PURPOSE Although primary cardiac tumors are rare, cardiac myxoma is the most common seen intracardiac tumor. This study summarizes our surgical experience with cardiac myxomas. METHODS Twenty-eight cases of cardiac myxoma that were surgically treated in our center between January 1990 and March 2010 were retrospectively reviewed. In all patients the New York Heart Association (NYHA) functional classification was used to assess the functional status, and C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR) levels were measured before and after surgery. RESULTS Nineteen patients were female and 9 male. The mean age was 53.3 ± 12.7 years (range 4-73). The most common symptom was dyspnea (86%). Two patients presented with peripheral embolism. In preoperative assessment of functional status, 24 of the patients were in NYHA Class II, 2 of them were in Class I and the other 2 patients were in Class III. All patients were in NYHA class I in the early postoperative period up to long-term follow up. The mean preoperative CRP and ESR levels were 47.3 ± 14.6 mg/l (range 30-79) and 52.8 ± 21.4 mm/h (range 28-82), respectively. One month after surgery, CRP and ESR levels returned back to normal values. Postoperative CRP and ESR levels were 8.4 ± 2.6 mg/l (range 1-12) and 7.9 ± 4.8 mm/h (range 3-18), respectively. CONCLUSION Myxomas should be considered in all patients with embolism. After surgical resection of cardiac myxomas, the functional status of patients improve and CRP and ESR levels become normal.
Mechanical heart valves are a substitute for malfunctional native heart valves. In this study, the spectral features of S1 and S2 component of the mechanical heart valve sounds obtained after aortic valve replacement (AVR) and mitral valve replacement (MVR) are compared. For this aim, AR methods are applied on the S1 and S2 components of heart sounds taken from 68 recording of 8 patients with AVR and 87 recordings from 11 patients with MVR, thereby yielding power spectrum of the heart sound and six different features are obtained from power spectrum of the heart sounds. Using these features, S1 and S2 components are compared.
A 4 year-old boy was admitted to our clinic with symptoms of pain and ecchymosis in his right leg and foot after injection of benzathine penicilline. There was a localized gangrenous area at the femoral injection site. Doppler ultrasonography showed no arterial flow in the femoral artery and clear evidence of acute thrombosis of the superficial femoral and popliteal veins. Femoral arterial and venous thrombectomy and fasciotomy were performed immediately. After surgery the boy was treated by Iloprost infusion and enoxaparine. One week later necrotic changes had regressed, fasciotomies were closed and only the distal phalanx of the third toe needed amputation. Early surgical intervention and standard management combined with Iloprost infusion may help in healing the lesions by increasing extremity perfusion and may prevent extremity loss.
ethods: After Ethical Committee approval, 50 patients (ASA hysical status III to IV), ages 18-80 yr were randomly assigned to roup I (n 25): prilocaine 2%, 20 mL plus levobupivacaine 0.5% 0 mL, group II (n 25): 0.5%levobupivacaine 20 mL plus normal aline 20 mL. Sensory and motor block were assessed in each of the our major peripheral nerve distributions at 2, 5, 10, 15, 20, 30, 60 in and then every hour thereafter. Time to onset and offset of ensorial and motor block (decreased sensation and muscle activity n any nerve distribution) were also recorded. Chi-square analysisf-contingency table, Unpaired t test, and non-parametric Mannhitney U tests were used when indicated, p 0.05 significant.
OBJECTIVE:Pain management after thoracotomy is significant because pain reduces the postoperative respiratory performance. In this study, the analgesic efficacy and safety of rofecoxib in thoracotomy patients were evaluated. DESIGN:A prospective, randomized, double-blind, and placebo-controlled study. SETTING:This study was performed in the Meram Medical School of Selcuk University Departments of Cardiovascular Surgery and Anesthesiology. PARTICIPANTS:Sixty patients undergoing elective thoracic surgery via thoracotomy were randomized to receive either oral placebo or rofecoxib, 50 mg, 1 hour before surgery. INTERVENTIONS:All patients received a standard anesthetic. Pain scores, sedation scores, heart rate, mean arterial pressure, respiratory rate, analgesic requirements, and side effects were noted 2, 4, 8, 12, 18, 24, 32, 40, and 48 hours after operation. MEASUREMENTS AND MAIN RESULTS:There were no significant differences between the 2 study groups with respect to demographics, sedation score, intraoperative blood loss, and postoperative drainage. Compared with placebo, morphine consumption and pain scores at rest and during coughing were significantly lower with rofecoxib. CONCLUSIONS:The preoperative administration of rofecoxib, 50 mg, provides significant analgesia for postoperative pain relief and decreases additional opioid requirements after thoracotomy.
BACKGROUND:Coronary artery bypass grafting (CABG) with cardiopulmonary bypass (CPB) has the risk of renal dysfunction. The cause of renal dysfunction after CPB is multifactorial, such as nonpulsatile flow, renal hypoperfusion, hypothermia, and duration of CPB. This study compared off-pump technique with on-pump technique on renal function in patients who underwent CABG.METHODS:Sixty patients with normal preoperative renal functions undergoing CABG were randomly assigned to conventional revascularization with CPB (on-pump) or beating heart revascularization (off-pump). Renal functions were assessed up to 10 days postoperatively.RESULTS:Creatinine clearance was found to be significantly higher in the off-pump group than in the on-pump group (p<.05). The off-pump group had significantly less increase in creatinine levels when compared with the on-pump group (p<.05). The free water clearance values decreased similarly in both groups; however, the recovery was more prompt in the off-pump group (p<.05). No significant differences were found in the prevalence of postoperative hemodialysis.CONCLUSION:The off-pump technique may provide a positive contribution and sufficient protection on postoperative renal functions in patients undergoing CABG.
OBJECTIVE The role of leptin in the acute stress response to extracorporeal circulation has been well documented, however, the relationship between leptin and zinc has not been investigated previously. We aimed to research the circulating leptin, zinc, and copper levels before, during, and after the extracorporeal circulation, and effect of preoperative zinc administration to these. METHODS Twenty patients who were taken to elective coronary artery bypass grafting operations using extracorporeal circulation were taken to this research and divided into two equal groups (n1, n2). In both groups blood samples were taken just before the operation (T0), at the end of operation (T1), and at the first postoperative day (T2). In the second group (n2) oral zinc (50 mg, once a day) was administered to patients for 5 days, preoperatively. The serum leptin, zinc, and copper levels were studied. RESULTS In group n1 circulating leptin levels were significantly increased at T2 when compared to T0 and T1 (p<0.05); zinc levels were decreased at T2 when compared to T0 and T1 (p<0.05); copper levels were decreased at T2 when compared to T0 (p<0.05), and decreased at T1 when compared to T0 (p<0.05). In group n2 circulating leptin levels were significantly increased at T2 when compared to T0 and T1 (p<0.05); zinc levels were decreased at T2 when compared to T0 and T1 (p<0.05); copper levels were increased at T2 when compared to T1 (p<0.05). CONCLUSIONS These results indicate that circulating leptin levels increase after the extracorporeal circulation as an acute response, while zinc and copper levels decrease at the same period. Preoperative zinc administration does not prevent the leptin response after extracorporeal circulation.
Objective: The purpose of this study was to investigate the cerebroprotective effects of pentoxifylline (PNX) and aprotinin in dogs using cardiopulmonary bypass (CPB).Materials and methods: Eighteen clinically healthy dogs were divided into three groups: Group 1 ( control, n = 6), Group 2 (PNX, n = 6), and Group 3 (aprotinin, n = 6). PNX was administered at a dose of 300 mg/day in Group 2 three days before the operation and during the operation. Half a million IU aprotinin were added to the prime solution and 500 000 IU were transfused via a central venous jugular catheter preoperatively in Group 3. Blood samples were taken from the central jugular vein before and after CPB and interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-alpha), and S100beta protein were measured. Gliosis was investigated histopathologically in cerebral cortex biopsy samples under light microscopy.Results: The preoperative results of IL-6, TNF-alpha, and S100beta protein values were found to be significantly higher (p < 0.001) when compared with postoperative values. This significant difference was observed in the same parameters between Groups 1 and 2, and 1 and 3 (p < 0.001). There was no significant difference between Groups 2 and 3. Comparison between pre- and postoperative levels of IL-6 and TNF-alpha for Group 2 and Group 3 revealed statistically significant differences (p < 0.001), whereas S100 beta protein levels did not. Histopathological examinations showed significant differences between the control group and PNX and aprotinin, and between aprotinin and PNX groups (p < 0.001).Conclusion: PNX and aprotinin might be useful in order to reduce postoperative cerebral damage in patients undergoing cardiac surgery with CPB.
Objective: This study examined the correlation between tumour necrosis factor-alfa (TNF-α), interleukin (IL)-6 and IL-8, IL-10 and methylprednisolone pretreatment. Methods: This is a prospective, randomized and double-blinded study. Sixty patients undergoing coronary artery bypass grafting (CABG) were randomized to receive either intravenous methylprednisolone (n=30, Group M) or intravenous placebo (n=30, Group S). The patients received intravenously either 30 mg/kg methylprednisolone (Group M) or placebo (Group S) 10 min before and after cardiopulmonary bypass (CPB). In an intensive care unit (ICU), four additional doses were given at 6-hourly intervals. Blood samples for the measurements of TNF-α, IL-6, IL-8 and IL-10 were obtained before induction of anaesthesia (T0=control value), after induction (T1), before starting CPB (T2), after aortic declamping (T3), at the end of CPB (T4) and 6 hours (T5), 12 hours (T6) and 24 hours (T7) after skin closure. Creatine kinase (CK) and creatine kinase isoenzyme MB (CK-MB) were evaluated at the following intervals: T0, T5, T6 and T7. Results: When compared with the control value, TNF-α, IL-6 and IL-8 significantly increased in Group S and Group M (p B-0.05), but these values were significantly greater in Group S than in Group M (p B-0.05). In comparison with the control value, IL-10 increased in both groups (p B-0.05), but was significantly greater in Group M than in Group S (p B-0.05). CK and CK-MB were increased in both groups in postoperative values compared to control values. In Group S, CK and CK-MB levels were significantly lower than in Group M (p B-0.05). Conclusion: In this study, we have found that pre-operative administration of methylprednisolone has decreased TNF-α, IL-6 and IL-8 release, and increased the perfusing IL-10 levels after CPB. Thus, methylpredniso-lone may decrease the inflammatory response during the CPB procedure.
Bacillus-Calmette-Guérin (BCG) vaccination often results in local adverse effects; however, serious or long-term complications are rare. The involvement of sternum among skeletal BCG osteomyelitis is a rarely seen complication of BCG vaccination. Such a complication may confuse with a chest wall tumor and a surgical intervention may be needed for the definite diagnosis. A 9-month-old infant who had a parasternal cold abscess in the anterior chest wall and sternal osteomyelitis of tuberculosis in the late period of BCG vaccination of whom the etiological diagnosis was histopathologically confirmed after surgery is presented and the preoperative diagnostic problems are discussed.
Emergency Department, complaining of exertional dyspnea. A review of his medical history revealed that 3 years earlier he had tried to swallow a knife. It was removed from the esophagus by endoscopy. Two years before admission he told his relatives that he had swallowed another knife, but they did not believe him. Posteroanterior (Fig. 1) and lateral (Fig. 2) views of the chest were obtained, demonstrating a knife-like object in the right main bronchus. A rusty knife without its handle, measuring 5 × 2 cm, was removed from the right main bronchus by bronchoscopy. His postoperative course was uncomplicated. Although the most extraordinary objects have been inhaled or swallowed by mentally challenged people, we have not seen a case like this reported in the literature.■ Surgical Images Imagier chirurgical
OBJECTIVE:The aim of this retrospective study was to review pleural and pericardial complications of patients with hydatid cysts and to analyze the management of therapy for these patients.METHODS:Between 1991 and 2001, 43 (29.7%) of 145 patients presented with pleural and pericardial complications. These patients had spontaneous pneumothorax (6.2%), empyema (7.6%), pleural thickening (10.3%), hepatopleural fistula (2.8%), pericarditis (2.1%), and hepatobronchial fistula (0.7%). There were 22 male and 21 female patients, with a mean age of 30 years.RESULTS:The most common symptom was chest pain (79.1%). In 37 (86.1%) of 43 patients, the cysts were unilateral. The ratio of ruptured cysts was 88.4%. In most of the patients, hydatid cysts developed in the right lung (62.9%) and the lower lobes of the lung (70.4%). Multiple cysts were found in 8 (18.6%) patients. The most common surgical techniques were cystotomy with capitonnage (55.7%) and decortication (69.8%). Radical lung resection was used in 14% of the patients. The morbidity rate was 16.3%, and the mortality rate was 2.3%. The mean follow-up was 19 months with no recurrence.CONCLUSIONS:Although lung-preserving surgical interventions should be preferred, radical surgical procedures have been used more commonly in patients with pleural complications of hydatid cysts, and the postoperative morbidity rate was higher in these patients. Because of this, the surgical treatment should be carried out before the development of pleural complications. In addition, echinococcosis should be considered and included in the differential diagnosis of spontaneous pneumothorax and empyema.
Sadik Kara合作论文数University of Fatih
Institute of Biomedical Engineering
Istanbul, TURKEY1