Performance and oncologic safety of sentinel lymph node biopsy after neoadjuvant chemotherapy: Results from a tertiary care center in Lebanon.

BACKGROUND: The feasibility of sentinel lymph node biopsy (SLNB) after neoadjuvant chemotherapy (NACT) in initially node-positive patients is still controversial. We aim to evaluate the oncologic outcomes of SLNB after NACT and further compare the results between those who were initially node-negative and node-positive. METHODS: This is a retrospective cohort that included patients diagnosed with invasive breast cancer and had surgical management between January 2010 and December 2016. Survival and recurrence data after 3-5 years were collected from patients' records. We divided patients into Group A who were initially node-negative and had SLNB ± axillary lymph node dissection (ALND) and Group B who were node-positive and had SLNB ± ALND. RESULTS: Among initially node-negative patients, 43 out of 63 patients did SLNB (Group A). However, among initially node-positive patients only 28 out of 123 patients did SLNB (Group B). Out of the 71 patients who did SLNB after NACT, 26 patients had positive SLNs with only 14 patients who further underwent ALND. The identification rate of SLNB was 100% in Group A and 96.4% in Group B. The survival curves by nodal status showed no significant difference between overall survival and recurrence-free survival at 5 years between patients in Group A versus Group. CONCLUSION: The results suggest that in properly selected patients, SLNB can be feasible after NACT. Our results resemble the reported literature on accuracy of SLNB after NACT and adds to the growing pool of data on this topic.

The implications and management of complex biliary injuries at a tertiary hepatobiliary specialty center.

Injuries of the biliary tract and complex injuries involving vascular and parenchymal tissue can be detrimental despite the improved use of laparoscopy. Complex biliary injuries are variable depending on the type of injury as well as patient and surgeon factors. We present four cases of complex biliary injuries at our tertiary referral center with hepatobiliary expertise: biliary stenosis with obstruction, double duct system anatomy, combined right hepatic arterial transection and biliary duct injury, and a complete pedicle injury. Early identification and specialized repair of complex biliary injuries is essential to minimize patient morbidity. Notably, consulting a specialist intraoperatively in case of difficult dissection and visualization or a suspected injury and considering bail-out strategies such as a subtotal cholecystectomy or conversion are safe approaches to minimize complex biliary injuries. Earlier recognition and repair of complex biliary injuries improves outcomes when immediate intraoperative repair can be performed rather than delayed postoperatively.

Management of ruptured hepatocellular carcinoma invading the gastrointestinal tract: A case report.

INTRODUCTION AND IMPORTANCE: Hepatocellular carcinoma (HCC) constitutes most of primary liver cancers. HCC invading the gastrointestinal tract (GIT) is considered a rare entity with limited reports in the literature. Management can either be palliative or curative such as transarterial chemoembolization (TACE) followed by definitive resection. Here, we present a case of direct HCC invasion of the GIT that was managed by surgical resection. CASE PRESENTATION: A 74-year-old male with a history of a liver mass, found to have HCC. Admitted for medical optimization prior to definitive resection, however his stay was complicated by hemorrhagic shock, with imaging findings of hemoperitoneum suggestive of spontaneous rupture of the mass. TACE was done to stabilize the patient prior to resection. Patient was taken immediately to the operating room for definitive resection. CLINICAL DISCUSSION: Most cases of direct HCC invasion into the GI tract present mainly with GI bleed. Some patients, present with abdominal pain without any warning signs of an occult GI bleed. Thus, absence of an occult GI bleeding does not exclude a GIT invasion. Management options are several, but in advanced stages, management is not limited to palliation. CONCLUSION: GIT invasion is a rare complication of HCC reported in scarcity in the literature. Most cases present with GI bleeding but with some rare cases, they present with more generalized symptoms like abdominal pain, weight loss or fatigue. Despite having a poor prognosis, complete surgical resection of the tumor may be a reassuring and life prolonging treatment option for these patients.

Primary squamous cell carcinoma of the colon: A rare case report.

INTRODUCTION AND IMPORTANCE: Squamous cell carcinoma (SCC) of the colon is an extremely rare pathologic entity, accounting for less than 1 % of all colorectal cancer cases. They tend to be very aggressive with poor outcomes and treatment strategies are still controversial due to the paucity of data available to guide management. CASE PRESENTATION: A case of a cecal mass with metastatic liver lesions. Initially diagnosed as an adenocarcinoma, the patient underwent resection with metastasectomy. Despite achieving negative surgical margins and undergoing adjuvant chemotherapy, the patient relapsed and presented with a new mass in the descending colon. The patient underwent resection with subsequent follow-up revealing distant metastasis. The patient passed away soon after. CLINICAL DISCUSSION: Primary colorectal SCC has similar presentation to adenocarcinoma of the colon. Unfortunately, it usually presents at a late stage. Diagnosis of colorectal SCC requires histologic confirmation of SCC plus exclusion of possible causes. Management is predominantly definitive radical resection followed by adjuvant chemotherapy and radiotherapy. Surgical margins should be at least 5 cm, preferably 10 cm. Lymph node yield greater than 20 was associated with improved survival. Studies assessing the prognosis of primary colorectal SCC following chemo-radiotherapy have not been done. CONCLUSION: Surgery remains the most vital important step in the management of colonic SCC. The role of chemotherapy and/or radiation remains questionable. Depending on the aggressiveness of this disease the need for further frequent.

Music as an adjunct to combination analgesia for neonatal circumcision: A randomized controlled trial.

INTRODUCTION: Neonatal circumcision is one of the most frequently performed procedures in male infants; it is also particularly painful. In a previous trial, we showed that the combination of Eutectic Mixture of Local Anesthetics (EMLA) + Sucrose + Ring Block (RB) was significantly effective in reducing pain during circumcision. OBJECTIVE: In this study, we added music as an adjunct aiming to further reduce the pain scores. STUDY DESIGN: This was a double-blinded randomized controlled trial comparing EMLA + Sucrose + RB (Control) to EMLA + Sucrose + RB + Music (Intervention). The trial setting was the normal nursery of a university teaching hospital. One hundred and three healthy newborn males were randomized to each of the intervention and control groups. Babies were videotaped (face and torso) during the procedure for assessment of pain by two blinded and independent reviewers. The primary outcome measure was the NIPS score; secondary outcomes included heart rate, oxygen saturation and crying time. RESULTS: The NIPS score of the intervention group (EMLA + Sucrose + RB + Music [2.6 ± 1.6]) was significantly higher than that of the control group (EMLA + sucrose + RB [1.4 ± 0.9]) (p = 0.00). Inter-rater reliability was high (κ .89). The intervention group registered significantly higher mean heart rate (142 bpm) and increased mean crying time (5.44 s) compared to the control group (135 bpm and 1.63s, respectively) (p = 0.01) and (p = 0.00). No adverse events were noted. Delivery music medicine by playing it from an iPad in the procedure room did not reduce pain during circumcision. DISCUSSION: There is overwhelming evidence in the literature describing the effectiveness of music on pain management especially in the NICU. However, our results did not align with the general trend; not only did music medicine fail to enhance analgesia but it might have had the opposite effect, further agitating the infants, as indicated by the significantly increased heart rate, crying time and NIPS scores of the participants in the intervention group. Limitations of our study include the fact that this is a single center study and the method of delivering music via iPads instead of noise-canceling headphone. CONCLUSION: Our results showed that music, delivered in this manner, may have increased agitation. We affirm the fact that the combination of EMLA + Sucrose + RB is highly effective for managing pain during circumcision and further reduction of already low scores might not be possible. CLINICAL TRIAL REGISTRATION: Registry Name: ClinicalTrials.gov; Registration number: NCT04252313; link: https://clinicaltrials.gov/ct2/show/NCT04252313.

Role of vitamin B12 in treating recurrent aphthous stomatitis: A review.

Vitamin B12, a water-soluble vitamin, plays a vital role in the formation of hematopoietic stem cells and has been associated with oral mucosal diseases, mainly recurrent aphthous stomatitis (RAS). The latter is a debilitating condition, and B12 was proposed as a potential treatment given its role in regenerating oral mucosal tissue. There is conflicting evidence that B12 deficiency causes RAS. Five of the seven randomized controlled trials reviewed used the inactive form of B12 (cyanocobalamin) as intervention, while the other two used the active form (methylcobalamin). Of the latter two, buccal discs (500 µg B12) showed significant improvement and reduced perceived pain in 77% of the subjects, and submucosal injections showed a significant difference in pain, starting from the second day. Moreover, three studies administered vitamin B12 sublingually with different dosages, which revealed that the higher dose (1000 µg) achieved a significant reduction in outbreaks, number, and duration of ulcers, especially after six months. Multivitamins showed no difference in new RAS episodes and duration. Injectable B12 was compared with the oral form, and nearly 50% of the injection group reported a desired response by the eighth week. An ointment form (500 µg) showed a significant reduction in pain levels after two days of treatment. Based on the available literature, we suggest that a daily dose of 1000 µg of vitamin B12 sublingually for six months can be used to treat RAS. Nevertheless, this conclusion should be considered tentative due to the lack of high quality, large scale studies.