Current therapeutic condition of chronic obstructive pulmonary disease associated pulmonary arterial hypertension／ / 心血管康复医学杂志

Chronic obstructive pulmonary disease (COPD)‐associated pulmonary arterial hypertension (PAH) is one of the most frequent types of PAH .In recent years , with the aging aggravates in China , total number of patients with COPD‐associated PAH gradually rise .It has become a focus of attention to fully understand current therapeutic condition of COPD‐associated PAH and select reasonable therapeutic program .

Current condition of diagnosis and treatment of connective tissue disease-related pulmonary artery hy-pertension / 心血管康复医学杂志

Connective tissue disease (CID)-related pulmonary arterial hypertension (PAH) is one of frequent PAH , whose pathogenesis is complicated and prognosis is poor .In recent years ,with deepening understanding of CID-re-lated PAH and development of targeted drugs ,diagnosis and treatment of CID-related PAH achieve new progress , and early diagnosis and treatment can significantly control disease condition and improve prognosis .

Evaluation of clinical effect of porcelain fused for metal crown restoration after root canal therapy / 医疗卫生装备

Objective To investigate the clinical effect of porcelain fused for metal crown restoration after root canal therapy.Methods Totally 90 patients with pulpitis or periapical periodontitis from December 2013 to December 2015 had their clinical data analyzed,who underwent root canal therapy and were divided equally into an observation group and a control group.The observation group took porcelain endocrowns repair and the control group applied ceramic crown.The two groups were compared on the restoration integrity,edge sealing,residual rate,gum,food impaction and color 3 months,6 months and 1 a after treatment.Results The observation group behaved significantly better than the control group in the edge sealing and restoration integrity (P＜0.05).There were significant differences between the residual rates,gum and food impaction in the two groups (P＜0.05).Conclusion Porcelain endocrowns repair gains advantages over ceramic crown repair in edge sealing,integrity,gum,food impaction and color after root canal therapy,though its long-term effect needs further investigation.

Evaluation of clinical effect of porcelain fused for metal crown restoration after root canal therapy / 医疗卫生装备

Objective To investigate the clinical effect of porcelain fused for metal crown restoration after root canal therapy.Methods Totally 90 patients with pulpitis or periapical periodontitis from December 2013 to December 2015 had their clinical data analyzed,who underwent root canal therapy and were divided equally into an observation group and a control group.The observation group took porcelain endocrowns repair and the control group applied ceramic crown.The two groups were compared on the restoration integrity,edge sealing,residual rate,gum,food impaction and color 3 months,6 months and 1 a after treatment.Results The observation group behaved significantly better than the control group in the edge sealing and restoration integrity (P＜0.05).There were significant differences between the residual rates,gum and food impaction in the two groups (P＜0.05).Conclusion Porcelain endocrowns repair gains advantages over ceramic crown repair in edge sealing,integrity,gum,food impaction and color after root canal therapy,though its long-term effect needs further investigation.

The efficacy and safety of bosentan therapy for Chinese patients with idiopathic pulmonary arterial hypertension: an open-label, prospective multicenter study / 中华心血管病杂志

<p><b>OBJECTIVE</b>To investigate the efficacy, safety and tolerance of bosentan, a dual endothelin receptor antagonist, in Chinese patients with idiopathic pulmonary arterial hypertension (IPAH).</p><p><b>METHODS</b>Totally 79 IPAH patients (hemodynamic criteria confirmed by right heart catheterization) were included in this open-label, prospective multicenter study. Patients received 62.5 mg of bosentan twice daily for the first 4 weeks, and then up-titrated to 125 mg twice daily for another 12 weeks. The primary end point was the change in exercise capacity showed by six-minute walk distance (6MWD) from baseline to 16 weeks. Secondary end points included the change in World Health Organization (WHO) functional class, Borg dyspnoea scale and systolic pulmonary artery pressure measured by echocardiography.</p><p><b>RESULTS</b>The 6MWD increased from (343.7 ± 93.7) meters at baseline to (397.5 ± 104.4) meters after 16 weeks (P < 0.01), WHO functional class and Borg dyspnoea scale were also significantly improved after 16 weeks therapy compared to baseline levels (all P < 0.01). Furthermore, the systolic pulmonary artery pressure was significantly decreased from (97.8 ± 25.2) mm Hg (1 mm Hg = 0.133 kPa) to (92.8 ± 29.5) mm Hg (P < 0.05) after 16 weeks bosentan treatment. There was no patient withdrawal from this study for safety consideration.</p><p><b>CONCLUSION</b>Bosentan therapy is well tolerated and can improve the exercise capacity and WHO functional class in Chinese IPAH patients.</p>