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  1. Article ; Online: 37-jähriger Patient mit schmerzhaften konjunktivalen Effloreszenzen.

    Maierhofer, Niklas A / Friedrich, Julia / Lanzl, Ines

    Die Ophthalmologie

    2022  Volume 119, Issue 12, Page(s) 1313–1316

    Title translation 37-year-old male patient with painful conjunctival efflorescences.
    MeSH term(s) Humans ; Male ; Adult ; Exanthema ; Conjunctiva/diagnostic imaging ; Pain/diagnosis
    Language German
    Publishing date 2022-11-22
    Publishing country Germany
    Document type Case Reports ; Journal Article
    ISSN 2731-7218
    ISSN (online) 2731-7218
    DOI 10.1007/s00347-022-01763-8
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Comparison of Robot-Assisted and Manual Cannula Insertion in Simulated Big-Bubble Deep Anterior Lamellar Keratoplasty.

    Zhao, Yinzheng / Jablonka, Anne-Marie / Maierhofer, Niklas A / Roodaki, Hessam / Eslami, Abouzar / Maier, Mathias / Nasseri, Mohammad Ali / Zapp, Daniel

    Micromachines

    2023  Volume 14, Issue 6

    Abstract: This study aimed to compare the efficacy of robot-assisted and manual cannula insertion in simulated big-bubble deep anterior lamellar keratoplasty (DALK). Novice surgeons with no prior experience in performing DALK were trained to perform the procedure ... ...

    Abstract This study aimed to compare the efficacy of robot-assisted and manual cannula insertion in simulated big-bubble deep anterior lamellar keratoplasty (DALK). Novice surgeons with no prior experience in performing DALK were trained to perform the procedure using manual or robot-assisted techniques. The results showed that both methods could generate an airtight tunnel in the porcine cornea, and result in successful generation of a deep stromal demarcation plane representing sufficient depth reached for big-bubble generation in most cases. However, the combination of intraoperative OCT and robotic assistance received a significant increase in the depth of achieved detachment in non-perforated cases, comprising a mean of 89% as opposed to 85% of the cornea in manual trials. This research suggests that robot-assisted DALK may offer certain advantages over manual techniques, particularly when used in conjunction with intraoperative OCT.
    Language English
    Publishing date 2023-06-16
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2620864-7
    ISSN 2072-666X
    ISSN 2072-666X
    DOI 10.3390/mi14061261
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: iOCT-guided simulated subretinal injections: a comparison between manual and robot-assisted techniques in an ex-vivo porcine model.

    Maierhofer, Niklas A / Jablonka, Anne-Marie / Roodaki, Hessam / Nasseri, M Ali / Eslami, Abouzar / Klaas, Julian / Lohmann, Chris P / Maier, Mathias / Zapp, Daniel

    Journal of robotic surgery

    2023  Volume 17, Issue 6, Page(s) 2735–2742

    Abstract: The purpose of this study is to compare robot-assisted and manual subretinal injections in terms of successful subretinal blistering, reflux incidences and damage of the retinal pigment epithelium (RPE). Subretinal injection was simulated on 84 ex-vivo ... ...

    Abstract The purpose of this study is to compare robot-assisted and manual subretinal injections in terms of successful subretinal blistering, reflux incidences and damage of the retinal pigment epithelium (RPE). Subretinal injection was simulated on 84 ex-vivo porcine eyes with half of the interventions being carried out manually and the other half by controlling a custom-built robot in a master-slave fashion. After pars plana vitrectomy (PPV), the retinal target spot was determined under a LUMERA 700 microscope with microscope-integrated intraoperative optical coherence tomography (iOCT) RESCAN 700 (Carl Zeiss Meditec, Germany). For injection, a 1 ml syringe filled with perfluorocarbon liquid (PFCL) was tipped with a 40-gauge metal cannula (Incyto Co., Ltd., South Korea). In one set of trials, the needle was attached to the robot's end joint and maneuvered robotically to the retinal target site. In another set of trials, approaching the retina was performed manually. Intraretinal cannula-tip depth was monitored continuously via iOCT. At sufficient depth, PFCL was injected into the subretinal space. iOCT images and fundus video recordings were used to evaluate the surgical outcome. Robotic injections showed more often successful subretinal blistering (73.7% vs. 61.8%, p > 0.05) and a significantly lower incidence of reflux (23.7% vs. 58.8%, p < 0.01). Although larger tip depths were achieved in successful manual trials, RPE penetration occurred in 10.5% of robotic but in 26.5% of manual cases (p > 0.05). In conclusion, significantly less reflux incidences were achieved with the use of a robot. Furthermore, RPE penetrations occurred less and successful blistering more frequently when performing robotic surgery.
    MeSH term(s) Humans ; Animals ; Swine ; Robotics ; Tomography, Optical Coherence/methods ; Robotic Surgical Procedures/methods ; Retina ; Vitrectomy/methods
    Language English
    Publishing date 2023-09-05
    Publishing country England
    Document type Journal Article
    ZDB-ID 2268283-1
    ISSN 1863-2491 ; 1863-2483
    ISSN (online) 1863-2491
    ISSN 1863-2483
    DOI 10.1007/s11701-023-01699-4
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