AIM: To compare the atrio-ventricular(AV/PV) delay optimization by echocardiography and intra-cardiac electrocardiogram(IEGM) based Quick Opt algorithm in complete heart block(CHB) patients, implanted with a dual cham...AIM: To compare the atrio-ventricular(AV/PV) delay optimization by echocardiography and intra-cardiac electrocardiogram(IEGM) based Quick Opt algorithm in complete heart block(CHB) patients, implanted with a dual chamber pacemaker. METHODS: We prospectively enrolled 20 patients(age 59.45 ± 18.1 years; male: 65%) with CHB, who were implanted with a dual chamber pacemaker. The left ventricular outflow tract velocity time-integral was measured after AV/PV delay optimization by both echocardiography and Quick Opt algorithm method. Bland-Altman analysis was used for agreement between the two techniques. RESULTS: The optimal AV and PV delay determined by echocardiography was 155.5 ± 14.68 ms and 122.5 ± 17.73 ms(P < 0.0001), respectively and by Quick Opt method was 167.5 ± 16.73 and 117.5 ms ± 9.10 ms(P < 0.0001), respectively. A good agreement was observed between optimal AV and PV delay as measured by two methods. However, the correlation of the optimal AV(r = 0.0689, P = 0.77) and PV(r = 0.2689, P = 0.25) intervals measured by the two techniques was poor. The time required for AV/PV optimization was 45.26 ± 1.73 min by echocardiography and 0.44 ± 0.08 min by Quick Opt method(P < 0.0001).CONCLUSION: The programmer based IEGM method is an automated, quick, easier and reliable alternative to echocardiography for the optimization of AV/PV delay in CHB patients, implanted with a dual chamber pacemaker.展开更多
The coronary arteries diseases are one of the most causes of mortality and morbidity worldwide, particularly in the developing countries. Coronary obstructions are generally described by location and severity of steno...The coronary arteries diseases are one of the most causes of mortality and morbidity worldwide, particularly in the developing countries. Coronary obstructions are generally described by location and severity of stenosis. Manual tracing and measurement of the stenosis vessel in comparison to reference location of stenosis can be helpful to classify whether a lesion is significant or not. The aim of this study is to identify the dominant type of circulation carried out in patients presented in heart institute and associated with degree of stenosis in RCA and LAD artery. Materials and Methods: This was a retrospective study carried out on patients reporting to Heart Institute from June 2013 to August 2013 (311 patients records as a total coverage were collected as sample) whose coronary artery angiography revealed pathology in coronary arteries. Result: The findings were 71.7% right dominant, 23.5% left dominant and 4.8% co-dominant;LAD tends to be stricture with right dominant circulation type. LAD artery tends to be stenosis at proximal and mid segment while in the RCA tends to be stenosis in mid and distal segments. The right dominant artery is popular type of circulation in Sudanese people reported in Sudan Heart Institute;there is no significance association between gender and arterial type of circulation and also degree stenosis in LAD degree of stenosis in RCA. I observed that the site of stenosis in LAD artery was proximal and mid (P value < 0.05 significance association). Conclusion: Patients present at the heart institute are right dominant mostly coming with proximal and middle LAD stenosis unlike RCA which commonly presents with distal and middle stenosis, so the middle segment of coronary artery is stenosis in both situations. There are wild variations in dominance artery in relation to reduction of diameter in deferent ethic group. There are no significant associations between the gender and dominant artery.展开更多
Introduction: Atrio-esophageal fistula is a rare but often fatal complication of radiofrequency ablation for atrial fibrillation. Here we report a successful case in anesthetic management of surgical repair of atrio-e...Introduction: Atrio-esophageal fistula is a rare but often fatal complication of radiofrequency ablation for atrial fibrillation. Here we report a successful case in anesthetic management of surgical repair of atrio-esophageal fistula. Case Report: The patient was a 56-year-old man status post radiofrequency ablation for atrial fibrillation one month before presenting with fever and symptoms and signs of cerebral emboli. He was diagnosed as having atrio-esophageal fistula, which required emergent surgical repair. In the operating room, rapid sequence induction was performed with avoidance of positive pressure ventilation before securing airway. Double lumen tube was used for lung isolation for left thoracotomy. Upon exploration, a small fistula was identified. Both atrial and esophageal defects were ligated and an intercostal muscle flap was placed. The patient’s heart rhythm was atrial flutter/atrial fibrillation with marginal hemodynamics during the procedure, but cardioversion was delayed until the fistula was repaired and no remaining air, blood clot or gastric content in the heart was confirmed by epicardial ultrasound. The patient tolerated the surgery and was transferred to ICU, intubated and ventilated. He recovered from surgery and was transferred to a rehabilitation hospital with residual expressive aphasia. Conclusion: We had a successful case in anesthetic management for surgical repair of atrio-esophageal fistula by preventing massive bleeding as well as multiple air embolization through the fistula.展开更多
目的探讨心脏再同步化(CRT)加药物控制心室率治疗慢性心力衰竭(简称心衰)伴持续性心房颤动(房颤)的疗效,分析该类患者对CRT产生反应的关键原因。方法选择26例心衰合并房颤的患者接受最佳药物及CRT手术治疗。CRT加药物控制心室率16例(药...目的探讨心脏再同步化(CRT)加药物控制心室率治疗慢性心力衰竭(简称心衰)伴持续性心房颤动(房颤)的疗效,分析该类患者对CRT产生反应的关键原因。方法选择26例心衰合并房颤的患者接受最佳药物及CRT手术治疗。CRT加药物控制心室率16例(药物组),CRT加房室结消融10例(消融组)。随访1.2±0.2年后观察药物组临床参数(NYHA心功能分级,6 min步行距离),QRS波及超声心动图参数[左室射血分数(LVEF)、左室舒张末期内径(LVEDD)]的变化。结果药物组治疗后心功能分级降低(2.0±0.1 vs 3.0±0.2级),6 min步行距离增加(418.9±81.3 m vs 311.5±65.2 m),QRS波时限缩短(138.1±5.6 ms vs 169.6±4.4 ms)及LVEF增加(0.40±0.01 vs 0.23±0.01)、LVEDD减少(61.9±1.6 mm vs 69.0±1.2 mm),药物组起搏比例为0.90±0.04。其疗效与消融组无差异。结论对于心衰伴房颤患者,CRT加药物控制心室率与加房室结消融一样有效。该类患者对CRT产生反应的关键原因是药物良好的控制心室率及较高的双心室起搏比例。展开更多
文摘AIM: To compare the atrio-ventricular(AV/PV) delay optimization by echocardiography and intra-cardiac electrocardiogram(IEGM) based Quick Opt algorithm in complete heart block(CHB) patients, implanted with a dual chamber pacemaker. METHODS: We prospectively enrolled 20 patients(age 59.45 ± 18.1 years; male: 65%) with CHB, who were implanted with a dual chamber pacemaker. The left ventricular outflow tract velocity time-integral was measured after AV/PV delay optimization by both echocardiography and Quick Opt algorithm method. Bland-Altman analysis was used for agreement between the two techniques. RESULTS: The optimal AV and PV delay determined by echocardiography was 155.5 ± 14.68 ms and 122.5 ± 17.73 ms(P < 0.0001), respectively and by Quick Opt method was 167.5 ± 16.73 and 117.5 ms ± 9.10 ms(P < 0.0001), respectively. A good agreement was observed between optimal AV and PV delay as measured by two methods. However, the correlation of the optimal AV(r = 0.0689, P = 0.77) and PV(r = 0.2689, P = 0.25) intervals measured by the two techniques was poor. The time required for AV/PV optimization was 45.26 ± 1.73 min by echocardiography and 0.44 ± 0.08 min by Quick Opt method(P < 0.0001).CONCLUSION: The programmer based IEGM method is an automated, quick, easier and reliable alternative to echocardiography for the optimization of AV/PV delay in CHB patients, implanted with a dual chamber pacemaker.
文摘The coronary arteries diseases are one of the most causes of mortality and morbidity worldwide, particularly in the developing countries. Coronary obstructions are generally described by location and severity of stenosis. Manual tracing and measurement of the stenosis vessel in comparison to reference location of stenosis can be helpful to classify whether a lesion is significant or not. The aim of this study is to identify the dominant type of circulation carried out in patients presented in heart institute and associated with degree of stenosis in RCA and LAD artery. Materials and Methods: This was a retrospective study carried out on patients reporting to Heart Institute from June 2013 to August 2013 (311 patients records as a total coverage were collected as sample) whose coronary artery angiography revealed pathology in coronary arteries. Result: The findings were 71.7% right dominant, 23.5% left dominant and 4.8% co-dominant;LAD tends to be stricture with right dominant circulation type. LAD artery tends to be stenosis at proximal and mid segment while in the RCA tends to be stenosis in mid and distal segments. The right dominant artery is popular type of circulation in Sudanese people reported in Sudan Heart Institute;there is no significance association between gender and arterial type of circulation and also degree stenosis in LAD degree of stenosis in RCA. I observed that the site of stenosis in LAD artery was proximal and mid (P value < 0.05 significance association). Conclusion: Patients present at the heart institute are right dominant mostly coming with proximal and middle LAD stenosis unlike RCA which commonly presents with distal and middle stenosis, so the middle segment of coronary artery is stenosis in both situations. There are wild variations in dominance artery in relation to reduction of diameter in deferent ethic group. There are no significant associations between the gender and dominant artery.
文摘Introduction: Atrio-esophageal fistula is a rare but often fatal complication of radiofrequency ablation for atrial fibrillation. Here we report a successful case in anesthetic management of surgical repair of atrio-esophageal fistula. Case Report: The patient was a 56-year-old man status post radiofrequency ablation for atrial fibrillation one month before presenting with fever and symptoms and signs of cerebral emboli. He was diagnosed as having atrio-esophageal fistula, which required emergent surgical repair. In the operating room, rapid sequence induction was performed with avoidance of positive pressure ventilation before securing airway. Double lumen tube was used for lung isolation for left thoracotomy. Upon exploration, a small fistula was identified. Both atrial and esophageal defects were ligated and an intercostal muscle flap was placed. The patient’s heart rhythm was atrial flutter/atrial fibrillation with marginal hemodynamics during the procedure, but cardioversion was delayed until the fistula was repaired and no remaining air, blood clot or gastric content in the heart was confirmed by epicardial ultrasound. The patient tolerated the surgery and was transferred to ICU, intubated and ventilated. He recovered from surgery and was transferred to a rehabilitation hospital with residual expressive aphasia. Conclusion: We had a successful case in anesthetic management for surgical repair of atrio-esophageal fistula by preventing massive bleeding as well as multiple air embolization through the fistula.
文摘目的探讨心脏再同步化(CRT)加药物控制心室率治疗慢性心力衰竭(简称心衰)伴持续性心房颤动(房颤)的疗效,分析该类患者对CRT产生反应的关键原因。方法选择26例心衰合并房颤的患者接受最佳药物及CRT手术治疗。CRT加药物控制心室率16例(药物组),CRT加房室结消融10例(消融组)。随访1.2±0.2年后观察药物组临床参数(NYHA心功能分级,6 min步行距离),QRS波及超声心动图参数[左室射血分数(LVEF)、左室舒张末期内径(LVEDD)]的变化。结果药物组治疗后心功能分级降低(2.0±0.1 vs 3.0±0.2级),6 min步行距离增加(418.9±81.3 m vs 311.5±65.2 m),QRS波时限缩短(138.1±5.6 ms vs 169.6±4.4 ms)及LVEF增加(0.40±0.01 vs 0.23±0.01)、LVEDD减少(61.9±1.6 mm vs 69.0±1.2 mm),药物组起搏比例为0.90±0.04。其疗效与消融组无差异。结论对于心衰伴房颤患者,CRT加药物控制心室率与加房室结消融一样有效。该类患者对CRT产生反应的关键原因是药物良好的控制心室率及较高的双心室起搏比例。
