Ozaki technique versus ross operation for complex aortic valve diseases in children: A retrospective cohort study.

Background: The Ozaki technique demonstrated promising results in adults, but few studies reported on pediatric patients with limited follow-up time. This study aimed to evaluate the mid-term results of Ozaki technique compared with Ross operation for complex aortic valve (AV) diseases in children.

Materials And Methods: One hundred and seventeen children underwent either Ozaki (n = 64) or Ross (n = 53) operation from January 2017 to December 2023.

Biventricular function after Ebstein anomaly repair from a single-center echocardiography study.

Objective: We aimed to examine biventricular remodeling and function after Ebstein anomaly (EbA) surgical correction using echocardiographic techniques, particularly, the relations between the biventricular changes and the EbA types.

Methods: From April 2015 to August 2022, 110 patients with EbA were included in this retrospective study based on the Carpentier classification. Echocardiography assessments during the preoperative, early, and mid-term postoperative periods were performed.

Success rate of current human-derived gastric cancer organoids establishment and influencing factors: A systematic review and meta-analysis.

Background: Human-derived gastric cancer organoids (GCOs) are widely used in gastric cancer research; however, the culture success rate is generally low.

Aim: To explore the potential influencing factors, and the literature on successful culture rates of GCOs was reviewed using meta-analysis.

Methods: PubMed, Web of Science, and EMBASE were searched for studies.

Bibliometrics analysis based on the Web of Science: Current trends and perspective of gastric organoid during 2010-2023.

Background: Three-dimensional organoid culture systems have been established as a robust tool for elucidating mechanisms and performing drug efficacy testing. The use of gastric organoid models holds significant promise for advancing personalized medicine research. However, a comprehensive bibliometric review of this bur-geoning field has not yet been published.

Multicenter Comparison of Percutaneous and Surgical Pulmonary Valve Replacement in Large RVOT.

Background: A percutaneous approach for pulmonary valve replacement (PVR) is a feasible alternative to surgical PVR in selected patients with severe pulmonary regurgitation after repair of tetralogy of Fallot. However, large right ventricular outflow tract (diameter ≥ 25 mm) remains challenging.

Methods: This retrospective multicenter study enrolled consecutive patients with large right ventricular outflow tract who underwent percutaneous PVR (Venus P-valve, Venus MedTech Inc, Hangzhou, China) (n = 35) or surgical PVR (homograft valve; n = 30) between May 2014 and April 2017.

[DSAT Model on Identifying the Weak Difference Information of Corn Leaf Spectra Stressed by Heavy Metal Lead Ion].

Weak information measurement between the spectra is one of the toughest current research issues in the hyperspectral remote sensing domainTraditional measuring methods are difficult to distinguish the weak information differences. The experiment on the lead(Pb) pollution was designed based on its different concentrations, meanwhile, the hyperspectral reflectance, chlorophyll and lead ion(Pb2+) contents of corn leaves stressed by different Pb2+ concentrations were measured. However, it is difficult to distinguish the differences on weak information between the spectra and the pollution levels of corn leaves stressed by different Pb2+ concentrations because the spectral correlation coefficients have reached 0.

[A New HAC Unsupervised Classifier Based on Spectral Harmonic Analysis].

Hyperspectral images classification is one of the important methods to identify image information, which has great significance for feature identification, dynamic monitoring and thematic information extraction, etc. Unsupervised classification without prior knowledge is widely used in hyperspectral image classification. This article proposes a new hyperspectral images unsupervised classification algorithm based on harmonic analysis(HA), which is called the harmonic analysis classifer (HAC).

[An algorithm of spectral minimum shannon entropy on extracting endmember of hyperspectral image].

It's significant to study the algorithm of endmember extraction, which is the key for pixel unmixing,in the fields of feature identification, abundance inversion, quantitative remote sensing and so on. Based on the theory of shannon entropy and Gaussian distribution function, a new algorithm, named spectral minimum shannon entropy (SMSE) method for extracting end-members of hyperspectral images, is proposed in the present paper after analyzing the characteristics of spectra of the hyperspectral images. This algorithm was applied to extract the endmembers of an AVRIRS hyperspectral image, it was found that these extracted endmember spectra have higher precision by matching with the spectral library of United States Geological Survey (USGS).

Postoperative diaphragmatic paralysis after cardiac surgery in children: incidence, diagnosis and surgical management.

Background: Cardiac surgery for congenital heart disease covers a wide spectrum from simple to complex cardiac and extracardiac malformations. Innovations in pediatric cardiac surgery and perioperative care over the past decades have allowed surgical correction or at least palliation in almost all complex congenital heart defects in the first years of life. Diaphragmatic paralysis (DP) due to phrenic nerve injury after congenital cardiac surgery is an important respiratory complication resulting with respiratory insufficiency, lung infections, prolonged hospital stay time and even death.

Modified anastomosis for repair of supracardiac total anomalous pulmonary venous connection in infants.

Recurrent pulmonary venous obstruction after repair of total anomalous pulmonary venous connection (TAPVC) is usually restricted to the anastomosis between the pulmonary venous confluence and the left atrium. We describe a modified technique for repair of supracardiac TAPVC in infants. An L-shaped incision of left atrium is utilized and the right-sided anastomosis is enlarged by using autologous pericardium to create a large and tension-free anastomosis.

[Surgical treatment of aortico-left ventricular tunnel].

Objective: To review 9 aortico-left ventricular tunnel (ALVT) patients in our hospital, describe the clinical features, diagnosis, treatments and follow-up.

Methods: We identified 9 patients from July 2002 to August 2008. Clinical and surgical details were reviewed.

[Mid-term results of surgical treatment for aortic regurgitation with large left ventricle].

Objective: To evaluate the recent and mid-term results of aortic valve replacement for aortic valve insufficiency with large left ventricle.

Methods: From Dec 1999 to Jan 2006, 31 patients with aorta insufficiency with the left ventricle larger than 80 mm, 30 males and 1 female, aged (36 -/+ 11), underwent aortic valve replacement and were followed up after discharge by mail and/or telephone call for (46 +/- 23) months (3-85 months), and followed up by ultrasonography for (25 +/- 24) months (3-70 months). The ultrasound cardiographic data were analyzed.

[Early and middle outcomes of total arterial revascularization using exclusively internal mammary artery and radial artery].

Objective: To evaluate the early and mid-results of the use of the radial artery alongside the internal mammary artery for complete arterial revascularization in coronary bypass surgery.

Methods: From January 1999 to January 2005, 123 patients with coronary artery disease with lesions in more than one branch (target vessel), 114 males and 9 females, aged 51.9 +/- 9.

Transplantation of mesenchymal stem cells from human bone marrow improves damaged heart function in rats.

Background: Bone marrow-derived mesenchymal stem cells (MSCs) are of great therapeutic potential after myocardial ischemic injury. However, little is known about the biological characteristics of MSCs in patients with coronary artery disease and their effects on infracted myocardium. The present study evaluated the biological characteristics of MSCs from patients with coronary artery disease and their effects after being transplanted into infarcted myocardium using a rat model.

Clinical application of bidirectional Glenn shunt with off-pump technique.

A study was conducted to evaluate the outcomes of the bidirectional Glenn shunt technique performed off-pump. Between April 1999 and April 2001, 36 patients underwent bidirectional Glenn shunt, unilateral in 28 patients and bilateral in 8 patients, without using cardiopulmonary bypass. The patients consisted of 25 males and 11 females with a mean age of 5.

[Radionuclide pulmonary perfusion imaging in evaluating pulmonary hypertension in patients with rheumatic heart disease].

Objective: To evaluate the degree of pulmonary hypertension in patients with rheumatic heart disease using radionuclide pulmonary perfusion imaging.

Methods: The pulmonary perfusion in 25 patients with rheumatic heart disease was examined using scintigram with macroaggregates of (99m)Tc-labeled human serum albumin (PPS) before and 7 days after operation. PPS was analyzed for (1) pulmonary perfusion steady time (PT), right upper and lower lung count ratio (RULR).