectively analyzed, and they were divided into the death group with 11 cases and the survival group with 69 cases according to the follow-up outcomes within 28 days after admission. 76 patients with COPD but without respiratory failure were set as the control group. The levels of Lac, LCR, BNP and D-D in the elderly COPD complicated with respiratory failure group and the control group, as well as different disease degrees and prognoses of elderly COPD complicated with respiratory failure were compared, the correlations between Lac, LCR, BNP, D-D levels and arterial partial pressure of oxygen (PaO₂) and arterial partial pressure of carbon dioxide (PaCO₂) in elderly patients with COPD and respiratory failure were analyzed, and the receiver operating characteristic (ROC) curve was used to analyze the prognostic value of indicators in elderly patients with COPD combined with respiratory failure.

The levels of Lac, BNP and D-D in COPD group with respiratory failure were higher than those in control group, but LCR was lower than those in control group (P<0.05).The levels of Lac, BNP and D-D levels in severe respiratory failure group were higher than those in mild-moderate respiratory failure group, and LCR was lower than those in mild-moderate respiratory failure group (P<0.05). The levels of Lac, BNP and D-D in COPD patients with respiratory failure were higher than those in survival group, and the LCR was lower than those in survival group (P<0.05). The levels of Lac, BNP and D-D were positively correlated with PaCO₂ in elderly patients with COPD combined with respiratory failure (P<0.05), the levels of Lac, BNP and D-D were negatively correlated with PaO₂ (P<0.05), the levels of LCR were negatively correlated with PaCO₂ in elderly patients with COPD combined with respiratory failure (P<0.05), and the levels of Lac, BNP and D-D were positively correlated with PaO₂ (P<0.05). ROC curve analysis showed that the AUC of the combined detection was greater than that of Lac, LCR, BNP, and D-D individually.

Lac, LCR, BNP and D-D levels in elderly patients with COPD complicated with respiratory failure have certain correlation with the severity of the disease and prognosis, and can be used for prognosis assessment.

To compare the effects of different emergency nursing methods in endoscopic treatment of patients with acute upper gastrointestinal bleeding.

A total of100 patients with acute upper gastrointestinal bleeding admitted to the Fifth Hospital of Huangshi City from January 2022 to December 2024 were selected; there were 55 males and 45 females, the age ranged from 27 to 65 years old, with an average of (46.03±10.23) years. They were randomly divided into an observation group and a control group, with 50 patients in each group, using a random number table. The control group received routine perioperative care, while the observation group received perioperative dual track emergency care, both of which continued until the patient was discharged. The hemostatic outcomes (immediate hemostasis success, rebleeding within 72 hours, and conversion to surgical intervention) were compared between the two groups, and the changes in self-rating depression scale (SDS), self-rating anxiety scale (SAS), hemoglobin (Hb), albumin (ALB), and prealbumin (PA) before endoscopic treatment and discharge, as well as the length of hospital stay, hospitalization costs, and nursing satisfaction were compared.

The observation group had a rebleeding rate within 72 hours of 2.00%, which was lower than the control group's 14.00% (P<0.05). At discharge, the SDS and SAS scores of the observation group were (36.04±3.51) points and (37.46±4.02) points, both of which were lower than those of the control group (40.27±3.92) points and (41.85±4.15) points (P<0.05). At discharge, the Hb, ALB, and PA levels in the observation group were (128.32±15.23) g/L, (40.11±3.52) g/L, and (225.69±15.32) mg/L, all higher than those in the control group (121.57±11.05) g/L, (36.87±3.20) g/L, and (213.25±13.07) mg/L (P<0.05). The hospitalization time and hospitalization expenses of the observation group were (6.35±1.83) days and (0.86±0.09) yuan, both of which were shorter/less than those of the control group (7.60±1.24) days and (0.92±0.13) yuan (P<0.05). The overall satisfactory rate of the observation group with nursing care was 94.00%, which was higher than the control group's 78.00% (P<0.05).

Perioperative dual track emergency nursing can help reduce the rebleeding rate of patients with acute upper gastrointestinal bleeding undergoing endoscopic treatment, alleviate negative emotions, and improve nutritional status. It is worthy of clinical promotion.

To analyze the infection status and preventive measures of multidrug resistant organism (MDRO) in patients with oral and maxillofacial trauma.

A retrospective analysis was conducted on the medical records of 71 hospitalized MDRO patients with oral and maxillofacial trauma received by Huangshi Hospital of Traditional Chinese Medicine from January 2023 to February 2025, including 41 males and 30 females, the age ranged from 22 to 71 years, with an average of (53.01±7.95) years. During the same period, 78 patients with oral and maxillofacial trauma admitted to our hospital who were hospitalized but did not have MDRO infection were selected as the control group, including 37 males and 41 females, the age ranged from 20 to 73 years, with an average of (55.30±8.42) years. The distribution and drug resistance of pathogenic bacteria in MDRO infected patients were detected, and the distribution of infection sites was analyzed., and the risk factors of MDRO infection in patients with oral and maxillofacial trauma were analyzed by univariate and multivariate logistic regression analysis.

A total of 78 strains of MDRO were detected in 71 patients with oral and maxillofacial trauma, mainly Escherichia coli, MRSA and Klebsiella pneumoniae. The resistance of Escherichia coli and Klebsiella pneumoniae to cephalosporins, quinolones and sulfonamides was high, and the resistance of methiclococcus aureus to penicillins, macrolides and lincoamides was high. Univariate analysis showed that the rates of open injury, use of antibiotics ≥3 kinds, use of antibiotics ≥7 days, stay ≥10 days in MDRO patients hospitalized with oral and maxillofacial trauma were higher than those in the control group (P<0.05). Multivariate logistic regression analysis showed that open injury, use of antibiotics ≥3 kinds, use of antibiotics ≥7 d, and hospital stay ≥10 d were the risk factors for oral and maxillofacial trauma inpatient MDRO infection (P<0.05).

The MDRO in patients with oral and maxillofacial trauma is mainly composed of gram-negative bacteria, which is mostly associated with wound and lower respiratory tract infection, and is related to multiple risk factors. Clinical preventive countermeasures should be strengthened.

To explore the application effect of competency-based video training on airway clearance techniques in the training of RICU nurses and to analyze its impact on RICU nurses' skill compliance rate and patients' sputum retention rate.

Data from 23 RICU nurses and 124 patients admitted to the RICU were collected between August 2021 and September 2024. Starting in March 2023, our hospital's RICU implemented competency-based video training on airway clearance techniques. A total of 62 patients admitted between August 2021 and February 2023 were assigned as the control group, including 37 males and 25 females, with an age range of 34-67 years (mean age: 50.23±15.54 years). Patients admitted between March 2023 and September 2024 were assigned to the observation group, including 36 males and 26 females, with an age range of 33-67 years (mean age: 49.86±15.14 years). The nurses' operational skill compliance rates and procedural standardization scores were compared before and after the video training, as well as the mechanical ventilation duration, hospitalization duration, sputum retention rate, complication incidence rate, and satisfaction with nursing care among patients between the two groups.

After implementing competency-based video training on airway clearance techniques, RICU nurses demonstrated higher operational skill compliance rates and improved scores in complication prevention measures and emergency response capabilities compared to pre-training levels. Patients in the observation group exhibited significantly shorter mechanical ventilation duration and hospitalization duration compared to the control group, along with lower sputum retention rates and total complication incidence rates, as well as higher satisfaction with nursing care (P<0.05).

Competency-based video training on airway clearance techniques significantly improves the operational skill compliance rate of RICU nurses, shortens mechanical ventilation duration and hospitalization duration in patients, reduces sputum retention rate and complication incidence rate, and achieves higher patient satisfaction with nursing care, demonstrating favorable clinical applicability.

To explore the application of comprehensive nursing based on the "3P model" in the interventional treatment of patients with acute aortic dissection.

A retrospective analysis of 81 patients with acute aortic dissection treated in our hospital from January 2023 to December 2024 were retrospectively conducted, including 48 males and 33 females; The age ranged from 20 to 62 years, with an average of (56.91±12.57) years. According to the nursing methods, they were divided into observation group (n=41) and control group (n=40). The control group was given routine nursing, while the observation group was given comprehensive nursing based on "3P mode" on the basis of the control group. The rehabilitation process, visual analogue scale (VAS) score, oxygenation index, forced vital capacity (FVC), forced expiratory volume in one second (FEV1) level and the incidence of adverse reactions were compared between the two groups.

There was no significant difference in the time of getting out of bed and hospitalization between the two groups after surgery (P>0.05). After 7 days and 14 days of nursing, the VAS scores of both groups decreased, which in the observation group was lower than that in the control group (P<0.05). After 7 days and 14 days of nursing, the levels of oxygenation index, FVC, and FEV1 increased in both groups, which in the observation group were higher than those in the control group (P<0.05). The total incidence of adverse reactions in the observation group was lower than that in the control group (P<0.05).

The comprehensive nursing based on the "3P model" can promote patient recovery, improve cognitive function and quality of life in the interventional treatment of acute aortic dissection.

To investigate the diagnostic value of scrotal ultrasonography, testicular ischemia and suspicious torsion score (TWIST) system and peripheral blood platelet volume (MPV) in testicular torsion in children.

A retrospective analysis was performed on the case data of 150 children admitted to hospital due to pain and swelling of the scrotum from August 2020 to December 2024, according to the results of testicular exploration, 92 cases were in the testicular torsion group and 58 cases in the non-testicular torsion group. The diagnostic results of scrotal color Doppler ultrasound examination and testicular exploration were compared, the color ultrasound examination of scrotum, score of TWIST system at admission and peripheral blood MPV levels at the morning after admission were compared between the two groups. The multivariate logistic regression analysis was used to analyze the risk factors of testicular torsion in children, and the receiver operating curve (ROC) to analyze the diagnostic value of scrotal ultrasonography, TWIST score and MPV alone and in combination.

The kappa consistency test between scrotal color Doppler ultrasound examination and testicular exploration was statistically significant (P<0.05). The testis volume, testicular bleeding grading (Arda grade) and TWIST system score were statistically significant differences between the two groups (P<0.05); the peripheral blood MPV levels in testicular torsion group was higher than that in the non-testicular torsion group (P<0.05). The multivariate logistic regression analysis showed that testicular volume, Arda grade, TWIST score and MPV were all risk factors for children with testicular torsion (P<0.05). ROC analysis showed that combined detection of testicular volume, Arda grade, TWIST score and MPV had higher diagnostic value for children with testicular torsion than single detection (P<0.05).

Scrotal color Doppler ultrasound has certain value in the diagnosis of testicular torsion. Combined with TWIST system score and MPV detection, it can further improve the diagnostic effect of testicular torsion in children.

To explore the application effect of the teaching mode of combining DeepSeek and traditional method in the emergency and disaster teaching in medical colleges.

Two classes of third-year undergraduate students majoring in clinical medicine in Yan'an University were randomly selected and divided into a traditional teaching group (n=53) and a DeepSeek teaching group (n=30) according to different teaching plans. Students in the traditional teaching group received conventional teaching methods, while those in the DeepSeek group were taught using curriculum plans generated by DeepSeek that aligned with the teaching syllabus and met students' actual needs, with question banks developed specifically for core knowledge points. At the end of the semester, the two groups were compared in terms of theoretical scores, practical skills results, and teacher-student satisfaction evaluations.

Both groups of students underwent assessments, scoring, and a teaching satisfaction questionnaire at the end of the semester. Students in the DeepSeek group achieved higher theoretical scores than those in the traditional teaching group in pre-hospital emergency care (82.00 vs 74.00, Z=-7.02), emergency symptoms (90.00 vs 87.00, Z=-5.68), life support (89.00 vs 83.00, Z=-7.03), acute and critical diseases of the respiratory system (83.00 vs 78.00, Z=-6.23), and acute and critical diseases of the cardiovascular system (85.00 vs 75.00, Z=-7.70), with statistically significant differences (P<0.05). In terms of practical skills, the DeepSeek group also received significantly higher ratings than the traditional teaching group in tracheal intubation (4.53±0.63 vs 3.85±0.66, t=4.59) and thoracic puncture (4.46±0.72 vs 3.75±0.70, t=4.39), with statistically significant differences (P<0.05). Additionally, both teachers and students expressed higher satisfaction with the DeepSeek teaching model, and the difference was statistically significant (P<0.05).

In the emergency teaching for undergraduate clinical majors, the implementation of the DeepSeek teaching model can improve teaching quality, enhance students' initiative, and increase the satisfaction of both teachers and students, making it worthy of promotion and application.

To conduct a bibliometric and visual analysis of domestic and international research literature on helicopter medical rescue since 2004, to summarize the current status, hot issues, and future development directions of helicopter medical rescue research, and to provide a literature basis and new strategies for the development of helicopter medical rescue research in China.

The literature with themes related to helicopter medical rescue was retrieved from January 1, 2004, to July 31, 2024, with the type being journal articles. Chinese literature data were sourced from Wanfang, VIP, and CNKI databases, while English literature data were sourced from the Science Citation Index Expanded (SCIE) and PubMed databases within the Web of Science (Core Collection). Citespace 6.1.6R visualization software was used for the analysis.

This study obtained 834 valid Chinese literature and 730 valid English literature. In the field of helicopter medical rescue, the Chinese literature had the highest publication volume in 2021, but shown a rapid growth trend from 2007 to 2021, with small peaks in publication volume in 2008, 2014, and 2019. The publication volume of English literature in this field fluctuated upwards from 2008 to 2015 and rapidly increased from 2017 to 2021. Over the past 20 years, a total of 322 domestic journals and 209 foreign journals had published literature on helicopter medical rescue, with 113 core authors from China and abroad participating in the research. Domestic research hotspots had shifted from initial topics such as astronauts, emergency aid, natural disasters, earthquake relief, and rescue systems to maritime search and rescue, medical rescue, and aviation transportation, which continued to the present. Foreign research hotspots had transitioned from the emergency medical treatment of trauma patients to retrospective studies of emergency medical services.

The development of helicopter medical rescue research is closely related to the occurrence and severity of disasters worldwide, which can be reflected by the changes in the publication volume of literature databases in China and abroad; the changes in research hotspots in this field are related to the technological progress and actual needs of the same period; the focus of China's helicopter medical rescue research is relatively dispersed, lacking research on a specific technology or a specific issue of helicopter medical rescue; bibliometric and visual analysis can scientifically reflect the current status and changes in hot issues of helicopter medical rescue research, and has intuitiveness and scientific nature, which is an effective method to promote the development of helicopter medical rescue research.