Off-pump implantation of left ventricular assist device via minimally invasive left thoracotomy: Our single-center experience.

Background: The aim of this study was to compare our experience of left ventricular assist device implantation via minimally invasive left thoracotomy with off-pump versus on-pump technique. Methods: Between June 2013 and April 2020, nine patients (8 males, 1 female; mean age: 47±11.9 years; range, 30 to 61 years) who underwent off-pump left ventricular assist device implantation and nine patients (8 males, 1 female; mean age: 47±11.4 years; range, 29 to 60 years) who underwent on-pump minimally invasive left thoracotomy were retrospectively analyzed. Postoperative outcomes and mid-term results of both groups were evaluated. Results: Outflow graft was anastomosed to the ascending aorta with J-sternotomy in all patients. The median duration of intubation and intensive care unit stay were one (IQR: 1.5) day and eight (IQR: 6.5) days in the off-pump group, respectively and one (IQR: 0) day and seven (IQR: 7) days in the on-pump group, respectively. Intra-aortic balloon pump was needed during the weaning of cardiopulmonary bypass in one (11%) of the patients in both groups. Postoperative right ventricular failure was observed in two (22%) patients in the offpump group who were treated medically and recovered. There was no need for revision due to bleeding or postoperative extracorporeal membrane oxygenator implantation in either group. In the off-pump group, three patients underwent heart transplantation after median 854 (IQR: 960) days. Three patients died one month, two and four years after implantation. Three patients were still alive with left ventricular assist device and were being uneventfully followed for 365, 400, and 700 days after implantation. Conclusion: Off-pump technique is safe and feasible option for implantation of left ventricular assist device via minimally invasive left thoracotomy.

Does minimally invasive approach reduce risk of infection after ventricular assist device implantation?

BACKGROUND: We analyzed patients with left ventricular assist device (LVAD) related and specific infection, and aimed to determine whether surgical technique implantation affect the frequency of infection. METHODS: We retrospectively analyzed the data of 99 patients who received LVAD at our department between June 2013 and June 2019. Patients were divided into two groups according to the surgical technique. Group A (n = 58) was conventional sternotomy (CS) and group B (n = 41) was on-pump minimally invasive left thoracotomy (MILT). Demographics, preoperative risk factors, LVAD infections, surgical incision site, driveline site, and outcomes were compared between these two groups. RESULTS: Mean follow up time was 589 ± 480 (31-2171) days. Infection was detected in 34% (41/99) of LVAD patients. Admission to emergency department and intensive care unit (ICU) in last 6 months were significantly higher in MILT group. There was no difference between the two groups in terms of driveline exit site infection (CS: 28%, MILT: 27%) (p > 0.05). Seven (17%) patients had infection in the thoracotomy incision site area in the MILT group. The rate of ICU hospitalization in the last 6 months was seen as the only independent risk factor increasing the frequency of infection (R = 0.30; p = 0.016). Survival analysis at 60 days, 1 year and 2 years showed no difference between the two groups (p = 0.09). CONCLUSIONS: Despite advances in pump technology and surgical technique, infection is still an important cause of mortality and morbidity.

Post-radiotherapy bilateral external auditory canal cholesteatoma.

In this article, we report a 55-year-old female case was treated with radiotherapy due to nasopharynx carcinoma and diagnosed with bilateral external auditory canal cholesteatoma four years after radiotherapy. Persistent otorrhea was present in the patient and the diagnosis was established through noticing a soft tissue mass eroding external auditory canal anterior wall in temporal bone tomography as well as the otoscopic findings. Canaloplasty and cholesteatoma excision were administered as the surgical treatment.