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Biomedical subjects

M T Chen

Publications and source records attributed to M T Chen.

At least 145 records · Page 8Linked to original sources
PubMed1985

Transpositional digital replantation.

When a functionally important digit is injured as part of a multiple digit injury, transpositional digital replantation is worth considering to preserve greater hand function and to avoid or minimize the necessity for secondary reconstructive procedures. We present two such cases with transpositional digital replantation. The indications for this technique are: 1) multiple digit injury, 2) severe crush injury, 3) the possibility of preserving more and better joints in some fingers, and 4) injury distal to Tamai's zone V (11). The benefits of this procedure are that function can be better with the more completely preserved digits replanted into the most useful positions and of similar lengths. Difficulties are encountered when there are large discrepancies in size of surviving digits, and problems with soft-tissue coverage, tendon repair, a 'step' at the fracture site after bone fixation, and with vessel anastomosis. Use of this procedure can result in preservation of hand function and fewer secondary reconstructive procedures.

Adolescent↗
PubMed1984

Evaluation of survival in digital replantation with thermometric monitoring.

Since January 1981, we have used the Exacon thermometer to monitor skin temperature of 180 completely amputated digits during and after replantation surgery. When skin temperature on the first day after surgery was above 32 degrees, 153 of 154 replanted digits survived. In contrast, when skin temperature was 32 degrees or lower, 22 of 26 replanted digits failed. Data were analyzed by the Probit model, which indicated that skin temperature monitoring with 32 degrees as critical temperature is significant at P = 0.01. Also, critical temperature was tested in the range of 31.0 degrees to 33 degrees at intervals of 0.1 degree. We found the probability of predicting the viability for replanted digits is highest when skin temperature is 32 degrees or higher.

Amputation, Traumatic↗
PubMed1984

Revascularization of digits after thirty-three hours of warm ischemia time: a case report.

A case of digits revascularized after 33 hours of warm ischemia time is described. Ischemic changes had occurred already with ultimate loss of the distal segments, but most of the fingers survived to provide the patient with adequate function. Although the commonly accepted limit of warm ischemia time has been reported to be within 6 to 12 hours, revascularization of digits can be attempted in selected cases even after an apparent prolonged warm ischemia time.

Adult↗
PubMed1978

Genetic counseling as part of hospital care.

In order to determine whether genetic counseling was part of routine inpatient care in a medical school affiliated children's hospital, a retrospective review of selected patient charts was performed. The charts of a sample of 478 patients with any of ten specified types of genetic or congenital disorders were carefully studied to document whether the recording of genetic counseling had been given, "offered only," or "considered only." The disorders included were of four types: chromosomal, single gene, polygenic, and those characterized by multiple congenital anomalies, with or without a syndrome designation. One thousand six hundred and thirty-three (4.2 percent) of the hospital's patients had one of the ten disorders, but in the sample of charts studied genetic counseling was given five times and "offered only" twice; in no case was it "considered only." [The authors suggest that under-utilization of genetic knowledge and resources may be remedied in part by incorporation of a formal genetic disposition into hospital discharge protocols.]

Child↗
PubMedDate not supplied

Facial mutilation after an assault with chemicals: 15 cases and literature review.

Facial mutilation after an assault with chemicals is rarely discussed in the literature even though it is a devastating injury that occurs worldwide and is not prohibited or punished by special laws. It is our purpose to describe the devastating outcome of facial mutilation after an assault with chemicals and to draw attention to this injury as a worldwide problem. We studied fifteen patients who sustained facial mutilation with chemicals. The common story was that the patient's spouse was the perpetrator, that sulfuric acid was used, and that the deed occurred after marital or financial discord. All victims were disfigured severely and most became reclusive and rarely left their homes. Six patients (40%) had total bilateral blindness and one suffered partial loss of vision. Lower eyelid ectropion (14), microstomia (12), cervical flexion contracture (10), ear deformity (8), and nostril stenosis (6) were common. Few of the perpetrators were prosecuted. We reviewed the literature and found that the problem has been described all over the world, and that the outcome is similar to that which we described. The problem deserves worldwide recognition and attention.

Adolescent↗