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Biomedical subjects

H Paulmann

Publications and source records attributed to H Paulmann.

At least 19 recordsLinked to original sources
PubMed1998

[Is the implantation of a second intraocular lens prior to the removal of the first implants remaining in the vitreous cavity incorrect medical treatment?].

BACKGROUND: The implantation of an intraocular lens into the capsular bag is a common procedure in modern cataract surgery. In case of a break of the posterior capsule it is possible to implant the intraocular lens by rhexis-, ciliary sulcus- or pars-plana-fixation. The following case is in so far remarkable, as a second intraocular lens has been implanted while a dislocated intraocular lens was still in the vitreous cavity. PATIENT: We report on a 70-year-old patient who underwent cataract surgery. After a break in the posterior capsule the intraocular lens dislocated into the vitreous cavity. A second intraocular lens has been implanted in the ciliary sulcus. 41 days after cataract surgery the dislocated intraocular lens has been removed by pars-plana-vitrectomy without any problems. CONCLUSION: Intraocular lens implantation in the ciliary sulcus is not proved to be a hindrance with regard to the transcleral removal of a posteriorly dislocated intraocular lens, following the principles of intraocular foreign body surgery.

Aged↗
PubMed1991

[Determination of plasma atrial natriuretic peptide in follow-up of hypervolemic hemodilution in patients with retinal circulatory disorders].

We measured plasma levels of atrial natriuretic peptide (ANP) in 20 patients with impaired retinal circulation in order to monitor hypervolemic hemodilution. In 18 control subjects, plasma ANP levels averaged 37.4 +/- 7.3 pg/ml and 30.0 +/- 5.4 pg/ml before and after an i.v. infusion of 250 ml of HAES 6% over 3 hours. In 8 of 20 patients, plasma ANP exceeded the highest value of 87 pg/ml in the controls at the end of the first infusion. In the group B, ANP increased from 103 +/- 21.6 pg/ml to 142 +/- 12 pg/ml before and after the infusion. In the remaining 12 patients (group A), plasma levels of ANP were 41.1 +/- 8.6 and 44.8 +/- 6.3 pg/ml at the start and the end of the first infusion of HAES. All patients received 500 ml of HAES daily for 8 days. In group B, hemoglobin was significantly lower on day 8 (11.7 +/- 0.48 versus 13.2 +/- 0.38 mg/100 ml) compared to group A (p less than 0.005). Similarly, hematocrit and serum protein was reduced to a greater extent in group B compared to group A indicating intravascular volume expansion. Measuring plasma ANP-levels might be of value to identify patients with reduced tolerance to hemodilution therapy.

Aged↗
PubMed1991

[Results of surgical therapy of advanced stages of retinopathy of prematurity].

The results of buckling procedures performed in 15 consecutive cases of severe retinopathy of prematurity between 1983 and 1990 are presented and discussed. The preoperative status was stage IV in 6.7% und stage V with an open funnel in 93.3% of these cases. Anatomical success was found in 53.3% in the early postoperative phase, but this had fallen to 33.3% before the long-term follow-up examination. Functional success at least with perception of large forms was recorded in 20%. The surgical technique and postoperative complications are described. The results of closed vitrectomy performed in 104 consecutive cases of severe retinopathy of prematurity between 1983 and 1990 are then dealt with. The preoperative status was stage IV in 13.5%, stage V with an open funnel in 18.3% and stage V with a closed funnel in 68.2%. Anatomical success was achieved in 29.8% in the early postoperative phase, but the proportion fell to 13.5% during a long-term follow-up study. Functional success at least with perception of hand movements was recorded in 10.6%. The surgical technique and postoperative complications are described.

Child, Preschool↗
PubMed1986

Histopathological findings in eyes after silicone oil injection.

Eight eyes were examined histologically after silicone oil injection. Intraretinal deposits suggestive of silicone were not present in attached retinas, but were frequently observed in detached retinas when subretinal silicone occurred. This may possibly be due to defects in the horizontal conducting structures of the retina such as those occurring in persistent detachment with disorganization of the retina. Morphologically, the retina was essentially normal 3.5 years after the silicone injection. This observation contradicts the idea that silicone oil has a toxic effect.

Eye↗
PubMed1984

[Silicone oil injection in the treatment of complicated retinal detachments].

Silicone oil injection was used in the treatment of 300 selected cases of complicated retinal detachment (after PVR, trauma, giant tears, macular holes, proliferative diabetic retinopathy) and in 7 prephthisical eyes. The anatomical and visual results are analyzed in a retrospective study. Total or partial reattachment was seen in 52% and 27% of the cases reexamined one year postoperatively. At least a navigating visual acuity was achieved in 54%. The results in the different indication groups are discussed. The silicone oil injection was performed after mobilization of the retina by means of pars plana vitrectomy and periretinal surgery.

Cataract Extraction↗
PubMed1983

The intraocular foreign body. Principles and problems in the management of complicated cases by pars plana vitrectomy.

In a retrospective study, the results of pars plana vitrectomy in treatment of injuries with intraocular foreign bodies were described. The patient material was subdivided into five different groups. In 41.6% of the cases, practical blinding could not be prevented. A visual acuity of 0.2 and better was present in 26.6% of the cases. The preoperative (45%) and postoperative (30%) traumatic retinal detachment have an extremely unfavorable prognosis with a reattachment rate of 40 or 21% respectively. The results in the treatment of injuries with magnetic splitters and their sequelae are very much better than those with nonmagnetic foreign bodies. The gunshot and air rifle pellet injuries were the most unfavorable group.

Eye Foreign Bodies↗
PubMed1983

Replantation of one third of the ciliary body after severe impalement injury.

A massive impalement injury to a 46-year-old man led to corneoscleral laceration, partial aniridia, traumatic cataract and rupture of the orbiculus ciliaris of more than one third of the circumference with extreme hypotony and practically blinding. In addition there was a massive circular haemorrhage into the suprachorioidal space. The course of the operative intervention leading to complete replantation of the ciliary body and so finally to normalisation of the intraocular pressure is described. The gratifying course could have been favoured by the diffuse retrochorioidal haemorrhage.

Ciliary Body↗
PubMed1979

[Autolock bands in encircling procedures (author's transl)].

Several modifications of autolock bands for retinal detachment surgery were tested. The most favourable results were achieved with a conical lock type applied to one end of the band. A controlled shortening to produce a calculated scleral indentation can be obtained by a millimeter scale.

Animals↗
PubMed1979

Pars plana vitrectomy after intraocular foreign bodies.

Pars plana vitrectomy after intraocular foreign body injuries led to a good or at least useful vision in 60% of the cases. Without exception, these were eyes which were practically blind or eyes which according to our experience would have been blinded without vitrectomy. Retinal detachments which have arisen preoperatively have a decisive negative effect on the prognosis: there is a low rate of healing in consequence of traumatic, contusional and metallotic retinal lesions and high MPP rate. Increasing surgical experience, so-called secondary vitrectomy 'in time' as well as improved and more refined vitrectomy instruments lead to better results.

Eye Foreign Bodies↗
PubMed1978

[Indications for pars plana vitrectomy after perforating injuries (author's transl)].

A preliminary report is given on 100 consecutive cases of pars plana vitrectomy after perforating injuries due to nonmagnetic IOFB (9 cases), magnetic IOFB (32 cases) and lacerating injuries (19 cases). Pars plana vitrectomy was performed to remove persistent vitreous membranes, to prevent proliferative transformation with following retinal detachment or to make the IOFB become visible for extraction. These eyes were practically amaurotic but in 43 cases out of 100 a positive results could be achieved (i.e. the retina being attached, posterior pole becoming visible). Indications, technique and complications of both pars plana vitrectomy and FB extraction are discussed. As a result pars plana vitrectomy should be performed within an interval of at least 2 weeks after the first intervention (i.e. wound closure of FB extraction).

Eye Foreign Bodies↗
PubMed1976

[A contribution to the management of paracentral retinal branch vein obstruction (author's transl)].

11 eyes (11 patients) with cystoid macular edema secondary to central retinal branch vein occlusion were treated with Laser-coagulations. In 11 eyes macular edema disappeared completely. In 10 eyes visual acuity improved during the next months. One eye developed a macular hole with decrease of visual acuity. The results were compared with a group of 33 eyes (33 patients) which were treated with drugs. In 9 eyes visual acuity improved. In spite of the small number in this survey Laser-coagulation may be of value in the management of cystoid macular edema following retinal branch vein occlusion.

Adult↗