The Impact of a Simplified Hydrostatic Bypass Flow Technique on Error Detection during Surgical Limb Revascularization.

Technical errors have an impact on the results of surgical lower limb revascularization. Use of ultrasound scanning or angiography on the operating table is inconvenient and, in case of angiography, carries a certain risk of radiation and contrast exposure. A simpler method of screening for errors is required. This study assessed the accuracy of a new simple hydrostatic bypass flow technique during surgical limb revascularization. In all, 885 patients were included in the retrospective study. All were treated for Chronic Limb-Threatening Ischemia (CLTI) with a femoropopliteal bypass. Preoperatively, the radiological Vascular Surgery/International Society of Cardiovascular Surgery (SVS/ISCVS) score was used to assess the complexity of the anatomical changes. The surgeon made a subjective runoff assessment for every surgery. In 267 cases, the hydrostatic bypass flow (HBF) technique was used, and, in 66 cases, a digital subtraction angiography (DSA) was used. In each case, a postoperative Doppler ultrasound (DUS) examination was performed following the HBF. Good early results were achieved in 89.46%, and 154 errors (17.4%) were detected (85 were detected on the operating table, including 57 technical errors). Independent efficacy in error detection was proven with a postoperative Doppler examination (Aera Under Curve (AUC) = 0.89; criterion mid-graft peak systolic velocity (PSV) <24 cm/s, p = 0.00001) and hydrostatic bypass flow (AUC = 0.71, criterion HBF < 53 mL/min, p = 0.00001) during surgery. The hydrostatic bypass flow technique is an effective intraoperative screening method in bypass surgery. Algorithmic use of HBF, DSA if needed, and DUS postoperatively improves the outcome. HBF sufficiently reduced the need for on-table angiography.

The results of 394 consecutive cases of knee joint radiation synovectomy (radiosynoviorthesis) using 90Y.

OBJECTIVE: The aim of this study was to assess the treatment results of 90Y radiation synovectomy for chronic exudative synovitis of knee joints. METHODS: The retrospective data consist of 394 consecutive knee radiation synovectomies performed using 6 mCi (222 MBq) of 90Y. The assessment included 3-point custom pain and joint mobility scale, evaluation of joint's circumference, binary joint's temperature evaluation, patellar ballottement test, indications for puncture and its volume in applicable cases. 21 cases had to be forfeited due to missing data regarding follow-up. RESULTS: The final analysis of 373 treatment procedures performed in 253 patients yielded following results-at 6 months after treatment, 80.9% of the patients reported at least partial pain relief (including 33.3% with complete pain relief), which increased to 86.7% at one year. The pain intensity decreased over time, however, the outcomes were worse in older patients. The probability of pain recurrence was 15% at 6 months, and 28% at one year. It was highest in post-traumatic synovitis, and lowest in pigmented villonodular synovitis. The circumference of the treated knee joints decreased over the course of follow-up, however, the decrease was significantly lower in older patients. The fraction of patients with full knee joint mobility increased from 34.6 to 40.6% at 6 months and 49.2% at one year. The percentage of patients that required articular puncture decreased from 62.8% at baseline to about 35.6% at 6 months, and 32.8% at one year. Positive patellar ballottement was found in 68.5% before treatment and remained at about 40-50% during the course of follow-up. The increased temperature of the joint was reported in 51.2% at baseline and decreased to 33% at 6 months and 28.3% at one year. CONCLUSIONS: (1) Radiation synovectomy is a safe and effective method of treatment in patients with exudative synovitis, however, the pain recurrence rate is significantly higher in post-traumatic exudative synovitis compared to pigmented villonodular, undifferentiated, and rheumatoid arthritis. (2) Our results suggest that older patients have worse treatment results with radiation synovectomy compared to younger patients.

Bone marrow harvest in donors with anaemia.

BACKGROUND: Bone marrow harvest (BMH) for haematopoietic stem cell transplantation is a well-established procedure. The guidelines of World Marrow Donor Association provide information on donor selection. However, some of the guidelines regarding donors with anaemia prior to harvest lack in supporting data from clinical studies. With this study, we aimed to provide such data. MATERIAL AND METHODS: In this retrospective, single-centre study, we analysed the interplay between haemoglobin levels and BMH and BMH impact on haemoglobin levels in a cohort of 149 unrelated BM donors, including 13 subjects with mild anaemia. RESULTS: The BMH led to significantly lower decrease in haemoglobin levels in donors with anaemia than in control group (1·79 g/dl vs. 2·56 g/dl, P < 0·0001). The following parameters: BMH volume (ml), BMH volume/donor body weight (ml/kg), total nucleated cells (TNC) in product (×108 ) and TNC/kg recipient body weight in product (×108 /kg) did not differ significantly between those two analysed groups (P > 0·05). Median BM volume harvested from anaemic donors was 16·34 ml/kg; none of them required blood transfusion after BMH. CONCLUSION: Mild anaemia prior to BMH does not significantly impact the collection results. The BMH is safe and feasible in donors with mild anaemia.

The role of neck wrinkles for cosmetic effect during carotid artery endarterectomy.

INTRODUCTION: Minimally invasive procedures in carotid endarterectomy are currently preferred. Smaller skin incisions (transverse or longitudinal) and the mapping of carotid artery bifurcation with Doppler ultrasound are promoted. There is a lack of papers about cosmetic effects and patients' preferences. The aim of this study was to qualify natural skin wrinkles as potential anatomical markers of carotid artery bifurcation and scar camouflage. MATERIAL AND METHODS: 50 patients underwent carotid endarterectomy in 2013-2014 in the Vascular Surgery Department of the Pomeranian Medical University in Szczecin. The positions of wrinkles were compared with the anatomical location of carotid artery bifurcation with the use of Doppler - Duplex Ultrasound. Patients' preferences and cosmetic effect were also assessed. RESULTS: 50% of patients declared the cosmetic effect important. Nevertheless, every patient preferred a transverse incision along a wrinkle line. The wound scar was invisible in 76% of cases 3-6 months after surgery. Wrinkles were close, within 1 centimeter, to carotid artery bifurcation in 80% of cases. It was mainly 4-5 cm from the angle of the mandible. Surgical access along wrinkles located 3, 4, 5, 6, 7 cm from the gonial angle was technically easy in 55%, 77%, 79%, 45%, and 21% of cases, respectively. Using ultrasound before surgery allows the planning of the optimal incision in 98% of cases. CONCLUSIONS: Transverse incision hidden in the wrinkles of the neck gives a good cosmetic effect and allows carotid endarterectomy in every case when carotid artery bifurcation is marked prior to surgery.

[The treatment of the displaced fractures of the radial head with open reduction and internal fixation using Herbert screws]. / Leczenie przemieszczonych zlaman glowy kosci promieniowej otwarta repozycja i zespoleniem srubami Herberta.

The purpose of this retrospective study was to evaluate the results following open reduction and internal fixation of fractures of the radial head with the Herbert screws. 18 patients had been treated from 2001 to 2005, 10 men and 8 females with an average age of 39 years and 6 months (range, twenty to fifty six years). In 7 cases (38%) the fracture were part of a more complex elbow injury pattern; posterior dislocation of the elbow 4, posterior dislocation with rupture of the medial collateral ligament 1, posterior dislocation with concomitant fracture of the coronoid process and medial collateral ligament rupture 3.9 had Mason Type- II and 9 Mason Type III fracture. Stabilization was performed with one to three Herbert screws. Twenty patients were reexamined after a mean time 3 year and six months (range 1 to 5 years). According Mayo Elbow Performance Score the results were excellent in 9 patients, good in 2, and fair in 1 patient.