Cosinor-rhythmometry for 24-h urinary sodium, potassium, creatinine excretion in the Chinese adult population.

Background: The low accuracy of equations predicting 24-h urinary sodium excretion using a single spot urine sample contributed to the misclassification of individual sodium intake levels. The application of single spot urine sample is limited by a lack of representativity of urinary sodium excretion, possibly due to the circadian rhythm in urinary excretion. This study aimed to explore the circadian rhythm, characteristics, and parameters in a healthy young adult Chinese population as a theoretical foundation for developing new approaches.

The Content of Statistical Requirements for Authors in Biomedical Research Journals.

Background: Robust statistical designing, sound statistical analysis, and standardized presentation are important to enhance the quality and transparency of biomedical research. This systematic review was conducted to summarize the statistical reporting requirements introduced by biomedical research journals with an impact factor of 10 or above so that researchers are able to give statistical issues' serious considerations not only at the stage of data analysis but also at the stage of methodological design.

Methods: Detailed statistical instructions for authors were downloaded from the homepage of each of the included journals or obtained from the editors directly via email.

Torsade de pointes in a patient with complete atrioventricular block and pacemaker failure, misdiagnosed with epilepsy.

A case of torsade de pointes (TdP) with complete atrioventricular block and pacemaker failure that was misdiagnosed as epilepsy is presented herein. An 82-year-old female with recurrent seizure-like attacks showed epileptiform discharge during an electroencephalogram recording. A long QT interval and severe hypokalemia induced runs of TdP, which was related to pacemaker lead fracture, was detected during Holter recording and accompanied with episodes of seizures.

Electroversion in treatment of arrhythmia in a patient with Wolff-Parkinson-White syndrome and cervical spinal cord injury.

We report electroversion in treatment of atrial fibrillation (AF) and atrioventricular nodal reentry tachycardia (AVNRT) in a patient with Wolff-Parkinson-White syndrome and cervical spinal cord injury. At first, the patient sustained respiratory failure and weak cough reflex, thereafter repeated bronchoscopy was used to aspirate the sputum as well as control the pneumonia, which resulted in arrhythmia (AF and AVNRT). Two doses of intravenous amiodarone failed to correct the arrhythmia.

Successful resection of a giant subpericardial lipoma with recurrent ventricular arrhythmias.

We report a case of a giant subpericardial lipoma with ventricular arrhythmias. It was resected through a median sternotomy without cardiopulmonary bypass. The tumour was about 21x23x5 cm and weighed 2100 g.

[Association of angiotensinogen gene M235T variant with hypertrophic cardiomyopathy].

Objective: To evaluate the influence of the angiotensinogen(AGT) gene M235T variant on the prevalence and severity of hypertrophic cardiomyopathy(HCM).

Methods: The authors conducted a case-control study on 152 subjects, including 72 HCM patients and 80 normal controls. Polymerase chain reaction(PCR) combined with restriction fragment length polymorphism(RFLP) was used to detect the M235T variant of AGT gene.

[Association of angiotensinogen gene M235T variant with essential hypertension].

Objective: To investigate the association of the AGT gene M235T variant with essential hypertension in Han population of Zhejiang Province.

Methods: The study included 230 subjects: 116 hypertensive patients and 114 normotensive controls. Polymerase chain reaction (PCR) combined with restrictive fragment length polymorphism (RFLP) was used to detect the M235T variant of angiotensinogen (AGT) gene.