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H P Berlien

Publications and source records attributed to H P Berlien.

24 records · Page 2Linked to original sources
PubMed1992

Treatment of congenital tracheoesophageal fistula by endoscopic laser coagulation: preliminary report of three cases.

Three newborns with congenital tracheoesophageal fistula were treated by endoscopic laser coagulation. After radiologic and endoscopic diagnosis, laser coagulation of the mucosal layer of the fistula followed using Nd:YAG laser light transferred through an uncovered quartz fiber of 600 microns diameter. The successful and uneventful course in two cases contrasts with the incomplete obliteration in one case caused by inadequate energy application and/or early localized instillation of contrast medium for radiologic control examination. The advantages of this method include elimination of an operative procedure, exclusion of operative complications, and the possibility of repetition in recurrent cases. Care must be taken to prevent esophageal and tracheal damage by use of this method.

Bronchoscopy↗
PubMed1990

Lasers in pediatric surgery.

During the last few years the laser has become a very interesting instrument in pediatric surgery. This is the result of the wide variation in tissue interactions and the possibility of specific applications. The CO2 laser is a highly precise cutting instrument whereas the argon laser has its great advantage in the treatment of superficial vascular anomalies. The most important laser in pediatric surgery is the Nd:YAG laser, on the one hand because its radiation can be transmitted by fibres, on the other because with the relationship between interaction time and power density, and the choice of application, it is possible to change the tissue interaction from precise cutting to specific coagulation and homogeneous coagulation. As a result, indications for lasers in pediatric surgery range from the treatment of superficial haemangiomas to typical endoscopic procedures and the resection of parenchymatous organs and tumours.

Child↗
PubMed1988

[Selection of various types of lasers in the treatment of surface and deep vascular anomalies].

Laser therapy can be used to great advantage in the treatment of haemangiomas in childhood in specially selected cases. We were able to collect experiences in 101 children and to utilise both the coagulation effect for percutaneous induction of regression and the cutting effect in the resection of haemangiomas at the body surface and the thoracic and abdominal cavities. Among the commercially available laser equipment we would prefer the argon laser for intracutaneous lesions (naevi teleangiectatici, spider naevi, plane haemangiomas), whereas for the cavernous or planotuberous or tuberonodous haemangiomas it is better to use the neodym-YAG laser. Patients must be very carefully selected and selection must be restricted to haemangiomas with complications. Treatment via neodym-YAG laser must be complemented by protecting the skin against cold, by compressing the angiomas and by an appropriate after treatment.

Child, Preschool↗
PubMedDate not supplied

Nd:YAG laser procedures in tumor treatment.

Due to the wide variability of tissue interactions and the possibility of specific applications, the neodymium-yttrium-aluminum-garnet (Nd:YAG) laser is the most important surgical laser. With the adequate choice of application mode and relationship between interaction time and power density, it can be used for precise cutting in the contact mode with the bare fiber, with either a wide or small coagulation seam. With a handpiece a precise focal coagulation for preparation and hemostatic purposes is possible, as well as cutting with the focussed noncontact beam where additionally a wide coagulation seam is necessary. Endoscopically guided coagulation, vaporization, and cutting are possible with bare fibers which can be introduced through nearly all endoscopes. With increasing importance, the possibility for wide and homogeneous volume coagulation is used to destroy diseased tissues either by noncontact irradiation or interstitial placement of the fiber. Thus, the field of laser application in tumor therapy ranges from the treatment of superficial tumors to endoscopic tumor ablation, resection of neoplastic tissue in parenchymatous organs, and interstitial thermotherapy with coagulation of deep-seated primary and secondary malignancies. With its different application modes the laser can be used as a surgical instrument or as a central therapeutical method, whereby perfect control of tissue interactions is always possible by using either visual control for superficial and endoscopic procedures or magnetic resonance imaging and color-coded duplex sonography as a control for interstitial procedures. During 12 years of clinical work we have developed several application modes and have proved the Nd:YAG laser to be an effective instrument in tumor therapy.

Air↗