CoronaVac, BNT162b2 and heterologous COVID-19 vaccine outcomes in patients with ventricular assist device.

BACKGROUND: A consensus has not yet been reached regarding which COVID-19 vaccine program should be applied in patients with ventricular assist device (VAD). Our aim was to assess the clinical outcome of inactivated, mRNA and heterologous vaccine program in patient with VAD. METHODS: In this retrospective and cross-sectional study; adult patients who underwent VAD implantation between January 2012 and September 2021 and received any vaccine that were used in Republic of Türkiye for COVID-19, were included. The patients were divided into three groups according to the type of vaccine; "inactivated," "mRNA" and "heterologous." Clinical outcomes were analyzed. RESULTS: Eighteen patients were in each group in the "inactivated," "mRNA" and "heterologous" groups. Mean age was 51.6 ± 12 years in "inactivated" group, 42.5 ± 15.5 years in "mRNA" group and 41.1 ± 15.4 years in "heterologous" group. There was no significant difference between the groups in age, gender, body surface area, body mass index and etiology (p > 0.05). After last dose of vaccines, the number of patients had COVID-19 positive test were three (16.7%), one (5.6%), and two (11.1%) in "inactivated," "mRNA" and "heterologous" groups, respectively. Pump thrombosis was seen in two patients in "mRNA" group and one patient in "heterologous" group. No pump thrombosis was seen in "inactivated" group. COVID-19-related death or intubation was not observed. CONCLUSION: All vaccine that used for COVID-19 are safe and effective in patients with VAD. In countries that give priority to inactivated vaccines, mRNA vaccines may then be made as boosters.

Building a patient blood management program in a large-volume tertiary hospital setting: Problems and solutions.

Successful implementation of a patient blood management program necessitates the collaboration of a strong organization and a multidisciplinary approach. We organized a meeting with broad participation in our center to establish a consensus for implementation of a specific patient blood management program. International and domestic experiences were shared, the importance of coordination and execution of different pillars in patient blood management were discussed, and the problems about the blood transfusion system were also investigated with the proposal for solutions. The data obtained from this meeting are presented to be a guide for similar large-volume tertiary hospitals for integration of a patient blood management protocol.

Early and long-term results of heart transplantation with reoperative sternotomy.

BACKGROUND: This study aims to investigate the effects of reoperative sternotomy on early and long-term outcomes after heart transplantation. METHODS: We retrospectively reviewed data of a total of 92 patients (72 males, 20 females; mean age 36 years; range, 3 to 61 years) who underwent orthotopic heart transplantation between May 1998 and July 2014. The patients were divided into three groups. Group A (n=23) included patients who underwent previous cardiac surgery with sternotomy other than ventricular assist device implantation; Group B (n=12) included patients who were bridged-to-transplant with a ventricular assist device; and Group C (n=57) included patients who for the first time underwent heart transplantation without previous sternotomy. Preoperative and operative data of the three groups were compared. The short- and long-term outcomes of all groups were analyzed. RESULTS: There was no significant difference among the groups, except for the age and preoperative international normalized ratio. Total ischemia time in the ventricular assist device group was longer than Group C. The length of intensive care unit stay was also longer in the ventricular assist device group than the other groups. The amount of postoperative chest tube drainage and blood transfusion was higher in Group A. Early mortality rate was significantly higher in Group A. There was no significant difference in survival among the three groups in the long-term. According to the logistic regression analysis, no variable was found to be a significant risk factor for mortality. CONCLUSION: Reoperative sternotomy other than ventricular assist device implantation was found to be a risk factor for early mortality; however, mid and long-term survival rates were similar to patients in whom transplantation was the primary procedure. In patients with reoperative sternotomy, heart transplantation can be performed with similar risks to patients without resternotomy with careful selection and accurate pre- and intraoperative surgical approach.

Our early and mid-term results for endovascular repair of abdominal aortic aneurysms.

BACKGROUND: In this study, we present our early and mid-term results of endovascular aneurysm repair in patients with infrarenal abdominal aortic aneurysms. METHODS: Between December 2011 and January 2017, a total of 154 patients (136 males, 18 females; mean age 71.7 years; range, 55 to 94 years) who underwent endovascular aneurysm repair were retrospectively analyzed. Data including demographic characteristics of the patients, pre-procedural additional diagnoses, mortality and morbidity rates, length of intensive care unit and hospital stays, amounts of blood products used, complications and reinterventions were recorded. RESULTS: Seven patients underwent intervention in the emergency setting due to aneurysm rupture, while 147 patients received elective surgery. The mean follow-up was 35 (range, 12 to 72) months, the mean length of intensive care unit stay was 1.1 (range, 1 to 4) days, and the mean length of hospital stay was 3.1 (range, 3 to 7) days. A mean 0.3 units of erythrocyte suspension was used during the treatment. Endoleak developed in 16 patients, occlusion in the graft leg in two patients, increased aneurysmal diameter in six patients, and wound healing problems in five patients. Cross femoral bypass was applied in two patients, balloon dilation in three patients, proximal extension in three patients, and distal extension in four patients. Intraoperative mortality occurred in one patient. The total mortality rate was 7% and first 30-day mortality rate was 2%. CONCLUSION: Our study results suggest that endovascular aneurysm repair has certain advantages including a low operative mortality rate, short intensive care unit and hospital stays, and less blood product use. In addition, this technique can be performed with regional anesthesia in high-risk comorbid patients.

Perioperative planning for cardiovascular operations in the COVID-19 pandemic.

Coronavirus disease-2019 (COVID-19) is a serious health concern which alert all healthcare professionals worldwide. There are two main issues caused by this pandemic regarding for the healthcare system. First, it is a necessity to postpone many elective procedures/surgeries to reduce the burden of the healthcare system which may be confronted with strain by the increased speed of transmission. Therefore, we aimed to develop an algorithm called as Level of Priority to identify the priority and deferrability of cardiovascular diseases requiring surgery. Second, it is essential to perform surgery and intensive care unit follow-up in a setting where the infection prevention measures are followed for primary patients requiring emergency cardiovascular surgery. In this article, we present necessary precautions to be exercised to provide the patient safety and the highest level of protection for the surgical team.

Acute Fulminant Myocarditis Successfully Bridged to Recovery with Left Ventricular Assist Device and Complicated by Flail Mitral Valve.

Acute fulminant myocarditis is a life-threatening inflammatory disease of the myocardium characterized by the rapid deterioration of the hemodynamic status of the affected individual. With prompt recognition and appropriate management, complete recovery of ventricular function is likely within a few weeks. We introduce a 28-year-old man with acute fulminant myocarditis, who experienced circulatory collapse following acute angina and dyspnea. The patient had high troponin levels with low ejection fraction and normal coronary arteries. He was successfully bridged to recovery with a left ventricular assist device but was complicated by flail mitral valve. Perioperative myocardial biopsy was also compatible with myocarditis. At 4 months' follow-up, the patient was stable with functional capacity I according to the New York Heart Association's classification. A possible mechanism for this very rare complication is the rupture of the chordal structure secondary to the fragility of an inflamed subvalvular apparatus stretched by a recovered ventricle.

[Future of advanced heart failure and mechanical support devices: A Cardiology-Cardiovascular Surgery Consensus Report]. / Ileri evre kalp yetersizligi ve mekanik destek cihazlarinin gelecegi: Kardiyoloji-Kalp Damar Cerrahisi Uzlasi Raporu.

Heart failure is a progressive disease. A considerable number of patients eventually reach an advanced or terminal phase, in spite of developments in diagnostic procedure, alternative treatments that can slow progression, management, and follow-up. In addition to palliative care of patients in the terminal phase, accurate recognition of advanced disease is vital in the determination of therapeutic options. Overall management of patients with heart failure requires the collaboration of professionals from multiple disciplines. Still, patients with advanced heart failure should be managed by a "heart team," as indicated by guidelines; communication and collaboration among cardiologists, cardiovascular surgeons, and other medical staff responsible for patient care is necessary. While our country has physicians experienced in the management of patients with advanced heart failure, these professionals are not distributed evenly across the country, and equitable access to therapeutic options is not provided. Hence, progress has yet to be made regarding appropriate referrals and patient circulation. The aims of the present consensus report are to strengthen the connection between certified, experienced centers and those that care for patients irrespective of disease phase and healthcare staff, as well as to raise awareness and provide information regarding conditions in Turkey.

Low-Dose Valacyclovir for Cytomegalovirus Infection Prophylaxis After a Heart Transplant.

OBJECTIVES: Cytomegalovirus infection is a major cause of morbidity and mortality in solid-organ transplant. Low doses of valacyclovir have been administered as cytomegalovirus prophylaxis in our institution for years. To the best of our knowledge, there is no published study of a low-dose regimen for cytomegalovirus prophylaxis in heart transplant patients. Therefore, our aim was to determine the results of low doses of valacyclovir in heart transplant. MATERIALS AND METHODS: Between September 2006 and December 2014, sixty-eight patients underwent orthotopic heart transplants. All of the patients received triple immunosuppressive therapy after surgery. During the next 6 months, sulfamethoxazole/trimethoprim was administered for Pneumocystis jiroveci pneumonia, and toxoplasmosis. Additionally all patients received valacyclovir hydrochloride (1000 mg/d, oral) for cytomegalovirus prophylaxis and nystatin oral rinse for prophylaxis of fungal infections. RESULTS: There was only 1 cytomegalovirus infection at follow-up. The patient had cytomegalovirus pneumonia at 17-month follow-up. In response to treatment with 1-week intravenous ganciclovir, the patient was discharged with a further 6-month oral valacyclovir therapy (1000 mg/d). CONCLUSIONS: In this study, we hypothesized that daily use of low-dose valacyclovir (1000 mg/d) is not only sufficient for cytomegalovirus prophylaxis but also beneficial in terms of cost.

[Bacteremia caused by ciprofloxacin-resistant Salmonella serotype Kentucky: a case report and the review of literature]. / Siprofloksasine dirençli Salmonella serotip Kentucky bakteriyemisi: Olgu sunumu ve literatürün gözden geçirilmesi.

Salmonella infections can be seen in four clinical types, namely gastroenteritis, bacteremia/sepsis, enteric fever and carriage. These infections can result in uncomplicated diarrhea in most cases, but can lead to invasive disease requiring antimicrobial therapy and can be life-threatening in elderly or immunocomprimised patients. Broad-spectrum cephalosporins and fluoroquinolones are crucial options in the treatment of the invasive infections. Ciprofloxacin resistance is rarely seen in non-typhoid Salmonella enterica isolates, and only in S. Typhimurium, S. Choleraesuis and S. Schwarzengrund. In this report, we aimed to discuss a patient infected with ciprofloxacin-resistant Salmonella Kentucky under the light of data from our country and the world. A 52-year-old male patient wih acute myocardial infarction was hospitalized in intensive care unit of cardiovasculer surgery for left ventricular assist device (LVAD) implantation for the treatment of left ventricular disfunction. On the seventh day of LVAD and coronary artery bypass grafting (CABG), the patient presented high fever and productive cough. His physical examination revealed hyperemia around the insertion point of right jugular central venous catheter (CVC) and a serous discharge from the insertion point of LVAD located just below the inferior edge of sternum. Empiric IV cefoperazone/sulbactam (SCF) therapy was started with the prediagnosis of pneumonia and bloodstream infection. The blood samples taken from peripheral veins and CVC, and swabs taken from LVAD insertion point for culture when the patient was febrile, revealed the growth of bacteria with S type and lactose-negative colonies on EMB and SS media. Biochemical characteristics of the isolate were as follows: lactose fermentation negative, H2S positive, IMVIC (-,+,-,+), urease negative, lysine/ornithine decarboxylase positive and motile. The bacteria was then identified as Salmonella enterica serotype Kentucky (8,20;i;z6) by agglutination tests. Antibiotic susceptibility tests were conducted according to CLSI guidelines and it was found as ampicillin- and ciprofloxacin-resistant. Ciprofloxacin resistance of the isolate was confirmed with E-test. Stool culture was performed to investigate the source of infection, and S. Kentucky was isolated. On the 15th day of SCF treatment, LVAD was taken out, and tissue cultures taken from the fibrillar tissues between pericardial layers during surgery, also yielded S. Kentucky growth. On the second day of SCF therapy the patient's fever returned normal and on the seventh day, CBC and CRP values were normalized. Nevertheless, the clinical situation of the patient worsened gradually and on the 40th day he was intubated due to low oxygen saturation and pleural effusion. His antibiotherapy was stopped on 42nd day as the blood cultures were negative and his clinical situation was attributed to cardiac failure. The patient died four days after the antibiotherapy has stopped due to cardiac reasons. To our knowledge, this is the first reported case infected with ciprofloxacin-resistant Salmonella Kentucky in our country.

The Role of Extra-Anatomic Bypass in the Surgical Treatment of Acute Abdominal Aortic Occlusion.

BACKGROUND: Aortic occlusion is rare catastophic pathology with high rates of mortality and severe morbidity. In this study, we aimed to share our experience in the management of aortic occlusion and to assess the outcomes of extra-anatomic bypass procedures. METHODS: Eighteen patients who had undergone extra-anatomic bypass interventions in the cardiovascular surgery department of our tertiary care center between July 2009 and May 2013 were retrospectively evaluated. All patients were preoperatively assessed with angiograms (conventional, computed tomography, or magnetic resonance angiography) and Doppler ultrasonography. Operations consisted of bilateral femoral thromboembolectomy, axillobifemoral extra-anatomic bypass and femoropopliteal bypass and were performed on an emergency basis. RESULTS: In all patients during early postoperative period successful revascularization outcomes were obtained; however, one of these operated patients died on the 10th postoperative due to multiorgan failure. The patients were followed up for a mean duration of 21.2±9.4 months (range, 6 to 36 months). Amputation was not warranted for any patient during postoperative follow-up. CONCLUSION: To conclude, acute aortic occlusion is a rare but devastating event and is linked with substantial morbidity and mortality in spite of the recent advances in critical care and vascular surgery. Our results have shown that these hazardous outcomes may be minimized and better rates of graft patency may be achieved with extra-anatomic bypass techniques tailored according to the patient.

A rare ocular complication after a heart transplant: toxoplasma retinitis.

Ocular infections after a heart transplant are rare; but when present, they generally appear during the first year after surgery. Ocular infections may cause significant loss of vision and morbidity if not diagnosed early. For that reason, heart transplant patients should undergo a routine visual examination during follow-up. We report our experience regarding the followup and treatment of a case of toxoplasma retinitis diagnosed in one of our heart transplant recipients.

Single-centre experience with perioperative use of intraaortic balloon pump in cardiac surgery.

BACKGROUND: Intraaortic balloon pump (IABP) is frequently used in cardiac surgery in order to prevent or treat low cardiac output syndrome. Although being widely used and forming the first line therapy in these haemodynamically unstable patients despite maximal medication, optimal timing for IABP insertion is still discussed. This retrospective study evaluates hospital outcomes of patients receiving IABP at preoperative, intraoperative and postoperative periods during cardiac surgery. MATERIALS AND METHODS: Between 2006 and 2012, 2196 patients underwent open cardiac surgery in our centre. IABP was used in 121 (5.4%) patients. Nine patients had preoperative IABP insertion, 76 patients (62.8%) had intraoperative insertion to ease weaning from cardiopulmonary bypass, and 36 patients (29.8%) had postoperative insertion in the intensive care unit mainly due to refractory haemodynamic instability. Hospital outcomes of these 121 patients were analysed retrospectively. RESULTS: The majority of the patients were male (men 89, 73.6% and women 32, 26.4%; mean age was 65.9±11.5 years). Among the cohort 87 (71.9%) underwent isolated coronary artery bypass surgery (CABG) and the rest (34 patients, 28.1%) were operated for valve disease with/without CABG or for CABG with carotid endarterectomy, left ventricular aneurysm repair, post myocardial infarction ventricular septal defect or pathologies involving ascending aorta. The overall hospital mortality of the whole cohort was 27.3%. Mortality rates according to IABP timing were 33.3%, 19.7% and 41.7% for pre, intra and postoperative insertion, respectively. Logistic regression analysis identified female gender, low ejection fraction (<30%), complex surgery and postoperative insertion as risk factors for mortality. CONCLUSION: IABP insertion timing in cardiac surgery is crucial and many reports advocate early insertion since patient outcomes are poor for late insertions. This single centre study also confirms that the least favourable results are among patients with postoperative IABP insertion.

Single-stage repair of aortic coarctation and multiple concomitant cardiac lesions through a median sternotomy.

Through a median sternotomy, we performed a single-stage repair of severe aortic coarctation, ventricular septal defect, patent foramen ovale, and mitral valve insufficiency. The severe aortic coarctation was repaired by interposing a synthetic graft between the distal ascending aorta and the descending aorta. We first repaired the coarctation with the 38-year-old man on cardiopulmonary bypass, before aortic cross-clamping, in order to shorten the cross-clamp time.

The Sorin Freedom SOLO stentless tissue valve: early outcomes after aortic valve replacement.

We prospectively evaluated the hemodynamic performance of the SORIN Freedom SOLO aortic bioprosthesis, a stentless bovine pericardial valve designed for supra-annular implantation. Forty patients (mean age, 71.68 ± 5.25 yr; 29 men) with severe aortic stenosis underwent aortic valve replacement from January 2008 through August 2009. Patients were evaluated by transthoracic echocardiography and clinical examination, both preoperatively and again at 6 and 24 postoperative months. Peak and mean transvalvular gradients, end-diastolic and end-systolic diameters, interventricular septal and posterior wall thicknesses, indexed volumes of ventricular mass, degrees of aortic regurgitation, and left ventricular ejection fractions were calculated echocardiographically. The valves were implanted with single polypropylene sutures. In the early postoperative period, 1 patient (2.5%) died of multiorgan failure. The mean aortic cross-clamp time was 86.05 ± 34.2 min. Echocardiographic peak gradients were 84.54 ± 16.85 mmHg (preoperative), 29.59 ± 6.27 mmHg (6 mo postoperative), and 24.33 ± 4.67 mmHg (24 mo postoperative) (P < 0.001); left ventricular mass indices were 176.26 ± 39.98 g/m(2) (preoperative), 139.21 ± 30.1 (6 mo postoperative), and 120.51 ± 23.88 g/m(2) (24 mo postoperative) (P < 0.001). During follow-up, the maximum aortic insufficiency recorded was trace, and no valve dysfunctions were observed. Temporary thrombocytopenia was documented in all patients during early postoperative follow-up (lowest level at day 3); recovery to preoperative levels occurred by day 10. The Freedom SOLO aortic bioprosthesis is an easy-to-implant valve with excellent hemodynamic performance. The thrombocytopenia appears to be a transient laboratory finding.

Cardiac echinococcosis.

OBJECTIVE: Cardiac echinococcosis is an extremely rare disease, seen worldwide. Some clinical characteristics are unknown, and treatment modalities are unclear. METHODS: 41 patients diagnosed with cardiac or pericardial echinococcosis underwent surgery. We evaluated the patients echocardiographically in 8 different categories: cardiac echinococcosis lesions located within the heart, imaging appearance of each lesion, activity of the cysts, mode of cardiac echinococcosis, and number of cardiac lesions per patient. The surgical technique was reevaluated according to the intraoperative echocardiographic findings, especially according to the mode of the lesion. RESULTS: The hydatid cysts were located in the ventricular wall in 34 cases, the right atrium in 2, the noncoronary sinus Valsalva of the aorta in 1, between the aorta and the pulmonary bifurcation in 1, and in the pericardium alone in 4 cases. In 1 case, septal rupture occurred and the patient died. Relapse was seen in 1 patient who was operated on due to multiple ventricular and pericardial cysts; this patient underwent a second operation 6 years and 8 months after the initial surgery. CONCLUSION: Recent echocardiographic developments and application of intraoperative echocardiography enables a detailed classification for extirpation, and allows successful treatment.

Aortic coarctation in the presence of capillary hemangioma.

We report posterior mediastinal hemangioma in a 14-year-old girl patient with an extensive hemangioma encompassing the thoracic aorta, associated with complex coarctation. The masses were identified by contrast-enhanced computed tomography. An extra-anatomical bypass was made by grafting from the ascending to the distal descending aorta. Histological evaluation of the surgical specimens established the final diagnosis. Presence of mediastinal hemangiomas should be regarded as an important differential diagnosis of coarctation of aorta, although these are very rare tumors.

Inhaled pentamidine for Pneumocystis jiroveci prophylaxis in a heart transplant recipient with allergy for trimethoprim sulfamethoxazole.

Pneumocystis jiroveci is an important cause of mortality and morbidity among heart transplant recipients. This raises the question of prophylactic treatment for this infection. Trimethoprimsulfamethoxazole is commonly used in P. jiroveci pneumonia prophylaxis with mild to severe adverse effects. We present the use of inhaled pentamidine as P. jiroveci prophylaxis in a patient with an allergy to trimethoprim sulfamethoxazole.