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Biomedical subjects

H Paulmann

Publications and source records attributed to H Paulmann.

14 recordsLinked to original sources
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↗
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↗
PubMed1975

[Contribution to the problem of central serous retinal detachment (author's transl)].

We described extensive and multifocal serous detachment of the neuroretina in cases of Harada's disease, optic head pitting, coloboma of choroid and optic nerve-head and bullous retinal detachment (Gass). Peripapillary serous detachment occurred in an additional case after branch occlusion of central retinal artery. Systemic steroids were useful in Harada's disease. The other cases required photocoagulation or argon laser treatment. Bullous retinal detachment did not heal until a buckling procedure was performed. The serous detachment of the neuroretina is considered as an uniform tissue-reaction of choroid, pigmentepithelium and neuroretina. The pathogenesis for this is unknown.

Adult↗