M Arslan

Gulhane Military Medical Academy, Engüri, Ankara, Turkey

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Publications (37)54.66 Total impact

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    ABSTRACT: The aim of this retrospective study was to compare the short-term outcomes of surgical versus transcatheter closure of secundum atrial septal defect (ASD) in adults. From January 2008 to October 2012, 229 patients aged 18 years and older with significant isolated secundum ASDs were admitted to our hospital. We focused only on objective data obtained from their medical records. We collected and compared a total of 163 patients with isolated secundum ASD, who were treated with device occlusion or surgical closure, and had no missing data. Postoperative outcomes, rhythm disturbances, residual ASD, infection rates and length of hospital stay were compared. Complete follow-up data were available for 42 (46%) patients in the device group and for 121 (87%) in the surgery group. Complete closure was observed in 41 of the 42 patients (97.6%) in the device group (p = 0.258) and in all 121 in the surgery group (100 %) (p > 0.05). There were no mortalities. The mean length of hospital stay in the device group was 1.92 ± 0.43 days and in the surgery group 7.14 ± 0.14 days (p < 0.01). The transcatheter approach for closure of ASDs is an effective and safe treatment option when performed for certain indications. Broadening the spectrum of indications may cause some adverse events. Surgical treatment remains a good alternative for all patients with ASDs and can be performed safely in order not to increase procedure-related complications.
    Cardiovascular journal of Africa. 04/2014; 25:1-4.
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    ABSTRACT: Objectives: We investigated the effect of bosentan on intimal hyperplasia of carotid artery anastomoses in rabbits. Study design: Eighteen New Zealand male rabbits were randomized into two groups, as drug (Group B) and non-drug (Group A). The right carotid artery of all the subjects was transected and anastomosed end-to-end with 10/0 polypropylene suture. The left carotid artery was left intact. Group B subjects received 30 mg/kg/day oral bosentan for 21 days, starting 3 days before the operation. Group A subjects did not receive any medication. After 28 days, the anastomoses site and the contralateral control site were removed, and samples were investigated histomorphometrically. Results: Significant intimal hyperplasia was observed at all anastomoses compared to the non-anastomotic left side. Bosentan decreased significantly the intimal area [Group A: 48.3 µm2 (37.1 µm2-65.7 µm2), Group B: 31.4 µm2 (12.2 µm2-63.2 µm2), (p=0.04)] and intima/media area ratio [Group A: 0.49 (0.13-0.74), Group B: 0.22 (0.09-0.37), (p=0.024)] compared to the non-drug group. Conclusion: According to our investigation, bosentan decreased the intimal hyperplasia developed in a rabbit carotid artery model. Further investigations are needed to support the potential clinical utilization of bosentan after vascular interventions.
    Turk Kardiyoloji Dernegi arsivi: Turk Kardiyoloji Derneginin yayin organidir 03/2014; 42(2):147-153.
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    M Kadan, G Erol, B S Oz, M Arslan
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    ABSTRACT: We aimed to examine the effects of topical hypothermia on inflammatory markers in patients undergoing coronary artery bypass surgery.
    Cardiovascular journal of Africa. 01/2014; 25(2):67-72.
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    ABSTRACT: We aimed to highlight the use of a minimally invasive approach in uncomplicated congenital heart surgery. We investigated retrospectively 32 children below 10 years of age who underwent elective closure of ostium secundum type (n = 27), sinus venosus type (n = 4) and ostium primum type (n = 1) atrial septal defects through a limited skin incision and partial lower sternotomy between August 2001 and December 2008. All patients had cannulation through the same incision for cardiopulmonary bypass. A pericardial patch was used to close the defect in 8 patients and direct suturing in 24. The mean time from the skin incision to cannulation was 56 ± 23 min. Total bypass time was 27 ± 12 min, and crossclamp time was 15 ± 8 min. Mean length of hospital stay was 4 ± 2 days. We did not encounter any complications or mortality. A minimally invasive approach, consisting of a limited skin incision and partial lower sternotomy, is a safe, reliable, and cosmetically advantageous method in uncomplicated congenital heart disease surgery, which can be performed widely, and may replace the standard approach without increasing mortality and morbidity.
    Asian cardiovascular & thoracic annals 08/2013; 21(4):414-7.
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    ABSTRACT: Chronic obstructive pulmonary disease (COPD) has traditionally been recognised as a predictor of poorer early outcomes in patients undergoing coronary artery bypass grafting (CABG). The aim of this study was to analyse the impact of different COPD stages, as defined by the Global Initiative for Chronic Obstructive Lung Disease (GOLD) spirometric criteria, on the early surgical outcomes in patients undergoing primary isolated non-emergency CABG METHOD: Between January 2008 and April 2012, 1 737 consecutive patients underwent isolated CABG in the Department of Cardiovascular Surgery of Gulhane Military Academy of Medicine; 127 patients with the diagnosis of moderate-risk COPD were operated on. Only 104 patients with available pulmonary function tests and no missing data were included in the study. Two different treatment protocols had been used before and after 2010. Before 2010, no treatment was applied to patients with moderate COPD before the CABG procedure. After 2010, a pre-treatment protocol was initiated. Patients who had undergone surgery between 2008 and 2010 were placed in group 1 (no pre-treatment, n = 51) and patients who had undergone surgery between 2010 and 2012 comprised group 2 (pre-treatment group, n = 53). These two groups were compared according to the postoperative morbidity and mortality rates retrospectively, from medical reports. The mean ages of the patients in both groups were 62.1 ± 7.6 and 64.5 ± 6.4 years, respectively. Thirty-nine of the patients in group 1 and 38 in group 2 were male. There were similar numbers of risk factors such as diabetes, hypertension, renal disease (two patients in each group), previous stroke and myocardial infarction in both groups. The mean ejection fractions of the patients were 53.3 ± 11.5% and 50.2 ± 10.8%, respectively. Mean EuroSCOREs of the patients were 5.5 ± 2.3 and 5.9 ± 2.5, respectively in the groups. The average numbers of the grafts were 3.1 ± 1.0 and 2.9 ± 0.9. Mean extubation times were 8.52 ± 1.3 hours in group 1 and 6.34 ± 1.0 hours in group 2. The numbers of patients who needed pharmacological inotropic support were 12 in group 1 and five in group 2. Duration of hospital stay of the patients was shorter in group 2. While there were 14 patients with post-operative atrial fibrillation (PAF) in group 1, the number of patients with PAF in group 2 was five. Whereas there were seven patients who had pleural effusions requiring drainage in group 1, there were only two in group 2. There were three mortalities in group 1, and one in group 2. There were no sternal infections and sternal dehiscences in either group. Pre-treatment in moderate-risk COPD patients improved post-operative outcomes while decreasing adverse events and complications. Therefore for patients undergoing elective CABG, we recommend the use of medical treatment.
    Cardiovascular journal of Africa. 06/2013; 24(5):184-7.
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    ABSTRACT: The aim of this study was to determine a method to decrease the use of homologous blood during openheart surgery using a simple blood-conservation protocol. We removed autologous blood from the patient before bypass and used isovolumetric substitution. We present the results of this protocol on morbidity and mortality of surgery patients from two distinct time periods. Patients from the two surgical phases were enrolled in this retrospective study in order to compare the outcomes using autologous or homologous blood in open-heart surgery. A total of 323 patients were included in the study. The autologous transfusion group (group 1) comprised 163 patients and the homologous transfusion group (group 2) 160 patients. In group 1, autologous bloods were prepared via a central venous catheter that was inserted into the right internal jugular vein in all patients, using the isovolumetric replacement technique. The primary outcome was postoperative In-hospital mortality and mortality at 30 days. Secondary outcomes included the length of stay in hospital and in intensive care unit (ICU), time for extubation, re-intubations, pulmonary infections, pneumothorax, pleural effusions, atrial fibrillation, other arrhythmias, renal disease, allergic reactions, mediastinitis and sternal dehiscence, need for inotropic support, and low cardiac-output syndrome (LCOS). The mean ages of patients in groups 1 and 2 were 64.2 ± 10.3 and 61.5 ± 11.6 years, respectively. Thirty-eight of the patients in group 1 and 30 in group 2 were female. There was no in-hospital or 30-day mortality in either group. The mean extubation time, and ICU and hospital stays were significantly shorter in group 1. Furthermore, postoperative drainage amounts were less in group 1. There were significantly fewer patients with postoperative pulmonary complications, pneumonia, atrial fibrillation and renal disease. The number of patients who needed postoperative inotropic support and those with low cardiac output was also significantly less in group 1. Autologous blood transfusion is a safe and effective method in carefully selected patients undergoing cardiac surgery. It not only prevents transfusion-related co-morbidities and complications but also enables early extubation time and shorter ICU and hospital stay. Furthermore, it reduces the cost of surgery.
    Cardiovascular journal of Africa. 05/2013; 24(4):121-3.
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    ABSTRACT: Chylopericardium is a rare complication of cardiac surgery that is performed from a midline sternotomy. Here we present a case of a 61-year-old male patient with late-onset postoperative chylopericardium following combined coronary artery bypass grafting and mitral valve surgery, and the applied treatment modality.
    Cardiovascular journal of Africa. 01/2013; 24(4):e7-9.
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    ABSTRACT: Surgical strategy in patients with haematological malignancies must be planned and carried out with the specific aim of decreasing postoperative complications. The aim of this study was to present our experience on patients previously diagnosed with haematological malignancies who subsequently underwent cardiac surgery. We include data to assist other surgeons predict factors affecting postoperative morbidity and mortality in this group of patients. Fifteen patients diagnosed with haematological malignancies who had cardiac surgery were retrospectively analysed. Eight patients had chronic lymphocytic leukaemia, six had non-Hodgkin's lymphoma and the rest had chronic myelocytic leukaemia. Coronary artery bypass graft surgery was performed on all of them. There were no hospital mortalities. The average follow-up period was 35 ± 11 (23-56) months. Three patients required early postoperative re-operation because of excessive bleeding. No mortalities were seen in the early postoperative period. There were five (33%) deaths during the late follow-up period. Three patients were lost due to intracranial bleeding (confirmed by autopsy) in the 16th, 23rd and 38th months after surgery. The remaining two patients had sudden death in the eighth and 55th months from nondetectable causes. Cardiac surgery can be performed with acceptable early postoperative outcomes in patients with haematological malignancies. Intracranial bleeding is an important factor contributing to late mortality and patient selection and risk stratification are crucial to improving surgical benefits.
    Cardiovascular journal of Africa. 05/2012; 23(4):194-6.
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    ABSTRACT: Carotid body tumors are infrequent neoplasms in daily practice. Diagnostic difficulties exist because of their slow growth and asymptomatic progress. The surgical treatment is complicated and difficult due to their proximity to vascular and neural structures. In this study we present the results of 12 patients operated for carotid body tumor that underwent preoperative percutaneous direct embolization. The data of 12 patients, diagnosed with carotid body tumor and surgically treated at our department between 2000 and 2010, was retrospectively analyzed. Duplex ultrasound, computerized tomography and selective carotid angiography were the applied diagnostic tools. Two days before the planned surgery all patients underwent percutaneous direct embolization to achieve devascularization of the tumor. Afterwards, surgical excision of the mass under general anesthesia was performed in all cases. Five tumors were classified as Shamblin type I (41.7%), and the others were type II (58.3%). All masses were removed sub-adventitially and no vascular reconstruction was necessary. There was no mortality and no permanent neural damage. Malfunction of the tongue was observed in only one case, which recovered completely in one month. There was one recurrence detected by Duplex ultrasound and angiography during the follow up period. Surgical excision is mandatory to be performed as soon as diagnosed in carotid body tumors. Preoperative direct percutaneous embolization of the mass helps to devascurize the tumor, enabling an optimal surgical procedure. The outcomes of such a combined intervention are excellent and neurovascular structure preservation decreases complication and morbidity rates.
    VASA.: Zeitschrift für Gefässkrankheiten. Journal for vascular diseases 11/2011; 40(6):461-6. · 1.01 Impact Factor
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    ABSTRACT: Proanthocyanidin is a bioflavonoid known to have protective effect against oxidative injury. We investigated the cardioprotective effect of proanthocyanidin. Thirty-two Rattus Norvegicus rats were categorized equally as the control group (CG), proanthocyanidin group (PCG), ischemia group (IG) and proanthocyanidin-treated group (PCT). Rats in CG and IG were fed standard rat food and PCG and PCT were fed standard rat food plus proanthocyanidin (100 mg/kg/day twice a day by oral gavage) for 3 weeks. In CG and PCG the myocardial samples were prepared immediately, and in IG and PCT hearts were placed in transport solution and kept at 4°C for 5 hours, then prepared for evaluation. Malondialdehyde (MDA) level, superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPx) activities were measured. MDA levels were significantly higher in IG and PCT than in CG and PCG. The activity of SOD was significantly lower in IG and higher in PCG than in the other groups. The activity of GPx was significantly lower in IG than in the other groups. The activities of CAT were significantly lower in IG and PCT than in the other groups and were significantly lower in IG than PCT. Histopathologic evaluation revealed normal findings in CG and PCG. While ischemic injury was observed in IG, the content of muscle fibers was better preserved in PCT. Proanthocyanidin may have a protective effect on myocardial ischemic injury.
    Medical science monitor: international medical journal of experimental and clinical research 11/2011; 17(11):BR326-331. · 1.22 Impact Factor
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    Turk Kardiyoloji Dernegi arsivi: Turk Kardiyoloji Derneginin yayin organidir 06/2011; 39(4):343.
  • International Journal of Cardiology - INT J CARDIOL. 01/2011; 147.
  • International Journal of Cardiology - INT J CARDIOL. 01/2011; 147.
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    ABSTRACT: Aim of Study: To evaluate the necessity and efficacy of quinidine fumarate, verapimil, or amiodarone prophylaxis for sinus rhythm maintenance in patients who experienced atrial fibrillation after coronary artery bypass surgery. Methods: Between 1992 and 1995, this prospective, randomized, placebo-controlled study examined 120 patients in whom atrial fibrillation occurred and was restored to sinus rhythm by pharmacological therapy or direct current cardioversion in the immediately postoperative period after coronary artery bypass surgery. There were no significant differences in perioperative characteristics among the patients, who were randomly separated into four groups in the course of discharge. In group 1 (n = 30), patients did not receive antiarrhythmic drugs. Quinidine fumarate was given in group 2 (n = 30), verapimil in group 3 (n = 30), and amiodarone in group 4 (n = 30). Patients were monitored six times over a 90-day postoperative period by 24-hour Holter monitoring and routine examination. Results: The recurrent atrial fibrillation usually developed within 15 days of discharge. Atrial fibrillation occurred in one patient (3.33%) in group 1, and two each (6.66%) in groups 2, 3, and 4. Atrial fibrillation was asymptomatic and occurred with slow ventricular response in groups 3 and 4. Side effects occurred in 5 patients (16.6%) given quinidine, 1 patient given amiodarone, but in no patient given verapimil. Conclusions: There were no significant differences in the maintenance of sinus rhythm among the four groups, so we suggest that long-term prevention of atrial fibrillation in patients with coronary artery bypass grafting was not necessary at the postdischarge period.
    Journal of Cardiac Surgery 07/2007; 11(1):61 - 64. · 1.35 Impact Factor
  • The Annals of thoracic surgery 09/2004; 78(2):757. · 3.45 Impact Factor
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    ABSTRACT: Division of the sternum is primarily a blind procedure in reoperation and carries an increased risk of injury for major cardiac structures in the presence of adhesions between the posterior table and the heart. Two hundred patients were randomly divided into two groups. Cardiopulmonary bypass was established through the femoral artery and vein in group 1 (n = 100) patients before sternal reentry. Carpentier dual-stage femoral venous return cannula was used in all group 1 patients. Cardiopulmonary bypass was performed after sternal reentry in group 2 (n = 100) patients. Six severe cardiac injuries developed in group 2. Cardiopulmonary bypass time was 93 +/- 9 minutes in group 1 and 71 +/- 11 minutes in group 2 (p = 0.011), and the operation time was 155 +/- 23 minutes in group 1 and 185 +/- 32 minutes in group 2 (p = 0.024). Inotropic therapy was required in 52 patients in group 1 and 76 patients in group 2 (p = 0.032). Average chest drainage was 450 +/- 135 mL in group 1 and 850 +/- 250 mL in group 2 (p < 0.001). Average fresh whole blood transfusion was 3.3 +/- 1.2 U in group 1 and 5.8 +/- 0.9 U in group 2 (p = 0.033). Average intensive care unit stay was 2.2 +/- 1.3 days in group 1 and 4.5 +/- 2.3 days in group 2 (p = 0.025). Average hospital stay was 7.3 +/- 2.4 days in group 1 and 9.1 +/- 3.1 days for group 2 (p = 0.011). Cardiopulmonary bypass by bicaval Carpentier femoral venous cannula before resternotomy not only allows adequate cardiopulmonary bypass flow but also significantly reduces the risk of cardiac injury and catastrophic hemorrhage and allows safe reopening. Although this procedure increases cardiopulmonary bypass time, the operation time, bleeding, and blood transfusion requirement are significantly reduced.
    The Annals of Thoracic Surgery 03/2004; 77(3):977-81; discussion 982. · 3.45 Impact Factor
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    ABSTRACT: Satisfactory results of bileaflet preserving mitral valve replacement (MVR) had forced several institutes to preserve both leaflets during MVR. Modifications were required to prevent the preserved tissue from interfering with prosthetic valve function, to implant an adequate size of valve and to prevent left ventricle outflow tract (LVOT) obstruction. Conventional MVR was performed to 51 patients (group 1) and bileaflet preserving MVR was performed to 43 patients (group 2). Mitral anterior leaflet incised from the middle of the leaflet to mitral annulus without chordal injury in group 2 patients. Sutures were placed through the mitral annulus first and then passed from the bottom to the tip of anterior leaflet. Posterior leaflet was also preserved. Prosthetic valve was put down into the mitral annulus and sutures were ligated. Excessive anterior leaflet tissue was attached to left atrial wall. Cross-clamping time was 45 +/- 5.33 minutes versus 61.32 +/- 4.43 minutes (p = 0.0001) and total cardiopulmonary bypass time was 60.80 +/- 4.44 minutes versus 80.55 +/- 3.65 minutes (p = 0.0001) in groups 1 and 2, respectively. Inotropy requirement was higher in group 1 (p = 0.0058). When compared with preoperative values postoperative left ventricle ejection fraction (LVEF) increased both at rest (from 52.74% +/- 3.88% to 62.86% +/- 3.18%, p = 0.0001) and during exercise (from 53.16% +/- 3.16% to 64.11% +/- 2.46%, p = 0.0001) in bileaflet preserving MVR group. But in conventional MVR group LVEF decreased postoperatively both at rest (from 51.45% +/- 4.27% to 48.27% +/- 3.35%, p = 0.0001) and during exercise (from 54.47% +/- 7.36% to 42.96% +/- 3.58%, p = 0.0001). Leaflet preserving MVR operation not only improves the left ventricular performance but also reduces the mortality and morbidity after MVR. LVEF increases both at rest and during exercise. Risk of LVOT obstruction can be completely eliminated with our simple technique.
    Journal of Cardiac Surgery 01/2004; 19(6):528-34. · 1.35 Impact Factor
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    ABSTRACT: Acute renal failure (ARF) following cardiac surgery remains a significant cause of mortality. The aim of this study is to compare early and intensive use of continuous veno-venous hemodiafiltration (CVVHDF) with conservative usage of CVVHDF in patients with ARF after cardiac surgery. Due to ARF, CVVHDF was required in two groups of a total of 61 adult patients (1.79% of all patients). Group 1 included 27 patients while Group 2 included 34 patients. CVVHDF was performed on Group 1 when creatinine level exceeded 5 mg/dL, or potassium level exceeded 5.5 mEq/L irrespective of the urine output. CVVHDF was performed on Group 2 when urine output was less than 100 mL within consecutive 8 hours, with no response to 50 mg furosemide with the supplementary criterion that urine sodium concentration should be >40 mEq/L before the administration of furosemide. The mean elapsed time between the surgery and the initiation of CVVHDF was 2.56 +/- 1.67 days in Group 1 and 0.88 +/- 0.33 days in Group 2 (p = 0.0001). The mean intensive care unit (ICU) stay for Group 1 was 12 +/- 3.44 days and 7.85 +/- 1.26 days for Group 2 (p = 0.0001). ICU mortality rate was 48.1% for Group 1 and 17.6% for Group 2 (p = 0.014). The overall hospital mortality rate was 55.5% for Group 1 and 23.5% for Group 2 (p = 0.016). Recognition of ARF and early beginning of the CVVHDF are extremely important. The sooner the ARF after surgery is recognized and CVVHDF is performed, the higher the likelihood of the reduction of the hospital mortality.
    Journal of Cardiac Surgery 01/2004; 19(1):17-20. · 1.35 Impact Factor
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    ABSTRACT: The mortality and morbidity of aortic valve replacement (AVR) after prior coronary artery bypass surgery (CABG) with patent left internal thoracic artery (LITA) is significant. The risk of LITA injury and inadequate myocardial preservation during the cross-clamp period may cause myocardial pump failure. A total of 43 patients with a patent LITA graft underwent AVR. The patients were divided into the two groups. Group 1 included 19 patients who underwent AVR with deep hypothermia (20 degrees C) without LITA clamping. Group 2 included 24 patients in whom LITA flow was controlled through supraclavicular occlusion and AVR performed with moderate hypothermia (28 degrees C). Average cardiopulmonary bypass time (CPB) time was 118.79 +/- 20.36 minutes in group 1 and 102.67 +/- 9.66 minutes in group 2 (p = 0.006). Average cross-clamp time was 53.79 +/- 7.26 minutes in group 1 and 49.63 +/- 6.7 minutes in group 2 (p = 0.022). Inotropic support was required in 12 patients in group 1 and 4 patients in group 2 (p = 0.002). Average intensive care unit stay was 4.68 +/- 2.24 days in group 1 and 2.29 +/- 0.46 days in group 2 (p < 0.001). Average hospital stay was 11.84 +/- 2.91 days in group 1 and 8.04 +/- 2.38 days in group 2 (p < 0.001). Mortality due to myocardial failure developed in 4 patients in group 1 but in none of the patients in group 2 (p = 0.02). Proximal control of LITA flow by extrathoracic supraclavicular occlusion reduces the incidence of myocardial failure due to nonhomogenous cardioplegia delivery to the anterior wall of the heart, resulting in improved myocardial protection and the elimination of the need for deep hypothermia.
    The Annals of Thoracic Surgery 05/2003; 75(5):1422-8; discussion 1428. · 3.45 Impact Factor
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    ABSTRACT: Former studies have pointed out that hemodynamic stress imposed by associated valvular disease is the primary factor in the development of ascending aorta dilatation. At present, intrinsic wall pathology is blamed for dilatation and aneurysm formation in bicuspid aortic valve (BAV). Aortic valve replacement (AVR) was performed on 78 adult patients with BAV. Patients were divided into two groups. Group I (n = 27) underwent only AVR. Group II (n = 51) underwent AVR and additional ascending aorta procedures such as Shawl-Lapel aortoplasty (n = 12) and tailoring aortoplasty (n = 9). Dacron wrapping was performed after both techniques were done. Ascending aorta replacement was done on 11 patients by using composite graft. Supracoronary graft replacement was performed in 3 patients after AVR. Ascending aorta diameter increment was 1.25 mm/year in normotensive and 2.80 mm/ year in hypertensive patients. Ascending aorta aneurysm (diameter > 55 mm) developed in eight patients in the postoperative period in group I. Ascending aorta dilatation did not develop in group II patients. Mean survival time +/- standard error (SE) was 128 +/- 11 and 99 +/- 4 months and survival possibility was 77.78% and 92.16%. Freedom from reoperation was 65.4% and 95.9% in 8 years in group I and group II, respectively. Aortic wrapping with or without aortoplasty has a beneficial effect not only in dilated ascending aorta but also in all nondilated BAV patients with normal-sized aortic diameter. Ascending aorta wrapping in BAV patients preserves the endothelial lining and prevents further dilatation, aneurysm formation, and dissection.
    Journal of Cardiac Surgery 01/2003; 18(2):173-80. · 1.35 Impact Factor