April 2020 HSC Section 4 - Plastic and Reconstructive Problems

Aesth Plast Surg

Temporary pain

pain at the

injection site

NA

NA

NA

NA

Temporary

Complications

Activated before use/ 572 9 10 3 platelets/ l l

2nd centrifugation. Not activated/ 88.2 ± 21.7 9 10 4 l l 18 cc blood, 1100 rpm 9 10 min.

Activated by Ca2 ? /NA

Activated by Ca2 ? /NA

2nd centrifugation. Activated by Ca2 ? /NA

The 20 mL citrated blood, 460 g 9 8 min

for 8 min. Activated by Ca2 ? / 1.523.82 ± 35,000 platelets/uL

15 mL blood, 1700 rpm 9 15 min for

1st centrifugation, then 3000 rpm 9 5 min for

60 ml of blood, 1200 rpm 9 10 min.

20-30 ml blood, 1800 rpm 9 10 min for

1st centrifugation, 3000 rpm 9 10 min for

9 ml blood, 3000 rpm 9 6 min for

1st centrifugation, then 3000 rpm 9 3 min for 2nd centrifugation.

counts

Assessment method PRP preparation/platelet Dermoscopy, Digital camera, Histologic examination

Global photography, Physician’s and patient’s global

assessment scale,

Standardized photo trichograms Computerized trichogram,

Microscopic evaluation

Video camera, Histologic

Examination

Global photography, Phototrichogram NA

Yes PRP Saline Three injections at weeks 0, 4, and 8/0.1 ml/cm 2

intervals of 1 month/ 0.15 mL/cm 2

intervals of 30 days/ 0.1 ml/cm 2

Six injections, two times a week for three weeks/ 0.2 ml/cm 2

of 1 month/1.5 ml in 2.5 9 2.5 cm

2, 4, 6, and 9/NA

Experimental method/ Injection dose

CCT 20 (14/6) NA No PRP distilled water

CCT 26 (16/10) NA Yes PRP Saline Five injections at weeks 0,

Yes PRP Saline Three injections at

Yes PRP Saline Three injections at

Yes PRP Saline Two injections at intervals

Control

group

Experimental group

Half

head

classification

stage IIa–IV

classification

stage IIa–IV

Norwood II–V

classification I–III IV–VI

Patient

characteristics

Female: Ludwig

Sample

size male/ female

CCT 10 (10/0) Norwood–Hamilton

RCT 23 (23/0) Norwood–Hamilton

RCT 22 (11/11) Male: Hamilton–

RCT 17 (17/0) Hamilton–Norwood

Table 1 Characteristics of included studies Author Study type Takikawa [ 5 ] 2011

Alves [ 9 ]

M apar [ 10 ]

Cervelli [ 6 ]

Gentile [ 7 ]

Abaroa [ 8 ]

V.

2014

2015

2016

2016

2016

123

102