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Biomedical subjects

D B Hawtof

Publications and source records attributed to D B Hawtof.

10 recordsLinked to original sources
PubMed1989

Complications of reduction mammaplasty: comparison of nipple-areolar graft and pedicle.

A retrospective study of breast reductions in 268 patients by two plastic surgeons was performed. Particular attention was paid to those patients treated by inferior pedicle techniques; these patients were compared with those treated by free nipple grafts. According to our findings, patients with skin loss were heavier and had longer suprasternal notch-to-nipple distances. Patients who had free nipple grafts were older and heavier and had larger specimen weights and longer suprasternal notch-to-nipple distances. Fifty-four of the original 268 patients were included in a substudy of larger breasts, defined as those with a specimen weight of over 700 g. Nineteen patients underwent free nipple grafts, and 35 underwent inferior pedicle techniques. None of the 19 patients having free nipple grafts developed complications, whereas 6 of the 35 undergoing inferior pedicle techniques sustained significant complications. We conclude that free nipple grafts should be considered over inferior pedicles in heavier patients with breast ptosis.

Adult↗
PubMed1989

Treatment of peripheral ischemia secondary to lidocaine containing epinephrine.

Accidental injection of local anesthetics containing epinephrine into a digit can cause distal tissue necrosis. Norepinephrine infiltration in subcutaneous tissue also causes tissue necrosis. Phentolamine has been used to prevent necrosis from norepinephrine. Because both epinephrine and norepinephrine are alpha- and beta-adrenergic stimulators, the rat foot model was developed to study the possible use of phentolamine or labetalol in protection against tissue necrosis after injection of epinephrine in the extremity. Phentolamine was found to be useful in preventing tissue necrosis after the injection of local anesthetic containing epinephrine in the skin of the rat foot. Labetalol was found to be less effective in preventing tissue necrosis. Phentolamine may be useful in preventing tissue necrosis after the inadvertent injection of epinephrine containing local anesthetics in the digit.

Animals↗
PubMed1976

Reconstruction of mammary hypoplasma associated with chest wall deformities.

Three young women who had significant unilateral hypoplasia of the breast, accentuated by marked rib deformities and hypoplasia of the pectoralis muscle, were treated by two-staged reconstructions. A custom-made chest wall implant and a breast prosthesis were used. In the absence of cardiorespiratory compromise, these are simpler operations than rib osteoplasties and the cosmetic result is better.

Adolescent↗