Keith A. Loper

950 total citations
18 papers, 660 citations indexed

About

Keith A. Loper is a scholar working on Surgery, Anesthesiology and Pain Medicine and Cardiology and Cardiovascular Medicine. According to data from OpenAlex, Keith A. Loper has authored 18 papers receiving a total of 660 indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in Surgery, 9 papers in Anesthesiology and Pain Medicine and 3 papers in Cardiology and Cardiovascular Medicine. Recurrent topics in Keith A. Loper's work include Anesthesia and Pain Management (11 papers), Pain Management and Opioid Use (5 papers) and Nausea and vomiting management (4 papers). Keith A. Loper is often cited by papers focused on Anesthesia and Pain Management (11 papers), Pain Management and Opioid Use (5 papers) and Nausea and vomiting management (4 papers). Keith A. Loper collaborates with scholars based in United States. Keith A. Loper's co-authors include L. B. Ready, Michael L. Nessly, Lorie Wild, George R. Gay, Suzanne E. Rapp, Brian L. Ready, Alan N. Sandler, Michael J. Brody, Douglas M. Coldwell and Henry L. Bennett and has published in prestigious journals such as Radiology, Pain and Anesthesiology.

In The Last Decade

Keith A. Loper

18 papers receiving 620 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Keith A. Loper United States	12	441	364	156	84	79	18	660
J. Jage Germany	13	336 0.8×	311 0.9×	85 0.5×	73 0.9×	33 0.4×	55	572
David R. Danielson United States	13	306 0.7×	155 0.4×	218 1.4×	70 0.8×	24 0.3×	24	562
Oguzhan Dagtekin Germany	16	406 0.9×	251 0.7×	100 0.6×	82 1.0×	43 0.5×	33	633
Ferruh Bilgin Türkiye	9	170 0.4×	92 0.3×	66 0.4×	86 1.0×	36 0.5×	16	401
Vincent J. Collins United States	11	241 0.5×	181 0.5×	88 0.6×	40 0.5×	41 0.5×	43	609
Erik Helander United States	14	364 0.8×	207 0.6×	154 1.0×	70 0.8×	33 0.4×	22	551
Tomi Taivainen Finland	19	605 1.4×	662 1.8×	212 1.4×	33 0.4×	104 1.3×	52	1.1k
Yury Khelemsky United States	9	282 0.6×	184 0.5×	124 0.8×	47 0.6×	28 0.4×	19	398
Susan Nimmo United Kingdom	11	320 0.7×	129 0.4×	174 1.1×	29 0.3×	17 0.2×	14	445
Roger Schmid Canada	9	461 1.0×	382 1.0×	79 0.5×	160 1.9×	24 0.3×	13	680

Countries citing papers authored by Keith A. Loper

Since Specialization

Citations

This map shows the geographic impact of Keith A. Loper's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Keith A. Loper with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Keith A. Loper more than expected).

Fields of papers citing papers by Keith A. Loper

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Keith A. Loper. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Keith A. Loper. The network helps show where Keith A. Loper may publish in the future.

Co-authorship network of co-authors of Keith A. Loper

This figure shows the co-authorship network connecting the top 25 collaborators of Keith A. Loper. A scholar is included among the top collaborators of Keith A. Loper based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Keith A. Loper. Keith A. Loper is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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18 of 18 papers shown

Ready, L. B., Keith A. Loper, Michael L. Nessly, & Lorie Wild. (1992). Postoperative Epidural Morphine is Safe on Surgical Wards. Survey of Anesthesiology. 36(3). 164–165. 8 indexed citations

Ready, L. B., Keith A. Loper, Michael L. Nessly, & Lorie Wild. (1991). Postoperative Epidural Morphine Is Safe on Surgical Wards. Anesthesiology. 75(3). 452–456. 162 indexed citations

Loper, Keith A., et al.. (1990). Epidural and Intravenous Fentanyl Infusions Are Clinically Equivalent After Knee Surgery. Anesthesia & Analgesia. 70(1). 72???75–72???75. 136 indexed citations

Loper, Keith A., et al.. (1990). EPIDURAL MORPHINE PROVIDES SAFE AND EFFECTIVE ANALGESIA ON HOSPITAL WARDS. Anesthesia & Analgesia. 70(Supplement). S248–S248. 2 indexed citations

Loper, Keith A. & L. B. Ready. (1989). Epidural morphine after anterior cruciate ligament repair: a comparison with patient-controlled intravenous morphine.. PubMed. 68(3). 350–2. 53 indexed citations

Loper, Keith A., et al.. (1989). Prophylactic Transdermal Scopolamine Patches Reduce Nausea in Postoperative Patients Receiving Epidural Morphine. Anesthesia & Analgesia. 68(2). 144–146. 35 indexed citations

Coldwell, Douglas M. & Keith A. Loper. (1989). Regional Anesthesia for Hepatic Arterial Embolization. Radiology. 172(3). 1039–1040. 14 indexed citations

Loper, Keith A., et al.. (1989). Paralyzed with pain: the need for education. Pain. 37(3). 315–316. 51 indexed citations

Loper, Keith A.. (1989). Clinical Toxicology of Cocaine. Drug Safety. 4(3). 174–185. 32 indexed citations

10.

Loper, Keith A., et al.. (1989). Epidural Morphine Provides Greater Pain Relief Than Patient-Controlled Intravenous Morphine Following Cholecystectomy. Anesthesia & Analgesia. 69(6). 826???828–826???828. 16 indexed citations

11.

Loper, Keith A. & L. B. Ready. (1989). Epidural Morphine After Anterior Cruciate Ligament Repair. Anesthesia & Analgesia. 68(3). 350???352–350???352. 26 indexed citations

12.

Loper, Keith A., et al.. (1989). EPIDURAL AND INTRAVENOUS FENTANYL INFUSIONS ARE CLINICALLY EQUIVELENT FOLLOWING KNEE SURGERY. Anesthesiology. 71(Supplement). A1149–A1149. 3 indexed citations

13.

Loper, Keith A., Douglas M. Coldwell, John Lecky, & Catherine Dowling. (1989). Celiac Plexus Block for Hepatic Arterial Embolization. Anesthesia & Analgesia. 69(3). 398???399–398???399. 3 indexed citations

14.

Gay, George R. & Keith A. Loper. (1988). The use of labetalol in the management of cocaine crisis. Annals of Emergency Medicine. 17(3). 282–283. 63 indexed citations

15.

Loper, Keith A., Brian L. Ready, & Michael J. Brody. (1988). Patient-Controlled Anxiolysis with Midazolam. Anesthesia & Analgesia. 67(11). 1118–1119. 3 indexed citations

16.

Loper, Keith A., Brian L. Ready, & Michael J. Brody. (1988). Patient-Controlled Anxiolysis with Midazolam. Anesthesia & Analgesia. 67(11). 1118–1119. 24 indexed citations

17.

Loper, Keith A., L. B. Ready, & B. Hugh Dorman. (1988). PROPHYLACTIC TRANSDERMAL SCOPOLAMINE REDUCES NAUSEA IN POSTOPERATIVE PATIENTS RECEIVING EPIDURAL MORPHINE. Anesthesiology. 69(3A). A409–A409. 10 indexed citations

18.

Loper, Keith A., et al.. (1987). Comparison of Halothane and Isoflurane for Rapid Anesthetic Induction. Anesthesia & Analgesia. 66(8). 766???768–766???768. 19 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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