睡眠过程中反复出现呼吸暂停造成的间歇低氧是阻塞性睡眠呼吸暂停低通气综合征( OSAHS) 的主要病理生理学特点, 它能够导致自主神经, 特别是交感神经兴奋性异常增高[1] , 后者可能是OSAHS合并心血管疾病包括高血压、充血性心力衰竭、心肌梗死以及心律失常的主要危险因素之一[2,3] 。现将慢性间歇低氧( chronic intermittent hypoxia,CIH) 所致交感神经异常兴奋的相关研究作一综述。
Objective To examine the relation between compensatory sweating（CS） and the resection site of the sympathetic nerve china during sympathectomy in treatment of palmal hyperhidrosis and thus to investigate the potential mechanism of the occurrence of compensatory sweating. Methods From October 2004 to December 2005, 128 patients with primary palmar hyperhidrosis were randomly divided into two groups： 61 with T3 sympathicectomy （T3 group） and 67 with T4 sympathicectomy （T4 group）. All were treated under general anesthesia, single lumen intubation and via intercostal mediastinoscopic surgery. Results No morbidity or mortality occurred. Sweating of target organs was cured in all cases. Rates of minor CS in Group T3 or T4 showed no statistically significant （χ^2 = 1.866, P = 0.122）. Rate of moderate CS in group T4 was significantly lower than that in group T3 （χ^2=7.618, P=0.006）. No severe CS occurred. Conclusion Occurrence rate and severity of compensatory sweating are lower in T4 resection than in T3.
Objective To summary the effects and prospects of percutaneous radiofrequency catheter-based renal sympathetic denervation for resistant hypertension. Methods Literatures which about the relationship between renal sympathetic nerves and hypertension， and the technical prospect and inadequacy of percutaneous radiofrequency catheter-based renal sympathetic denervation for resistant hypertension， were analyzed and reviewed. Results Hypertension， which as a seriously public health problem， was the focus of clinical treatment currently. Renal sympathetic nerve was certified playing an important role in regulation of blood pressure， and percutaneous radiofrequency catheter-based renal sympathetic denervation had potential superiority in the treatment of resistant hypertension. Conclusion Percutaneous radiofrequency catheter-based renal sympathetic denervation is an effective method for resistant hypertension.
ObjectiveTo discuss the anesthetic procedure for left thoracic sympathectomy under thoracoscope for long QT syndrome patients. MethodsWe selected 8 patients with long QT syndrome classified American Society of Anesthesiologists Ⅱ-Ⅲ who were going to undergo left thoracic sympathectomy under thoracoscope between July 2011 and October 2014 as our study subjects. They were given a moderate amount of beta blockers before operation, inducted with 0.1 mg/kg midazolam, 3-6 μg/kg fentanyl, 2-4 mg/kg propofol, 0.3-0.6 mg/kg cis-atracurium, and maintained with propofol 1-4 mg/(kg·h) combined with 0.025-2.000 μg/(kg·min) fentanyl. We recorded the mean arterial pressure (MAP), heart rate (HR), pulse oxygen saturation (SpO2) and airway peak pressure, and end-tidal carbon dioxide before anesthesia induction (T0), at endotracheal intubation (T1), during artificial lung-collapse when surgery initiated (T2), 5 minutes after surgery initiation (T3), 15 minutes after surgery initiation (T4), during artificial lung-collapse at the end of surgery (T5) and during extubation (T6). ResultsWhen compared with T0, T2 got a higher MAP, T3 and T4 had a slower HR (P<0.05), but all were within a normal range. All the patients showed little change in airway peak pressure and end-tidal carbon dioxide during the surgery with no statistically significant difference (P>0.05). ConclusionProper anesthetic procedure for left thoracic sympathectomy under thoracoscope for long QT syndrome patients can reduce the incidence of perioperative malignant arrhythmia.
ObjectiveTo review the progress of percutaneous radiofrequency catheter-based renal sympathetic denervation for resistant hypertension as well as the inadequacy, and to reevaluate the clinical significance of the technology. MethodsDomestic and foreign literatures were collected to summary the progress of percutaneous radiofrequency catheter-based renal sympathetic denervation in treatment of resistant hypertension. ResultsThe percutaneous radiofrequency catheter-based renal sympathetic denervation in the treatment of resistant hypertension had obtained some positive results recently, but the long-term outcomes and safety of the technology were still subjected to further evaluation. ConclusionThe effect of percutaneous radiofrequency catheter-based renal sympathetic denervation for resistant hypertension remains to be controversial, and both the equipment and technology of radiofrequency catheter-based ablation need to be improved.
ObjectiveTo investigate the feasibility, safety and effectiveness of video-assisted thoracic surgery (VATS) sympathectomy under monitored anesthesia care (MAC) and local anesthesia (LA) without endotracheal intubation as a new fast track recovery surgical strategy for the treatment of palmar hyperhidrosis. MethodsA total of 124 patients with intermediate or severe hyperhidrosis who were admitted to Guangdong General Hospital were enrolled in this study. With SPSS18 random number generator, all the patients were divided into MAC+LA group and general anesthesia (GA) group with 62 patients in each group. There were 43 males and 19 females in MAC+LA group with their age of 22.25±6.22 years, and 42 males and 20 females in GA group with their age of 23.98±6.67 years. During the surgery, MAC+LA group patients received MAC and oxygen via nasal tube or face mask instead of endotracheal intubation, and GA group patients received GA, endotracheal intubation and controlled ventilation. Clinical outcomes were compared between the 2 groups. ResultsAll the patients received their operations safely. None of MAC+LA group patients received conversion to GA and controlled ventilation. There was statistical difference in operation time (47.18±12.06 minutes vs. 39.33±13.21 minutes, P=0.002) and length of theatre stay 84.52±22.56 minutes vs. 134.68±26.12 minutes, P=0.000) between MAC+LA and GA group patients. There was no statistical difference in blood loss, incidence of intraoperative SpO2 lower than 95% (2 patients vs. 0 patient), postoperative hospital stay, incidence of postoperative compensatory sweating (86.5% vs. 89.0%) and patient satisfaction rate (94.59% vs.95.12%) between the 2 groups. No intraoperative pain, postoperative complication or symptom recurrence was observed in either group. There was statistical difference in anesthetic preparation time (20.52±10.55 minutes vs. 36.47±12.16 minutes), duration between operation finish and returning to ward (11.26±7.09 minutes vs. 59.39±19.89) minutes and hospitalization cost (RMB 6 376.86±746.00 yuan vs. RMB 8 812.04±867.93 yuan) between the 2 groups. The incidence of postoperative sore throat (0% vs. 100%), monitor time (4 hours vs. 12 hours) and time to resume oral intake (2 hours vs. 6 hours) of MAC+LA group were significantly lower or shorter than those of GA group. ConclusionVATS sympathectomy under MAC and LA can avoid complications of GA and endotracheal intubation, and provide a safe, feasible, effective and more minimally invasive fast track alternative for the treatment of palmar hyperhidrosis.
ObjectiveTo investigate the feasibility and clinical outcomes of bilateral endoscopic thoracic sympathectomy (ETS) through single hole for palmar hyperhidrosis (PHH). MethodsFrom August 2012 to April 2013, 19 PHH patients were admitted in the Department of Thoracic Surgery, The Third People's Hospital of Chengdu. There were 7 male and 12 female patients with their age of 24.7(15-33) years. All the patients underwent bilateral ETS through single hole under general anesthesia. ResultsAll the operations were successfully performed. Average operation time was 28.4 minutes, and postoperative hospital stay was 1.6 days. Seventeen patients were followed up for 2 to 10 months. PHH symptoms all disappeared without Horner's syndrome or hemopneumothorax. ConclusionBilateral ETS through single hole is a minimally invasive, reliable and safe procedure for PHH with low morbidity.
ObjectiveTo explore clinical outcomes of video-assisted thoracoscopic sympathectomy (VATS) for the treatment of palmar hyperhidrosis (PH), and compare the results between T2 segment surgery and T2-T3 segment surgery. MethodsFrom April 2009 to August 2012, 48 consecutive PH patients underwent single-port VATS in Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University. There were 18 male and 30 female patients with their age of 14-40 (22.1±5.4) years. According to different surgical procedures, all the patients were divided into T2 segment group (29 patients) and T2-T3 segment group (19 patients). Preoperative characteristics, surgical results and postoperative morbidity were compared between the 2 groups. ResultsPH symptoms disappeared after VATS in all the patients. Patients were followed up for 6-44(21.3±10.1)months, and 2 patients were lost in both T2 segment group and T2-T3 segment group. The incidence of postoperative compensatory sweating was 66.7% (18/29) in T2 segment group and 70.6% (12/19) in T2-T3 segment group. The incidence of moderate to severe compensatory sweating of T2 segment group was significantly higher than that of T2-T3 segment group (51.9% vs. 29.4%, P < 0.05). Twenty-six patients (96.3%) in T2 segment group and 16 patients (94.1%) in T2-T3 segment group were completely or partially satisfied with surgical results. ConclusionVATS is the only effective surgical procedure for the treatment of moderate to severe PH. Both T2 and T2-T3 segment sympathectomy can effectively reduce PH symptoms after VATS, but the incidence of postoperative compensatory sweating is high, which has negative influence on patients'satisfaction.
ObjectiveTo evaluate the efficiency and clinical outcomes of endoscopic thoracic sympathectomy (ETS) with flexible thoracoscopy under local anesthesia with monitored anesthesia care in primary palmar hyperhidrosis. MethodsFrom March 2011 to March 2013, we performed ETS with flexible thoracoscopy under local anesthesia with monitored anesthesia in 23 patients with primary palmar hyperhidrosis (PH), including 10 males and 13 females with their age of 25.6±7.2 years (range, 17-32 years). T3 sympathectomy was performed with flexible endoscopy under local anesthesia with monitored anesthesia care. All patients were followed up until May 2014. ResultsDuring surgery, the vital signs of the patients remained stable. Operation time was 30-40 minites. The symptom of PH disappeared right in the surgery. All patients were discharged from the hospital on the 2nd postoperative day. One patient received unilateral sympathectomy because of pleural adhesion. Other 22 patients received follow-up to May 2014 and no reoccurrence was reported. ConclusionETS with flexible thoracoscopy under local anesthesia with monitored anesthesia is a safe, microinvasive and effective method.