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1.
J Cardiothorac Surg ; 18(1): 74, 2023 Feb 14.
Article in English | MEDLINE | ID: mdl-36788542

ABSTRACT

Thoracic aortic pseudoaneurysm caused by Brucella melitensis is extremely rare with extremely few cases reported to date. Herein, we present the case of a 65 year-old man with a huge pseudoaneurysm of the proximal descending thoracic aorta, involving the left subclavian artery and distal arch. Surgery was performed to replace the proximal descending aorta with a self-made bovine pericardial duct and the left subclavian artery with a 10 mm artificial vessel under deep hypothermic circulatory arrest; the patient recovered uneventfully. However, continued follow-up is required for long-term results.


Subject(s)
Aneurysm, False , Aortic Aneurysm, Thoracic , Blood Vessel Prosthesis Implantation , Brucella melitensis , Male , Humans , Animals , Cattle , Aged , Aneurysm, False/diagnostic imaging , Aneurysm, False/surgery , Aneurysm, False/complications , Aorta, Thoracic/diagnostic imaging , Aorta, Thoracic/surgery , Aortic Aneurysm, Thoracic/surgery , Aortic Aneurysm, Thoracic/etiology , Blood Vessel Prosthesis Implantation/methods
2.
Anatol J Cardiol ; 25(4): 236-242, 2021 04.
Article in English | MEDLINE | ID: mdl-33830044

ABSTRACT

OBJECTIVE: We aimed to evaluate the incidence of organ cysts in patients with type A aortic dissection (TAAD) to assess the association between organ cysts and TAAD. METHODS: Between January 2018 and December 2018, all patients with TAAD undergoing aortic surgery at our center were enrolled into the study; patients undergoing isolated coronary artery bypass grafting at our center were selected as the control group. Baseline differences between the 2 groups were adjusted using propensity-score matching. The incidence of organ cysts was compared between the 2 groups in total and matched cohorts. RESULTS: We enrolled 290 patients with TAAD and 293 patients with coronary artery disease (control group). The incidence of all organ cysts, liver cysts, renal cysts, and other organ cysts, was significantly higher in the TAAD group than in the control group (50.0% vs. 35.5%, p<0.001; 24.5% vs. 10.2%, p<0.001; 33.4% vs. 24.9%, p=0.023; and 6.2% vs. 1.5%, p=0.005; respectively). Among the 191 propensity score-matched patient pairs, the incidence of organ cysts, liver cysts, renal cysts, and other organ cysts was also significantly higher in the TAAD group than in the control group (57.6% vs. 30.9%, p<0.001; 28.8% vs. 11.0%, p<0.001; 39.3% vs. 19.9%, p<0.001; and 8.4% vs. 1.0%, p=0.001; respectively). The incidence of cysts with single-organ and multiple-organ involvement was also significantly higher in the TAAD group than in the control group (34.0% vs. 20.4%, p=0.003; and 23.6% vs. 10.5%, p=0.001). CONCLUSION: Our results show a higher incidence of organ cysts in patients with TAAD which is indicative of a common pathogenetic pathway between organ cysts and aortic dissection.


Subject(s)
Aortic Dissection , Coronary Artery Disease , Cysts , Aortic Dissection/epidemiology , Coronary Artery Bypass , Cysts/epidemiology , Humans , Incidence , Retrospective Studies
4.
J Thorac Dis ; 12(9): 4711-4716, 2020 Sep.
Article in English | MEDLINE | ID: mdl-33145044

ABSTRACT

BACKGROUND: Aortic arch disease with Kommerell's diverticulum is an uncommon but troublesome condition, and there are a variety of therapeutic modalities for treating this. We retrospectively analyzed cases who underwent open surgery to summarize different situations and approaches. METHODS: From November 2015 to January 2019, nine patients underwent operation for the mentioned disorder. Four patients with aortic dissection received total arch replacement. Two patients suffering from type B aortic dissection (TBAD) have accepted graft replacement from ascending aorta (aAO) to descending aorta. Two patients with true aneurysm and congenital malformation underwent graft bypass from aAO to descending aorta. One patient had graft replacement of descending aorta. RESULTS: There were nine (eight males and one female) patients with median age of 45 (from 14 to 54) years. The 30-day mortality was 11.1% (1 patient) due to refractory respiratory failure caused by compression of bronchus. One patient had complication of peripheral neuropathy and recovered eventually. Eight patients were followed-up for a median period of 20 [9-46] months. All patients were alive and had no long-term complications except one patient who received re-intervention due to delayed dilation of downstream aorta. CONCLUSIONS: Treatment for different arch lesions with Kommerell's diverticulum should follow corresponding indications. Open surgery is the preferred choice and detailed therapeutic strategy depends on the extension of aneurysm, classification and phase of dissection. Stenting might cause airway compression when right-sided arch and vascular ring exist.

6.
Zhongguo Yi Xue Ke Xue Yuan Xue Bao ; 42(2): 147-153, 2020 Apr 28.
Article in Chinese | MEDLINE | ID: mdl-32385019

ABSTRACT

Objective To investigate the risk factors associated with acute renal failure (ARF) after thoracoabdominal aortic aneurysm (TAAA) surgery. Methods A total of 156 patients underwent TAAA repair between January 2009 and December 2017. Renal failure was defined based on the Kidney Disease Improving Global Outcomes criteria. The patients were divided into ARF group and non-ARF group based on the presence/absence of postoperative ARF. The risk factors of ARF were analyzed by univariate analysis and multivariate logistic analysis. Results The subjects included 111 males and 45 females aged (40.4±10.9) years (range:19-65 years). The surgical reasons included aortic dissection (n=130,83.3%),aneurysm (n=22,14.1%),and pseudoaneurysm (n=4,2.6%). The degrees of repair included Crawford extent I in 6 patients (3.8%),extent Ⅱ in 128 patients (82.1%),extent Ⅲ in 20 patients (12.8%),and extent Ⅳ in 2 patients(1.3%). There were 3 patients presented with aortic rupture and 6 patients received emergent operations. Nine patients (5.8%) died within 30 days after surgery,and 8 patients (5.1%) suffered from permanent paraplegia. Thirty-six patients (23.1%) had ARF after surgery,and 18 of them needed dialysis. Multivariate logistic analysis showed that smoking (OR =2.637,95%CI=1.113-6.250,P=0.028),packed red blood cell usage in operation (≥6 U) (OR =5.508,95%CI=2.144-11.930,P=0.000),reoperation for bleeding (OR=3.529,95%CI=1.298-9.590,P=0.013) were independent risk factors for ARF after TAAA repair. Conclusion Smoking,packed red blood cell usage in operation (≥6 U),reoperation for bleeding are the independent risk factors of ARF after TAAA surgery.


Subject(s)
Acute Kidney Injury/etiology , Aortic Aneurysm, Thoracic/surgery , Blood Vessel Prosthesis Implantation/adverse effects , Postoperative Complications , Adult , Aged , Blood Transfusion , Female , Humans , Male , Middle Aged , Reoperation , Retrospective Studies , Risk Factors , Smoking , Treatment Outcome , Young Adult
7.
Zhongguo Yi Xue Ke Xue Yuan Xue Bao ; 41(4): 464-471, 2019 Aug 30.
Article in Chinese | MEDLINE | ID: mdl-31484607

ABSTRACT

Objective To evaluate the early and midterm results of surgical repair of thoracoabdominal aortic aneurysm(TAAA)in patients with Marfan syndrome(MFS). Methods The clinical data of patients with MFS undergoing TAAA repair in Fuwai Hospital between January 2009 and December 2017 were retrospectively analyzed.These patients were divided into two groups:MFS group(n=58)and non-MFS group(n=98).The baseline data,early postoperative results,and midterm follow-up outcomes were compared between these two groups. Results MFS patients were significantly younger(32 years old vs. 45 years old,t=9.603,P=0.000)and more frequently had a history of aortic aneurysm or dissection(19% vs. 0,χ 2=19.996,P=0.000)than non-MFS patients.However,the proportions of males and smokers were significantly lower when compared with non-MFS patients(55.2% vs. 80.6%,χ 2=11.489,P=0.001;13.8% vs. 46.9%,χ 2=17.686,P=0.001).There was no significant difference in proportion of emergency operation,prophylactic cerebrospinal fluid drainage,operation time,intra-operative circulation management,and intra-operative blood transfusion(all P>0.05).The 30-day mortality rate was significantly lower in MFS group than in non-MFS group(0 vs. 9.2%, [Formula: see text]=5.034,P=0.025). Conclusions For patients with MFS,TAAA repair provides lower 30-day mortality and comparative middle-term survival.However,the re-intervention rate is higher among MFS patients,highlighting the importance of close follow-up.


Subject(s)
Aortic Aneurysm, Thoracic/surgery , Blood Vessel Prosthesis Implantation , Marfan Syndrome/complications , Adult , Aortic Dissection , Aortic Aneurysm, Thoracic/complications , Female , Humans , Male , Middle Aged , Retrospective Studies , Treatment Outcome
8.
J Card Surg ; 34(11): 1273-1278, 2019 Nov.
Article in English | MEDLINE | ID: mdl-31475407

ABSTRACT

OBJECTIVE: Kommerell diverticulum with aortic dissection involving aortic arch is a rare but troublesome condition. The purpose of this study is to summarize the experience and strategy of surgical treatment. METHOD: From November 2015 to January 2018, seven consecutive patients underwent surgical treatment in our institution. Three patients with acute type A aortic dissection and one patient with acute type B aortic dissection received total arch replacement and frozen elephant trunk (FET) implantation through median sternotomy. Three patients with chronic type B aortic dissection underwent total aortic arch and descending aorta replacement through median sternotomy and lateral thoracotomy. RESULT: There were seven male patients whose median age was 42.3 ± 11.7 (from 14 to 54) years old. There was no perioperative death in this study. One patient had postoperative critical illness polyneuropathy and required prolonged mechanical ventilation (485 hours) and recovered finally. Follow up was completed for all seven patients with a median follow-up time of 7 (3-46) months. One patient with type A dissection developed aneurysm of the descending aorta distal to the FET and received reintervention. No clinical events and abnormal computed tomography manifestations were found in the other seven patients. CONCLUSION: Total arch replacement and FET through single median incision is a reliable method for Kommerell diverticulum associated with acute dissection involving arch. For Kommerell diverticulum associated with chronic type A or B aortic dissection involving aortic arch, graft replacement by double or single incision is safe and appropriate.


Subject(s)
Aorta, Thoracic/surgery , Aortic Aneurysm/surgery , Aortic Dissection/surgery , Diverticulum/surgery , Humans
9.
Angew Chem Int Ed Engl ; 58(20): 6650-6653, 2019 May 13.
Article in English | MEDLINE | ID: mdl-30908799

ABSTRACT

Reported herein is the synthesis of benzofused six-membered S-heterocycles by intramolecular dehydrogenative C-S coupling using a modular flow electrolysis cell. The continuous-flow electrosynthesis not only ensures efficient product formation, but also obviates the need for transition-metal catalysts, oxidizing reagents, and supporting electrolytes. Reaction scale-up is conveniently achieved through extended electrolysis without changing the reaction conditions and equipment.

10.
ACS Appl Mater Interfaces ; 10(42): 36290-36296, 2018 Oct 24.
Article in English | MEDLINE | ID: mdl-30259735

ABSTRACT

Application of metal-organic frameworks (MOFs) in electrocatalysis is of great interest, but is limited by low electrical conductivities of most MOFs. To overcome this limitation, we constructed a two-dimensional version of MOF-metal-organic layer (MOL) on conductive multiwalled carbon nanotubes (CNTs) via facile solvothermal synthesis. The redox-active MOLs supported on the CNT efficiently catalyze the electrochemical oxidation of alcohols to aldehydes and ketones. Interestingly, this CNT/MOL assembly also endowed the selectivity for primary versus secondary alcohols via well-designed interfacial interactions. This work opens doors toward a variety of designer electrocatalysts built from functional MOFs.

11.
Chemistry ; 24(2): 487-491, 2018 Jan 09.
Article in English | MEDLINE | ID: mdl-29125202

ABSTRACT

A catalyst- and supporting electrolyte-free method for electrochemical dehydrogenative C-S bond formation in continuous flow has been developed. A broad range of N-arylthioamides have been converted to the corresponding benzothiazoles in good to excellent yields and with high current efficiencies. This transformation is achieved using only electricity and laboratory grade solvent, avoiding degassing or the use of inert atmosphere. This work highlights three advantages of electrochemistry in flow, which is (i) a supporting electrolyte-free reaction, (ii) an easy scale-up of the reaction without the need for a larger reactor and, (iii) the important and effective impact of having a good mixing of the reaction mixture, which can be achieved effectively with the use of flow systems. This clearly improves the reported methods for the synthesis of benzothiazoles.

12.
Org Lett ; 19(23): 6332-6335, 2017 12 01.
Article in English | MEDLINE | ID: mdl-29154547

ABSTRACT

An unprecedented electrochemical aromatic C-H oxygenation reaction for the synthesis of 4H-1,3-benzoxazines from easily available N-benzylamides is reported. These oxidative cyclization reactions proceed in a transition metal- and oxidizing reagent-free fashion and produce H2 as only theoretical byproduct. Adapting the C-H oxygenation reaction in an electrochemical microreactor has been demonstrated.

13.
Ann Vasc Surg ; 34: 62-7, 2016 Jul.
Article in English | MEDLINE | ID: mdl-27177704

ABSTRACT

BACKGROUND: To retrospectively analyze the role of intercostal artery reconstruction in the spinal cord protection for patients undergoing extensive thoracoabdominal aortic aneurysm repair. METHODS: From August 2007 to 2014, thoracoabdominal aortas (Crawford II) of 81 consecutive patients with mean age 39.4 ± 10.32 years were repaired. Seventy-three of these patients (90.12%) were diagnosed with aortic dissection in our group, 25 (30.86%) with Stanford type A dissection and 48 (59.26%) with Stanford B aortic dissection. All 25 patients with type A dissection have previously undergone surgical procedures which include Bentall's procedures in 11 cases, ascending aortic replacement in 6 cases, and total aortic arch replacement in 8 cases. All procedures were performed under profound hypothermia with interval cardiac arrest after making a thoracoabdominal incision. Extracorporeal circulation was instituted with 2 arterial cannulae and a single venous cannula in the right atrium. T6-T12 intercostal arteries and L1 and L2 lumbar arteries were formed to a neo-intercostal artery in place and were connected to an 8 mm branch for maintaining spinal cord blood perfusion. Visceral arteries were joined into a patch and anastomosed to the end of the main graft. The left renal artery was anastomosed to an 8 mm branch or joined to the patch. The other 10 mm branches were anastomosed to iliac arteries. RESULTS: With 100% follow-up, early mortality was 7.4%. Six deaths were recorded; 1 patient died of cerebral hemorrhage, 3 of renal failure, 1 of heart failure because of myocardial infarction, and the last one died from the rupture of celiac artery dissection. The rate of postoperative spinal cord deficits was 3.7%, 2 patients with paraplegia and 1 patient with paraparesis. None had bladder or rectum dysfunction. Neo-intercostal arteries were clogged in 12 patients within follow-up period and formed pseudoaneurysm in 2 patients with Marfan syndrome. The mean survival time in this group was 54.22 ± 3.03 months (95% confidence interval 44.37-59.90 months) with survival rate of 92.37% after 1 year, 89.02% after 2 years, and 85.54% after 5 years. All patients were free from spinal cord deficits. CONCLUSIONS: Intercostal artery reconstruction is an effective technique for spinal cord protection in patients with the thoracoabdominal aortic repair. It can achieve favorable results and avoid spinal cord deficits with long-term follow-up.


Subject(s)
Aortic Aneurysm, Thoracic/surgery , Aortic Dissection/surgery , Blood Vessel Prosthesis Implantation , Plastic Surgery Procedures , Spinal Cord Ischemia/prevention & control , Spinal Cord/blood supply , Thoracic Arteries/surgery , Adult , Anastomosis, Surgical , Aortic Dissection/diagnostic imaging , Aortic Dissection/mortality , Aortic Dissection/physiopathology , Aortic Aneurysm, Thoracic/diagnostic imaging , Aortic Aneurysm, Thoracic/mortality , Aortic Aneurysm, Thoracic/physiopathology , Aortography/methods , Blood Vessel Prosthesis Implantation/adverse effects , Blood Vessel Prosthesis Implantation/mortality , Female , Humans , Kaplan-Meier Estimate , Male , Middle Aged , Paraparesis/etiology , Paraparesis/prevention & control , Paraplegia/etiology , Paraplegia/prevention & control , Plastic Surgery Procedures/adverse effects , Plastic Surgery Procedures/mortality , Regional Blood Flow , Retrospective Studies , Risk Factors , Spinal Cord Ischemia/diagnosis , Spinal Cord Ischemia/etiology , Spinal Cord Ischemia/mortality , Spinal Cord Ischemia/physiopathology , Thoracic Arteries/diagnostic imaging , Thoracic Arteries/physiopathology , Time Factors , Tomography, X-Ray Computed , Treatment Outcome
14.
Chemistry ; 22(13): 4379-83, 2016 Mar 18.
Article in English | MEDLINE | ID: mdl-26878987

ABSTRACT

A copper-catalyzed oxidative amination of unactivated internal alkenes has been developed. The Wacker-type oxidative alkene amination reaction is traditionally catalyzed by a palladium through a mechanism involving aminopalladation and ß-hydride elimination. Replacing the precious and scarce palladium with a cheap and abundant copper for this transformation has been challenging because of the difficulty associated with the aminocupration of internal alkenes. The combination of a simple copper salt, without additional ligand, as the catalyst and Dess-Martin periodinane as the oxidant, promotes efficiently the oxidative amination of allylic carbamates and ureas bearing di- and trisubstituted alkenes leading to oxazolidinones and imidazolidinones. Preliminary mechanistic studies suggested a hybrid radical-organometallic mechanism involving an amidyl radical cyclization to form the key C-N bond.


Subject(s)
Alkenes/chemistry , Copper/chemistry , Hydantoins/chemical synthesis , Oxazolidinones/chemical synthesis , Amination , Catalysis , Hydantoins/chemistry , Ligands , Molecular Structure , Oxazolidinones/chemistry , Oxidation-Reduction , Palladium/chemistry
15.
Interact Cardiovasc Thorac Surg ; 18(3): 278-82, 2014 Mar.
Article in English | MEDLINE | ID: mdl-24263579

ABSTRACT

OBJECTIVES: To retrospectively analyse the mid-term clinical results of one-stage repair of extensive aortic aneurysms with total or subtotal aortic replacement. METHODS: From February 2004 to February 2011, 21 patients with extensive aortic aneurysm underwent one-stage total or subtotal aortic replacement for aortic dissection (95.23%) or aortic aneurysms. Operations were performed under circulatory arrest with profound hypothermia. Patients were opened with a mid-sternotomy and a thoraco-abdominal incision. Extracorporeal circulation was instituted as usual. During cooling, the ascending aorta or aortic root was replaced. At the nasopharyngeal temperature of 20°C, the aortic arch was replaced with selective antegrade cerebral perfusion. Staged aortic occlusions allowed for replacement of the descending thoracic and abdominal aorta. T6 to T12 intercostal arteries and L1,L2 lumbar arteries were formed to a neo-intercostal artery in place and were connected to an 8-mm branch for maintaining spinal cord blood perfusion. Visceral arteries were joined into a patch and anastomosed to the end of the main graft. RESULTS: The early mortality was 4.8% (1 of 21); 1 patient died due to renal failure and multiple organ failure. No patient had spinal cord deficits postoperatively. Two patients had postoperative stroke at Day 5 and 7, respectively. Twenty patients were all alive with good life status during the follow-up period ranging from 18 to 84 months postoperatively. One patient was reoperated with aortic valve replacement because of massive valve insufficiency after 2 years. During the follow-up period, reconstructed intercostal arteries were clogged in 3 patients and dilatated in 2 patients with Marfan syndrome. CONCLUSIONS: One-stage repair of extensive aortic aneurysms with total or subtotal aortic replacement is safe and effective. It is feasible with acceptable surgical risks and satisfactory results. It can eliminate the risk of remnant aortic aneurysm rupture in staged total aortic replacement and has satisfactory mid-term results.


Subject(s)
Aortic Aneurysm/surgery , Blood Vessel Prosthesis Implantation/methods , Adult , Aortic Aneurysm/diagnosis , Aortic Aneurysm/mortality , Aortography/methods , Blood Vessel Prosthesis Implantation/adverse effects , Blood Vessel Prosthesis Implantation/mortality , Circulatory Arrest, Deep Hypothermia Induced , Female , Hospital Mortality , Humans , Male , Middle Aged , Perfusion , Postoperative Complications/mortality , Postoperative Complications/surgery , Reoperation , Retrospective Studies , Risk Assessment , Risk Factors , Time Factors , Tomography, X-Ray Computed , Treatment Outcome
16.
Chin Med J (Engl) ; 126(18): 3511-4, 2013.
Article in English | MEDLINE | ID: mdl-24034099

ABSTRACT

BACKGROUND: Aortic valve replacement (AVR) is a safe and effective method in the treatment of aortic valve diseases. This study aimed to increase the understanding on re-treatment of aortic diseases after aortic valve surgery through a retrospective analysis of 47 related cases. METHODS: Forty-seven patients (38 males and 9 females) with previous aortic valve surgery have received reoperation on aorta from January 2003 to June 2012, and the mean interval time of re-intervention to aortic disease was 6 years ((6.0 ± 3.8) years). The secondary aortic surgery included aortic root replacement (14 cases), ascending aorta replacement (10 cases), aortic root/ascending aorta plus total arch replacement with stented elephant trunk implantation (21 cases), and total thoracoabdominal aorta replacement (2 cases). All these patients have received outpatient re-exams or follow-up by phone calls. RESULTS: After the initial aortic valve replacement, patients suffered from aortic dissection (25 cases, 53%), ascending aortic aneurysm (12 cases, 26%) or aortic root aneurysm (10 cases, 21%). Diameter in ascending aorta increased (5.2 ± 7.1) mm per year and aortic sinus (3.3 ± 3.1) mm per year. The annual growth value of diameter in ascending aorta was higher in patients with rheumatic heart disease than that in Marfan syndrome (P < 0.05). All 47 patients have received reoperation on aorta. One patient died in operating room because aortic dissection seriously involved right coronary artery. Seven patients had renal insufficiency after operation; neurological complications occurred in 14 patients including 7 patients with stroke and the others with transient brain dysfunction. All patients were followed up, the mean survival time was (97.25 ± 17.63) months, 95% confidence interval was 55.24-73.33 months. Eight cases were died during follow-up and five-year survival rate was 83%. CONCLUSION: To reduce the aortic adverse events after first aortic valve surgery, it is necessary to actively treat and strictly follow-up patients with previous aortic operation especially patients with Marfan syndrome and rheumatic heart disease.


Subject(s)
Aortic Diseases/surgery , Heart Defects, Congenital/surgery , Heart Valve Diseases/surgery , Adult , Aortic Diseases/mortality , Aortic Valve/surgery , Bicuspid Aortic Valve Disease , Female , Heart Defects, Congenital/mortality , Heart Valve Diseases/mortality , Humans , Male , Middle Aged
17.
Zhonghua Wai Ke Za Zhi ; 50(5): 422-5, 2012 May.
Article in Chinese | MEDLINE | ID: mdl-22883948

ABSTRACT

OBJECTIVE: To analyze the risk factors for hospital mortality after operations for type A aortic dissection. METHODS: Totally 766 consecutive patients (586 male and 180 female patient, aged (45±12) years, ranging from 16 to 78 years), who underwent surgery for type A aortic dissection from January 2001 to December 2010, were studied retrospectively. Preoperative and operation related clinic factors were analyzed by univariate analysis, followed by Logistic regression model, to identify the risk factors of hospital mortality. RESULTS: Overall, 37 patients (4.8%) died during hospitalization. On univariate analysis, significant risk factors for hospital mortality were male, acute status, renal dysfunction, cardiac dysfunction, cardiopulmonary bypass time, duration of operation, volume of blood transfusion, re-operation for bleeding (χ2=4.008-27.093, P<0.05). On Logistic regression model, independent risk factors were acute status (OR=2.784, 95%CI: 1.166-6.649, P=0.021), renal dysfunction (OR=6.285, 95%CI: 1.738 - 22.723, P=0.005), cardiac dysfunction (OR=3.052, 95%CI: 1.083-8.606, P=0.035), re-operation for bleeding (OR=3.690, 95%CI: 1.262-10.791, P=0.017), volume of blood transfusion (OR=1.033, 95%CI: 1.008-1.058, P=0.010). Additionally, male (OR=0.387, 95%CI: 0.177-0.848, P=0.018) was protective factor, and alternatively, female was indeed one of the independent risk factors for hospital mortality. CONCLUSION: Female, acute status, renal dysfunction, cardiac dysfunction, re-operation for bleeding, volume of blood transfusion were independent risk factors for hospital mortality after operations for type A aortic dissection.


Subject(s)
Aortic Aneurysm, Thoracic/surgery , Aortic Dissection/surgery , Hospital Mortality , Adolescent , Adult , Aged , Aortic Dissection/mortality , Aortic Aneurysm, Thoracic/mortality , Female , Follow-Up Studies , Humans , Logistic Models , Male , Middle Aged , Retrospective Studies , Risk Assessment , Young Adult
18.
Chin Med J (Engl) ; 125(9): 1552-5, 2012 May.
Article in English | MEDLINE | ID: mdl-22800820

ABSTRACT

BACKGROUND: Sinus of Valsalva aneurysm (SVA) is a rare cardiac anomaly, and SVA with discrete membranous subaortic stenosis is even rarer. The aim of the study was to make sure the incidence of SVA with discrete membraneous subaortic stenosis in SVA and their surgical results. We retrospectively analyzed 234 patients receiving surgical repair of SVA and reported the incidence of ventricular septal defect, aortic regurgitation, and discrete membranous subaortic stenosis. We also reported seven cases of SVA combined with discrete membranous subaortic stenosis and their surgical results. METHODS: Between January 1999 and December 2009, seven patients of SVA with discrete membranous subaortic stenosis underwent surgical repair of SVA and resection of subaortic discrete membrane. There were six male and one female patients. The mean age was (33.71 ± 13.25) years (range 16 - 52 years). Associated cardiovascular lesions were aortic regurgitation (n = 7), ventricular septal defect (n = 5), coarctation of aorta (n = 1), bicuspid aortic valve (n = 1), patent ductus arteriosus (n = 1), and aortic valve stenosis (n = 1). The aortic valve was replaced in four patients and valvuloplasty was done in three. The other co-existing anomalies were corrected at the same time. All the seven patients were followed up from 18 to 125 months (mean (63.14 ± 39.54) months). Among 234 SVA patients who underwent surgical repair, the number of cases with coexisting ventricular septal defect, aortic regurgitation, and discrete membranous subaortic stenosis was 129, 108, and 7, respectively. RESULTS: There was neither early death after operation nor late death during the follow-up period. All the seven patients were in the New York Heart Association (NYHA) functional classes I and II. There was no recurrence of discrete subaortic membrane during the follow-up period. The incidence of ventricular septal defect, aortic valve incompetence, and discrete membranous subaortic stenosis among 234 SVA patients was 55.13%, 46.15%, and 2.99%, respectively. CONCLUSIONS: Surgical repair of SVA with discrete membranous subaortic stenosis showed good mid-term results. Resection of discrete subaortic membrane should be done actively while repairing SVAs. Long-term results need to be followed up.


Subject(s)
Discrete Subaortic Stenosis/surgery , Sinus of Valsalva/surgery , Adolescent , Adult , Discrete Subaortic Stenosis/pathology , Female , Humans , Male , Middle Aged , Sinus of Valsalva/pathology , Treatment Outcome , Young Adult
19.
Zhonghua Wai Ke Za Zhi ; 50(11): 987-90, 2012 Nov.
Article in Chinese | MEDLINE | ID: mdl-23302481

ABSTRACT

OBJECTIVES: To summarize the clinical experience of stented elephant trunk with femoral artery bypass grafting procedure to treat severe aneurysmal dilation of Stanford A aortic dissection or aortic aneurysm. To study the surgical indication and surgical strategy of chronic Stanford A aortic dissection and aneurysmal dilation, also to summarize the early follow-up results. METHODS: From February 2006 to November 2011, 19 patients with Stanford A aortic dissection or aortic aneurysm with extented aneurysmal dilation (megaaorta) received stented elephant trunk with femoral artery bypass grafting procedure. There were 3 acute cases and 16 chronic cases with 14 male patients and 5 female patients. Average age of this group was (42 ± 8) years and average body weight was (70 ± 15) kg. One patient was aortic aneurysm and all the other were Stanford A aortic dissection. Eight patients were Mafan's syndrome. Ascending aorta replacement or Bentall's operation was done first and total arch replacement and stented elephant trunk operation was done under deep hypothermia and circulatory arrest. After the patient was weaned from cardiopulmonary bypass, bypass from ascending aorta to femoral artery was done subcutaneously using the 10 mm graft in the same femoral incision. RESULTS: There was no operative mortality. One patient had chylothorax which recovered with medical treatment and one patient got paraplegia after surgery. The cardiopulmonary bypass time was (176 ± 42) minutes, aortic cross clamping time was (88 ± 25) minutes and deep hypothermia and low flow rate time was (23 ± 8) minutes. The blood pressure of the lower extremities were normal after operation. Follow-up time was (22 ± 19) months. All patients survived. False lumen closure rate at the stent level was 100%. CT scan at 3 to 6 months after operation showed no obvious dilation of the descending aorta. Two patient successfully received second stage operation of total (subtotal) thoracoabdominal aorta replacement. CONCLUSIONS: Stented elephant trunk and aorta to femoral artery bypass is a safe procedure to treat aortic dissection or aortic aneurysm with extended aneurysmal dilation. This procedure can effectively increase the blood supply of the lower extremities due to small true lumen of the descending aorta, and may decrease the speed of dilation of the false lumen. It is also a practical procedure to lay the foundation for the second stage operation of normothemia thoracoabdominal aorta replacement.


Subject(s)
Aortic Aneurysm/diagnostic imaging , Aortic Aneurysm/surgery , Aortic Dissection/surgery , Blood Vessel Prosthesis Implantation/methods , Adult , Aortic Dissection/diagnostic imaging , Female , Femoral Artery , Follow-Up Studies , Humans , Male , Middle Aged , Stents , Tomography, X-Ray Computed , Treatment Outcome
20.
Zhonghua Wai Ke Za Zhi ; 48(15): 1158-60, 2010 Aug 01.
Article in Chinese | MEDLINE | ID: mdl-21055010

ABSTRACT

OBJECTIVES: To summarize the experience of surgical repair of ruptured sinus of Valsalva aneurysm to right atrium and to compare the difference between through right atrium repair and transaortic combined with right atrium approach. METHODS: Between January 2004 and December 2009, 53 patients with ruptured sinus of Valsalva aneurysm to right atrium underwent surgical repair. There were 35 male and 18 female, aged from 15 to 63 with a mean of (33 ± 9) years. Repair through right atrium had undergone in 40 patients (group I), while transaortic combined with right atrium approach in 13 patients (group II). Surgical results between the two group and group were compared in cardiopulmonary bypass time, clamp aorta time, mechanical ventilation time, ICU time and postoperative stay time. RESULTS: There were no significant differences between two groups in cardiopulmonary bypass time [(86 ± 29) min vs. (96 ± 30) min], clamp aorta time [(59 ± 29) min vs. (71 ± 25) min], mechanical ventilation time [(9 ± 4) h vs. (16 ± 23) h], ICU time [(35 ± 23) h vs. (35 ± 23) h], postoperative stay time [(7.1 ± 0.9) d vs. (7.7 ± 2.8) d] (P > 0.05). Follow-up was performed from 1 to 64 months, with a mean of (32 ± 21) months. There was no death during follow up. One needed operation due to severe aortic valve regurgitation. One combined with coronary artery disease used medication. Heart function (NYHF) of the other patients were I and II degree during follow up. CONCLUSIONS: Surgical repair of ruptured sinus of Valsalva aneurysm to right atrium shows good result. There is no significant difference between through right atrium repair and transaortic combined with right atrium approach.


Subject(s)
Aortic Rupture/surgery , Sinus of Valsalva , Adolescent , Adult , Aorta/surgery , Female , Follow-Up Studies , Heart Atria/surgery , Humans , Male , Middle Aged , Retrospective Studies , Treatment Outcome , Young Adult
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