The Pakistan Brain Tumour Epidemiology Study

Epidemiology of glioblastoma in Pakistan: a secondary analysis of the Pakistan Brain Tumor Epidemiology Study (PBTES)

PURPOSE

The incidence and outcomes of glioblastoma (GBM) patients in Pakistan remain unassessed owing to a lack of cancer registries and the absence of population-based studies. For any specific population-based oncological intervention, epidemiology must be studied. Therefore, this study aims to examine the epidemiological characteristics of glioblastoma patients in Pakistan, as part of a secondary analysis of a nationwide epidemiological study.

METHODS

Data comprising of sociodemographic, tumor and treatment characteristics of 2750 patients from the Pakistan Brain Tumor Epidemiology Study were extracted and analyzed for cases between January 1, 2019, and December 31, 2019. Chi-square tests identified outcome and treatment differences. Data analysis was performed using SPSS version 26.

RESULTS

A total of 260 GBM cases were analyzed, with a mean diagnosis age of 45 years. Males accounted for 68.8%. Most patients were from a middle- (39.6%) or lower-income (42.7%) socioeconomic background and received care from a public institution (63.8%). GBM tumors were mainly located in the frontal lobe with similar proportions of right and left laterality. A median distance of 119 km was traveled for oncological care, and the mean time to surgery from the initial radiological diagnosis was 72 days. Gross total resection was achieved in 47.3% of first surgeries, with 23 reoperations for recurrence. At the end of the study period, 33% of the GBM cohort was recorded as alive with 47% being lost to follow-up.

CONCLUSION

Our analysis is the first population-based analysis of GBM in Pakistan. This epidemiologic study can serve as a basis for future research in etiology, treatment, and outcomes for glioblastoma in the Pakistani population.

Surgical Practice in Resource-Limited Settings: Perspectives of Medical Students and Early Career Doctors: A Narrative Review

Introduction

Surgical practices in low-resource countries often fail to meet established standards. Both doctors and medical students have limited exposure to surgical cases, which hinders training and the development of surgical specialization. This study highlights the current state of surgical practice from a trainee's perspective, explores existing gaps in training and capacity building, and recommends practical solutions.

Methods

We conducted a literature search on PubMed, Google Scholar, and other scientific databases using search terms such as "surgical practice," "doctors' perspectives in surgical practice," "surgery in low- and middle-income countries," and "solutions to surgical inadequacy." We included studies published from 2015 to 2024, with exceptions for a few highly relevant studies published prior to 2015.

Results

We outline the limitations identified in the literature concerning surgical training and healthcare in low- and middle-income countries. Many centers lack adequate infrastructure, human resources, and training. These challenges negatively affect the skills and quality of surgical care. However, some centers demonstrate that surgical practice is feasible through collaboration with institutions established in higher-income contexts.

Conclusion

Telesurgery, task shifting and sharing, high-impact, low-cost surgeries, and collaborations with more developed health systems could effectively bridge the gap in surgical availability in LMICs.

Scalp metastasis from atypical meningioma: A case report and literature review

Key Clinical Message

Scalp metastasis from atypical meningioma, though rare, underscores the importance of meticulous surgical techniques to prevent tumor cell implantation. Early detection and comprehensive management, including surgery and adjuvant therapy, are crucial for optimal outcomes.

Abstract

Meningiomas are tumors of the meninges that originate in the arachnoid layer from arachnoid cap cells. Atypical meningiomas, classified as WHO grade 2 tumors, tend to metastasize and recur if not surgically managed properly. Scalp metastasis is a rare occurrence that presents as a subcutaneous elevation. A 33-year-old patient presented with a complaint of a constant, dull pressure headache persisting for the past 12 months, exacerbated by exertion, along with seizures and neuropsychiatric symptoms. The patient had no significant medical history but had undergone surgery 4 years ago for a WHO grade 2 meningioma. The current brain MRI revealed a dural tail sign, along with masses on both the left and right sides of the frontal lobe, extending to involve the skin on the forehead and scalp. The patient underwent surgical resection and adjuvant radiation therapy. At the 12-month follow-up, no neurological deterioration or tumor recurrence was observed. A literature review on scalp metastasis in patients with atypical meningioma was also conducted, including eight articles published up to September 2023. The mechanism of metastasis development appears to be consistent in all eight reported cases, involving the implantation of tumor cells during resection. Therefore, there is a critical need for meticulous intra- and post-operative surgical techniques to prevent such implantation.