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Biomedical subjects

E H Hartman

Publications and source records attributed to E H Hartman.

4 recordsLinked to original sources
PubMed2001

Contralateral reinnervation of midline muscles in facial paralysis.

We report on a patient with recovery of activity of the left orbicularis oris and nasalis muscles 3 months after a complete left facial palsy. Stimulation of the affected facial nerve evoked no responses, whereas contralateral facial nerve stimulation showed polyphasic responses with very long latencies in the nasalis and orbicularis oris muscles. Needle electromyography (EMG) revealed abnormal spontaneous activity in the left orbicularis oris muscle. The motor unit action potentials on the left side of the face could be recruited only during marked contraction of the corresponding muscles on the right and were of low voltage and polyphasic ("nascent potentials"). Contralateral reinnervation is probably due to sprouting of terminal branches crossing the midline of the face and innervating bundles of muscle fibers on the affected side. This phenomenon seems unfamiliar to most clinicians. Whether the activity is due to conduction along nerve fibers or muscle fibers crossing the midline is discussed.

Adult↗
PubMed1998

Preoperative injection using a diluted anesthetic/adrenaline solution significantly reduces blood loss in reduction mammaplasty.

Breast reductions are very common operations in the plastic surgical practice. The cosmetic results are generally satisfactory but are often accompanied with large volumes of blood lost. In this study, the reduction of blood loss together with other positive and negative effects of a preoperatively diluted anesthetic/adrenaline solution was tested. A group of 41 female patients treated with the infiltration solution was compared with a group of 29 female patients treated without the solution. No statistical differences were found in age at operation, weight, length, Quetelet index, amount of tissue resected, preoperative hemoglobin and hematocrit, postoperative drainage, duration of operation, and the viability of the skin flaps (p > 0.05). Blood loss was significantly less in the adrenaline-treated group measured in several ways (p < 0.0001). There were more adrenaline-treated patients with less hospitalization time compared with the nontreated group (p = 0.0858). In conclusion, diluted anesthetic/adrenaline solution significantly reduces blood loss in reduction mammaplasty without any adverse effects.

Adolescent↗
PubMed1992

Skin necrosis, a rare complication of coumarin therapy.

Coumarin congeners are frequently being prescribed in vascular surgery. The complication most often seen in haemorrhage. A less known complication is necrosis of skin and soft tissues. This rare complication is potentially lethal. The etiology is unclear, a relation with protein C deficiency seems likely. Early treatment with vitamin K and heparin may prevent the skin necrosis. After necrosis has occurred, surgical intervention is usually necessary.

Aged↗