{
  "abstract": "Objective:: To compare the effectiveness and safety of a novel geometric landmark technique with the conventional palpation technique for central venous cannulation.\n\nStudy Design:: Comparative observational study.\n\nPlace and Duration of the Study:: This study was conducted at National Medical Centre (NMC) from January 01, 2025 to June 30, 2025.\n\nMethods:: A total of 100 adult patients requiring central venous cannulation were enrolled and allocated into two groups based on the technique used. Group A (n = 50) underwent cannulation using the geometric landmark method, while Group B (n = 50) underwent cannulation using the conventional palpation technique. First-attempt success rate was the main outcome. Secondary outcomes were the number of attempts, arterial puncture, and change of technique. SPSS software was used for analysis. Chi-square test was used to compare categorical variables whereas the Mann-Whitney U test was applied to the non-normally distributed continuous variables. A P value of less than 0.05 was considered statistically significant.\n\nResults:: First-attempt success was significantly higher in the geometric landmark group compared to the palpation group (98% vs. 86%; P = 0.027). The geometric landmark technique was associated with fewer cannulation attempts (mean 1.00 ± 0.00 vs. 1.18 ± 0.57; P = 0.012). Arterial puncture occurred in one patient (2%) in each group, with no statistically significant difference (P = 1.000). Technique change was required in one patient (2%) in each group, with no statistically significant difference between the two techniques (P = 1.000). The two groups had similar baseline demographic and clinical characteristics.\n\nConclusion:: The geometric landmark technique significantly improves first-attempt success and reduces the number of cannulation attempts compared with the conventional palpation method while maintaining a comparable safety profile. This technique represents a practical and cost-effective alternative for central venous cannulation, particularly in resource-limited settings.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Anesthesiology, National Medical Centre, Karachi, Pakistan",
    "Department of Cardiac Surgery, Sheikh Zayed Hospital, Rahim Yar Khan, Pakistan",
    "Department of Cardiac Surgery, Ghulam Muhammad Mahar Medical College, Sukkur, Pakistan",
    "Department of Anesthesiology, General Practice Hospital, Islamabad, Pakistan",
    "Department of Anesthesiology, SIUT (Congenital Cardiac Surgery Section), Karachi, Pakistan"
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 6,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Muhammad Arslan Zahid"
    },
    {
      "affs": [
        0
      ],
      "name": "Ahmed Arslan Shahbaz"
    },
    {
      "affs": [
        1
      ],
      "name": "Dawood Hasan Khan"
    },
    {
      "affs": [
        2
      ],
      "name": "Maqsood Ahmed Siddiqui"
    },
    {
      "affs": [
        3
      ],
      "name": "Wajid Ali"
    },
    {
      "affs": [
        4
      ],
      "name": "Akbar Mistry"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/ce307rkgbqp08.bib",
  "cited_by": 0,
  "doi": "10.4103/aca.aca_43_26",
  "fulltext_url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC13743112/",
  "id": "ce307rkgbqp08",
  "issns": [
    "0971-9784",
    "0974-5181"
  ],
  "landing_url": "https://doi.org/10.4103/aca.aca_43_26",
  "language": "en",
  "licence": "CC-BY-NC-SA-4.0",
  "licence_label": "CC BY-NC-SA 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc-sa/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "heading",
      "Original Article"
    ],
    [
      "openalex",
      "2706|Central Venous Catheters and Hemodialysis"
    ]
  ],
  "openalex": "W7221540202",
  "pdf_url": null,
  "pmcid": "PMC13743112",
  "pmid": "42862664",
  "published": "2026-10-12",
  "publisher": "Wolters Kluwer -- Medknow Publications",
  "ris": "https://research.draconitic.com/paper/ce307rkgbqp08.ris",
  "sources": [
    {
      "first_seen": "2026-11-10T12:23:50Z",
      "native_id": "PMC13743112",
      "source": "pmc",
      "url": "https://doi.org/10.4103/aca.aca_43_26"
    }
  ],
  "subjects": [
    {
      "field": "medicine",
      "origin": "openalex:2706|Central Venous Catheters and Hemodialysis",
      "subfield": "general"
    }
  ],
  "title": "Comparison of a Novel Geometric Landmark Method Versus Conventional Palpation Technique for Central Venous Cannulation: A Comparative Observational Study of Two Techniques",
  "title_text": "Comparison of a Novel Geometric Landmark Method Versus Conventional Palpation Technique for Central Venous Cannulation: A Comparative Observational Study of Two Techniques",
  "type": "peer-reviewed",
  "updated_at": "2026-11-10T12:23:50Z",
  "url": "https://research.draconitic.com/paper/ce307rkgbqp08",
  "venue": "Annals of Cardiac Anaesthesia",
  "versions": []
}