A középarc lágy részeinek nasolabialis függesztése: új, minimálinvazív és reverzibilis módszer az arc statikus szimmetrizálására végleges arcidegbénulásban = Nasolabial suspension of the malar fat pad: a new, minimally invasive and reversible technique for facial symmetrization in permanent facial paralysis

Absztrakt: Bevezetés: A különböző etiológiájú, végleges perifériás arcidegbénulás következtében kialakuló középarc-aszimmetria – mely a betegek számára jelentős pszichés megterhelést jelent – rekonstrukciójára számos sebészi lehetőség kínálkozik. Célkitűzés: Olyan minimálinvazív sebészi módszer kidolgozása volt a célunk, mellyel a nasolabialis redő – mint az arc szimmetriájának egyik legmeghatározóbb eleme – helyreállítása mellett a középarc lágy részeinek megfelelő statikus felfüggesztése érhető el kisebb műtéti megterheléssel, rövidebb műtéti idővel és lényegesen kevesebb szövődménnyel, valamint gyorsabb felépüléssel. Módszer: Technikánk alapja egy neo-nasolabialis redő képzése, melynek subcutan fonalpárokkal történő rögzítése a temporalis fasciához nem csupán az arc szimmetriáját állítja helyre, de a középarc lágy részeit is megemeli. Eredmények: Klinikánkon 2014 és 2017 között egynapos sebészet keretében 6 betegnél végeztük el a középarc lágy részeinek nasolabialis függesztését, érdemi szövődmény nélkül, helyi érzéstelenítésben. Következtetés: A műtéti feltárás minimális, így a posztoperatív szak jelentősen lerövidül, torzító hegekkel látható területen nem kell számolni, a sebgyógyulási zavar lehetősége minimális. Amennyiben szükséges, a felfüggesztés mértéke revideálható, és mivel reverzibilis, a függesztőfonalak bármikor eltávolíthatók, ily módon semmilyen egyéb arcideg-rekonstrukciós lehetőséget nem zárnak ki. Módszerünk képes az arc nyugalmi helyzetét tartósan és teljes mértékben szimmetrizálni, ami betegeink visszajelzése alapján a legfontosabb tényező számukra. Orv Hetil. 2019; 160(22): 869–872. | Abstract: Introduction: For the treatment of asymmetry of the midface due to permanent peripheral facial nerve palsy of different etiologies – which means a great psychical burden for the patients – several surgical solutions have been described. Aim: Our goal was to elaborate a minimally invasive surgical technique, that, on one hand, restores an adequate nasolabial fold, which is the most determinative keystone of facial symmetry. On the other hand, our technique can give an appropriate lift for the malar fat pad with shorter operative time and burden, with much lower complication rate and shorter recovery period compared to the classic static sling suspension techniques. Method: Out method is based on the formation of a neo-nasolabial fold, which is then suspended to the temporal fascia by permanent threads thus restoring facial symmetry and giving a lifting effect on the midfacial soft tissues as well. Results: Between 2014 and 2017, six patients had been operated with this nasolabial lifting technique of the malar fat pad without any major complications under local anesthesia on an outpatient basis at our Department. Conclusions: As our surgical exploration is minimal, the postoperative period is shorter, no visible scars remain on the face and the complication rate is negligible. If necessary, suspension could easily be adjusted, and as the technique is reversible, no other possible facial reconstruction methods are excluded. Our method can symmetrize the face in resting position completely on the long term, which is the most important issue for our patients according to their feedback. Orv Hetil. 2019; 160(22): 869–872

Fiatalkori hallásrehabilitáció Baha® Attract implantátumrendszerrel | Pediatric hearing rehabilitation with the Baha ® Attract implant system

Absztrakt: Bevezetés: A Baha® Attract egy új, implantálható transcutan csontvezetéses hallásjavító rendszer, amely fiatalkorban is előnyösebb lehet a klasszikus percutan eszközökkel szemben. Célkitűzés: Az eszköz alkalmazási lehetőségeinek bemutatása a fiatalkori hallásrehabilitációs műtéteknél. Módszer: Klinikánkon ez idáig nyolc esetben végeztünk fiatalkorban implantációt (átlag 13,2 ± 3,2 év) az általunk módosított „posterosuperior” feltárásos technikával, 5 mm-es implantátummal. Az életkori sajátságok indokolták, hogy kiegészítő tanulmányként 72 fő, 1–8 éves gyermek koponya-CT-felvételét elemezve megmérjük a koponyacsont vastagságát az implantátum beültetésének ideális lokalizációjában. Eredmények: Az implantációk átlag 30 perces műtéti idővel történtek. Intra- és posztoperatív szövődményt nem észleltünk. A beszédprocesszorokat a negyedik héten illesztettük. Audiológiai eredményekben 51,58 ± 11,22 SD dBHL hallásteljesítmény, valamint 43,3 ± 16,02 SD dB beszédhallásküszöb-javulást értünk el. A koponyacsont-vastagság átlagosan 3,39 ± 1,05 SDmm-nek adódott. Következtetés: A Baha® Attract új lehetőség a fiatalkori hallásrehabilitációban. Az implantációt megelőzően javasolt a koponyáról CT-vizsgálatot végezni, amellyel megállapítható a csont vastagsága és megtervezhető az implantátum beültetésének optimális helye. Orv. Hetil., 2017, 158(8), 304–310. | Abstract: Introduction: Baha® Attract is a new transcutaneous bone-conduction hearing aid, which is more preferable in childhood than the conventional percutaneous systems. Aim: Our aim was to demonstrate the possibilities of application in childhood. Method: Eight children have undergone surgeries (mean age of 13.2 ± 3.2 years; “posterosuperior” incision technique, 5 mm implants). The thickness of the skull bone was determined in 72 children (1-8 years old) at the recommended implant site, based on CT scans. Results: The average duration of surgeries was 30 minutes. There were no intra- and postoperative complications observed. Sound processors were fitted at the postoperative 4th week. Hearing measurements proved 51.58±11.22SD dBHL gain in warble tone thresholds, and 43.3 ± 16.02 SD dB in speech discrimination thresholds. The skull bone thickness was measured as 3.39 ± 1.05 SD mm. Conclusion: The Baha Attract system is a new tool for hearing rehabilitation in pediatric population. Preoperative CT provides valuable knowledge about skull bone thickness. Orv. Hetil., 2017, 158(8), 304–310

Isolated Recovery of Adductor Muscle Function Following Bilateral Recurrent Laryngeal Nerve Injuries

The aim of this study was to analyze the phoniatric and respiratory outcomes of a subset of bilateral vocal cord paralysis (BVCP) patients who were all treated with unilateral endoscopic arytenoid abduction lateropexy (EAAL). EAAL is a nondestructive, minimally invasive glottis widening operation, which does not damage either the surgically treated or the contralateral vocal cord. Therefore, it does not impair the regeneration potential of the recurrent laryngeal nerve.Case series.Ten out of 21 BVCP patients who were treated with EAAL showed signs of isolated adduction recovery at 1 year and were chosen for this study. Functional results (objective and subjective voice analysis, spirometric measurement) and vocal cord movements were assessed preoperatively, 1 week and 1 year after EAAL. Laryngeal electromyography was performed on the 12th postoperative month.The volitional adductor movement seen on laryngoscopy was corroborated by laryngeal electromyography evaluation. Peak inspiratory flow increased significantly after EAAL. Quality-of-life scores also showed high patient satisfaction. Shimmer showed consistent improvement along with harmonic-to-noise ratio and average maximal phonation time in parallel with the improving vocal cord movement. Complex voice analysis and subjective self-evaluation tests also demonstrated significant improvement.EAAL, as a minimally invasive, nondestructive airway widening technique, does not interfere with the potential regeneration process that can still occur after BVCP, allowing for laryngeal functional recovery. It is a safe and effective treatment for BVCP that allows a simple solution with good phonatory, swallowing, and respiratory benefits by unilateral passive and reversible vocal cord lateralization.4. Laryngoscope, 2018

Imaging reveals the focal area of spreading depolarizations and a variety of hemodynamic responses in a rat microembolic stroke model

Spreading depolarizations (SDs) occur in stroke, but the spatial association between SDs and the corresponding hemodynamic changes is incompletely understood. We applied multimodal imaging to visualize the focal area of selected SDs, and hemodynamic responses with SDs propagating over the ischemic cortex. The intracarotid infusion of polyethylene microspheres (d=45 to 53 μm) produced multifocal ischemia in anesthetized rats (n=7). Synchronous image sequences captured through a cranial window above the frontoparietal cortex revealed: Changes in membrane potential (voltage-sensitive (VS) dye method); cerebral blood flow (CBF; laser speckle contrast (LSC) imaging); and hemoglobin (Hb) deoxygenation (red intrinsic optical signal (IOS) at 620 to 640 nm). A total of 31 SD events were identified. The foci of five SDs were seen in the cranial window, originating where CBF was the lowest (56.9±9%), but without evident signs of infarcts. The hyperemic CBF responses to propagating SDs were coupled with three types of Hb saturation kinetics. More accentuated Hb desaturation was related to a larger decrease in CBF shortly after ischemia induction. Microsphere-induced embolization triggers SDs in the rat brain, relevant for small embolic infarcts in patients. The SD occurrence during the early phase of ischemia is not tightly associated with immediate infarct evolution. Various kinetics of Hb saturation may determine the metabolic consequences of individual SDs

Laser-Doppler microvascular measurements in the peri-implant areas of different osseointegrated bone conductor implant systems

The objective of this study was to evaluate the impact of hydroxyapatite coating of newly designed osseointegrated fixtures' abutments on the postoperative complication rates. The integrity of peri-implant microcirculation was used as a marker to compare tissue viability after different surgical techniques. Laser-Doppler Flowmetry (LDF) measures alone, and coupled with heat provocation tests were applied to test the different microcircular patterns. Measures for 17 consecutively implanted patients (8 women, 9 men, ages ranged from 18 to 77 years) were recruited; seven with soft tissue reduction (STR); and 10 with soft tissue preservation (STP).Thirteen non-operated retro-auricular areas were examined as naive controls. In isotherm conditions the baseline blood flow remained stable in all groups. The naive control patients demonstrated significant changes of blood flux in the intact skin. The non-implanted yet previously operated contralateral sides of the patients demonstrated marginally lower (p = 0.09) blood flux index. The STR sides however, showed significantly lower (average 217 %) provoked blood flux compared to controls (p < 0.001). At the STP sides a maladaptation could be observed (average 316 %) compared to the contralateral sides (p = 0.53). STP sides demonstrated a significantly better blood flow improvement compared to the STR sides (p = 0.02). These results suggest a favorable postoperative condition of vascular microcirculation after STP, than after STR surgery. The possibly faster wound healing and lower potential complication rate may widen the inclusion criteria and maybe beneficial for the patient compliance with a better quality-of-life