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Objective To investigate the knowledge,attitude and practice (KAP) status quo of the primary caregivers on cardiopulmonary resuscitation (CPR) in the patients with high risk of sudden cardiac death (SCD).Methods The convenience sampling method was used to extract 139 primary caregivers of the inpatients with high risk of SCD in the cardiology department of our hospital from January to June 2015.The self-designed questionnaire was adopted to perform the KAP status quo investigation on CPR and the influence factors were analyzed.Results The scoring rate of knowledge,attitude and practice about CPR in the primary caregivers were 36.85%,64.26% and 29.24%,respectively;the cultural level,residence place,health status,training experience,first-aid experience and sick time of the patients were the influence factors of KAP on CPR (P<0.05).Conclusion The KAP status quo of CPR among primary caregivers are poor.It is necessary to strengthen CPR training in primary caregivers and improve their KAP level.
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Objective To report a pedigree with X?linked dominant protoporphyria(XLDPP), and to detect 5?aminolevulinic acid synthetase 2(ALAS2)gene mutations in this pedigree. Methods A clinical investigation was performed in a pedigree with XLDPP, and relevant data were collected from family members. A next?generation sequencing method was applied to screen possible mutation sites, and Sanger sequencing was performed to determine pathogenic gene mutations. Dermoscopy was conducted to observe skin lesions in the patients with XLDPP, and the Fotofinder system and very high frequency (VHF) ultrasound system were utilized to assess the severity of photodamage. Liver and gallbladder ultrasonography as well as blood examination were performed for all the family members. Results A deletion mutation, c.1706?1709ΔAGTG, was detected in the ALAS2 gene on the X chromosomes of all the patients in this family, which led to replacement or loss of 19-20 C?terminal residues through transcriptional frameshifting, and eventually caused an increase in ALAS2 activity. In the patients with XLDPP, skin photodamage was relatively severe;protoporphyrin?induced hepatobiliary damage was observed and aggravated with age;anemia and iron deficiency occurred sometimes. Conclusion The deletion mutation c.1706?1709ΔAGTG of the ALAS2 gene may be the underlying cause of XLDPP in this pedigree.
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Objective To determine the prevalence and clinical characteristics of orthostatic hypotension (OH) and orthostatic hypertension (OHT) in the elderly patients with hypertension.Methods 489 elderly patients with hypertension were enrolled and divided into the OH group,the OHT group and the non-OH-OHT group,which represents no or symptom.The orthostatic blood pressure was measured in supine position after resting for more than 5 minutes and at 3 min standing.Results The prevalence of OH in the 60～79 years old group was lower than that in ≥ 80 years old group.The morbility of coronary heart disease,diabetes and ischemic stroke was significantly higher in the OH and OHT group than that in the non-OH-OHT group.Conclusions OH and OHT are common disease in the elderly patients with hypertension and associated with increased risk of cardiovascular disease and diabetes mellitus.To strengthen nursing and health education for elderly patients with hypertension could prevent the incidence of malignant cardiovascular events due to OH and OHT.
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Objective:To investigate the dynamic changes of coagulation system following radiofrequency catheter ablation(RFCA) and effect of molecular weight heparin. Methods:Blood samples were collected at 6 different times to measure the thrombin-antithrombinⅢcomplex (TAT) and hepatocyte growth factor (HGF) in 60 RFCA candidates and 22 controls undergoing electrophysiological study (EPS).Patients were randomly divided into 2 groups.Low molecular weight heparin was given to 31 pationts (subgroup B) after RFCA,but not to the others (subgroup A). Results:①Plasma TAT exhibited a double peaked pattern in the subgroup A.The first peak occurred instantly after RFCA (42.8?15.7 ng/ml),and the second 3 days later (20.1?19.4 ng/ml).The second peak was significantly higher than that of the control group (2.7?1.5 ng/ml) and the subgroup B(4.3?5.2 ng/ml)(P
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Aim To determine the roles of peripheral ? 1 and ? 2 -adrenoceptors (? 1-AR,? 2-AR) in inhibition of carotid sinus barore ceptor reflex(CSR) induced by intracerebroventricular injection (icv) of histami ne (HA).Methods The left and right carotid sinus regions were i solated from the systemic circulation in 22 male Sprague-Dawley rats anesthetiz ed with pentobarbital sodium.The intracarotid sinus pressure (ISP) was altered in a stepwise ma nner in vivo.ISP-mean arterial pressure (MAP) relationship curve and its ch aracteristic parameters were constructed by fitting to the logistic function wit h five parameters.The changes in CSR performance induced by icv HA and the effec ts of pretreatment with ? 1-AR or ? 2-AR selective antagonist into the per ipheral vein on the responses of CSR to HA were examined.Results icv microinjection of HA (60 ?mol?L -1 in 5 ?l) significantly shifted the ISP-MAP relationship curve upwards (P0.05).Conclusion The intracerebroventricular administration of HA results in a rapid resetting of CSR and a decrease in reflex sensitivity, and the functions of both the peripheral ? 1-AR and ? 2-AR may attenuate CSR resetting induced by icv microinjection of HA. Furthermore,the peripheral ? 1-AR might play an important role in mediating the responses of CSR to central HA.