RESUMEN
Tricuspid annulus has an asymmetric three-dimensional structure with the posteroseptalportion lowest toward the apex from the right atrium and the anteroseptal portion the highest. The tricuspid annulus of a patient with situs inversus has a mirror image of a patient with situs solitus, and the posteroseptal and the anteroseptal portion remains the lowest and the highest toward the apex, respectively, as the situs solitus. Therefore, we assumed that the posteroseptal portion would become higher and the anteroseptal portion would become lower using a conventional three-dimensional rigid ring turned over for tricuspid regurgitation in the situs inversus, and the coaptation of the three leaflets would be poor. In this case, we performed tricuspid annuloplasty using a tricuspid flexible band, mitral valve plasty, left atrial plication, left atrial appendage closure for a situs inversus dextrocardia patient with tricuspid regurgitation, mitral regurgitation, and chronic atrial fibrillation.
RESUMEN
A 65-year-old woman who had been diagnosed with a thoracic aneurysm was admitted to our hospital because of loss of consciousness. Brain CT revealed that the left corticomedullary junction is obscured. Contrast-enhanced CT demonstrated an acute type A aortic dissection with right internal carotid artery occlusion, left internal carotid artery stenosis, and severe pectus excavatum. Although the consciousness level at the time of admission was JCS200, it gradually improved and she regained spontaneous movement of the right side of her body. Repair of the acute type A dissection was indicated because her neurological deficit had improved. The surgery was performed via an L-shaped approach consisting of a median sternotomy and a left 5th intercostal thoracotomy with moderate hypothermic circulatory arrest and selective cerebral perfusion. An entry was found in the aortic arch between the origins of the brachiocephalic artery and the left common carotid artery, and a partial arch replacement was performed using a four-branched artificial graft. Although the right hemiparesis remained, she recovered well and was transferred to a rehabilitation hospital at 45 days postoperatively. The L-incision approach obtained a good surgical field in a patient with a type A dissection and severe pectus excavatum.
RESUMEN
We report a 41-year-old man who presented with a ruptured dissecting aneurysm of the descending aorta. He had undergone aortic root replacement for an acute aortic dissection (Stanford type A) ; 8 months later, he had undergone total arch replacement with insertion of a frozen elephant trunk (FET) due to enlargement of the chronic dissecting aneurysm of the arch. FET-induced new entry and incomplete thrombosis occurred postoperatively. Three months after FET insertion, he developed an aortic rupture that required emergency replacement of the descending aorta. The patient tolerated the procedure well and was discharged 16 days after the operation.
RESUMEN
A-75-year-old man had refractory late cardiac tamponade after an off-pump coronary artery bypass grafting. He was initially treated by pericardiocentesis with oral nonsteroidal anti-inflammatory drugs, but the treatment failed. Pericardial fenestration was conducted twice for refractory pericardial effusion during his hospitalization. He presented again with recurrence of cardiac tamponade 2 months after the last pericardial fenestration. Therefore, a pleuroperitoneal shunt system was implanted. He recovered well and was discharged without reaccumulation of pericardial effusion.
RESUMEN
A 76-year-old man received implantation of sirolimus-eluting stent for total occlusion of the left circumflex artery causing an acute myocardial infarction of posterolateral wall on May 21st, 2005. Off-pump coronary artery bypass grafting was performed on June 9th for a residual 90% stenosis on the proximal segment of his left anterior descending artery. Ticlopidine and aspirin were discontinued 7 days and 2 days before the operation, respectively. Continuous intravenous drip of heparin had been given for 5 days until just prior to the operation. Though the left internal thoracic artery was successfully grafted onto the left anterior descending artery, he developed an acute myocardial infarction after the operation. An emergency angiography, performed on the 1st postoperative day showed thrombotic occlusion of the sirolimus-eluting stent in the circumflex artery and patent internal thoracic artery to the left anterior descending artery. Percutaneous catheter intervention restored the stent patency. Antiplatelet therapy including ticlopidine or clopidogrel is mandatory to prevent subacute thrombosis in drug-eluting stent. Hemorrhagic complication or major surgery may hinder continuing antiplatelet regimens and trigger acute thrombosis. Alternative antiplatelet and/or anticoagulant therapy is essential to prevent acute stent occlusion in such clinical settings.
RESUMEN
Primary cardiac malignant lymphoma (PCL), which is defined as an extra-nodal malignant lymphoma involving only the heart and/or pericardium, is extremely rare. Its prognosis is reported to be very poor because the PCL grows rapidly and frequently causes fatal heart failure or arrhythmias. We report a 65-year-old woman with PCL accompanied with superior vena cava (SVC) syndrome 6 weeks following a pacemaker implantation for complete atrio-ventricular block. She underwent a partial resection of the tumor to release the SVC syndrome and subsequent systemic chemotherapy. This combined therapy successfully induced complete remission, and improvement of the atrio-ventricular conduction disturbance was also observed.
RESUMEN
Left ventricular noncompaction (LVNC) is believed to represent an arrest in the normal process of myocardial compaction, resulting in persistence of both hyper-trabeculation and intratrabecular recess within the left ventricle. High mortality is the important clinical feature of this disease. LVNC in adult cases has been rarely, but occasionally, reported, however, LVNC with insufficiency of both the aortic and mitral valves has not been reported to our knowledge. Herein, we describe a 62-year-old man with LVNC and the severe insufficiency of the aortic and mitral valves, who was successfully operated upon with aortic and mitral valve replacement using mechanical valves. Although the postoperative course was uneventful, careful attention is mandatory for the possible left ventricular dysfunction due to LVNC.
RESUMEN
We encountered 15 cases of surgical site infection (SSI) by Methicillin-resistant <i>Staphylococcus aureus</i> (MRSA) among 153 patients who underwent a cardiovascular operation in 2000. SSIs consisted of 5 mediastinal infections, 9 surface wound infections and 1 artificial graft infection after an abdominal aortic surgery. All infected cases had been operated on between June and December 2000. Eighty-three cases, which underwent cardiovascular operations during this period, were divided into SSI or no-SSI groups and their clinical data were analyzed. The data included age, gender, preoperative diabetes, urgency, preoperative usage of a device like Swan-Ganz catheter or IABP, preoperative albumin level, preoperative physical state by ASA score, National Nosocominal Infections Surveillance index, duration of operation, usage of a cardiopulmonary bypass, duration of bypass, type of operation, and number of distal anastomoses in CABG operations. Multivariate analysis showed gender (male), diabetes, and emergency operation as independent risk factors for the incidence of SSI by MRSA. One patient, who suffered a mediastinal infection after CABG, had confirmed as demonstrating the colonization of MRSA in sputum preoperatively. Microbiological screening of medical staff showed 2 of the 6 surgical doctors and 3 of the 25 ward nurses exhibited colonization with MRSA. DNA analysis of MRSA, harvested from 5 infected patients, indicated at least 2 strains of MRSA and 1 of the 2 strains was identical to the MRSA that was detected in a doctor. We applied prophylactic measures with reference to the guideline for prevention of surgical site infection announced by CDC in 1999, which included the following: routine work-up of MRSA-colonization, and treatment of all MRSA colonized patients and those undergoing emergency operations with Mupirocin. Preoperative patients were isolated from MRSA-infected or colonized patients. MRSA-colonized surgical personnel were treated with Mupirocin ointment. Cephazoline was administered shortly before and after the operation as a prophylactic antibiotic. Vancomycin was added to Cephazoline in patients with a history of MRSA-colonization or infection. Through hand washing before and after daily contact with patients was emphasised to all medical staff. SSI surveillance conducted by an infection control team was implemented. After the introduction of the prophylactic measurements, one MRSA-SSI was observed among 113 cases who underwent a cardiovascular operation between January and September 2001.
RESUMEN
We report 2 cases of successful treatment by percutaneous catheter drainage and irrigation for methycillin-resistant <i>Staphylococcus aureus</i> (MRSA) prosthetic graft infection after abdominal aortic aneurysm (AAA) repair. Case 1 was a 71-year-old man in whom MRSA graft infection was diagnosed on the basis of high fever and CT-guided taps of the perigraft fluid 11 days after AAA repair, and a percutaneous catheter was inserted into the perigraft space by the CT-guided method. Case 2 was a 77-year-old man in whom MRSA graft infection was diagnosed because of high fever and purulent discharge from the wound of retroperitoneal drainage 5 days after AAA repair. A percutaneous catheter was placed into the retroperitoneal space via an extraperitoneal route. In both cases, intermittent irrigation by 0.5% Povidone-iodine solution and saline was performed as well as systemic and local antibiotic administration. The graft infection was well controlled and both patients were discharged after 4 months. Percutaneous catheter drainage and irrigation can be one of the choices for critically ill patients with graft infection after AAA repair.
RESUMEN
We reviewed twenty patients with mechanical prosthetic heart valves who underwent noncardiac operations which were performed in the presence of continual anticoagulant therapy. Prosthetic valves used were the SJM valve in nineteen patients and the Björk-Shiley valve in one. Twenty dental extractions in ten patients were performed with no reduction of warfarin, or the mean thrombotest value of 16%. Seven nonlaparotomy operations (polypectomy of the vocal cord in one patient, total hip joint replacement in one, insertion of a CAPD tube in one, pacemaker implantation in one, cataract operation in two and repair of tibial fracture in one) and three laparotomy operations (partial gastrectomy in two and hysterectomy in one) were performed under the thrombotest value of around 40% with partial reduction of warfarin. There was no difficulty in hemostasis during these operations. The only hemorrhagic complication in this series was bleeding from the abdominal wound in one patient two days after the gastrectomy when subcutaneous injections of heparin prolonged the ACT over 200sec. There were no thromboembolic complications. We conclude that dental extractions in patients with prosthetic heart valves can be safely performed with no reduction of warfarin and that the coagulability of thrombotest value of 40% is sufficient for hemostasis even in laparotomy operations.