Stefan K. Schopf

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A unilateral gasless single-surgeon videoendoscopic thyroidectomy procedure using a dorsal cephalic approach from the scalp with the option for a bilateral approach was developed with human cadavers and a porcine model for access training. The final preclinical trials and the first three clinical cases are described in detail. Preclinical evaluation and(More)
Postoperative rebleeding after thyroid surgery is a rare but a serious complication. The aim of this study was to ascertain the extent to which postoperative pressure could be used as detector for rebleeding after thyroid surgery. Thirty-two patients with thyroidectomy or hemithyroidectomy were considered prospectively. In the course of surgery, a pressure(More)
The aim of this prospective, randomized, single-blinded clinical trial was to compare the incidence of chronic pain after laparoscopic transabdominal preperitoneal hernia repair (TAPP) using a 35-g/m2 titanized polypropylene mesh and a 16-g/m2 titanized polypropylene mesh. The reported incidence of chronic pain in patients who underwent laparoscopic hernia(More)
It was with great interest that we read the report by Walvecar et al. [1] on video-assisted gasless thyroidectomy. The article describes a technique tested in human cadavers. Operating from a skin incision in the head behind the ear, preparation took place in a craniocaudal direction, first using conventional instruments, then retractors and an endoscope(More)
It has been proven in experimental and clinical studies that combined perioperative systemic antibiotic prophylaxis and prolonged nonresorbable topical antibiotics directed against common intestinal Gram-negative and Gram-positive pathogens in a mechanically cleaned bowel are effective in preventing intestinal anastomotic leak (AL). For 60 years, evidence(More)
INTRODUCTION Synthetic mesh has been used traditionally to repair abdominal wall defects, but its use is limited in the case of bacterial contamination. New biological materials are now being used successfully for delayed primary closure of contaminated abdominal wall defects. The costs of biological materials may prevent surgeons from using them. We(More)
Es ist experimentell und klinisch erwiesen, dass eine präoperativ begonnene und in die erste postoperative Phase der Wundheilung hinein fortgesetzte lokale antimikrobielle Prophylaxe mit nichtresorbierbaren Antibiotika in der Prävention der Anastomoseninsuffizienz (AI) wirksam ist. Diese Antibiotika sollten gegen intestinale gramnegative und grampositive(More)
Background: Postoperative hemorrhage remains an uncommon but potentially life-threatening complication of thyroid surgery. The aim of this case-controlled study was to compare the effectiveness of PerClot® hemostatic agent with hemostasis by conventional technique (HCT) in thyroid surgery. Methods: The thyroid resection was performed from November 2009 to(More)
Die Leistenbruchoperation gehört zu den häufigsten Operationen in der Viszeralchirurgie. Nicht immer bleibt sie folgenlos: Ein junger Mann hatte zwei Wochen nach seiner zweiten Leistenbruch- OP heftige Schmerzen bei der Ejakulation, die bis zu 15 Sekunden andauerten. Der Zusammenhang mit dem vorangegangenen Eingriff lag nahe, aber zunächst mussten die Ärzte(More)
Das zunächst als Appendizitis eingeschätzte Beschwerdebild eines 50-jährigen Patienten entpuppt sich als vital gefährdende Ruptur eines Nierenarterienaneurysmas. Nach akuter Verschlechterung des Allgemeinzustandes musste nach der klinischen Untersuchung und laborchemischer sowie bildgebender Diagnostik eine notfallmäßige Resektion des Aneurysmas(More)