Exploring the application of CHATGPT in plastic surgery: a comprehensive systematic review.

OBJECTIVE: To determine the impact of ChatGPT in plastic surgery research and assess the authenticity of such contributions. METHODS: The study conducted a literature search in Sep'23 from databases like Pubmed, Google Scholar, SCOPUS, and OVID Medline.The following keywords 'ChatGPT', 'chatbot', 'reconstruction', 'aesthetic' and 'plastic surgery' were used. 32 papers were included from the initial 131 results of articles. English language articles from November 2022 to July 2023 discussing ChatGPT's role in plastic and aesthetic surgery were included whereas non-English documents, irrelevant content, and non-academic sources were excluded from the study. RESULTS: The manuscripts included in the systematic review had a diverse range, including original research articles, case reports, letters to the editor, and editorials. Among the included studies, there were 9 original research articles, 1 case report, 23 letters to the editor, and 2 editorials. Most publications originated from the United States (18) and Australia (7). Analysis suggested concerns, such as inaccuracies, plagiarism, outdated knowledge, and lack of personalized advice. Various authors recommend using ChatGPT as a supplementary tool rather than a replacement for human decision-making in medicine. CONCLUSIONS: ChatGPT shows potential in plastic surgery research, concerns about inaccuracies and outdated knowledge may provide deceiving information and it always requires human input and verification.

Robotic-assisted free flap harvesting for diverse soft tissue reconstruction: a PRISMA scoping review of clinical outcomes over the last decade.

Introduction: The aim of our study was to assess the advantages and limitations of robotic technology in diverse reconstructive procedures. METHODS: A scoping review was conducted in Oct'23, on published studies from 2013 to 2023, focussing on robotic-assisted free flap harvesting. Three databases Ovid-MEDLINE, Scopus, and PubMed were searched. Original research studies reporting robotic-assisted free flap harvest were included. Studies on lesion excision, microvascular anastomosis, local flap harvest, roboticassisted flap inset, review articles, abstract-only studies, non-English documents, and animal studies were excluded from this review. RESULTS: Sixteen studies met the inclusion criteria out of a total of 318, searched initially. These studies included a total of 128 patients, who underwent robotic-assisted free flap harvest for the reconstruction of various defects, with 140 free flaps harvested. The most common flaps harvested by robotic technique were deep inferior epigastric artery perforator (DIEP) flap 120 (85.7%), radial forearm free (RFF) flap 11 (7.9%), latissimus dorsii flap 4 (2.9%), rectus abdominus flap 4 (2.9%), and omental flap 1 (0.7%). Breast reconstruction was the major procedure done i.e. 120 (85.7%) followed by head and neck 11 (7.9%) and limb defects 9 (6.4%) reconstruction procedures. The reported clinical outcomes were acceptable in all the studies with a 99% flap success rate and minimal complications. Variability in operating time was observed depending upon surgical steps undertaken with robotic systems. CONCLUSIONS: This scoping review highlights the role of robotic-assisted free flap harvesting in plastic surgery and its potential benefits on clinical outcomes, due to its high precision and minimal invasiveness. However, challenges like cost effectiveness, resource distribution and learning curve are there.

Stem Cells On Youtube: National Vs International Content.

YouTube is one of the most popular video-based social media sites across the globe. The role of stem cell transplant has not been deeply explored on YouTube. The current narrative review was planned to assess the viewership of content available on YouTube related to stem cells. The videos were classified based on type of content, duration, number of views, comments and number of likes. A total of 40 videos were downloaded under the search terms "stem cells in Pakistan" and "stem cells". Of them, 6(15%) were repeat videos, and 34(85%) were unique. The findings revealed that in 10(25%) most viewed videos from Pakistan, 6(60%) contained opinions from non-expert physicians. Among the 10(25%) most viewed international videos, the information providers were science educators in 4(40%) videos and researchers in 2 (20%). Notably, no content from Pakistan was present among the top relevant international videos. Over 27 million views were included in the total number of videos that were analysed. YouTube is a powerful tool to spread knowledge and support public health decision-making. However, misleading information regarding stem cell can lead to adverse outcomes.

Median to Radial Nerve Transfer: An 8-Year Experience From a Lower-Middle Income Country.

INTRODUCTION: With an incidence of 2-16%, radial nerve palsy is one of the common forms of nerve injuries globally. Radial nerve palsy causes debilitating effects including loss of elbow extension, wrist drop and loss of finger extension. Reparative surgical pathways range from primary repair and neurolysis, to nerve grafting, nerve transfers, and tendon transfers. Due to ease of performance and acceptability and reproducibility of outcomes, tendon transfers are considered the gold standard of radial nerve palsy repair. However, independent finger function cannot be achieved and as such may not give truly desirable results. In lower-middle income countries, the question of nerve transfer versus tendon transfer for patients who are keen to get back to work is key. While tendon transfer recovery is faster, the functional loss is often considered devastating for fine hand function due to loss of grip secondary to lack of wrist and finger extension. In this study, we present our experience of performing median nerve transfers for radial nerve palsy in Pakistan. METHODS: We performed a retrospective case-series of patients undergoing median to radial nerve transfer for radial nerve palsy over a period of 6 y, from 2012 to 2019. Patients with radial nerve palsy were diagnosed via electromyography and nerve conduction studies. The procedure involved coapting the branches of the flexor carpi radialis and flexor digitorum superficialis (long and ring finger) nerves to the posterior interosseous nerve and extensor carpi radialis brevis, respectively. Patients were assessed using the Medical Research Council scale for muscle strength of wrist, finger and thumb extension separately at 1 y time. Our results were then compared to results from similar nerve transfer studies. RESULTS: We operated on 10 right-hand dominant patients, eight males and two females with a median age of 33 y (6-63 y). four sustained injury to the right hand and six to the left. Causes of the injuries included road traffic accident (n = 3), firearm injury (n = 4), shrapnel (n = 1), iatrogenic injury (injection in deltoid region (n = 1) and fall (n = 1). Types of fracture included mid humerus fracture, fracture of the surgical neck of the humerus, and supracondylar fracture of the humerus. Median time to surgery since injury was 4 mo (1-8 mo). Independent wrist extension was M4+ in all patients and independent finger extension was M4+ in seven and M4-in two patients. However, a patient who presented late at 8 mo had poorer finger outcomes with extension at M2-. All patients had independent movement of fingers. CONCLUSIONS: Nerve transfer is a reliable method of post traumatic nerve repair and reinnervation, particularly in lower-middle income countries, even in cases where the nerve damage is severe and extensive and up to 6 mo may have elapsed between injury and presentation. Timely median to radial nerve transfer is a highly recommended option for radial nerve palsy, with regular follow-ups and physical therapy added to ensure positive outcomes.

Association of the Depth of Invasion With Recurrence Rates of Basal Cell Carcinoma in a Tertiary Health Care Facility: A Retrospective Study Over a Period of Six Years.

Background Basal cell carcinoma (BCC) is one of the most common types of cutaneous malignancies and the most frequently occurring form of cancer worldwide. The incidence of basal cell carcinoma is difficult to determine due to its wide geographic variations; however, it has been increasing worldwide with an annual increase of 7% in the number of reported cases. Although BCC is more prevalent in the aging population, diagnosis in younger individuals is steadily increasing. BCC has overall low mortality, however, it leads to significant economic and physical impact on patients and their families along with adding burden to the healthcare system. The primary risk factor for the development of BCC is increased cumulative sun exposure, particularly to UV radiation. The UV index of Karachi averages around 12 (extremely high) during summer months, putting the population at a significantly higher risk of developing BCC in the long term. Objectives This audit was undertaken with the following primary objectives: to use the data collected to determine possible prognostic factors for BCC, to measure the rate of recurrence and the number of new primary tumors detected, to study the completeness of follow-up by patients, and to co-relate histopathological findings with the recurrence rate of basal cell carcinoma. Methods A retrospective analysis was performed for all patients with BCC who had undergone surgical resection over a six-year time period. Patient charts were reviewed for demographic information, tumor size, onset-to-diagnosis, anatomic location, clinical subtype, histologic differentiation, method of surgical treatment, and recurrence. Data were entered and analyzed in SPSS version 23 (IBM Corp., Armonk, NY). Results The review identified cases of BCC in 99 patients. Of the 99 patients, 60.39% were men and 38.38% were women. The most frequent age group was 65-85-year-olds (42 patients, 42.85%) for BCC. Based on the aesthetic units of the face, the most common location was the nasal unit (30 cases, 30.30%) for BCC. Most of the lesions were closed primarily; however; local flaps were used in the case of surgical defects. The recurrence rate was 19.19% for BCC in this study. Our study included 1.0% of patients who were classified as Clark classification level 2 of BCC, 6.1% as Clark level 3, 23.4% as Clark level 4, and 0.16% as Clark level 5. Recurrence rates were seen to increase with increasing Clark classification level in this study. Conclusion In our study, many characteristics of BCC were compared to previously published reports and the results were seen to be generally similar. This study correlates the recurrence of BCC with Clark's classification, showing that depth of invasion is a significant factor in predicting recurrence. There is a paucity of literature regarding the depth of invasion of BCC along with its' Clarks classification and recurrence. Further studies can help explore and establish the characteristics of BCC.

Adipose derived stem cells for the peripheral nerve regeneration: review of techniques and clinical implications.

Adipose tissue is considered as a multipotent organ with multiple cellular varieties, like adipose derived stem cells with ability to differentiate into nerve cells. This review is an attempt to summarize the techniques of harvesting, isolating and delivery of adipose derived stem cells to injured nerve area and various interactions involved in the release of neurotrophic and angiogenic factors from stem cells. Neuro-regenerative potential of ADSCs is explained on the basis of "Paracrine hypothesis", according to which ADSCs secrete multiple neurotrophic factors and upregulates secretion of these neurotrophic factors by Schwann cells, leading to improved myelination, regeneration and decreases nerve fibrosis. ADSCs are easily available in abundance and undergo multi-step processing before grafting to nerve injury site. Acute inflammation, hypoxia and co-culturing with Schwann cells promotes neural differentiation of ADSCs. ADSCs and Schwann cells are reported to have similar mitogenic and differentiation factors, moreover, the micro-environment containing various growth factors and extracellular matrix plays a crucial role in promoting myelin formation by stem cells. Various animal model studies have shown improved outcomes when ADSCs were used for the management of peripheral nerve injuries after direct repair, nerve grafting, nerve conduit, nerve allograft. This review contains various pre-clinical studies that have shown outcomes of adipose derived stem cells in nerve regeneration in different grades of nerve injuries.

Aboard the Smile Train: Outcomes of Primary Cleft Palate Repair at a Tertiary Care Center: À bord du Smile Train : les résultats cliniques de réparations de fentes palatines dans un centre de soins tertiaires.

INTRODUCTION: Cleft palate repair is considered to be a safe procedure, yet still carries a 5% to 30% risk of complications. This study sought to assess the outcomes of this procedure in a high-burden Asian country that partners with the Smile Train to perform cleft surgeries. METHODS: The Aga Khan University medical records database was queried for pediatric patients undergoing cleft surgery between 2014 and 2017. Data were abstracted from the patient medical records, and details of the clinical, demographic factors, and postoperative outcomes were assessed. RESULTS: Among 142 patients with orofacial clefts, 102 (72%) underwent primary cleft palate repair, one-third (n = 36, 35%) of whom were operated as part of the Smile Train. The median preoperative hemoglobin was 11.4 g/dL (interquartile range: 10.7-12.0 g/dL), whereas the median weight was 8.3 kg (7.7-11.4 kg). Nearly two-thirds (n = 64, 63%) of the cohort underwent preoperative cardiology screening, with only a minority undergoing orthodontic treatment (n = 6, 6%). Approximately 15% (n = 15) of patients experienced a postoperative complication, most often a fistula (n = 11, 73%). On multivariable analysis, with each unit increase in hemoglobin levels, there was a 50% reduction in the odds of experiencing a complication (odds ratio: 0.51, 95% CI: 0.28-0.87). There were no in-patient deaths among the cohort. CONCLUSION: The results of the current study provide useful information to key stakeholders including patients, plastic surgeons, and policy makers on the outcomes of cleft palate repair in a developing country.

INTRODUCTION: La réparation des fentes palatines est considérée comme une intervention sécuritaire, mais comporte un risque de complications de 5 % à 30 %. La présente étude vise à évaluer les résultats de cette intervention dans un pays asiatique au fardeau élevé où les partenaires de Smile Train corrigent des fentes palatines. MÉTHODOLOGIE: Les chercheurs ont fouillé la base de données des dossiers de l'université Aga Khan pour en extraire les patients pédiatriques qui ont subi une intervention de fente palatine entre 2014 et 2017. Ils ont résumé les données des dossiers médicaux des patients et évalué le détail des facteurs cliniques et démographiques ainsi que les résultats postopératoires. RÉSULTATS: Sur les 142 patients ayant une fente labiopalatine, 102 (72 %) ont subi une réparation palatine primaire, dont le tiers a été opéré (n = 36, 35 %) par l'équipe de Smile Train. L'hémoglobine préopératoire médiane était de 11,4 g/dl (ratio interquartile de 10,7 à 12,0 g/dl), et le poids médian, de 8,3 kg (7,7 g à 11,4 kg). Près des deux tiers des membres de la cohorte (n = 64, 63 %) ont subi un dépistage préopératoire, et seule une minorité a suivi un traitement orthodontique (n = 6, 6 %). Environ 15 % des patients (n = 15) ont souffert d'une complication postopératoire, la plupart du temps sous forme de fistule (n = 11, 73 %). À l'analyse multivariée, à chaque nouvelle unité d'hémoglobine, le risque de complication diminuait de 50 % (rapport de cotes 0,51, IC à 95 %, 0,28 à 0,87). Aucun patient hospitalisé n'est décédé au sein de la cohorte. CONCLUSION: Les résultats de la présente étude fournissent de l'information utile aux principaux intervenants, y compris les patients, les plasticiens et les décideurs, sur les résultats des réparations de la fente palatine dans un pays industrialisé.

Use of Cephalic Vein for Venous Anastomosis in Head and Neck Reconstruction: A Case Series.

Purpose: To describe the use of the cephalic vein as a recipient vessel for venous outflow in head and neck reconstruction. The cephalic vein is used as a vessel in cases where there is a paucity of veins in the neck. This may be due to previous surgery, previous radiation therapy, or advanced cancer. The cephalic vein may also be used to salvage a failing free flap. Methods: It is a retrospective review of 230 free flaps that had been used in head and neck reconstruction performed from July 2014 to July 2018 by a single surgeon. Results: There were 6 patients in whom the cephalic vein was used as a recipient vessel. The cephalic vein was used in 2 cases where a tumor was involved with the internal jugular vein, in 1 case where a previous neck dissection had been done, in 1 case where internal jugular vein had iatrogenic damage, and in 2 cases a salvage procedure was done. In all cases, the cephalic vein was rotated above the clavicle. The cephalic vein easily reached the free flap vein and had a good caliber. There were no failures in any of the patients. Conclusion: The cephalic vein is a good option for venous anastomoses in patients in whom there is a paucity of recipient vessels in the neck.

Should 1 or 2 Venous Anastomoses Be Done in Microsurgical Flap Transfer?

BACKGROUND: Venous compromise is still the most common cause of free flap failure. The need of a second venous anastomosis to prevent free flap failure is controversial. It is proposed that the use of dual venous anastomoses reduces venous compromise. However, some surgeons suggest that dual venous drainage reduces venous blood flow causing a potential risk of thrombosis. OBJECTIVE: This study aimed to compare the frequency of reexploration secondary to venous thrombosis in free flap surgeries in reconstruction of soft tissue defects with 1-vein versus 2-vein anastomosis. MATERIALS AND METHODS: We performed a retrospective cohort study including 298 flaps. In 180 of these patients, 2-vein anastomosis was done, and in 118, 1-vein anastomosis was done. The study was conducted at Aga Khan University Hospital from January 2017 to December 2018. RESULTS: The number of venous anastomosis was not associated with flap survival. The group with dual anastomosis required more frequent reexploration as compared with 1 venous anastomosis group (8% vs 1.7%).Outcome and salvage rate were better in the 2-vein group as compared with the 1-vein group (64% vs 50%). CONCLUSION: There is no difference in flap survival in single or dual venous anastomosis, but we have noticed higher reexploration rates in the 2-vein group. However, outcome is better in the 2-vein group.

Free flap reconstruction after lower limb trauma - outcome analysis using National Surgical Quality Improvement Programme (NSQIP) parameters.

OBJECTIVE: To assess the outcomes of free flap reconstructions performed for the management of lower limb trauma. METHODS: This retrospective study was conducted at Aga Khan University Hospital (AKUH), Karachi and included data from June 2017 to May 2019 of patients who underwent free flap reconstruction as part of management of lower limb trauma. RESULTS: The mean age of the 8 adult patients was 34±11 years. Also included were two paediatric patients aged 7 and 8 years. Nine of the total 10 patients were male. Road traffic accidents were the most common mechanism of injury, occurring in 5(50%), followed by blast injuries in 3(33%). The anterolateral thigh flap was the most common type of flap used for reconstruction, done in 8(80%) patients. Flap survival rate was 90% and full flap loss was seen in only 1(10%) patient. Re-exploration surgery was done in 5(50%) patients during the same hospital stay. The length of hospital stay varied greatly from 4 to 105 days depending on associated diagnoses and whether the free flap surgery was performed during an elective admission. One patient did not survive to discharge, and the cause of death was attributed to septic complications. Functional outcomes on follow-up could not be determined. CONCLUSIONS: Free flap reconstruction surgery is an effective solution for management of lower limb trauma and has a high flap survival rate. Further studies are needed to ascertain the functional outcomes of limb salvage after free flap surgery.

Lateral Arm Flap: Its Usage as Pedicle and Free Flap.

Introduction The lateral arm flap is an excellent flap for both local and microvascular reconstruction. For local reconstruction on the upper extremity or as a distant microvascular flap, its advantages include short operation time, thin pliable tissue, non-dominant vessel, and minimal donor site morbidity. Moreover, it fulfills the goal of optimal reconstruction of form, function, and aesthetics. The objective is to share our experience of using the lateral arm flap, both as a free flap and as a pedicled flap. Methods After taking exemption from the ethical review committee (ERC) of Aga Khan University Hospital, a retrospective data analysis of patients who had undergone lateral arm flap at the Plastic and Reconstructive Surgery department of the Aga Khan University Hospital was carried out from January 2012 to December 2019. The data examined included the patient's age, gender, diagnosis, location of the defect, size of the flap, and outcome of the flap at three weeks post-operation. For free flaps, data of the recipient artery used for anastomosis and the number of veins anastomosed were also included. Results Over a period of eight years, 33 lateral arm flaps were performed, including 23 free flaps and 10 pedicled flaps. The average size of the free flap was 12x6 cm and that of the pedicled flap was 8x5 cm. In the free-flap group, there was a failure in three flaps, two of which were due to arterial anastomosis in the zone of injury. There were no failures in the pedicled flap group. Conclusion The lateral arm flap is a reliable flap, with consistent anatomy, which can be used for coverage in different parts of the body.

Comparative study of toxicological assessment of yttrium oxide nano- and microparticles in Wistar rats after 28 days of repeated oral administration.

Despite their enormous advantages, nanoparticles (NPs) have elicited disquiet over their safety. Among the numerous NPs, yttrium oxide (Y2O3) NPs are utilised in many applications. However, knowledge about their toxicity is limited, and it is imperative to investigate their potential adverse effects. Therefore, this study explored the effect of 28 days of repeated oral exposure of Wistar rats to 30, 120 and 480 mg/kg body weight (bw) per day of Y2O3 NPs and microparticles (MPs). Before initiation of the study, characterisation of the particles by transmission electron microscopy, dynamic light scattering, Brunauer-Emmett-Teller and laser Doppler velocimetry was undertaken. Genotoxicity was evaluated using the comet and micronucleus (MN) assays. Biochemical markers aspartate transaminase, alanine transaminase, alkaline phosphatase, malondialdehyde, superoxide dismutase, reduced glutathione, catalase and lactate dehydrogenase in serum, liver and kidney were determined. Bioaccumulation of the particles was analysed by inductively coupled plasma optical emission spectrometry. The results of the comet and MN assays showed significant differences between the control and groups treated with 120 and 480 mg/kg bw/day Y2O3 NPs. Significant biochemical alterations were also observed at 120 and 480 mg/kg bw/day. Haematological and histopathological changes were documented. Yttrium (Y) biodistribution was detected in liver, kidney, blood, intestine, lungs, spleen, heart and brain in a dose- and the organ-dependent manner in both the particles. Further, the highest levels of Y were found in the liver and the lowest in the brain of the treated rats. More of the Y from NPs was excreted in the urine than in the faeces. Furthermore, NP-treated rats exhibited much higher absorption and tissue accumulation. These interpretations furnish rudimentary data of the apparent genotoxicity of NPs and MPs of Y2O3 as well as the biodistribution of Y. A no-observed adverse effect level of 30 mg/kg bw/day was found after oral exposure of rats to Y2O3 NPs.

Genotoxicity study of nickel oxide nanoparticles in female Wistar rats after acute oral exposure.

Nanoparticles (NPs) apart from their widespread advantages and increased utilisation, have aroused concerns over their safe use. Nickel (II) oxides (NiO) NPs are used as catalysts, biosensors and in many of the consumer products. The increasing use of NiO NPs necessitates an improved understanding of their potential impact on the environment and human health. In this study, we investigated the acute genotoxic effects of NiO NPs by oral route administration with three different doses (125, 250 and 500 mg/kg bw). Before the in vivo toxicological evaluation, characterisation of particles by Transmission Electron Microscopy, X-ray diffraction, Dynamic Light Scattering (DLS) and Laser Doppler Velocimetry analysis was performed. Genotoxicity biomarkers such as comet, micronucleus and chromosomal aberrations (CAs) assays were utilised in this study. To document the uptake, retention and elimination of the NPs, biodistribution studies were also performed. The particle size obtained from Transmission Electron Microscopy analysis for NiO NPs was 15.62 ± 2.59 nm. The mean hydrodynamic diameter and PdI of NiO NPs in Milli-Q water suspension obtained by DLS was 168.9 ± 17.13 nm and 0.375, respectively. Comet assay revealed significant (P < 0.001) DNA damage at 500 mg/kg bw dose in the PBL, liver and kidney cells of rats at the 24-h sampling time. The result of micronucleus and CAs tests was in agreement with the comet assay data. Biodistribution of NiO NPs revealed a maximum accumulation of Ni in the liver tissue at the 24-h sampling time. Our study showed significant DNA damage at the high dose level and the effect was more prominent at 24-h sampling time, providing preliminary evidence that the NiO NPs are capable of inducing genotoxicity when administered through the oral route. However, mechanistic investigations are needed before drawing any firm conclusion regarding the toxicology of NiO NPs.

A double toe-to-hand transfer in a young girl.

A 14 years old girl lost all the fingers of her right hand except the thumb in a Toka (fodder chopping machine) 4 months ago. The fingers had been amputated at the level of the metacarpophalangeal joint. A double toe transfer was done using the second and third toes of her right foot to reconstruct the second and third digits of her right hand using microvascular technique. Bones were fixed with K-wires, corresponding tendons and nerves were attached, the dorsalis pedis artery was anastamosed end-to-side to the radial artery and the vein was anastamosed to the cephalic vein. The patient recovered well. K-wires were removed at 6 weeks and physiotherapy was started. After 4 months, the patient was able to use the hand for normal hand function and could make a tripod pinch.