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Inguinal hernia repair is one of the most frequently performed operations in the pediatric population and laparoscopic hernia repair is currently increasingly performed in Dutch academic and non-academic hospitals. The laparoscopic PIRS-technique is invented by Prof. Dr. D. Patkowski and is an extra-corporeal technique that uses one trocar for the camera and uses an subcutaneous knotted suture. Compared to the open technique, the PIRS-technique offers the possibility for contralateral inspection without making an extra incision and, in case of a contralateral patent processus vaginalis (CPPV), offers the possibility for the simultaneous repair of the CPPV. This prevents the development of a metachronous contralateral inguinal hernia (MCIH), one of the most frequent reason for re-operation after open inguinal hernia repair. This will result in less operations, less exposure to general anesthesia, less hospital admissions and less visits to the general practitioner and emergency department.

Inguinal hernia repair is one of the most frequently performed operations in the pediatric population and laparoscopic hernia repair is currently increasingly performed in Dutch academic and non-academic hospitals. The laparoscopic PIRS-technique is invented by Prof. Dr. D. Patkowski and is an extra-corporeal technique that uses one trocar for the camera and uses an subcutaneous knotted suture. Compared to the open technique, the PIRS-technique offers the possibility for contralateral inspection without making an extra incision and, in case of a contralateral patent processus vaginalis (CPPV), offers the possibility for the simultaneous repair of the CPPV. This prevents the development of a metachronous contralateral inguinal hernia (MCIH), one of the most frequent reason for re-operation after open inguinal hernia repair. This will result in less operations, less exposure to general anesthesia, less hospital admissions and less visits to the general practitioner and emergency department.

In the 17th and 18th centuries the entrance to the guild chamber of the Amsterdam Guild of Surgeons was located in the right corner-tower of the Waag on the Nieuwmarkt in Amsterdam. The surgeons entered their guild chamber through this door for guild meetings or to take surgical exams. The entrance also gave access to the anatomy theatre, the 'Theatrum Anatomicum', where anatomical dissections - anatomy lessons - took place. There was a bust of Hippocrates in the facade above the door, and the inscription 'Theatrum Anatomicum'. The series of 'anatomy lessons' reminds us of the famous paintings that were commissioned by the Surgeons' Guild. At the beginning of the 17th century, a skeleton was painted on the door in the gateway, and this marked the entrance to the Surgeons' Guild for almost 200 years. We examined, from a historical perspective, how the gateway to the guild chamber of the Amsterdam Guild of Surgeons was transformed over time.

In the 17th and 18th centuries the entrance to the guild chamber of the Amsterdam Guild of Surgeons was located in the right corner-tower of the Waag on the Nieuwmarkt in Amsterdam. The surgeons entered their guild chamber through this door for guild meetings or to take surgical exams. The entrance also gave access to the anatomy theatre, the 'Theatrum Anatomicum', where anatomical dissections - anatomy lessons - took place. There was a bust of Hippocrates in the facade above the door, and the inscription 'Theatrum Anatomicum'. The series of 'anatomy lessons' reminds us of the famous paintings that were commissioned by the Surgeons' Guild. At the beginning of the 17th century, a skeleton was painted on the door in the gateway, and this marked the entrance to the Surgeons' Guild for almost 200 years. We examined, from a historical perspective, how the gateway to the guild chamber of the Amsterdam Guild of Surgeons was transformed over time.

Infantile haemangiomas (IH) are the most commonly occurring benign tumours of infancy, which may lead to considerable morbidity, such as amblyopia, ulceration and airway obstruction, depending on localization. Until recently, treatment was difficult: high-dose systemic glucocorticoids had limited effect and serious side effects. In 2008, the effectiveness of the beta-blocker propranolol for infantile haemangiomas was discovered; by now there is extensive worldwide experience. Data from the literature and from our own patient cohort (n = 132) confirm the remarkable efficacy of propranolol in complicated IH, without significant adverse effects. Propranolol is most effective in the proliferation phase of IH in children under 6 months of age. Timely referral of patients with potentially function-threatening or life-changing IH to a specialised multidisciplinary centre is therefore essential. Pending controlled studies, propranolol appears to have become the first choice treatment in complicated IH.

Infantile haemangiomas (IH) are the most commonly occurring benign tumours of infancy, which may lead to considerable morbidity, such as amblyopia, ulceration and airway obstruction, depending on localization. Until recently, treatment was difficult: high-dose systemic glucocorticoids had limited effect and serious side effects. In 2008, the effectiveness of the beta-blocker propranolol for infantile haemangiomas was discovered; by now there is extensive worldwide experience. Data from the literature and from our own patient cohort (n = 132) confirm the remarkable efficacy of propranolol in complicated IH, without significant adverse effects. Propranolol is most effective in the proliferation phase of IH in children under 6 months of age. Timely referral of patients with potentially function-threatening or life-changing IH to a specialised multidisciplinary centre is therefore essential. Pending controlled studies, propranolol appears to have become the first choice treatment in complicated IH

The sixties and seventies of the twentieth century saw an upsurge of manifestations of poets writing concrete and -later- visual poetry. This was not a uniquely Dutch or Felmish phenomenon; it occurred throughout the world. These poets published small and even sometimes one-man magazines; their volumes were often privately printed. ..... Zie: Summary