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Biomedical subjects

Bruce E Katz

Publications and source records attributed to Bruce E Katz.

6 recordsLinked to original sources
PubMed2006

A quality rating scale for aesthetic surgical procedures.

BACKGROUND: Cosmetic dermatologic procedures offer the promise of visible aesthetic enhancement with minimal risk. While in recent years the number of available procedures has proliferated, there are few objective methods for evaluating the relative quality of these procedures for particular indications or specific patients. OBJECTIVE: (A) To develop a simple, easy-to-use numerical rating scale to assess the quality of cosmetic surgical procedures on a range of parameters pertaining to clinical efficacy and patient satisfaction; (B) to statistically validate the discriminative value of this rating scale. METHODS: (A) Patient and physician interviews were performed to elicit a list of factors that may collectively characterize the clinical efficacy and patient tolerability of cosmetic dermatologic procedures. A 0-100 point rating scale was developed based on these factors, with the face-validity of this scale checked by a group of patients and physicians; (B) Statistical analysis of the questionnaire was performed by asking 15 expert cosmetic dermatologic surgeons to use it to rate 23 common cosmetic dermatologic procedures, and analyzing the results. RESULTS: (A) An easy-to-use scale was constructed to assess the quality of cosmetic dermatologic procedures by rating the associated cost, risk, time (procedure and recovery), discomfort, results, and longevity of benefit. A "physician adjustment factor" was used to further increase the relevance of this 0-100 point scale for specific patients; (B) Repeated-measures analysis of variations (ANOVAs) performed on the data from the survey of experts demonstrated that this scale can be used to discriminate between common dermatologic procedures. The differences in mean subscores and total scores among procedures grouped by anatomic site and target lesion-type were significant at the level of P < .05. LIMITATIONS: Patient preferences exogenous to the rating scale may increase or decrease the suitability of specific procedures. CONCLUSIONS: Common cosmetic dermatologic procedures are of uniformly high quality, as per expert ratings on a systematic measure. This quality rating scale appears statistically valid and robust, given that expert raters assigned similar ratings to the same procedures but mean ratings were different across procedures. In the future, this quality rating scale can be used to assess novel interventions, and to help dermatologic surgeons faced with patient concern to optimally select among alternative procedures for a given indication.

Botulinum Toxins, Type A↗
PubMed2005

Power liposuction.

Power liposuction seems to be a significant advance in the evolution of the liposuction procedure. It allows for a faster, less painful recovery for the patient and is less of a strain on the surgeon, increasing the precision of the procedure. Complications are less than those seen with traditional liposuction performed under local tumescent anesthesia. Because it is performed under local anesthesia, power liposuction allows for fine tuning of the body contours with the patient in the standing position, reducing the number of postoperative touch-ups.

Adipose Tissue↗
PubMed2005

Breast enlargement after liposuction: comparison of incidence between power liposuction versus traditional liposuction.

BACKGROUND: We previously reported that a significant percentage of patients who underwent power liposuction noted an increase in their breast size. OBJECTIVE: To determine whether the documented observation of breast enlargement after power liposuction also occurs after traditional liposuction. METHODS: Charts were retrospectively reviewed and patient interviews were conducted for 70 female patients who had traditional liposuction. Analyses were made based on several factors, including age, pre- and postoperative weight, total fat aspirate volume, treated body areas, and hormonal medications for patients who did and did not have breast enlargement. These results were then compared with patients who experienced an increase in breast size after power, liposuction. RESULTS: Thirty-seven percent of the study patients (26 of 70) undergoing traditional liposuction reported an increase in breast size. Sixty-five percent of these women (17 of 26) reported an increase of one or more cup sizes. Larger fat aspirate volumes and liposuction of the abdomen and hip or abdomen, hip, and thigh areas were factors associated with the patients who noted breast enlargement after traditional liposuction. CONCLUSIONS: An increase in breast size was reported in 37% of patients after traditional liposuction and in 34% of patients after power liposuction. We conclude that breast enlargement after both traditional and power liposuction is not related to the mechanical effects of power liposuction. We propose the same hypothesis reported in our previous study that an altered androgen to estrogen ratio after liposuction is likely responsible for this noted occurrence. Weight gain may also be a factor.

Adipose Tissue↗
PubMed2003

Breast enlargement observed after power liposuction: a retrospective review.

BACKGROUND: After undergoing power liposuction to various body areas, a significant number of subjects reported an increase in their breast size that occurred spontaneously several months after their procedure. OBJECTIVE: To establish the incidence of breast enlargement among subjects who underwent power liposuction and to identify variables that are associated with the phenomenon. METHODS: A retrospective chart review and patient interview were performed from among 73 subjects who had undergone power liposuction at our center. Variables such as age, original weight, volume of aspirated fat, estrogen supplements, amount of weight loss or gain, and body areas aspirated were compared between those who experienced breast enlargement and those who did not. RESULTS: Thirty-four percent of the subjects (25 of 73) reported an increase in breast size. Of this group, 32% (8 of 25) reported an increase in cup size of one or more. Variables associated with the cohort who experienced breast enlargement included larger volume of fat aspiration and liposuction in the abdomen and hip location. CONCLUSION: Breast enlargement was observed in 34% of the subjects after power liposuction either in the form of a larger bra cup size or a subjective feeling of increased fullness. We hypothesize that an altered androgen to estrogen ratio after liposuction may be responsible for this change.

Adipose Tissue↗
PubMed2003

Power liposuction: a report on complications.

BACKGROUND: Liposuction is the most commonly performed cosmetic surgical procedure in the United States. Traditional liposuction (TL) performed under general anesthesia has been associated with reports of major systemic complications, including death. When TL is performed using only tumescent anesthesia, there have been no reported deaths and few significant systemic complications. Power liposuction (PL), a newer procedure in which a reciprocating cannula is used to evacuate fat, has reported benefits over TL. OBJECTIVE: To determine the complication rate associated with PL and to compare it with TL (regardless of the type of anesthesia). METHODS: In this study, 207 consecutive PL cases performed with tumescent anesthesia between August 2000 and May 2002 by a dermatologic surgeon (B.K.) and a plastic surgeon (M.B.) were reviewed retrospectively to determine the number of complications associated with the PL procedure. RESULTS: No systemic complications were identified, and only three local complications (all seromas) were found. This represents a complication rate of 1.4%. CONCLUSION: Our results demonstrate fewer complications when performing PL using tumescent anesthesia compared with TL using general anesthesia. When compared with TL using tumescent anesthesia, the overall complication rate did not differ significantly. We conclude that in addition to PL previously demonstrated benefits, the complication profile compares favorably with TL under local tumescent anesthesia. Therefore, PL may assume a more prominent role in the armamentarium of the surgeon performing liposuction.

Adolescent↗